--- /dev/null
+# libOggFLAC - Free Lossless Audio Codec + Ogg 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.
+
+lib_LTLIBRARIES = libOggFLAC.la
+if DEBUG
+DEBUGCFLAGS =
+endif
+CFLAGS = @CFLAGS@ $(DEBUGCFLAGS)
+
+SUBDIRS = $(ARCH_SUBDIRS) include .
+
+m4datadir = $(datadir)/aclocal
+m4data_DATA = libOggFLAC.m4
+
+EXTRA_DIST = \
+ Makefile.lite \
+ Makefile.vc \
+ libOggFLAC.m4
+
+# see 'http://www.gnu.org/software/libtool/manual.html#Versioning' for numbering convention
+libOggFLAC_la_LDFLAGS = -version-info 0:0:0
+
+libOggFLAC_la_SOURCES = \
+ file_decoder.c \
+ seekable_stream_decoder.c \
+ stream_decoder.c \
+ stream_encoder.c
--- /dev/null
+# libOggFLAC - Free Lossless Audio Codec + Ogg library
+# Copyright (C) 2002 Josh Coalson
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Library General Public
+# License as published by the Free Software Foundation; either
+# version 2 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Library General Public License for more details.
+#
+# You should have received a copy of the GNU Library General Public
+# License along with this library; if not, write to the
+# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+# Boston, MA 02111-1307, USA.
+
+#
+# GNU makefile
+#
+
+LIB_NAME = libOggFLAC
+ifeq ($(DARWIN_BUILD),yes)
+DEFINES =
+else
+ifeq ($(SOLARIS_BUILD),yes)
+DEFINES =
+else
+DEFINES =
+endif
+endif
+INCLUDES = -I./include -I../../include
+DEBUG_CFLAGS =
+
+OBJS = \
+ file_decoder.o \
+ seekable_stream_decoder.o \
+ stream_decoder.o \
+ stream_encoder.o
+
+include ../../build/lib.mk
+
+# DO NOT DELETE THIS LINE -- make depend depends on it.
--- /dev/null
+# libOggFLAC - Free Lossless Audio Codec + Ogg library\r
+# Copyright (C) 2002 Josh Coalson\r
+#\r
+# This library is free software; you can redistribute it and/or\r
+# modify it under the terms of the GNU Library General Public\r
+# License as published by the Free Software Foundation; either\r
+# version 2 of the License, or (at your option) any later version.\r
+#\r
+# This library is distributed in the hope that it will be useful,\r
+# but WITHOUT ANY WARRANTY; without even the implied warranty of\r
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\r
+# Library General Public License for more details.\r
+#\r
+# You should have received a copy of the GNU Library General Public\r
+# License along with this library; if not, write to the\r
+# Free Software Foundation, Inc., 59 Temple Place - Suite 330,\r
+# Boston, MA 02111-1307, USA.\r
+\r
+!include <win32.mak>\r
+\r
+!IFDEF DEBUG\r
+.c.obj:\r
+ $(cc) /D "_LIB" /GX $(cdebug) $(cflags) /I ".\include" /I "..\..\include" -DSTRICT -YX /Od /D "_DEBUG" $<\r
+!else\r
+.c.obj:\r
+ $(cc) /D "_LIB" /O2 $(crelease) $(cflags) /I ".\include" /I "..\..\include" -DSTRICT -YX -DNODEBUG $<\r
+!endif\r
+\r
+C_FILES= \\r
+ file_decoder.c \\r
+ seekable_stream_decoder.c \\r
+ stream_decoder.c \\r
+ stream_encoder.c\r
+\r
+OBJS= $(C_FILES:.c=.obj)\r
+\r
+all: libOggFLAC.lib\r
+\r
+libOggFLAC.lib: $(OBJS)\r
+ link.exe -lib /nodefaultlib -out:../../obj/lib/$*.lib $(OBJS)\r
+\r
+clean:\r
+ -del *.obj ia32\*.obj *.pch\r
+ -del ..\..\obj\lib\libOggFLAC.lib ..\..\obj\lib\libOggFLAC.pdb\r
--- /dev/null
+/* libOggFLAC - Free Lossless Audio Codec + Ogg 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 strcmp() */
+#include <sys/stat.h> /* for stat() */
+#if defined _MSC_VER || defined __MINGW32__
+#include <io.h> /* for _setmode() */
+#include <fcntl.h> /* for _O_BINARY */
+#elif defined __CYGWIN__
+#include <io.h> /* for _setmode(), O_BINARY */
+#endif
+#include "FLAC/assert.h"
+#include "protected/file_decoder.h"
+#include "protected/seekable_stream_decoder.h"
+#include "private/md5.h"
+
+/***********************************************************************
+ *
+ * Private class method prototypes
+ *
+ ***********************************************************************/
+
+static void set_defaults_(FLAC__FileDecoder *decoder);
+static FILE *get_binary_stdin_();
+static FLAC__SeekableStreamDecoderReadStatus read_callback_(const FLAC__SeekableStreamDecoder *decoder, FLAC__byte buffer[], unsigned *bytes, void *client_data);
+static FLAC__SeekableStreamDecoderSeekStatus seek_callback_(const FLAC__SeekableStreamDecoder *decoder, FLAC__uint64 absolute_byte_offset, void *client_data);
+static FLAC__SeekableStreamDecoderTellStatus tell_callback_(const FLAC__SeekableStreamDecoder *decoder, FLAC__uint64 *absolute_byte_offset, void *client_data);
+static FLAC__SeekableStreamDecoderLengthStatus length_callback_(const FLAC__SeekableStreamDecoder *decoder, FLAC__uint64 *stream_length, void *client_data);
+static FLAC__bool eof_callback_(const FLAC__SeekableStreamDecoder *decoder, void *client_data);
+static FLAC__StreamDecoderWriteStatus write_callback_(const FLAC__SeekableStreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data);
+static void metadata_callback_(const FLAC__SeekableStreamDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data);
+static void error_callback_(const FLAC__SeekableStreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data);
+
+/***********************************************************************
+ *
+ * Private class data
+ *
+ ***********************************************************************/
+
+typedef struct FLAC__FileDecoderPrivate {
+ FLAC__FileDecoderWriteCallback write_callback;
+ FLAC__FileDecoderMetadataCallback metadata_callback;
+ FLAC__FileDecoderErrorCallback error_callback;
+ void *client_data;
+ FILE *file;
+ char *filename; /* == NULL if stdin */
+ FLAC__SeekableStreamDecoder *seekable_stream_decoder;
+} FLAC__FileDecoderPrivate;
+
+/***********************************************************************
+ *
+ * Public static class data
+ *
+ ***********************************************************************/
+
+const char * const FLAC__FileDecoderStateString[] = {
+ "FLAC__FILE_DECODER_OK",
+ "FLAC__FILE_DECODER_END_OF_FILE",
+ "FLAC__FILE_DECODER_ERROR_OPENING_FILE",
+ "FLAC__FILE_DECODER_MEMORY_ALLOCATION_ERROR",
+ "FLAC__FILE_DECODER_SEEK_ERROR",
+ "FLAC__FILE_DECODER_SEEKABLE_STREAM_DECODER_DECODER_ERROR",
+ "FLAC__FILE_DECODER_ALREADY_INITIALIZED",
+ "FLAC__FILE_DECODER_INVALID_CALLBACK",
+ "FLAC__FILE_DECODER_UNINITIALIZED"
+};
+
+/***********************************************************************
+ *
+ * Class constructor/destructor
+ *
+ ***********************************************************************/
+
+FLAC__FileDecoder *FLAC__file_decoder_new()
+{
+ FLAC__FileDecoder *decoder;
+
+ FLAC__ASSERT(sizeof(int) >= 4); /* we want to die right away if this is not true */
+
+ decoder = (FLAC__FileDecoder*)malloc(sizeof(FLAC__FileDecoder));
+ if(decoder == 0) {
+ return 0;
+ }
+ memset(decoder, 0, sizeof(FLAC__FileDecoder));
+
+ decoder->protected_ = (FLAC__FileDecoderProtected*)malloc(sizeof(FLAC__FileDecoderProtected));
+ if(decoder->protected_ == 0) {
+ free(decoder);
+ return 0;
+ }
+ memset(decoder->protected_, 0, sizeof(FLAC__FileDecoderProtected));
+
+ decoder->private_ = (FLAC__FileDecoderPrivate*)malloc(sizeof(FLAC__FileDecoderPrivate));
+ if(decoder->private_ == 0) {
+ free(decoder->protected_);
+ free(decoder);
+ return 0;
+ }
+ memset(decoder->private_, 0, sizeof(FLAC__FileDecoderPrivate));
+
+ decoder->private_->seekable_stream_decoder = FLAC__seekable_stream_decoder_new();
+ if(0 == decoder->private_->seekable_stream_decoder) {
+ free(decoder->private_);
+ free(decoder->protected_);
+ free(decoder);
+ return 0;
+ }
+
+ decoder->private_->file = 0;
+
+ set_defaults_(decoder);
+
+ decoder->protected_->state = FLAC__FILE_DECODER_UNINITIALIZED;
+
+ return decoder;
+}
+
+void FLAC__file_decoder_delete(FLAC__FileDecoder *decoder)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->protected_);
+ FLAC__ASSERT(0 != decoder->private_);
+ FLAC__ASSERT(0 != decoder->private_->seekable_stream_decoder);
+
+ (void)FLAC__file_decoder_finish(decoder);
+
+ FLAC__seekable_stream_decoder_delete(decoder->private_->seekable_stream_decoder);
+
+ free(decoder->private_);
+ free(decoder->protected_);
+ free(decoder);
+}
+
+/***********************************************************************
+ *
+ * Public class methods
+ *
+ ***********************************************************************/
+
+FLAC__FileDecoderState FLAC__file_decoder_init(FLAC__FileDecoder *decoder)
+{
+ FLAC__ASSERT(0 != decoder);
+
+ if(decoder->protected_->state != FLAC__FILE_DECODER_UNINITIALIZED)
+ return decoder->protected_->state = FLAC__FILE_DECODER_ALREADY_INITIALIZED;
+
+ if(0 == decoder->private_->write_callback || 0 == decoder->private_->metadata_callback || 0 == decoder->private_->error_callback)
+ return decoder->protected_->state = FLAC__FILE_DECODER_INVALID_CALLBACK;
+
+ if(0 == decoder->private_->filename)
+ decoder->private_->file = get_binary_stdin_();
+ else
+ decoder->private_->file = fopen(decoder->private_->filename, "rb");
+
+ if(decoder->private_->file == 0)
+ return decoder->protected_->state = FLAC__FILE_DECODER_ERROR_OPENING_FILE;
+
+ FLAC__seekable_stream_decoder_set_read_callback(decoder->private_->seekable_stream_decoder, read_callback_);
+ FLAC__seekable_stream_decoder_set_seek_callback(decoder->private_->seekable_stream_decoder, seek_callback_);
+ FLAC__seekable_stream_decoder_set_tell_callback(decoder->private_->seekable_stream_decoder, tell_callback_);
+ FLAC__seekable_stream_decoder_set_length_callback(decoder->private_->seekable_stream_decoder, length_callback_);
+ FLAC__seekable_stream_decoder_set_eof_callback(decoder->private_->seekable_stream_decoder, eof_callback_);
+ FLAC__seekable_stream_decoder_set_write_callback(decoder->private_->seekable_stream_decoder, write_callback_);
+ FLAC__seekable_stream_decoder_set_metadata_callback(decoder->private_->seekable_stream_decoder, metadata_callback_);
+ FLAC__seekable_stream_decoder_set_error_callback(decoder->private_->seekable_stream_decoder, error_callback_);
+ FLAC__seekable_stream_decoder_set_client_data(decoder->private_->seekable_stream_decoder, decoder);
+
+ if(FLAC__seekable_stream_decoder_init(decoder->private_->seekable_stream_decoder) != FLAC__SEEKABLE_STREAM_DECODER_OK)
+ return decoder->protected_->state = FLAC__FILE_DECODER_SEEKABLE_STREAM_DECODER_ERROR;
+
+ return decoder->protected_->state = FLAC__FILE_DECODER_OK;
+}
+
+FLAC__bool FLAC__file_decoder_finish(FLAC__FileDecoder *decoder)
+{
+ FLAC__ASSERT(0 != decoder);
+
+ if(decoder->protected_->state == FLAC__FILE_DECODER_UNINITIALIZED)
+ return true;
+
+ FLAC__ASSERT(0 != decoder->private_->seekable_stream_decoder);
+
+ if(0 != decoder->private_->file && decoder->private_->file != stdin) {
+ fclose(decoder->private_->file);
+ decoder->private_->file = 0;
+ }
+
+ if(0 != decoder->private_->filename) {
+ free(decoder->private_->filename);
+ decoder->private_->filename = 0;
+ }
+
+ set_defaults_(decoder);
+
+ decoder->protected_->state = FLAC__FILE_DECODER_UNINITIALIZED;
+
+ return FLAC__seekable_stream_decoder_finish(decoder->private_->seekable_stream_decoder);
+}
+
+FLAC__bool FLAC__file_decoder_set_md5_checking(FLAC__FileDecoder *decoder, FLAC__bool value)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->private_);
+ FLAC__ASSERT(0 != decoder->protected_);
+ FLAC__ASSERT(0 != decoder->private_->seekable_stream_decoder);
+ if(decoder->protected_->state != FLAC__FILE_DECODER_UNINITIALIZED)
+ return false;
+ return FLAC__seekable_stream_decoder_set_md5_checking(decoder->private_->seekable_stream_decoder, value);
+}
+
+FLAC__bool FLAC__file_decoder_set_filename(FLAC__FileDecoder *decoder, const char *value)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->private_);
+ FLAC__ASSERT(0 != decoder->protected_);
+ FLAC__ASSERT(0 != value);
+ if(decoder->protected_->state != FLAC__FILE_DECODER_UNINITIALIZED)
+ return false;
+ if(0 != decoder->private_->filename) {
+ free(decoder->private_->filename);
+ decoder->private_->filename = 0;
+ }
+ if(0 != strcmp(value, "-")) {
+ if(0 == (decoder->private_->filename = (char*)malloc(strlen(value)+1))) {
+ decoder->protected_->state = FLAC__FILE_DECODER_MEMORY_ALLOCATION_ERROR;
+ return false;
+ }
+ strcpy(decoder->private_->filename, value);
+ }
+ return true;
+}
+
+FLAC__bool FLAC__file_decoder_set_write_callback(FLAC__FileDecoder *decoder, FLAC__FileDecoderWriteCallback value)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->private_);
+ FLAC__ASSERT(0 != decoder->protected_);
+ if(decoder->protected_->state != FLAC__FILE_DECODER_UNINITIALIZED)
+ return false;
+ decoder->private_->write_callback = value;
+ return true;
+}
+
+FLAC__bool FLAC__file_decoder_set_metadata_callback(FLAC__FileDecoder *decoder, FLAC__FileDecoderMetadataCallback value)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->private_);
+ FLAC__ASSERT(0 != decoder->protected_);
+ if(decoder->protected_->state != FLAC__FILE_DECODER_UNINITIALIZED)
+ return false;
+ decoder->private_->metadata_callback = value;
+ return true;
+}
+
+FLAC__bool FLAC__file_decoder_set_error_callback(FLAC__FileDecoder *decoder, FLAC__FileDecoderErrorCallback value)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->private_);
+ FLAC__ASSERT(0 != decoder->protected_);
+ if(decoder->protected_->state != FLAC__FILE_DECODER_UNINITIALIZED)
+ return false;
+ decoder->private_->error_callback = value;
+ return true;
+}
+
+FLAC__bool FLAC__file_decoder_set_client_data(FLAC__FileDecoder *decoder, void *value)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->private_);
+ FLAC__ASSERT(0 != decoder->protected_);
+ if(decoder->protected_->state != FLAC__FILE_DECODER_UNINITIALIZED)
+ return false;
+ decoder->private_->client_data = value;
+ return true;
+}
+
+FLAC__bool FLAC__file_decoder_set_metadata_respond(FLAC__FileDecoder *decoder, FLAC__MetadataType type)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->private_);
+ FLAC__ASSERT(0 != decoder->protected_);
+ FLAC__ASSERT(0 != decoder->private_->seekable_stream_decoder);
+ if(decoder->protected_->state != FLAC__FILE_DECODER_UNINITIALIZED)
+ return false;
+ return FLAC__seekable_stream_decoder_set_metadata_respond(decoder->private_->seekable_stream_decoder, type);
+}
+
+FLAC__bool FLAC__file_decoder_set_metadata_respond_application(FLAC__FileDecoder *decoder, const FLAC__byte id[4])
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->private_);
+ FLAC__ASSERT(0 != decoder->protected_);
+ FLAC__ASSERT(0 != decoder->private_->seekable_stream_decoder);
+ if(decoder->protected_->state != FLAC__FILE_DECODER_UNINITIALIZED)
+ return false;
+ return FLAC__seekable_stream_decoder_set_metadata_respond_application(decoder->private_->seekable_stream_decoder, id);
+}
+
+FLAC__bool FLAC__file_decoder_set_metadata_respond_all(FLAC__FileDecoder *decoder)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->private_);
+ FLAC__ASSERT(0 != decoder->protected_);
+ FLAC__ASSERT(0 != decoder->private_->seekable_stream_decoder);
+ if(decoder->protected_->state != FLAC__FILE_DECODER_UNINITIALIZED)
+ return false;
+ return FLAC__seekable_stream_decoder_set_metadata_respond_all(decoder->private_->seekable_stream_decoder);
+}
+
+FLAC__bool FLAC__file_decoder_set_metadata_ignore(FLAC__FileDecoder *decoder, FLAC__MetadataType type)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->private_);
+ FLAC__ASSERT(0 != decoder->protected_);
+ FLAC__ASSERT(0 != decoder->private_->seekable_stream_decoder);
+ if(decoder->protected_->state != FLAC__FILE_DECODER_UNINITIALIZED)
+ return false;
+ return FLAC__seekable_stream_decoder_set_metadata_ignore(decoder->private_->seekable_stream_decoder, type);
+}
+
+FLAC__bool FLAC__file_decoder_set_metadata_ignore_application(FLAC__FileDecoder *decoder, const FLAC__byte id[4])
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->private_);
+ FLAC__ASSERT(0 != decoder->protected_);
+ FLAC__ASSERT(0 != decoder->private_->seekable_stream_decoder);
+ if(decoder->protected_->state != FLAC__FILE_DECODER_UNINITIALIZED)
+ return false;
+ return FLAC__seekable_stream_decoder_set_metadata_ignore_application(decoder->private_->seekable_stream_decoder, id);
+}
+
+FLAC__bool FLAC__file_decoder_set_metadata_ignore_all(FLAC__FileDecoder *decoder)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->private_);
+ FLAC__ASSERT(0 != decoder->protected_);
+ FLAC__ASSERT(0 != decoder->private_->seekable_stream_decoder);
+ if(decoder->protected_->state != FLAC__FILE_DECODER_UNINITIALIZED)
+ return false;
+ return FLAC__seekable_stream_decoder_set_metadata_ignore_all(decoder->private_->seekable_stream_decoder);
+}
+
+
+FLAC__FileDecoderState FLAC__file_decoder_get_state(const FLAC__FileDecoder *decoder)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->protected_);
+ return decoder->protected_->state;
+}
+
+FLAC__SeekableStreamDecoderState FLAC__file_decoder_get_seekable_stream_decoder_state(const FLAC__FileDecoder *decoder)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->private_);
+ return FLAC__seekable_stream_decoder_get_state(decoder->private_->seekable_stream_decoder);
+}
+
+FLAC__StreamDecoderState FLAC__file_decoder_get_stream_decoder_state(const FLAC__FileDecoder *decoder)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->private_);
+ return FLAC__seekable_stream_decoder_get_stream_decoder_state(decoder->private_->seekable_stream_decoder);
+}
+
+FLAC__bool FLAC__file_decoder_get_md5_checking(const FLAC__FileDecoder *decoder)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->private_);
+ return FLAC__seekable_stream_decoder_get_md5_checking(decoder->private_->seekable_stream_decoder);
+}
+
+unsigned FLAC__file_decoder_get_channels(const FLAC__FileDecoder *decoder)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->private_);
+ return FLAC__seekable_stream_decoder_get_channels(decoder->private_->seekable_stream_decoder);
+}
+
+FLAC__ChannelAssignment FLAC__file_decoder_get_channel_assignment(const FLAC__FileDecoder *decoder)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->private_);
+ return FLAC__seekable_stream_decoder_get_channel_assignment(decoder->private_->seekable_stream_decoder);
+}
+
+unsigned FLAC__file_decoder_get_bits_per_sample(const FLAC__FileDecoder *decoder)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->private_);
+ return FLAC__seekable_stream_decoder_get_bits_per_sample(decoder->private_->seekable_stream_decoder);
+}
+
+unsigned FLAC__file_decoder_get_sample_rate(const FLAC__FileDecoder *decoder)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->private_);
+ return FLAC__seekable_stream_decoder_get_sample_rate(decoder->private_->seekable_stream_decoder);
+}
+
+unsigned FLAC__file_decoder_get_blocksize(const FLAC__FileDecoder *decoder)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->private_);
+ return FLAC__seekable_stream_decoder_get_blocksize(decoder->private_->seekable_stream_decoder);
+}
+
+FLAC__bool FLAC__file_decoder_process_single(FLAC__FileDecoder *decoder)
+{
+ FLAC__bool ret;
+ FLAC__ASSERT(0 != decoder);
+
+ if(decoder->private_->seekable_stream_decoder->protected_->state == FLAC__SEEKABLE_STREAM_DECODER_END_OF_STREAM)
+ decoder->protected_->state = FLAC__FILE_DECODER_END_OF_FILE;
+
+ if(decoder->protected_->state == FLAC__FILE_DECODER_END_OF_FILE)
+ return true;
+
+ FLAC__ASSERT(decoder->protected_->state == FLAC__FILE_DECODER_OK);
+
+ ret = FLAC__seekable_stream_decoder_process_single(decoder->private_->seekable_stream_decoder);
+ if(!ret)
+ decoder->protected_->state = FLAC__FILE_DECODER_SEEKABLE_STREAM_DECODER_ERROR;
+
+ return ret;
+}
+
+FLAC__bool FLAC__file_decoder_process_until_end_of_metadata(FLAC__FileDecoder *decoder)
+{
+ FLAC__bool ret;
+ FLAC__ASSERT(0 != decoder);
+
+ if(decoder->private_->seekable_stream_decoder->protected_->state == FLAC__SEEKABLE_STREAM_DECODER_END_OF_STREAM)
+ decoder->protected_->state = FLAC__FILE_DECODER_END_OF_FILE;
+
+ if(decoder->protected_->state == FLAC__FILE_DECODER_END_OF_FILE)
+ return true;
+
+ FLAC__ASSERT(decoder->protected_->state == FLAC__FILE_DECODER_OK);
+
+ ret = FLAC__seekable_stream_decoder_process_until_end_of_metadata(decoder->private_->seekable_stream_decoder);
+ if(!ret)
+ decoder->protected_->state = FLAC__FILE_DECODER_SEEKABLE_STREAM_DECODER_ERROR;
+
+ return ret;
+}
+
+FLAC__bool FLAC__file_decoder_process_until_end_of_file(FLAC__FileDecoder *decoder)
+{
+ FLAC__bool ret;
+ FLAC__ASSERT(0 != decoder);
+
+ if(decoder->private_->seekable_stream_decoder->protected_->state == FLAC__SEEKABLE_STREAM_DECODER_END_OF_STREAM)
+ decoder->protected_->state = FLAC__FILE_DECODER_END_OF_FILE;
+
+ if(decoder->protected_->state == FLAC__FILE_DECODER_END_OF_FILE)
+ return true;
+
+ FLAC__ASSERT(decoder->protected_->state == FLAC__FILE_DECODER_OK);
+
+ ret = FLAC__seekable_stream_decoder_process_until_end_of_stream(decoder->private_->seekable_stream_decoder);
+ if(!ret)
+ decoder->protected_->state = FLAC__FILE_DECODER_SEEKABLE_STREAM_DECODER_ERROR;
+
+ return ret;
+}
+
+FLAC__bool FLAC__file_decoder_seek_absolute(FLAC__FileDecoder *decoder, FLAC__uint64 sample)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(decoder->protected_->state == FLAC__FILE_DECODER_OK || decoder->protected_->state == FLAC__FILE_DECODER_END_OF_FILE);
+
+ if(decoder->private_->filename == 0) { /* means the file is stdin... */
+ decoder->protected_->state = FLAC__FILE_DECODER_SEEK_ERROR;
+ return false;
+ }
+
+ if(!FLAC__seekable_stream_decoder_seek_absolute(decoder->private_->seekable_stream_decoder, sample)) {
+ decoder->protected_->state = FLAC__FILE_DECODER_SEEK_ERROR;
+ return false;
+ }
+ else {
+ decoder->protected_->state = FLAC__FILE_DECODER_OK;
+ return true;
+ }
+}
+
+
+/***********************************************************************
+ *
+ * Private class methods
+ *
+ ***********************************************************************/
+
+void set_defaults_(FLAC__FileDecoder *decoder)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->private_);
+
+ decoder->private_->filename = 0;
+ decoder->private_->write_callback = 0;
+ decoder->private_->metadata_callback = 0;
+ decoder->private_->error_callback = 0;
+ decoder->private_->client_data = 0;
+}
+
+/*
+ * This will forcibly set stdin to binary mode (for OSes that require it)
+ */
+FILE *get_binary_stdin_()
+{
+ /* if something breaks here it is probably due to the presence or
+ * absence of an underscore before the identifiers 'setmode',
+ * 'fileno', and/or 'O_BINARY'; check your system header files.
+ */
+#if defined _MSC_VER || defined __MINGW32__
+ _setmode(_fileno(stdin), _O_BINARY);
+#elif defined __CYGWIN__
+ /* almost certainly not needed for any modern Cygwin, but let's be safe... */
+ setmode(_fileno(stdin), _O_BINARY);
+#endif
+
+ return stdin;
+}
+
+FLAC__SeekableStreamDecoderReadStatus read_callback_(const FLAC__SeekableStreamDecoder *decoder, FLAC__byte buffer[], unsigned *bytes, void *client_data)
+{
+ FLAC__FileDecoder *file_decoder = (FLAC__FileDecoder *)client_data;
+ (void)decoder;
+
+ if(*bytes > 0) {
+ size_t bytes_read = fread(buffer, sizeof(FLAC__byte), *bytes, file_decoder->private_->file);
+ if(bytes_read == 0 && !feof(file_decoder->private_->file)) {
+ return FLAC__SEEKABLE_STREAM_DECODER_READ_STATUS_ERROR;
+ }
+ else {
+ *bytes = (unsigned)bytes_read;
+ return FLAC__SEEKABLE_STREAM_DECODER_READ_STATUS_OK;
+ }
+ }
+ else
+ return FLAC__SEEKABLE_STREAM_DECODER_READ_STATUS_ERROR; /* abort to avoid a deadlock */
+}
+
+FLAC__SeekableStreamDecoderSeekStatus seek_callback_(const FLAC__SeekableStreamDecoder *decoder, FLAC__uint64 absolute_byte_offset, void *client_data)
+{
+ FLAC__FileDecoder *file_decoder = (FLAC__FileDecoder *)client_data;
+ (void)decoder;
+
+ if(fseek(file_decoder->private_->file, (long)absolute_byte_offset, SEEK_SET) < 0)
+ return FLAC__SEEKABLE_STREAM_DECODER_SEEK_STATUS_ERROR;
+ else
+ return FLAC__SEEKABLE_STREAM_DECODER_SEEK_STATUS_OK;
+}
+
+FLAC__SeekableStreamDecoderTellStatus tell_callback_(const FLAC__SeekableStreamDecoder *decoder, FLAC__uint64 *absolute_byte_offset, void *client_data)
+{
+ FLAC__FileDecoder *file_decoder = (FLAC__FileDecoder *)client_data;
+ long pos;
+ (void)decoder;
+
+ if((pos = ftell(file_decoder->private_->file)) < 0)
+ return FLAC__SEEKABLE_STREAM_DECODER_TELL_STATUS_ERROR;
+ else {
+ *absolute_byte_offset = (FLAC__uint64)pos;
+ return FLAC__SEEKABLE_STREAM_DECODER_TELL_STATUS_OK;
+ }
+}
+
+FLAC__SeekableStreamDecoderLengthStatus length_callback_(const FLAC__SeekableStreamDecoder *decoder, FLAC__uint64 *stream_length, void *client_data)
+{
+ FLAC__FileDecoder *file_decoder = (FLAC__FileDecoder *)client_data;
+ struct stat filestats;
+ (void)decoder;
+
+ if(0 == file_decoder->private_->filename || stat(file_decoder->private_->filename, &filestats) != 0)
+ return FLAC__SEEKABLE_STREAM_DECODER_LENGTH_STATUS_ERROR;
+ else {
+ *stream_length = (FLAC__uint64)filestats.st_size;
+ return FLAC__SEEKABLE_STREAM_DECODER_LENGTH_STATUS_OK;
+ }
+}
+
+FLAC__bool eof_callback_(const FLAC__SeekableStreamDecoder *decoder, void *client_data)
+{
+ FLAC__FileDecoder *file_decoder = (FLAC__FileDecoder *)client_data;
+ (void)decoder;
+
+ return feof(file_decoder->private_->file);
+}
+
+FLAC__StreamDecoderWriteStatus write_callback_(const FLAC__SeekableStreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data)
+{
+ FLAC__FileDecoder *file_decoder = (FLAC__FileDecoder *)client_data;
+ (void)decoder;
+
+ return file_decoder->private_->write_callback(file_decoder, frame, buffer, file_decoder->private_->client_data);
+}
+
+void metadata_callback_(const FLAC__SeekableStreamDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data)
+{
+ FLAC__FileDecoder *file_decoder = (FLAC__FileDecoder *)client_data;
+ (void)decoder;
+
+ file_decoder->private_->metadata_callback(file_decoder, metadata, file_decoder->private_->client_data);
+}
+
+void error_callback_(const FLAC__SeekableStreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data)
+{
+ FLAC__FileDecoder *file_decoder = (FLAC__FileDecoder *)client_data;
+ (void)decoder;
+
+ file_decoder->private_->error_callback(file_decoder, status, file_decoder->private_->client_data);
+}
--- /dev/null
+# libOggFLAC - Free Lossless Audio Codec + Ogg 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.
+
+SUBDIRS = private
--- /dev/null
+# libOggFLAC - Free Lossless Audio Codec + Ogg 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.
+
+noinst_HEADERS = \
+ all.h \
+ file_decoder.h \
+ seekable_stream_decoder.h \
+ stream_decoder.h \
+ stream_encoder.h
--- /dev/null
+/* libOggFLAC - Free Lossless Audio Codec + Ogg 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 OggFLAC__PROTECTED__ALL_H
+#define OggFLAC__PROTECTED__ALL_H
+
+#include "file_decoder.h"
+#include "seekable_stream_decoder.h"
+#include "stream_decoder.h"
+#include "stream_encoder.h"
+
+#endif
--- /dev/null
+/* libOggFLAC - Free Lossless Audio Codec + Ogg 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 OggFLAC__PROTECTED__FILE_DECODER_H
+#define OggFLAC__PROTECTED__FILE_DECODER_H
+
+#include "OggFLAC/file_decoder.h"
+
+typedef struct OggFLAC__FileDecoderProtected {
+ OggFLAC__FileDecoderState state;
+} OggFLAC__FileDecoderProtected;
+
+#endif
--- /dev/null
+/* libOggFLAC - Free Lossless Audio Codec + Ogg 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 OggFLAC__PROTECTED__SEEKABLE_STREAM_DECODER_H
+#define OggFLAC__PROTECTED__SEEKABLE_STREAM_DECODER_H
+
+#include "OggFLAC/seekable_stream_decoder.h"
+
+typedef struct OggFLAC__SeekableStreamDecoderProtected {
+ OggFLAC__SeekableStreamDecoderState state;
+} OggFLAC__SeekableStreamDecoderProtected;
+
+#endif
--- /dev/null
+/* libOggFLAC - Free Lossless Audio Codec + Ogg 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 OggFLAC__PROTECTED__STREAM_DECODER_H
+#define OggFLAC__PROTECTED__STREAM_DECODER_H
+
+#include "OggFLAC/stream_decoder.h"
+
+typedef struct OggFLAC__StreamDecoderProtected {
+ OggFLAC__StreamDecoderState state;
+} OggFLAC__StreamDecoderProtected;
+
+#endif
--- /dev/null
+/* libOggFLAC - Free Lossless Audio Codec + Ogg 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 OggFLAC__PROTECTED__STREAM_ENCODER_H
+#define OggFLAC__PROTECTED__STREAM_ENCODER_H
+
+#include "OggFLAC/stream_encoder.h"
+
+typedef struct OggFLAC__StreamEncoderProtected {
+ OggFLAC__StreamEncoderState state;
+} OggFLAC__StreamEncoderProtected;
+
+#endif
--- /dev/null
+# Configure paths for libOggFLAC
+# "Inspired" by ogg.m4
+
+dnl AM_PATH_LIBOGGFLAC([ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]])
+dnl Test for libOggFLAC, and define LIBOGGFLAC_CFLAGS and LIBOGGFLAC_LIBS
+dnl
+AC_DEFUN(AM_PATH_LIBOGGFLAC,
+[dnl
+dnl Get the cflags and libraries
+dnl
+AC_ARG_WITH(libOggFLAC,[ --with-libOggFLAC=PFX Prefix where libOggFLAC is installed (optional)], libOggFLAC_prefix="$withval", libOggFLAC_prefix="")
+AC_ARG_WITH(libOggFLAC-libraries,[ --with-libOggFLAC-libraries=DIR Directory where libOggFLAC library is installed (optional)], libOggFLAC_libraries="$withval", libOggFLAC_libraries="")
+AC_ARG_WITH(libOggFLAC-includes,[ --with-libOggFLAC-includes=DIR Directory where libOggFLAC header files are installed (optional)], libOggFLAC_includes="$withval", libOggFLAC_includes="")
+AC_ARG_ENABLE(libOggFLACtest, [ --disable-libOggFLACtest Do not try to compile and run a test libOggFLAC program],, enable_libOggFLACtest=yes)
+
+ if test "x$libOggFLAC_libraries" != "x" ; then
+ LIBOGGFLAC_LIBS="-L$libOggFLAC_libraries"
+ elif test "x$libOggFLAC_prefix" != "x" ; then
+ LIBOGGFLAC_LIBS="-L$libOggFLAC_prefix/lib"
+ elif test "x$prefix" != "xNONE" ; then
+ LIBOGGFLAC_LIBS="-L$prefix/lib"
+ fi
+
+ LIBOGGFLAC_LIBS="$LIBOGGFLAC_LIBS -lOggFLAC -lFLAC -lm"
+
+ if test "x$libOggFLAC_includes" != "x" ; then
+ LIBOGGFLAC_CFLAGS="-I$libOggFLAC_includes"
+ elif test "x$libOggFLAC_prefix" != "x" ; then
+ LIBOGGFLAC_CFLAGS="-I$libOggFLAC_prefix/include"
+ elif test "$prefix" != "xNONE"; then
+ LIBOGGFLAC_CFLAGS="-I$prefix/include"
+ fi
+
+ AC_MSG_CHECKING(for libOggFLAC)
+ no_libOggFLAC=""
+
+
+ if test "x$enable_libOggFLACtest" = "xyes" ; then
+ ac_save_CFLAGS="$CFLAGS"
+ ac_save_CXXFLAGS="$CXXFLAGS"
+ ac_save_LIBS="$LIBS"
+ CFLAGS="$CFLAGS $LIBOGGFLAC_CFLAGS"
+ CXXFLAGS="$CXXFLAGS $LIBOGGFLAC_CFLAGS"
+ LIBS="$LIBS $LIBOGGFLAC_LIBS"
+dnl
+dnl Now check if the installed libOggFLAC is sufficiently new.
+dnl
+ rm -f conf.libOggFLACtest
+ AC_TRY_RUN([
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <OggFLAC/stream_decoder.h>
+
+int main ()
+{
+ system("touch conf.libOggFLACtest");
+ return 0;
+}
+
+],, no_libOggFLAC=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
+ CFLAGS="$ac_save_CFLAGS"
+ LIBS="$ac_save_LIBS"
+ fi
+
+ if test "x$no_libOggFLAC" = "x" ; then
+ AC_MSG_RESULT(yes)
+ ifelse([$1], , :, [$1])
+ else
+ AC_MSG_RESULT(no)
+ if test -f conf.libOggFLACtest ; then
+ :
+ else
+ echo "*** Could not run libOggFLAC test program, checking why..."
+ CFLAGS="$CFLAGS $LIBOGGFLAC_CFLAGS"
+ LIBS="$LIBS $LIBOGGFLAC_LIBS"
+ AC_TRY_LINK([
+#include <stdio.h>
+#include <OggFLAC/stream_decoder.h>
+], [ return 0; ],
+ [ echo "*** The test program compiled, but did not run. This usually means"
+ echo "*** that the run-time linker is not finding libOggFLAC or finding the wrong"
+ echo "*** version of libOggFLAC. If it is not finding libOggFLAC, you'll need to set your"
+ echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
+ echo "*** to the installed location Also, make sure you have run ldconfig if that"
+ echo "*** is required on your system"
+ echo "***"
+ echo "*** If you have an old version installed, it is best to remove it, although"
+ echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"],
+ [ echo "*** The test program failed to compile or link. See the file config.log for the"
+ echo "*** exact error that occured. This usually means libOggFLAC was incorrectly installed"
+ echo "*** or that you have moved libOggFLAC since it was installed. In the latter case, you"
+ echo "*** may want to edit the libOggFLAC-config script: $LIBOGGFLAC_CONFIG" ])
+ CFLAGS="$ac_save_CFLAGS"
+ LIBS="$ac_save_LIBS"
+ fi
+ LIBOGGFLAC_CFLAGS=""
+ LIBOGGFLAC_LIBS=""
+ ifelse([$2], , :, [$2])
+ fi
+ AC_SUBST(LIBOGGFLAC_CFLAGS)
+ AC_SUBST(LIBOGGFLAC_LIBS)
+ rm -f conf.libOggFLACtest
+])
--- /dev/null
+/* libOggFLAC - Free Lossless Audio Codec + Ogg 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()/memcmp() */
+#include "FLAC/assert.h"
+#include "protected/seekable_stream_decoder.h"
+#include "protected/stream_decoder.h"
+#include "private/md5.h"
+
+/***********************************************************************
+ *
+ * Private class method prototypes
+ *
+ ***********************************************************************/
+
+static void set_defaults_(FLAC__SeekableStreamDecoder *decoder);
+static FLAC__StreamDecoderReadStatus read_callback_(const FLAC__StreamDecoder *decoder, FLAC__byte buffer[], unsigned *bytes, void *client_data);
+static FLAC__StreamDecoderWriteStatus write_callback_(const FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data);
+static void metadata_callback_(const FLAC__StreamDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data);
+static void error_callback_(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data);
+static FLAC__bool seek_to_absolute_sample_(FLAC__SeekableStreamDecoder *decoder, FLAC__uint64 stream_length, FLAC__uint64 target_sample);
+
+/***********************************************************************
+ *
+ * Private class data
+ *
+ ***********************************************************************/
+
+typedef struct FLAC__SeekableStreamDecoderPrivate {
+ FLAC__SeekableStreamDecoderReadCallback read_callback;
+ FLAC__SeekableStreamDecoderSeekCallback seek_callback;
+ FLAC__SeekableStreamDecoderTellCallback tell_callback;
+ FLAC__SeekableStreamDecoderLengthCallback length_callback;
+ FLAC__SeekableStreamDecoderEofCallback eof_callback;
+ FLAC__SeekableStreamDecoderWriteCallback write_callback;
+ FLAC__SeekableStreamDecoderMetadataCallback metadata_callback;
+ FLAC__SeekableStreamDecoderErrorCallback error_callback;
+ void *client_data;
+ FLAC__StreamDecoder *stream_decoder;
+ FLAC__bool do_md5_checking; /* initially gets protected_->md5_checking but is turned off after a seek */
+ struct MD5Context md5context;
+ FLAC__byte stored_md5sum[16]; /* this is what is stored in the metadata */
+ FLAC__byte computed_md5sum[16]; /* this is the sum we computed from the decoded data */
+ /* the rest of these are only used for seeking: */
+ FLAC__StreamMetadata_StreamInfo stream_info; /* we keep this around so we can figure out how to seek quickly */
+ const FLAC__StreamMetadata_SeekTable *seek_table; /* we hold a pointer to the stream decoder's seek table for the same reason */
+ /* Since we always want to see the STREAMINFO and SEEK_TABLE blocks at this level, we need some extra flags to keep track of whether they should be passed on up through the metadata_callback */
+ FLAC__bool ignore_stream_info_block;
+ FLAC__bool ignore_seek_table_block;
+ FLAC__Frame last_frame; /* holds the info of the last frame we seeked to */
+ FLAC__uint64 target_sample;
+} FLAC__SeekableStreamDecoderPrivate;
+
+/***********************************************************************
+ *
+ * Public static class data
+ *
+ ***********************************************************************/
+
+const char * const FLAC__SeekableStreamDecoderStateString[] = {
+ "FLAC__SEEKABLE_STREAM_DECODER_OK",
+ "FLAC__SEEKABLE_STREAM_DECODER_SEEKING",
+ "FLAC__SEEKABLE_STREAM_DECODER_END_OF_STREAM",
+ "FLAC__SEEKABLE_STREAM_DECODER_MEMORY_ALLOCATION_ERROR",
+ "FLAC__SEEKABLE_STREAM_DECODER_STREAM_DECODER_ERROR",
+ "FLAC__SEEKABLE_STREAM_DECODER_READ_ERROR",
+ "FLAC__SEEKABLE_STREAM_DECODER_SEEK_ERROR",
+ "FLAC__SEEKABLE_STREAM_DECODER_ALREADY_INITIALIZED",
+ "FLAC__SEEKABLE_STREAM_DECODER_INVALID_CALLBACK",
+ "FLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED"
+};
+
+const char * const FLAC__SeekableStreamDecoderReadStatusString[] = {
+ "FLAC__SEEKABLE_STREAM_DECODER_READ_STATUS_OK",
+ "FLAC__SEEKABLE_STREAM_DECODER_READ_STATUS_ERROR"
+};
+
+const char * const FLAC__SeekableStreamDecoderSeekStatusString[] = {
+ "FLAC__SEEKABLE_STREAM_DECODER_SEEK_STATUS_OK",
+ "FLAC__SEEKABLE_STREAM_DECODER_SEEK_STATUS_ERROR"
+};
+
+const char * const FLAC__SeekableStreamDecoderTellStatusString[] = {
+ "FLAC__SEEKABLE_STREAM_DECODER_TELL_STATUS_OK",
+ "FLAC__SEEKABLE_STREAM_DECODER_TELL_STATUS_ERROR"
+};
+
+const char * const FLAC__SeekableStreamDecoderLengthStatusString[] = {
+ "FLAC__SEEKABLE_STREAM_DECODER_LENGTH_STATUS_OK",
+ "FLAC__SEEKABLE_STREAM_DECODER_LENGTH_STATUS_ERROR"
+};
+
+
+/***********************************************************************
+ *
+ * Class constructor/destructor
+ *
+ ***********************************************************************/
+
+FLAC__SeekableStreamDecoder *FLAC__seekable_stream_decoder_new()
+{
+ FLAC__SeekableStreamDecoder *decoder;
+
+ FLAC__ASSERT(sizeof(int) >= 4); /* we want to die right away if this is not true */
+
+ decoder = (FLAC__SeekableStreamDecoder*)malloc(sizeof(FLAC__SeekableStreamDecoder));
+ if(decoder == 0) {
+ return 0;
+ }
+ memset(decoder, 0, sizeof(FLAC__SeekableStreamDecoder));
+
+ decoder->protected_ = (FLAC__SeekableStreamDecoderProtected*)malloc(sizeof(FLAC__SeekableStreamDecoderProtected));
+ if(decoder->protected_ == 0) {
+ free(decoder);
+ return 0;
+ }
+ memset(decoder->protected_, 0, sizeof(FLAC__SeekableStreamDecoderProtected));
+
+ decoder->private_ = (FLAC__SeekableStreamDecoderPrivate*)malloc(sizeof(FLAC__SeekableStreamDecoderPrivate));
+ if(decoder->private_ == 0) {
+ free(decoder->protected_);
+ free(decoder);
+ return 0;
+ }
+ memset(decoder->private_, 0, sizeof(FLAC__SeekableStreamDecoderPrivate));
+
+ decoder->private_->stream_decoder = FLAC__stream_decoder_new();
+ if(0 == decoder->private_->stream_decoder) {
+ free(decoder->private_);
+ free(decoder->protected_);
+ free(decoder);
+ return 0;
+ }
+
+ set_defaults_(decoder);
+
+ decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED;
+
+ return decoder;
+}
+
+void FLAC__seekable_stream_decoder_delete(FLAC__SeekableStreamDecoder *decoder)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->protected_);
+ FLAC__ASSERT(0 != decoder->private_);
+ FLAC__ASSERT(0 != decoder->private_->stream_decoder);
+
+ (void)FLAC__seekable_stream_decoder_finish(decoder);
+
+ FLAC__stream_decoder_delete(decoder->private_->stream_decoder);
+
+ free(decoder->private_);
+ free(decoder->protected_);
+ free(decoder);
+}
+
+/***********************************************************************
+ *
+ * Public class methods
+ *
+ ***********************************************************************/
+
+FLAC__SeekableStreamDecoderState FLAC__seekable_stream_decoder_init(FLAC__SeekableStreamDecoder *decoder)
+{
+ FLAC__ASSERT(0 != decoder);
+
+ if(decoder->protected_->state != FLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED)
+ return decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_ALREADY_INITIALIZED;
+
+ if(0 == decoder->private_->read_callback || 0 == decoder->private_->seek_callback || 0 == decoder->private_->tell_callback || 0 == decoder->private_->length_callback || 0 == decoder->private_->eof_callback)
+ return decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_INVALID_CALLBACK;
+
+ if(0 == decoder->private_->write_callback || 0 == decoder->private_->metadata_callback || 0 == decoder->private_->error_callback)
+ return decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_INVALID_CALLBACK;
+
+ decoder->private_->seek_table = 0;
+
+ decoder->private_->do_md5_checking = decoder->protected_->md5_checking;
+
+ /* We initialize the MD5Context even though we may never use it. This is
+ * because md5 checking may be turned on to start and then turned off if a
+ * seek occurs. So we always init the context here and finalize it in
+ * FLAC__seekable_stream_decoder_finish() to make sure things are always
+ * cleaned up properly.
+ */
+ MD5Init(&decoder->private_->md5context);
+
+ FLAC__stream_decoder_set_read_callback(decoder->private_->stream_decoder, read_callback_);
+ FLAC__stream_decoder_set_write_callback(decoder->private_->stream_decoder, write_callback_);
+ FLAC__stream_decoder_set_metadata_callback(decoder->private_->stream_decoder, metadata_callback_);
+ FLAC__stream_decoder_set_error_callback(decoder->private_->stream_decoder, error_callback_);
+ FLAC__stream_decoder_set_client_data(decoder->private_->stream_decoder, decoder);
+
+ /* We always want to see these blocks. Whether or not we pass them up
+ * through the metadata callback will be determined by flags set in our
+ * implementation of ..._set_metadata_respond/ignore...()
+ */
+ FLAC__stream_decoder_set_metadata_respond(decoder->private_->stream_decoder, FLAC__METADATA_TYPE_STREAMINFO);
+ FLAC__stream_decoder_set_metadata_respond(decoder->private_->stream_decoder, FLAC__METADATA_TYPE_SEEKTABLE);
+
+ if(FLAC__stream_decoder_init(decoder->private_->stream_decoder) != FLAC__STREAM_DECODER_SEARCH_FOR_METADATA)
+ return decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_STREAM_DECODER_ERROR;
+
+ return decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_OK;
+}
+
+FLAC__bool FLAC__seekable_stream_decoder_finish(FLAC__SeekableStreamDecoder *decoder)
+{
+ FLAC__bool md5_failed = false;
+
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->private_);
+ FLAC__ASSERT(0 != decoder->protected_);
+
+ if(decoder->protected_->state == FLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED)
+ return true;
+
+ FLAC__ASSERT(0 != decoder->private_->stream_decoder);
+
+ /* see the comment in FLAC__seekable_stream_decoder_init() as to why we
+ * always call MD5Final()
+ */
+ MD5Final(decoder->private_->computed_md5sum, &decoder->private_->md5context);
+
+ FLAC__stream_decoder_finish(decoder->private_->stream_decoder);
+
+ if(decoder->private_->do_md5_checking) {
+ if(memcmp(decoder->private_->stored_md5sum, decoder->private_->computed_md5sum, 16))
+ md5_failed = true;
+ }
+
+ set_defaults_(decoder);
+
+ decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED;
+
+ return !md5_failed;
+}
+
+FLAC__bool FLAC__seekable_stream_decoder_set_md5_checking(FLAC__SeekableStreamDecoder *decoder, FLAC__bool value)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->protected_);
+ if(decoder->protected_->state != FLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED)
+ return false;
+ decoder->protected_->md5_checking = value;
+ return true;
+}
+
+FLAC__bool FLAC__seekable_stream_decoder_set_read_callback(FLAC__SeekableStreamDecoder *decoder, FLAC__SeekableStreamDecoderReadCallback value)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->private_);
+ FLAC__ASSERT(0 != decoder->protected_);
+ if(decoder->protected_->state != FLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED)
+ return false;
+ decoder->private_->read_callback = value;
+ return true;
+}
+
+FLAC__bool FLAC__seekable_stream_decoder_set_seek_callback(FLAC__SeekableStreamDecoder *decoder, FLAC__SeekableStreamDecoderSeekCallback value)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->private_);
+ FLAC__ASSERT(0 != decoder->protected_);
+ if(decoder->protected_->state != FLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED)
+ return false;
+ decoder->private_->seek_callback = value;
+ return true;
+}
+
+FLAC__bool FLAC__seekable_stream_decoder_set_tell_callback(FLAC__SeekableStreamDecoder *decoder, FLAC__SeekableStreamDecoderTellCallback value)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->private_);
+ FLAC__ASSERT(0 != decoder->protected_);
+ if(decoder->protected_->state != FLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED)
+ return false;
+ decoder->private_->tell_callback = value;
+ return true;
+}
+
+FLAC__bool FLAC__seekable_stream_decoder_set_length_callback(FLAC__SeekableStreamDecoder *decoder, FLAC__SeekableStreamDecoderLengthCallback value)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->private_);
+ FLAC__ASSERT(0 != decoder->protected_);
+ if(decoder->protected_->state != FLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED)
+ return false;
+ decoder->private_->length_callback = value;
+ return true;
+}
+
+FLAC__bool FLAC__seekable_stream_decoder_set_eof_callback(FLAC__SeekableStreamDecoder *decoder, FLAC__SeekableStreamDecoderEofCallback value)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->private_);
+ FLAC__ASSERT(0 != decoder->protected_);
+ if(decoder->protected_->state != FLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED)
+ return false;
+ decoder->private_->eof_callback = value;
+ return true;
+}
+
+FLAC__bool FLAC__seekable_stream_decoder_set_write_callback(FLAC__SeekableStreamDecoder *decoder, FLAC__SeekableStreamDecoderWriteCallback value)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->private_);
+ FLAC__ASSERT(0 != decoder->protected_);
+ if(decoder->protected_->state != FLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED)
+ return false;
+ decoder->private_->write_callback = value;
+ return true;
+}
+
+FLAC__bool FLAC__seekable_stream_decoder_set_metadata_callback(FLAC__SeekableStreamDecoder *decoder, FLAC__SeekableStreamDecoderMetadataCallback value)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->private_);
+ FLAC__ASSERT(0 != decoder->protected_);
+ if(decoder->protected_->state != FLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED)
+ return false;
+ decoder->private_->metadata_callback = value;
+ return true;
+}
+
+FLAC__bool FLAC__seekable_stream_decoder_set_error_callback(FLAC__SeekableStreamDecoder *decoder, FLAC__SeekableStreamDecoderErrorCallback value)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->private_);
+ FLAC__ASSERT(0 != decoder->protected_);
+ if(decoder->protected_->state != FLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED)
+ return false;
+ decoder->private_->error_callback = value;
+ return true;
+}
+
+FLAC__bool FLAC__seekable_stream_decoder_set_client_data(FLAC__SeekableStreamDecoder *decoder, void *value)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->private_);
+ FLAC__ASSERT(0 != decoder->protected_);
+ if(decoder->protected_->state != FLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED)
+ return false;
+ decoder->private_->client_data = value;
+ return true;
+}
+
+FLAC__bool FLAC__seekable_stream_decoder_set_metadata_respond(FLAC__SeekableStreamDecoder *decoder, FLAC__MetadataType type)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->private_);
+ FLAC__ASSERT(0 != decoder->protected_);
+ FLAC__ASSERT(0 != decoder->private_->stream_decoder);
+ if(decoder->protected_->state != FLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED)
+ return false;
+ if(type == FLAC__METADATA_TYPE_STREAMINFO)
+ decoder->private_->ignore_stream_info_block = false;
+ else if(type == FLAC__METADATA_TYPE_SEEKTABLE)
+ decoder->private_->ignore_seek_table_block = false;
+ return FLAC__stream_decoder_set_metadata_respond(decoder->private_->stream_decoder, type);
+}
+
+FLAC__bool FLAC__seekable_stream_decoder_set_metadata_respond_application(FLAC__SeekableStreamDecoder *decoder, const FLAC__byte id[4])
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->private_);
+ FLAC__ASSERT(0 != decoder->protected_);
+ FLAC__ASSERT(0 != decoder->private_->stream_decoder);
+ if(decoder->protected_->state != FLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED)
+ return false;
+ return FLAC__stream_decoder_set_metadata_respond_application(decoder->private_->stream_decoder, id);
+}
+
+FLAC__bool FLAC__seekable_stream_decoder_set_metadata_respond_all(FLAC__SeekableStreamDecoder *decoder)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->private_);
+ FLAC__ASSERT(0 != decoder->protected_);
+ FLAC__ASSERT(0 != decoder->private_->stream_decoder);
+ if(decoder->protected_->state != FLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED)
+ return false;
+ decoder->private_->ignore_stream_info_block = false;
+ decoder->private_->ignore_seek_table_block = false;
+ return FLAC__stream_decoder_set_metadata_respond_all(decoder->private_->stream_decoder);
+}
+
+FLAC__bool FLAC__seekable_stream_decoder_set_metadata_ignore(FLAC__SeekableStreamDecoder *decoder, FLAC__MetadataType type)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->private_);
+ FLAC__ASSERT(0 != decoder->protected_);
+ FLAC__ASSERT(0 != decoder->private_->stream_decoder);
+ if(decoder->protected_->state != FLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED)
+ return false;
+ if(type == FLAC__METADATA_TYPE_STREAMINFO)
+ decoder->private_->ignore_stream_info_block = true;
+ else if(type == FLAC__METADATA_TYPE_SEEKTABLE)
+ decoder->private_->ignore_seek_table_block = true;
+ return FLAC__stream_decoder_set_metadata_ignore(decoder->private_->stream_decoder, type);
+}
+
+FLAC__bool FLAC__seekable_stream_decoder_set_metadata_ignore_application(FLAC__SeekableStreamDecoder *decoder, const FLAC__byte id[4])
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->private_);
+ FLAC__ASSERT(0 != decoder->protected_);
+ FLAC__ASSERT(0 != decoder->private_->stream_decoder);
+ if(decoder->protected_->state != FLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED)
+ return false;
+ return FLAC__stream_decoder_set_metadata_ignore_application(decoder->private_->stream_decoder, id);
+}
+
+FLAC__bool FLAC__seekable_stream_decoder_set_metadata_ignore_all(FLAC__SeekableStreamDecoder *decoder)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->private_);
+ FLAC__ASSERT(0 != decoder->protected_);
+ FLAC__ASSERT(0 != decoder->private_->stream_decoder);
+ if(decoder->protected_->state != FLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED)
+ return false;
+ decoder->private_->ignore_stream_info_block = true;
+ decoder->private_->ignore_seek_table_block = true;
+ return FLAC__stream_decoder_set_metadata_ignore_all(decoder->private_->stream_decoder);
+}
+
+FLAC__SeekableStreamDecoderState FLAC__seekable_stream_decoder_get_state(const FLAC__SeekableStreamDecoder *decoder)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->protected_);
+ return decoder->protected_->state;
+}
+
+FLAC__SeekableStreamDecoderState FLAC__seekable_stream_decoder_get_stream_decoder_state(const FLAC__SeekableStreamDecoder *decoder)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->private_);
+ return FLAC__stream_decoder_get_state(decoder->private_->stream_decoder);
+}
+
+FLAC__bool FLAC__seekable_stream_decoder_get_md5_checking(const FLAC__SeekableStreamDecoder *decoder)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->protected_);
+ return decoder->protected_->md5_checking;
+}
+
+unsigned FLAC__seekable_stream_decoder_get_channels(const FLAC__SeekableStreamDecoder *decoder)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->private_);
+ return FLAC__stream_decoder_get_channels(decoder->private_->stream_decoder);
+}
+
+FLAC__ChannelAssignment FLAC__seekable_stream_decoder_get_channel_assignment(const FLAC__SeekableStreamDecoder *decoder)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->private_);
+ return FLAC__stream_decoder_get_channel_assignment(decoder->private_->stream_decoder);
+}
+
+unsigned FLAC__seekable_stream_decoder_get_bits_per_sample(const FLAC__SeekableStreamDecoder *decoder)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->private_);
+ return FLAC__stream_decoder_get_bits_per_sample(decoder->private_->stream_decoder);
+}
+
+unsigned FLAC__seekable_stream_decoder_get_sample_rate(const FLAC__SeekableStreamDecoder *decoder)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->private_);
+ return FLAC__stream_decoder_get_sample_rate(decoder->private_->stream_decoder);
+}
+
+unsigned FLAC__seekable_stream_decoder_get_blocksize(const FLAC__SeekableStreamDecoder *decoder)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->private_);
+ return FLAC__stream_decoder_get_blocksize(decoder->private_->stream_decoder);
+}
+
+FLAC__bool FLAC__seekable_stream_decoder_flush(FLAC__SeekableStreamDecoder *decoder)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->private_);
+ FLAC__ASSERT(0 != decoder->protected_);
+
+ decoder->private_->do_md5_checking = false;
+
+ if(!FLAC__stream_decoder_flush(decoder->private_->stream_decoder)) {
+ decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_STREAM_DECODER_ERROR;
+ return false;
+ }
+
+ decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_OK;
+
+ return true;
+}
+
+FLAC__bool FLAC__seekable_stream_decoder_reset(FLAC__SeekableStreamDecoder *decoder)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->private_);
+ FLAC__ASSERT(0 != decoder->protected_);
+
+ if(!FLAC__seekable_stream_decoder_flush(decoder)) {
+ decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_STREAM_DECODER_ERROR;
+ return false;
+ }
+
+ if(!FLAC__stream_decoder_reset(decoder->private_->stream_decoder)) {
+ decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_STREAM_DECODER_ERROR;
+ return false;
+ }
+
+ decoder->private_->seek_table = 0;
+
+ decoder->private_->do_md5_checking = decoder->protected_->md5_checking;
+
+ /* We initialize the MD5Context even though we may never use it. This is
+ * because md5 checking may be turned on to start and then turned off if a
+ * seek occurs. So we always init the context here and finalize it in
+ * FLAC__seekable_stream_decoder_finish() to make sure things are always
+ * cleaned up properly.
+ */
+ MD5Init(&decoder->private_->md5context);
+
+ decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_OK;
+
+ return true;
+}
+
+FLAC__bool FLAC__seekable_stream_decoder_process_single(FLAC__SeekableStreamDecoder *decoder)
+{
+ FLAC__bool ret;
+ FLAC__ASSERT(0 != decoder);
+
+ if(decoder->private_->stream_decoder->protected_->state == FLAC__STREAM_DECODER_END_OF_STREAM)
+ decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_END_OF_STREAM;
+
+ if(decoder->protected_->state == FLAC__SEEKABLE_STREAM_DECODER_END_OF_STREAM)
+ return true;
+
+ FLAC__ASSERT(decoder->protected_->state == FLAC__SEEKABLE_STREAM_DECODER_OK);
+
+ ret = FLAC__stream_decoder_process_single(decoder->private_->stream_decoder);
+ if(!ret)
+ decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_STREAM_DECODER_ERROR;
+
+ return ret;
+}
+
+FLAC__bool FLAC__seekable_stream_decoder_process_until_end_of_metadata(FLAC__SeekableStreamDecoder *decoder)
+{
+ FLAC__bool ret;
+ FLAC__ASSERT(0 != decoder);
+
+ if(decoder->private_->stream_decoder->protected_->state == FLAC__STREAM_DECODER_END_OF_STREAM)
+ decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_END_OF_STREAM;
+
+ if(decoder->protected_->state == FLAC__SEEKABLE_STREAM_DECODER_END_OF_STREAM)
+ return true;
+
+ FLAC__ASSERT(decoder->protected_->state == FLAC__SEEKABLE_STREAM_DECODER_OK);
+
+ ret = FLAC__stream_decoder_process_until_end_of_metadata(decoder->private_->stream_decoder);
+ if(!ret)
+ decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_STREAM_DECODER_ERROR;
+
+ return ret;
+}
+
+FLAC__bool FLAC__seekable_stream_decoder_process_until_end_of_stream(FLAC__SeekableStreamDecoder *decoder)
+{
+ FLAC__bool ret;
+ FLAC__ASSERT(0 != decoder);
+
+ if(decoder->private_->stream_decoder->protected_->state == FLAC__STREAM_DECODER_END_OF_STREAM)
+ decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_END_OF_STREAM;
+
+ if(decoder->protected_->state == FLAC__SEEKABLE_STREAM_DECODER_END_OF_STREAM)
+ return true;
+
+ FLAC__ASSERT(decoder->protected_->state == FLAC__SEEKABLE_STREAM_DECODER_OK);
+
+ ret = FLAC__stream_decoder_process_until_end_of_stream(decoder->private_->stream_decoder);
+ if(!ret)
+ decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_STREAM_DECODER_ERROR;
+
+ return ret;
+}
+
+FLAC__bool FLAC__seekable_stream_decoder_seek_absolute(FLAC__SeekableStreamDecoder *decoder, FLAC__uint64 sample)
+{
+ FLAC__uint64 length;
+
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(decoder->protected_->state == FLAC__SEEKABLE_STREAM_DECODER_OK || decoder->protected_->state == FLAC__SEEKABLE_STREAM_DECODER_END_OF_STREAM);
+
+ decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_SEEKING;
+
+ /* turn off md5 checking if a seek is attempted */
+ decoder->private_->do_md5_checking = false;
+
+ if(!FLAC__stream_decoder_reset(decoder->private_->stream_decoder)) {
+ decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_STREAM_DECODER_ERROR;
+ return false;
+ }
+ /* get the file length */
+ if(decoder->private_->length_callback(decoder, &length, decoder->private_->client_data) != FLAC__SEEKABLE_STREAM_DECODER_LENGTH_STATUS_OK) {
+ decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_SEEK_ERROR;
+ return false;
+ }
+ /* rewind */
+ if(decoder->private_->seek_callback(decoder, 0, decoder->private_->client_data) != FLAC__SEEKABLE_STREAM_DECODER_SEEK_STATUS_OK) {
+ decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_SEEK_ERROR;
+ return false;
+ }
+ if(!FLAC__stream_decoder_process_until_end_of_metadata(decoder->private_->stream_decoder)) {
+ decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_STREAM_DECODER_ERROR;
+ return false;
+ }
+ if(decoder->private_->stream_info.total_samples > 0 && sample > decoder->private_->stream_info.total_samples) {
+ decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_SEEK_ERROR;
+ return false;
+ }
+
+ return seek_to_absolute_sample_(decoder, length, sample);
+}
+
+/***********************************************************************
+ *
+ * Private class methods
+ *
+ ***********************************************************************/
+
+void set_defaults_(FLAC__SeekableStreamDecoder *decoder)
+{
+ decoder->private_->read_callback = 0;
+ decoder->private_->seek_callback = 0;
+ decoder->private_->tell_callback = 0;
+ decoder->private_->length_callback = 0;
+ decoder->private_->eof_callback = 0;
+ decoder->private_->write_callback = 0;
+ decoder->private_->metadata_callback = 0;
+ decoder->private_->error_callback = 0;
+ decoder->private_->client_data = 0;
+ /* WATCHOUT: these should match the default behavior of FLAC__StreamDecoder */
+ decoder->private_->ignore_stream_info_block = false;
+ decoder->private_->ignore_seek_table_block = true;
+
+ decoder->protected_->md5_checking = false;
+}
+
+FLAC__StreamDecoderReadStatus read_callback_(const FLAC__StreamDecoder *decoder, FLAC__byte buffer[], unsigned *bytes, void *client_data)
+{
+ FLAC__SeekableStreamDecoder *seekable_stream_decoder = (FLAC__SeekableStreamDecoder *)client_data;
+ (void)decoder;
+ if(seekable_stream_decoder->private_->eof_callback(seekable_stream_decoder, seekable_stream_decoder->private_->client_data)) {
+ seekable_stream_decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_END_OF_STREAM;
+ return FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM;
+ }
+ else if(*bytes > 0) {
+ unsigned bytes_read = *bytes;
+ if(seekable_stream_decoder->private_->read_callback(seekable_stream_decoder, buffer, &bytes_read, seekable_stream_decoder->private_->client_data) != FLAC__SEEKABLE_STREAM_DECODER_READ_STATUS_OK) {
+ seekable_stream_decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_READ_ERROR;
+ return FLAC__STREAM_DECODER_READ_STATUS_ABORT;
+ }
+ if(bytes_read == 0) {
+ if(seekable_stream_decoder->private_->eof_callback(seekable_stream_decoder, seekable_stream_decoder->private_->client_data)) {
+ seekable_stream_decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_END_OF_STREAM;
+ return FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM;
+ }
+ else
+ return FLAC__STREAM_DECODER_READ_STATUS_CONTINUE;
+ }
+ else {
+ *bytes = bytes_read;
+ return FLAC__STREAM_DECODER_READ_STATUS_CONTINUE;
+ }
+ }
+ else
+ return FLAC__STREAM_DECODER_READ_STATUS_ABORT; /* abort to avoid a deadlock */
+}
+
+FLAC__StreamDecoderWriteStatus write_callback_(const FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data)
+{
+ FLAC__SeekableStreamDecoder *seekable_stream_decoder = (FLAC__SeekableStreamDecoder *)client_data;
+ (void)decoder;
+
+ if(seekable_stream_decoder->protected_->state == FLAC__SEEKABLE_STREAM_DECODER_SEEKING) {
+ FLAC__uint64 this_frame_sample = frame->header.number.sample_number;
+ FLAC__uint64 next_frame_sample = this_frame_sample + (FLAC__uint64)frame->header.blocksize;
+ FLAC__uint64 target_sample = seekable_stream_decoder->private_->target_sample;
+
+ FLAC__ASSERT(frame->header.number_type == FLAC__FRAME_NUMBER_TYPE_SAMPLE_NUMBER);
+
+ seekable_stream_decoder->private_->last_frame = *frame; /* save the frame */
+ if(this_frame_sample <= target_sample && target_sample < next_frame_sample) { /* we hit our target frame */
+ unsigned delta = (unsigned)(target_sample - this_frame_sample);
+ /* kick out of seek mode */
+ seekable_stream_decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_OK;
+ /* shift out the samples before target_sample */
+ if(delta > 0) {
+ unsigned channel;
+ const FLAC__int32 *newbuffer[FLAC__MAX_CHANNELS];
+ for(channel = 0; channel < frame->header.channels; channel++)
+ newbuffer[channel] = buffer[channel] + delta;
+ seekable_stream_decoder->private_->last_frame.header.blocksize -= delta;
+ seekable_stream_decoder->private_->last_frame.header.number.sample_number += (FLAC__uint64)delta;
+ /* write the relevant samples */
+ return seekable_stream_decoder->private_->write_callback(seekable_stream_decoder, &seekable_stream_decoder->private_->last_frame, newbuffer, seekable_stream_decoder->private_->client_data);
+ }
+ else {
+ /* write the relevant samples */
+ return seekable_stream_decoder->private_->write_callback(seekable_stream_decoder, frame, buffer, seekable_stream_decoder->private_->client_data);
+ }
+ }
+ else {
+ return FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE;
+ }
+ }
+ else {
+ if(seekable_stream_decoder->private_->do_md5_checking) {
+ if(!FLAC__MD5Accumulate(&seekable_stream_decoder->private_->md5context, buffer, frame->header.channels, frame->header.blocksize, (frame->header.bits_per_sample+7) / 8))
+ return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
+ }
+ return seekable_stream_decoder->private_->write_callback(seekable_stream_decoder, frame, buffer, seekable_stream_decoder->private_->client_data);
+ }
+}
+
+void metadata_callback_(const FLAC__StreamDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data)
+{
+ FLAC__SeekableStreamDecoder *seekable_stream_decoder = (FLAC__SeekableStreamDecoder *)client_data;
+ (void)decoder;
+
+ if(metadata->type == FLAC__METADATA_TYPE_STREAMINFO) {
+ seekable_stream_decoder->private_->stream_info = metadata->data.stream_info;
+ /* save the MD5 signature for comparison later */
+ memcpy(seekable_stream_decoder->private_->stored_md5sum, metadata->data.stream_info.md5sum, 16);
+ if(0 == memcmp(seekable_stream_decoder->private_->stored_md5sum, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 16))
+ seekable_stream_decoder->private_->do_md5_checking = false;
+ }
+ else if(metadata->type == FLAC__METADATA_TYPE_SEEKTABLE) {
+ seekable_stream_decoder->private_->seek_table = &metadata->data.seek_table;
+ }
+
+ if(seekable_stream_decoder->protected_->state != FLAC__SEEKABLE_STREAM_DECODER_SEEKING) {
+ FLAC__bool ignore_block = false;
+ if(metadata->type == FLAC__METADATA_TYPE_STREAMINFO && seekable_stream_decoder->private_->ignore_stream_info_block)
+ ignore_block = true;
+ else if(metadata->type == FLAC__METADATA_TYPE_SEEKTABLE && seekable_stream_decoder->private_->ignore_seek_table_block)
+ ignore_block = true;
+ if(!ignore_block)
+ seekable_stream_decoder->private_->metadata_callback(seekable_stream_decoder, metadata, seekable_stream_decoder->private_->client_data);
+ }
+}
+
+void error_callback_(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data)
+{
+ FLAC__SeekableStreamDecoder *seekable_stream_decoder = (FLAC__SeekableStreamDecoder *)client_data;
+ (void)decoder;
+
+ if(seekable_stream_decoder->protected_->state != FLAC__SEEKABLE_STREAM_DECODER_SEEKING)
+ seekable_stream_decoder->private_->error_callback(seekable_stream_decoder, status, seekable_stream_decoder->private_->client_data);
+}
+
+FLAC__bool seek_to_absolute_sample_(FLAC__SeekableStreamDecoder *decoder, FLAC__uint64 stream_length, FLAC__uint64 target_sample)
+{
+ FLAC__uint64 first_frame_offset, lower_bound, upper_bound;
+ FLAC__int64 pos = -1, last_pos = -1;
+ int i, lower_seek_point = -1, upper_seek_point = -1;
+ unsigned approx_bytes_per_frame;
+ FLAC__uint64 last_frame_sample = 0xffffffffffffffff;
+ FLAC__bool needs_seek;
+ const FLAC__uint64 total_samples = decoder->private_->stream_info.total_samples;
+ const unsigned min_blocksize = decoder->private_->stream_info.min_blocksize;
+ const unsigned max_blocksize = decoder->private_->stream_info.max_blocksize;
+ const unsigned max_framesize = decoder->private_->stream_info.max_framesize;
+ const unsigned channels = FLAC__seekable_stream_decoder_get_channels(decoder);
+ const unsigned bps = FLAC__seekable_stream_decoder_get_bits_per_sample(decoder);
+
+ /* we are just guessing here, but we want to guess high, not low */
+ if(max_framesize > 0) {
+ approx_bytes_per_frame = max_framesize;
+ }
+ /*
+ * Check if it's a known fixed-blocksize stream. Note that though
+ * the spec doesn't allow zeroes in the STREAMINFO block, we may
+ * never get a STREAMINFO block when decoding so the value of
+ * min_blocksize might be zero.
+ */
+ else if(min_blocksize == max_blocksize && min_blocksize > 0) {
+ /* note there are no () around 'bps/8' to keep precision up since it's an integer calulation */
+ approx_bytes_per_frame = min_blocksize * channels * bps/8 + 64;
+ }
+ else
+ approx_bytes_per_frame = 4608 * channels * bps/8 + 64;
+
+ /*
+ * The stream position is currently at the first frame plus any read
+ * ahead data, so first we get the stream position, then subtract
+ * uncomsumed bytes to get the position of the first frame in the
+ * stream.
+ */
+ if(decoder->private_->tell_callback(decoder, &first_frame_offset, decoder->private_->client_data) != FLAC__SEEKABLE_STREAM_DECODER_TELL_STATUS_OK) {
+ decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_SEEK_ERROR;
+ return false;
+ }
+ FLAC__ASSERT(first_frame_offset >= FLAC__stream_decoder_get_input_bytes_unconsumed(decoder->private_->stream_decoder));
+ first_frame_offset -= FLAC__stream_decoder_get_input_bytes_unconsumed(decoder->private_->stream_decoder);
+
+ /*
+ * First, we set an upper and lower bound on where in the
+ * stream we will search. For now we assume the worst case
+ * scenario, which is our best guess at the beginning of
+ * the first and last frames.
+ */
+ lower_bound = first_frame_offset;
+
+ /* calc the upper_bound, beyond which we never want to seek */
+ if(max_framesize > 0)
+ upper_bound = stream_length - (max_framesize + 128 + 2); /* 128 for a possible ID3V1 tag, 2 for indexing differences */
+ else
+ upper_bound = stream_length - ((channels * bps * FLAC__MAX_BLOCK_SIZE) / 8 + 128 + 2);
+
+ /*
+ * Now we refine the bounds if we have a seektable with
+ * suitable points. Note that according to the spec they
+ * must be ordered by ascending sample number.
+ */
+ if(0 != decoder->private_->seek_table) {
+ /* find the closest seek point <= target_sample, if it exists */
+ for(i = (int)decoder->private_->seek_table->num_points - 1; i >= 0; i--) {
+ if(decoder->private_->seek_table->points[i].sample_number != FLAC__STREAM_METADATA_SEEKPOINT_PLACEHOLDER && decoder->private_->seek_table->points[i].sample_number <= target_sample)
+ break;
+ }
+ if(i >= 0) { /* i.e. we found a suitable seek point... */
+ lower_bound = first_frame_offset + decoder->private_->seek_table->points[i].stream_offset;
+ lower_seek_point = i;
+ }
+
+ /* find the closest seek point > target_sample, if it exists */
+ for(i = 0; i < (int)decoder->private_->seek_table->num_points; i++) {
+ if(decoder->private_->seek_table->points[i].sample_number != FLAC__STREAM_METADATA_SEEKPOINT_PLACEHOLDER && decoder->private_->seek_table->points[i].sample_number > target_sample)
+ break;
+ }
+ if(i < (int)decoder->private_->seek_table->num_points) { /* i.e. we found a suitable seek point... */
+ upper_bound = first_frame_offset + decoder->private_->seek_table->points[i].stream_offset;
+ upper_seek_point = i;
+ }
+ }
+
+ /*
+ * Now guess at where within those bounds our target
+ * sample will be.
+ */
+ if(lower_seek_point >= 0) {
+ /* first see if our sample is within a few frames of the lower seekpoint */
+ if(decoder->private_->seek_table->points[lower_seek_point].sample_number <= target_sample && target_sample < decoder->private_->seek_table->points[lower_seek_point].sample_number + (decoder->private_->seek_table->points[lower_seek_point].frame_samples * 4)) {
+ pos = (FLAC__int64)lower_bound;
+ }
+ else if(upper_seek_point >= 0) {
+ const FLAC__uint64 target_offset = target_sample - decoder->private_->seek_table->points[lower_seek_point].sample_number;
+ const FLAC__uint64 range_samples = decoder->private_->seek_table->points[upper_seek_point].sample_number - decoder->private_->seek_table->points[lower_seek_point].sample_number;
+ const FLAC__uint64 range_bytes = upper_bound - lower_bound;
+#if defined _MSC_VER || defined __MINGW32__
+ /* with VC++ you have to spoon feed it the casting */
+ pos = (FLAC__int64)lower_bound + (FLAC__int64)((double)(FLAC__int64)target_offset / (double)(FLAC__int64)range_samples * (double)(FLAC__int64)(range_bytes-1)) - approx_bytes_per_frame;
+#else
+ pos = (FLAC__int64)lower_bound + (FLAC__int64)((double)target_offset / (double)range_samples * (double)(range_bytes-1)) - approx_bytes_per_frame;
+#endif
+ }
+ }
+
+ /*
+ * If there's no seek table, we need to use the metadata (if we
+ * have it) and the filelength to estimate the position of the
+ * frame with the correct sample.
+ */
+ if(pos < 0 && total_samples > 0) {
+#if defined _MSC_VER || defined __MINGW32__
+ /* with VC++ you have to spoon feed it the casting */
+ pos = (FLAC__int64)first_frame_offset + (FLAC__int64)((double)(FLAC__int64)target_sample / (double)(FLAC__int64)total_samples * (double)(FLAC__int64)(stream_length-first_frame_offset-1)) - approx_bytes_per_frame;
+#else
+ pos = (FLAC__int64)first_frame_offset + (FLAC__int64)((double)target_sample / (double)total_samples * (double)(stream_length-first_frame_offset-1)) - approx_bytes_per_frame;
+#endif
+ }
+
+ /*
+ * If there's no seek table and total_samples is unknown, we
+ * don't even bother trying to figure out a target, we just use
+ * our current position.
+ */
+ if(pos < 0) {
+ FLAC__uint64 upos;
+ if(decoder->private_->tell_callback(decoder, &upos, decoder->private_->client_data) != FLAC__SEEKABLE_STREAM_DECODER_TELL_STATUS_OK) {
+ decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_SEEK_ERROR;
+ return false;
+ }
+ pos = (FLAC__int32)upos;
+ needs_seek = false;
+ }
+ else
+ needs_seek = true;
+
+ /* clip the position to the bounds, lower bound takes precedence */
+ if(pos >= (FLAC__int64)upper_bound) {
+ pos = (FLAC__int64)upper_bound-1;
+ needs_seek = true;
+ }
+ if(pos < (FLAC__int64)lower_bound) {
+ pos = (FLAC__int64)lower_bound;
+ needs_seek = true;
+ }
+
+ decoder->private_->target_sample = target_sample;
+ while(1) {
+ if(needs_seek) {
+ if(decoder->private_->seek_callback(decoder, (FLAC__uint64)pos, decoder->private_->client_data) != FLAC__SEEKABLE_STREAM_DECODER_SEEK_STATUS_OK) {
+ decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_SEEK_ERROR;
+ return false;
+ }
+ if(!FLAC__stream_decoder_flush(decoder->private_->stream_decoder)) {
+ decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_STREAM_DECODER_ERROR;
+ return false;
+ }
+ }
+ if(!FLAC__stream_decoder_process_single(decoder->private_->stream_decoder)) {
+ decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_SEEK_ERROR;
+ return false;
+ }
+ /* our write callback will change the state when it gets to the target frame */
+ if(decoder->protected_->state != FLAC__SEEKABLE_STREAM_DECODER_SEEKING) {
+ break;
+ }
+ else { /* we need to narrow the search */
+ FLAC__uint64 this_frame_sample = decoder->private_->last_frame.header.number.sample_number;
+ FLAC__ASSERT(decoder->private_->last_frame.header.number_type == FLAC__FRAME_NUMBER_TYPE_SAMPLE_NUMBER);
+ if(this_frame_sample == last_frame_sample) {
+ /* our last move backwards wasn't big enough */
+ pos -= (last_pos - pos);
+ needs_seek = true;
+ }
+ else {
+ if(target_sample < this_frame_sample) {
+ last_pos = pos;
+ approx_bytes_per_frame = decoder->private_->last_frame.header.blocksize * channels * bps/8 + 64;
+ pos -= approx_bytes_per_frame;
+ needs_seek = true;
+ }
+ else { /* target_sample >= this_frame_sample + this frame's blocksize */
+ FLAC__uint64 upos;
+ if(decoder->private_->tell_callback(decoder, &upos, decoder->private_->client_data) != FLAC__SEEKABLE_STREAM_DECODER_TELL_STATUS_OK) {
+ decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_SEEK_ERROR;
+ return false;
+ }
+ last_pos = pos;
+ pos = (FLAC__int32)upos;
+ pos -= FLAC__stream_decoder_get_input_bytes_unconsumed(decoder->private_->stream_decoder);
+ needs_seek = false;
+ }
+ }
+ if(pos < (FLAC__int64)lower_bound)
+ pos = (FLAC__int64)lower_bound;
+ last_frame_sample = this_frame_sample;
+ }
+ }
+
+ return true;
+}
--- /dev/null
+/* libOggFLAC - Free Lossless Audio Codec + Ogg 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 <stdlib.h>
+#include "FLAC/assert.h"
+#include "protected/stream_decoder.h"
+
+/***********************************************************************
+ *
+ * Private class method prototypes
+ *
+ ***********************************************************************/
+
+static void set_defaults_(FLAC__StreamDecoder *decoder);
+
+
+/***********************************************************************
+ *
+ * Private class data
+ *
+ ***********************************************************************/
+
+typedef struct FLAC__StreamDecoderPrivate {
+ FLAC__StreamDecoderReadCallback read_callback;
+ FLAC__StreamDecoderWriteCallback write_callback;
+ FLAC__StreamDecoderMetadataCallback metadata_callback;
+ FLAC__StreamDecoderErrorCallback error_callback;
+ void *client_data;
+} FLAC__StreamDecoderPrivate;
+
+/***********************************************************************
+ *
+ * Public static class data
+ *
+ ***********************************************************************/
+
+const char * const FLAC__StreamDecoderStateString[] = {
+ "OggFLAC__STREAM_DECODER_OK",
+ "OggFLAC__STREAM_DECODER_FLAC_STREAM_DECODER_ERROR",
+ "OggFLAC__STREAM_DECODER_INVALID_CALLBACK",
+ "OggFLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR",
+ "OggFLAC__STREAM_DECODER_ALREADY_INITIALIZED",
+ "OggFLAC__STREAM_DECODER_UNINITIALIZED"
+};
+
+
+/***********************************************************************
+ *
+ * Class constructor/destructor
+ *
+ ***********************************************************************/
+FLAC__StreamDecoder *FLAC__stream_decoder_new()
+{
+ FLAC__StreamDecoder *decoder;
+ unsigned i;
+
+ FLAC__ASSERT(sizeof(int) >= 4); /* we want to die right away if this is not true */
+
+ decoder = (FLAC__StreamDecoder*)malloc(sizeof(FLAC__StreamDecoder));
+ if(decoder == 0) {
+ return 0;
+ }
+ memset(decoder, 0, sizeof(FLAC__StreamDecoder));
+
+ decoder->protected_ = (FLAC__StreamDecoderProtected*)malloc(sizeof(FLAC__StreamDecoderProtected));
+ if(decoder->protected_ == 0) {
+ free(decoder);
+ return 0;
+ }
+ memset(decoder->protected_, 0, sizeof(FLAC__StreamDecoderProtected));
+
+ decoder->private_ = (FLAC__StreamDecoderPrivate*)malloc(sizeof(FLAC__StreamDecoderPrivate));
+ if(decoder->private_ == 0) {
+ free(decoder->protected_);
+ free(decoder);
+ return 0;
+ }
+ memset(decoder->private_, 0, sizeof(FLAC__StreamDecoderPrivate));
+
+ decoder->private_->input = FLAC__bitbuffer_new();
+ if(decoder->private_->input == 0) {
+ free(decoder->private_);
+ free(decoder->protected_);
+ free(decoder);
+ return 0;
+ }
+
+ decoder->private_->metadata_filter_ids_capacity = 16;
+ if(0 == (decoder->private_->metadata_filter_ids = malloc((FLAC__STREAM_METADATA_APPLICATION_ID_LEN/8) * decoder->private_->metadata_filter_ids_capacity))) {
+ FLAC__bitbuffer_delete(decoder->private_->input);
+ free(decoder->private_);
+ free(decoder->protected_);
+ free(decoder);
+ return 0;
+ }
+
+ for(i = 0; i < FLAC__MAX_CHANNELS; i++) {
+ decoder->private_->output[i] = 0;
+ decoder->private_->residual[i] = 0;
+ }
+
+ decoder->private_->output_capacity = 0;
+ decoder->private_->output_channels = 0;
+ decoder->private_->has_seek_table = false;
+
+ set_defaults_(decoder);
+
+ decoder->protected_->state = FLAC__STREAM_DECODER_UNINITIALIZED;
+
+ return decoder;
+}
+
+void FLAC__stream_decoder_delete(FLAC__StreamDecoder *decoder)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->protected_);
+ FLAC__ASSERT(0 != decoder->private_);
+ FLAC__ASSERT(0 != decoder->private_->input);
+
+ FLAC__stream_decoder_finish(decoder);
+
+ if(0 != decoder->private_->metadata_filter_ids)
+ free(decoder->private_->metadata_filter_ids);
+
+ FLAC__bitbuffer_delete(decoder->private_->input);
+ free(decoder->private_);
+ free(decoder->protected_);
+ free(decoder);
+}
+
+/***********************************************************************
+ *
+ * Public class methods
+ *
+ ***********************************************************************/
+
+FLAC__StreamDecoderState FLAC__stream_decoder_init(FLAC__StreamDecoder *decoder)
+{
+ FLAC__ASSERT(0 != decoder);
+
+ if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
+ return decoder->protected_->state = FLAC__STREAM_DECODER_ALREADY_INITIALIZED;
+
+ if(0 == decoder->private_->read_callback || 0 == decoder->private_->write_callback || 0 == decoder->private_->metadata_callback || 0 == decoder->private_->error_callback)
+ return decoder->protected_->state = FLAC__STREAM_DECODER_INVALID_CALLBACK;
+
+ if(!FLAC__bitbuffer_init(decoder->private_->input))
+ return decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
+
+ decoder->private_->last_frame_number = 0;
+ decoder->private_->samples_decoded = 0;
+ decoder->private_->has_stream_info = false;
+ decoder->private_->cached = false;
+
+ /*
+ * get the CPU info and set the function pointers
+ */
+ FLAC__cpu_info(&decoder->private_->cpuinfo);
+ /* first default to the non-asm routines */
+ decoder->private_->local_lpc_restore_signal = FLAC__lpc_restore_signal;
+ decoder->private_->local_lpc_restore_signal_16bit = FLAC__lpc_restore_signal;
+ /* now override with asm where appropriate */
+#ifndef FLAC__NO_ASM
+ if(decoder->private_->cpuinfo.use_asm) {
+#ifdef FLAC__CPU_IA32
+ FLAC__ASSERT(decoder->private_->cpuinfo.type == FLAC__CPUINFO_TYPE_IA32);
+#ifdef FLAC__HAS_NASM
+ if(decoder->private_->cpuinfo.data.ia32.mmx) {
+ decoder->private_->local_lpc_restore_signal = FLAC__lpc_restore_signal_asm_ia32;
+ decoder->private_->local_lpc_restore_signal_16bit = FLAC__lpc_restore_signal_asm_ia32_mmx;
+ }
+ else {
+ decoder->private_->local_lpc_restore_signal = FLAC__lpc_restore_signal_asm_ia32;
+ decoder->private_->local_lpc_restore_signal_16bit = FLAC__lpc_restore_signal_asm_ia32;
+ }
+#endif
+#endif
+ }
+#endif
+
+ if(!FLAC__stream_decoder_reset(decoder))
+ return decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
+
+ return decoder->protected_->state;
+}
+
+void FLAC__stream_decoder_finish(FLAC__StreamDecoder *decoder)
+{
+ unsigned i;
+ FLAC__ASSERT(0 != decoder);
+ if(decoder->protected_->state == FLAC__STREAM_DECODER_UNINITIALIZED)
+ return;
+ if(decoder->private_->has_seek_table) {
+ FLAC__ASSERT(0 != decoder->private_->seek_table.data.seek_table.points);
+ free(decoder->private_->seek_table.data.seek_table.points);
+ decoder->private_->seek_table.data.seek_table.points = 0;
+ decoder->private_->has_seek_table = false;
+ }
+ FLAC__bitbuffer_free(decoder->private_->input);
+ for(i = 0; i < FLAC__MAX_CHANNELS; i++) {
+ /* WATCHOUT: FLAC__lpc_restore_signal_asm_ia32_mmx() requires that the output arrays have a buffer of up to 3 zeroes in front (at negative indices) for alignment purposes; we use 4 to keep the data well-aligned. */
+ if(0 != decoder->private_->output[i]) {
+ free(decoder->private_->output[i]-4);
+ decoder->private_->output[i] = 0;
+ }
+ if(0 != decoder->private_->residual[i]) {
+ free(decoder->private_->residual[i]);
+ decoder->private_->residual[i] = 0;
+ }
+ }
+ decoder->private_->output_capacity = 0;
+ decoder->private_->output_channels = 0;
+
+ set_defaults_(decoder);
+
+ decoder->protected_->state = FLAC__STREAM_DECODER_UNINITIALIZED;
+}
+
+FLAC__bool FLAC__stream_decoder_set_read_callback(FLAC__StreamDecoder *decoder, FLAC__StreamDecoderReadCallback value)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->private_);
+ FLAC__ASSERT(0 != decoder->protected_);
+ if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
+ return false;
+ decoder->private_->read_callback = value;
+ return true;
+}
+
+FLAC__bool FLAC__stream_decoder_set_write_callback(FLAC__StreamDecoder *decoder, FLAC__StreamDecoderWriteCallback value)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->private_);
+ FLAC__ASSERT(0 != decoder->protected_);
+ if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
+ return false;
+ decoder->private_->write_callback = value;
+ return true;
+}
+
+FLAC__bool FLAC__stream_decoder_set_metadata_callback(FLAC__StreamDecoder *decoder, FLAC__StreamDecoderMetadataCallback value)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->private_);
+ FLAC__ASSERT(0 != decoder->protected_);
+ if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
+ return false;
+ decoder->private_->metadata_callback = value;
+ return true;
+}
+
+FLAC__bool FLAC__stream_decoder_set_error_callback(FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorCallback value)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->private_);
+ FLAC__ASSERT(0 != decoder->protected_);
+ if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
+ return false;
+ decoder->private_->error_callback = value;
+ return true;
+}
+
+FLAC__bool FLAC__stream_decoder_set_client_data(FLAC__StreamDecoder *decoder, void *value)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->private_);
+ FLAC__ASSERT(0 != decoder->protected_);
+ if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
+ return false;
+ decoder->private_->client_data = value;
+ return true;
+}
+
+FLAC__bool FLAC__stream_decoder_set_metadata_respond(FLAC__StreamDecoder *decoder, FLAC__MetadataType type)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->private_);
+ FLAC__ASSERT(0 != decoder->protected_);
+ FLAC__ASSERT(type <= FLAC__METADATA_TYPE_VORBIS_COMMENT);
+ if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
+ return false;
+ decoder->private_->metadata_filter[type] = true;
+ if(type == FLAC__METADATA_TYPE_APPLICATION)
+ decoder->private_->metadata_filter_ids_count = 0;
+ return true;
+}
+
+FLAC__bool FLAC__stream_decoder_set_metadata_respond_application(FLAC__StreamDecoder *decoder, const FLAC__byte id[4])
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->private_);
+ FLAC__ASSERT(0 != decoder->protected_);
+ FLAC__ASSERT(0 != id);
+ if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
+ return false;
+
+ if(decoder->private_->metadata_filter[FLAC__METADATA_TYPE_APPLICATION])
+ return true;
+
+ FLAC__ASSERT(0 != decoder->private_->metadata_filter_ids);
+
+ if(decoder->private_->metadata_filter_ids_count == decoder->private_->metadata_filter_ids_capacity) {
+ if(0 == (decoder->private_->metadata_filter_ids = realloc(decoder->private_->metadata_filter_ids, decoder->private_->metadata_filter_ids_capacity * 2)))
+ return decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
+ decoder->private_->metadata_filter_ids_capacity *= 2;
+ }
+
+ memcpy(decoder->private_->metadata_filter_ids + decoder->private_->metadata_filter_ids_count * (FLAC__STREAM_METADATA_APPLICATION_ID_LEN/8), id, (FLAC__STREAM_METADATA_APPLICATION_ID_LEN/8));
+ decoder->private_->metadata_filter_ids_count++;
+
+ return true;
+}
+
+FLAC__bool FLAC__stream_decoder_set_metadata_respond_all(FLAC__StreamDecoder *decoder)
+{
+ unsigned i;
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->private_);
+ FLAC__ASSERT(0 != decoder->protected_);
+ if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
+ return false;
+ for(i = 0; i < sizeof(decoder->private_->metadata_filter) / sizeof(decoder->private_->metadata_filter[0]); i++)
+ decoder->private_->metadata_filter[i] = true;
+ decoder->private_->metadata_filter_ids_count = 0;
+ return true;
+}
+
+FLAC__bool FLAC__stream_decoder_set_metadata_ignore(FLAC__StreamDecoder *decoder, FLAC__MetadataType type)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->private_);
+ FLAC__ASSERT(0 != decoder->protected_);
+ FLAC__ASSERT(type <= FLAC__METADATA_TYPE_VORBIS_COMMENT);
+ if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
+ return false;
+ decoder->private_->metadata_filter[type] = false;
+ if(type == FLAC__METADATA_TYPE_APPLICATION)
+ decoder->private_->metadata_filter_ids_count = 0;
+ return true;
+}
+
+FLAC__bool FLAC__stream_decoder_set_metadata_ignore_application(FLAC__StreamDecoder *decoder, const FLAC__byte id[4])
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->private_);
+ FLAC__ASSERT(0 != decoder->protected_);
+ FLAC__ASSERT(0 != id);
+ if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
+ return false;
+
+ if(!decoder->private_->metadata_filter[FLAC__METADATA_TYPE_APPLICATION])
+ return true;
+
+ FLAC__ASSERT(0 != decoder->private_->metadata_filter_ids);
+
+ if(decoder->private_->metadata_filter_ids_count == decoder->private_->metadata_filter_ids_capacity) {
+ if(0 == (decoder->private_->metadata_filter_ids = realloc(decoder->private_->metadata_filter_ids, decoder->private_->metadata_filter_ids_capacity * 2)))
+ return decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
+ decoder->private_->metadata_filter_ids_capacity *= 2;
+ }
+
+ memcpy(decoder->private_->metadata_filter_ids + decoder->private_->metadata_filter_ids_count * (FLAC__STREAM_METADATA_APPLICATION_ID_LEN/8), id, (FLAC__STREAM_METADATA_APPLICATION_ID_LEN/8));
+ decoder->private_->metadata_filter_ids_count++;
+
+ return true;
+}
+
+FLAC__bool FLAC__stream_decoder_set_metadata_ignore_all(FLAC__StreamDecoder *decoder)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->private_);
+ FLAC__ASSERT(0 != decoder->protected_);
+ if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
+ return false;
+ memset(decoder->private_->metadata_filter, 0, sizeof(decoder->private_->metadata_filter));
+ decoder->private_->metadata_filter_ids_count = 0;
+ return true;
+}
+
+FLAC__StreamDecoderState FLAC__stream_decoder_get_state(const FLAC__StreamDecoder *decoder)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->protected_);
+ return decoder->protected_->state;
+}
+
+unsigned FLAC__stream_decoder_get_channels(const FLAC__StreamDecoder *decoder)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->protected_);
+ return decoder->protected_->channels;
+}
+
+FLAC__ChannelAssignment FLAC__stream_decoder_get_channel_assignment(const FLAC__StreamDecoder *decoder)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->protected_);
+ return decoder->protected_->channel_assignment;
+}
+
+unsigned FLAC__stream_decoder_get_bits_per_sample(const FLAC__StreamDecoder *decoder)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->protected_);
+ return decoder->protected_->bits_per_sample;
+}
+
+unsigned FLAC__stream_decoder_get_sample_rate(const FLAC__StreamDecoder *decoder)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->protected_);
+ return decoder->protected_->sample_rate;
+}
+
+unsigned FLAC__stream_decoder_get_blocksize(const FLAC__StreamDecoder *decoder)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->protected_);
+ return decoder->protected_->blocksize;
+}
+
+FLAC__bool FLAC__stream_decoder_flush(FLAC__StreamDecoder *decoder)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->private_);
+ FLAC__ASSERT(0 != decoder->protected_);
+
+ if(!FLAC__bitbuffer_clear(decoder->private_->input)) {
+ decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
+ return false;
+ }
+ decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
+
+ return true;
+}
+
+FLAC__bool FLAC__stream_decoder_reset(FLAC__StreamDecoder *decoder)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->private_);
+ FLAC__ASSERT(0 != decoder->protected_);
+
+ if(!FLAC__stream_decoder_flush(decoder)) {
+ decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
+ return false;
+ }
+ decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_METADATA;
+
+ decoder->private_->samples_decoded = 0;
+
+ return true;
+}
+
+FLAC__bool FLAC__stream_decoder_process_single(FLAC__StreamDecoder *decoder)
+{
+ FLAC__bool got_a_frame;
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->protected_);
+
+ while(1) {
+ switch(decoder->protected_->state) {
+ case FLAC__STREAM_DECODER_SEARCH_FOR_METADATA:
+ if(!find_metadata_(decoder))
+ return false; /* above function sets the status for us */
+ break;
+ case FLAC__STREAM_DECODER_READ_METADATA:
+ if(!read_metadata_(decoder))
+ return false; /* above function sets the status for us */
+ else
+ return true;
+ case FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC:
+ if(!frame_sync_(decoder))
+ return true; /* above function sets the status for us */
+ break;
+ case FLAC__STREAM_DECODER_READ_FRAME:
+ if(!read_frame_(decoder, &got_a_frame))
+ return false; /* above function sets the status for us */
+ if(got_a_frame)
+ return true; /* above function sets the status for us */
+ break;
+ case FLAC__STREAM_DECODER_END_OF_STREAM:
+ case FLAC__STREAM_DECODER_ABORTED:
+ return true;
+ default:
+ FLAC__ASSERT(0);
+ return false;
+ }
+ }
+}
+
+FLAC__bool FLAC__stream_decoder_process_until_end_of_metadata(FLAC__StreamDecoder *decoder)
+{
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->protected_);
+
+ while(1) {
+ switch(decoder->protected_->state) {
+ case FLAC__STREAM_DECODER_SEARCH_FOR_METADATA:
+ if(!find_metadata_(decoder))
+ return false; /* above function sets the status for us */
+ break;
+ case FLAC__STREAM_DECODER_READ_METADATA:
+ if(!read_metadata_(decoder))
+ return false; /* above function sets the status for us */
+ break;
+ case FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC:
+ case FLAC__STREAM_DECODER_READ_FRAME:
+ case FLAC__STREAM_DECODER_END_OF_STREAM:
+ case FLAC__STREAM_DECODER_ABORTED:
+ return true;
+ default:
+ FLAC__ASSERT(0);
+ return false;
+ }
+ }
+}
+
+FLAC__bool FLAC__stream_decoder_process_until_end_of_stream(FLAC__StreamDecoder *decoder)
+{
+ FLAC__bool dummy;
+ FLAC__ASSERT(0 != decoder);
+ FLAC__ASSERT(0 != decoder->protected_);
+
+ while(1) {
+ switch(decoder->protected_->state) {
+ case FLAC__STREAM_DECODER_SEARCH_FOR_METADATA:
+ if(!find_metadata_(decoder))
+ return false; /* above function sets the status for us */
+ break;
+ case FLAC__STREAM_DECODER_READ_METADATA:
+ if(!read_metadata_(decoder))
+ return false; /* above function sets the status for us */
+ break;
+ case FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC:
+ if(!frame_sync_(decoder))
+ return true; /* above function sets the status for us */
+ break;
+ case FLAC__STREAM_DECODER_READ_FRAME:
+ if(!read_frame_(decoder, &dummy))
+ return false; /* above function sets the status for us */
+ break;
+ case FLAC__STREAM_DECODER_END_OF_STREAM:
+ case FLAC__STREAM_DECODER_ABORTED:
+ return true;
+ default:
+ FLAC__ASSERT(0);
+ return false;
+ }
+ }
+}
+
+/***********************************************************************
+ *
+ * Protected class methods
+ *
+ ***********************************************************************/
+
+unsigned FLAC__stream_decoder_get_input_bytes_unconsumed(const FLAC__StreamDecoder *decoder)
+{
+ FLAC__ASSERT(0 != decoder);
+ return FLAC__bitbuffer_get_input_bytes_unconsumed(decoder->private_->input);
+}
+
+/***********************************************************************
+ *
+ * Private class methods
+ *
+ ***********************************************************************/
+
+void set_defaults_(FLAC__StreamDecoder *decoder)
+{
+ decoder->private_->read_callback = 0;
+ decoder->private_->write_callback = 0;
+ decoder->private_->metadata_callback = 0;
+ decoder->private_->error_callback = 0;
+ decoder->private_->client_data = 0;
+
+ memset(decoder->private_->metadata_filter, 0, sizeof(decoder->private_->metadata_filter));
+ decoder->private_->metadata_filter[FLAC__METADATA_TYPE_STREAMINFO] = true;
+ decoder->private_->metadata_filter_ids_count = 0;
+}
--- /dev/null
+/* libOggFLAC - Free Lossless Audio Codec + Ogg 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 "ogg/ogg.h"
+#include "FLAC/assert.h"
+#include "OggFLAC/stream_decoder.h"
+#include "protected/stream_encoder.h"
+
+/***********************************************************************
+ *
+ * Private class method prototypes
+ *
+ ***********************************************************************/
+
+static void set_defaults_(FLAC__StreamEncoder *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__StreamEncoderPrivate {
+ OggFLAC__StreamEncoderWriteCallback write_callback;
+ void *client_data;
+ FLAC__StreamEncoder *stream_encoder;
+ /* internal vars (all the above are class settings) */
+ FLAC__bool is_first_packet;
+ FLAC__uint64 samples_written;
+ struct {
+ ogg_stream_state stream_state;
+ ogg_page page;
+ } ogg;
+} FLAC__StreamEncoderPrivate;
+
+
+/***********************************************************************
+ *
+ * Public static class data
+ *
+ ***********************************************************************/
+
+const char * const OggFLAC__StreamEncoderStateString[] = {
+ "OggFLAC__STREAM_ENCODER_OK",
+ "OggFLAC__STREAM_ENCODER_FLAC_STREAM_ENCODER_ERROR",
+ "OggFLAC__STREAM_ENCODER_INVALID_CALLBACK",
+ "OggFLAC__STREAM_ENCODER_MEMORY_ALLOCATION_ERROR",
+ "OggFLAC__STREAM_ENCODER_ALREADY_INITIALIZED",
+ "OggFLAC__STREAM_ENCODER_UNINITIALIZED"
+};
+
+
+/***********************************************************************
+ *
+ * Class constructor/destructor
+ *
+ */
+OggFLAC__StreamEncoder *OggFLAC__stream_encoder_new()
+{
+ OggFLAC__StreamEncoder *encoder;
+
+ encoder = (OggFLAC__StreamEncoder*)malloc(sizeof(OggFLAC__StreamEncoder));
+ if(encoder == 0) {
+ return 0;
+ }
+ memset(encoder, 0, sizeof(OggFLAC__StreamEncoder));
+
+ encoder->protected_ = (OggFLAC__StreamEncoderProtected*)malloc(sizeof(OggFLAC__StreamEncoderProtected));
+ if(encoder->protected_ == 0) {
+ free(encoder);
+ return 0;
+ }
+ memset(encoder->protected_, 0, sizeof(OggFLAC__StreamEncoderProtected));
+
+ encoder->private_ = (OggFLAC__StreamEncoderPrivate*)malloc(sizeof(OggFLAC__StreamEncoderPrivate));
+ if(encoder->private_ == 0) {
+ free(encoder->protected_);
+ free(encoder);
+ return 0;
+ }
+ memset(encoder->private_, 0, sizeof(OggFLAC__StreamEncoderPrivate));
+
+ 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 = OggFLAC__STREAM_ENCODER_UNINITIALIZED;
+
+ return encoder;
+}
+
+void OggFLAC__stream_encoder_delete(OggFLAC__StreamEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->protected_);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->private_->stream_encoder);
+
+ (void)OggFLAC__stream_encoder_finish(encoder);
+
+ FLAC__stream_encoder_delete(encoder->private_->stream_encoder);
+
+ free(encoder->private_);
+ free(encoder->protected_);
+ free(encoder);
+}
+
+
+/***********************************************************************
+ *
+ * Public class methods
+ *
+ ***********************************************************************/
+
+OggFLAC__StreamEncoderState OggFLAC__stream_encoder_init(FLAC__StreamEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+
+ if(encoder->protected_->state != OggFLAC__STREAM_ENCODER_UNINITIALIZED)
+ return encoder->protected_->state = OggFLAC__STREAM_ENCODER_ALREADY_INITIALIZED;
+
+ if(0 == encoder->private_->write_callback)
+ return encoder->protected_->state = OggFLAC__STREAM_ENCODER_INVALID_CALLBACK;
+
+ 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 = OggFLAC__STREAM_ENCODER_FLAC_STREAM_ENCODER_ERROR;
+
+ encoder->private_->is_first_packet = true;
+ encoder->private_->samples_written = 0;
+
+ return encoder->protected_->state = OggFLAC__STREAM_ENCODER_OK;
+}
+
+void OggFLAC__stream_encoder_finish(OggFLAC__StreamEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+
+ if(encoder->protected_->state == OggFLAC__STREAM_ENCODER_UNINITIALIZED)
+ return;
+
+ FLAC__ASSERT(0 != encoder->private_->stream_encoder);
+
+ FLAC__stream_encoder_finish(encoder->private_->stream_encoder);
+
+ set_defaults_(encoder);
+
+ encoder->protected_->state = OggFLAC__STREAM_ENCODER_UNINITIALIZED;
+}
+
+FLAC__bool FLAC__stream_encoder_set_verify(FLAC__StreamEncoder *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 != OggFLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
+ return false;
+ return FLAC__stream_encoder_set_verify(encoder->private_->stream_encoder, value);
+}
+
+FLAC__bool OggFLAC__stream_encoder_set_streamable_subset(OggFLAC__StreamEncoder *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 != OggFLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
+ return false;
+ return FLAC__stream_encoder_set_streamable_subset(encoder->private_->stream_encoder, value);
+}
+
+FLAC__bool OggFLAC__stream_encoder_set_do_mid_side_stereo(OggFLAC__StreamEncoder *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 != OggFLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
+ return false;
+ return FLAC__stream_encoder_set_do_mid_side_stereo(encoder->private_->stream_encoder, value);
+}
+
+FLAC__bool OggFLAC__stream_encoder_set_loose_mid_side_stereo(OggFLAC__StreamEncoder *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 != OggFLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
+ return false;
+ return FLAC__stream_encoder_set_loose_mid_side_stereo(encoder->private_->stream_encoder, value);
+}
+
+FLAC__bool OggFLAC__stream_encoder_set_channels(OggFLAC__StreamEncoder *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 != OggFLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
+ return false;
+ return FLAC__stream_encoder_set_channels(encoder->private_->stream_encoder, value);
+}
+
+FLAC__bool OggFLAC__stream_encoder_set_bits_per_sample(OggFLAC__StreamEncoder *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 != OggFLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
+ return false;
+ return FLAC__stream_encoder_set_bits_per_sample(encoder->private_->stream_encoder, value);
+}
+
+FLAC__bool OggFLAC__stream_encoder_set_sample_rate(OggFLAC__StreamEncoder *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 != OggFLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
+ return false;
+ return FLAC__stream_encoder_set_sample_rate(encoder->private_->stream_encoder, value);
+}
+
+FLAC__bool OggFLAC__stream_encoder_set_blocksize(OggFLAC__StreamEncoder *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 != OggFLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
+ return false;
+ return FLAC__stream_encoder_set_blocksize(encoder->private_->stream_encoder, value);
+}
+
+FLAC__bool OggFLAC__stream_encoder_set_max_lpc_order(OggFLAC__StreamEncoder *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 != OggFLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
+ return false;
+ return FLAC__stream_encoder_set_max_lpc_order(encoder->private_->stream_encoder, value);
+}
+
+FLAC__bool OggFLAC__stream_encoder_set_qlp_coeff_precision(OggFLAC__StreamEncoder *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 != OggFLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
+ return false;
+ return FLAC__stream_encoder_set_qlp_coeff_precision(encoder->private_->stream_encoder, value);
+}
+
+FLAC__bool OggFLAC__stream_encoder_set_do_qlp_coeff_prec_search(OggFLAC__StreamEncoder *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 != OggFLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
+ return false;
+ return FLAC__stream_encoder_set_do_qlp_coeff_prec_search(encoder->private_->stream_encoder, value);
+}
+
+FLAC__bool OggFLAC__stream_encoder_set_do_escape_coding(OggFLAC__StreamEncoder *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 != OggFLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
+ return false;
+ return FLAC__stream_encoder_set_do_escape_coding(encoder->private_->stream_encoder, value);
+}
+
+FLAC__bool OggFLAC__stream_encoder_set_do_exhaustive_model_search(OggFLAC__StreamEncoder *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 != OggFLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
+ return false;
+ return FLAC__stream_encoder_set_do_exhaustive_model_search(encoder->private_->stream_encoder, value);
+}
+
+FLAC__bool OggFLAC__stream_encoder_set_min_residual_partition_order(OggFLAC__StreamEncoder *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 != OggFLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
+ return false;
+ return FLAC__stream_encoder_set_min_residual_partition_order(encoder->private_->stream_encoder, value);
+}
+
+FLAC__bool OggFLAC__stream_encoder_set_max_residual_partition_order(OggFLAC__StreamEncoder *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 != OggFLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
+ return false;
+ return FLAC__stream_encoder_set_max_residual_partition_order(encoder->private_->stream_encoder, value);
+}
+
+FLAC__bool OggFLAC__stream_encoder_set_rice_parameter_search_dist(OggFLAC__StreamEncoder *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 != OggFLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
+ return false;
+ return FLAC__stream_encoder_set_rice_parameter_search_dist(encoder->private_->stream_encoder, value);
+}
+
+FLAC__bool OggFLAC__stream_encoder_set_total_samples_estimate(OggFLAC__StreamEncoder *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 != OggFLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
+ return false;
+ return FLAC__stream_encoder_set_total_samples_estimate(encoder->private_->stream_encoder, value);
+}
+
+FLAC__bool OggFLAC__stream_encoder_set_metadata(OggFLAC__StreamEncoder *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 != OggFLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
+ return false;
+ return FLAC__stream_encoder_set_metadata(encoder->private_->stream_encoder, value);
+}
+
+FLAC__bool OggFLAC__stream_encoder_set_write_callback(OggFLAC__StreamEncoder *encoder, OggFLAC__StreamEncoderWriteCallback value)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+ FLAC__ASSERT(0 != value);
+ if(encoder->protected_->state != OggFLAC__STREAM_ENCODER_UNINITIALIZED)
+ return false;
+ encoder->private_->write_callback = value;
+ return true;
+}
+
+FLAC__bool OggFLAC__stream_encoder_set_client_data(OggFLAC__StreamEncoder *encoder, void *value)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+ if(encoder->protected_->state != OggFLAC__STREAM_ENCODER_UNINITIALIZED)
+ return false;
+ encoder->private_->client_data = value;
+ return true;
+}
+
+OggFLAC__StreamEncoderState OggFLAC__stream_encoder_get_state(const OggFLAC__StreamEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+ return encoder->protected_->state;
+}
+
+FLAC__StreamEncoderState OggFLAC__stream_encoder_get_FLAC_stream_encoder_state(const OggFLAC__StreamEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+ return FLAC__stream_encoder_get_state(encoder->private_->encoder);
+}
+
+FLAC__StreamDecoderState OggFLAC__stream_encoder_get_verify_decoder_state(const OggFLAC__StreamEncoder *encoder);
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+ return FLAC__stream_encoder_get_verify_decoder_state(encoder->private_->encoder);
+}
+
+FLAC__bool OggFLAC__stream_encoder_get_verify(const OggFLAC__StreamEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+ return FLAC__stream_encoder_get_verify(encoder->private_->encoder);
+}
+
+FLAC__bool OggFLAC__stream_encoder_get_streamable_subset(const OggFLAC__StreamEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+ return FLAC__stream_encoder_get_streamable_subset(encoder->private_->encoder);
+}
+
+FLAC__bool OggFLAC__stream_encoder_get_do_mid_side_stereo(const OggFLAC__StreamEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+ return FLAC__stream_encoder_get_do_mid_side_stereo(encoder->private_->encoder);
+}
+
+FLAC__bool OggFLAC__stream_encoder_get_loose_mid_side_stereo(const OggFLAC__StreamEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+ return FLAC__stream_encoder_get_loose_mid_side_stereo(encoder->private_->encoder);
+}
+
+unsigned OggFLAC__stream_encoder_get_channels(const OggFLAC__StreamEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+ return FLAC__stream_encoder_get_channels(encoder->private_->encoder);
+}
+
+unsigned OggFLAC__stream_encoder_get_bits_per_sample(const OggFLAC__StreamEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+ return FLAC__stream_encoder_get_bits_per_sample(encoder->private_->encoder);
+}
+
+unsigned OggFLAC__stream_encoder_get_sample_rate(const OggFLAC__StreamEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+ return FLAC__stream_encoder_get_sample_rate(encoder->private_->encoder);
+}
+
+unsigned OggFLAC__stream_encoder_get_blocksize(const OggFLAC__StreamEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+ return FLAC__stream_encoder_get_blocksize(encoder->private_->encoder);
+}
+
+unsigned OggFLAC__stream_encoder_get_max_lpc_order(const OggFLAC__StreamEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+ return FLAC__stream_encoder_get_max_lpc_order(encoder->private_->encoder);
+}
+
+unsigned OggFLAC__stream_encoder_get_qlp_coeff_precision(const OggFLAC__StreamEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+ return FLAC__stream_encoder_get_qlp_coeff_precision(encoder->private_->encoder);
+}
+
+FLAC__bool OggFLAC__stream_encoder_get_do_qlp_coeff_prec_search(const OggFLAC__StreamEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+ return FLAC__stream_encoder_get_do_qlp_coeff_prec_search(encoder->private_->encoder);
+}
+
+FLAC__bool OggFLAC__stream_encoder_get_do_escape_coding(const OggFLAC__StreamEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+ return FLAC__stream_encoder_get_do_escape_coding(encoder->private_->encoder);
+}
+
+FLAC__bool OggFLAC__stream_encoder_get_do_exhaustive_model_search(const OggFLAC__StreamEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+ return FLAC__stream_encoder_get_do_exhaustive_model_search(encoder->private_->encoder);
+}
+
+unsigned OggFLAC__stream_encoder_get_min_residual_partition_order(const OggFLAC__StreamEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+ return FLAC__stream_encoder_get_min_residual_partition_order(encoder->private_->encoder);
+}
+
+unsigned OggFLAC__stream_encoder_get_max_residual_partition_order(const OggFLAC__StreamEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+ return FLAC__stream_encoder_get_max_residual_partition_order(encoder->private_->encoder);
+}
+
+unsigned OggFLAC__stream_encoder_get_rice_parameter_search_dist(const OggFLAC__StreamEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+ return FLAC__stream_encoder_get_rice_parameter_search_dist(encoder->private_->encoder);
+}
+
+FLAC__uint64 OggFLAC__stream_encoder_get_total_samples_estimate(const OggFLAC__StreamEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+ return FLAC__stream_encoder_get_total_samples_estimate(encoder->private_->encoder);
+}
+
+FLAC__bool FLAC__stream_encoder_process(FLAC__StreamEncoder *encoder, const FLAC__int32 * const buffer[], unsigned samples)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+ return FLAC__stream_encoder_process(encoder->private_->encoder, buffer, samples);
+}
+
+FLAC__bool FLAC__stream_encoder_process_interleaved(FLAC__StreamEncoder *encoder, const FLAC__int32 buffer[], unsigned samples)
+{
+ FLAC__ASSERT(0 != encoder);
+ FLAC__ASSERT(0 != encoder->private_);
+ FLAC__ASSERT(0 != encoder->protected_);
+ return FLAC__stream_encoder_process_interleaved(encoder->private_->encoder, buffer, samples);
+}
+
+/***********************************************************************
+ *
+ * Private class methods
+ *
+ ***********************************************************************/
+
+void set_defaults_(FLAC__StreamEncoder *encoder)
+{
+ FLAC__ASSERT(0 != encoder);
+
+ encoder->private_->write_callback = 0;
+ encoder->private_->client_data = 0;
+}
+
+FLAC__StreamEncoderWriteStatus write_callback_(const FLAC__StreamEncoder *encoder, const FLAC__byte buffer[], unsigned bytes, unsigned samples, unsigned current_frame, void *client_data)
+{
+ ogg_packet packet;
+
+ encoder->private_->samples_written += samples;
+
+ memset(&packet, 0, sizeof(packet));
+ packet.packet = (unsigned char *)buffer;
+ packet.granulepos = encoder->private_->samples_written - 1;
+ /*@@@ WATCHOUT:
+ * This depends on the behavior of FLAC__StreamEncoder that 'samples'
+ * will be 0 for metadata writes.
+ */
+ packet.packetno = (samples == 0? -1 : (int)current_frame);
+ packet.bytes = bytes;
+
+ if(encoder->private_->is_first_packet) {
+ packet.b_o_s = 1;
+ encoder->private_->is_first_packet = false;
+ }
+
+ if(encoder->private_->total_samples_to_encode > 0 && encoder->private_->total_samples_to_encode == encoder->private_->samples_written)
+ packet.e_o_s = 1;
+
+ ogg_stream_packetin(&encoder->private_->ogg.stream_state, &packet);
+
+ while(ogg_stream_pageout(&encoder->private_->ogg.stream_state, &encoder->private_->ogg.page) != 0) {
+ if(encoder->private_->write_callback(encoder, encoder->private_->ogg.page.header, encoder->private_->ogg.page.header_len) != FLAC__STREAM_ENCODER_WRITE_STATUS_OK)
+ return FLAC__STREAM_ENCODER_WRITE_STATUS_FATAL_ERROR;
+
+ if(encoder->private_->write_callback(encoder, encoder->private_->ogg.page.body, encoder->private_->ogg.page.body_len) != FLAC__STREAM_ENCODER_WRITE_STATUS_OK)
+ return FLAC__STREAM_ENCODER_WRITE_STATUS_FATAL_ERROR;
+ }
+
+ return FLAC__STREAM_ENCODER_WRITE_STATUS_OK;
+}
+
+void metadata_callback_(const FLAC__StreamEncoder *encoder, const FLAC__StreamMetadata *metadata, void *client_data)
+{
+ /*
+ * We don't try to go back an update metadata blocks by mucking
+ * around inside the Ogg layer. Maybe someday we will care to
+ * and an OggFLAC__SeekableStreamEncoder and OggFLAC__FileEncoder
+ * will be possible but it may just never be useful.
+ */
+ (void)encoder, (void)metadata, (void)client_data;
+}
projects / platform / upstream / flac.git / commitdiff