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/* $Id: Mp4Mux.c,v 1.31 2004/05/13 21:10:56 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"
struct HBMux
{
HB_MUX_COMMON_MEMBERS
HBHandle * handle;
HBTitle * title;
MP4FileHandle file;
/* QuickTime sync workaround */
int sampleRate;
uint64_t frames;
uint64_t date;
};
typedef struct
{
int track;
} Mp4MuxData;
/* Local prototypes */
static int Mp4Start( HBMux * );
static int Mp4MuxVideo( HBMux *, void *, HBBuffer *);
static int Mp4MuxAudio( HBMux *, void *, HBBuffer *);
static int Mp4End( HBMux * );
HBMux * HBMp4MuxInit( HBHandle * handle, HBTitle * title )
{
HBMux * m;
HBAudio * audio;
int i;
if( !( m = calloc( sizeof( HBMux ), 1 ) ) )
{
HBLog( "HBMp4Mux: malloc() failed, gonna crash" );
return NULL;
}
m->start = Mp4Start;
m->muxVideo = Mp4MuxVideo;
m->muxAudio = Mp4MuxAudio;
m->end = Mp4End;
m->handle = handle;
m->title = title;
/* Alloc muxer data */
title->muxData = calloc( sizeof( Mp4MuxData ), 1 );
for( i = 0; i < HBListCount( title->ripAudioList ); i++ )
{
audio = (HBAudio *) HBListItemAt( title->ripAudioList, i );
audio->muxData = calloc( sizeof( Mp4MuxData ), 1 );
}
return m;
}
void HBMp4MuxClose( HBMux ** _m )
{
HBMux * m = *_m;
HBTitle * title = m->title;
HBAudio * audio;
int i;
/* Free muxer data */
free( title->muxData );
for( i = 0; i < HBListCount( title->ripAudioList ); i++ )
{
audio = (HBAudio *) HBListItemAt( title->ripAudioList, i );
free( audio->muxData );
}
free( m );
*_m = NULL;
}
static int Mp4Start( HBMux * m )
{
HBTitle * title = m->title;
HBAudio * audio;
Mp4MuxData * muxData;
int i;
/* Create file */
m->file = MP4Create( title->file, 0, 0 );
/* Add video track */
muxData = (Mp4MuxData *) title->muxData;
if( HBListCount( title->ripAudioList ) )
{
/* QuickTime sync workaround */
audio = (HBAudio *) HBListItemAt( title->ripAudioList, 0 );
m->sampleRate = audio->outSampleRate;
MP4SetTimeScale( m->file, m->sampleRate );
muxData->track = MP4AddVideoTrack( m->file, m->sampleRate,
MP4_INVALID_DURATION, title->outWidth, title->outHeight,
MP4_MPEG4_VIDEO_TYPE );
}
else
{
MP4SetTimeScale( m->file, 90000 );
muxData->track = MP4AddVideoTrack( m->file, 90000,
(uint64_t) 90000 * title->rateBase / title->rate,
title->outWidth, title->outHeight,
MP4_MPEG4_VIDEO_TYPE );
}
MP4SetVideoProfileLevel( m->file, 0x03 );
MP4SetTrackESConfiguration( m->file, muxData->track,
title->esConfig, title->esConfigLength );
/* Add audio tracks */
for( i = 0; i < HBListCount( title->ripAudioList ); i++ )
{
audio = HBListItemAt( title->ripAudioList, i );
muxData = (Mp4MuxData *) audio->muxData;
muxData->track = MP4AddAudioTrack( m->file,
audio->outSampleRate, 1024, MP4_MPEG4_AUDIO_TYPE );
MP4SetAudioProfileLevel( m->file, 0x0F );
MP4SetTrackESConfiguration( m->file, muxData->track,
audio->esConfig, audio->esConfigLength );
}
return 0;
}
static int Mp4MuxVideo( HBMux * m, void * _muxData, HBBuffer * buffer )
{
Mp4MuxData * muxData = (Mp4MuxData *) _muxData;
HBTitle * title = m->title;
if( HBListCount( title->ripAudioList ) )
{
/* QuickTime sync workaround */
int dur = (uint64_t) m->sampleRate * ( ++m->frames ) *
title->rateBase / title->rate - m->date;
MP4WriteSample( m->file, muxData->track, buffer->data, buffer->size,
dur, 0, buffer->keyFrame );
m->date += dur;
}
else
{
MP4WriteSample( m->file, muxData->track, buffer->data,
buffer->size, MP4_INVALID_DURATION, 0,
buffer->keyFrame );
}
return 0;
}
static int Mp4MuxAudio( HBMux * m, void * _muxData, HBBuffer * buffer )
{
Mp4MuxData * muxData = (Mp4MuxData *) _muxData;
MP4WriteSample( m->file, muxData->track, buffer->data, buffer->size,
MP4_INVALID_DURATION, 0, buffer->keyFrame );
return 0;
}
static int Mp4End( HBMux * m )
{
HBTitle * title = m->title;
char tmpFile[1024];
MP4Close( m->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 );
}
return 0;
}
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