1 /*****************************************************************************
3 *****************************************************************************
4 * Copyright (C) 2001, 2002, 2003 VideoLAN
7 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
8 * Gildas Bazin <gbazin at videolan dot org>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
23 *****************************************************************************/
25 /*****************************************************************************
27 *****************************************************************************/
33 #include <vlc/input.h>
42 /*****************************************************************************
44 *****************************************************************************/
45 static int Open ( vlc_object_t * );
46 static void Close ( vlc_object_t * );
48 static int Capability(sout_mux_t *, int, void *, void * );
49 static int AddStream( sout_mux_t *, sout_input_t * );
50 static int DelStream( sout_mux_t *, sout_input_t * );
51 static int Mux ( sout_mux_t * );
53 /*****************************************************************************
55 *****************************************************************************/
56 #define FASTSTART_TEXT N_("Create \"Fast start\" files")
57 #define FASTSTART_LONGTEXT N_( \
58 "When this option is turned on, \"Fast start\" files will be created. " \
59 "(\"Fast start\" files are optimized for download, allowing the user " \
60 "to start previewing the file while it is downloading).")
63 set_description( _("MP4/MOV muxer") );
65 add_bool( "mp4-faststart", 1, NULL, FASTSTART_TEXT, FASTSTART_LONGTEXT,
68 set_capability( "sout mux", 5 );
69 add_shortcut( "mp4" );
70 add_shortcut( "mov" );
71 set_callbacks( Open, Close );
74 /*****************************************************************************
76 *****************************************************************************/
96 unsigned int i_entry_count;
97 unsigned int i_entry_max;
103 /* for later stco fix-up (fast start files) */
109 struct sout_mux_sys_t
113 vlc_bool_t b_fast_start;
121 mp4_stream_t **pp_streams;
134 static void bo_init ( bo_t *, int , uint8_t *, vlc_bool_t );
135 static void bo_add_8 ( bo_t *, uint8_t );
136 static void bo_add_16be ( bo_t *, uint16_t );
137 static void bo_add_24be ( bo_t *, uint32_t );
138 static void bo_add_32be ( bo_t *, uint32_t );
139 static void bo_add_64be ( bo_t *, uint64_t );
140 static void bo_add_fourcc(bo_t *, char * );
141 static void bo_add_bo ( bo_t *, bo_t * );
142 static void bo_add_mem ( bo_t *, int , uint8_t * );
143 static void bo_add_descr( bo_t *, uint8_t , uint32_t );
145 static void bo_fix_32be ( bo_t *, int , uint32_t );
147 static bo_t *box_new ( char *fcc );
148 static bo_t *box_full_new( char *fcc, uint8_t v, uint32_t f );
149 static void box_fix ( bo_t *box );
150 static void box_free ( bo_t *box );
151 static void box_gather ( bo_t *box, bo_t *box2 );
153 static void box_send( sout_mux_t *p_mux, bo_t *box );
155 static int64_t get_timestamp();
157 static sout_buffer_t *bo_to_sout( sout_instance_t *p_sout, bo_t *box );
159 /*****************************************************************************
161 *****************************************************************************/
162 static int Open( vlc_object_t *p_this )
164 sout_mux_t *p_mux = (sout_mux_t*)p_this;
165 sout_mux_sys_t *p_sys;
168 p_sys = malloc( sizeof( sout_mux_sys_t ) );
170 p_sys->i_nb_streams = 0;
171 p_sys->pp_streams = NULL;
172 p_sys->i_mdat_pos = 0;
173 p_sys->b_mov = p_mux->psz_mux && !strcmp( p_mux->psz_mux, "mov" );
174 p_sys->i_start_dts = 0;
176 msg_Dbg( p_mux, "Open" );
178 p_mux->pf_capacity = Capability;
179 p_mux->pf_addstream = AddStream;
180 p_mux->pf_delstream = DelStream;
182 p_mux->p_sys = p_sys;
186 /* Now add ftyp header */
187 box = box_new( "ftyp" );
188 bo_add_fourcc( box, "isom" );
189 bo_add_32be ( box, 0 );
190 bo_add_fourcc( box, "mp41" );
193 p_sys->i_pos += box->i_buffer;
194 p_sys->i_mdat_pos = p_sys->i_pos;
196 box_send( p_mux, box );
200 * Quicktime actually doesn't like the 64 bits extensions !!! */
201 p_sys->b_64_ext = VLC_FALSE;
203 /* Now add mdat header */
204 box = box_new( "mdat" );
205 bo_add_64be ( box, 0 ); // enough to store an extended size
207 p_sys->i_pos += box->i_buffer;
209 box_send( p_mux, box );
214 static int GetDescrLength( int i_size )
216 if( i_size < 0x00000080 )
218 else if( i_size < 0x00004000 )
220 else if( i_size < 0x00200000 )
226 static bo_t *GetESDS( mp4_stream_t *p_stream )
230 int i_object_type_indication;
231 int i_decoder_specific_info_size;
233 if( p_stream->p_fmt->i_extra > 0 )
235 i_decoder_specific_info_size =
236 GetDescrLength( p_stream->p_fmt->i_extra );
240 i_decoder_specific_info_size = 0;
243 esds = box_full_new( "esds", 0, 0 );
246 bo_add_descr( esds, 0x03, 3 +
247 GetDescrLength( 13 + i_decoder_specific_info_size ) +
248 GetDescrLength( 1 ) );
249 bo_add_16be( esds, p_stream->i_track_id );
250 bo_add_8 ( esds, 0x1f ); // flags=0|streamPriority=0x1f
252 /* DecoderConfigDescr */
253 bo_add_descr( esds, 0x04, 13 + i_decoder_specific_info_size );
255 switch( p_stream->p_fmt->i_codec )
257 case VLC_FOURCC( 'm', 'p', '4', 'v' ):
258 i_object_type_indication = 0x20;
260 case VLC_FOURCC( 'm', 'p', 'g', 'v' ):
261 /* FIXME MPEG-I=0x6b, MPEG-II = 0x60 -> 0x65 */
262 i_object_type_indication = 0x60;
264 case VLC_FOURCC( 'm', 'p', '4', 'a' ):
265 /* FIXME for mpeg2-aac == 0x66->0x68 */
266 i_object_type_indication = 0x40;
268 case VLC_FOURCC( 'm', 'p', 'g', 'a' ):
269 i_object_type_indication =
270 p_stream->p_fmt->audio.i_rate < 32000 ? 0x69 : 0x6b;
273 i_object_type_indication = 0x00;
276 i_stream_type = p_stream->p_fmt->i_cat == VIDEO_ES ? 0x04 : 0x05;
278 bo_add_8 ( esds, i_object_type_indication );
279 bo_add_8 ( esds, ( i_stream_type << 2 ) | 1 );
280 bo_add_24be( esds, 1024 * 1024 ); // bufferSizeDB
281 bo_add_32be( esds, 0x7fffffff ); // maxBitrate
282 bo_add_32be( esds, 0 ); // avgBitrate
284 if( p_stream->p_fmt->i_extra > 0 )
288 /* DecoderSpecificInfo */
289 bo_add_descr( esds, 0x05, p_stream->p_fmt->i_extra );
291 for( i = 0; i < p_stream->p_fmt->i_extra; i++ )
293 bo_add_8( esds, ((uint8_t*)p_stream->p_fmt->p_extra)[i] );
297 /* SL_Descr mandatory */
298 bo_add_descr( esds, 0x06, 1 );
299 bo_add_8 ( esds, 0x02 ); // sl_predefined
306 static bo_t *GetWaveTag( mp4_stream_t *p_stream )
311 wave = box_new( "wave" );
313 box = box_new( "frma" );
314 bo_add_fourcc( box, "mp4a" );
316 box_gather( wave, box );
318 box = box_new( "mp4a" );
319 bo_add_32be( box, 0 );
321 box_gather( wave, box );
323 box = GetESDS( p_stream );
325 box_gather( wave, box );
327 box = box_new( "srcq" );
328 bo_add_32be( box, 0x40 );
330 box_gather( wave, box );
333 bo_add_32be( wave, 8 ); /* new empty box */
334 bo_add_32be( wave, 0 ); /* box label */
341 /* TODO: No idea about these values */
342 static bo_t *GetSVQ3Tag( mp4_stream_t *p_stream )
344 bo_t *smi = box_new( "SMI " );
346 if( p_stream->p_fmt->i_extra > 0x4e )
348 uint8_t *p_end = &((uint8_t*)p_stream->p_fmt->p_extra)[p_stream->p_fmt->i_extra];
349 uint8_t *p = &((uint8_t*)p_stream->p_fmt->p_extra)[0x46];
351 while( p + 8 < p_end )
353 int i_size = GetDWBE( p );
356 /* FIXME handle 1 as long size */
359 if( !strncmp( &p[4], "SMI ", 4 ) )
361 bo_add_mem( smi, p_end - p - 8, &p[8] );
368 /* Create a dummy one in fallback */
369 bo_add_fourcc( smi, "SEQH" );
370 bo_add_32be( smi, 0x5 );
371 bo_add_32be( smi, 0xe2c0211d );
372 bo_add_8( smi, 0xc0 );
378 static bo_t *GetUdtaTag( sout_mux_t *p_mux )
380 sout_mux_sys_t *p_sys = p_mux->p_sys;
381 bo_t *udta = box_new( "udta" );
385 for( i_track = 0; i_track < p_sys->i_nb_streams; i_track++ )
387 mp4_stream_t *p_stream = p_sys->pp_streams[i_track];
389 if( p_stream->p_fmt->i_codec == VLC_FOURCC('m','p','4','v') ||
390 p_stream->p_fmt->i_codec == VLC_FOURCC('m','p','4','a') )
392 bo_t *box = box_new( "\251req" );
394 bo_add_16be( box, sizeof("QuickTime 6.0 or greater") - 1);
395 bo_add_16be( box, 0 );
396 bo_add_mem( box, sizeof("QuickTime 6.0 or greater") - 1,
397 "QuickTime 6.0 or greater" );
399 box_gather( udta, box );
406 bo_t *box = box_new( "\251enc" );
408 bo_add_16be( box, sizeof(PACKAGE_STRING " stream output") - 1);
409 bo_add_16be( box, 0 );
410 bo_add_mem( box, sizeof(PACKAGE_STRING " stream output") - 1,
411 PACKAGE_STRING " stream output" );
413 box_gather( udta, box );
420 static bo_t *GetSounBox( sout_mux_t *p_mux, mp4_stream_t *p_stream )
422 sout_mux_sys_t *p_sys = p_mux->p_sys;
423 vlc_bool_t b_descr = VLC_FALSE;
428 switch( p_stream->p_fmt->i_codec )
430 case VLC_FOURCC('m','p','4','a'):
431 memcpy( fcc, "mp4a", 4 );
435 case VLC_FOURCC('m','p','g','a'):
437 memcpy( fcc, ".mp3", 4 );
440 memcpy( fcc, "mp4a", 4 );
446 memcpy( fcc, (char*)&p_stream->p_fmt->i_codec, 4 );
450 soun = box_new( fcc );
451 for( i = 0; i < 6; i++ )
453 bo_add_8( soun, 0 ); // reserved;
455 bo_add_16be( soun, 1 ); // data-reference-index
457 /* SoundDescription */
459 p_stream->p_fmt->i_codec == VLC_FOURCC('m','p','4','a') )
461 bo_add_16be( soun, 1 ); // version 1;
465 bo_add_16be( soun, 0 ); // version 0;
467 bo_add_16be( soun, 0 ); // revision level (0)
468 bo_add_32be( soun, 0 ); // vendor
470 bo_add_16be( soun, p_stream->p_fmt->audio.i_channels );
472 bo_add_16be( soun, p_stream->p_fmt->audio.i_bitspersample ?
473 p_stream->p_fmt->audio.i_bitspersample : 16 );
474 bo_add_16be( soun, -2 ); // compression id
475 bo_add_16be( soun, 0 ); // packet size (0)
476 bo_add_16be( soun, p_stream->p_fmt->audio.i_rate ); // sampleratehi
477 bo_add_16be( soun, 0 ); // sampleratelo
479 /* Extended data for SoundDescription V1 */
481 p_stream->p_fmt->i_codec == VLC_FOURCC('m','p','4','a') )
483 /* samples per packet */
484 bo_add_32be( soun, p_stream->p_fmt->audio.i_frame_length );
485 bo_add_32be( soun, 1536 ); /* bytes per packet */
486 bo_add_32be( soun, 2 ); /* bytes per frame */
487 /* bytes per sample */
488 bo_add_32be( soun, 2 /*p_stream->p_fmt->audio.i_bitspersample/8 */);
491 /* Add an ES Descriptor */
497 p_stream->p_fmt->i_codec == VLC_FOURCC('m','p','4','a') )
499 box = GetWaveTag( p_stream );
503 box = GetESDS( p_stream );
506 box_gather( soun, box );
514 static bo_t *GetVideBox( sout_mux_t *p_mux, mp4_stream_t *p_stream )
521 switch( p_stream->p_fmt->i_codec )
523 case VLC_FOURCC('m','p','4','v'):
524 case VLC_FOURCC('m','p','g','v'):
525 memcpy( fcc, "mp4v", 4 );
528 case VLC_FOURCC('M','J','P','G'):
529 memcpy( fcc, "mjpa", 4 );
532 case VLC_FOURCC('S','V','Q','3'):
533 memcpy( fcc, "SVQ3", 4 );
537 memcpy( fcc, (char*)&p_stream->p_fmt->i_codec, 4 );
541 vide = box_new( fcc );
542 for( i = 0; i < 6; i++ )
544 bo_add_8( vide, 0 ); // reserved;
546 bo_add_16be( vide, 1 ); // data-reference-index
548 bo_add_16be( vide, 0 ); // predefined;
549 bo_add_16be( vide, 0 ); // reserved;
550 for( i = 0; i < 3; i++ )
552 bo_add_32be( vide, 0 ); // predefined;
555 bo_add_16be( vide, p_stream->p_fmt->video.i_width ); // i_width
556 bo_add_16be( vide, p_stream->p_fmt->video.i_height ); // i_height
558 bo_add_32be( vide, 0x00480000 ); // h 72dpi
559 bo_add_32be( vide, 0x00480000 ); // v 72dpi
561 bo_add_32be( vide, 0 ); // data size, always 0
562 bo_add_16be( vide, 1 ); // frames count per sample
565 for( i = 0; i < 32; i++ )
570 bo_add_16be( vide, 0x18 ); // depth
571 bo_add_16be( vide, 0xffff ); // predefined
573 /* add an ES Descriptor */
574 switch( p_stream->p_fmt->i_codec )
576 case VLC_FOURCC('m','p','4','v'):
577 case VLC_FOURCC('m','p','g','v'):
579 bo_t *esds = GetESDS( p_stream );
582 box_gather( vide, esds );
586 case VLC_FOURCC('S','V','Q','3'):
588 bo_t *esds = GetSVQ3Tag( p_stream );
591 box_gather( vide, esds );
604 static bo_t *GetStblBox( sout_mux_t *p_mux, mp4_stream_t *p_stream )
606 sout_mux_sys_t *p_sys = p_mux->p_sys;
607 unsigned int i_chunk, i_stsc_last_val, i_stsc_entries, i, i_index;
608 bo_t *stbl, *stsd, *stts, *stco, *stsc, *stsz, *stss;
609 uint32_t i_timescale;
610 int64_t i_dts, i_dts_q;
612 stbl = box_new( "stbl" );
613 stsd = box_full_new( "stsd", 0, 0 );
614 bo_add_32be( stsd, 1 );
616 if( p_stream->p_fmt->i_cat == AUDIO_ES )
618 bo_t *soun = GetSounBox( p_mux, p_stream );
619 box_gather( stsd, soun );
621 else if( p_stream->p_fmt->i_cat == VIDEO_ES )
623 bo_t *vide = GetVideBox( p_mux, p_stream );
624 box_gather( stsd, vide );
627 /* append stsd to stbl */
629 box_gather( stbl, stsd );
631 /* chunk offset table */
632 p_stream->i_stco_pos = stbl->i_buffer + 16;
633 if( p_sys->i_pos >= (((uint64_t)0x1) << 32) )
635 /* 64 bits version */
636 p_stream->b_stco64 = VLC_TRUE;
637 stco = box_full_new( "co64", 0, 0 );
641 /* 32 bits version */
642 p_stream->b_stco64 = VLC_FALSE;
643 stco = box_full_new( "stco", 0, 0 );
645 bo_add_32be( stco, 0 ); // entry-count (fixed latter)
647 /* sample to chunk table */
648 stsc = box_full_new( "stsc", 0, 0 );
649 bo_add_32be( stsc, 0 ); // entry-count (fixed latter)
651 for( i_chunk = 0, i_stsc_last_val = 0, i_stsc_entries = 0, i = 0;
652 i < p_stream->i_entry_count; i_chunk++ )
656 if( p_stream->b_stco64 )
657 bo_add_64be( stco, p_stream->entry[i].i_pos );
659 bo_add_32be( stco, p_stream->entry[i].i_pos );
661 while( i < p_stream->i_entry_count )
663 if( i + 1 < p_stream->i_entry_count &&
664 p_stream->entry[i].i_pos + p_stream->entry[i].i_size
665 != p_stream->entry[i + 1].i_pos )
674 /* Add entry to the stsc table */
675 if( i_stsc_last_val != i - i_first )
677 bo_add_32be( stsc, 1 + i_chunk ); // first-chunk
678 bo_add_32be( stsc, i - i_first ) ; // samples-per-chunk
679 bo_add_32be( stsc, 1 ); // sample-descr-index
680 i_stsc_last_val = i - i_first;
685 /* Fix stco entry count */
686 bo_fix_32be( stco, 12, i_chunk );
687 msg_Dbg( p_mux, "created %d chunks (stco)", i_chunk );
689 /* append stco to stbl */
691 box_gather( stbl, stco );
693 /* Fix stsc entry count */
694 bo_fix_32be( stsc, 12, i_stsc_entries );
696 /* append stsc to stbl */
698 box_gather( stbl, stsc );
701 stts = box_full_new( "stts", 0, 0 );
702 bo_add_32be( stts, 0 ); // entry-count (fixed latter)
704 if( p_stream->p_fmt->i_cat == AUDIO_ES )
705 i_timescale = p_stream->p_fmt->audio.i_rate;
709 /* first, create quantified length */
710 for( i = 0, i_dts = 0, i_dts_q = 0; i < p_stream->i_entry_count; i++ )
712 int64_t i_dts_deq = i_dts_q * I64C(1000000) / (int64_t)i_timescale;
713 int64_t i_delta = p_stream->entry[i].i_length + i_dts - i_dts_deq;
715 i_dts += p_stream->entry[i].i_length;
717 p_stream->entry[i].i_length = i_delta * (int64_t)i_timescale / I64C(1000000);;
719 i_dts_q += p_stream->entry[i].i_length;
721 /* then write encoded table */
722 for( i = 0, i_index = 0; i < p_stream->i_entry_count; i_index++)
725 int64_t i_delta = p_stream->entry[i].i_length;
727 while( i < p_stream->i_entry_count )
730 if( i >= p_stream->i_entry_count ||
731 p_stream->entry[i].i_length != i_delta )
737 bo_add_32be( stts, i - i_first ); // sample-count
738 bo_add_32be( stts, i_delta ); // sample-delta
740 bo_fix_32be( stts, 12, i_index );
742 /* append stts to stbl */
744 box_gather( stbl, stts );
746 /* FIXME add ctts ?? FIXME */
748 stsz = box_full_new( "stsz", 0, 0 );
749 bo_add_32be( stsz, 0 ); // sample-size
750 bo_add_32be( stsz, p_stream->i_entry_count ); // sample-count
751 for( i = 0; i < p_stream->i_entry_count; i++ )
753 bo_add_32be( stsz, p_stream->entry[i].i_size ); // sample-size
755 /* append stsz to stbl */
757 box_gather( stbl, stsz );
759 /* create stss table */
761 for( i = 0, i_index = 0; i < p_stream->i_entry_count; i++ )
763 if( p_stream->entry[i].i_flags & (BLOCK_FLAG_TYPE_I<<SOUT_BUFFER_FLAGS_BLOCK_SHIFT) )
767 stss = box_full_new( "stss", 0, 0 );
768 bo_add_32be( stss, 0 ); /* fixed later */
770 bo_add_32be( stss, 1 + i );
776 bo_fix_32be( stss, 12, i_index );
778 box_gather( stbl, stss );
786 static uint32_t mvhd_matrix[9] =
787 { 0x10000, 0, 0, 0, 0x10000, 0, 0, 0, 0x40000000 };
789 static bo_t *GetMoovBox( sout_mux_t *p_mux )
791 sout_mux_sys_t *p_sys = p_mux->p_sys;
796 uint32_t i_movie_timescale = 90000;
797 int64_t i_movie_duration = 0;
799 moov = box_new( "moov" );
801 /* Create general info */
802 for( i_trak = 0; i_trak < p_sys->i_nb_streams; i_trak++ )
804 mp4_stream_t *p_stream = p_sys->pp_streams[i_trak];
805 i_movie_duration = __MAX( i_movie_duration, p_stream->i_duration );
807 msg_Dbg( p_mux, "movie duration %ds",
808 (uint32_t)( i_movie_duration / (mtime_t)1000000 ) );
810 i_movie_duration = i_movie_duration * i_movie_timescale / 1000000;
812 /* *** add /moov/mvhd *** */
813 if( !p_sys->b_64_ext )
815 mvhd = box_full_new( "mvhd", 0, 0 );
816 bo_add_32be( mvhd, get_timestamp() ); // creation time
817 bo_add_32be( mvhd, get_timestamp() ); // modification time
818 bo_add_32be( mvhd, i_movie_timescale); // timescale
819 bo_add_32be( mvhd, i_movie_duration ); // duration
823 mvhd = box_full_new( "mvhd", 1, 0 );
824 bo_add_64be( mvhd, get_timestamp() ); // creation time
825 bo_add_64be( mvhd, get_timestamp() ); // modification time
826 bo_add_32be( mvhd, i_movie_timescale); // timescale
827 bo_add_64be( mvhd, i_movie_duration ); // duration
829 bo_add_32be( mvhd, 0x10000 ); // rate
830 bo_add_16be( mvhd, 0x100 ); // volume
831 bo_add_16be( mvhd, 0 ); // reserved
832 for( i = 0; i < 2; i++ )
834 bo_add_32be( mvhd, 0 ); // reserved
836 for( i = 0; i < 9; i++ )
838 bo_add_32be( mvhd, mvhd_matrix[i] );// matrix
840 for( i = 0; i < 6; i++ )
842 bo_add_32be( mvhd, 0 ); // pre-defined
845 /* Next available track id */
846 bo_add_32be( mvhd, p_sys->i_nb_streams + 1 ); // next-track-id
849 box_gather( moov, mvhd );
851 for( i_trak = 0; i_trak < p_sys->i_nb_streams; i_trak++ )
853 mp4_stream_t *p_stream;
854 uint32_t i_timescale;
856 bo_t *trak, *tkhd, *mdia, *mdhd, *hdlr;
857 bo_t *minf, *dinf, *dref, *url, *stbl;
859 p_stream = p_sys->pp_streams[i_trak];
861 if( p_stream->p_fmt->i_cat != AUDIO_ES &&
862 p_stream->p_fmt->i_cat != VIDEO_ES )
864 msg_Err( p_mux, "FIXME ignoring trak (noaudio&&novideo)" );
868 if( p_stream->p_fmt->i_cat == AUDIO_ES )
869 i_timescale = p_stream->p_fmt->audio.i_rate;
873 /* *** add /moov/trak *** */
874 trak = box_new( "trak" );
876 /* *** add /moov/trak/tkhd *** */
877 if( !p_sys->b_64_ext )
880 tkhd = box_full_new( "tkhd", 0, 0x0f );
882 tkhd = box_full_new( "tkhd", 0, 1 );
884 bo_add_32be( tkhd, get_timestamp() ); // creation time
885 bo_add_32be( tkhd, get_timestamp() ); // modification time
886 bo_add_32be( tkhd, p_stream->i_track_id );
887 bo_add_32be( tkhd, 0 ); // reserved 0
888 bo_add_32be( tkhd, p_stream->i_duration *
889 (int64_t)i_movie_timescale /
890 (mtime_t)1000000 ); // duration
895 tkhd = box_full_new( "tkhd", 1, 0x0f );
897 tkhd = box_full_new( "tkhd", 1, 1 );
899 bo_add_64be( tkhd, get_timestamp() ); // creation time
900 bo_add_64be( tkhd, get_timestamp() ); // modification time
901 bo_add_32be( tkhd, p_stream->i_track_id );
902 bo_add_32be( tkhd, 0 ); // reserved 0
903 bo_add_64be( tkhd, p_stream->i_duration *
904 (int64_t)i_movie_timescale /
905 (mtime_t)1000000 ); // duration
908 for( i = 0; i < 2; i++ )
910 bo_add_32be( tkhd, 0 ); // reserved
912 bo_add_16be( tkhd, 0 ); // layer
913 bo_add_16be( tkhd, 0 ); // pre-defined
915 bo_add_16be( tkhd, p_stream->p_fmt->i_cat == AUDIO_ES ? 0x100 : 0 );
916 bo_add_16be( tkhd, 0 ); // reserved
917 for( i = 0; i < 9; i++ )
919 bo_add_32be( tkhd, mvhd_matrix[i] ); // matrix
921 if( p_stream->p_fmt->i_cat == AUDIO_ES )
923 bo_add_32be( tkhd, 0 ); // width (presentation)
924 bo_add_32be( tkhd, 0 ); // height(presentation)
928 // width (presentation)
929 bo_add_32be( tkhd, p_stream->p_fmt->video.i_aspect *
930 p_stream->p_fmt->video.i_height /
931 VOUT_ASPECT_FACTOR << 16 );
932 // height(presentation)
933 bo_add_32be( tkhd, p_stream->p_fmt->video.i_height << 16 );
936 box_gather( trak, tkhd );
938 /* *** add /moov/trak/mdia *** */
939 mdia = box_new( "mdia" );
942 if( !p_sys->b_64_ext )
944 mdhd = box_full_new( "mdhd", 0, 0 );
945 bo_add_32be( mdhd, get_timestamp() ); // creation time
946 bo_add_32be( mdhd, get_timestamp() ); // modification time
947 bo_add_32be( mdhd, i_timescale); // timescale
948 bo_add_32be( mdhd, p_stream->i_duration * (int64_t)i_timescale /
949 (mtime_t)1000000 ); // duration
953 mdhd = box_full_new( "mdhd", 1, 0 );
954 bo_add_64be( mdhd, get_timestamp() ); // creation time
955 bo_add_64be( mdhd, get_timestamp() ); // modification time
956 bo_add_32be( mdhd, i_timescale); // timescale
957 bo_add_64be( mdhd, p_stream->i_duration * (int64_t)i_timescale /
958 (mtime_t)1000000 ); // duration
961 bo_add_16be( mdhd, 0 ); // language FIXME
962 bo_add_16be( mdhd, 0 ); // predefined
964 box_gather( mdia, mdhd );
966 /* handler reference */
967 hdlr = box_full_new( "hdlr", 0, 0 );
969 bo_add_fourcc( hdlr, "mhlr" ); // media handler
970 if( p_stream->p_fmt->i_cat == AUDIO_ES )
972 bo_add_fourcc( hdlr, "soun" );
976 bo_add_fourcc( hdlr, "vide" );
979 bo_add_32be( hdlr, 0 ); // reserved
980 bo_add_32be( hdlr, 0 ); // reserved
981 bo_add_32be( hdlr, 0 ); // reserved
983 bo_add_8( hdlr, 12 );
984 if( p_stream->p_fmt->i_cat == AUDIO_ES )
985 bo_add_mem( hdlr, 12, "SoundHandler" );
987 bo_add_mem( hdlr, 12, "VideoHandler" );
990 box_gather( mdia, hdlr );
993 minf = box_new( "minf" );
996 if( p_stream->p_fmt->i_cat == AUDIO_ES )
1000 smhd = box_full_new( "smhd", 0, 0 );
1001 bo_add_16be( smhd, 0 ); // balance
1002 bo_add_16be( smhd, 0 ); // reserved
1005 box_gather( minf, smhd );
1007 else if( p_stream->p_fmt->i_cat == VIDEO_ES )
1011 vmhd = box_full_new( "vmhd", 0, 1 );
1012 bo_add_16be( vmhd, 0 ); // graphicsmode
1013 for( i = 0; i < 3; i++ )
1015 bo_add_16be( vmhd, 0 ); // opcolor
1019 box_gather( minf, vmhd );
1023 dinf = box_new( "dinf" );
1024 dref = box_full_new( "dref", 0, 0 );
1025 bo_add_32be( dref, 1 );
1026 url = box_full_new( "url ", 0, 0x01 );
1028 box_gather( dref, url );
1030 box_gather( dinf, dref );
1032 /* append dinf to mdia */
1034 box_gather( minf, dinf );
1037 stbl = GetStblBox( p_mux, p_stream );
1039 /* append stbl to minf */
1040 p_stream->i_stco_pos += minf->i_buffer;
1041 box_gather( minf, stbl );
1043 /* append minf to mdia */
1045 p_stream->i_stco_pos += mdia->i_buffer;
1046 box_gather( mdia, minf );
1048 /* append mdia to trak */
1050 p_stream->i_stco_pos += trak->i_buffer;
1051 box_gather( trak, mdia );
1053 /* append trak to moov */
1055 p_stream->i_stco_pos += moov->i_buffer;
1056 box_gather( moov, trak );
1059 /* Add user data tags */
1060 box_gather( moov, GetUdtaTag( p_mux ) );
1066 /*****************************************************************************
1068 *****************************************************************************/
1069 static void Close( vlc_object_t * p_this )
1071 sout_mux_t *p_mux = (sout_mux_t*)p_this;
1072 sout_mux_sys_t *p_sys = p_mux->p_sys;
1073 sout_buffer_t *p_hdr;
1078 uint64_t i_moov_pos;
1080 msg_Dbg( p_mux, "Close" );
1082 /* Update mdat size */
1083 bo_init( &bo, 0, NULL, VLC_TRUE );
1084 if( p_sys->i_pos - p_sys->i_mdat_pos >= (((uint64_t)1)<<32) )
1087 bo_add_32be ( &bo, 1 );
1088 bo_add_fourcc( &bo, "mdat" );
1089 bo_add_64be ( &bo, p_sys->i_pos - p_sys->i_mdat_pos );
1093 bo_add_32be ( &bo, 8 );
1094 bo_add_fourcc( &bo, "wide" );
1095 bo_add_32be ( &bo, p_sys->i_pos - p_sys->i_mdat_pos - 8 );
1096 bo_add_fourcc( &bo, "mdat" );
1098 p_hdr = bo_to_sout( p_mux->p_sout, &bo );
1099 free( bo.p_buffer );
1101 sout_AccessOutSeek( p_mux->p_access, p_sys->i_mdat_pos );
1102 sout_AccessOutWrite( p_mux->p_access, p_hdr );
1104 /* Create MOOV header */
1105 i_moov_pos = p_sys->i_pos;
1106 moov = GetMoovBox( p_mux );
1108 /* Check we need to create "fast start" files */
1109 var_Create( p_this, "mp4-faststart", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
1110 var_Get( p_this, "mp4-faststart", &val );
1111 p_sys->b_fast_start = val.b_bool;
1112 while( p_sys->b_fast_start )
1114 /* Move data to the end of the file so we can fit the moov header
1116 sout_buffer_t *p_buf;
1117 int64_t i_chunk, i_size = p_sys->i_pos - p_sys->i_mdat_pos;
1118 int i_moov_size = moov->i_buffer;
1122 i_chunk = __MIN( 32768, i_size );
1123 p_buf = sout_BufferNew( p_mux->p_sout, i_chunk );
1124 sout_AccessOutSeek( p_mux->p_access,
1125 p_sys->i_mdat_pos + i_size - i_chunk );
1126 if( sout_AccessOutRead( p_mux->p_access, p_buf ) < i_chunk )
1128 msg_Warn( p_this, "read() not supported by acces output, "
1129 "won't create a fast start file" );
1130 p_sys->b_fast_start = VLC_FALSE;
1133 sout_AccessOutSeek( p_mux->p_access, p_sys->i_mdat_pos + i_size +
1134 i_moov_size - i_chunk );
1135 sout_AccessOutWrite( p_mux->p_access, p_buf );
1139 if( !p_sys->b_fast_start ) break;
1141 /* Fix-up samples to chunks table in MOOV header */
1142 for( i_trak = 0; i_trak < p_sys->i_nb_streams; i_trak++ )
1144 mp4_stream_t *p_stream = p_sys->pp_streams[i_trak];
1148 moov->i_buffer = p_stream->i_stco_pos;
1149 for( i_chunk = 0, i = 0; i < p_stream->i_entry_count; i_chunk++ )
1151 if( p_stream->b_stco64 )
1152 bo_add_64be( moov, p_stream->entry[i].i_pos + i_moov_size);
1154 bo_add_32be( moov, p_stream->entry[i].i_pos + i_moov_size);
1156 while( i < p_stream->i_entry_count )
1158 if( i + 1 < p_stream->i_entry_count &&
1159 p_stream->entry[i].i_pos + p_stream->entry[i].i_size
1160 != p_stream->entry[i + 1].i_pos )
1171 moov->i_buffer = i_moov_size;
1172 i_moov_pos = p_sys->i_mdat_pos;
1173 p_sys->b_fast_start = VLC_FALSE;
1176 /* Write MOOV header */
1177 sout_AccessOutSeek( p_mux->p_access, i_moov_pos );
1178 box_send( p_mux, moov );
1181 for( i_trak = 0; i_trak < p_sys->i_nb_streams; i_trak++ )
1183 mp4_stream_t *p_stream = p_sys->pp_streams[i_trak];
1185 if( p_stream->p_fmt->p_extra )
1187 free( p_stream->p_fmt->p_extra );
1189 free( p_stream->p_fmt );
1190 free( p_stream->entry );
1193 if( p_sys->i_nb_streams ) free( p_sys->pp_streams );
1197 static int Capability( sout_mux_t *p_mux, int i_query, void *p_args,
1202 case SOUT_MUX_CAP_GET_ADD_STREAM_ANY_TIME:
1203 *(vlc_bool_t*)p_answer = VLC_FALSE;
1204 return( SOUT_MUX_CAP_ERR_OK );
1206 return( SOUT_MUX_CAP_ERR_UNIMPLEMENTED );
1210 static int AddStream( sout_mux_t *p_mux, sout_input_t *p_input )
1212 sout_mux_sys_t *p_sys = p_mux->p_sys;
1213 mp4_stream_t *p_stream;
1215 switch( p_input->p_fmt->i_codec )
1217 case VLC_FOURCC( 'm', 'p', '4', 'a' ):
1218 case VLC_FOURCC( 'm', 'p', '4', 'v' ):
1219 case VLC_FOURCC( 'm', 'p', 'g', 'a' ):
1220 case VLC_FOURCC( 'm', 'p', 'g', 'v' ):
1221 case VLC_FOURCC( 'M', 'J', 'P', 'G' ):
1222 case VLC_FOURCC( 'm', 'j', 'p', 'b' ):
1223 case VLC_FOURCC( 'S', 'V', 'Q', '3' ):
1226 msg_Err( p_mux, "unsupported codec %4.4s in mp4",
1227 (char*)&p_input->p_fmt->i_codec );
1228 return VLC_EGENERIC;
1231 p_stream = malloc( sizeof( mp4_stream_t ) );
1232 p_stream->p_fmt = malloc( sizeof( es_format_t ) );
1233 memcpy( p_stream->p_fmt, p_input->p_fmt, sizeof( es_format_t ) );
1234 if( p_stream->p_fmt->i_extra )
1236 p_stream->p_fmt->p_extra =
1237 malloc( p_stream->p_fmt->i_extra );
1238 memcpy( p_stream->p_fmt->p_extra,
1239 p_input->p_fmt->p_extra,
1240 p_input->p_fmt->i_extra );
1242 p_stream->i_track_id = p_sys->i_nb_streams + 1;
1243 p_stream->i_length_neg = 0;
1244 p_stream->i_entry_count = 0;
1245 p_stream->i_entry_max = 1000;
1247 calloc( p_stream->i_entry_max, sizeof( mp4_entry_t ) );
1248 p_stream->i_duration = 0;
1250 p_input->p_sys = p_stream;
1252 msg_Dbg( p_mux, "adding input" );
1254 TAB_APPEND( p_sys->i_nb_streams, p_sys->pp_streams, p_stream );
1258 static int DelStream( sout_mux_t *p_mux, sout_input_t *p_input )
1260 msg_Dbg( p_mux, "removing input" );
1264 /****************************************************************************/
1266 static int MuxGetStream( sout_mux_t *p_mux, int *pi_stream, mtime_t *pi_dts )
1272 for( i = 0, i_dts = 0, i_stream = -1; i < p_mux->i_nb_inputs; i++ )
1274 sout_fifo_t *p_fifo;
1276 p_fifo = p_mux->pp_inputs[i]->p_fifo;
1278 if( p_fifo->i_depth > 1 )
1280 sout_buffer_t *p_buf;
1282 p_buf = sout_FifoShow( p_fifo );
1283 if( i_stream < 0 || p_buf->i_dts < i_dts )
1285 i_dts = p_buf->i_dts;
1291 return( -1 ); // wait that all fifo have at least 2 packets
1296 *pi_stream = i_stream;
1305 static int Mux( sout_mux_t *p_mux )
1307 sout_mux_sys_t *p_sys = p_mux->p_sys;
1311 sout_input_t *p_input;
1313 mp4_stream_t *p_stream;
1314 sout_buffer_t *p_data;
1317 if( MuxGetStream( p_mux, &i_stream, &i_dts) < 0 )
1319 return( VLC_SUCCESS );
1322 if( !p_sys->i_start_dts )
1323 p_sys->i_start_dts = i_dts;
1325 p_input = p_mux->pp_inputs[i_stream];
1326 p_stream = (mp4_stream_t*)p_input->p_sys;
1328 p_data = sout_FifoGet( p_input->p_fifo );
1329 if( p_input->p_fifo->i_depth > 0 )
1331 sout_buffer_t *p_next = sout_FifoShow( p_input->p_fifo );
1332 int64_t i_diff = p_next->i_dts - p_data->i_dts;
1334 if( i_diff < I64C(1000000 ) ) /* protection */
1336 p_data->i_length = i_diff;
1339 if( p_data->i_length <= 0 )
1341 msg_Warn( p_mux, "i_length <= 0" );
1342 p_stream->i_length_neg += p_data->i_length - 1;
1343 p_data->i_length = 1;
1345 else if( p_stream->i_length_neg < 0 )
1347 int64_t i_recover = __MIN( p_data->i_length / 4, - p_stream->i_length_neg );
1349 p_data->i_length -= i_recover;
1350 p_stream->i_length_neg += i_recover;
1353 /* add index entry */
1354 p_stream->entry[p_stream->i_entry_count].i_pos = p_sys->i_pos;
1355 p_stream->entry[p_stream->i_entry_count].i_size = p_data->i_size;
1356 p_stream->entry[p_stream->i_entry_count].i_pts_dts= __MAX( p_data->i_pts - p_data->i_dts, 0 );
1357 p_stream->entry[p_stream->i_entry_count].i_length = p_data->i_length;
1358 p_stream->entry[p_stream->i_entry_count].i_flags = p_data->i_flags;
1360 if( p_stream->i_entry_count == 0 )
1362 /* Here is another bad hack.
1363 * To make sure audio/video are in sync, we report a corrected
1364 * length for the 1st sample. */
1365 p_stream->entry[p_stream->i_entry_count].i_length =
1367 p_data->i_pts - p_sys->i_start_dts;
1370 p_stream->i_entry_count++;
1371 if( p_stream->i_entry_count >= p_stream->i_entry_max )
1373 p_stream->i_entry_max += 1000;
1375 realloc( p_stream->entry,
1376 p_stream->i_entry_max * sizeof( mp4_entry_t ) );
1380 p_stream->i_duration += p_data->i_length;
1381 p_sys->i_pos += p_data->i_size;
1384 sout_AccessOutWrite( p_mux->p_access, p_data );
1387 return( VLC_SUCCESS );
1391 /****************************************************************************/
1393 static void bo_init( bo_t *p_bo, int i_size, uint8_t *p_buffer,
1398 p_bo->i_buffer_size = __MAX( i_size, 1024 );
1399 p_bo->p_buffer = malloc( p_bo->i_buffer_size );
1403 p_bo->i_buffer_size = i_size;
1404 p_bo->p_buffer = p_buffer;
1407 p_bo->b_grow = b_grow;
1411 static void bo_add_8( bo_t *p_bo, uint8_t i )
1413 if( p_bo->i_buffer < p_bo->i_buffer_size )
1415 p_bo->p_buffer[p_bo->i_buffer] = i;
1417 else if( p_bo->b_grow )
1419 p_bo->i_buffer_size += 1024;
1420 p_bo->p_buffer = realloc( p_bo->p_buffer, p_bo->i_buffer_size );
1422 p_bo->p_buffer[p_bo->i_buffer] = i;
1428 static void bo_add_16be( bo_t *p_bo, uint16_t i )
1430 bo_add_8( p_bo, ( ( i >> 8) &0xff ) );
1431 bo_add_8( p_bo, i &0xff );
1434 static void bo_add_24be( bo_t *p_bo, uint32_t i )
1436 bo_add_8( p_bo, ( ( i >> 16) &0xff ) );
1437 bo_add_8( p_bo, ( ( i >> 8) &0xff ) );
1438 bo_add_8( p_bo, ( i &0xff ) );
1440 static void bo_add_32be( bo_t *p_bo, uint32_t i )
1442 bo_add_16be( p_bo, ( ( i >> 16) &0xffff ) );
1443 bo_add_16be( p_bo, i &0xffff );
1446 static void bo_fix_32be ( bo_t *p_bo, int i_pos, uint32_t i)
1448 p_bo->p_buffer[i_pos ] = ( i >> 24 )&0xff;
1449 p_bo->p_buffer[i_pos + 1] = ( i >> 16 )&0xff;
1450 p_bo->p_buffer[i_pos + 2] = ( i >> 8 )&0xff;
1451 p_bo->p_buffer[i_pos + 3] = ( i )&0xff;
1454 static void bo_add_64be( bo_t *p_bo, uint64_t i )
1456 bo_add_32be( p_bo, ( ( i >> 32) &0xffffffff ) );
1457 bo_add_32be( p_bo, i &0xffffffff );
1460 static void bo_add_fourcc( bo_t *p_bo, char *fcc )
1462 bo_add_8( p_bo, fcc[0] );
1463 bo_add_8( p_bo, fcc[1] );
1464 bo_add_8( p_bo, fcc[2] );
1465 bo_add_8( p_bo, fcc[3] );
1468 static void bo_add_mem( bo_t *p_bo, int i_size, uint8_t *p_mem )
1472 for( i = 0; i < i_size; i++ )
1474 bo_add_8( p_bo, p_mem[i] );
1478 static void bo_add_descr( bo_t *p_bo, uint8_t tag, uint32_t i_size )
1484 vals[3] = (unsigned char)(i_length & 0x7f);
1486 vals[2] = (unsigned char)((i_length & 0x7f) | 0x80);
1488 vals[1] = (unsigned char)((i_length & 0x7f) | 0x80);
1490 vals[0] = (unsigned char)((i_length & 0x7f) | 0x80);
1492 bo_add_8( p_bo, tag );
1494 if( i_size < 0x00000080 )
1496 bo_add_8( p_bo, vals[3] );
1498 else if( i_size < 0x00004000 )
1500 bo_add_8( p_bo, vals[2] );
1501 bo_add_8( p_bo, vals[3] );
1503 else if( i_size < 0x00200000 )
1505 bo_add_8( p_bo, vals[1] );
1506 bo_add_8( p_bo, vals[2] );
1507 bo_add_8( p_bo, vals[3] );
1509 else if( i_size < 0x10000000 )
1511 bo_add_8( p_bo, vals[0] );
1512 bo_add_8( p_bo, vals[1] );
1513 bo_add_8( p_bo, vals[2] );
1514 bo_add_8( p_bo, vals[3] );
1518 static void bo_add_bo( bo_t *p_bo, bo_t *p_bo2 )
1522 for( i = 0; i < p_bo2->i_buffer; i++ )
1524 bo_add_8( p_bo, p_bo2->p_buffer[i] );
1528 static bo_t * box_new( char *fcc )
1532 if( ( box = malloc( sizeof( bo_t ) ) ) )
1534 bo_init( box, 0, NULL, VLC_TRUE );
1536 bo_add_32be ( box, 0 );
1537 bo_add_fourcc( box, fcc );
1543 static bo_t * box_full_new( char *fcc, uint8_t v, uint32_t f )
1547 if( ( box = malloc( sizeof( bo_t ) ) ) )
1549 bo_init( box, 0, NULL, VLC_TRUE );
1551 bo_add_32be ( box, 0 );
1552 bo_add_fourcc( box, fcc );
1553 bo_add_8 ( box, v );
1554 bo_add_24be ( box, f );
1560 static void box_fix( bo_t *box )
1564 memcpy( &box_tmp, box, sizeof( bo_t ) );
1566 box_tmp.i_buffer = 0;
1567 bo_add_32be( &box_tmp, box->i_buffer );
1570 static void box_free( bo_t *box )
1574 free( box->p_buffer );
1580 static void box_gather ( bo_t *box, bo_t *box2 )
1582 bo_add_bo( box, box2 );
1586 static sout_buffer_t * bo_to_sout( sout_instance_t *p_sout, bo_t *box )
1588 sout_buffer_t *p_buf;
1590 p_buf = sout_BufferNew( p_sout, box->i_buffer );
1591 if( box->i_buffer > 0 )
1593 memcpy( p_buf->p_buffer, box->p_buffer, box->i_buffer );
1596 p_buf->i_size = box->i_buffer;
1601 static void box_send( sout_mux_t *p_mux, bo_t *box )
1603 sout_buffer_t *p_buf;
1605 p_buf = bo_to_sout( p_mux->p_sout, box );
1608 sout_AccessOutWrite( p_mux->p_access, p_buf );
1611 static int64_t get_timestamp()
1613 int64_t i_timestamp = 0;
1616 i_timestamp = time(NULL);
1617 i_timestamp += 2082844800; // MOV/MP4 start date is 1/1/1904
1618 // 208284480 is (((1970 - 1904) * 365) + 17) * 24 * 60 * 60