src/libFLAC++/file_encoder.cpp

   1 /* libFLAC++ - Free Lossless Audio Codec library
   2  * Copyright (C) 2002,2003,2004,2005,2006  Josh Coalson
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions
   6  * are met:
   7  *
   8  * - Redistributions of source code must retain the above copyright
   9  * notice, this list of conditions and the following disclaimer.
  10  *
  11  * - Redistributions in binary form must reproduce the above copyright
  12  * notice, this list of conditions and the following disclaimer in the
  13  * documentation and/or other materials provided with the distribution.
  14  *
  15  * - Neither the name of the Xiph.org Foundation nor the names of its
  16  * contributors may be used to endorse or promote products derived from
  17  * this software without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  21  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  22  * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
  23  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  24  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  25  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  26  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  27  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  28  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  29  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 #include "FLAC++/encoder.h"
  33 #include "FLAC/assert.h"
  34
  35 #ifdef _MSC_VER
  36 // warning C4800: 'int' : forcing to bool 'true' or 'false' (performance warning)
  37 #pragma warning ( disable : 4800 )
  38 #endif
  39
  40 namespace FLAC {
  41         namespace Encoder {
  42
  43                 File::File():
  44                         Stream()
  45                 { }
  46
  47                 File::~File()
  48                 {
  49                 }
  50
  51                 ::FLAC__StreamEncoderInitStatus File::init(FILE *file)
  52                 {
  53                         FLAC__ASSERT(is_valid());
  54                         return ::FLAC__stream_encoder_init_FILE(encoder_, file, progress_callback_, /*client_data=*/(void*)this);
  55                 }
  56
  57                 ::FLAC__StreamEncoderInitStatus File::init(const char *filename)
  58                 {
  59                         FLAC__ASSERT(is_valid());
  60                         return ::FLAC__stream_encoder_init_file(encoder_, filename, progress_callback_, /*client_data=*/(void*)this);
  61                 }
  62
  63                 ::FLAC__StreamEncoderInitStatus File::init(const std::string &filename)
  64                 {
  65                         return init(filename.c_str());
  66                 }
  67
  68                 // This is a dummy to satisfy the pure virtual from Stream; the
  69                 // read callback will never be called since we are initializing
  70                 // with FLAC__stream_decoder_init_FILE() or
  71                 // FLAC__stream_decoder_init_file() and those supply the read
  72                 // callback internally.
  73                 ::FLAC__StreamEncoderWriteStatus File::write_callback(const FLAC__byte buffer[], unsigned bytes, unsigned samples, unsigned current_frame)
  74                 {
  75                         (void)buffer, (void)bytes, (void)samples, (void)current_frame;
  76                         FLAC__ASSERT(false);
  77                         return ::FLAC__STREAM_ENCODER_WRITE_STATUS_FATAL_ERROR; // double protection
  78                 }
  79
  80                 void File::progress_callback(FLAC__uint64 bytes_written, FLAC__uint64 samples_written, unsigned frames_written, unsigned total_frames_estimate)
  81                 {
  82                         (void)bytes_written, (void)samples_written, (void)frames_written, (void)total_frames_estimate;
  83                 }
  84
  85                 void File::progress_callback_(const ::FLAC__StreamEncoder *encoder, FLAC__uint64 bytes_written, FLAC__uint64 samples_written, unsigned frames_written, unsigned total_frames_estimate, void *client_data)
  86                 {
  87                         (void)encoder;
  88                         FLAC__ASSERT(0 != client_data);
  89                         File *instance = reinterpret_cast<File *>(client_data);
  90                         FLAC__ASSERT(0 != instance);
  91                         instance->progress_callback(bytes_written, samples_written, frames_written, total_frames_estimate);
  92                 }
  93
  94         }
  95 }