include_HEADERS = \
all.h \
assert.h \
+ file_encoder.h \
file_decoder.h \
format.h \
metadata.h \
ordinals.h \
seekable_stream_decoder.h \
+ seekable_stream_encoder.h \
stream_decoder.h \
stream_encoder.h
#include "assert.h"
#include "file_decoder.h"
+#include "file_encoder.h"
#include "format.h"
#include "metadata.h"
#include "ordinals.h"
#include "seekable_stream_decoder.h"
+#include "seekable_stream_encoder.h"
#include "stream_decoder.h"
#include "stream_encoder.h"
* From there you can go on to look at the documentation of
* individual functions. You can see different views of the individual
* functions through the links in top bar across this page.
+ *
+ * \section embedded_developers Embedded Developers
+ *
+ * libFLAC has grown larger over time as more functionality has been
+ * included, but much of it may be unnecessary for a particular embedded
+ * implementation. Unused parts may be pruned by some simple editing of
+ * src/libFLAC/Makefile.am. In general, the decoders, encoders, and
+ * metadata interface are all independent from each other.
+ *
+ * It is easiest to just describe the dependencies:
+ *
+ * - All modules depend on the \link flac_format Format \endlink module.
+ * - The decoders and encoders are independent of each other.
+ * - The metadata interface requires the file decoder.
+ * - The decoder and encoder layers depend on the layers below them, but
+ * not above them; e.g. the seekable stream decoder depends on the stream
+ * decoder but not the file decoder
+ *
+ * For example, if your application only requires the stream decoder, no
+ * encoders, and no metadata interface, you can remove the seekable stream
+ * decoder, file decoder, all encoders, and the metadata interface, which
+ * will greatly reduce the size of the library.
*/
/** \defgroup flac FLAC C API
--- /dev/null
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2002 Josh Coalson
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifndef FLAC__FILE_ENCODER_H
+#define FLAC__FILE_ENCODER_H
+
+#include "seekable_stream_encoder.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+/** \file include/FLAC/file_encoder.h
+ *
+ * \brief
+ * This module contains the functions which implement the file
+ * encoder.
+ *
+ * See the detailed documentation in the
+ * \link flac_file_encoder file encoder \endlink module.
+ */
+
+/** \defgroup flac_file_encoder FLAC/file_encoder.h: file encoder interface
+ * \ingroup flac_encoder
+ *
+ * \brief
+ * This module contains the functions which implement the file
+ * encoder.
+ *
+ * The basic usage of this encoder is as follows:
+ * - The program creates an instance of an encoder using
+ * FLAC__file_encoder_new().
+ * - The program overrides the default settings using
+ * FLAC__file_encoder_set_*() functions.
+ * - The program initializes the instance to validate the settings and
+ * prepare for encoding using FLAC__file_encoder_init().
+ * - The program calls FLAC__file_encoder_process() or
+ * FLAC__file_encoder_process_interleaved() to encode data, which
+ * subsequently writes data to the output file.
+ * - The program finishes the encoding with FLAC__file_encoder_finish(),
+ * which causes the encoder to encode any data still in its input pipe,
+ * rewind and write the STREAMINFO metadata to file, and finally reset
+ * the encoder to the uninitialized state.
+ * - The instance may be used again or deleted with
+ * FLAC__file_encoder_delete().
+ *
+ * The file encoder is a wrapper around the
+ * \link flac_seekable_stream_encoder seekable stream encoder \endlink which supplies all
+ * callbacks internally; the user need specify only the filename.
+ *
+ * Make sure to read the detailed description of the
+ * \link flac_seekable_stream_encoder seekable stream encoder module \endlink since the
+ * \link flac_stream_encoder stream encoder module \endlink since the
+ * file encoder inherits much of its behavior from them.
+ *
+ * \note
+ * The "set" functions may only be called when the encoder is in the
+ * state FLAC__FILE_ENCODER_UNINITIALIZED, i.e. after
+ * FLAC__file_encoder_new() or FLAC__file_encoder_finish(), but
+ * before FLAC__file_encoder_init(). If this is the case they will
+ * return \c true, otherwise \c false.
+ *
+ * \note
+ * FLAC__file_encoder_finish() resets all settings to the constructor
+ * defaults.
+ *
+ * \{
+ */
+
+
+/** State values for a FLAC__FileEncoder
+ *
+ * The encoder's state can be obtained by calling FLAC__file_encoder_get_state().
+ */
+typedef enum {
+
+ FLAC__FILE_ENCODER_OK = 0,
+ /**< The encoder is in the normal OK state. */
+
+ FLAC__FILE_ENCODER_NO_FILENAME,
+ /**< FLAC__file_encoder_init() was called without first calling
+ * FLAC__file_encoder_set_filename().
+ */
+
+ FLAC__FILE_ENCODER_SEEKABLE_STREAM_ENCODER_ERROR,
+ /**< An error occurred in the underlying seekable stream encoder;
+ * check FLAC__file_encoder_get_seekable_stream_encoder_state().
+ */
+
+ FLAC__FILE_ENCODER_FATAL_ERROR_WHILE_WRITING,
+ /**< A fatal error occurred while writing to the encoded file. */
+
+ FLAC__FILE_ENCODER_ERROR_OPENING_FILE,
+ /**< An error occurred opening the output file for writing. */
+
+ FLAC__FILE_ENCODER_MEMORY_ALLOCATION_ERROR,
+ /**< Memory allocation failed. */
+
+ FLAC__FILE_ENCODER_ALREADY_INITIALIZED,
+ /**< FLAC__file_encoder_init() was called when the encoder was
+ * already initialized, usually because
+ * FLAC__file_encoder_finish() was not called.
+ */
+
+ FLAC__FILE_ENCODER_UNINITIALIZED
+ /**< The encoder is in the uninitialized state. */
+
+} FLAC__FileEncoderState;
+
+/** Maps a FLAC__FileEncoderState to a C string.
+ *
+ * Using a FLAC__FileEncoderState as the index to this array
+ * will give the string equivalent. The contents should not be modified.
+ */
+/* @@@@ double-check mapping */
+extern const char * const FLAC__FileEncoderStateString[];
+
+
+/***********************************************************************
+ *
+ * class FLAC__FileEncoder
+ *
+ ***********************************************************************/
+
+struct FLAC__FileEncoderProtected;
+struct FLAC__FileEncoderPrivate;
+/** The opaque structure definition for the file encoder type.
+ * See the \link flac_file_encoder file encoder module \endlink
+ * for a detailed description.
+ */
+typedef struct {
+ struct FLAC__FileEncoderProtected *protected_; /* avoid the C++ keyword 'protected' */
+ struct FLAC__FileEncoderPrivate *private_; /* avoid the C++ keyword 'private' */
+} FLAC__FileEncoder;
+
+
+/***********************************************************************
+ *
+ * Class constructor/destructor
+ *
+ ***********************************************************************/
+
+/** Create a new file encoder instance. The instance is created with
+ * default settings; see the individual FLAC__file_encoder_set_*()
+ * functions for each setting's default.
+ *
+ * \retval FLAC__FileEncoder*
+ * \c NULL if there was an error allocating memory, else the new instance.
+ */
+FLAC__FileEncoder *FLAC__file_encoder_new();
+
+/** Free an encoder instance. Deletes the object pointed to by \a encoder.
+ *
+ * \param encoder A pointer to an existing encoder.
+ * \assert
+ * \code encoder != NULL \endcode
+ */
+void FLAC__file_encoder_delete(FLAC__FileEncoder *encoder);
+
+/***********************************************************************
+ *
+ * Public class method prototypes
+ *
+ ***********************************************************************/
+
+/** This is inherited from FLAC__SeekableStreamEncoder; see
+ * FLAC__seekable_stream_encoder_set_streamable_subset().
+ *
+ * \default \c true
+ * \param encoder An encoder instance to set.
+ * \param value See above.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * \c false if the encoder is already initialized, else \c true.
+ */
+FLAC__bool FLAC__file_encoder_set_streamable_subset(FLAC__FileEncoder *encoder, FLAC__bool value);
+
+/** This is inherited from FLAC__SeekableStreamEncoder; see
+ * FLAC__seekable_stream_encoder_set_do_mid_side_stereo().
+ *
+ * \default \c false
+ * \param encoder An encoder instance to set.
+ * \param value See above.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * \c false if the encoder is already initialized, else \c true.
+ */
+FLAC__bool FLAC__file_encoder_set_do_mid_side_stereo(FLAC__FileEncoder *encoder, FLAC__bool value);
+
+/** This is inherited from FLAC__SeekableStreamEncoder; see
+ * FLAC__seekable_stream_encoder_set_loose_mid_side_stereo().
+ *
+ * \default \c false
+ * \param encoder An encoder instance to set.
+ * \param value See above.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * \c false if the encoder is already initialized, else \c true.
+ */
+FLAC__bool FLAC__file_encoder_set_loose_mid_side_stereo(FLAC__FileEncoder *encoder, FLAC__bool value);
+
+/** This is inherited from FLAC__SeekableStreamEncoder; see
+ * FLAC__seekable_stream_encoder_set_channels().
+ *
+ * \default \c 2
+ * \param encoder An encoder instance to set.
+ * \param value See above.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * \c false if the encoder is already initialized, else \c true.
+ */
+FLAC__bool FLAC__file_encoder_set_channels(FLAC__FileEncoder *encoder, unsigned value);
+
+/** This is inherited from FLAC__SeekableStreamEncoder; see
+ * FLAC__seekable_stream_encoder_set_bits_per_sample().
+ *
+ * \warning
+ * Do not feed the encoder data that is wider than the value you
+ * set here or you will generate an invalid stream.
+ *
+ * \default \c 16
+ * \param encoder An encoder instance to set.
+ * \param value See above.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * \c false if the encoder is already initialized, else \c true.
+ */
+FLAC__bool FLAC__file_encoder_set_bits_per_sample(FLAC__FileEncoder *encoder, unsigned value);
+
+/** This is inherited from FLAC__SeekableStreamEncoder; see
+ * FLAC__seekable_stream_encoder_set_sample_rate().
+ *
+ * \default \c 44100
+ * \param encoder An encoder instance to set.
+ * \param value See above.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * \c false if the encoder is already initialized, else \c true.
+ */
+FLAC__bool FLAC__file_encoder_set_sample_rate(FLAC__FileEncoder *encoder, unsigned value);
+
+/** This is inherited from FLAC__SeekableStreamEncoder; see
+ * FLAC__seekable_stream_encoder_set_blocksize().
+ *
+ * \default \c 1152
+ * \param encoder An encoder instance to set.
+ * \param value See above.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * \c false if the encoder is already initialized, else \c true.
+ */
+FLAC__bool FLAC__file_encoder_set_blocksize(FLAC__FileEncoder *encoder, unsigned value);
+
+/** This is inherited from FLAC__SeekableStreamEncoder; see
+ * FLAC__seekable_stream_encoder_set_max_lpc_order().
+ *
+ * \default \c 0
+ * \param encoder An encoder instance to set.
+ * \param value See above.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * \c false if the encoder is already initialized, else \c true.
+ */
+FLAC__bool FLAC__file_encoder_set_max_lpc_order(FLAC__FileEncoder *encoder, unsigned value);
+
+/** This is inherited from FLAC__SeekableStreamEncoder; see
+ * FLAC__seekable_stream_encoder_set_qlp_coeff_precision().
+ *
+ * \note
+ * In the current implementation, qlp_coeff_precision + bits_per_sample must
+ * be less than 32.
+ *
+ * \default \c 0
+ * \param encoder An encoder instance to set.
+ * \param value See above.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * \c false if the encoder is already initialized, else \c true.
+ */
+FLAC__bool FLAC__file_encoder_set_qlp_coeff_precision(FLAC__FileEncoder *encoder, unsigned value);
+
+/** This is inherited from FLAC__SeekableStreamEncoder; see
+ * FLAC__seekable_stream_encoder_set_do_qlp_coeff_prec_search().
+ *
+ * \default \c false
+ * \param encoder An encoder instance to set.
+ * \param value See above.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * \c false if the encoder is already initialized, else \c true.
+ */
+FLAC__bool FLAC__file_encoder_set_do_qlp_coeff_prec_search(FLAC__FileEncoder *encoder, FLAC__bool value);
+
+/** This is inherited from FLAC__SeekableStreamEncoder; see
+ * FLAC__seekable_stream_encoder_set_do_escape_coding().
+ *
+ * \default \c false
+ * \param encoder An encoder instance to set.
+ * \param value See above.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * \c false if the encoder is already initialized, else \c true.
+ */
+FLAC__bool FLAC__file_encoder_set_do_escape_coding(FLAC__FileEncoder *encoder, FLAC__bool value);
+
+/** This is inherited from FLAC__SeekableStreamEncoder; see
+ * FLAC__seekable_stream_encoder_set_do_exhaustive_model_search().
+ *
+ * \default \c false
+ * \param encoder An encoder instance to set.
+ * \param value See above.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * \c false if the encoder is already initialized, else \c true.
+ */
+FLAC__bool FLAC__file_encoder_set_do_exhaustive_model_search(FLAC__FileEncoder *encoder, FLAC__bool value);
+
+/** This is inherited from FLAC__SeekableStreamEncoder; see
+ * FLAC__seekable_stream_encoder_set_min_residual_partition_order().
+ *
+ * \default \c 0
+ * \param encoder An encoder instance to set.
+ * \param value See above.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * \c false if the encoder is already initialized, else \c true.
+ */
+FLAC__bool FLAC__file_encoder_set_min_residual_partition_order(FLAC__FileEncoder *encoder, unsigned value);
+
+/** This is inherited from FLAC__SeekableStreamEncoder; see
+ * FLAC__seekable_stream_encoder_set_max_residual_partition_order().
+ *
+ * \default \c 0
+ * \param encoder An encoder instance to set.
+ * \param value See above.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * \c false if the encoder is already initialized, else \c true.
+ */
+FLAC__bool FLAC__file_encoder_set_max_residual_partition_order(FLAC__FileEncoder *encoder, unsigned value);
+
+/** This is inherited from FLAC__SeekableStreamEncoder; see
+ * FLAC__seekable_stream_encoder_set_rice_parameter_search_dist().
+ *
+ * \default \c 0
+ * \param encoder An encoder instance to set.
+ * \param value See above.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * \c false if the encoder is already initialized, else \c true.
+ */
+FLAC__bool FLAC__file_encoder_set_rice_parameter_search_dist(FLAC__FileEncoder *encoder, unsigned value);
+
+/** This is inherited from FLAC__SeekableStreamEncoder; see
+ * FLAC__seekable_stream_encoder_set_total_samples_estimate().
+ *
+ * \default \c 0
+ * \param encoder An encoder instance to set.
+ * \param value See above.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * \c false if the encoder is already initialized, else \c true.
+ */
+FLAC__bool FLAC__file_encoder_set_total_samples_estimate(FLAC__FileEncoder *encoder, FLAC__uint64 value);
+
+/** This is inherited from FLAC__SeekableStreamEncoder; see
+ * FLAC__seekable_stream_encoder_set_metadata().
+ *
+ * \default \c NULL, 0
+ * \param encoder An encoder instance to set.
+ * \param metadata See above.
+ * \param num_blocks See above.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * \c false if the encoder is already initialized, else \c true.
+ */
+FLAC__bool FLAC__file_encoder_set_metadata(FLAC__FileEncoder *encoder, FLAC__FileMetadata **metadata, unsigned num_blocks);
+
+/** Set the output file name encode to.
+ *
+ * \note
+ * The filename is mandatory and must be set before initialization.
+ *
+ * \note
+ * Unlike the FLAC__FileDecoder, the filename does not interpret "-" for
+ * \c stdout; writing to \c stdout is not relevant in the file encoder.
+ *
+ * \default \c NULL
+ * \param encoder A encoder instance to set.
+ * \param value The output file name.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \code value != NULL \endcode
+ * \retval FLAC__bool
+ * \c false if the encoder is already initialized, or there was a memory
+ * allocation error, else \c true.
+ */
+FLAC__bool FLAC__file_encoder_set_filename(FLAC__FileEncoder *encoder, const char *value);
+
+/** Get the current encoder state.
+ *
+ * \param encoder An encoder instance to query.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__FileEncoderState
+ * The current encoder state.
+ */
+FLAC__FileEncoderState FLAC__file_encoder_get_state(const FLAC__FileEncoder *encoder);
+
+/** Get the state of the underlying seekable stream encoder.
+ * Useful when the file encoder state is
+ * \c FLAC__FILE_ENCODER_SEEKABLE_STREAM_ENCODER_ERROR.
+ *
+ * \param encoder An encoder instance to query.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__SeekableStreamEncoderState
+ * The seekable stream encoder state.
+ */
+FLAC__SeekableStreamEncoderState FLAC__file_encoder_get_seekable_stream_encoder_state(const FLAC__FileEncoder *encoder);
+
+/** Get the "streamable subset" flag.
+ * This is inherited from FLAC__SeekableStreamEncoder; see
+ * FLAC__seekable_stream_encoder_get_streamable_subset().
+ *
+ * \param encoder An encoder instance to query.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * See FLAC__file_encoder_set_streamable_subset().
+ */
+FLAC__bool FLAC__file_encoder_get_streamable_subset(const FLAC__FileEncoder *encoder);
+
+/** Get the "mid/side stereo coding" flag.
+ * This is inherited from FLAC__SeekableStreamEncoder; see
+ * FLAC__seekable_stream_encoder_get_do_mid_side_stereo().
+ *
+ * \param encoder An encoder instance to query.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * See FLAC__file_encoder_get_do_mid_side_stereo().
+ */
+FLAC__bool FLAC__file_encoder_get_do_mid_side_stereo(const FLAC__FileEncoder *encoder);
+
+/** Get the "adaptive mid/side switching" flag.
+ * This is inherited from FLAC__SeekableStreamEncoder; see
+ * FLAC__seekable_stream_encoder_get_loose_mid_side_stereo().
+ *
+ * \param encoder An encoder instance to query.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * See FLAC__file_encoder_set_loose_mid_side_stereo().
+ */
+FLAC__bool FLAC__file_encoder_get_loose_mid_side_stereo(const FLAC__FileEncoder *encoder);
+
+/** Get the number of input channels being processed.
+ * This is inherited from FLAC__SeekableStreamEncoder; see
+ * FLAC__seekable_stream_encoder_get_channels().
+ *
+ * \param encoder An encoder instance to query.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * See FLAC__file_encoder_set_channels().
+ */
+unsigned FLAC__file_encoder_get_channels(const FLAC__FileEncoder *encoder);
+
+/** Get the input sample resolution setting.
+ * This is inherited from FLAC__SeekableStreamEncoder; see
+ * FLAC__seekable_stream_encoder_get_bits_per_sample().
+ *
+ * \param encoder An encoder instance to query.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * See FLAC__file_encoder_set_bits_per_sample().
+ */
+unsigned FLAC__file_encoder_get_bits_per_sample(const FLAC__FileEncoder *encoder);
+
+/** Get the input sample rate setting.
+ * This is inherited from FLAC__SeekableStreamEncoder; see
+ * FLAC__seekable_stream_encoder_get_sample_rate().
+ *
+ * \param encoder An encoder instance to query.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * See FLAC__file_encoder_set_sample_rate().
+ */
+unsigned FLAC__file_encoder_get_sample_rate(const FLAC__FileEncoder *encoder);
+
+/** Get the blocksize setting.
+ * This is inherited from FLAC__SeekableStreamEncoder; see
+ * FLAC__seekable_stream_encoder_get_blocksize().
+ *
+ * \param encoder An encoder instance to query.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * See FLAC__file_encoder_set_blocksize().
+ */
+unsigned FLAC__file_encoder_get_blocksize(const FLAC__FileEncoder *encoder);
+
+/** Get the maximum LPC order setting.
+ * This is inherited from FLAC__SeekableStreamEncoder; see
+ * FLAC__seekable_stream_encoder_get_max_lpc_order().
+ *
+ * \param encoder An encoder instance to query.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * See FLAC__file_encoder_set_max_lpc_order().
+ */
+unsigned FLAC__file_encoder_get_max_lpc_order(const FLAC__FileEncoder *encoder);
+
+/** Get the quantized linear predictor coefficient precision setting.
+ * This is inherited from FLAC__SeekableStreamEncoder; see
+ * FLAC__seekable_stream_encoder_get_qlp_coeff_precision().
+ *
+ * \param encoder An encoder instance to query.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * See FLAC__file_encoder_set_qlp_coeff_precision().
+ */
+unsigned FLAC__file_encoder_get_qlp_coeff_precision(const FLAC__FileEncoder *encoder);
+
+/** Get the qlp coefficient precision search flag.
+ * This is inherited from FLAC__SeekableStreamEncoder; see
+ * FLAC__seekable_stream_encoder_get_do_qlp_coeff_prec_search().
+ *
+ * \param encoder An encoder instance to query.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * See FLAC__file_encoder_set_do_qlp_coeff_prec_search().
+ */
+FLAC__bool FLAC__file_encoder_get_do_qlp_coeff_prec_search(const FLAC__FileEncoder *encoder);
+
+/** Get the "escape coding" flag.
+ * This is inherited from FLAC__SeekableStreamEncoder; see
+ * FLAC__seekable_stream_encoder_get_do_escape_coding().
+ *
+ * \param encoder An encoder instance to query.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * See FLAC__file_encoder_set_do_escape_coding().
+ */
+FLAC__bool FLAC__file_encoder_get_do_escape_coding(const FLAC__FileEncoder *encoder);
+
+/** Get the exhaustive model search flag.
+ * This is inherited from FLAC__SeekableStreamEncoder; see
+ * FLAC__seekable_stream_encoder_get_do_exhaustive_model_search().
+ *
+ * \param encoder An encoder instance to query.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * See FLAC__file_encoder_set_do_exhaustive_model_search().
+ */
+FLAC__bool FLAC__file_encoder_get_do_exhaustive_model_search(const FLAC__FileEncoder *encoder);
+
+/** Get the minimum residual partition order setting.
+ * This is inherited from FLAC__SeekableStreamEncoder; see
+ * FLAC__seekable_stream_encoder_get_min_residual_partition_order().
+ *
+ * \param encoder An encoder instance to query.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * See FLAC__file_encoder_set_min_residual_partition_order().
+ */
+unsigned FLAC__file_encoder_get_min_residual_partition_order(const FLAC__FileEncoder *encoder);
+
+/** Get maximum residual partition order setting.
+ * This is inherited from FLAC__SeekableStreamEncoder; see
+ * FLAC__seekable_stream_encoder_get_max_residual_partition_order().
+ *
+ * \param encoder An encoder instance to query.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * See FLAC__file_encoder_set_max_residual_partition_order().
+ */
+unsigned FLAC__file_encoder_get_max_residual_partition_order(const FLAC__FileEncoder *encoder);
+
+/** Get the Rice parameter search distance setting.
+ * This is inherited from FLAC__SeekableStreamEncoder; see
+ * FLAC__seekable_stream_encoder_get_rice_parameter_search_dist().
+ *
+ * \param encoder An encoder instance to query.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * See FLAC__file_encoder_set_rice_parameter_search_dist().
+ */
+unsigned FLAC__file_encoder_get_rice_parameter_search_dist(const FLAC__FileEncoder *encoder);
+
+/** Initialize the encoder instance.
+ * Should be called after FLAC__file_encoder_new() and
+ * FLAC__file_encoder_set_*() but before FLAC__file_encoder_process()
+ * or FLAC__file_encoder_process_interleaved(). Will set and return
+ * the encoder state, which will be FLAC__FILE_ENCODER_OK if
+ * initialization succeeded.
+ *
+ * \param encoder An uninitialized encoder instance.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__FileEncoderState
+ * \c FLAC__FILE_ENCODER_OK if initialization was successful; see
+ * FLAC__FileEncoderState for the meanings of other return values.
+ */
+FLAC__FileEncoderState FLAC__file_encoder_init(FLAC__FileEncoder *encoder);
+
+/** Finish the encoding process.
+ * Flushes the encoding buffer, releases resources, resets the encoder
+ * settings to their defaults, and returns the encoder state to
+ * FLAC__FILE_ENCODER_UNINITIALIZED.
+ *
+ * In the event of a prematurely-terminated encode, it is not strictly
+ * necessary to call this immediately before FLAC__file_encoder_delete()
+ * but it is good practice to match every FLAC__file_encoder_init()
+ * with a FLAC__file_encoder_finish().
+ *
+ * \param encoder An uninitialized encoder instance.
+ * \assert
+ * \code encoder != NULL \endcode
+ */
+void FLAC__file_encoder_finish(FLAC__FileEncoder *encoder);
+
+/** Submit data for encoding.
+ * This is inherited from FLAC__SeekableStreamEncoder; see
+ * FLAC__seekable_stream_encoder_process().
+ *
+ * \param encoder An initialized encoder instance in the OK state.
+ * \param buffer An array of pointers to each channel's signal.
+ * \param samples The number of samples in one channel.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \code FLAC__file_encoder_get_state(encoder) == FLAC__FILE_ENCODER_OK \endcode
+ * \retval FLAC__bool
+ * \c true if successful, else \c false; in this case, check the
+ * encoder state with FLAC__file_encoder_get_state() to see what
+ * went wrong.
+ */
+FLAC__bool FLAC__file_encoder_process(FLAC__FileEncoder *encoder, const FLAC__int32 * const buffer[], unsigned samples);
+
+/** Submit data for encoding.
+ * This is inherited from FLAC__SeekableStreamEncoder; see
+ * FLAC__seekable_stream_encoder_process_interleaved().
+ *
+ * \param encoder An initialized encoder instance in the OK state.
+ * \param buffer An array of channel-interleaved data (see above).
+ * \param samples The number of samples in one channel, the same as for
+ * FLAC__file_encoder_process(). For example, if
+ * encoding two channels, \c 1000 \a samples corresponds
+ * to a \a buffer of 2000 values.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \code FLAC__file_encoder_get_state(encoder) == FLAC__FILE_ENCODER_OK \endcode
+ * \retval FLAC__bool
+ * \c true if successful, else \c false; in this case, check the
+ * encoder state with FLAC__file_encoder_get_state() to see what
+ * went wrong.
+ */
+FLAC__bool FLAC__file_encoder_process_interleaved(FLAC__FileEncoder *encoder, const FLAC__int32 buffer[], unsigned samples);
+
+/* \} */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
--- /dev/null
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2002 Josh Coalson
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifndef FLAC__SEEKABLE_STREAM_ENCODER_H
+#define FLAC__SEEKABLE_STREAM_ENCODER_H
+
+#include "stream_encoder.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+/** \file include/FLAC/seekable_stream_encoder.h
+ *
+ * \brief
+ * This module contains the functions which implement the seekable stream
+ * encoder.
+ *
+ * See the detailed documentation in the
+ * \link flac_seekable_stream_encoder seekable stream encoder \endlink module.
+ */
+
+/** \defgroup flac_seekable_stream_encoder FLAC/seekable_stream_encoder.h: seekable stream encoder interface
+ * \ingroup flac_encoder
+ *
+ * \brief
+ * This module contains the functions which implement the seekable stream
+ * encoder.
+ *
+ * XXX (import)
+ *
+ * The seekable stream encoder is a wrapper around the
+ * \link flac_stream_encoder stream encoder \endlink which (XXXimport)
+ *
+ * Make sure to read the detailed description of the
+ * \link flac_stream_encoder stream encoder module \endlink since the
+ * seekable stream encoder inherits much of its behavior.
+ *
+ * \note
+ * The "set" functions may only be called when the encoder is in the
+ * state FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED, i.e. after
+ * FLAC__seekable_stream_encoder_new() or FLAC__seekable_stream_encoder_finish(), but
+ * before FLAC__seekable_stream_encoder_init(). If this is the case they will
+ * return \c true, otherwise \c false.
+ *
+ * \note
+ * FLAC__seekable_stream_encoder_finish() resets all settings to the constructor
+ * defaults, including the callbacks.
+ *
+ * \{
+ */
+
+
+/** State values for a FLAC__SeekableStreamEncoder
+ *
+ * The encoder's state can be obtained by calling FLAC__seekable_stream_encoder_get_state().
+ */
+typedef enum {
+
+ FLAC__SEEKABLE_STREAM_ENCODER_OK = 0,
+ /**< The encoder is in the normal OK state. */
+
+ FLAC__SEEKABLE_STREAM_ENCODER_STREAM_ENCODER_ERROR,
+ /**< An error occurred in the underlying stream encoder;
+ * check FLAC__seekable_stream_encoder_get_stream_encoder_state().
+ */
+
+ FLAC__SEEKABLE_STREAM_ENCODER_MEMORY_ALLOCATION_ERROR,
+ /**< Memory allocation failed. */
+
+ FLAC__SEEKABLE_STREAM_ENCODER_READ_ERROR,
+ /**< The read callback returned an error. */
+
+ FLAC__SEEKABLE_STREAM_ENCODER_SEEK_ERROR,
+ /**< The seek callback returned an error. */
+
+ FLAC__SEEKABLE_STREAM_ENCODER_ALREADY_INITIALIZED,
+ /**< FLAC__seekable_stream_encoder_init() was called when the encoder was
+ * already initialized, usually because
+ * FLAC__seekable_stream_encoder_finish() was not called.
+ */
+
+ FLAC__SEEKABLE_STREAM_ENCODER_INVALID_CALLBACK,
+ /**< FLAC__seekable_stream_encoder_init() was called without all
+ * callbacks being set.
+ */
+
+ FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED
+ /**< The encoder is in the uninitialized state. */
+
+} FLAC__SeekableStreamEncoderState;
+
+/** Maps a FLAC__SeekableStreamEncoderState to a C string.
+ *
+ * Using a FLAC__SeekableStreamEncoderState as the index to this array
+ * will give the string equivalent. The contents should not be modified.
+ */
+/* @@@@ double-check mapping */
+extern const char * const FLAC__SeekableStreamEncoderStateString[];
+
+
+/***********************************************************************
+ *
+ * class FLAC__SeekableStreamEncoder
+ *
+ ***********************************************************************/
+
+struct FLAC__SeekableStreamEncoderProtected;
+struct FLAC__SeekableStreamEncoderPrivate;
+/** The opaque structure definition for the seekable stream encoder type.
+ * See the \link flac_seekable_stream_encoder seekable stream encoder module \endlink
+ * for a detailed description.
+ */
+typedef struct {
+ struct FLAC__SeekableStreamEncoderProtected *protected_; /* avoid the C++ keyword 'protected' */
+ struct FLAC__SeekableStreamEncoderPrivate *private_; /* avoid the C++ keyword 'private' */
+} FLAC__SeekableStreamEncoder;
+
+
+/***********************************************************************
+ *
+ * Class constructor/destructor
+ *
+ ***********************************************************************/
+
+/** Create a new seekable stream encoder instance. The instance is created with
+ * default settings; see the individual FLAC__seekable_stream_encoder_set_*()
+ * functions for each setting's default.
+ *
+ * \retval FLAC__SeekableStreamEncoder*
+ * \c NULL if there was an error allocating memory, else the new instance.
+ */
+FLAC__SeekableStreamEncoder *FLAC__seekable_stream_encoder_new();
+
+/** Free an encoder instance. Deletes the object pointed to by \a encoder.
+ *
+ * \param encoder A pointer to an existing encoder.
+ * \assert
+ * \code encoder != NULL \endcode
+ */
+void FLAC__seekable_stream_encoder_delete(FLAC__SeekableStreamEncoder *encoder);
+
+/***********************************************************************
+ *
+ * Public class method prototypes
+ *
+ ***********************************************************************/
+
+/** This is inherited from FLAC__StreamEncoder; see
+ * FLAC__stream_encoder_set_streamable_subset().
+ *
+ * \default \c true
+ * \param encoder An encoder instance to set.
+ * \param value See above.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * \c false if the encoder is already initialized, else \c true.
+ */
+FLAC__bool FLAC__seekable_stream_encoder_set_streamable_subset(FLAC__SeekableStreamEncoder *encoder, FLAC__bool value);
+
+/** This is inherited from FLAC__StreamEncoder; see
+ * FLAC__stream_encoder_set_do_mid_side_stereo().
+ *
+ * \default \c false
+ * \param encoder An encoder instance to set.
+ * \param value See above.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * \c false if the encoder is already initialized, else \c true.
+ */
+FLAC__bool FLAC__seekable_stream_encoder_set_do_mid_side_stereo(FLAC__SeekableStreamEncoder *encoder, FLAC__bool value);
+
+/** This is inherited from FLAC__StreamEncoder; see
+ * FLAC__stream_encoder_set_loose_mid_side_stereo().
+ *
+ * \default \c false
+ * \param encoder An encoder instance to set.
+ * \param value See above.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * \c false if the encoder is already initialized, else \c true.
+ */
+FLAC__bool FLAC__seekable_stream_encoder_set_loose_mid_side_stereo(FLAC__SeekableStreamEncoder *encoder, FLAC__bool value);
+
+/** This is inherited from FLAC__StreamEncoder; see
+ * FLAC__stream_encoder_set_channels().
+ *
+ * \default \c 2
+ * \param encoder An encoder instance to set.
+ * \param value See above.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * \c false if the encoder is already initialized, else \c true.
+ */
+FLAC__bool FLAC__seekable_stream_encoder_set_channels(FLAC__SeekableStreamEncoder *encoder, unsigned value);
+
+/** This is inherited from FLAC__StreamEncoder; see
+ * FLAC__stream_encoder_set_bits_per_sample().
+ *
+ * \warning
+ * Do not feed the encoder data that is wider than the value you
+ * set here or you will generate an invalid stream.
+ *
+ * \default \c 16
+ * \param encoder An encoder instance to set.
+ * \param value See above.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * \c false if the encoder is already initialized, else \c true.
+ */
+FLAC__bool FLAC__seekable_stream_encoder_set_bits_per_sample(FLAC__SeekableStreamEncoder *encoder, unsigned value);
+
+/** This is inherited from FLAC__StreamEncoder; see
+ * FLAC__stream_encoder_set_sample_rate().
+ *
+ * \default \c 44100
+ * \param encoder An encoder instance to set.
+ * \param value See above.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * \c false if the encoder is already initialized, else \c true.
+ */
+FLAC__bool FLAC__seekable_stream_encoder_set_sample_rate(FLAC__SeekableStreamEncoder *encoder, unsigned value);
+
+/** This is inherited from FLAC__StreamEncoder; see
+ * FLAC__stream_encoder_set_blocksize().
+ *
+ * \default \c 1152
+ * \param encoder An encoder instance to set.
+ * \param value See above.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * \c false if the encoder is already initialized, else \c true.
+ */
+FLAC__bool FLAC__seekable_stream_encoder_set_blocksize(FLAC__SeekableStreamEncoder *encoder, unsigned value);
+
+/** This is inherited from FLAC__StreamEncoder; see
+ * FLAC__stream_encoder_set_max_lpc_order().
+ *
+ * \default \c 0
+ * \param encoder An encoder instance to set.
+ * \param value See above.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * \c false if the encoder is already initialized, else \c true.
+ */
+FLAC__bool FLAC__seekable_stream_encoder_set_max_lpc_order(FLAC__SeekableStreamEncoder *encoder, unsigned value);
+
+/** This is inherited from FLAC__StreamEncoder; see
+ * FLAC__stream_encoder_set_qlp_coeff_precision().
+ *
+ * \note
+ * In the current implementation, qlp_coeff_precision + bits_per_sample must
+ * be less than 32.
+ *
+ * \default \c 0
+ * \param encoder An encoder instance to set.
+ * \param value See above.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * \c false if the encoder is already initialized, else \c true.
+ */
+FLAC__bool FLAC__seekable_stream_encoder_set_qlp_coeff_precision(FLAC__SeekableStreamEncoder *encoder, unsigned value);
+
+/** This is inherited from FLAC__StreamEncoder; see
+ * FLAC__stream_encoder_set_do_qlp_coeff_prec_search().
+ *
+ * \default \c false
+ * \param encoder An encoder instance to set.
+ * \param value See above.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * \c false if the encoder is already initialized, else \c true.
+ */
+FLAC__bool FLAC__seekable_stream_encoder_set_do_qlp_coeff_prec_search(FLAC__SeekableStreamEncoder *encoder, FLAC__bool value);
+
+/** This is inherited from FLAC__StreamEncoder; see
+ * FLAC__stream_encoder_set_do_escape_coding().
+ *
+ * \default \c false
+ * \param encoder An encoder instance to set.
+ * \param value See above.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * \c false if the encoder is already initialized, else \c true.
+ */
+FLAC__bool FLAC__seekable_stream_encoder_set_do_escape_coding(FLAC__SeekableStreamEncoder *encoder, FLAC__bool value);
+
+/** This is inherited from FLAC__StreamEncoder; see
+ * FLAC__stream_encoder_set_do_exhaustive_model_search().
+ *
+ * \default \c false
+ * \param encoder An encoder instance to set.
+ * \param value See above.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * \c false if the encoder is already initialized, else \c true.
+ */
+FLAC__bool FLAC__seekable_stream_encoder_set_do_exhaustive_model_search(FLAC__SeekableStreamEncoder *encoder, FLAC__bool value);
+
+/** This is inherited from FLAC__StreamEncoder; see
+ * FLAC__stream_encoder_set_min_residual_partition_order().
+ *
+ * \default \c 0
+ * \param encoder An encoder instance to set.
+ * \param value See above.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * \c false if the encoder is already initialized, else \c true.
+ */
+FLAC__bool FLAC__seekable_stream_encoder_set_min_residual_partition_order(FLAC__SeekableStreamEncoder *encoder, unsigned value);
+
+/** This is inherited from FLAC__StreamEncoder; see
+ * FLAC__stream_encoder_set_max_residual_partition_order().
+ *
+ * \default \c 0
+ * \param encoder An encoder instance to set.
+ * \param value See above.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * \c false if the encoder is already initialized, else \c true.
+ */
+FLAC__bool FLAC__seekable_stream_encoder_set_max_residual_partition_order(FLAC__SeekableStreamEncoder *encoder, unsigned value);
+
+/** This is inherited from FLAC__StreamEncoder; see
+ * FLAC__stream_encoder_set_rice_parameter_search_dist().
+ *
+ * \default \c 0
+ * \param encoder An encoder instance to set.
+ * \param value See above.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * \c false if the encoder is already initialized, else \c true.
+ */
+FLAC__bool FLAC__seekable_stream_encoder_set_rice_parameter_search_dist(FLAC__SeekableStreamEncoder *encoder, unsigned value);
+
+/** This is inherited from FLAC__StreamEncoder; see
+ * FLAC__stream_encoder_set_total_samples_estimate().
+ *
+ * \default \c 0
+ * \param encoder An encoder instance to set.
+ * \param value See above.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * \c false if the encoder is already initialized, else \c true.
+ */
+FLAC__bool FLAC__seekable_stream_encoder_set_total_samples_estimate(FLAC__SeekableStreamEncoder *encoder, FLAC__uint64 value);
+
+/** This is inherited from FLAC__StreamEncoder; see
+ * FLAC__stream_encoder_set_metadata().
+ *
+ * \default \c NULL, 0
+ * \param encoder An encoder instance to set.
+ * \param metadata See above.
+ * \param num_blocks See above.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * \c false if the encoder is already initialized, else \c true.
+ */
+FLAC__bool FLAC__seekable_stream_encoder_set_metadata(FLAC__SeekableStreamEncoder *encoder, FLAC__FileMetadata **metadata, unsigned num_blocks);
+
+/** Set the seek callback.
+ * The supplied function will be called when the encoder needs to seek
+ * the output stream. The encoder will pass the absolute byte offset
+ * to seek to, 0 meaning the beginning of the stream.
+ *
+ * \note
+ * The callback is mandatory and must be set before initialization.
+ *
+ * \default \c NULL
+ * \param encoder An encoder instance to set.
+ * \param value See above.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \code value != NULL \endcode
+ * \retval FLAC__bool
+ * \c false if the encoder is already initialized, else \c true.
+ */
+FLAC__bool FLAC__seekable_stream_encoder_set_seek_callback(FLAC__SeekableStreamEncoder *encoder, FLAC__SeekableStreamEncoderSeekStatus (*value)(const FLAC__SeekableStreamEncoder *encoder, FLAC__uint64 absolute_byte_offset, void *client_data));
+
+/** Set the write callback.
+ * This is inherited from FLAC__StreamEncoder; see
+ * FLAC__stream_encoder_set_write_callback().
+ *
+ * \note
+ * The callback is mandatory and must be set before initialization.
+ *
+ * \default \c NULL
+ * \param encoder An encoder instance to set.
+ * \param value See above.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \code value != NULL \endcode
+ * \retval FLAC__bool
+ * \c false if the encoder is already initialized, else \c true.
+ */
+FLAC__bool FLAC__stream_encoder_set_write_callback(FLAC__StreamEncoder *encoder, FLAC__StreamEncoderWriteStatus (*value)(const FLAC__StreamEncoder *encoder, const FLAC__byte buffer[], unsigned bytes, unsigned samples, unsigned current_frame, void *client_data));
+
+/** Set the client data to be passed back to callbacks.
+ * This value will be supplied to callbacks in their \a client_data
+ * argument.
+ *
+ * \default \c NULL
+ * \param encoder An encoder instance to set.
+ * \param value See above.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * \c false if the encoder is already initialized, else \c true.
+ */
+FLAC__bool FLAC__stream_encoder_set_client_data(FLAC__StreamEncoder *encoder, void *value);
+
+/** Get the current encoder state.
+ *
+ * \param encoder An encoder instance to query.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__SeekableStreamEncoderState
+ * The current encoder state.
+ */
+FLAC__SeekableStreamEncoderState FLAC__seekable_stream_encoder_get_state(const FLAC__SeekableStreamEncoder *encoder);
+
+/** Get the state of the underlying stream encoder.
+ * Useful when the seekable stream encoder state is
+ * \c FLAC__SEEKABLE_STREAM_ENCODER_STREAM_ENCODER_ERROR.
+ *
+ * \param encoder An encoder instance to query.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__StreamEncoderState
+ * The stream encoder state.
+ */
+FLAC__StreamEncoderState FLAC__seekable_stream_encoder_get_stream_encoder_state(const FLAC__SeekableStreamEncoder *encoder);
+
+/** Get the "streamable subset" flag.
+ * This is inherited from FLAC__StreamEncoder; see
+ * FLAC__stream_encoder_get_streamable_subset().
+ *
+ * \param encoder An encoder instance to query.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * See FLAC__seekable_stream_encoder_set_streamable_subset().
+ */
+FLAC__bool FLAC__seekable_stream_encoder_get_streamable_subset(const FLAC__SeekableStreamEncoder *encoder);
+
+/** Get the "mid/side stereo coding" flag.
+ * This is inherited from FLAC__StreamEncoder; see
+ * FLAC__stream_encoder_get_do_mid_side_stereo().
+ *
+ * \param encoder An encoder instance to query.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * See FLAC__seekable_stream_encoder_get_do_mid_side_stereo().
+ */
+FLAC__bool FLAC__seekable_stream_encoder_get_do_mid_side_stereo(const FLAC__SeekableStreamEncoder *encoder);
+
+/** Get the "adaptive mid/side switching" flag.
+ * This is inherited from FLAC__StreamEncoder; see
+ * FLAC__stream_encoder_get_loose_mid_side_stereo().
+ *
+ * \param encoder An encoder instance to query.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * See FLAC__seekable_stream_encoder_set_loose_mid_side_stereo().
+ */
+FLAC__bool FLAC__seekable_stream_encoder_get_loose_mid_side_stereo(const FLAC__SeekableStreamEncoder *encoder);
+
+/** Get the number of input channels being processed.
+ * This is inherited from FLAC__StreamEncoder; see
+ * FLAC__stream_encoder_get_channels().
+ *
+ * \param encoder An encoder instance to query.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * See FLAC__seekable_stream_encoder_set_channels().
+ */
+unsigned FLAC__seekable_stream_encoder_get_channels(const FLAC__SeekableStreamEncoder *encoder);
+
+/** Get the input sample resolution setting.
+ * This is inherited from FLAC__StreamEncoder; see
+ * FLAC__stream_encoder_get_bits_per_sample().
+ *
+ * \param encoder An encoder instance to query.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * See FLAC__seekable_stream_encoder_set_bits_per_sample().
+ */
+unsigned FLAC__seekable_stream_encoder_get_bits_per_sample(const FLAC__SeekableStreamEncoder *encoder);
+
+/** Get the input sample rate setting.
+ * This is inherited from FLAC__StreamEncoder; see
+ * FLAC__stream_encoder_get_sample_rate().
+ *
+ * \param encoder An encoder instance to query.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * See FLAC__seekable_stream_encoder_set_sample_rate().
+ */
+unsigned FLAC__seekable_stream_encoder_get_sample_rate(const FLAC__SeekableStreamEncoder *encoder);
+
+/** Get the blocksize setting.
+ * This is inherited from FLAC__StreamEncoder; see
+ * FLAC__stream_encoder_get_blocksize().
+ *
+ * \param encoder An encoder instance to query.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * See FLAC__seekable_stream_encoder_set_blocksize().
+ */
+unsigned FLAC__seekable_stream_encoder_get_blocksize(const FLAC__SeekableStreamEncoder *encoder);
+
+/** Get the maximum LPC order setting.
+ * This is inherited from FLAC__StreamEncoder; see
+ * FLAC__stream_encoder_get_max_lpc_order().
+ *
+ * \param encoder An encoder instance to query.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * See FLAC__seekable_stream_encoder_set_max_lpc_order().
+ */
+unsigned FLAC__seekable_stream_encoder_get_max_lpc_order(const FLAC__SeekableStreamEncoder *encoder);
+
+/** Get the quantized linear predictor coefficient precision setting.
+ * This is inherited from FLAC__StreamEncoder; see
+ * FLAC__stream_encoder_get_qlp_coeff_precision().
+ *
+ * \param encoder An encoder instance to query.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * See FLAC__seekable_stream_encoder_set_qlp_coeff_precision().
+ */
+unsigned FLAC__seekable_stream_encoder_get_qlp_coeff_precision(const FLAC__SeekableStreamEncoder *encoder);
+
+/** Get the qlp coefficient precision search flag.
+ * This is inherited from FLAC__StreamEncoder; see
+ * FLAC__stream_encoder_get_do_qlp_coeff_prec_search().
+ *
+ * \param encoder An encoder instance to query.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * See FLAC__seekable_stream_encoder_set_do_qlp_coeff_prec_search().
+ */
+FLAC__bool FLAC__seekable_stream_encoder_get_do_qlp_coeff_prec_search(const FLAC__SeekableStreamEncoder *encoder);
+
+/** Get the "escape coding" flag.
+ * This is inherited from FLAC__StreamEncoder; see
+ * FLAC__stream_encoder_get_do_escape_coding().
+ *
+ * \param encoder An encoder instance to query.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * See FLAC__seekable_stream_encoder_set_do_escape_coding().
+ */
+FLAC__bool FLAC__seekable_stream_encoder_get_do_escape_coding(const FLAC__SeekableStreamEncoder *encoder);
+
+/** Get the exhaustive model search flag.
+ * This is inherited from FLAC__StreamEncoder; see
+ * FLAC__stream_encoder_get_do_exhaustive_model_search().
+ *
+ * \param encoder An encoder instance to query.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * See FLAC__seekable_stream_encoder_set_do_exhaustive_model_search().
+ */
+FLAC__bool FLAC__seekable_stream_encoder_get_do_exhaustive_model_search(const FLAC__SeekableStreamEncoder *encoder);
+
+/** Get the minimum residual partition order setting.
+ * This is inherited from FLAC__StreamEncoder; see
+ * FLAC__stream_encoder_get_min_residual_partition_order().
+ *
+ * \param encoder An encoder instance to query.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * See FLAC__seekable_stream_encoder_set_min_residual_partition_order().
+ */
+unsigned FLAC__seekable_stream_encoder_get_min_residual_partition_order(const FLAC__SeekableStreamEncoder *encoder);
+
+/** Get maximum residual partition order setting.
+ * This is inherited from FLAC__StreamEncoder; see
+ * FLAC__stream_encoder_get_max_residual_partition_order().
+ *
+ * \param encoder An encoder instance to query.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * See FLAC__seekable_stream_encoder_set_max_residual_partition_order().
+ */
+unsigned FLAC__seekable_stream_encoder_get_max_residual_partition_order(const FLAC__SeekableStreamEncoder *encoder);
+
+/** Get the Rice parameter search distance setting.
+ * This is inherited from FLAC__StreamEncoder; see
+ * FLAC__stream_encoder_get_rice_parameter_search_dist().
+ *
+ * \param encoder An encoder instance to query.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ * See FLAC__seekable_stream_encoder_set_rice_parameter_search_dist().
+ */
+unsigned FLAC__seekable_stream_encoder_get_rice_parameter_search_dist(const FLAC__SeekableStreamEncoder *encoder);
+
+/** Initialize the encoder instance.
+ * Should be called after FLAC__seekable_stream_encoder_new() and
+ * FLAC__seekable_stream_encoder_set_*() but before FLAC__seekable_stream_encoder_process()
+ * or FLAC__seekable_stream_encoder_process_interleaved(). Will set and return
+ * the encoder state, which will be FLAC__SEEKABLE_STREAM_ENCODER_OK if
+ * initialization succeeded.
+ *
+ * The call to FLAC__seekable_stream_encoder_init() currently will also immediately
+ * call the write callback with the \c fLaC signature and all the encoded
+ * metadata.
+ *
+ * \param encoder An uninitialized encoder instance.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \retval FLAC__SeekableStreamEncoderState
+ * \c FLAC__SEEKABLE_STREAM_ENCODER_OK if initialization was successful; see
+ * FLAC__SeekableStreamEncoderState for the meanings of other return values.
+ */
+FLAC__SeekableStreamEncoderState FLAC__seekable_stream_encoder_init(FLAC__SeekableStreamEncoder *encoder);
+
+/** Finish the encoding process.
+ * Flushes the encoding buffer, releases resources, resets the encoder
+ * settings to their defaults, and returns the encoder state to
+ * FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED.
+ *
+ * In the event of a prematurely-terminated encode, it is not strictly
+ * necessary to call this immediately before FLAC__seekable_stream_encoder_delete()
+ * but it is good practice to match every FLAC__seekable_stream_encoder_init()
+ * with a FLAC__seekable_stream_encoder_finish().
+ *
+ * \param encoder An uninitialized encoder instance.
+ * \assert
+ * \code encoder != NULL \endcode
+ */
+void FLAC__seekable_stream_encoder_finish(FLAC__SeekableStreamEncoder *encoder);
+
+/** Submit data for encoding.
+ * This is inherited from FLAC__StreamEncoder; see
+ * FLAC__stream_encoder_process().
+ *
+ * \param encoder An initialized encoder instance in the OK state.
+ * \param buffer An array of pointers to each channel's signal.
+ * \param samples The number of samples in one channel.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \code FLAC__seekable_stream_encoder_get_state(encoder) == FLAC__SEEKABLE_STREAM_ENCODER_OK \endcode
+ * \retval FLAC__bool
+ * \c true if successful, else \c false; in this case, check the
+ * encoder state with FLAC__seekable_stream_encoder_get_state() to see what
+ * went wrong.
+ */
+FLAC__bool FLAC__seekable_stream_encoder_process(FLAC__SeekableStreamEncoder *encoder, const FLAC__int32 * const buffer[], unsigned samples);
+
+/** Submit data for encoding.
+ * This is inherited from FLAC__StreamEncoder; see
+ * FLAC__stream_encoder_process_interleaved().
+ *
+ * \param encoder An initialized encoder instance in the OK state.
+ * \param buffer An array of channel-interleaved data (see above).
+ * \param samples The number of samples in one channel, the same as for
+ * FLAC__seekable_stream_encoder_process(). For example, if
+ * encoding two channels, \c 1000 \a samples corresponds
+ * to a \a buffer of 2000 values.
+ * \assert
+ * \code encoder != NULL \endcode
+ * \code FLAC__seekable_stream_encoder_get_state(encoder) == FLAC__SEEKABLE_STREAM_ENCODER_OK \endcode
+ * \retval FLAC__bool
+ * \c true if successful, else \c false; in this case, check the
+ * encoder state with FLAC__seekable_stream_encoder_get_state() to see what
+ * went wrong.
+ */
+FLAC__bool FLAC__seekable_stream_encoder_process_interleaved(FLAC__SeekableStreamEncoder *encoder, const FLAC__int32 buffer[], unsigned samples);
+
+/* \} */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
* \ingroup flac
*
* \brief
- * This module describes the single encoder layer provided by libFLAC.
+ * This module describes the two encoder layers provided by libFLAC.
*
- * Currently there is only one level of encoder implementation which is at
- * the stream level. There is currently no file encoder because seeking
- * within a file while encoding seemed like too obscure a feature.
+ * For encoding FLAC streams, libFLAC provides two layers of access. The
+ * lowest layer is stream-level encoding, and the highest is file-level
+ * encoding. The interfaces are described in the \link flac_stream_encoder
+ * stream encoder \endlink and \link flac_file_encoder file encoder \endlink
+ * modules respectively. Typically you will choose the highest layer that
+ * your output source will support.
+ *
+ * The stream encoder relies on callbacks for writing the data and
+ * metadata. The file encoder provides these callbacks internally and you
+ * need only supply the filename.
*/
/** \defgroup flac_stream_encoder FLAC/stream_encoder.h: stream encoder interface
* audio frames and the data is not guaranteed to be aligned on frame or
* metadata block boundaries.
*
+ * The only duty of the callback is to write out the \a bytes worth of data
+ * in \a buffer to the current position in the output stream. The arguments
+ * \a samples and \a current_frame are purely informational. If \a samples
+ * is greater than \c 0, then \a current_frame will hold the current frame
+ * number that is being written; otherwise, the write callback is being called
+ * to write metadata.
+ *
* \note
* The callback is mandatory and must be set before initialization.
*
* sample-aligned, i.e. the first value should be channel0_sample0
* and the last value channelN_sampleM.
*
- *
* \param encoder An initialized encoder instance in the OK state.
* \param buffer An array of channel-interleaved data (see above).
* \param samples The number of samples in one channel, the same as for
cpu.c \
crc.c \
file_decoder.c \
+ file_encoder.c \
fixed.c \
format.c \
lpc.c \
metadata_iterators.c \
metadata_object.c \
seekable_stream_decoder.c \
+ seekable_stream_encoder.c \
stream_decoder.c \
stream_encoder.c \
stream_encoder_framing.c
cpu.o \
crc.o \
file_decoder.o \
+ file_encoder.o \
fixed.o \
format.o \
lpc.o \
metadata_iterators.o \
metadata_object.o \
seekable_stream_decoder.o \
+ seekable_stream_encoder.o \
stream_decoder.o \
stream_encoder.o \
stream_encoder_framing.o
cpu.c \\r
crc.c \\r
file_decoder.c \\r
+ file_encoder.c \\r
fixed.c \\r
format.c \\r
lpc.c \\r
metadata_iterators.c \\r
metadata_object.c \\r
seekable_stream_decoder.c \\r
+ seekable_stream_encoder.c \\r
stream_decoder.c \\r
stream_encoder.c \\r
stream_encoder_framing.c\r
--- /dev/null
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2002 Josh Coalson
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#include <stdio.h>
+#include <stdlib.h> /* for malloc() */
+#include <string.h> /* for memcpy() */
+#include "FLAC/assert.h"
+#include "protected/file_encoder.h"
+#include "protected/seekable_stream_encoder.h"
+
+/***********************************************************************
+ *
+ * Private class method prototypes
+ *
+ ***********************************************************************/
+
+static void set_defaults_(FLAC__FileEncoder *encoder);
+static FLAC__StreamEncoderWriteStatus file_encoder_write_callback_(const FLAC__StreamEncoder *encoder, const FLAC__byte buffer[], unsigned bytes, unsigned samples, unsigned current_frame, void *client_data);
+static void file_encoder_metadata_callback_(const FLAC__StreamEncoder *encoder, const FLAC__StreamMetadata *metadata, void *client_data);
+
+/***********************************************************************
+ *
+ * Private class data
+ *
+ ***********************************************************************/
+
+typedef struct FLAC__FileEncoderPrivate {
+ FILE *file;
+ char *filename;
+ FLAC__SeekableStreamEncoder *seekable_stream_encoder;
+} FLAC__FileEncoderPrivate;
+
+/***********************************************************************
+ *
+ * Public static class data
+ *
+ ***********************************************************************/
+
+const char * const FLAC__FileEncoderStateString[] = {
+ "FLAC__FILE_ENCODER_OK",
+ "FLAC__FILE_ENCODER_NO_FILENAME",
+ "FLAC__FILE_ENCODER_SEEKABLE_STREAM_ENCODER_ERROR",
+ "FLAC__FILE_ENCODER_FATAL_ERROR_WHILE_WRITING",
+ "FLAC__FILE_ENCODER_ERROR_OPENING_FILE",
+ "FLAC__FILE_ENCODER_MEMORY_ALLOCATION_ERROR",
+ "FLAC__FILE_ENCODER_ALREADY_INITIALIZED",
+ "FLAC__FILE_ENCODER_UNINITIALIZED"
+};
+
+
+/***********************************************************************
+ *
+ * Class constructor/destructor
+ *
+ ***********************************************************************/
+FLAC__FileEncoder *FLAC__file_encoder_new()
+{
+ FLAC__FileEncoder *encoder;
+
+ FLAC__ASSERT(sizeof(int) >= 4); /* we want to die right away if this is not true */
+
+ encoder = (FLAC__FileEncoder*)malloc(sizeof(FLAC__FileEncoder));
+ if(encoder == 0) {
+ return 0;
+ }
+ encoder->protected_ = (FLAC__FileEncoderProtected*)malloc(sizeof(FLAC__FileEncoderProtected));
+ if(encoder->protected_ == 0) {
+ free(encoder);
+ return 0;
+ }
+ encoder->private_ = (FLAC__FileEncoderPrivate*)malloc(sizeof(FLAC__FileEncoderPrivate));
+ if(encoder->private_ == 0) {
+ free(encoder->protected_);
+ free(encoder);
+ return 0;
+ }
+
+ encoder->private_->seekable_stream_encoder = FLAC__seekable_stream_encoder_new();
+
+ if(0 == encoder->private_->seekable_stream_encoder) {
+ free(encoder->private_);
+ free(encoder->protected_);
+ free(encoder);
+ return 0;
+ }
+
+ encoder->private_->file = 0;
+
+ set_defaults_(encoder);
+
+ encoder->protected_->state = FLAC__FILE_ENCODER_UNINITIALIZED;
+
+ return encoder;
+}
+
+void FLAC__file_encoder_delete(FLAC__FileEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->protected_);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->private_->seekable_stream_encoder);
+
+ (void)FLAC__file_encoder_finish(encoder);
+
+ FLAC__seekable_stream_encoder_delete(encoder->private_->seekable_stream_encoder);
+
+ free(encoder->private_);
+ free(encoder->protected_);
+ free(encoder);
+}
+
+/***********************************************************************
+ *
+ * Public class methods
+ *
+ ***********************************************************************/
+
+FLAC__FileEncoderState FLAC__file_encoder_init(FLAC__FileEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+
+ if(encoder->protected_->state != FLAC__FILE_ENCODER_UNINITIALIZED)
+ return encoder->protected_->state = FLAC__FILE_ENCODER_ALREADY_INITIALIZED;
+
+ if(0 == encoder->private_->filename)
+ return encoder->protected_->state = FLAC__FILE_ENCODER_NO_FILENAME;
+
+ encoder->private_->file = fopen(encoder->private_->filename, "wb");
+
+ if(encoder->private_->file == 0)
+ return encoder->protected_->state = FLAC__FILE_ENCODER_ERROR_OPENING_FILE;
+
+ FLAC__seekable_stream_encoder_set_write_callback(encoder->private_->seekable_stream_encoder, write_callback_);
+ FLAC__seekable_stream_encoder_set_metadata_callback(encoder->private_->seekable_stream_encoder, metadata_callback_);
+ FLAC__seekable_stream_encoder_set_client_data(encoder->private_->seekable_stream_encoder, encoder);
+
+ if(FLAC__seekable_seekable_stream_encoder_init(encoder->private_->seekable_stream_encoder) != FLAC__SEEKABLE_STREAM_ENCODER_OK)
+ return encoder->protected_->state = FLAC__FILE_ENCODER_SEEKABLE_STREAM_ENCODER_ERROR;
+
+ return decoder->protected_->state = FLAC__FILE_ENCODER_OK;
+}
+
+void FLAC__file_encoder_finish(FLAC__FileEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+
+ if(encoder->protected_->state == FLAC__FILE_ENCODER_UNINITIALIZED)
+ return;
+
+ FLAC__ASSERT(0 != encoder->private_->seekable_stream_encoder);
+
+ if(0 != encoder->private_->file) {
+ fclose(encoder->private_->file);
+ encoder->private_->file = 0;
+ }
+
+ if(0 != encoder->private_->filename) {
+ free(encoder->private_->filename);
+ encoder->private_->filename = 0;
+ }
+
+ set_defaults_(encoder);
+
+ encoder->protected_->state = FLAC__FILE_ENCODER_UNINITIALIZED;
+
+ return FLAC__seekable_stream_encoder_finish(encoder->private_->seekable_stream_encoder);
+}
+
+FLAC__bool FLAC__file_encoder_set_streamable_subset(FLAC__FileEncoder *encoder, FLAC__bool value)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+ FLAC__ASSERT(0 != encoder->private_->seekable_stream_encoder);
+ if(encoder->protected_->state != FLAC__FILE_ENCODER_UNINITIALIZED)
+ return false;
+ return FLAC__seekable_stream_encoder_set_streamable_subset(encoder->private_->seekable_stream_encoder, value);
+}
+
+FLAC__bool FLAC__file_encoder_set_do_mid_side_stereo(FLAC__FileEncoder *encoder, FLAC__bool value)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+ FLAC__ASSERT(0 != encoder->private_->seekable_stream_encoder);
+ if(encoder->protected_->state != FLAC__FILE_ENCODER_UNINITIALIZED)
+ return false;
+ return FLAC__seekable_stream_encoder_set_do_mid_side_stereo(encoder->private_->seekable_stream_encoder, value);
+}
+
+FLAC__bool FLAC__file_encoder_set_loose_mid_side_stereo(FLAC__FileEncoder *encoder, FLAC__bool value)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+ FLAC__ASSERT(0 != encoder->private_->seekable_stream_encoder);
+ if(encoder->protected_->state != FLAC__FILE_ENCODER_UNINITIALIZED)
+ return false;
+ return FLAC__seekable_stream_encoder_set_loose_mid_side_stereo(encoder->private_->seekable_stream_encoder, value);
+}
+
+FLAC__bool FLAC__file_encoder_set_channels(FLAC__FileEncoder *encoder, unsigned value)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+ FLAC__ASSERT(0 != encoder->private_->seekable_stream_encoder);
+ if(encoder->protected_->state != FLAC__FILE_ENCODER_UNINITIALIZED)
+ return false;
+ return FLAC__seekable_stream_encoder_set_channels(encoder->private_->seekable_stream_encoder, value);
+}
+
+FLAC__bool FLAC__file_encoder_set_bits_per_sample(FLAC__FileEncoder *encoder, unsigned value)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+ FLAC__ASSERT(0 != encoder->private_->seekable_stream_encoder);
+ if(encoder->protected_->state != FLAC__FILE_ENCODER_UNINITIALIZED)
+ return false;
+ return FLAC__seekable_stream_encoder_set_bits_per_sample(encoder->private_->seekable_stream_encoder, value);
+}
+
+FLAC__bool FLAC__file_encoder_set_sample_rate(FLAC__FileEncoder *encoder, unsigned value)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+ FLAC__ASSERT(0 != encoder->private_->seekable_stream_encoder);
+ if(encoder->protected_->state != FLAC__FILE_ENCODER_UNINITIALIZED)
+ return false;
+ return FLAC__seekable_stream_encoder_set_sample_rate(encoder->private_->seekable_stream_encoder, value);
+}
+
+FLAC__bool FLAC__file_encoder_set_blocksize(FLAC__FileEncoder *encoder, unsigned value)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+ FLAC__ASSERT(0 != encoder->private_->seekable_stream_encoder);
+ if(encoder->protected_->state != FLAC__FILE_ENCODER_UNINITIALIZED)
+ return false;
+ return FLAC__seekable_stream_encoder_set_blocksize(encoder->private_->seekable_stream_encoder, value);
+}
+
+FLAC__bool FLAC__file_encoder_set_max_lpc_order(FLAC__FileEncoder *encoder, unsigned value)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+ FLAC__ASSERT(0 != encoder->private_->seekable_stream_encoder);
+ if(encoder->protected_->state != FLAC__FILE_ENCODER_UNINITIALIZED)
+ return false;
+ return FLAC__seekable_stream_encoder_set_max_lpc_order(encoder->private_->seekable_stream_encoder, value);
+}
+
+FLAC__bool FLAC__file_encoder_set_qlp_coeff_precision(FLAC__FileEncoder *encoder, unsigned value)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+ FLAC__ASSERT(0 != encoder->private_->seekable_stream_encoder);
+ if(encoder->protected_->state != FLAC__FILE_ENCODER_UNINITIALIZED)
+ return false;
+ return FLAC__seekable_stream_encoder_set_qlp_coeff_precision(encoder->private_->seekable_stream_encoder, value);
+}
+
+FLAC__bool FLAC__file_encoder_set_do_qlp_coeff_prec_search(FLAC__FileEncoder *encoder, FLAC__bool value)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+ FLAC__ASSERT(0 != encoder->private_->seekable_stream_encoder);
+ if(encoder->protected_->state != FLAC__FILE_ENCODER_UNINITIALIZED)
+ return false;
+ return FLAC__seekable_stream_encoder_set_do_qlp_coeff_prec_search(encoder->private_->seekable_stream_encoder, value);
+}
+
+FLAC__bool FLAC__file_encoder_set_do_escape_coding(FLAC__FileEncoder *encoder, FLAC__bool value)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+ FLAC__ASSERT(0 != encoder->private_->seekable_stream_encoder);
+ if(encoder->protected_->state != FLAC__FILE_ENCODER_UNINITIALIZED)
+ return false;
+ return FLAC__seekable_stream_encoder_set_do_escape_coding(encoder->private_->seekable_stream_encoder, value);
+}
+
+FLAC__bool FLAC__file_encoder_set_do_exhaustive_model_search(FLAC__FileEncoder *encoder, FLAC__bool value)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+ FLAC__ASSERT(0 != encoder->private_->seekable_stream_encoder);
+ if(encoder->protected_->state != FLAC__FILE_ENCODER_UNINITIALIZED)
+ return false;
+ return FLAC__seekable_stream_encoder_set_do_exhaustive_model_search(encoder->private_->seekable_stream_encoder, value);
+}
+
+FLAC__bool FLAC__file_encoder_set_min_residual_partition_order(FLAC__FileEncoder *encoder, unsigned value)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+ FLAC__ASSERT(0 != encoder->private_->seekable_stream_encoder);
+ if(encoder->protected_->state != FLAC__FILE_ENCODER_UNINITIALIZED)
+ return false;
+ return FLAC__seekable_stream_encoder_set_min_residual_partition_order(encoder->private_->seekable_stream_encoder, value);
+}
+
+FLAC__bool FLAC__file_encoder_set_max_residual_partition_order(FLAC__FileEncoder *encoder, unsigned value)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+ FLAC__ASSERT(0 != encoder->private_->seekable_stream_encoder);
+ if(encoder->protected_->state != FLAC__FILE_ENCODER_UNINITIALIZED)
+ return false;
+ return FLAC__seekable_stream_encoder_set_max_residual_partition_order(encoder->private_->seekable_stream_encoder, value);
+}
+
+FLAC__bool FLAC__file_encoder_set_rice_parameter_search_dist(FLAC__FileEncoder *encoder, unsigned value)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+ FLAC__ASSERT(0 != encoder->private_->seekable_stream_encoder);
+ if(encoder->protected_->state != FLAC__FILE_ENCODER_UNINITIALIZED)
+ return false;
+ return FLAC__seekable_stream_encoder_set_rice_parameter_search_dist(encoder->private_->seekable_stream_encoder, value);
+}
+
+FLAC__bool FLAC__file_encoder_set_total_samples_estimate(FLAC__FileEncoder *encoder, FLAC__uint64 value)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+ FLAC__ASSERT(0 != encoder->private_->seekable_stream_encoder);
+ if(encoder->protected_->state != FLAC__FILE_ENCODER_UNINITIALIZED)
+ return false;
+ return FLAC__seekable_stream_encoder_set_total_samples_estimate(encoder->private_->seekable_stream_encoder, value);
+}
+
+FLAC__bool FLAC__file_encoder_set_metadata(FLAC__FileEncoder *encoder, FLAC__StreamMetadata **metadata, unsigned num_blocks)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+ FLAC__ASSERT(0 != encoder->private_->seekable_stream_encoder);
+ if(encoder->protected_->state != FLAC__FILE_ENCODER_UNINITIALIZED)
+ return false;
+ return FLAC__seekable_stream_encoder_set_metadata(encoder->private_->stream_encoder, value);
+}
+
+FLAC__bool FLAC__file_encoder_set_filename(FLAC__FileEncoder *encoder, const char *value)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+ FLAC__ASSERT(0 != value);
+ if(encoder->protected_->state != FLAC__FILE_ENCODER_UNINITIALIZED)
+ return false;
+ if(0 != encoder->private_->filename) {
+ free(encoder->private_->filename);
+ encoder->private_->filename = 0;
+ }
+ if(0 == (encoder->private_->filename = (char*)malloc(strlen(value)+1))) {
+ encoder->protected_->state = FLAC__FILE_ENCODER_MEMORY_ALLOCATION_ERROR;
+ return false;
+ }
+ strcpy(encoder->private_->filename, value);
+ return true;
+}
+
+FLAC__FileEncoderState FLAC__file_encoder_get_state(const FLAC__FileEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->protected_);
+ return encoder->protected_->state;
+}
+
+FLAC__FileEncoderState FLAC__file_encoder_get_seekable_stream_encoder_state(const FLAC__FileEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ return FLAC__seekable_stream_encoder_get_state(encoder->private_->seekable_stream_encoder);
+}
+
+FLAC__bool FLAC__file_encoder_get_streamable_subset(const FLAC__FileEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ return FLAC__seekable_stream_encoder_get_streamable_subset(encoder->private_->seekable_stream_encoder);
+}
+
+FLAC__bool FLAC__file_encoder_get_do_mid_side_stereo(const FLAC__FileEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ return FLAC__seekable_stream_encoder_get_do_mid_side_stereo(encoder->private_->seekable_stream_encoder);
+}
+
+FLAC__bool FLAC__file_encoder_get_loose_mid_side_stereo(const FLAC__FileEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ return FLAC__seekable_stream_encoder_get_loose_mid_side_stereo(encoder->private_->seekable_stream_encoder);
+}
+
+unsigned FLAC__file_encoder_get_channels(const FLAC__FileEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ return FLAC__seekable_stream_encoder_get_channels(encoder->private_->seekable_stream_encoder);
+}
+
+unsigned FLAC__file_encoder_get_bits_per_sample(const FLAC__FileEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ return FLAC__seekable_stream_encoder_get_bits_per_sample(encoder->private_->seekable_stream_encoder);
+}
+
+unsigned FLAC__file_encoder_get_sample_rate(const FLAC__FileEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ return FLAC__seekable_stream_encoder_get_sample_rate(encoder->private_->seekable_stream_encoder);
+}
+
+unsigned FLAC__file_encoder_get_blocksize(const FLAC__FileEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ return FLAC__seekable_stream_encoder_get_blocksize(encoder->private_->seekable_stream_encoder);
+}
+
+unsigned FLAC__file_encoder_get_max_lpc_order(const FLAC__FileEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ return FLAC__seekable_stream_encoder_get_max_lpc_order(encoder->private_->seekable_stream_encoder);
+}
+
+unsigned FLAC__file_encoder_get_qlp_coeff_precision(const FLAC__FileEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ return FLAC__seekable_stream_encoder_get_qlp_coeff_precision(encoder->private_->seekable_stream_encoder);
+}
+
+FLAC__bool FLAC__file_encoder_get_do_qlp_coeff_prec_search(const FLAC__FileEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ return FLAC__seekable_stream_encoder_get_do_qlp_coeff_prec_search(encoder->private_->seekable_stream_encoder);
+}
+
+FLAC__bool FLAC__file_encoder_get_do_escape_coding(const FLAC__FileEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ return FLAC__seekable_stream_encoder_get_do_escape_coding(encoder->private_->seekable_stream_encoder);
+}
+
+FLAC__bool FLAC__file_encoder_get_do_exhaustive_model_search(const FLAC__FileEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ return FLAC__seekable_stream_encoder_get_do_exhaustive_model_search(encoder->private_->seekable_stream_encoder);
+}
+
+unsigned FLAC__file_encoder_get_min_residual_partition_order(const FLAC__FileEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ return FLAC__seekable_stream_encoder_get_min_residual_partition_order(encoder->private_->seekable_stream_encoder);
+}
+
+unsigned FLAC__file_encoder_get_max_residual_partition_order(const FLAC__FileEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ return FLAC__seekable_stream_encoder_get_max_residual_partition_order(encoder->private_->seekable_stream_encoder);
+}
+
+unsigned FLAC__file_encoder_get_rice_parameter_search_dist(const FLAC__FileEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ return FLAC__seekable_stream_encoder_get_rice_parameter_search_dist(encoder->private_->seekable_stream_encoder);
+}
+
+FLAC__bool FLAC__file_encoder_process(FLAC__FileEncoder *encoder, const FLAC__int32 * const buffer[], unsigned samples)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ return FLAC__seekable_stream_encoder_process(encoder->private_->seekable_stream_encoder, buffer, samples);
+}
+
+/* 'samples' is channel-wide samples, e.g. for 1 second at 44100Hz, 'samples' = 44100 regardless of the number of channels */
+FLAC__bool FLAC__file_encoder_process_interleaved(FLAC__FileEncoder *encoder, const FLAC__int32 buffer[], unsigned samples)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ return FLAC__seekable_stream_encoder_process_interleaved(encoder->private_->seekable_stream_encoder, buffer, samples);
+}
+
+/***********************************************************************
+ *
+ * Private class methods
+ *
+ ***********************************************************************/
+
+void set_defaults_(FLAC__FileEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+
+ encoder->protected_->filename = 0;
+}
+
+FLAC__StreamEncoderWriteStatus file_encoder_write_callback_(const FLAC__StreamEncoder *encoder, const FLAC__byte buffer[], unsigned bytes, unsigned samples, unsigned current_frame, void *client_data)
+{
+ FLAC__FileEncoder *file_encoder = (FLAC__FileEncoder*)client_data;
+
+ /* mark the current seek point if hit (if stream_offset == 0 that means we're still writing metadata and haven't hit the first frame yet) */
+ if(file_encoder->private_->stream_offset > 0 && file_encoder->private_->seek_table.num_points > 0) {
+ FLAC__uint64 current_sample = (FLAC__uint64)current_frame * (FLAC__uint64)FLAC__stream_encoder_get_blocksize(encoder), test_sample;
+ unsigned i;
+ for(i = file_encoder->private_->first_seek_point_to_check; i < file_encoder->private_->seek_table.num_points; i++) {
+ test_sample = file_encoder->private_->seek_table.points[i].sample_number;
+ if(test_sample > current_sample) {
+ break;
+ }
+ else if(test_sample == current_sample) {
+ file_encoder->private_->seek_table.points[i].stream_offset = file_encoder->private_->bytes_written - file_encoder->private_->stream_offset;
+ file_encoder->private_->seek_table.points[i].frame_samples = FLAC__stream_encoder_get_blocksize(encoder);
+ file_encoder->private_->first_seek_point_to_check++;
+ break;
+ }
+ else {
+ file_encoder->private_->first_seek_point_to_check++;
+ }
+ }
+ }
+
+ file_encoder->private_->bytes_written += bytes;
+ file_encoder->private_->samples_written += samples;
+ file_encoder->private_->current_frame = current_frame;
+
+ if(samples && file_encoder->private_->verbose && file_encoder->private_->total_samples_to_encode > 0 && !(current_frame & mask))
+ print_stats(file_encoder->private_);
+
+ if(file_encoder->private_->verify) {
+ file_encoder->private_->verify_fifo.encoded_signal = buffer;
+ file_encoder->private_->verify_fifo.encoded_bytes = bytes;
+ if(file_encoder->private_->verify_fifo.into_frames) {
+ if(!FLAC__stream_decoder_process_one_frame(file_encoder->private_->verify_fifo.decoder)) {
+ file_encoder->private_->verify_fifo.result = FLAC__VERIFY_FAILED_IN_FRAME;
+ return FLAC__STREAM_ENCODER_WRITE_FATAL_ERROR;
+ }
+ }
+ else {
+ if(!FLAC__stream_decoder_process_metadata(file_encoder->private_->verify_fifo.decoder)) {
+ file_encoder->private_->verify_fifo.result = FLAC__VERIFY_FAILED_IN_METADATA;
+ return FLAC__STREAM_ENCODER_WRITE_FATAL_ERROR;
+ }
+ }
+ }
+
+#ifdef FLAC__HAS_OGG
+ if(file_encoder->private_->use_ogg) {
+ ogg_packet op;
+
+ memset(&op, 0, sizeof(op));
+ op.packet = (unsigned char *)buffer;
+ op.granulepos = file_encoder->private_->samples_written - 1;
+ /*@@@ WATCHOUT:
+ * this depends on the behavior of libFLAC that we will get one
+ * write_callback first with all the metadata (and 'samples'
+ * will be 0), then one write_callback for each frame.
+ */
+ op.packetno = (samples == 0? -1 : (int)file_encoder->private_->current_frame);
+ op.bytes = bytes;
+
+ if (file_encoder->private_->bytes_written == bytes)
+ op.b_o_s = 1;
+
+ if (file_encoder->private_->total_samples_to_encode == file_encoder->private_->samples_written)
+ op.e_o_s = 1;
+
+ ogg_stream_packetin(&file_encoder->private_->ogg.os, &op);
+
+ while(ogg_stream_pageout(&file_encoder->private_->ogg.os, &file_encoder->private_->ogg.og) != 0) {
+ int written;
+ written = fwrite(file_encoder->private_->ogg.og.header, 1, file_encoder->private_->ogg.og.header_len, file_encoder->private_->fout);
+ if (written != file_encoder->private_->ogg.og.header_len)
+ return FLAC__STREAM_ENCODER_WRITE_FATAL_ERROR;
+
+ written = fwrite(file_encoder->private_->ogg.og.body, 1, file_encoder->private_->ogg.og.body_len, file_encoder->private_->fout);
+ if (written != file_encoder->private_->ogg.og.body_len)
+ return FLAC__STREAM_ENCODER_WRITE_FATAL_ERROR;
+ }
+
+ return FLAC__STREAM_ENCODER_WRITE_OK;
+ }
+ else
+#endif
+ {
+ if(fwrite(buffer, sizeof(FLAC__byte), bytes, file_encoder->private_->fout) == bytes)
+ return FLAC__STREAM_ENCODER_WRITE_OK;
+ else
+ return FLAC__STREAM_ENCODER_WRITE_FATAL_ERROR;
+ }
+}
+
+void file_encoder_metadata_callback_(const FLAC__StreamEncoder *encoder, const FLAC__StreamMetadata *metadata, void *client_data)
+{
+ file_encoder->private_ *file_encoder->private_ = (file_encoder->private_ *)client_data;
+ FLAC__byte b;
+ FILE *f = file_encoder->private_->fout;
+ const FLAC__uint64 samples = metadata->data.stream_info.total_samples;
+ const unsigned min_framesize = metadata->data.stream_info.min_framesize;
+ const unsigned max_framesize = metadata->data.stream_info.max_framesize;
+
+ FLAC__ASSERT(metadata->type == FLAC__METADATA_TYPE_STREAMINFO);
+
+ /*
+ * If we are writing to an ogg stream, there is no need to go back
+ * and update the STREAMINFO or SEEKTABLE blocks; the values we would
+ * update are not necessary with Ogg as the transport. We can't do
+ * it reliably anyway without knowing the Ogg structure.
+ */
+#ifdef FLAC__HAS_OGG
+ if(file_encoder->private_->use_ogg)
+ return;
+#endif
+
+ /*
+ * we get called by the encoder when the encoding process has
+ * finished so that we can update the STREAMINFO and SEEKTABLE
+ * blocks.
+ */
+
+ (void)encoder; /* silence compiler warning about unused parameter */
+
+ if(f != stdout) {
+ fclose(file_encoder->private_->fout);
+ if(0 == (f = fopen(file_encoder->private_->outfilename, "r+b")))
+ return;
+ }
+
+ /* all this is based on intimate knowledge of the stream header
+ * layout, but a change to the header format that would break this
+ * would also break all streams encoded in the previous format.
+ */
+
+ if(-1 == fseek(f, 26, SEEK_SET)) goto end_;
+ fwrite(metadata->data.stream_info.md5sum, 1, 16, f);
+
+ /* if we get this far we know we can seek so no need to check the
+ * return value from fseek()
+ */
+ fseek(f, 21, SEEK_SET);
+ if(fread(&b, 1, 1, f) != 1) goto framesize_;
+ fseek(f, 21, SEEK_SET);
+ b = (b & 0xf0) | (FLAC__byte)((samples >> 32) & 0x0F);
+ if(fwrite(&b, 1, 1, f) != 1) goto framesize_;
+ b = (FLAC__byte)((samples >> 24) & 0xFF);
+ if(fwrite(&b, 1, 1, f) != 1) goto framesize_;
+ b = (FLAC__byte)((samples >> 16) & 0xFF);
+ if(fwrite(&b, 1, 1, f) != 1) goto framesize_;
+ b = (FLAC__byte)((samples >> 8) & 0xFF);
+ if(fwrite(&b, 1, 1, f) != 1) goto framesize_;
+ b = (FLAC__byte)(samples & 0xFF);
+ if(fwrite(&b, 1, 1, f) != 1) goto framesize_;
+
+framesize_:
+ fseek(f, 12, SEEK_SET);
+ b = (FLAC__byte)((min_framesize >> 16) & 0xFF);
+ if(fwrite(&b, 1, 1, f) != 1) goto seektable_;
+ b = (FLAC__byte)((min_framesize >> 8) & 0xFF);
+ if(fwrite(&b, 1, 1, f) != 1) goto seektable_;
+ b = (FLAC__byte)(min_framesize & 0xFF);
+ if(fwrite(&b, 1, 1, f) != 1) goto seektable_;
+ b = (FLAC__byte)((max_framesize >> 16) & 0xFF);
+ if(fwrite(&b, 1, 1, f) != 1) goto seektable_;
+ b = (FLAC__byte)((max_framesize >> 8) & 0xFF);
+ if(fwrite(&b, 1, 1, f) != 1) goto seektable_;
+ b = (FLAC__byte)(max_framesize & 0xFF);
+ if(fwrite(&b, 1, 1, f) != 1) goto seektable_;
+
+seektable_:
+ if(file_encoder->private_->seek_table.num_points > 0) {
+ long pos;
+ unsigned i;
+
+ /* convert any unused seek points to placeholders */
+ for(i = 0; i < file_encoder->private_->seek_table.num_points; i++) {
+ if(file_encoder->private_->seek_table.points[i].sample_number == FLAC__STREAM_METADATA_SEEKPOINT_PLACEHOLDER)
+ break;
+ else if(file_encoder->private_->seek_table.points[i].frame_samples == 0)
+ file_encoder->private_->seek_table.points[i].sample_number = FLAC__STREAM_METADATA_SEEKPOINT_PLACEHOLDER;
+ }
+
+ /* the offset of the seek table data 'pos' should be after then stream sync and STREAMINFO block and SEEKTABLE header */
+ pos = (FLAC__STREAM_SYNC_LEN + FLAC__STREAM_METADATA_IS_LAST_LEN + FLAC__STREAM_METADATA_TYPE_LEN + FLAC__STREAM_METADATA_LENGTH_LEN) / 8;
+ pos += metadata->length;
+ pos += (FLAC__STREAM_METADATA_IS_LAST_LEN + FLAC__STREAM_METADATA_TYPE_LEN + FLAC__STREAM_METADATA_LENGTH_LEN) / 8;
+ fseek(f, pos, SEEK_SET);
+ for(i = 0; i < file_encoder->private_->seek_table.num_points; i++) {
+ if(!write_big_endian_uint64(f, file_encoder->private_->seek_table.points[i].sample_number)) goto end_;
+ if(!write_big_endian_uint64(f, file_encoder->private_->seek_table.points[i].stream_offset)) goto end_;
+ if(!write_big_endian_uint16(f, (FLAC__uint16)file_encoder->private_->seek_table.points[i].frame_samples)) goto end_;
+ }
+ }
+
+end_:
+ fclose(f);
+ return;
+}
noinst_HEADERS = \
all.h \
file_decoder.h \
+ file_encoder.h \
seekable_stream_decoder.h \
+ seekable_stream_encoder.h \
stream_decoder.h \
stream_encoder.h
#define FLAC__PROTECTED__ALL_H
#include "file_decoder.h"
+#include "file_encoder.h"
#include "seekable_stream_decoder.h"
+#include "seekable_stream_encoder.h"
#include "stream_decoder.h"
#include "stream_encoder.h"
--- /dev/null
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2001,2002 Josh Coalson
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifndef FLAC__PROTECTED__FILE_ENCODER_H
+#define FLAC__PROTECTED__FILE_ENCODER_H
+
+#include "FLAC/file_encoder.h"
+
+typedef struct FLAC__FileEncoderProtected {
+ FLAC__FileEncoderState state;
+} FLAC__FileEncoderProtected;
+
+#endif
--- /dev/null
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2002 Josh Coalson
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifndef FLAC__PROTECTED__SEEKABLE_STREAM_ENCODER_H
+#define FLAC__PROTECTED__SEEKABLE_STREAM_ENCODER_H
+
+#include "FLAC/seekable_stream_encoder.h"
+
+typedef struct FLAC__SeekableStreamEncoderProtected {
+ FLAC__SeekableStreamEncoderState state;
+} FLAC__SeekableStreamEncoderProtected;
+
+#endif
--- /dev/null
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2002 Josh Coalson
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#include <stdio.h>
+#include <stdlib.h> /* for malloc() */
+#include <string.h> /* for memcpy() */
+#include "FLAC/assert.h"
+#include "protected/seekable_stream_encoder.h"
+#include "protected/stream_encoder.h"
+
+/***********************************************************************
+ *
+ * Private class method prototypes
+ *
+ ***********************************************************************/
+
+static void set_defaults_(FLAC__SeekableStreamEncoder *encoder);
+static FLAC__StreamEncoderWriteStatus write_callback_(const FLAC__StreamEncoder *encoder, const FLAC__byte buffer[], unsigned bytes, unsigned samples, unsigned current_frame, void *client_data);
+static void metadata_callback_(const FLAC__StreamEncoder *encoder, const FLAC__StreamMetadata *metadata, void *client_data);
+
+/***********************************************************************
+ *
+ * Private class data
+ *
+ ***********************************************************************/
+
+typedef struct FLAC__SeekableStreamEncoderPrivate {
+ FILE *file;
+ char *filename;
+ FLAC__StreamEncoder *stream_encoder;
+} FLAC__SeekableStreamEncoderPrivate;
+
+/***********************************************************************
+ *
+ * Public static class data
+ *
+ ***********************************************************************/
+
+const char * const FLAC__SeekableStreamEncoderStateString[] = {
+ "FLAC__SEEKABLE_STREAM_ENCODER_OK",
+ "FLAC__SEEKABLE_STREAM_ENCODER_STREAM_ENCODER_ERROR",
+ "FLAC__SEEKABLE_STREAM_ENCODER_ERROR_OPENING_FILE",
+ "FLAC__SEEKABLE_STREAM_ENCODER_MEMORY_ALLOCATION_ERROR",
+ "FLAC__SEEKABLE_STREAM_ENCODER_ALREADY_INITIALIZED",
+ "FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED"
+};
+
+
+/***********************************************************************
+ *
+ * Class constructor/destructor
+ *
+ ***********************************************************************/
+FLAC__SeekableStreamEncoder *FLAC__seekable_stream_encoder_new()
+{
+ FLAC__SeekableStreamEncoder *encoder;
+
+ FLAC__ASSERT(sizeof(int) >= 4); /* we want to die right away if this is not true */
+
+ encoder = (FLAC__SeekableStreamEncoder*)malloc(sizeof(FLAC__SeekableStreamEncoder));
+ if(encoder == 0) {
+ return 0;
+ }
+ encoder->protected_ = (FLAC__SeekableStreamEncoderProtected*)malloc(sizeof(FLAC__SeekableStreamEncoderProtected));
+ if(encoder->protected_ == 0) {
+ free(encoder);
+ return 0;
+ }
+ encoder->private_ = (FLAC__SeekableStreamEncoderPrivate*)malloc(sizeof(FLAC__SeekableStreamEncoderPrivate));
+ if(encoder->private_ == 0) {
+ free(encoder->protected_);
+ free(encoder);
+ return 0;
+ }
+
+ encoder->private_->stream_encoder = FLAC__stream_encoder_new();
+
+ if(0 == encoder->private_->stream_encoder) {
+ free(encoder->private_);
+ free(encoder->protected_);
+ free(encoder);
+ return 0;
+ }
+
+ set_defaults_(encoder);
+
+ encoder->protected_->state = FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED;
+
+ return encoder;
+}
+
+void FLAC__seekable_stream_encoder_delete(FLAC__SeekableStreamEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->protected_);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->private_->stream_encoder);
+
+ (void)FLAC__seekable_stream_encoder_finish(encoder);
+
+ FLAC__stream_encoder_delete(encoder->private_->stream_encoder);
+
+ free(encoder->private_);
+ free(encoder->protected_);
+ free(encoder);
+}
+
+/***********************************************************************
+ *
+ * Public class methods
+ *
+ ***********************************************************************/
+
+FLAC__SeekableStreamEncoderState FLAC__seekable_stream_encoder_init(FLAC__SeekableStreamEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+
+ if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
+ return encoder->protected_->state = FLAC__SEEKABLE_STREAM_ENCODER_ALREADY_INITIALIZED;
+
+ if(0 == encoder->private_->filename)
+ return encoder->protected_->state = FLAC__SEEKABLE_STREAM_ENCODER_NO_FILENAME;
+
+ encoder->private_->file = fopen(encoder->private_->filename, "wb");
+
+ if(encoder->private_->file == 0)
+ return encoder->protected_->state = FLAC__SEEKABLE_STREAM_ENCODER_ERROR_OPENING_FILE;
+
+ FLAC__stream_encoder_set_write_callback(encoder->private_->stream_encoder, write_callback_);
+ FLAC__stream_encoder_set_metadata_callback(encoder->private_->stream_encoder, metadata_callback_);
+ FLAC__stream_encoder_set_client_data(encoder->private_->stream_encoder, encoder);
+
+ if(FLAC__stream_encoder_init(encoder->private_->stream_encoder) != FLAC__STREAM_ENCODER_OK)
+ return encoder->protected_->state = FLAC__SEEKABLE_STREAM_ENCODER_STREAM_ENCODER_ERROR;
+
+ return decoder->protected_->state = FLAC__SEEKABLE_STREAM_ENCODER_OK;
+}
+
+void FLAC__seekable_stream_encoder_finish(FLAC__SeekableStreamEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+
+ if(encoder->protected_->state == FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
+ return;
+
+ FLAC__ASSERT(0 != encoder->private_->stream_encoder);
+
+ if(0 != encoder->private_->file) {
+ fclose(encoder->private_->file);
+ encoder->private_->file = 0;
+ }
+
+ if(0 != encoder->private_->filename) {
+ free(encoder->private_->filename);
+ encoder->private_->filename = 0;
+ }
+
+ set_defaults_(encoder);
+
+ encoder->protected_->state = FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED;
+
+ return FLAC__stream_encoder_finish(encoder->private_->stream_encoder);
+}
+
+FLAC__bool FLAC__seekable_stream_encoder_set_streamable_subset(FLAC__SeekableStreamEncoder *encoder, FLAC__bool value)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+ FLAC__ASSERT(0 != encoder->private_->stream_encoder);
+ if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
+ return false;
+ return FLAC__stream_encoder_set_streamable_subset(encoder->private_->stream_encoder, value);
+}
+
+FLAC__bool FLAC__seekable_stream_encoder_set_do_mid_side_stereo(FLAC__SeekableStreamEncoder *encoder, FLAC__bool value)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+ FLAC__ASSERT(0 != encoder->private_->stream_encoder);
+ if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
+ return false;
+ return FLAC__stream_encoder_set_do_mid_side_stereo(encoder->private_->stream_encoder, value);
+}
+
+FLAC__bool FLAC__seekable_stream_encoder_set_loose_mid_side_stereo(FLAC__SeekableStreamEncoder *encoder, FLAC__bool value)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+ FLAC__ASSERT(0 != encoder->private_->stream_encoder);
+ if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
+ return false;
+ return FLAC__stream_encoder_set_loose_mid_side_stereo(encoder->private_->stream_encoder, value);
+}
+
+FLAC__bool FLAC__seekable_stream_encoder_set_channels(FLAC__SeekableStreamEncoder *encoder, unsigned value)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+ FLAC__ASSERT(0 != encoder->private_->stream_encoder);
+ if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
+ return false;
+ return FLAC__stream_encoder_set_channels(encoder->private_->stream_encoder, value);
+}
+
+FLAC__bool FLAC__seekable_stream_encoder_set_bits_per_sample(FLAC__SeekableStreamEncoder *encoder, unsigned value)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+ FLAC__ASSERT(0 != encoder->private_->stream_encoder);
+ if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
+ return false;
+ return FLAC__stream_encoder_set_bits_per_sample(encoder->private_->stream_encoder, value);
+}
+
+FLAC__bool FLAC__seekable_stream_encoder_set_sample_rate(FLAC__SeekableStreamEncoder *encoder, unsigned value)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+ FLAC__ASSERT(0 != encoder->private_->stream_encoder);
+ if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
+ return false;
+ return FLAC__stream_encoder_set_sample_rate(encoder->private_->stream_encoder, value);
+}
+
+FLAC__bool FLAC__seekable_stream_encoder_set_blocksize(FLAC__SeekableStreamEncoder *encoder, unsigned value)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+ FLAC__ASSERT(0 != encoder->private_->stream_encoder);
+ if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
+ return false;
+ return FLAC__stream_encoder_set_blocksize(encoder->private_->stream_encoder, value);
+}
+
+FLAC__bool FLAC__seekable_stream_encoder_set_max_lpc_order(FLAC__SeekableStreamEncoder *encoder, unsigned value)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+ FLAC__ASSERT(0 != encoder->private_->stream_encoder);
+ if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
+ return false;
+ return FLAC__stream_encoder_set_max_lpc_order(encoder->private_->stream_encoder, value);
+}
+
+FLAC__bool FLAC__seekable_stream_encoder_set_qlp_coeff_precision(FLAC__SeekableStreamEncoder *encoder, unsigned value)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+ FLAC__ASSERT(0 != encoder->private_->stream_encoder);
+ if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
+ return false;
+ return FLAC__stream_encoder_set_qlp_coeff_precision(encoder->private_->stream_encoder, value);
+}
+
+FLAC__bool FLAC__seekable_stream_encoder_set_do_qlp_coeff_prec_search(FLAC__SeekableStreamEncoder *encoder, FLAC__bool value)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+ FLAC__ASSERT(0 != encoder->private_->stream_encoder);
+ if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
+ return false;
+ return FLAC__stream_encoder_set_do_qlp_coeff_prec_search(encoder->private_->stream_encoder, value);
+}
+
+FLAC__bool FLAC__seekable_stream_encoder_set_do_escape_coding(FLAC__SeekableStreamEncoder *encoder, FLAC__bool value)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+ FLAC__ASSERT(0 != encoder->private_->stream_encoder);
+ if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
+ return false;
+ return FLAC__stream_encoder_set_do_escape_coding(encoder->private_->stream_encoder, value);
+}
+
+FLAC__bool FLAC__seekable_stream_encoder_set_do_exhaustive_model_search(FLAC__SeekableStreamEncoder *encoder, FLAC__bool value)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+ FLAC__ASSERT(0 != encoder->private_->stream_encoder);
+ if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
+ return false;
+ return FLAC__stream_encoder_set_do_exhaustive_model_search(encoder->private_->stream_encoder, value);
+}
+
+FLAC__bool FLAC__seekable_stream_encoder_set_min_residual_partition_order(FLAC__SeekableStreamEncoder *encoder, unsigned value)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+ FLAC__ASSERT(0 != encoder->private_->stream_encoder);
+ if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
+ return false;
+ return FLAC__stream_encoder_set_min_residual_partition_order(encoder->private_->stream_encoder, value);
+}
+
+FLAC__bool FLAC__seekable_stream_encoder_set_max_residual_partition_order(FLAC__SeekableStreamEncoder *encoder, unsigned value)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+ FLAC__ASSERT(0 != encoder->private_->stream_encoder);
+ if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
+ return false;
+ return FLAC__stream_encoder_set_max_residual_partition_order(encoder->private_->stream_encoder, value);
+}
+
+FLAC__bool FLAC__seekable_stream_encoder_set_rice_parameter_search_dist(FLAC__SeekableStreamEncoder *encoder, unsigned value)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+ FLAC__ASSERT(0 != encoder->private_->stream_encoder);
+ if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
+ return false;
+ return FLAC__stream_encoder_set_rice_parameter_search_dist(encoder->private_->stream_encoder, value);
+}
+
+FLAC__bool FLAC__seekable_stream_encoder_set_total_samples_estimate(FLAC__SeekableStreamEncoder *encoder, FLAC__uint64 value)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+ FLAC__ASSERT(0 != encoder->private_->stream_encoder);
+ if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
+ return false;
+ return FLAC__stream_encoder_set_total_samples_estimate(encoder->private_->stream_encoder, value);
+}
+
+FLAC__bool FLAC__seekable_stream_encoder_set_metadata(FLAC__SeekableStreamEncoder *encoder, FLAC__StreamMetadata **metadata, unsigned num_blocks)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+ FLAC__ASSERT(0 != encoder->private_->stream_encoder);
+ if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
+ return false;
+ return FLAC__stream_encoder_set_metadata(encoder->private_->stream_encoder, value);
+}
+
+FLAC__bool FLAC__seekable_stream_encoder_set_seek_callback(FLAC__SeekableStreamEncoder *encoder, FLAC__SeekableStreamEncoderSeekStatus (*value)(const FLAC__SeekableStreamEncoder *encoder, FLAC__uint64 absolute_byte_offset, void *client_data))
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+ if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
+ return false;
+ encoder->private_->seek_callback = value;
+ return true;
+}
+
+FLAC__bool FLAC__stream_encoder_set_write_callback(FLAC__StreamEncoder *encoder, FLAC__StreamEncoderWriteStatus (*value)(const FLAC__StreamEncoder *encoder, const FLAC__byte buffer[], unsigned bytes, unsigned samples, unsigned current_frame, void *client_data))
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+ if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
+ return false;
+ encoder->private_->write_callback = value;
+ return true;
+}
+
+FLAC__bool FLAC__stream_encoder_set_client_data(FLAC__StreamEncoder *encoder, void *value)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+ if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
+ return false;
+ encoder->private_->client_data = value;
+ return true;
+}
+
+FLAC__SeekableStreamEncoderState FLAC__seekable_stream_encoder_get_state(const FLAC__SeekableStreamEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->protected_);
+ return encoder->protected_->state;
+}
+
+FLAC__SeekableStreamEncoderState FLAC__seekable_stream_encoder_get_stream_encoder_state(const FLAC__SeekableStreamEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ return FLAC__stream_encoder_get_state(encoder->private_->stream_encoder);
+}
+
+FLAC__bool FLAC__seekable_stream_encoder_get_streamable_subset(const FLAC__SeekableStreamEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ return FLAC__stream_encoder_get_streamable_subset(encoder->private_->stream_encoder);
+}
+
+FLAC__bool FLAC__seekable_stream_encoder_get_do_mid_side_stereo(const FLAC__SeekableStreamEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ return FLAC__stream_encoder_get_do_mid_side_stereo(encoder->private_->stream_encoder);
+}
+
+FLAC__bool FLAC__seekable_stream_encoder_get_loose_mid_side_stereo(const FLAC__SeekableStreamEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ return FLAC__stream_encoder_get_loose_mid_side_stereo(encoder->private_->stream_encoder);
+}
+
+unsigned FLAC__seekable_stream_encoder_get_channels(const FLAC__SeekableStreamEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ return FLAC__stream_encoder_get_channels(encoder->private_->stream_encoder);
+}
+
+unsigned FLAC__seekable_stream_encoder_get_bits_per_sample(const FLAC__SeekableStreamEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ return FLAC__stream_encoder_get_bits_per_sample(encoder->private_->stream_encoder);
+}
+
+unsigned FLAC__seekable_stream_encoder_get_sample_rate(const FLAC__SeekableStreamEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ return FLAC__stream_encoder_get_sample_rate(encoder->private_->stream_encoder);
+}
+
+unsigned FLAC__seekable_stream_encoder_get_blocksize(const FLAC__SeekableStreamEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ return FLAC__stream_encoder_get_blocksize(encoder->private_->stream_encoder);
+}
+
+unsigned FLAC__seekable_stream_encoder_get_max_lpc_order(const FLAC__SeekableStreamEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ return FLAC__stream_encoder_get_max_lpc_order(encoder->private_->stream_encoder);
+}
+
+unsigned FLAC__seekable_stream_encoder_get_qlp_coeff_precision(const FLAC__SeekableStreamEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ return FLAC__stream_encoder_get_qlp_coeff_precision(encoder->private_->stream_encoder);
+}
+
+FLAC__bool FLAC__seekable_stream_encoder_get_do_qlp_coeff_prec_search(const FLAC__SeekableStreamEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ return FLAC__stream_encoder_get_do_qlp_coeff_prec_search(encoder->private_->stream_encoder);
+}
+
+FLAC__bool FLAC__seekable_stream_encoder_get_do_escape_coding(const FLAC__SeekableStreamEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ return FLAC__stream_encoder_get_do_escape_coding(encoder->private_->stream_encoder);
+}
+
+FLAC__bool FLAC__seekable_stream_encoder_get_do_exhaustive_model_search(const FLAC__SeekableStreamEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ return FLAC__stream_encoder_get_do_exhaustive_model_search(encoder->private_->stream_encoder);
+}
+
+unsigned FLAC__seekable_stream_encoder_get_min_residual_partition_order(const FLAC__SeekableStreamEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ return FLAC__stream_encoder_get_min_residual_partition_order(encoder->private_->stream_encoder);
+}
+
+unsigned FLAC__seekable_stream_encoder_get_max_residual_partition_order(const FLAC__SeekableStreamEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ return FLAC__stream_encoder_get_max_residual_partition_order(encoder->private_->stream_encoder);
+}
+
+unsigned FLAC__seekable_stream_encoder_get_rice_parameter_search_dist(const FLAC__SeekableStreamEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ return FLAC__stream_encoder_get_rice_parameter_search_dist(encoder->private_->stream_encoder);
+}
+
+FLAC__bool FLAC__seekable_stream_encoder_process(FLAC__SeekableStreamEncoder *encoder, const FLAC__int32 * const buffer[], unsigned samples)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ return FLAC__stream_encoder_process(encoder->private_->stream_encoder, buffer, samples);
+}
+
+/* 'samples' is channel-wide samples, e.g. for 1 second at 44100Hz, 'samples' = 44100 regardless of the number of channels */
+FLAC__bool FLAC__seekable_stream_encoder_process_interleaved(FLAC__SeekableStreamEncoder *encoder, const FLAC__int32 buffer[], unsigned samples)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ return FLAC__stream_encoder_process_interleaved(encoder->private_->stream_encoder, buffer, samples);
+}
+
+/***********************************************************************
+ *
+ * Private class methods
+ *
+ ***********************************************************************/
+
+void set_defaults_(FLAC__SeekableStreamEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+
+ encoder->protected_->filename = 0;
+}
+
+FLAC__StreamEncoderWriteStatus write_callback_(const FLAC__StreamEncoder *encoder, const FLAC__byte buffer[], unsigned bytes, unsigned samples, unsigned current_frame, void *client_data)
+{
+ FLAC__SeekableStreamEncoder *seekable_stream_encoder = (FLAC__SeekableStreamEncoder*)client_data;
+
+ /* mark the current seek point if hit (if stream_offset == 0 that means we're still writing metadata and haven't hit the first frame yet) */
+ if(seekable_stream_encoder->private_->stream_offset > 0 && seekable_stream_encoder->private_->seek_table.num_points > 0) {
+ FLAC__uint64 current_sample = (FLAC__uint64)current_frame * (FLAC__uint64)FLAC__stream_encoder_get_blocksize(encoder), test_sample;
+ unsigned i;
+ for(i = seekable_stream_encoder->private_->first_seek_point_to_check; i < seekable_stream_encoder->private_->seek_table.num_points; i++) {
+ test_sample = seekable_stream_encoder->private_->seek_table.points[i].sample_number;
+ if(test_sample > current_sample) {
+ break;
+ }
+ else if(test_sample == current_sample) {
+ seekable_stream_encoder->private_->seek_table.points[i].stream_offset = seekable_stream_encoder->private_->bytes_written - seekable_stream_encoder->private_->stream_offset;
+ seekable_stream_encoder->private_->seek_table.points[i].frame_samples = FLAC__stream_encoder_get_blocksize(encoder);
+ seekable_stream_encoder->private_->first_seek_point_to_check++;
+ break;
+ }
+ else {
+ seekable_stream_encoder->private_->first_seek_point_to_check++;
+ }
+ }
+ }
+
+ seekable_stream_encoder->private_->bytes_written += bytes;
+ seekable_stream_encoder->private_->samples_written += samples;
+ seekable_stream_encoder->private_->current_frame = current_frame;
+
+ if(samples && seekable_stream_encoder->private_->verbose && seekable_stream_encoder->private_->total_samples_to_encode > 0 && !(current_frame & mask))
+ print_stats(seekable_stream_encoder->private_);
+
+ if(seekable_stream_encoder->private_->verify) {
+ seekable_stream_encoder->private_->verify_fifo.encoded_signal = buffer;
+ seekable_stream_encoder->private_->verify_fifo.encoded_bytes = bytes;
+ if(seekable_stream_encoder->private_->verify_fifo.into_frames) {
+ if(!FLAC__stream_decoder_process_one_frame(seekable_stream_encoder->private_->verify_fifo.decoder)) {
+ seekable_stream_encoder->private_->verify_fifo.result = FLAC__VERIFY_FAILED_IN_FRAME;
+ return FLAC__STREAM_ENCODER_WRITE_FATAL_ERROR;
+ }
+ }
+ else {
+ if(!FLAC__stream_decoder_process_metadata(seekable_stream_encoder->private_->verify_fifo.decoder)) {
+ seekable_stream_encoder->private_->verify_fifo.result = FLAC__VERIFY_FAILED_IN_METADATA;
+ return FLAC__STREAM_ENCODER_WRITE_FATAL_ERROR;
+ }
+ }
+ }
+
+#ifdef FLAC__HAS_OGG
+ if(seekable_stream_encoder->private_->use_ogg) {
+ ogg_packet op;
+
+ memset(&op, 0, sizeof(op));
+ op.packet = (unsigned char *)buffer;
+ op.granulepos = seekable_stream_encoder->private_->samples_written - 1;
+ /*@@@ WATCHOUT:
+ * this depends on the behavior of libFLAC that we will get one
+ * write_callback first with all the metadata (and 'samples'
+ * will be 0), then one write_callback for each frame.
+ */
+ op.packetno = (samples == 0? -1 : (int)seekable_stream_encoder->private_->current_frame);
+ op.bytes = bytes;
+
+ if (seekable_stream_encoder->private_->bytes_written == bytes)
+ op.b_o_s = 1;
+
+ if (seekable_stream_encoder->private_->total_samples_to_encode == seekable_stream_encoder->private_->samples_written)
+ op.e_o_s = 1;
+
+ ogg_stream_packetin(&seekable_stream_encoder->private_->ogg.os, &op);
+
+ while(ogg_stream_pageout(&seekable_stream_encoder->private_->ogg.os, &seekable_stream_encoder->private_->ogg.og) != 0) {
+ int written;
+ written = fwrite(seekable_stream_encoder->private_->ogg.og.header, 1, seekable_stream_encoder->private_->ogg.og.header_len, seekable_stream_encoder->private_->fout);
+ if (written != seekable_stream_encoder->private_->ogg.og.header_len)
+ return FLAC__STREAM_ENCODER_WRITE_FATAL_ERROR;
+
+ written = fwrite(seekable_stream_encoder->private_->ogg.og.body, 1, seekable_stream_encoder->private_->ogg.og.body_len, seekable_stream_encoder->private_->fout);
+ if (written != seekable_stream_encoder->private_->ogg.og.body_len)
+ return FLAC__STREAM_ENCODER_WRITE_FATAL_ERROR;
+ }
+
+ return FLAC__STREAM_ENCODER_WRITE_OK;
+ }
+ else
+#endif
+ {
+ if(fwrite(buffer, sizeof(FLAC__byte), bytes, seekable_stream_encoder->private_->fout) == bytes)
+ return FLAC__STREAM_ENCODER_WRITE_OK;
+ else
+ return FLAC__STREAM_ENCODER_WRITE_FATAL_ERROR;
+ }
+}
+
+void metadata_callback_(const FLAC__StreamEncoder *encoder, const FLAC__StreamMetadata *metadata, void *client_data)
+{
+ seekable_stream_encoder->private_ *seekable_stream_encoder->private_ = (seekable_stream_encoder->private_ *)client_data;
+ FLAC__byte b;
+ FILE *f = seekable_stream_encoder->private_->fout;
+ const FLAC__uint64 samples = metadata->data.stream_info.total_samples;
+ const unsigned min_framesize = metadata->data.stream_info.min_framesize;
+ const unsigned max_framesize = metadata->data.stream_info.max_framesize;
+
+ FLAC__ASSERT(metadata->type == FLAC__METADATA_TYPE_STREAMINFO);
+
+ /*
+ * If we are writing to an ogg stream, there is no need to go back
+ * and update the STREAMINFO or SEEKTABLE blocks; the values we would
+ * update are not necessary with Ogg as the transport. We can't do
+ * it reliably anyway without knowing the Ogg structure.
+ */
+#ifdef FLAC__HAS_OGG
+ if(seekable_stream_encoder->private_->use_ogg)
+ return;
+#endif
+
+ /*
+ * we get called by the encoder when the encoding process has
+ * finished so that we can update the STREAMINFO and SEEKTABLE
+ * blocks.
+ */
+
+ (void)encoder; /* silence compiler warning about unused parameter */
+
+ if(f != stdout) {
+ fclose(seekable_stream_encoder->private_->fout);
+ if(0 == (f = fopen(seekable_stream_encoder->private_->outfilename, "r+b")))
+ return;
+ }
+
+ /* all this is based on intimate knowledge of the stream header
+ * layout, but a change to the header format that would break this
+ * would also break all streams encoded in the previous format.
+ */
+
+ if(-1 == fseek(f, 26, SEEK_SET)) goto end_;
+ fwrite(metadata->data.stream_info.md5sum, 1, 16, f);
+
+ /* if we get this far we know we can seek so no need to check the
+ * return value from fseek()
+ */
+ fseek(f, 21, SEEK_SET);
+ if(fread(&b, 1, 1, f) != 1) goto framesize_;
+ fseek(f, 21, SEEK_SET);
+ b = (b & 0xf0) | (FLAC__byte)((samples >> 32) & 0x0F);
+ if(fwrite(&b, 1, 1, f) != 1) goto framesize_;
+ b = (FLAC__byte)((samples >> 24) & 0xFF);
+ if(fwrite(&b, 1, 1, f) != 1) goto framesize_;
+ b = (FLAC__byte)((samples >> 16) & 0xFF);
+ if(fwrite(&b, 1, 1, f) != 1) goto framesize_;
+ b = (FLAC__byte)((samples >> 8) & 0xFF);
+ if(fwrite(&b, 1, 1, f) != 1) goto framesize_;
+ b = (FLAC__byte)(samples & 0xFF);
+ if(fwrite(&b, 1, 1, f) != 1) goto framesize_;
+
+framesize_:
+ fseek(f, 12, SEEK_SET);
+ b = (FLAC__byte)((min_framesize >> 16) & 0xFF);
+ if(fwrite(&b, 1, 1, f) != 1) goto seektable_;
+ b = (FLAC__byte)((min_framesize >> 8) & 0xFF);
+ if(fwrite(&b, 1, 1, f) != 1) goto seektable_;
+ b = (FLAC__byte)(min_framesize & 0xFF);
+ if(fwrite(&b, 1, 1, f) != 1) goto seektable_;
+ b = (FLAC__byte)((max_framesize >> 16) & 0xFF);
+ if(fwrite(&b, 1, 1, f) != 1) goto seektable_;
+ b = (FLAC__byte)((max_framesize >> 8) & 0xFF);
+ if(fwrite(&b, 1, 1, f) != 1) goto seektable_;
+ b = (FLAC__byte)(max_framesize & 0xFF);
+ if(fwrite(&b, 1, 1, f) != 1) goto seektable_;
+
+seektable_:
+ if(seekable_stream_encoder->private_->seek_table.num_points > 0) {
+ long pos;
+ unsigned i;
+
+ /* convert any unused seek points to placeholders */
+ for(i = 0; i < seekable_stream_encoder->private_->seek_table.num_points; i++) {
+ if(seekable_stream_encoder->private_->seek_table.points[i].sample_number == FLAC__STREAM_METADATA_SEEKPOINT_PLACEHOLDER)
+ break;
+ else if(seekable_stream_encoder->private_->seek_table.points[i].frame_samples == 0)
+ seekable_stream_encoder->private_->seek_table.points[i].sample_number = FLAC__STREAM_METADATA_SEEKPOINT_PLACEHOLDER;
+ }
+
+ /* the offset of the seek table data 'pos' should be after then stream sync and STREAMINFO block and SEEKTABLE header */
+ pos = (FLAC__STREAM_SYNC_LEN + FLAC__STREAM_METADATA_IS_LAST_LEN + FLAC__STREAM_METADATA_TYPE_LEN + FLAC__STREAM_METADATA_LENGTH_LEN) / 8;
+ pos += metadata->length;
+ pos += (FLAC__STREAM_METADATA_IS_LAST_LEN + FLAC__STREAM_METADATA_TYPE_LEN + FLAC__STREAM_METADATA_LENGTH_LEN) / 8;
+ fseek(f, pos, SEEK_SET);
+ for(i = 0; i < seekable_stream_encoder->private_->seek_table.num_points; i++) {
+ if(!write_big_endian_uint64(f, seekable_stream_encoder->private_->seek_table.points[i].sample_number)) goto end_;
+ if(!write_big_endian_uint64(f, seekable_stream_encoder->private_->seek_table.points[i].stream_offset)) goto end_;
+ if(!write_big_endian_uint16(f, (FLAC__uint16)seekable_stream_encoder->private_->seek_table.points[i].frame_samples)) goto end_;
+ }
+ }
+
+end_:
+ fclose(f);
+ return;
+}
*
***********************************************************************/
-static void stream_encoder_set_defaults_(FLAC__StreamEncoder *encoder);
-static void stream_encoder_free_(FLAC__StreamEncoder *encoder);
-static FLAC__bool stream_encoder_resize_buffers_(FLAC__StreamEncoder *encoder, unsigned new_size);
-static FLAC__bool stream_encoder_process_frame_(FLAC__StreamEncoder *encoder, FLAC__bool is_last_frame);
-static FLAC__bool stream_encoder_process_subframes_(FLAC__StreamEncoder *encoder, FLAC__bool is_last_frame);
-static FLAC__bool stream_encoder_process_subframe_(FLAC__StreamEncoder *encoder, unsigned min_partition_order, unsigned max_partition_order, FLAC__bool precompute_partition_sums, FLAC__bool verbatim_only, const FLAC__FrameHeader *frame_header, unsigned subframe_bps, const FLAC__int32 integer_signal[], const FLAC__real real_signal[], FLAC__Subframe *subframe[2], FLAC__int32 *residual[2], unsigned *best_subframe, unsigned *best_bits);
-static FLAC__bool stream_encoder_add_subframe_(FLAC__StreamEncoder *encoder, const FLAC__FrameHeader *frame_header, unsigned subframe_bps, const FLAC__Subframe *subframe, FLAC__BitBuffer *frame);
-static unsigned stream_encoder_evaluate_constant_subframe_(const FLAC__int32 signal, unsigned subframe_bps, FLAC__Subframe *subframe);
-static unsigned stream_encoder_evaluate_fixed_subframe_(FLAC__StreamEncoder *encoder, const FLAC__int32 signal[], FLAC__int32 residual[], FLAC__uint32 abs_residual[], FLAC__uint64 abs_residual_partition_sums[], unsigned raw_bits_per_partition[], unsigned blocksize, unsigned subframe_bps, unsigned order, unsigned rice_parameter, unsigned min_partition_order, unsigned max_partition_order, FLAC__bool precompute_partition_sums, FLAC__bool do_escape_coding, unsigned rice_parameter_search_dist, FLAC__Subframe *subframe);
-static unsigned stream_encoder_evaluate_lpc_subframe_(FLAC__StreamEncoder *encoder, const FLAC__int32 signal[], FLAC__int32 residual[], FLAC__uint32 abs_residual[], FLAC__uint64 abs_residual_partition_sums[], unsigned raw_bits_per_partition[], const FLAC__real lp_coeff[], unsigned blocksize, unsigned subframe_bps, unsigned order, unsigned qlp_coeff_precision, unsigned rice_parameter, unsigned min_partition_order, unsigned max_partition_order, FLAC__bool precompute_partition_sums, FLAC__bool do_escape_coding, unsigned rice_parameter_search_dist, FLAC__Subframe *subframe);
-static unsigned stream_encoder_evaluate_verbatim_subframe_(const FLAC__int32 signal[], unsigned blocksize, unsigned subframe_bps, FLAC__Subframe *subframe);
-static unsigned stream_encoder_find_best_partition_order_(struct FLAC__StreamEncoderPrivate *private_, const FLAC__int32 residual[], FLAC__uint32 abs_residual[], FLAC__uint64 abs_residual_partition_sums[], unsigned raw_bits_per_partition[], unsigned residual_samples, unsigned predictor_order, unsigned rice_parameter, unsigned min_partition_order, unsigned max_partition_order, FLAC__bool precompute_partition_sums, FLAC__bool do_escape_coding, unsigned rice_parameter_search_dist, unsigned *best_partition_order, unsigned best_parameters[], unsigned best_raw_bits[]);
-static void stream_encoder_precompute_partition_info_sums_(const FLAC__uint32 abs_residual[], FLAC__uint64 abs_residual_partition_sums[], unsigned residual_samples, unsigned predictor_order, unsigned min_partition_order, unsigned max_partition_order);
-static void stream_encoder_precompute_partition_info_escapes_(const FLAC__int32 residual[], unsigned raw_bits_per_partition[], unsigned residual_samples, unsigned predictor_order, unsigned min_partition_order, unsigned max_partition_order);
+static void set_defaults_(FLAC__StreamEncoder *encoder);
+static void free_(FLAC__StreamEncoder *encoder);
+static FLAC__bool resize_buffers_(FLAC__StreamEncoder *encoder, unsigned new_size);
+static FLAC__bool process_frame_(FLAC__StreamEncoder *encoder, FLAC__bool is_last_frame);
+static FLAC__bool process_subframes_(FLAC__StreamEncoder *encoder, FLAC__bool is_last_frame);
+static FLAC__bool process_subframe_(FLAC__StreamEncoder *encoder, unsigned min_partition_order, unsigned max_partition_order, FLAC__bool precompute_partition_sums, FLAC__bool verbatim_only, const FLAC__FrameHeader *frame_header, unsigned subframe_bps, const FLAC__int32 integer_signal[], const FLAC__real real_signal[], FLAC__Subframe *subframe[2], FLAC__int32 *residual[2], unsigned *best_subframe, unsigned *best_bits);
+static FLAC__bool add_subframe_(FLAC__StreamEncoder *encoder, const FLAC__FrameHeader *frame_header, unsigned subframe_bps, const FLAC__Subframe *subframe, FLAC__BitBuffer *frame);
+static unsigned evaluate_constant_subframe_(const FLAC__int32 signal, unsigned subframe_bps, FLAC__Subframe *subframe);
+static unsigned evaluate_fixed_subframe_(FLAC__StreamEncoder *encoder, const FLAC__int32 signal[], FLAC__int32 residual[], FLAC__uint32 abs_residual[], FLAC__uint64 abs_residual_partition_sums[], unsigned raw_bits_per_partition[], unsigned blocksize, unsigned subframe_bps, unsigned order, unsigned rice_parameter, unsigned min_partition_order, unsigned max_partition_order, FLAC__bool precompute_partition_sums, FLAC__bool do_escape_coding, unsigned rice_parameter_search_dist, FLAC__Subframe *subframe);
+static unsigned evaluate_lpc_subframe_(FLAC__StreamEncoder *encoder, const FLAC__int32 signal[], FLAC__int32 residual[], FLAC__uint32 abs_residual[], FLAC__uint64 abs_residual_partition_sums[], unsigned raw_bits_per_partition[], const FLAC__real lp_coeff[], unsigned blocksize, unsigned subframe_bps, unsigned order, unsigned qlp_coeff_precision, unsigned rice_parameter, unsigned min_partition_order, unsigned max_partition_order, FLAC__bool precompute_partition_sums, FLAC__bool do_escape_coding, unsigned rice_parameter_search_dist, FLAC__Subframe *subframe);
+static unsigned evaluate_verbatim_subframe_(const FLAC__int32 signal[], unsigned blocksize, unsigned subframe_bps, FLAC__Subframe *subframe);
+static unsigned find_best_partition_order_(struct FLAC__StreamEncoderPrivate *private_, const FLAC__int32 residual[], FLAC__uint32 abs_residual[], FLAC__uint64 abs_residual_partition_sums[], unsigned raw_bits_per_partition[], unsigned residual_samples, unsigned predictor_order, unsigned rice_parameter, unsigned min_partition_order, unsigned max_partition_order, FLAC__bool precompute_partition_sums, FLAC__bool do_escape_coding, unsigned rice_parameter_search_dist, unsigned *best_partition_order, unsigned best_parameters[], unsigned best_raw_bits[]);
+static void precompute_partition_info_sums_(const FLAC__uint32 abs_residual[], FLAC__uint64 abs_residual_partition_sums[], unsigned residual_samples, unsigned predictor_order, unsigned min_partition_order, unsigned max_partition_order);
+static void precompute_partition_info_escapes_(const FLAC__int32 residual[], unsigned raw_bits_per_partition[], unsigned residual_samples, unsigned predictor_order, unsigned min_partition_order, unsigned max_partition_order);
#ifdef DONT_ESTIMATE_RICE_BITS
-static FLAC__bool stream_encoder_set_partitioned_rice_(const FLAC__uint32 abs_residual[], const FLAC__int32 residual[], const unsigned residual_samples, const unsigned predictor_order, const unsigned suggested_rice_parameter, const unsigned rice_parameter_search_dist, const unsigned partition_order, unsigned parameters[], unsigned *bits);
-static FLAC__bool stream_encoder_set_partitioned_rice_with_precompute_(const FLAC__int32 residual[], const FLAC__uint64 abs_residual_partition_sums[], const unsigned raw_bits_per_partition[], const unsigned residual_samples, const unsigned predictor_order, const unsigned suggested_rice_parameter, const unsigned rice_parameter_search_dist, const unsigned partition_order, const FLAC__bool search_for_escapes, unsigned parameters[], unsigned raw_bits[], unsigned *bits);
+static FLAC__bool set_partitioned_rice_(const FLAC__uint32 abs_residual[], const FLAC__int32 residual[], const unsigned residual_samples, const unsigned predictor_order, const unsigned suggested_rice_parameter, const unsigned rice_parameter_search_dist, const unsigned partition_order, unsigned parameters[], unsigned *bits);
+static FLAC__bool set_partitioned_rice_with_precompute_(const FLAC__int32 residual[], const FLAC__uint64 abs_residual_partition_sums[], const unsigned raw_bits_per_partition[], const unsigned residual_samples, const unsigned predictor_order, const unsigned suggested_rice_parameter, const unsigned rice_parameter_search_dist, const unsigned partition_order, const FLAC__bool search_for_escapes, unsigned parameters[], unsigned raw_bits[], unsigned *bits);
#else
-static FLAC__bool stream_encoder_set_partitioned_rice_(const FLAC__uint32 abs_residual[], const unsigned residual_samples, const unsigned predictor_order, const unsigned suggested_rice_parameter, const unsigned rice_parameter_search_dist, const unsigned partition_order, unsigned parameters[], unsigned *bits);
-static FLAC__bool stream_encoder_set_partitioned_rice_with_precompute_(const FLAC__uint32 abs_residual[], const FLAC__uint64 abs_residual_partition_sums[], const unsigned raw_bits_per_partition[], const unsigned residual_samples, const unsigned predictor_order, const unsigned suggested_rice_parameter, const unsigned rice_parameter_search_dist, const unsigned partition_order, const FLAC__bool search_for_escapes, unsigned parameters[], unsigned raw_bits[], unsigned *bits);
+static FLAC__bool set_partitioned_rice_(const FLAC__uint32 abs_residual[], const unsigned residual_samples, const unsigned predictor_order, const unsigned suggested_rice_parameter, const unsigned rice_parameter_search_dist, const unsigned partition_order, unsigned parameters[], unsigned *bits);
+static FLAC__bool set_partitioned_rice_with_precompute_(const FLAC__uint32 abs_residual[], const FLAC__uint64 abs_residual_partition_sums[], const unsigned raw_bits_per_partition[], const unsigned residual_samples, const unsigned predictor_order, const unsigned suggested_rice_parameter, const unsigned rice_parameter_search_dist, const unsigned partition_order, const FLAC__bool search_for_escapes, unsigned parameters[], unsigned raw_bits[], unsigned *bits);
#endif
-static unsigned stream_encoder_get_wasted_bits_(FLAC__int32 signal[], unsigned samples);
+static unsigned get_wasted_bits_(FLAC__int32 signal[], unsigned samples);
/***********************************************************************
*
* These fields have been moved here from private function local
* declarations merely to save stack space during encoding.
*/
- FLAC__real lp_coeff[FLAC__MAX_LPC_ORDER][FLAC__MAX_LPC_ORDER]; /* from stream_encoder_process_subframe_() */
- unsigned parameters[2][1 << FLAC__MAX_RICE_PARTITION_ORDER], raw_bits[2][1 << FLAC__MAX_RICE_PARTITION_ORDER]; /* from stream_encoder_find_best_partition_order_() */
+ FLAC__real lp_coeff[FLAC__MAX_LPC_ORDER][FLAC__MAX_LPC_ORDER]; /* from process_subframe_() */
+ unsigned parameters[2][1 << FLAC__MAX_RICE_PARTITION_ORDER], raw_bits[2][1 << FLAC__MAX_RICE_PARTITION_ORDER]; /* from find_best_partition_order_() */
} FLAC__StreamEncoderPrivate;
/***********************************************************************
return 0;
}
- stream_encoder_set_defaults_(encoder);
+ set_defaults_(encoder);
encoder->protected_->state = FLAC__STREAM_ENCODER_UNINITIALIZED;
void FLAC__stream_encoder_delete(FLAC__StreamEncoder *encoder)
{
- FLAC__ASSERT(encoder != 0);
- FLAC__ASSERT(encoder->protected_ != 0);
- FLAC__ASSERT(encoder->private_ != 0);
- FLAC__ASSERT(encoder->private_->frame != 0);
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->protected_);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->private_->frame);
- stream_encoder_free_(encoder);
+ free_(encoder);
FLAC__bitbuffer_delete(encoder->private_->frame);
free(encoder->private_);
free(encoder->protected_);
{
unsigned i;
- FLAC__ASSERT(encoder != 0);
+ FLAC__ASSERT(0 != encoder);
if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
return encoder->protected_->state = FLAC__STREAM_ENCODER_ALREADY_INITIALIZED;
/* we require precompute_partition_sums if do_escape_coding because of their intertwined nature */
encoder->private_->precompute_partition_sums = (encoder->protected_->max_residual_partition_order > encoder->protected_->min_residual_partition_order) || encoder->protected_->do_escape_coding;
- if(!stream_encoder_resize_buffers_(encoder, encoder->protected_->blocksize)) {
+ if(!resize_buffers_(encoder, encoder->protected_->blocksize)) {
/* the above function sets the state for us in case of an error */
return encoder->protected_->state;
}
{
unsigned i, channel;
- FLAC__ASSERT(encoder != 0);
+ FLAC__ASSERT(0 != encoder);
if(encoder->protected_->state == FLAC__STREAM_ENCODER_UNINITIALIZED)
return;
if(encoder->private_->current_sample_number != 0) {
encoder->protected_->blocksize = encoder->private_->current_sample_number;
- stream_encoder_process_frame_(encoder, true); /* true => is last frame */
+ process_frame_(encoder, true); /* true => is last frame */
}
MD5Final(encoder->private_->metadata.data.stream_info.md5sum, &encoder->private_->md5context);
encoder->private_->metadata_callback(encoder, &encoder->private_->metadata, encoder->private_->client_data);
- stream_encoder_free_(encoder);
- stream_encoder_set_defaults_(encoder);
+ free_(encoder);
+ set_defaults_(encoder);
encoder->protected_->state = FLAC__STREAM_ENCODER_UNINITIALIZED;
}
FLAC__int32 x, mid, side;
const unsigned channels = encoder->protected_->channels, blocksize = encoder->protected_->blocksize;
- FLAC__ASSERT(encoder != 0);
+ FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(encoder->protected_->state == FLAC__STREAM_ENCODER_OK);
j = 0;
encoder->private_->current_sample_number++;
}
if(i == blocksize) {
- if(!stream_encoder_process_frame_(encoder, false)) /* false => not last frame */
+ if(!process_frame_(encoder, false)) /* false => not last frame */
return false;
}
} while(j < samples);
encoder->private_->current_sample_number++;
}
if(i == blocksize) {
- if(!stream_encoder_process_frame_(encoder, false)) /* false => not last frame */
+ if(!process_frame_(encoder, false)) /* false => not last frame */
return false;
}
} while(j < samples);
FLAC__int32 x, mid, side;
const unsigned channels = encoder->protected_->channels, blocksize = encoder->protected_->blocksize;
- FLAC__ASSERT(encoder != 0);
+ FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(encoder->protected_->state == FLAC__STREAM_ENCODER_OK);
j = k = 0;
encoder->private_->current_sample_number++;
}
if(i == blocksize) {
- if(!stream_encoder_process_frame_(encoder, false)) /* false => not last frame */
+ if(!process_frame_(encoder, false)) /* false => not last frame */
return false;
}
} while(j < samples);
encoder->private_->current_sample_number++;
}
if(i == blocksize) {
- if(!stream_encoder_process_frame_(encoder, false)) /* false => not last frame */
+ if(!process_frame_(encoder, false)) /* false => not last frame */
return false;
}
} while(j < samples);
return true;
}
-void stream_encoder_set_defaults_(FLAC__StreamEncoder *encoder)
+/***********************************************************************
+ *
+ * Private class methods
+ *
+ ***********************************************************************/
+
+void set_defaults_(FLAC__StreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
encoder->private_->client_data = 0;
}
-void stream_encoder_free_(FLAC__StreamEncoder *encoder)
+void free_(FLAC__StreamEncoder *encoder)
{
unsigned i, channel;
- FLAC__ASSERT(encoder != 0);
+ FLAC__ASSERT(0 != encoder);
for(i = 0; i < encoder->protected_->channels; i++) {
- if(encoder->private_->integer_signal_unaligned[i] != 0) {
+ if(0 != encoder->private_->integer_signal_unaligned[i]) {
free(encoder->private_->integer_signal_unaligned[i]);
encoder->private_->integer_signal_unaligned[i] = 0;
}
- if(encoder->private_->real_signal_unaligned[i] != 0) {
+ if(0 != encoder->private_->real_signal_unaligned[i]) {
free(encoder->private_->real_signal_unaligned[i]);
encoder->private_->real_signal_unaligned[i] = 0;
}
}
for(i = 0; i < 2; i++) {
- if(encoder->private_->integer_signal_mid_side_unaligned[i] != 0) {
+ if(0 != encoder->private_->integer_signal_mid_side_unaligned[i]) {
free(encoder->private_->integer_signal_mid_side_unaligned[i]);
encoder->private_->integer_signal_mid_side_unaligned[i] = 0;
}
- if(encoder->private_->real_signal_mid_side_unaligned[i] != 0) {
+ if(0 != encoder->private_->real_signal_mid_side_unaligned[i]) {
free(encoder->private_->real_signal_mid_side_unaligned[i]);
encoder->private_->real_signal_mid_side_unaligned[i] = 0;
}
}
for(channel = 0; channel < encoder->protected_->channels; channel++) {
for(i = 0; i < 2; i++) {
- if(encoder->private_->residual_workspace_unaligned[channel][i] != 0) {
+ if(0 != encoder->private_->residual_workspace_unaligned[channel][i]) {
free(encoder->private_->residual_workspace_unaligned[channel][i]);
encoder->private_->residual_workspace_unaligned[channel][i] = 0;
}
}
for(channel = 0; channel < 2; channel++) {
for(i = 0; i < 2; i++) {
- if(encoder->private_->residual_workspace_mid_side_unaligned[channel][i] != 0) {
+ if(0 != encoder->private_->residual_workspace_mid_side_unaligned[channel][i]) {
free(encoder->private_->residual_workspace_mid_side_unaligned[channel][i]);
encoder->private_->residual_workspace_mid_side_unaligned[channel][i] = 0;
}
}
}
- if(encoder->private_->abs_residual_unaligned != 0) {
+ if(0 != encoder->private_->abs_residual_unaligned) {
free(encoder->private_->abs_residual_unaligned);
encoder->private_->abs_residual_unaligned = 0;
}
- if(encoder->private_->abs_residual_partition_sums_unaligned != 0) {
+ if(0 != encoder->private_->abs_residual_partition_sums_unaligned) {
free(encoder->private_->abs_residual_partition_sums_unaligned);
encoder->private_->abs_residual_partition_sums_unaligned = 0;
}
- if(encoder->private_->raw_bits_per_partition_unaligned != 0) {
+ if(0 != encoder->private_->raw_bits_per_partition_unaligned) {
free(encoder->private_->raw_bits_per_partition_unaligned);
encoder->private_->raw_bits_per_partition_unaligned = 0;
}
FLAC__bitbuffer_free(encoder->private_->frame);
}
-FLAC__bool stream_encoder_resize_buffers_(FLAC__StreamEncoder *encoder, unsigned new_size)
+FLAC__bool resize_buffers_(FLAC__StreamEncoder *encoder, unsigned new_size)
{
FLAC__bool ok;
unsigned i, channel;
return ok;
}
-/***********************************************************************
- *
- * Private class methods
- *
- ***********************************************************************/
-
-FLAC__bool stream_encoder_process_frame_(FLAC__StreamEncoder *encoder, FLAC__bool is_last_frame)
+FLAC__bool process_frame_(FLAC__StreamEncoder *encoder, FLAC__bool is_last_frame)
{
const FLAC__byte *buffer;
unsigned bytes;
/*
* Process the frame header and subframes into the frame bitbuffer
*/
- if(!stream_encoder_process_subframes_(encoder, is_last_frame)) {
+ if(!process_subframes_(encoder, is_last_frame)) {
/* the above function sets the state for us in case of an error */
return false;
}
return true;
}
-FLAC__bool stream_encoder_process_subframes_(FLAC__StreamEncoder *encoder, FLAC__bool is_last_frame)
+FLAC__bool process_subframes_(FLAC__StreamEncoder *encoder, FLAC__bool is_last_frame)
{
FLAC__FrameHeader frame_header;
unsigned channel, min_partition_order = encoder->protected_->min_residual_partition_order, max_partition_order;
if(do_independent) {
unsigned w;
for(channel = 0; channel < encoder->protected_->channels; channel++) {
- w = stream_encoder_get_wasted_bits_(encoder->private_->integer_signal[channel], encoder->protected_->blocksize);
+ w = get_wasted_bits_(encoder->private_->integer_signal[channel], encoder->protected_->blocksize);
encoder->private_->subframe_workspace[channel][0].wasted_bits = encoder->private_->subframe_workspace[channel][1].wasted_bits = w;
encoder->private_->subframe_bps[channel] = encoder->protected_->bits_per_sample - w;
}
unsigned w;
FLAC__ASSERT(encoder->protected_->channels == 2);
for(channel = 0; channel < 2; channel++) {
- w = stream_encoder_get_wasted_bits_(encoder->private_->integer_signal_mid_side[channel], encoder->protected_->blocksize);
+ w = get_wasted_bits_(encoder->private_->integer_signal_mid_side[channel], encoder->protected_->blocksize);
encoder->private_->subframe_workspace_mid_side[channel][0].wasted_bits = encoder->private_->subframe_workspace_mid_side[channel][1].wasted_bits = w;
encoder->private_->subframe_bps_mid_side[channel] = encoder->protected_->bits_per_sample - w + (channel==0? 0:1);
}
*/
if(do_independent) {
for(channel = 0; channel < encoder->protected_->channels; channel++) {
- if(!stream_encoder_process_subframe_(encoder, min_partition_order, max_partition_order, precompute_partition_sums, false, &frame_header, encoder->private_->subframe_bps[channel], encoder->private_->integer_signal[channel], encoder->private_->real_signal[channel], encoder->private_->subframe_workspace_ptr[channel], encoder->private_->residual_workspace[channel], encoder->private_->best_subframe+channel, encoder->private_->best_subframe_bits+channel))
+ if(!process_subframe_(encoder, min_partition_order, max_partition_order, precompute_partition_sums, false, &frame_header, encoder->private_->subframe_bps[channel], encoder->private_->integer_signal[channel], encoder->private_->real_signal[channel], encoder->private_->subframe_workspace_ptr[channel], encoder->private_->residual_workspace[channel], encoder->private_->best_subframe+channel, encoder->private_->best_subframe_bits+channel))
return false;
}
}
FLAC__ASSERT(encoder->protected_->channels == 2);
for(channel = 0; channel < 2; channel++) {
- if(!stream_encoder_process_subframe_(encoder, min_partition_order, max_partition_order, precompute_partition_sums, false, &frame_header, encoder->private_->subframe_bps_mid_side[channel], encoder->private_->integer_signal_mid_side[channel], encoder->private_->real_signal_mid_side[channel], encoder->private_->subframe_workspace_ptr_mid_side[channel], encoder->private_->residual_workspace_mid_side[channel], encoder->private_->best_subframe_mid_side+channel, encoder->private_->best_subframe_bits_mid_side+channel))
+ if(!process_subframe_(encoder, min_partition_order, max_partition_order, precompute_partition_sums, false, &frame_header, encoder->private_->subframe_bps_mid_side[channel], encoder->private_->integer_signal_mid_side[channel], encoder->private_->real_signal_mid_side[channel], encoder->private_->subframe_workspace_ptr_mid_side[channel], encoder->private_->residual_workspace_mid_side[channel], encoder->private_->best_subframe_mid_side+channel, encoder->private_->best_subframe_bits_mid_side+channel))
return false;
}
}
}
/* note that encoder_add_subframe_ sets the state for us in case of an error */
- if(!stream_encoder_add_subframe_(encoder, &frame_header, left_bps , left_subframe , encoder->private_->frame))
+ if(!add_subframe_(encoder, &frame_header, left_bps , left_subframe , encoder->private_->frame))
return false;
- if(!stream_encoder_add_subframe_(encoder, &frame_header, right_bps, right_subframe, encoder->private_->frame))
+ if(!add_subframe_(encoder, &frame_header, right_bps, right_subframe, encoder->private_->frame))
return false;
}
else {
}
for(channel = 0; channel < encoder->protected_->channels; channel++) {
- if(!stream_encoder_add_subframe_(encoder, &frame_header, encoder->private_->subframe_bps[channel], &encoder->private_->subframe_workspace[channel][encoder->private_->best_subframe[channel]], encoder->private_->frame)) {
+ if(!add_subframe_(encoder, &frame_header, encoder->private_->subframe_bps[channel], &encoder->private_->subframe_workspace[channel][encoder->private_->best_subframe[channel]], encoder->private_->frame)) {
/* the above function sets the state for us in case of an error */
return false;
}
return true;
}
-FLAC__bool stream_encoder_process_subframe_(FLAC__StreamEncoder *encoder, unsigned min_partition_order, unsigned max_partition_order, FLAC__bool precompute_partition_sums, FLAC__bool verbatim_only, const FLAC__FrameHeader *frame_header, unsigned subframe_bps, const FLAC__int32 integer_signal[], const FLAC__real real_signal[], FLAC__Subframe *subframe[2], FLAC__int32 *residual[2], unsigned *best_subframe, unsigned *best_bits)
+FLAC__bool process_subframe_(FLAC__StreamEncoder *encoder, unsigned min_partition_order, unsigned max_partition_order, FLAC__bool precompute_partition_sums, FLAC__bool verbatim_only, const FLAC__FrameHeader *frame_header, unsigned subframe_bps, const FLAC__int32 integer_signal[], const FLAC__real real_signal[], FLAC__Subframe *subframe[2], FLAC__int32 *residual[2], unsigned *best_subframe, unsigned *best_bits)
{
FLAC__real fixed_residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1];
FLAC__real lpc_residual_bits_per_sample;
/* verbatim subframe is the baseline against which we measure other compressed subframes */
_best_subframe = 0;
- _best_bits = stream_encoder_evaluate_verbatim_subframe_(integer_signal, frame_header->blocksize, subframe_bps, subframe[_best_subframe]);
+ _best_bits = evaluate_verbatim_subframe_(integer_signal, frame_header->blocksize, subframe_bps, subframe[_best_subframe]);
if(!verbatim_only && frame_header->blocksize >= FLAC__MAX_FIXED_ORDER) {
/* check for constant subframe */
}
}
if(signal_is_constant) {
- _candidate_bits = stream_encoder_evaluate_constant_subframe_(integer_signal[0], subframe_bps, subframe[!_best_subframe]);
+ _candidate_bits = evaluate_constant_subframe_(integer_signal[0], subframe_bps, subframe[!_best_subframe]);
if(_candidate_bits < _best_bits) {
_best_subframe = !_best_subframe;
_best_bits = _candidate_bits;
#endif
rice_parameter = FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_ESCAPE_PARAMETER - 1;
}
- _candidate_bits = stream_encoder_evaluate_fixed_subframe_(encoder, integer_signal, residual[!_best_subframe], encoder->private_->abs_residual, encoder->private_->abs_residual_partition_sums, encoder->private_->raw_bits_per_partition, frame_header->blocksize, subframe_bps, fixed_order, rice_parameter, min_partition_order, max_partition_order, precompute_partition_sums, encoder->protected_->do_escape_coding, encoder->protected_->rice_parameter_search_dist, subframe[!_best_subframe]);
+ _candidate_bits = evaluate_fixed_subframe_(encoder, integer_signal, residual[!_best_subframe], encoder->private_->abs_residual, encoder->private_->abs_residual_partition_sums, encoder->private_->raw_bits_per_partition, frame_header->blocksize, subframe_bps, fixed_order, rice_parameter, min_partition_order, max_partition_order, precompute_partition_sums, encoder->protected_->do_escape_coding, encoder->protected_->rice_parameter_search_dist, subframe[!_best_subframe]);
if(_candidate_bits < _best_bits) {
_best_subframe = !_best_subframe;
_best_bits = _candidate_bits;
rice_parameter = FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_ESCAPE_PARAMETER - 1;
}
for(qlp_coeff_precision = min_qlp_coeff_precision; qlp_coeff_precision <= max_qlp_coeff_precision; qlp_coeff_precision++) {
- _candidate_bits = stream_encoder_evaluate_lpc_subframe_(encoder, integer_signal, residual[!_best_subframe], encoder->private_->abs_residual, encoder->private_->abs_residual_partition_sums, encoder->private_->raw_bits_per_partition, encoder->private_->lp_coeff[lpc_order-1], frame_header->blocksize, subframe_bps, lpc_order, qlp_coeff_precision, rice_parameter, min_partition_order, max_partition_order, precompute_partition_sums, encoder->protected_->do_escape_coding, encoder->protected_->rice_parameter_search_dist, subframe[!_best_subframe]);
+ _candidate_bits = evaluate_lpc_subframe_(encoder, integer_signal, residual[!_best_subframe], encoder->private_->abs_residual, encoder->private_->abs_residual_partition_sums, encoder->private_->raw_bits_per_partition, encoder->private_->lp_coeff[lpc_order-1], frame_header->blocksize, subframe_bps, lpc_order, qlp_coeff_precision, rice_parameter, min_partition_order, max_partition_order, precompute_partition_sums, encoder->protected_->do_escape_coding, encoder->protected_->rice_parameter_search_dist, subframe[!_best_subframe]);
if(_candidate_bits > 0) { /* if == 0, there was a problem quantizing the lpcoeffs */
if(_candidate_bits < _best_bits) {
_best_subframe = !_best_subframe;
return true;
}
-FLAC__bool stream_encoder_add_subframe_(FLAC__StreamEncoder *encoder, const FLAC__FrameHeader *frame_header, unsigned subframe_bps, const FLAC__Subframe *subframe, FLAC__BitBuffer *frame)
+FLAC__bool add_subframe_(FLAC__StreamEncoder *encoder, const FLAC__FrameHeader *frame_header, unsigned subframe_bps, const FLAC__Subframe *subframe, FLAC__BitBuffer *frame)
{
switch(subframe->type) {
case FLAC__SUBFRAME_TYPE_CONSTANT:
return true;
}
-unsigned stream_encoder_evaluate_constant_subframe_(const FLAC__int32 signal, unsigned subframe_bps, FLAC__Subframe *subframe)
+unsigned evaluate_constant_subframe_(const FLAC__int32 signal, unsigned subframe_bps, FLAC__Subframe *subframe)
{
subframe->type = FLAC__SUBFRAME_TYPE_CONSTANT;
subframe->data.constant.value = signal;
return FLAC__SUBFRAME_ZERO_PAD_LEN + FLAC__SUBFRAME_TYPE_LEN + FLAC__SUBFRAME_WASTED_BITS_FLAG_LEN + subframe_bps;
}
-unsigned stream_encoder_evaluate_fixed_subframe_(FLAC__StreamEncoder *encoder, const FLAC__int32 signal[], FLAC__int32 residual[], FLAC__uint32 abs_residual[], FLAC__uint64 abs_residual_partition_sums[], unsigned raw_bits_per_partition[], unsigned blocksize, unsigned subframe_bps, unsigned order, unsigned rice_parameter, unsigned min_partition_order, unsigned max_partition_order, FLAC__bool precompute_partition_sums, FLAC__bool do_escape_coding, unsigned rice_parameter_search_dist, FLAC__Subframe *subframe)
+unsigned evaluate_fixed_subframe_(FLAC__StreamEncoder *encoder, const FLAC__int32 signal[], FLAC__int32 residual[], FLAC__uint32 abs_residual[], FLAC__uint64 abs_residual_partition_sums[], unsigned raw_bits_per_partition[], unsigned blocksize, unsigned subframe_bps, unsigned order, unsigned rice_parameter, unsigned min_partition_order, unsigned max_partition_order, FLAC__bool precompute_partition_sums, FLAC__bool do_escape_coding, unsigned rice_parameter_search_dist, FLAC__Subframe *subframe)
{
unsigned i, residual_bits;
const unsigned residual_samples = blocksize - order;
subframe->data.fixed.entropy_coding_method.type = FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE;
subframe->data.fixed.residual = residual;
- residual_bits = stream_encoder_find_best_partition_order_(encoder->private_, residual, abs_residual, abs_residual_partition_sums, raw_bits_per_partition, residual_samples, order, rice_parameter, min_partition_order, max_partition_order, precompute_partition_sums, do_escape_coding, rice_parameter_search_dist, &subframe->data.fixed.entropy_coding_method.data.partitioned_rice.order, subframe->data.fixed.entropy_coding_method.data.partitioned_rice.parameters, subframe->data.fixed.entropy_coding_method.data.partitioned_rice.raw_bits);
+ residual_bits = find_best_partition_order_(encoder->private_, residual, abs_residual, abs_residual_partition_sums, raw_bits_per_partition, residual_samples, order, rice_parameter, min_partition_order, max_partition_order, precompute_partition_sums, do_escape_coding, rice_parameter_search_dist, &subframe->data.fixed.entropy_coding_method.data.partitioned_rice.order, subframe->data.fixed.entropy_coding_method.data.partitioned_rice.parameters, subframe->data.fixed.entropy_coding_method.data.partitioned_rice.raw_bits);
subframe->data.fixed.order = order;
for(i = 0; i < order; i++)
return FLAC__SUBFRAME_ZERO_PAD_LEN + FLAC__SUBFRAME_TYPE_LEN + FLAC__SUBFRAME_WASTED_BITS_FLAG_LEN + (order * subframe_bps) + residual_bits;
}
-unsigned stream_encoder_evaluate_lpc_subframe_(FLAC__StreamEncoder *encoder, const FLAC__int32 signal[], FLAC__int32 residual[], FLAC__uint32 abs_residual[], FLAC__uint64 abs_residual_partition_sums[], unsigned raw_bits_per_partition[], const FLAC__real lp_coeff[], unsigned blocksize, unsigned subframe_bps, unsigned order, unsigned qlp_coeff_precision, unsigned rice_parameter, unsigned min_partition_order, unsigned max_partition_order, FLAC__bool precompute_partition_sums, FLAC__bool do_escape_coding, unsigned rice_parameter_search_dist, FLAC__Subframe *subframe)
+unsigned evaluate_lpc_subframe_(FLAC__StreamEncoder *encoder, const FLAC__int32 signal[], FLAC__int32 residual[], FLAC__uint32 abs_residual[], FLAC__uint64 abs_residual_partition_sums[], unsigned raw_bits_per_partition[], const FLAC__real lp_coeff[], unsigned blocksize, unsigned subframe_bps, unsigned order, unsigned qlp_coeff_precision, unsigned rice_parameter, unsigned min_partition_order, unsigned max_partition_order, FLAC__bool precompute_partition_sums, FLAC__bool do_escape_coding, unsigned rice_parameter_search_dist, FLAC__Subframe *subframe)
{
FLAC__int32 qlp_coeff[FLAC__MAX_LPC_ORDER];
unsigned i, residual_bits;
subframe->data.lpc.entropy_coding_method.type = FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE;
subframe->data.lpc.residual = residual;
- residual_bits = stream_encoder_find_best_partition_order_(encoder->private_, residual, abs_residual, abs_residual_partition_sums, raw_bits_per_partition, residual_samples, order, rice_parameter, min_partition_order, max_partition_order, precompute_partition_sums, do_escape_coding, rice_parameter_search_dist, &subframe->data.lpc.entropy_coding_method.data.partitioned_rice.order, subframe->data.lpc.entropy_coding_method.data.partitioned_rice.parameters, subframe->data.lpc.entropy_coding_method.data.partitioned_rice.raw_bits);
+ residual_bits = find_best_partition_order_(encoder->private_, residual, abs_residual, abs_residual_partition_sums, raw_bits_per_partition, residual_samples, order, rice_parameter, min_partition_order, max_partition_order, precompute_partition_sums, do_escape_coding, rice_parameter_search_dist, &subframe->data.lpc.entropy_coding_method.data.partitioned_rice.order, subframe->data.lpc.entropy_coding_method.data.partitioned_rice.parameters, subframe->data.lpc.entropy_coding_method.data.partitioned_rice.raw_bits);
subframe->data.lpc.order = order;
subframe->data.lpc.qlp_coeff_precision = qlp_coeff_precision;
return FLAC__SUBFRAME_ZERO_PAD_LEN + FLAC__SUBFRAME_TYPE_LEN + FLAC__SUBFRAME_WASTED_BITS_FLAG_LEN + FLAC__SUBFRAME_LPC_QLP_COEFF_PRECISION_LEN + FLAC__SUBFRAME_LPC_QLP_SHIFT_LEN + (order * (qlp_coeff_precision + subframe_bps)) + residual_bits;
}
-unsigned stream_encoder_evaluate_verbatim_subframe_(const FLAC__int32 signal[], unsigned blocksize, unsigned subframe_bps, FLAC__Subframe *subframe)
+unsigned evaluate_verbatim_subframe_(const FLAC__int32 signal[], unsigned blocksize, unsigned subframe_bps, FLAC__Subframe *subframe)
{
subframe->type = FLAC__SUBFRAME_TYPE_VERBATIM;
return FLAC__SUBFRAME_ZERO_PAD_LEN + FLAC__SUBFRAME_TYPE_LEN + FLAC__SUBFRAME_WASTED_BITS_FLAG_LEN + (blocksize * subframe_bps);
}
-unsigned stream_encoder_find_best_partition_order_(FLAC__StreamEncoderPrivate *private_, const FLAC__int32 residual[], FLAC__uint32 abs_residual[], FLAC__uint64 abs_residual_partition_sums[], unsigned raw_bits_per_partition[], unsigned residual_samples, unsigned predictor_order, unsigned rice_parameter, unsigned min_partition_order, unsigned max_partition_order, FLAC__bool precompute_partition_sums, FLAC__bool do_escape_coding, unsigned rice_parameter_search_dist, unsigned *best_partition_order, unsigned best_parameters[], unsigned best_raw_bits[])
+unsigned find_best_partition_order_(FLAC__StreamEncoderPrivate *private_, const FLAC__int32 residual[], FLAC__uint32 abs_residual[], FLAC__uint64 abs_residual_partition_sums[], unsigned raw_bits_per_partition[], unsigned residual_samples, unsigned predictor_order, unsigned rice_parameter, unsigned min_partition_order, unsigned max_partition_order, FLAC__bool precompute_partition_sums, FLAC__bool do_escape_coding, unsigned rice_parameter_search_dist, unsigned *best_partition_order, unsigned best_parameters[], unsigned best_raw_bits[])
{
FLAC__int32 r;
unsigned residual_bits, best_residual_bits = 0;
int partition_order;
unsigned sum;
- stream_encoder_precompute_partition_info_sums_(abs_residual, abs_residual_partition_sums, residual_samples, predictor_order, min_partition_order, max_partition_order);
+ precompute_partition_info_sums_(abs_residual, abs_residual_partition_sums, residual_samples, predictor_order, min_partition_order, max_partition_order);
if(do_escape_coding)
- stream_encoder_precompute_partition_info_escapes_(residual, raw_bits_per_partition, residual_samples, predictor_order, min_partition_order, max_partition_order);
+ precompute_partition_info_escapes_(residual, raw_bits_per_partition, residual_samples, predictor_order, min_partition_order, max_partition_order);
for(partition_order = (int)max_partition_order, sum = 0; partition_order >= (int)min_partition_order; partition_order--) {
#ifdef DONT_ESTIMATE_RICE_BITS
- if(!stream_encoder_set_partitioned_rice_with_precompute_(residual, abs_residual_partition_sums+sum, raw_bits_per_partition+sum, residual_samples, predictor_order, rice_parameter, rice_parameter_search_dist, (unsigned)partition_order, do_escape_coding, private_->parameters[!best_parameters_index], private_->raw_bits[!best_parameters_index], &residual_bits))
+ if(!set_partitioned_rice_with_precompute_(residual, abs_residual_partition_sums+sum, raw_bits_per_partition+sum, residual_samples, predictor_order, rice_parameter, rice_parameter_search_dist, (unsigned)partition_order, do_escape_coding, private_->parameters[!best_parameters_index], private_->raw_bits[!best_parameters_index], &residual_bits))
#else
- if(!stream_encoder_set_partitioned_rice_with_precompute_(abs_residual, abs_residual_partition_sums+sum, raw_bits_per_partition+sum, residual_samples, predictor_order, rice_parameter, rice_parameter_search_dist, (unsigned)partition_order, do_escape_coding, private_->parameters[!best_parameters_index], private_->raw_bits[!best_parameters_index], &residual_bits))
+ if(!set_partitioned_rice_with_precompute_(abs_residual, abs_residual_partition_sums+sum, raw_bits_per_partition+sum, residual_samples, predictor_order, rice_parameter, rice_parameter_search_dist, (unsigned)partition_order, do_escape_coding, private_->parameters[!best_parameters_index], private_->raw_bits[!best_parameters_index], &residual_bits))
#endif
{
FLAC__ASSERT(best_residual_bits != 0);
unsigned partition_order;
for(partition_order = min_partition_order; partition_order <= max_partition_order; partition_order++) {
#ifdef DONT_ESTIMATE_RICE_BITS
- if(!stream_encoder_set_partitioned_rice_(abs_residual, residual, residual_samples, predictor_order, rice_parameter, rice_parameter_search_dist, partition_order, private_->parameters[!best_parameters_index], &residual_bits))
+ if(!set_partitioned_rice_(abs_residual, residual, residual_samples, predictor_order, rice_parameter, rice_parameter_search_dist, partition_order, private_->parameters[!best_parameters_index], &residual_bits))
#else
- if(!stream_encoder_set_partitioned_rice_(abs_residual, residual_samples, predictor_order, rice_parameter, rice_parameter_search_dist, partition_order, private_->parameters[!best_parameters_index], &residual_bits))
+ if(!set_partitioned_rice_(abs_residual, residual_samples, predictor_order, rice_parameter, rice_parameter_search_dist, partition_order, private_->parameters[!best_parameters_index], &residual_bits))
#endif
{
FLAC__ASSERT(best_residual_bits != 0);
return best_residual_bits;
}
-void stream_encoder_precompute_partition_info_sums_(const FLAC__uint32 abs_residual[], FLAC__uint64 abs_residual_partition_sums[], unsigned residual_samples, unsigned predictor_order, unsigned min_partition_order, unsigned max_partition_order)
+void precompute_partition_info_sums_(const FLAC__uint32 abs_residual[], FLAC__uint64 abs_residual_partition_sums[], unsigned residual_samples, unsigned predictor_order, unsigned min_partition_order, unsigned max_partition_order)
{
int partition_order;
unsigned from_partition, to_partition = 0;
}
}
-void stream_encoder_precompute_partition_info_escapes_(const FLAC__int32 residual[], unsigned raw_bits_per_partition[], unsigned residual_samples, unsigned predictor_order, unsigned min_partition_order, unsigned max_partition_order)
+void precompute_partition_info_escapes_(const FLAC__int32 residual[], unsigned raw_bits_per_partition[], unsigned residual_samples, unsigned predictor_order, unsigned min_partition_order, unsigned max_partition_order)
{
int partition_order;
unsigned from_partition, to_partition = 0;
#endif
#ifdef DONT_ESTIMATE_RICE_BITS
-FLAC__bool stream_encoder_set_partitioned_rice_(const FLAC__uint32 abs_residual[], const FLAC__int32 residual[], const unsigned residual_samples, const unsigned predictor_order, const unsigned suggested_rice_parameter, const unsigned rice_parameter_search_dist, const unsigned partition_order, unsigned parameters[], unsigned *bits)
+FLAC__bool set_partitioned_rice_(const FLAC__uint32 abs_residual[], const FLAC__int32 residual[], const unsigned residual_samples, const unsigned predictor_order, const unsigned suggested_rice_parameter, const unsigned rice_parameter_search_dist, const unsigned partition_order, unsigned parameters[], unsigned *bits)
#else
-FLAC__bool stream_encoder_set_partitioned_rice_(const FLAC__uint32 abs_residual[], const unsigned residual_samples, const unsigned predictor_order, const unsigned suggested_rice_parameter, const unsigned rice_parameter_search_dist, const unsigned partition_order, unsigned parameters[], unsigned *bits)
+FLAC__bool set_partitioned_rice_(const FLAC__uint32 abs_residual[], const unsigned residual_samples, const unsigned predictor_order, const unsigned suggested_rice_parameter, const unsigned rice_parameter_search_dist, const unsigned partition_order, unsigned parameters[], unsigned *bits)
#endif
{
unsigned rice_parameter, partition_bits;
}
#ifdef DONT_ESTIMATE_RICE_BITS
-FLAC__bool stream_encoder_set_partitioned_rice_with_precompute_(const FLAC__int32 residual[], const FLAC__uint64 abs_residual_partition_sums[], const unsigned raw_bits_per_partition[], const unsigned residual_samples, const unsigned predictor_order, const unsigned suggested_rice_parameter, const unsigned rice_parameter_search_dist, const unsigned partition_order, const FLAC__bool search_for_escapes, unsigned parameters[], unsigned raw_bits[], unsigned *bits)
+FLAC__bool set_partitioned_rice_with_precompute_(const FLAC__int32 residual[], const FLAC__uint64 abs_residual_partition_sums[], const unsigned raw_bits_per_partition[], const unsigned residual_samples, const unsigned predictor_order, const unsigned suggested_rice_parameter, const unsigned rice_parameter_search_dist, const unsigned partition_order, const FLAC__bool search_for_escapes, unsigned parameters[], unsigned raw_bits[], unsigned *bits)
#else
-FLAC__bool stream_encoder_set_partitioned_rice_with_precompute_(const FLAC__uint32 abs_residual[], const FLAC__uint64 abs_residual_partition_sums[], const unsigned raw_bits_per_partition[], const unsigned residual_samples, const unsigned predictor_order, const unsigned suggested_rice_parameter, const unsigned rice_parameter_search_dist, const unsigned partition_order, const FLAC__bool search_for_escapes, unsigned parameters[], unsigned raw_bits[], unsigned *bits)
+FLAC__bool set_partitioned_rice_with_precompute_(const FLAC__uint32 abs_residual[], const FLAC__uint64 abs_residual_partition_sums[], const unsigned raw_bits_per_partition[], const unsigned residual_samples, const unsigned predictor_order, const unsigned suggested_rice_parameter, const unsigned rice_parameter_search_dist, const unsigned partition_order, const FLAC__bool search_for_escapes, unsigned parameters[], unsigned raw_bits[], unsigned *bits)
#endif
{
unsigned rice_parameter, partition_bits;
return true;
}
-unsigned stream_encoder_get_wasted_bits_(FLAC__int32 signal[], unsigned samples)
+unsigned get_wasted_bits_(FLAC__int32 signal[], unsigned samples)
{
unsigned i, shift;
FLAC__int32 x = 0;
#endif
#define max(x,y) ((x)>(y)?(x):(y))
-static FLAC__bool subframe_add_entropy_coding_method_(FLAC__BitBuffer *bb, const FLAC__EntropyCodingMethod *method);
-static FLAC__bool subframe_add_residual_partitioned_rice_(FLAC__BitBuffer *bb, const FLAC__int32 residual[], const unsigned residual_samples, const unsigned predictor_order, const unsigned rice_parameters[], const unsigned raw_bits[], const unsigned partition_order);
+static FLAC__bool add_entropy_coding_method_(FLAC__BitBuffer *bb, const FLAC__EntropyCodingMethod *method);
+static FLAC__bool add_residual_partitioned_rice_(FLAC__BitBuffer *bb, const FLAC__int32 residual[], const unsigned residual_samples, const unsigned predictor_order, const unsigned rice_parameters[], const unsigned raw_bits[], const unsigned partition_order);
FLAC__bool FLAC__add_metadata_block(const FLAC__StreamMetadata *metadata, FLAC__BitBuffer *bb)
{
if(!FLAC__bitbuffer_write_raw_int32(bb, subframe->warmup[i], subframe_bps))
return false;
- if(!subframe_add_entropy_coding_method_(bb, &subframe->entropy_coding_method))
+ if(!add_entropy_coding_method_(bb, &subframe->entropy_coding_method))
return false;
switch(subframe->entropy_coding_method.type) {
case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE:
- if(!subframe_add_residual_partitioned_rice_(bb, subframe->residual, residual_samples, subframe->order, subframe->entropy_coding_method.data.partitioned_rice.parameters, subframe->entropy_coding_method.data.partitioned_rice.raw_bits, subframe->entropy_coding_method.data.partitioned_rice.order))
+ if(!add_residual_partitioned_rice_(bb, subframe->residual, residual_samples, subframe->order, subframe->entropy_coding_method.data.partitioned_rice.parameters, subframe->entropy_coding_method.data.partitioned_rice.raw_bits, subframe->entropy_coding_method.data.partitioned_rice.order))
return false;
break;
default:
if(!FLAC__bitbuffer_write_raw_int32(bb, subframe->qlp_coeff[i], subframe->qlp_coeff_precision))
return false;
- if(!subframe_add_entropy_coding_method_(bb, &subframe->entropy_coding_method))
+ if(!add_entropy_coding_method_(bb, &subframe->entropy_coding_method))
return false;
switch(subframe->entropy_coding_method.type) {
case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE:
- if(!subframe_add_residual_partitioned_rice_(bb, subframe->residual, residual_samples, subframe->order, subframe->entropy_coding_method.data.partitioned_rice.parameters, subframe->entropy_coding_method.data.partitioned_rice.raw_bits, subframe->entropy_coding_method.data.partitioned_rice.order))
+ if(!add_residual_partitioned_rice_(bb, subframe->residual, residual_samples, subframe->order, subframe->entropy_coding_method.data.partitioned_rice.parameters, subframe->entropy_coding_method.data.partitioned_rice.raw_bits, subframe->entropy_coding_method.data.partitioned_rice.order))
return false;
break;
default:
return true;
}
-FLAC__bool subframe_add_entropy_coding_method_(FLAC__BitBuffer *bb, const FLAC__EntropyCodingMethod *method)
+FLAC__bool add_entropy_coding_method_(FLAC__BitBuffer *bb, const FLAC__EntropyCodingMethod *method)
{
if(!FLAC__bitbuffer_write_raw_uint32(bb, method->type, FLAC__ENTROPY_CODING_METHOD_TYPE_LEN))
return false;
return true;
}
-FLAC__bool subframe_add_residual_partitioned_rice_(FLAC__BitBuffer *bb, const FLAC__int32 residual[], const unsigned residual_samples, const unsigned predictor_order, const unsigned rice_parameters[], const unsigned raw_bits[], const unsigned partition_order)
+FLAC__bool add_residual_partitioned_rice_(FLAC__BitBuffer *bb, const FLAC__int32 residual[], const unsigned residual_samples, const unsigned predictor_order, const unsigned rice_parameters[], const unsigned raw_bits[], const unsigned partition_order)
{
if(partition_order == 0) {
unsigned i;
projects / platform / upstream / flac.git / commitdiff