1 /*****************************************************************************
2 * mp4.c : MP4 file input module for vlc
3 *****************************************************************************
4 * Copyright (C) 2001 VideoLAN
5 * $Id: mp4.c,v 1.49 2004/01/06 01:41:10 jlj Exp $
6 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
21 *****************************************************************************/
23 /*****************************************************************************
25 *****************************************************************************/
26 #include <stdlib.h> /* malloc(), free() */
29 #include <vlc/input.h>
30 #include <vlc_playlist.h>
36 /*****************************************************************************
38 *****************************************************************************/
39 static int Open ( vlc_object_t * );
40 static void Close( vlc_object_t * );
43 set_description( _("MP4 demuxer") );
44 set_capability( "demux", 242 );
45 set_callbacks( Open, Close );
48 /*****************************************************************************
50 *****************************************************************************/
51 static int Demux ( input_thread_t * );
52 static int DemuxRef( input_thread_t *p_input )
56 static int Seek ( input_thread_t *, mtime_t );
57 static int Control ( input_thread_t *, int, va_list );
59 /*****************************************************************************
60 * Declaration of local function
61 *****************************************************************************/
62 static void MP4_TrackCreate ( input_thread_t *, track_data_mp4_t *, MP4_Box_t *);
63 static void MP4_TrackDestroy( input_thread_t *, track_data_mp4_t * );
65 static int MP4_TrackSelect ( input_thread_t *, track_data_mp4_t *, mtime_t );
66 static void MP4_TrackUnselect(input_thread_t *, track_data_mp4_t * );
68 static int MP4_TrackSeek ( input_thread_t *, track_data_mp4_t *, mtime_t );
70 static uint64_t MP4_GetTrackPos ( track_data_mp4_t * );
71 static int MP4_TrackSampleSize( track_data_mp4_t * );
72 static int MP4_TrackNextSample( input_thread_t *, track_data_mp4_t * );
75 if( p ) { free( p ); (p) = NULL;}
77 /*****************************************************************************
78 * Open: check file and initializes MP4 structures
79 *****************************************************************************/
80 static int Open( vlc_object_t * p_this )
82 input_thread_t *p_input = (input_thread_t *)p_this;
93 vlc_bool_t b_seekable;
95 /* a little test to see if it could be a mp4 */
96 if( stream_Peek( p_input->s, &p_peek, 8 ) < 8 )
98 msg_Warn( p_input, "MP4 plugin discarded (cannot peek)" );
101 switch( VLC_FOURCC( p_peek[4], p_peek[5], p_peek[6], p_peek[7] ) )
114 msg_Warn( p_input, "MP4 plugin discarded (not a valid file)" );
119 stream_Control( p_input->s, STREAM_CAN_SEEK, &b_seekable );
122 msg_Warn( p_input, "MP4 plugin discarded (unseekable)" );
126 /*Set exported functions */
127 p_input->pf_demux = Demux;
128 p_input->pf_demux_control = Control;
130 /* create our structure that will contains all data */
131 p_input->p_demux_data = p_sys = malloc( sizeof( demux_sys_t ) );
132 memset( p_sys, 0, sizeof( demux_sys_t ) );
134 /* Now load all boxes ( except raw data ) */
135 if( ( p_sys->p_root = MP4_BoxGetRoot( p_input ) ) == NULL )
137 msg_Warn( p_input, "MP4 plugin discarded (not a valid file)" );
141 MP4_BoxDumpStructure( p_input, p_sys->p_root );
143 if( ( p_ftyp = MP4_BoxGet( p_sys->p_root, "/ftyp" ) ) )
145 switch( p_ftyp->data.p_ftyp->i_major_brand )
149 "ISO Media file (isom) version %d.",
150 p_ftyp->data.p_ftyp->i_minor_version );
154 "unrecognized major file specification (%4.4s).",
155 (char*)&p_ftyp->data.p_ftyp->i_major_brand );
161 msg_Dbg( p_input, "file type box missing (assuming ISO Media file)" );
164 /* the file need to have one moov box */
165 if( MP4_BoxCount( p_sys->p_root, "/moov" ) <= 0 )
167 MP4_Box_t *p_foov = MP4_BoxGet( p_sys->p_root, "/foov" );
171 msg_Err( p_input, "MP4 plugin discarded (no moov box)" );
174 /* we have a free box as a moov, rename it */
175 p_foov->i_type = FOURCC_moov;
178 if( ( p_rmra = MP4_BoxGet( p_sys->p_root, "/moov/rmra" ) ) )
180 playlist_t *p_playlist;
181 int i_count = MP4_BoxCount( p_rmra, "rmda" );
184 msg_Dbg( p_input, "detected playlist mov file (%d ref)", i_count );
187 (playlist_t *)vlc_object_find( p_input,
192 //p_playlist->pp_items[p_playlist->i_index]->b_autodeletion = VLC_TRUE;
193 for( i = 0; i < i_count; i++ )
195 MP4_Box_t *p_rdrf = MP4_BoxGet( p_rmra, "rmda[%d]/rdrf", i );
199 if( !p_rdrf || !( psz_ref = p_rdrf->data.p_rdrf->psz_ref ) )
203 i_ref_type = p_rdrf->data.p_rdrf->i_ref_type;
205 msg_Dbg( p_input, "new ref=`%s' type=%4.4s",
206 psz_ref, (char*)&i_ref_type );
208 if( i_ref_type == VLC_FOURCC( 'u', 'r', 'l', ' ' ) )
210 if( strstr( psz_ref, "qt5gateQT" ) )
212 msg_Dbg( p_input, "ignoring pseudo ref =`%s'", psz_ref );
215 if( !strncmp( psz_ref, "http://", 7 ) ||
216 !strncmp( psz_ref, "rtsp://", 7 ) )
218 msg_Dbg( p_input, "adding ref = `%s'", psz_ref );
219 playlist_Add( p_playlist, psz_ref, psz_ref,
220 PLAYLIST_APPEND, PLAYLIST_END );
224 /* msg dbg relative ? */
225 char *psz_absolute = alloca( strlen( p_input->psz_source ) + strlen( psz_ref ) + 1);
226 char *end = strrchr( p_input->psz_source, '/' );
230 int i_len = end + 1 - p_input->psz_source;
232 strncpy( psz_absolute, p_input->psz_source, i_len);
233 psz_absolute[i_len] = '\0';
237 strcpy( psz_absolute, "" );
239 strcat( psz_absolute, psz_ref );
240 msg_Dbg( p_input, "adding ref = `%s'", psz_absolute );
241 playlist_Add( p_playlist, psz_absolute, psz_absolute,
242 PLAYLIST_APPEND, PLAYLIST_END );
247 msg_Err( p_input, "unknown ref type=%4.4s FIXME (send a bug report)", (char*)&p_rdrf->data.p_rdrf->i_ref_type );
250 vlc_object_release( p_playlist );
254 msg_Err( p_input, "can't find playlist" );
258 if( !(p_mvhd = MP4_BoxGet( p_sys->p_root, "/moov/mvhd" ) ) )
262 msg_Err( p_input, "cannot find /moov/mvhd" );
267 msg_Warn( p_input, "cannot find /moov/mvhd (pure ref file)" );
268 p_input->pf_demux = DemuxRef;
274 p_sys->i_timescale = p_mvhd->data.p_mvhd->i_timescale;
275 p_sys->i_duration = p_mvhd->data.p_mvhd->i_duration;
278 if( !( p_sys->i_tracks = MP4_BoxCount( p_sys->p_root, "/moov/trak" ) ) )
280 msg_Err( p_input, "cannot find any /moov/trak" );
283 msg_Dbg( p_input, "find %d track%c",
285 p_sys->i_tracks ? 's':' ' );
287 /* create one program */
288 vlc_mutex_lock( &p_input->stream.stream_lock );
289 if( input_InitStream( p_input, 0 ) == -1)
291 vlc_mutex_unlock( &p_input->stream.stream_lock );
292 msg_Err( p_input, "cannot init stream" );
295 if( p_sys->i_duration/p_sys->i_timescale > 0 )
297 p_input->stream.i_mux_rate =
298 p_input->stream.p_selected_area->i_size / 50 /
299 ( p_sys->i_duration / p_sys->i_timescale );
303 p_input->stream.i_mux_rate = 0;
305 vlc_mutex_unlock( &p_input->stream.stream_lock );
308 /* allocate memory */
309 p_sys->track = calloc( p_sys->i_tracks, sizeof( track_data_mp4_t ) );
310 memset( p_sys->track, 0, p_sys->i_tracks * sizeof( track_data_mp4_t ) );
312 /* now process each track and extract all usefull informations */
313 for( i = 0; i < p_sys->i_tracks; i++ )
315 p_trak = MP4_BoxGet( p_sys->p_root, "/moov/trak[%d]", i );
316 MP4_TrackCreate( p_input, &p_sys->track[i], p_trak );
318 if( p_sys->track[i].b_ok )
321 switch( p_sys->track[i].fmt.i_cat )
334 msg_Dbg( p_input, "adding track[Id 0x%x] %s (%s) language %s",
335 p_sys->track[i].i_track_ID,
337 p_sys->track[i].b_enable ? "enable":"disable",
338 p_sys->track[i].fmt.psz_language ? p_sys->track[i].fmt.psz_language : "undef" );
342 msg_Dbg( p_input, "ignoring track[Id 0x%x]", p_sys->track[i].i_track_ID );
351 MP4_BoxFree( p_input, p_sys->p_root );
357 /*****************************************************************************
358 * Demux: read packet and send them to decoders
359 *****************************************************************************
360 * TODO check for newly selected track (ie audio upt to now )
361 *****************************************************************************/
362 static int Demux( input_thread_t *p_input )
364 demux_sys_t *p_sys = p_input->p_demux_data;
365 unsigned int i_track;
368 unsigned int i_track_selected;
369 vlc_bool_t b_play_audio;
371 /* check for newly selected/unselected track */
372 for( i_track = 0, i_track_selected = 0; i_track < p_sys->i_tracks; i_track++ )
374 #define track p_sys->track[i_track]
375 if( track.b_selected && track.i_sample >= track.i_sample_count )
377 msg_Warn( p_input, "track[0x%x] will be disabled", track.i_track_ID );
378 MP4_TrackUnselect( p_input, &track );
380 else if( track.b_ok )
383 es_out_Control( p_input->p_es_out, ES_OUT_GET_ES_STATE, track.p_es, &b );
385 if( track.b_selected && !b )
387 MP4_TrackUnselect( p_input, &track );
389 else if( !track.b_selected && b)
391 MP4_TrackSelect( p_input, &track, MP4_GetMoviePTS( p_sys ) );
394 if( track.b_selected )
402 if( i_track_selected <= 0 )
404 msg_Warn( p_input, "no track selected, exiting..." );
408 /* first wait for the good time to read a packet */
409 input_ClockManageRef( p_input,
410 p_input->stream.p_selected_program,
413 /* update pcr XXX in mpeg scale so in 90000 unit/s */
414 p_sys->i_pcr = MP4_GetMoviePTS( p_sys ) * 9 / 100;
416 /* we will read 100ms for each stream so ...*/
417 p_sys->i_time += __MAX( p_sys->i_timescale / 10 , 1 );
419 /* Check if we need to send the audio data to decoder */
420 b_play_audio = !p_input->stream.control.b_mute;
422 for( i_track = 0; i_track < p_sys->i_tracks; i_track++ )
424 #define track p_sys->track[i_track]
427 MP4_GetTrackPTS( &track ) >= MP4_GetMoviePTS( p_sys ) )
432 while( MP4_GetTrackPTS( &track ) < MP4_GetMoviePTS( p_sys ) )
435 if( !b_play_audio && track.fmt.i_cat == AUDIO_ES )
437 if( MP4_TrackNextSample( p_input, &track ) )
447 if( stream_Seek( p_input->s, MP4_GetTrackPos( &track ) ) )
449 msg_Warn( p_input, "track[0x%x] will be disabled (eof?)", track.i_track_ID );
450 MP4_TrackUnselect( p_input, &track );
455 if( ( p_block = stream_Block( p_input->s,
456 MP4_TrackSampleSize( &track ) ) ) == NULL )
458 msg_Warn( p_input, "track[0x%x] will be disabled (eof?)", track.i_track_ID );
459 MP4_TrackUnselect( p_input, &track );
463 if( track.p_drms != NULL )
465 drms_decrypt( track.p_drms,
466 (uint32_t *)p_block->p_buffer,
470 if( track.fmt.i_cat == VIDEO_ES )
472 /* FIXME sometime we can calculate PTS */
475 input_ClockGetTS( p_input,
476 p_input->stream.p_selected_program,
477 MP4_GetTrackPTS( &track ) * 9/100 );
483 input_ClockGetTS( p_input,
484 p_input->stream.p_selected_program,
485 MP4_GetTrackPTS( &track ) * 9/100 );
488 es_out_Send( p_input->p_es_out, track.p_es, p_block );
490 if( MP4_TrackNextSample( p_input, &track ) )
501 /*****************************************************************************
502 * Seek: Got to i_date
503 ******************************************************************************/
504 static int Seek ( input_thread_t *p_input, mtime_t i_date )
506 demux_sys_t *p_sys = p_input->p_demux_data;
507 unsigned int i_track;
508 /* First update update global time */
509 p_sys->i_time = i_date * p_sys->i_timescale / 1000000;
510 p_sys->i_pcr = i_date* 9 / 100;
512 /* Now for each stream try to go to this time */
513 for( i_track = 0; i_track < p_sys->i_tracks; i_track++ )
515 #define track p_sys->track[i_track]
516 if( track.b_ok && track.b_selected )
518 MP4_TrackSeek( p_input, &track, i_date );
525 /*****************************************************************************
527 *****************************************************************************/
528 static int Control ( input_thread_t *p_input, int i_query, va_list args )
530 demux_sys_t *p_sys = p_input->p_demux_data;
537 case DEMUX_GET_POSITION:
538 pf = (double*)va_arg( args, double * );
539 if( p_sys->i_duration > 0 )
541 *pf = (double)p_sys->i_time / (double)p_sys->i_duration;
549 case DEMUX_SET_POSITION:
550 f = (double)va_arg( args, double );
553 (double)p_sys->i_duration /
554 (double)p_sys->i_timescale );
555 return Seek( p_input, i64 );
558 pi64 = (int64_t*)va_arg( args, int64_t * );
559 *pi64 = (mtime_t)1000000 *
560 (mtime_t)p_sys->i_time /
561 (mtime_t)p_sys->i_timescale;
565 i64 = (int64_t)va_arg( args, int64_t );
566 return Seek( p_input, i64 );
568 case DEMUX_GET_LENGTH:
569 pi64 = (int64_t*)va_arg( args, int64_t * );
570 *pi64 = (mtime_t)1000000 *
571 (mtime_t)p_sys->i_duration /
572 (mtime_t)p_sys->i_timescale;
575 msg_Warn( p_input, "DEMUX_GET_FPS unimplemented !!" );
578 msg_Err( p_input, "control query unimplemented !!!" );
579 return demux_vaControlDefault( p_input, i_query, args );
583 /*****************************************************************************
584 * Close: frees unused data
585 *****************************************************************************/
586 static void Close ( vlc_object_t * p_this )
588 unsigned int i_track;
589 input_thread_t * p_input = (input_thread_t *)p_this;
590 demux_sys_t *p_sys = p_input->p_demux_data;
592 msg_Dbg( p_input, "freeing all memory" );
594 MP4_BoxFree( p_input, p_sys->p_root );
595 for( i_track = 0; i_track < p_sys->i_tracks; i_track++ )
597 MP4_TrackDestroy( p_input, &p_sys->track[i_track] );
599 FREE( p_sys->track );
606 /****************************************************************************
607 * Local functions, specific to vlc
608 ****************************************************************************/
610 /* now create basic chunk data, the rest will be filled by MP4_CreateSamplesIndex */
611 static int TrackCreateChunksIndex( input_thread_t *p_input,
612 track_data_mp4_t *p_demux_track )
614 MP4_Box_t *p_co64; /* give offset for each chunk, same for stco and co64 */
617 unsigned int i_chunk;
618 unsigned int i_index, i_last;
620 if( ( !(p_co64 = MP4_BoxGet( p_demux_track->p_stbl, "stco" ) )&&
621 !(p_co64 = MP4_BoxGet( p_demux_track->p_stbl, "co64" ) ) )||
622 ( !(p_stsc = MP4_BoxGet( p_demux_track->p_stbl, "stsc" ) ) ))
624 return( VLC_EGENERIC );
627 p_demux_track->i_chunk_count = p_co64->data.p_co64->i_entry_count;
628 if( !p_demux_track->i_chunk_count )
630 msg_Warn( p_input, "no chunk defined" );
631 return( VLC_EGENERIC );
633 p_demux_track->chunk = calloc( p_demux_track->i_chunk_count,
634 sizeof( chunk_data_mp4_t ) );
636 /* first we read chunk offset */
637 for( i_chunk = 0; i_chunk < p_demux_track->i_chunk_count; i_chunk++ )
639 p_demux_track->chunk[i_chunk].i_offset =
640 p_co64->data.p_co64->i_chunk_offset[i_chunk];
643 /* now we read index for SampleEntry( soun vide mp4a mp4v ...)
644 to be used for the sample XXX begin to 1
645 We construct it begining at the end */
646 i_last = p_demux_track->i_chunk_count; /* last chunk proceded */
647 i_index = p_stsc->data.p_stsc->i_entry_count;
650 msg_Warn( p_input, "cannot read chunk table or table empty" );
651 return( VLC_EGENERIC );
657 for( i_chunk = p_stsc->data.p_stsc->i_first_chunk[i_index] - 1;
658 i_chunk < i_last; i_chunk++ )
660 p_demux_track->chunk[i_chunk].i_sample_description_index =
661 p_stsc->data.p_stsc->i_sample_description_index[i_index];
662 p_demux_track->chunk[i_chunk].i_sample_count =
663 p_stsc->data.p_stsc->i_samples_per_chunk[i_index];
665 i_last = p_stsc->data.p_stsc->i_first_chunk[i_index] - 1;
668 p_demux_track->chunk[0].i_sample_first = 0;
669 for( i_chunk = 1; i_chunk < p_demux_track->i_chunk_count; i_chunk++ )
671 p_demux_track->chunk[i_chunk].i_sample_first =
672 p_demux_track->chunk[i_chunk-1].i_sample_first +
673 p_demux_track->chunk[i_chunk-1].i_sample_count;
677 "track[Id 0x%x] read %d chunk",
678 p_demux_track->i_track_ID,
679 p_demux_track->i_chunk_count );
681 return( VLC_SUCCESS );
683 static int TrackCreateSamplesIndex( input_thread_t *p_input,
684 track_data_mp4_t *p_demux_track )
686 MP4_Box_t *p_stts; /* makes mapping between sample and decoding time,
687 ctts make same mapping but for composition time,
688 not yet used and probably not usefull */
689 MP4_Box_t *p_stsz; /* gives sample size of each samples, there is also stz2
690 that uses a compressed form FIXME make them in libmp4
692 /* TODO use also stss and stsh table for seeking */
693 /* FIXME use edit table */
698 int64_t i_index_sample_used;
702 p_stts = MP4_BoxGet( p_demux_track->p_stbl, "stts" );
703 p_stsz = MP4_BoxGet( p_demux_track->p_stbl, "stsz" ); /* FIXME and stz2 */
705 if( ( !p_stts )||( !p_stsz ) )
707 msg_Warn( p_input, "cannot read sample table" );
708 return( VLC_EGENERIC );
711 p_demux_track->i_sample_count = p_stsz->data.p_stsz->i_sample_count;
714 /* for sample size, there are 2 case */
715 if( p_stsz->data.p_stsz->i_sample_size )
717 /* 1: all sample have the same size, so no need to construct a table */
718 p_demux_track->i_sample_size = p_stsz->data.p_stsz->i_sample_size;
719 p_demux_track->p_sample_size = NULL;
723 /* 2: each sample can have a different size */
724 p_demux_track->i_sample_size = 0;
725 p_demux_track->p_sample_size =
726 calloc( p_demux_track->i_sample_count, sizeof( uint32_t ) );
728 for( i_sample = 0; i_sample < p_demux_track->i_sample_count; i_sample++ )
730 p_demux_track->p_sample_size[i_sample] =
731 p_stsz->data.p_stsz->i_entry_size[i_sample];
734 /* we have extract all information from stsz,
737 /* if we don't want to waste too much memory, we can't expand
738 the box !, so each chunk will contain an "extract" of this table
742 i_index = 0; i_index_sample_used =0;
744 /* create and init last data for each chunk */
745 for(i_chunk = 0 ; i_chunk < p_demux_track->i_chunk_count; i_chunk++ )
748 int64_t i_entry, i_sample_count, i;
750 p_demux_track->chunk[i_chunk].i_first_dts = i_last_dts;
751 /* count how many entries needed for this chunk
752 for p_sample_delta_dts and p_sample_count_dts */
754 i_sample_count = p_demux_track->chunk[i_chunk].i_sample_count;
757 while( i_sample_count > 0 )
759 i_sample_count -= p_stts->data.p_stts->i_sample_count[i_index+i_entry];
762 i_sample_count += i_index_sample_used; /* don't count already used sample
769 p_demux_track->chunk[i_chunk].p_sample_count_dts =
770 calloc( i_entry, sizeof( uint32_t ) );
771 p_demux_track->chunk[i_chunk].p_sample_delta_dts =
772 calloc( i_entry, sizeof( uint32_t ) );
775 i_sample_count = p_demux_track->chunk[i_chunk].i_sample_count;
776 for( i = 0; i < i_entry; i++ )
781 i_rest = p_stts->data.p_stts->i_sample_count[i_index] - i_index_sample_used;
783 i_used = __MIN( i_rest, i_sample_count );
785 i_index_sample_used += i_used;
786 i_sample_count -= i_used;
788 p_demux_track->chunk[i_chunk].p_sample_count_dts[i] = i_used;
790 p_demux_track->chunk[i_chunk].p_sample_delta_dts[i] =
791 p_stts->data.p_stts->i_sample_delta[i_index];
793 i_last_dts += i_used *
794 p_demux_track->chunk[i_chunk].p_sample_delta_dts[i];
796 if( i_index_sample_used >=
797 p_stts->data.p_stts->i_sample_count[i_index] )
801 i_index_sample_used = 0;
808 "track[Id 0x%x] read %d samples length:"I64Fd"s",
809 p_demux_track->i_track_ID,
810 p_demux_track->i_sample_count,
811 i_last_dts / p_demux_track->i_timescale );
813 return( VLC_SUCCESS );
818 * Create ES and PES to init decoder if needed, for a track starting at i_chunk
820 static int TrackCreateES ( input_thread_t *p_input,
821 track_data_mp4_t *p_track,
822 unsigned int i_chunk,
823 es_out_id_t **pp_es )
830 if( !p_track->chunk[i_chunk].i_sample_description_index )
833 "invalid SampleEntry index (track[Id 0x%x])",
834 p_track->i_track_ID );
838 p_sample = MP4_BoxGet( p_track->p_stsd, "[%d]",
839 p_track->chunk[i_chunk].i_sample_description_index - 1 );
841 if( !p_sample || !p_sample->data.p_data )
844 "cannot find SampleEntry (track[Id 0x%x])",
845 p_track->i_track_ID );
846 return( VLC_EGENERIC );
849 p_track->p_sample = p_sample;
851 if( p_track->i_sample_size == 1 )
853 MP4_Box_data_sample_soun_t *p_soun;
855 p_soun = p_sample->data.p_sample_soun;
857 if( p_soun->i_qt_version == 0 )
859 switch( p_sample->i_type )
861 case VLC_FOURCC( 'i', 'm', 'a', '4' ):
862 p_soun->i_qt_version = 1;
863 p_soun->i_sample_per_packet = 64;
864 p_soun->i_bytes_per_packet = 34;
865 p_soun->i_bytes_per_frame = 34 * p_soun->i_channelcount;
866 p_soun->i_bytes_per_sample = 2;
868 case VLC_FOURCC( 'M', 'A', 'C', '3' ):
869 p_soun->i_qt_version = 1;
870 p_soun->i_sample_per_packet = 6;
871 p_soun->i_bytes_per_packet = 2;
872 p_soun->i_bytes_per_frame = 2 * p_soun->i_channelcount;
873 p_soun->i_bytes_per_sample = 2;
875 case VLC_FOURCC( 'M', 'A', 'C', '6' ):
876 p_soun->i_qt_version = 1;
877 p_soun->i_sample_per_packet = 12;
878 p_soun->i_bytes_per_packet = 2;
879 p_soun->i_bytes_per_frame = 2 * p_soun->i_channelcount;
880 p_soun->i_bytes_per_sample = 2;
887 else if( p_soun->i_qt_version == 1 && p_soun->i_sample_per_packet <= 0 )
889 p_soun->i_qt_version = 0;
894 /* It's a little ugly but .. there are special cases */
895 switch( p_sample->i_type )
897 case( VLC_FOURCC( '.', 'm', 'p', '3' ) ):
898 case( VLC_FOURCC( 'm', 's', 0x00, 0x55 ) ):
899 p_track->fmt.i_codec = VLC_FOURCC( 'm', 'p', 'g', 'a' );
901 case( VLC_FOURCC( 'r', 'a', 'w', ' ' ) ):
902 p_track->fmt.i_codec = VLC_FOURCC( 'a', 'r', 'a', 'w' );
904 case( VLC_FOURCC( 's', '2', '6', '3' ) ):
905 p_track->fmt.i_codec = VLC_FOURCC( 'h', '2', '6', '3' );
908 p_track->fmt.i_codec = p_sample->i_type;
912 /* now see if esds is present and if so create a data packet
913 with decoder_specific_info */
914 #define p_decconfig p_esds->data.p_esds->es_descriptor.p_decConfigDescr
915 if( ( ( p_esds = MP4_BoxGet( p_sample, "esds" ) ) ||
916 ( p_esds = MP4_BoxGet( p_sample, "wave/esds" ) ) )&&
917 ( p_esds->data.p_esds )&&
920 /* First update information based on i_objectTypeIndication */
921 switch( p_decconfig->i_objectTypeIndication )
923 case( 0x20 ): /* MPEG4 VIDEO */
924 p_track->fmt.i_codec = VLC_FOURCC( 'm','p','4','v' );
927 p_track->fmt.i_codec = VLC_FOURCC( 'm','p','4','a' );
934 case( 0x65): /* MPEG2 video */
935 p_track->fmt.i_codec = VLC_FOURCC( 'm','p','g','v' );
937 /* Theses are MPEG2-AAC */
938 case( 0x66): /* main profile */
939 case( 0x67): /* Low complexity profile */
940 case( 0x68): /* Scaleable Sampling rate profile */
941 p_track->fmt.i_codec = VLC_FOURCC( 'm','p','4','a' );
943 /* true MPEG 2 audio */
945 p_track->fmt.i_codec = VLC_FOURCC( 'm','p','g','a' );
947 case( 0x6a): /* MPEG1 video */
948 p_track->fmt.i_codec = VLC_FOURCC( 'm','p','g','v' );
950 case( 0x6b): /* MPEG1 audio */
951 p_track->fmt.i_codec = VLC_FOURCC( 'm','p','g','a' );
953 case( 0x6c ): /* jpeg */
954 p_track->fmt.i_codec = VLC_FOURCC( 'j','p','e','g' );
957 /* Unknown entry, but don't touch i_fourcc */
959 "unknown objectTypeIndication(0x%x) (Track[ID 0x%x])",
960 p_decconfig->i_objectTypeIndication,
961 p_track->i_track_ID );
964 p_track->fmt.i_extra = p_decconfig->i_decoder_specific_info_len;
965 if( p_track->fmt.i_extra > 0 )
967 p_track->fmt.p_extra = malloc( p_track->fmt.i_extra );
968 memcpy( p_track->fmt.p_extra, p_decconfig->p_decoder_specific_info,
969 p_track->fmt.i_extra );
974 switch( p_sample->i_type )
976 /* qt decoder, send the complete chunk */
977 case VLC_FOURCC( 'S', 'V', 'Q', '3' ):
978 case VLC_FOURCC( 'S', 'V', 'Q', '1' ):
979 case VLC_FOURCC( 'V', 'P', '3', '1' ):
980 case VLC_FOURCC( '3', 'I', 'V', '1' ):
981 case VLC_FOURCC( 'Z', 'y', 'G', 'o' ):
982 p_track->fmt.i_extra =
983 p_sample->data.p_sample_vide->i_qt_image_description;
984 if( p_track->fmt.i_extra > 0 )
986 p_track->fmt.p_extra = malloc( p_track->fmt.i_extra );
987 memcpy( p_track->fmt.p_extra,
988 p_sample->data.p_sample_vide->p_qt_image_description,
989 p_track->fmt.i_extra);
992 case VLC_FOURCC( 'Q', 'D', 'M', 'C' ):
993 case VLC_FOURCC( 'Q', 'D', 'M', '2' ):
994 case VLC_FOURCC( 'Q', 'c', 'l', 'p' ):
995 case VLC_FOURCC( 's', 'a', 'm', 'r' ):
996 p_track->fmt.i_extra =
997 p_sample->data.p_sample_soun->i_qt_description;
998 if( p_track->fmt.i_extra > 0 )
1000 p_track->fmt.p_extra = malloc( p_track->fmt.i_extra );
1001 memcpy( p_track->fmt.p_extra,
1002 p_sample->data.p_sample_soun->p_qt_description,
1003 p_track->fmt.i_extra);
1013 /* some last initialisation */
1014 switch( p_track->fmt.i_cat )
1017 p_track->fmt.video.i_width = p_sample->data.p_sample_vide->i_width;
1018 p_track->fmt.video.i_height = p_sample->data.p_sample_vide->i_height;
1020 /* fall on display size */
1021 if( p_track->fmt.video.i_width <= 0 )
1022 p_track->fmt.video.i_width = p_track->i_width;
1023 if( p_track->fmt.video.i_height <= 0 )
1024 p_track->fmt.video.i_height = p_track->i_height;
1026 /* Find out apect ratio from display size */
1027 if( p_track->i_width > 0 && p_track->i_height > 0 )
1028 p_track->fmt.video.i_aspect =
1029 VOUT_ASPECT_FACTOR * p_track->i_width / p_track->i_height;
1034 p_track->fmt.audio.i_channels =
1035 p_sample->data.p_sample_soun->i_channelcount;
1036 p_track->fmt.audio.i_rate =
1037 p_sample->data.p_sample_soun->i_sampleratehi;
1038 p_track->fmt.i_bitrate = p_sample->data.p_sample_soun->i_channelcount *
1039 p_sample->data.p_sample_soun->i_sampleratehi *
1040 p_sample->data.p_sample_soun->i_samplesize;
1041 p_track->fmt.audio.i_bitspersample =
1042 p_sample->data.p_sample_soun->i_samplesize;
1049 *pp_es = es_out_Add( p_input->p_es_out, &p_track->fmt );
1054 /* given a time it return sample/chunk */
1055 static int TrackTimeToSampleChunk( input_thread_t *p_input,
1056 track_data_mp4_t *p_track,
1059 uint32_t *pi_sample )
1063 unsigned int i_sample;
1064 unsigned int i_chunk;
1067 /* convert absolute time to in timescale unit */
1068 i_start = i_start * (mtime_t)p_track->i_timescale / (mtime_t)1000000;
1070 /* FIXME see if it's needed to check p_track->i_chunk_count */
1071 if( !p_track->b_ok || p_track->i_chunk_count == 0 )
1073 return( VLC_EGENERIC );
1076 /* we start from sample 0/chunk 0, hope it won't take too much time */
1077 /* *** find good chunk *** */
1078 for( i_chunk = 0; ; i_chunk++ )
1080 if( i_chunk + 1 >= p_track->i_chunk_count )
1082 /* at the end and can't check if i_start in this chunk,
1083 it will be check while searching i_sample */
1084 i_chunk = p_track->i_chunk_count - 1;
1088 if( i_start >= p_track->chunk[i_chunk].i_first_dts &&
1089 i_start < p_track->chunk[i_chunk + 1].i_first_dts )
1095 /* *** find sample in the chunk *** */
1096 i_sample = p_track->chunk[i_chunk].i_sample_first;
1097 i_dts = p_track->chunk[i_chunk].i_first_dts;
1098 for( i_index = 0; i_sample < p_track->chunk[i_chunk].i_sample_count; )
1101 p_track->chunk[i_chunk].p_sample_count_dts[i_index] *
1102 p_track->chunk[i_chunk].p_sample_delta_dts[i_index] < i_start )
1105 p_track->chunk[i_chunk].p_sample_count_dts[i_index] *
1106 p_track->chunk[i_chunk].p_sample_delta_dts[i_index];
1108 i_sample += p_track->chunk[i_chunk].p_sample_count_dts[i_index];
1113 if( p_track->chunk[i_chunk].p_sample_delta_dts[i_index] <= 0 )
1117 i_sample += ( i_start - i_dts ) / p_track->chunk[i_chunk].p_sample_delta_dts[i_index];
1122 if( i_sample >= p_track->i_sample_count )
1125 "track[Id 0x%x] will be disabled (seeking too far) chunk=%d sample=%d",
1126 p_track->i_track_ID, i_chunk, i_sample );
1127 return( VLC_EGENERIC );
1131 /* *** Try to find nearest sync points *** */
1132 if( ( p_stss = MP4_BoxGet( p_track->p_stbl, "stss" ) ) )
1134 unsigned int i_index;
1136 "track[Id 0x%x] using Sync Sample Box (stss)",
1137 p_track->i_track_ID );
1138 for( i_index = 0; i_index < p_stss->data.p_stss->i_entry_count; i_index++ )
1140 if( p_stss->data.p_stss->i_sample_number[i_index] >= i_sample )
1144 msg_Dbg( p_input, "stts gives %d --> %d (sample number)",
1146 p_stss->data.p_stss->i_sample_number[i_index-1] );
1147 i_sample = p_stss->data.p_stss->i_sample_number[i_index-1];
1148 /* new i_sample is less than old so i_chunk can only decreased */
1149 while( i_chunk > 0 &&
1150 i_sample < p_track->chunk[i_chunk].i_sample_first )
1157 msg_Dbg( p_input, "stts gives %d --> %d (sample number)",
1159 p_stss->data.p_stss->i_sample_number[i_index] );
1160 i_sample = p_stss->data.p_stss->i_sample_number[i_index];
1161 /* new i_sample is more than old so i_chunk can only increased */
1162 while( i_chunk < p_track->i_chunk_count - 1 &&
1163 i_sample >= p_track->chunk[i_chunk].i_sample_first +
1164 p_track->chunk[i_chunk].i_sample_count )
1176 "track[Id 0x%x] does not provide Sync Sample Box (stss)",
1177 p_track->i_track_ID );
1180 if( pi_chunk ) *pi_chunk = i_chunk;
1181 if( pi_sample ) *pi_sample = i_sample;
1182 return( VLC_SUCCESS );
1185 static int TrackGotoChunkSample( input_thread_t *p_input,
1186 track_data_mp4_t *p_track,
1187 unsigned int i_chunk,
1188 unsigned int i_sample )
1190 vlc_bool_t b_reselect = VLC_FALSE;
1192 /* now see if actual es is ok */
1193 if( p_track->i_chunk < 0 ||
1194 p_track->i_chunk >= p_track->i_chunk_count ||
1195 p_track->chunk[p_track->i_chunk].i_sample_description_index !=
1196 p_track->chunk[i_chunk].i_sample_description_index )
1198 msg_Warn( p_input, "Recreate ES" );
1200 es_out_Control( p_input->p_es_out, ES_OUT_GET_ES_STATE, p_track->p_es, &b_reselect );
1202 es_out_Del( p_input->p_es_out, p_track->p_es );
1204 p_track->p_es = NULL;
1206 if( TrackCreateES( p_input,
1210 msg_Err( p_input, "cannot create es for track[Id 0x%x]",
1211 p_track->i_track_ID );
1213 p_track->b_ok = VLC_FALSE;
1214 p_track->b_selected = VLC_FALSE;
1215 return VLC_EGENERIC;
1219 /* select again the new decoder */
1222 es_out_Control( p_input->p_es_out, ES_OUT_SET_ES, p_track->p_es );
1225 p_track->i_chunk = i_chunk;
1226 p_track->i_sample = i_sample;
1228 return p_track->b_selected ? VLC_SUCCESS : VLC_EGENERIC;
1231 /****************************************************************************
1233 ****************************************************************************
1234 * Parse track information and create all needed data to run a track
1235 * If it succeed b_ok is set to 1 else to 0
1236 ****************************************************************************/
1237 static void MP4_TrackCreate( input_thread_t *p_input,
1238 track_data_mp4_t *p_track,
1239 MP4_Box_t * p_box_trak )
1241 MP4_Box_t *p_tkhd = MP4_BoxGet( p_box_trak, "tkhd" );
1242 MP4_Box_t *p_tref = MP4_BoxGet( p_box_trak, "tref" );
1256 /* hint track unsuported */
1258 /* set default value (-> track unusable) */
1259 p_track->b_ok = VLC_FALSE;
1260 p_track->b_enable = VLC_FALSE;
1261 p_track->b_selected = VLC_FALSE;
1263 es_format_Init( &p_track->fmt, UNKNOWN_ES, 0 );
1270 /* do we launch this track by default ? */
1272 ( ( p_tkhd->data.p_tkhd->i_flags&MP4_TRACK_ENABLED ) != 0 );
1274 p_track->i_track_ID = p_tkhd->data.p_tkhd->i_track_ID;
1275 p_track->i_width = p_tkhd->data.p_tkhd->i_width / 65536;
1276 p_track->i_height = p_tkhd->data.p_tkhd->i_height / 65536;
1278 if( ( p_elst = MP4_BoxGet( p_box_trak, "edts/elst" ) ) )
1280 /* msg_Warn( p_input, "unhandled box: edts --> FIXME" ); */
1285 /* msg_Warn( p_input, "unhandled box: tref --> FIXME" ); */
1288 p_mdhd = MP4_BoxGet( p_box_trak, "mdia/mdhd" );
1289 p_hdlr = MP4_BoxGet( p_box_trak, "mdia/hdlr" );
1291 if( ( !p_mdhd )||( !p_hdlr ) )
1296 p_track->i_timescale = p_mdhd->data.p_mdhd->i_timescale;
1298 for( i = 0; i < 3; i++ )
1300 language[i] = p_mdhd->data.p_mdhd->i_language[i];
1304 switch( p_hdlr->data.p_hdlr->i_handler_type )
1306 case( FOURCC_soun ):
1307 if( !( p_smhd = MP4_BoxGet( p_box_trak, "mdia/minf/smhd" ) ) )
1311 p_track->fmt.i_cat = AUDIO_ES;
1314 case( FOURCC_vide ):
1315 if( !( p_vmhd = MP4_BoxGet( p_box_trak, "mdia/minf/vmhd" ) ) )
1319 p_track->fmt.i_cat = VIDEO_ES;
1327 p_dinf = MP4_BoxGet( p_minf, "dinf" );
1329 if( !( p_track->p_stbl = MP4_BoxGet( p_box_trak,"mdia/minf/stbl" ) ) ||
1330 !( p_track->p_stsd = MP4_BoxGet( p_box_trak,"mdia/minf/stbl/stsd") ) )
1335 p_drms = MP4_BoxGet( p_track->p_stsd, "drms" );
1336 p_track->p_drms = p_drms != NULL ?
1337 p_drms->data.p_sample_soun->p_drms : NULL;
1339 msg_Dbg( p_input, "drms%sinitialized",
1340 p_track->p_drms == NULL ? " not " : " " );
1343 if( strcmp( language, "```" ) && strcmp( language, "und" ) )
1345 p_track->fmt.psz_language = strdup( language );
1348 /* fxi i_timescale for AUDIO_ES with i_qt_version == 0 */
1349 if( p_track->fmt.i_cat == AUDIO_ES ) //&& p_track->i_sample_size == 1 )
1351 MP4_Box_t *p_sample;
1353 p_sample = MP4_BoxGet( p_track->p_stsd, "[0]" );
1354 if( p_sample && p_sample->data.p_sample_soun)
1356 MP4_Box_data_sample_soun_t *p_soun = p_sample->data.p_sample_soun;
1357 if( p_soun->i_qt_version == 0 &&
1358 p_track->i_timescale != p_soun->i_sampleratehi )
1361 "i_timescale ("I64Fu") != i_sampleratehi (%u) with "
1363 "Making both equal. (report any problem)",
1364 p_track->i_timescale, p_soun->i_sampleratehi );
1366 if( p_soun->i_sampleratehi )
1367 p_track->i_timescale = p_soun->i_sampleratehi;
1369 p_soun->i_sampleratehi = p_track->i_timescale;
1374 /* Create chunk index table and sample index table */
1375 if( TrackCreateChunksIndex( p_input,p_track ) ||
1376 TrackCreateSamplesIndex( p_input, p_track ) )
1378 return; /* cannot create chunks index */
1381 p_track->i_chunk = 0;
1382 p_track->i_sample = 0;
1385 if( TrackCreateES( p_input,
1386 p_track, p_track->i_chunk,
1389 msg_Err( p_input, "cannot create es for track[Id 0x%x]",
1390 p_track->i_track_ID );
1397 for( i = 0; i < p_track->i_chunk_count; i++ )
1399 fprintf( stderr, "%-5d sample_count=%d pts=%lld\n", i, p_track->chunk[i].i_sample_count, p_track->chunk[i].i_first_dts );
1404 p_track->b_ok = VLC_TRUE;
1407 /****************************************************************************
1409 ****************************************************************************
1410 * Destroy a track created by MP4_TrackCreate.
1411 ****************************************************************************/
1412 static void MP4_TrackDestroy( input_thread_t *p_input,
1413 track_data_mp4_t *p_track )
1415 unsigned int i_chunk;
1417 p_track->b_ok = VLC_FALSE;
1418 p_track->b_enable = VLC_FALSE;
1419 p_track->b_selected = VLC_FALSE;
1421 es_format_Init( &p_track->fmt, UNKNOWN_ES, 0 );
1423 for( i_chunk = 0; i_chunk < p_track->i_chunk_count; i_chunk++ )
1425 if( p_track->chunk )
1427 FREE(p_track->chunk[i_chunk].p_sample_count_dts);
1428 FREE(p_track->chunk[i_chunk].p_sample_delta_dts );
1431 FREE( p_track->chunk );
1433 if( !p_track->i_sample_size )
1435 FREE( p_track->p_sample_size );
1439 static int MP4_TrackSelect ( input_thread_t *p_input,
1440 track_data_mp4_t *p_track,
1446 if( !p_track->b_ok )
1448 return( VLC_EGENERIC );
1451 if( p_track->b_selected )
1454 "track[Id 0x%x] already selected",
1455 p_track->i_track_ID );
1456 return( VLC_SUCCESS );
1459 if( TrackTimeToSampleChunk( p_input,
1461 &i_chunk, &i_sample ) )
1464 "cannot select track[Id 0x%x]",
1465 p_track->i_track_ID );
1466 return( VLC_EGENERIC );
1469 p_track->b_selected = VLC_TRUE;
1471 if( TrackGotoChunkSample( p_input, p_track, i_chunk, i_sample ) )
1473 p_track->b_selected = VLC_FALSE;
1475 return p_track->b_selected ? VLC_SUCCESS : VLC_EGENERIC;
1478 static void MP4_TrackUnselect(input_thread_t *p_input,
1479 track_data_mp4_t *p_track )
1481 if( !p_track->b_ok )
1486 if( !p_track->b_selected )
1489 "track[Id 0x%x] already unselected",
1490 p_track->i_track_ID );
1495 es_out_Control( p_input->p_es_out, ES_OUT_SET_ES_STATE, p_track->p_es, VLC_FALSE );
1498 p_track->b_selected = VLC_FALSE;
1501 static int MP4_TrackSeek ( input_thread_t *p_input,
1502 track_data_mp4_t *p_track,
1508 if( !p_track->b_ok )
1510 return( VLC_EGENERIC );
1513 if( TrackTimeToSampleChunk( p_input,
1515 &i_chunk, &i_sample ) )
1518 "cannot select track[Id 0x%x]",
1519 p_track->i_track_ID );
1520 return( VLC_EGENERIC );
1523 p_track->b_selected = VLC_TRUE;
1525 TrackGotoChunkSample( p_input, p_track, i_chunk, i_sample );
1527 return( p_track->b_selected ? VLC_SUCCESS : VLC_EGENERIC );
1535 * 3 types: for audio
1538 #define QT_V0_MAX_SAMPLES 1500
1539 static int MP4_TrackSampleSize( track_data_mp4_t *p_track )
1542 MP4_Box_data_sample_soun_t *p_soun;
1544 if( p_track->i_sample_size == 0 )
1546 /* most simple case */
1547 return( p_track->p_sample_size[p_track->i_sample] );
1549 if( p_track->fmt.i_cat != AUDIO_ES )
1551 return( p_track->i_sample_size );
1554 if( p_track->i_sample_size != 1 )
1556 //msg_Warn( p_input, "SampleSize != 1" );
1557 return( p_track->i_sample_size );
1560 p_soun = p_track->p_sample->data.p_sample_soun;
1562 if( p_soun->i_qt_version == 1 )
1564 i_size = p_track->chunk[p_track->i_chunk].i_sample_count / p_soun->i_sample_per_packet * p_soun->i_bytes_per_frame;
1569 int i_samples = p_track->chunk[p_track->i_chunk].i_sample_count -
1570 ( p_track->i_sample - p_track->chunk[p_track->i_chunk].i_sample_first );
1571 if( i_samples > QT_V0_MAX_SAMPLES )
1573 i_samples = QT_V0_MAX_SAMPLES;
1575 i_size = i_samples * p_soun->i_channelcount * p_soun->i_samplesize / 8;
1578 //fprintf( stderr, "size=%d\n", i_size );
1583 static uint64_t MP4_GetTrackPos( track_data_mp4_t *p_track )
1585 unsigned int i_sample;
1589 i_pos = p_track->chunk[p_track->i_chunk].i_offset;
1591 if( p_track->i_sample_size )
1593 MP4_Box_data_sample_soun_t *p_soun = p_track->p_sample->data.p_sample_soun;
1595 if( p_soun->i_qt_version == 0 )
1597 i_pos += ( p_track->i_sample - p_track->chunk[p_track->i_chunk].i_sample_first ) *
1598 p_soun->i_channelcount * p_soun->i_samplesize / 8;
1602 /* we read chunk by chunk */
1608 for( i_sample = p_track->chunk[p_track->i_chunk].i_sample_first;
1609 i_sample < p_track->i_sample; i_sample++ )
1611 i_pos += p_track->p_sample_size[i_sample];
1618 static int MP4_TrackNextSample( input_thread_t *p_input,
1619 track_data_mp4_t *p_track )
1622 if( p_track->fmt.i_cat == AUDIO_ES &&
1623 p_track->i_sample_size != 0 )
1625 MP4_Box_data_sample_soun_t *p_soun;
1627 p_soun = p_track->p_sample->data.p_sample_soun;
1629 if( p_soun->i_qt_version == 1 )
1631 /* chunk by chunk */
1633 p_track->chunk[p_track->i_chunk].i_sample_first +
1634 p_track->chunk[p_track->i_chunk].i_sample_count;
1639 p_track->i_sample += QT_V0_MAX_SAMPLES;
1640 if( p_track->i_sample > p_track->chunk[p_track->i_chunk].i_sample_first + p_track->chunk[p_track->i_chunk].i_sample_count )
1643 p_track->chunk[p_track->i_chunk].i_sample_first +
1644 p_track->chunk[p_track->i_chunk].i_sample_count;
1650 p_track->i_sample++;
1653 if( p_track->i_sample >= p_track->i_sample_count )
1655 /* we have reach end of the track so free decoder stuff */
1656 msg_Warn( p_input, "track[0x%x] will be disabled", p_track->i_track_ID );
1657 MP4_TrackUnselect( p_input, p_track );
1658 return( VLC_EGENERIC );
1661 /* Have we changed chunk ? */
1662 if( p_track->i_sample >=
1663 p_track->chunk[p_track->i_chunk].i_sample_first +
1664 p_track->chunk[p_track->i_chunk].i_sample_count )
1666 if( TrackGotoChunkSample( p_input,
1668 p_track->i_chunk + 1,
1669 p_track->i_sample ) )
1671 msg_Warn( p_input, "track[0x%x] will be disabled (cannot restart decoder)", p_track->i_track_ID );
1672 MP4_TrackUnselect( p_input, p_track );
1673 return( VLC_EGENERIC );
1677 return( VLC_SUCCESS );