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/* $Id: Mp4Mux.c,v 1.24 2004/03/08 13:42:29 titer Exp $
This file is part of the HandBrake source code.
Homepage: <http://handbrake.m0k.org/>.
It may be used under the terms of the GNU General Public License. */
#include "HBInternal.h"
/* libmp4v2 */
#include "mp4.h"
int64_t videoFrames;
int64_t videoBytes;
int64_t audioFrames;
int64_t audioBytes;
/* Local prototypes */
static void Mp4MuxThread( void * );
struct HBMp4Mux
{
HBHandle * handle;
HBTitle * title;
volatile int die;
HBThread * thread;
};
HBMp4Mux * HBMp4MuxInit( HBHandle * handle, HBTitle * title )
{
HBMp4Mux * m;
if( !( m = malloc( sizeof( HBMp4Mux ) ) ) )
{
HBLog( "HBMp4MuxInit: malloc() failed, gonna crash" );
return NULL;
}
videoFrames = 0;
videoBytes = 0;
audioFrames = 0;
audioBytes = 0;
m->handle = handle;
m->title = title;
m->die = 0;
m->thread = HBThreadInit( "mp4 muxer", Mp4MuxThread, m,
HB_NORMAL_PRIORITY );
return m;
}
void HBMp4MuxClose( HBMp4Mux ** _m )
{
HBMp4Mux * m = *_m;
FILE * file;
long size;
m->die = 1;
HBThreadClose( &m->thread );
file = fopen( m->title->file, "r" );
if( file )
{
fseek( file, 0, SEEK_END );
size = ftell( file );
fclose( file );
HBLog( "HBMp4Mux: videoFrames=%lld, %lld bytes",
videoFrames, videoBytes );
HBLog( "HBMp4Mux: audioFrames=%lld, %lld bytes",
audioFrames, audioBytes );
HBLog( "HBMp4Mux: overhead=%.2f bytes / frame",
( (float) size - videoBytes - audioBytes ) /
( videoFrames + audioFrames ) );
}
free( m );
*_m = NULL;
}
static void Mp4MuxThread( void * _m )
{
HBMp4Mux * m = (HBMp4Mux*) _m;
HBTitle * title = m->title;
HBAudio * audio;
HBBuffer * buffer;
char tmpFile[1024];
int audioCount = HBListCount( m->title->ripAudioList );
int i;
MP4FileHandle file;
/* Wait until we have one encoded frame for each track */
while( !m->die && !HBFifoSize( title->outFifo ) )
{
HBSnooze( 10000 );
}
for( i = 0; i < audioCount; i++ )
{
audio = HBListItemAt( title->ripAudioList, i );
while( !m->die && !HBFifoSize( audio->outFifo ) )
{
HBSnooze( 10000 );
}
}
if( m->die )
{
return;
}
/* Write file headers */
file = MP4Create( title->file, 0, 0 );
MP4SetTimeScale( file, 90000 );
title->track = MP4AddVideoTrack( file, 90000,
MP4_INVALID_DURATION,
title->outWidth, title->outHeight,
MP4_MPEG4_VIDEO_TYPE );
MP4SetVideoProfileLevel( file, 0x03 );
MP4SetTrackESConfiguration( file, title->track, title->esConfig,
title->esConfigLength );
for( i = 0; i < audioCount; i++ )
{
audio = HBListItemAt( title->ripAudioList, i );
audio->track = MP4AddAudioTrack( file, audio->outSampleRate,
1024, MP4_MPEG4_AUDIO_TYPE );
MP4SetAudioProfileLevel( file, 0x0F );
MP4SetTrackESConfiguration( file, audio->track, audio->esConfig,
audio->esConfigLength );
}
for( ;; )
{
/* Wait until we have one encoded frame for each track */
if( !HBFifoWait( title->outFifo ) )
{
m->die = 1;
break;
}
for( i = 0; i < audioCount; i++ )
{
audio = HBListItemAt( title->ripAudioList, i );
if( !HBFifoWait( audio->outFifo ) )
{
m->die = 1;
break;
}
}
if( m->die )
{
break;
}
/* Interleave frames in the same order than they were in the
original MPEG stream */
audio = NULL;
for( i = 0; i < audioCount; i++ )
{
HBAudio * otherAudio;
otherAudio = HBListItemAt( title->ripAudioList, i );
if( !audio || HBFifoPosition( otherAudio->outFifo ) <
HBFifoPosition( audio->outFifo ) )
{
audio = otherAudio;
}
}
if( !audio || HBFifoPosition( title->outFifo ) <
HBFifoPosition( audio->outFifo ) )
{
buffer = HBFifoPop( title->outFifo );
MP4WriteSample( file, title->track, buffer->data,
buffer->size,
(uint64_t) 90000 * title->rateBase / title->rate,
0, buffer->keyFrame );
videoFrames++;
videoBytes += buffer->size;
HBBufferClose( &buffer );
}
else
{
buffer = HBFifoPop( audio->outFifo );
MP4WriteSample( file, audio->track, buffer->data,
buffer->size, MP4_INVALID_DURATION,
0, buffer->keyFrame );
audioFrames++;
audioBytes += buffer->size;
HBBufferClose( &buffer );
}
}
MP4Close( file );
HBLog( "HBMp4Mux: making the file ISMA compliant" );
if( !MP4MakeIsmaCompliant( title->file, 0 /*MP4_DETAILS_ALL*/, 1 ) )
{
HBLog( "HBMp4Mux: MP4MakeIsmaCompliant() failed" );
}
HBLog( "HBMp4Mux: optimizing" );
sprintf( tmpFile, "%s.tmp", title->file );
tmpFile[strlen( title->file ) + 4] = '\0';
if( !MP4Optimize( title->file, tmpFile, 0 /*MP4_DETAILS_ALL*/ ) )
{
HBLog( "HBMp4Mux: MP4Optimize() failed" );
unlink( tmpFile );
}
else
{
rename( tmpFile, title->file );
}
}
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