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 *****************************************************************************/
94 unsigned int i_entry_count;
95 unsigned int i_entry_max;
101 /* for later stco fix-up (fast start files) */
107 struct sout_mux_sys_t
111 vlc_bool_t b_fast_start;
119 mp4_stream_t **pp_streams;
132 static void bo_init ( bo_t *, int , uint8_t *, vlc_bool_t );
133 static void bo_add_8 ( bo_t *, uint8_t );
134 static void bo_add_16be ( bo_t *, uint16_t );
135 static void bo_add_24be ( bo_t *, uint32_t );
136 static void bo_add_32be ( bo_t *, uint32_t );
137 static void bo_add_64be ( bo_t *, uint64_t );
138 static void bo_add_fourcc(bo_t *, char * );
139 static void bo_add_bo ( bo_t *, bo_t * );
140 static void bo_add_mem ( bo_t *, int , uint8_t * );
141 static void bo_add_descr( bo_t *, uint8_t , uint32_t );
143 static void bo_fix_32be ( bo_t *, int , uint32_t );
145 static bo_t *box_new ( char *fcc );
146 static bo_t *box_full_new( char *fcc, uint8_t v, uint32_t f );
147 static void box_fix ( bo_t *box );
148 static void box_free ( bo_t *box );
149 static void box_gather ( bo_t *box, bo_t *box2 );
151 static void box_send( sout_mux_t *p_mux, bo_t *box );
153 static int64_t get_timestamp();
155 static sout_buffer_t *bo_to_sout( sout_instance_t *p_sout, bo_t *box );
157 /*****************************************************************************
159 *****************************************************************************/
160 static int Open( vlc_object_t *p_this )
162 sout_mux_t *p_mux = (sout_mux_t*)p_this;
163 sout_mux_sys_t *p_sys;
166 p_sys = malloc( sizeof( sout_mux_sys_t ) );
168 p_sys->i_nb_streams = 0;
169 p_sys->pp_streams = NULL;
170 p_sys->i_mdat_pos = 0;
171 p_sys->b_mov = p_mux->psz_mux && !strcmp( p_mux->psz_mux, "mov" );
172 p_sys->i_start_dts = 0;
174 msg_Dbg( p_mux, "Open" );
176 p_mux->pf_capacity = Capability;
177 p_mux->pf_addstream = AddStream;
178 p_mux->pf_delstream = DelStream;
180 p_mux->p_sys = p_sys;
184 /* Now add ftyp header */
185 box = box_new( "ftyp" );
186 bo_add_fourcc( box, "isom" );
187 bo_add_32be ( box, 0 );
188 bo_add_fourcc( box, "mp41" );
191 p_sys->i_pos += box->i_buffer;
192 p_sys->i_mdat_pos = p_sys->i_pos;
194 box_send( p_mux, box );
198 * Quicktime actually doesn't like the 64 bits extensions !!! */
199 p_sys->b_64_ext = VLC_FALSE;
201 /* Now add mdat header */
202 box = box_new( "mdat" );
203 bo_add_64be ( box, 0 ); // enough to store an extended size
205 p_sys->i_pos += box->i_buffer;
207 box_send( p_mux, box );
212 static int GetDescrLength( int i_size )
214 if( i_size < 0x00000080 )
216 else if( i_size < 0x00004000 )
218 else if( i_size < 0x00200000 )
224 static bo_t *GetESDS( mp4_stream_t *p_stream )
228 int i_object_type_indication;
229 int i_decoder_specific_info_size;
231 if( p_stream->p_fmt->i_extra > 0 )
233 i_decoder_specific_info_size =
234 GetDescrLength( p_stream->p_fmt->i_extra );
238 i_decoder_specific_info_size = 0;
241 esds = box_full_new( "esds", 0, 0 );
244 bo_add_descr( esds, 0x03, 3 +
245 GetDescrLength( 13 + i_decoder_specific_info_size ) +
246 GetDescrLength( 1 ) );
247 bo_add_16be( esds, p_stream->i_track_id );
248 bo_add_8 ( esds, 0x1f ); // flags=0|streamPriority=0x1f
250 /* DecoderConfigDescr */
251 bo_add_descr( esds, 0x04, 13 + i_decoder_specific_info_size );
253 switch( p_stream->p_fmt->i_codec )
255 case VLC_FOURCC( 'm', 'p', '4', 'v' ):
256 i_object_type_indication = 0x20;
258 case VLC_FOURCC( 'm', 'p', 'g', 'v' ):
259 /* FIXME MPEG-I=0x6b, MPEG-II = 0x60 -> 0x65 */
260 i_object_type_indication = 0x60;
262 case VLC_FOURCC( 'm', 'p', '4', 'a' ):
263 /* FIXME for mpeg2-aac == 0x66->0x68 */
264 i_object_type_indication = 0x40;
266 case VLC_FOURCC( 'm', 'p', 'g', 'a' ):
267 i_object_type_indication =
268 p_stream->p_fmt->audio.i_rate < 32000 ? 0x69 : 0x6b;
271 i_object_type_indication = 0x00;
274 i_stream_type = p_stream->p_fmt->i_cat == VIDEO_ES ? 0x04 : 0x05;
276 bo_add_8 ( esds, i_object_type_indication );
277 bo_add_8 ( esds, ( i_stream_type << 2 ) | 1 );
278 bo_add_24be( esds, 1024 * 1024 ); // bufferSizeDB
279 bo_add_32be( esds, 0x7fffffff ); // maxBitrate
280 bo_add_32be( esds, 0 ); // avgBitrate
282 if( p_stream->p_fmt->i_extra > 0 )
286 /* DecoderSpecificInfo */
287 bo_add_descr( esds, 0x05, p_stream->p_fmt->i_extra );
289 for( i = 0; i < p_stream->p_fmt->i_extra; i++ )
291 bo_add_8( esds, ((uint8_t*)p_stream->p_fmt->p_extra)[i] );
295 /* SL_Descr mandatory */
296 bo_add_descr( esds, 0x06, 1 );
297 bo_add_8 ( esds, 0x02 ); // sl_predefined
304 static bo_t *GetWaveTag( mp4_stream_t *p_stream )
309 wave = box_new( "wave" );
311 box = box_new( "frma" );
312 bo_add_fourcc( box, "mp4a" );
314 box_gather( wave, box );
316 box = box_new( "mp4a" );
317 bo_add_32be( box, 0 );
319 box_gather( wave, box );
321 box = GetESDS( p_stream );
323 box_gather( wave, box );
325 box = box_new( "srcq" );
326 bo_add_32be( box, 0x40 );
328 box_gather( wave, box );
331 bo_add_32be( wave, 8 ); /* new empty box */
332 bo_add_32be( wave, 0 ); /* box label */
339 /* TODO: No idea about these values */
340 static bo_t *GetSVQ3Tag( mp4_stream_t *p_stream )
342 bo_t *smi = box_new( "SMI " );
344 if( p_stream->p_fmt->i_extra > 0x4e )
346 uint8_t *p_end = &((uint8_t*)p_stream->p_fmt->p_extra)[p_stream->p_fmt->i_extra];
347 uint8_t *p = &((uint8_t*)p_stream->p_fmt->p_extra)[0x46];
349 while( p + 8 < p_end )
351 int i_size = GetDWBE( p );
354 /* FIXME handle 1 as long size */
357 if( !strncmp( &p[4], "SMI ", 4 ) )
359 bo_add_mem( smi, p_end - p - 8, &p[8] );
366 /* Create a dummy one in fallback */
367 bo_add_fourcc( smi, "SEQH" );
368 bo_add_32be( smi, 0x5 );
369 bo_add_32be( smi, 0xe2c0211d );
370 bo_add_8( smi, 0xc0 );
376 static bo_t *GetUdtaTag( sout_mux_t *p_mux )
378 sout_mux_sys_t *p_sys = p_mux->p_sys;
379 bo_t *udta = box_new( "udta" );
383 for( i_track = 0; i_track < p_sys->i_nb_streams; i_track++ )
385 mp4_stream_t *p_stream = p_sys->pp_streams[i_track];
387 if( p_stream->p_fmt->i_codec == VLC_FOURCC('m','p','4','v') ||
388 p_stream->p_fmt->i_codec == VLC_FOURCC('m','p','4','a') )
390 bo_t *box = box_new( "\251req" );
392 bo_add_16be( box, sizeof("QuickTime 6.0 or greater") - 1);
393 bo_add_16be( box, 0 );
394 bo_add_mem( box, sizeof("QuickTime 6.0 or greater") - 1,
395 "QuickTime 6.0 or greater" );
397 box_gather( udta, box );
404 bo_t *box = box_new( "\251enc" );
406 bo_add_16be( box, sizeof(PACKAGE_STRING " stream output") - 1);
407 bo_add_16be( box, 0 );
408 bo_add_mem( box, sizeof(PACKAGE_STRING " stream output") - 1,
409 PACKAGE_STRING " stream output" );
411 box_gather( udta, box );
418 static bo_t *GetSounBox( sout_mux_t *p_mux, mp4_stream_t *p_stream )
420 sout_mux_sys_t *p_sys = p_mux->p_sys;
421 vlc_bool_t b_descr = VLC_FALSE;
426 switch( p_stream->p_fmt->i_codec )
428 case VLC_FOURCC('m','p','4','a'):
429 memcpy( fcc, "mp4a", 4 );
433 case VLC_FOURCC('m','p','g','a'):
435 memcpy( fcc, ".mp3", 4 );
438 memcpy( fcc, "mp4a", 4 );
444 memcpy( fcc, (char*)&p_stream->p_fmt->i_codec, 4 );
448 soun = box_new( fcc );
449 for( i = 0; i < 6; i++ )
451 bo_add_8( soun, 0 ); // reserved;
453 bo_add_16be( soun, 1 ); // data-reference-index
455 /* SoundDescription */
457 p_stream->p_fmt->i_codec == VLC_FOURCC('m','p','4','a') )
459 bo_add_16be( soun, 1 ); // version 1;
463 bo_add_16be( soun, 0 ); // version 0;
465 bo_add_16be( soun, 0 ); // revision level (0)
466 bo_add_32be( soun, 0 ); // vendor
468 bo_add_16be( soun, p_stream->p_fmt->audio.i_channels );
470 bo_add_16be( soun, p_stream->p_fmt->audio.i_bitspersample ?
471 p_stream->p_fmt->audio.i_bitspersample : 16 );
472 bo_add_16be( soun, -2 ); // compression id
473 bo_add_16be( soun, 0 ); // packet size (0)
474 bo_add_16be( soun, p_stream->p_fmt->audio.i_rate ); // sampleratehi
475 bo_add_16be( soun, 0 ); // sampleratelo
477 /* Extended data for SoundDescription V1 */
479 p_stream->p_fmt->i_codec == VLC_FOURCC('m','p','4','a') )
481 /* samples per packet */
482 bo_add_32be( soun, p_stream->p_fmt->audio.i_frame_length );
483 bo_add_32be( soun, 1536 ); /* bytes per packet */
484 bo_add_32be( soun, 2 ); /* bytes per frame */
485 /* bytes per sample */
486 bo_add_32be( soun, 2 /*p_stream->p_fmt->audio.i_bitspersample/8 */);
489 /* Add an ES Descriptor */
495 p_stream->p_fmt->i_codec == VLC_FOURCC('m','p','4','a') )
497 box = GetWaveTag( p_stream );
501 box = GetESDS( p_stream );
504 box_gather( soun, box );
512 static bo_t *GetVideBox( sout_mux_t *p_mux, mp4_stream_t *p_stream )
519 switch( p_stream->p_fmt->i_codec )
521 case VLC_FOURCC('m','p','4','v'):
522 case VLC_FOURCC('m','p','g','v'):
523 memcpy( fcc, "mp4v", 4 );
526 case VLC_FOURCC('M','J','P','G'):
527 memcpy( fcc, "mjpa", 4 );
530 case VLC_FOURCC('S','V','Q','3'):
531 memcpy( fcc, "SVQ3", 4 );
535 memcpy( fcc, (char*)&p_stream->p_fmt->i_codec, 4 );
539 vide = box_new( fcc );
540 for( i = 0; i < 6; i++ )
542 bo_add_8( vide, 0 ); // reserved;
544 bo_add_16be( vide, 1 ); // data-reference-index
546 bo_add_16be( vide, 0 ); // predefined;
547 bo_add_16be( vide, 0 ); // reserved;
548 for( i = 0; i < 3; i++ )
550 bo_add_32be( vide, 0 ); // predefined;
553 bo_add_16be( vide, p_stream->p_fmt->video.i_width ); // i_width
554 bo_add_16be( vide, p_stream->p_fmt->video.i_height ); // i_height
556 bo_add_32be( vide, 0x00480000 ); // h 72dpi
557 bo_add_32be( vide, 0x00480000 ); // v 72dpi
559 bo_add_32be( vide, 0 ); // data size, always 0
560 bo_add_16be( vide, 1 ); // frames count per sample
563 for( i = 0; i < 32; i++ )
568 bo_add_16be( vide, 0x18 ); // depth
569 bo_add_16be( vide, 0xffff ); // predefined
571 /* add an ES Descriptor */
572 switch( p_stream->p_fmt->i_codec )
574 case VLC_FOURCC('m','p','4','v'):
575 case VLC_FOURCC('m','p','g','v'):
577 bo_t *esds = GetESDS( p_stream );
580 box_gather( vide, esds );
584 case VLC_FOURCC('S','V','Q','3'):
586 bo_t *esds = GetSVQ3Tag( p_stream );
589 box_gather( vide, esds );
602 static bo_t *GetStblBox( sout_mux_t *p_mux, mp4_stream_t *p_stream )
604 sout_mux_sys_t *p_sys = p_mux->p_sys;
605 unsigned int i_chunk, i_stsc_last_val, i_stsc_entries, i, i_index;
606 bo_t *stbl, *stsd, *stts, *stco, *stsc, *stsz;
607 uint32_t i_timescale;
609 stbl = box_new( "stbl" );
610 stsd = box_full_new( "stsd", 0, 0 );
611 bo_add_32be( stsd, 1 );
613 if( p_stream->p_fmt->i_cat == AUDIO_ES )
615 bo_t *soun = GetSounBox( p_mux, p_stream );
616 box_gather( stsd, soun );
618 else if( p_stream->p_fmt->i_cat == VIDEO_ES )
620 bo_t *vide = GetVideBox( p_mux, p_stream );
621 box_gather( stsd, vide );
624 /* append stsd to stbl */
626 box_gather( stbl, stsd );
628 /* chunk offset table */
629 p_stream->i_stco_pos = stbl->i_buffer + 16;
630 if( p_sys->i_pos >= (((uint64_t)0x1) << 32) )
632 /* 64 bits version */
633 p_stream->b_stco64 = VLC_TRUE;
634 stco = box_full_new( "co64", 0, 0 );
638 /* 32 bits version */
639 p_stream->b_stco64 = VLC_FALSE;
640 stco = box_full_new( "stco", 0, 0 );
642 bo_add_32be( stco, 0 ); // entry-count (fixed latter)
644 /* sample to chunk table */
645 stsc = box_full_new( "stsc", 0, 0 );
646 bo_add_32be( stsc, 0 ); // entry-count (fixed latter)
648 for( i_chunk = 0, i_stsc_last_val = 0, i_stsc_entries = 0, i = 0;
649 i < p_stream->i_entry_count; i_chunk++ )
653 if( p_stream->b_stco64 )
654 bo_add_64be( stco, p_stream->entry[i].i_pos );
656 bo_add_32be( stco, p_stream->entry[i].i_pos );
658 while( i < p_stream->i_entry_count )
660 if( i + 1 < p_stream->i_entry_count &&
661 p_stream->entry[i].i_pos + p_stream->entry[i].i_size
662 != p_stream->entry[i + 1].i_pos )
671 /* Add entry to the stsc table */
672 if( i_stsc_last_val != i - i_first )
674 bo_add_32be( stsc, 1 + i_chunk ); // first-chunk
675 bo_add_32be( stsc, i - i_first ) ; // samples-per-chunk
676 bo_add_32be( stsc, 1 ); // sample-descr-index
677 i_stsc_last_val = i - i_first;
682 /* Fix stco entry count */
683 bo_fix_32be( stco, 12, i_chunk );
684 msg_Dbg( p_mux, "created %d chunks (stco)", i_chunk );
686 /* append stco to stbl */
688 box_gather( stbl, stco );
690 /* Fix stsc entry count */
691 bo_fix_32be( stsc, 12, i_stsc_entries );
693 /* append stsc to stbl */
695 box_gather( stbl, stsc );
698 stts = box_full_new( "stts", 0, 0 );
699 bo_add_32be( stts, 0 ); // entry-count (fixed latter)
701 if( p_stream->p_fmt->i_cat == AUDIO_ES )
702 i_timescale = p_stream->p_fmt->audio.i_rate;
706 for( i = 0, i_index = 0; i < p_stream->i_entry_count; i_index++)
712 i_delta = p_stream->entry[i].i_length;
714 while( i < p_stream->i_entry_count )
716 if( i + 1 < p_stream->i_entry_count &&
717 p_stream->entry[i + 1].i_length != i_delta )
726 bo_add_32be( stts, i - i_first ); // sample-count
727 bo_add_32be( stts, i_delta * (int64_t)i_timescale /
728 (int64_t)1000000 ); // sample-delta
730 bo_fix_32be( stts, 12, i_index );
732 /* append stts to stbl */
734 box_gather( stbl, stts );
736 /* FIXME add ctts ?? FIXME */
738 stsz = box_full_new( "stsz", 0, 0 );
739 bo_add_32be( stsz, 0 ); // sample-size
740 bo_add_32be( stsz, p_stream->i_entry_count ); // sample-count
741 for( i = 0; i < p_stream->i_entry_count; i++ )
743 bo_add_32be( stsz, p_stream->entry[i].i_size ); // sample-size
745 /* append stsz to stbl */
747 box_gather( stbl, stsz );
754 static uint32_t mvhd_matrix[9] =
755 { 0x10000, 0, 0, 0, 0x10000, 0, 0, 0, 0x40000000 };
757 static bo_t *GetMoovBox( sout_mux_t *p_mux )
759 sout_mux_sys_t *p_sys = p_mux->p_sys;
764 uint32_t i_movie_timescale = 90000;
765 int64_t i_movie_duration = 0;
767 moov = box_new( "moov" );
769 /* Create general info */
770 for( i_trak = 0; i_trak < p_sys->i_nb_streams; i_trak++ )
772 mp4_stream_t *p_stream = p_sys->pp_streams[i_trak];
773 i_movie_duration = __MAX( i_movie_duration, p_stream->i_duration );
775 msg_Dbg( p_mux, "movie duration %ds",
776 (uint32_t)( i_movie_duration / (mtime_t)1000000 ) );
778 i_movie_duration = i_movie_duration * i_movie_timescale / 1000000;
780 /* *** add /moov/mvhd *** */
781 if( !p_sys->b_64_ext )
783 mvhd = box_full_new( "mvhd", 0, 0 );
784 bo_add_32be( mvhd, get_timestamp() ); // creation time
785 bo_add_32be( mvhd, get_timestamp() ); // modification time
786 bo_add_32be( mvhd, i_movie_timescale); // timescale
787 bo_add_32be( mvhd, i_movie_duration ); // duration
791 mvhd = box_full_new( "mvhd", 1, 0 );
792 bo_add_64be( mvhd, get_timestamp() ); // creation time
793 bo_add_64be( mvhd, get_timestamp() ); // modification time
794 bo_add_32be( mvhd, i_movie_timescale); // timescale
795 bo_add_64be( mvhd, i_movie_duration ); // duration
797 bo_add_32be( mvhd, 0x10000 ); // rate
798 bo_add_16be( mvhd, 0x100 ); // volume
799 bo_add_16be( mvhd, 0 ); // reserved
800 for( i = 0; i < 2; i++ )
802 bo_add_32be( mvhd, 0 ); // reserved
804 for( i = 0; i < 9; i++ )
806 bo_add_32be( mvhd, mvhd_matrix[i] );// matrix
808 for( i = 0; i < 6; i++ )
810 bo_add_32be( mvhd, 0 ); // pre-defined
813 /* Next available track id */
814 bo_add_32be( mvhd, p_sys->i_nb_streams + 1 ); // next-track-id
817 box_gather( moov, mvhd );
819 for( i_trak = 0; i_trak < p_sys->i_nb_streams; i_trak++ )
821 mp4_stream_t *p_stream;
822 uint32_t i_timescale;
824 bo_t *trak, *tkhd, *mdia, *mdhd, *hdlr;
825 bo_t *minf, *dinf, *dref, *url, *stbl;
827 p_stream = p_sys->pp_streams[i_trak];
829 if( p_stream->p_fmt->i_cat != AUDIO_ES &&
830 p_stream->p_fmt->i_cat != VIDEO_ES )
832 msg_Err( p_mux, "FIXME ignoring trak (noaudio&&novideo)" );
836 if( p_stream->p_fmt->i_cat == AUDIO_ES )
837 i_timescale = p_stream->p_fmt->audio.i_rate;
841 /* *** add /moov/trak *** */
842 trak = box_new( "trak" );
844 /* *** add /moov/trak/tkhd *** */
845 if( !p_sys->b_64_ext )
848 tkhd = box_full_new( "tkhd", 0, 0x0f );
850 tkhd = box_full_new( "tkhd", 0, 1 );
852 bo_add_32be( tkhd, get_timestamp() ); // creation time
853 bo_add_32be( tkhd, get_timestamp() ); // modification time
854 bo_add_32be( tkhd, p_stream->i_track_id );
855 bo_add_32be( tkhd, 0 ); // reserved 0
856 bo_add_32be( tkhd, p_stream->i_duration *
857 (int64_t)i_movie_timescale /
858 (mtime_t)1000000 ); // duration
863 tkhd = box_full_new( "tkhd", 1, 0x0f );
865 tkhd = box_full_new( "tkhd", 1, 1 );
867 bo_add_64be( tkhd, get_timestamp() ); // creation time
868 bo_add_64be( tkhd, get_timestamp() ); // modification time
869 bo_add_32be( tkhd, p_stream->i_track_id );
870 bo_add_32be( tkhd, 0 ); // reserved 0
871 bo_add_64be( tkhd, p_stream->i_duration *
872 (int64_t)i_movie_timescale /
873 (mtime_t)1000000 ); // duration
876 for( i = 0; i < 2; i++ )
878 bo_add_32be( tkhd, 0 ); // reserved
880 bo_add_16be( tkhd, 0 ); // layer
881 bo_add_16be( tkhd, 0 ); // pre-defined
883 bo_add_16be( tkhd, p_stream->p_fmt->i_cat == AUDIO_ES ? 0x100 : 0 );
884 bo_add_16be( tkhd, 0 ); // reserved
885 for( i = 0; i < 9; i++ )
887 bo_add_32be( tkhd, mvhd_matrix[i] ); // matrix
889 if( p_stream->p_fmt->i_cat == AUDIO_ES )
891 bo_add_32be( tkhd, 0 ); // width (presentation)
892 bo_add_32be( tkhd, 0 ); // height(presentation)
896 // width (presentation)
897 bo_add_32be( tkhd, p_stream->p_fmt->video.i_aspect *
898 p_stream->p_fmt->video.i_height /
899 VOUT_ASPECT_FACTOR << 16 );
900 // height(presentation)
901 bo_add_32be( tkhd, p_stream->p_fmt->video.i_height << 16 );
904 box_gather( trak, tkhd );
906 /* *** add /moov/trak/mdia *** */
907 mdia = box_new( "mdia" );
910 if( !p_sys->b_64_ext )
912 mdhd = box_full_new( "mdhd", 0, 0 );
913 bo_add_32be( mdhd, get_timestamp() ); // creation time
914 bo_add_32be( mdhd, get_timestamp() ); // modification time
915 bo_add_32be( mdhd, i_timescale); // timescale
916 bo_add_32be( mdhd, p_stream->i_duration * (int64_t)i_timescale /
917 (mtime_t)1000000 ); // duration
921 mdhd = box_full_new( "mdhd", 1, 0 );
922 bo_add_64be( mdhd, get_timestamp() ); // creation time
923 bo_add_64be( mdhd, get_timestamp() ); // modification time
924 bo_add_32be( mdhd, i_timescale); // timescale
925 bo_add_64be( mdhd, p_stream->i_duration * (int64_t)i_timescale /
926 (mtime_t)1000000 ); // duration
929 bo_add_16be( mdhd, 0 ); // language FIXME
930 bo_add_16be( mdhd, 0 ); // predefined
932 box_gather( mdia, mdhd );
934 /* handler reference */
935 hdlr = box_full_new( "hdlr", 0, 0 );
937 bo_add_fourcc( hdlr, "mhlr" ); // media handler
938 if( p_stream->p_fmt->i_cat == AUDIO_ES )
940 bo_add_fourcc( hdlr, "soun" );
944 bo_add_fourcc( hdlr, "vide" );
947 bo_add_32be( hdlr, 0 ); // reserved
948 bo_add_32be( hdlr, 0 ); // reserved
949 bo_add_32be( hdlr, 0 ); // reserved
951 bo_add_8( hdlr, 12 );
952 if( p_stream->p_fmt->i_cat == AUDIO_ES )
953 bo_add_mem( hdlr, 12, "SoundHandler" );
955 bo_add_mem( hdlr, 12, "VideoHandler" );
958 box_gather( mdia, hdlr );
961 minf = box_new( "minf" );
964 if( p_stream->p_fmt->i_cat == AUDIO_ES )
968 smhd = box_full_new( "smhd", 0, 0 );
969 bo_add_16be( smhd, 0 ); // balance
970 bo_add_16be( smhd, 0 ); // reserved
973 box_gather( minf, smhd );
975 else if( p_stream->p_fmt->i_cat == VIDEO_ES )
979 vmhd = box_full_new( "vmhd", 0, 1 );
980 bo_add_16be( vmhd, 0 ); // graphicsmode
981 for( i = 0; i < 3; i++ )
983 bo_add_16be( vmhd, 0 ); // opcolor
987 box_gather( minf, vmhd );
991 dinf = box_new( "dinf" );
992 dref = box_full_new( "dref", 0, 0 );
993 bo_add_32be( dref, 1 );
994 url = box_full_new( "url ", 0, 0x01 );
996 box_gather( dref, url );
998 box_gather( dinf, dref );
1000 /* append dinf to mdia */
1002 box_gather( minf, dinf );
1005 stbl = GetStblBox( p_mux, p_stream );
1007 /* append stbl to minf */
1008 p_stream->i_stco_pos += minf->i_buffer;
1009 box_gather( minf, stbl );
1011 /* append minf to mdia */
1013 p_stream->i_stco_pos += mdia->i_buffer;
1014 box_gather( mdia, minf );
1016 /* append mdia to trak */
1018 p_stream->i_stco_pos += trak->i_buffer;
1019 box_gather( trak, mdia );
1021 /* append trak to moov */
1023 p_stream->i_stco_pos += moov->i_buffer;
1024 box_gather( moov, trak );
1027 /* Add user data tags */
1028 box_gather( moov, GetUdtaTag( p_mux ) );
1034 /*****************************************************************************
1036 *****************************************************************************/
1037 static void Close( vlc_object_t * p_this )
1039 sout_mux_t *p_mux = (sout_mux_t*)p_this;
1040 sout_mux_sys_t *p_sys = p_mux->p_sys;
1041 sout_buffer_t *p_hdr;
1046 uint64_t i_moov_pos;
1048 msg_Dbg( p_mux, "Close" );
1050 /* Update mdat size */
1051 bo_init( &bo, 0, NULL, VLC_TRUE );
1052 if( p_sys->i_pos - p_sys->i_mdat_pos >= (((uint64_t)1)<<32) )
1055 bo_add_32be ( &bo, 1 );
1056 bo_add_fourcc( &bo, "mdat" );
1057 bo_add_64be ( &bo, p_sys->i_pos - p_sys->i_mdat_pos );
1061 bo_add_32be ( &bo, 8 );
1062 bo_add_fourcc( &bo, "wide" );
1063 bo_add_32be ( &bo, p_sys->i_pos - p_sys->i_mdat_pos - 8 );
1064 bo_add_fourcc( &bo, "mdat" );
1066 p_hdr = bo_to_sout( p_mux->p_sout, &bo );
1067 free( bo.p_buffer );
1069 sout_AccessOutSeek( p_mux->p_access, p_sys->i_mdat_pos );
1070 sout_AccessOutWrite( p_mux->p_access, p_hdr );
1072 /* Create MOOV header */
1073 i_moov_pos = p_sys->i_pos;
1074 moov = GetMoovBox( p_mux );
1076 /* Check we need to create "fast start" files */
1077 var_Create( p_this, "mp4-faststart", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
1078 var_Get( p_this, "mp4-faststart", &val );
1079 p_sys->b_fast_start = val.b_bool;
1080 while( p_sys->b_fast_start )
1082 /* Move data to the end of the file so we can fit the moov header
1084 sout_buffer_t *p_buf;
1085 int64_t i_chunk, i_size = p_sys->i_pos - p_sys->i_mdat_pos;
1086 int i_moov_size = moov->i_buffer;
1090 i_chunk = __MIN( 32768, i_size );
1091 p_buf = sout_BufferNew( p_mux->p_sout, i_chunk );
1092 sout_AccessOutSeek( p_mux->p_access,
1093 p_sys->i_mdat_pos + i_size - i_chunk );
1094 if( sout_AccessOutRead( p_mux->p_access, p_buf ) < i_chunk )
1096 msg_Warn( p_this, "read() not supported by acces output, "
1097 "won't create a fast start file" );
1098 p_sys->b_fast_start = VLC_FALSE;
1101 sout_AccessOutSeek( p_mux->p_access, p_sys->i_mdat_pos + i_size +
1102 i_moov_size - i_chunk );
1103 sout_AccessOutWrite( p_mux->p_access, p_buf );
1107 if( !p_sys->b_fast_start ) break;
1109 /* Fix-up samples to chunks table in MOOV header */
1110 for( i_trak = 0; i_trak < p_sys->i_nb_streams; i_trak++ )
1112 mp4_stream_t *p_stream = p_sys->pp_streams[i_trak];
1116 moov->i_buffer = p_stream->i_stco_pos;
1117 for( i_chunk = 0, i = 0; i < p_stream->i_entry_count; i_chunk++ )
1119 if( p_stream->b_stco64 )
1120 bo_add_64be( moov, p_stream->entry[i].i_pos + i_moov_size);
1122 bo_add_32be( moov, p_stream->entry[i].i_pos + i_moov_size);
1124 while( i < p_stream->i_entry_count )
1126 if( i + 1 < p_stream->i_entry_count &&
1127 p_stream->entry[i].i_pos + p_stream->entry[i].i_size
1128 != p_stream->entry[i + 1].i_pos )
1139 moov->i_buffer = i_moov_size;
1140 i_moov_pos = p_sys->i_mdat_pos;
1141 p_sys->b_fast_start = VLC_FALSE;
1144 /* Write MOOV header */
1145 sout_AccessOutSeek( p_mux->p_access, i_moov_pos );
1146 box_send( p_mux, moov );
1149 for( i_trak = 0; i_trak < p_sys->i_nb_streams; i_trak++ )
1151 mp4_stream_t *p_stream = p_sys->pp_streams[i_trak];
1153 if( p_stream->p_fmt->p_extra )
1155 free( p_stream->p_fmt->p_extra );
1157 free( p_stream->p_fmt );
1158 free( p_stream->entry );
1161 if( p_sys->i_nb_streams ) free( p_sys->pp_streams );
1165 static int Capability( sout_mux_t *p_mux, int i_query, void *p_args,
1170 case SOUT_MUX_CAP_GET_ADD_STREAM_ANY_TIME:
1171 *(vlc_bool_t*)p_answer = VLC_FALSE;
1172 return( SOUT_MUX_CAP_ERR_OK );
1174 return( SOUT_MUX_CAP_ERR_UNIMPLEMENTED );
1178 static int AddStream( sout_mux_t *p_mux, sout_input_t *p_input )
1180 sout_mux_sys_t *p_sys = p_mux->p_sys;
1181 mp4_stream_t *p_stream;
1183 switch( p_input->p_fmt->i_codec )
1185 case VLC_FOURCC( 'm', 'p', '4', 'a' ):
1186 case VLC_FOURCC( 'm', 'p', '4', 'v' ):
1187 case VLC_FOURCC( 'm', 'p', 'g', 'a' ):
1188 case VLC_FOURCC( 'm', 'p', 'g', 'v' ):
1189 case VLC_FOURCC( 'M', 'J', 'P', 'G' ):
1190 case VLC_FOURCC( 'm', 'j', 'p', 'b' ):
1191 case VLC_FOURCC( 'S', 'V', 'Q', '3' ):
1194 msg_Err( p_mux, "unsupported codec %4.4s in mp4",
1195 (char*)&p_input->p_fmt->i_codec );
1196 return VLC_EGENERIC;
1199 p_stream = malloc( sizeof( mp4_stream_t ) );
1200 p_stream->p_fmt = malloc( sizeof( es_format_t ) );
1201 memcpy( p_stream->p_fmt, p_input->p_fmt, sizeof( es_format_t ) );
1202 if( p_stream->p_fmt->i_extra )
1204 p_stream->p_fmt->p_extra =
1205 malloc( p_stream->p_fmt->i_extra );
1206 memcpy( p_stream->p_fmt->p_extra,
1207 p_input->p_fmt->p_extra,
1208 p_input->p_fmt->i_extra );
1210 p_stream->i_track_id = p_sys->i_nb_streams + 1;
1211 p_stream->i_entry_count = 0;
1212 p_stream->i_entry_max = 1000;
1214 calloc( p_stream->i_entry_max, sizeof( mp4_entry_t ) );
1215 p_stream->i_duration = 0;
1217 p_input->p_sys = p_stream;
1219 msg_Dbg( p_mux, "adding input" );
1221 TAB_APPEND( p_sys->i_nb_streams, p_sys->pp_streams, p_stream );
1225 static int DelStream( sout_mux_t *p_mux, sout_input_t *p_input )
1227 msg_Dbg( p_mux, "removing input" );
1231 /****************************************************************************/
1233 static int MuxGetStream( sout_mux_t *p_mux, int *pi_stream, mtime_t *pi_dts )
1239 for( i = 0, i_dts = 0, i_stream = -1; i < p_mux->i_nb_inputs; i++ )
1241 sout_fifo_t *p_fifo;
1243 p_fifo = p_mux->pp_inputs[i]->p_fifo;
1245 if( p_fifo->i_depth > 1 )
1247 sout_buffer_t *p_buf;
1249 p_buf = sout_FifoShow( p_fifo );
1250 if( i_stream < 0 || p_buf->i_dts < i_dts )
1252 i_dts = p_buf->i_dts;
1258 return( -1 ); // wait that all fifo have at least 2 packets
1263 *pi_stream = i_stream;
1272 static int Mux( sout_mux_t *p_mux )
1274 sout_mux_sys_t *p_sys = p_mux->p_sys;
1278 sout_input_t *p_input;
1280 mp4_stream_t *p_stream;
1281 sout_buffer_t *p_data;
1284 if( MuxGetStream( p_mux, &i_stream, &i_dts) < 0 )
1286 return( VLC_SUCCESS );
1289 if( !p_sys->i_start_dts )
1290 p_sys->i_start_dts = i_dts;
1292 p_input = p_mux->pp_inputs[i_stream];
1293 p_stream = (mp4_stream_t*)p_input->p_sys;
1295 p_data = sout_FifoGet( p_input->p_fifo );
1297 /* add index entry */
1298 p_stream->entry[p_stream->i_entry_count].i_pos = p_sys->i_pos;
1299 p_stream->entry[p_stream->i_entry_count].i_size = p_data->i_size;
1300 p_stream->entry[p_stream->i_entry_count].i_pts = p_data->i_pts;
1301 p_stream->entry[p_stream->i_entry_count].i_dts = p_data->i_dts;
1302 p_stream->entry[p_stream->i_entry_count].i_length=
1303 __MAX( p_data->i_length, 0 );
1305 if( p_stream->i_entry_count == 0 )
1307 /* Here is another bad hack.
1308 * To make sure audio/video are in sync, we report a corrected
1309 * length for the 1st sample. */
1310 p_stream->entry[p_stream->i_entry_count].i_length =
1311 __MAX( p_data->i_length, 0 ) +
1312 p_data->i_pts - p_sys->i_start_dts;
1315 p_stream->i_entry_count++;
1316 if( p_stream->i_entry_count >= p_stream->i_entry_max )
1318 p_stream->i_entry_max += 1000;
1320 realloc( p_stream->entry,
1321 p_stream->i_entry_max * sizeof( mp4_entry_t ) );
1325 p_stream->i_duration += __MAX( p_data->i_length, 0 );
1326 p_sys->i_pos += p_data->i_size;
1329 sout_AccessOutWrite( p_mux->p_access, p_data );
1332 return( VLC_SUCCESS );
1336 /****************************************************************************/
1338 static void bo_init( bo_t *p_bo, int i_size, uint8_t *p_buffer,
1343 p_bo->i_buffer_size = __MAX( i_size, 1024 );
1344 p_bo->p_buffer = malloc( p_bo->i_buffer_size );
1348 p_bo->i_buffer_size = i_size;
1349 p_bo->p_buffer = p_buffer;
1352 p_bo->b_grow = b_grow;
1356 static void bo_add_8( bo_t *p_bo, uint8_t i )
1358 if( p_bo->i_buffer < p_bo->i_buffer_size )
1360 p_bo->p_buffer[p_bo->i_buffer] = i;
1362 else if( p_bo->b_grow )
1364 p_bo->i_buffer_size += 1024;
1365 p_bo->p_buffer = realloc( p_bo->p_buffer, p_bo->i_buffer_size );
1367 p_bo->p_buffer[p_bo->i_buffer] = i;
1373 static void bo_add_16be( bo_t *p_bo, uint16_t i )
1375 bo_add_8( p_bo, ( ( i >> 8) &0xff ) );
1376 bo_add_8( p_bo, i &0xff );
1379 static void bo_add_24be( bo_t *p_bo, uint32_t i )
1381 bo_add_8( p_bo, ( ( i >> 16) &0xff ) );
1382 bo_add_8( p_bo, ( ( i >> 8) &0xff ) );
1383 bo_add_8( p_bo, ( i &0xff ) );
1385 static void bo_add_32be( bo_t *p_bo, uint32_t i )
1387 bo_add_16be( p_bo, ( ( i >> 16) &0xffff ) );
1388 bo_add_16be( p_bo, i &0xffff );
1391 static void bo_fix_32be ( bo_t *p_bo, int i_pos, uint32_t i)
1393 p_bo->p_buffer[i_pos ] = ( i >> 24 )&0xff;
1394 p_bo->p_buffer[i_pos + 1] = ( i >> 16 )&0xff;
1395 p_bo->p_buffer[i_pos + 2] = ( i >> 8 )&0xff;
1396 p_bo->p_buffer[i_pos + 3] = ( i )&0xff;
1399 static void bo_add_64be( bo_t *p_bo, uint64_t i )
1401 bo_add_32be( p_bo, ( ( i >> 32) &0xffffffff ) );
1402 bo_add_32be( p_bo, i &0xffffffff );
1405 static void bo_add_fourcc( bo_t *p_bo, char *fcc )
1407 bo_add_8( p_bo, fcc[0] );
1408 bo_add_8( p_bo, fcc[1] );
1409 bo_add_8( p_bo, fcc[2] );
1410 bo_add_8( p_bo, fcc[3] );
1413 static void bo_add_mem( bo_t *p_bo, int i_size, uint8_t *p_mem )
1417 for( i = 0; i < i_size; i++ )
1419 bo_add_8( p_bo, p_mem[i] );
1423 static void bo_add_descr( bo_t *p_bo, uint8_t tag, uint32_t i_size )
1429 vals[3] = (unsigned char)(i_length & 0x7f);
1431 vals[2] = (unsigned char)((i_length & 0x7f) | 0x80);
1433 vals[1] = (unsigned char)((i_length & 0x7f) | 0x80);
1435 vals[0] = (unsigned char)((i_length & 0x7f) | 0x80);
1437 bo_add_8( p_bo, tag );
1439 if( i_size < 0x00000080 )
1441 bo_add_8( p_bo, vals[3] );
1443 else if( i_size < 0x00004000 )
1445 bo_add_8( p_bo, vals[2] );
1446 bo_add_8( p_bo, vals[3] );
1448 else if( i_size < 0x00200000 )
1450 bo_add_8( p_bo, vals[1] );
1451 bo_add_8( p_bo, vals[2] );
1452 bo_add_8( p_bo, vals[3] );
1454 else if( i_size < 0x10000000 )
1456 bo_add_8( p_bo, vals[0] );
1457 bo_add_8( p_bo, vals[1] );
1458 bo_add_8( p_bo, vals[2] );
1459 bo_add_8( p_bo, vals[3] );
1463 static void bo_add_bo( bo_t *p_bo, bo_t *p_bo2 )
1467 for( i = 0; i < p_bo2->i_buffer; i++ )
1469 bo_add_8( p_bo, p_bo2->p_buffer[i] );
1473 static bo_t * box_new( char *fcc )
1477 if( ( box = malloc( sizeof( bo_t ) ) ) )
1479 bo_init( box, 0, NULL, VLC_TRUE );
1481 bo_add_32be ( box, 0 );
1482 bo_add_fourcc( box, fcc );
1488 static bo_t * box_full_new( char *fcc, uint8_t v, uint32_t f )
1492 if( ( box = malloc( sizeof( bo_t ) ) ) )
1494 bo_init( box, 0, NULL, VLC_TRUE );
1496 bo_add_32be ( box, 0 );
1497 bo_add_fourcc( box, fcc );
1498 bo_add_8 ( box, v );
1499 bo_add_24be ( box, f );
1505 static void box_fix( bo_t *box )
1509 memcpy( &box_tmp, box, sizeof( bo_t ) );
1511 box_tmp.i_buffer = 0;
1512 bo_add_32be( &box_tmp, box->i_buffer );
1515 static void box_free( bo_t *box )
1519 free( box->p_buffer );
1525 static void box_gather ( bo_t *box, bo_t *box2 )
1527 bo_add_bo( box, box2 );
1531 static sout_buffer_t * bo_to_sout( sout_instance_t *p_sout, bo_t *box )
1533 sout_buffer_t *p_buf;
1535 p_buf = sout_BufferNew( p_sout, box->i_buffer );
1536 if( box->i_buffer > 0 )
1538 memcpy( p_buf->p_buffer, box->p_buffer, box->i_buffer );
1541 p_buf->i_size = box->i_buffer;
1546 static void box_send( sout_mux_t *p_mux, bo_t *box )
1548 sout_buffer_t *p_buf;
1550 p_buf = bo_to_sout( p_mux->p_sout, box );
1553 sout_AccessOutWrite( p_mux->p_access, p_buf );
1556 static int64_t get_timestamp()
1558 int64_t i_timestamp = 0;
1561 i_timestamp = time(NULL);
1562 i_timestamp += 2082844800; // MOV/MP4 start date is 1/1/1904
1563 // 208284480 is (((1970 - 1904) * 365) + 17) * 24 * 60 * 60