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Clarify live555 version error
[vlc/asuraparaju-public.git] / modules / mux / mp4.c
blob8af05589ec941cae2c4fd24bee7d339b1cb55896
1 /*****************************************************************************
2 * mp4.c: mp4/mov muxer
3 *****************************************************************************
4 * Copyright (C) 2001, 2002, 2003, 2006 the VideoLAN team
5 * $Id$
6 *
7 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
8 * Gildas Bazin <gbazin at videolan dot org>
9 *
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.
14 *
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.
19 *
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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
23 *****************************************************************************/
24
25 /*****************************************************************************
26 * Preamble
27 *****************************************************************************/
28
29 #ifdef HAVE_CONFIG_H
30 # include "config.h"
31 #endif
32
33 #include <vlc_common.h>
34 #include <vlc_plugin.h>
35 #include <vlc_sout.h>
36 #include <vlc_block.h>
37
38 #include <time.h>
39
40 #include <vlc_iso_lang.h>
41 #include <vlc_meta.h>
42
43 /*****************************************************************************
44 * Module descriptor
45 *****************************************************************************/
46 #define FASTSTART_TEXT N_("Create \"Fast Start\" files")
47 #define FASTSTART_LONGTEXT N_( \
48 "Create \"Fast Start\" files. " \
49 "\"Fast Start\" files are optimized for downloads and allow the user " \
50 "to start previewing the file while it is downloading.")
51
52 static int Open ( vlc_object_t * );
53 static void Close ( vlc_object_t * );
54
55 #define SOUT_CFG_PREFIX "sout-mp4-"
56
57 vlc_module_begin ()
58 set_description( N_("MP4/MOV muxer") )
59 set_category( CAT_SOUT )
60 set_subcategory( SUBCAT_SOUT_MUX )
61 set_shortname( "MP4" )
62
63 add_bool( SOUT_CFG_PREFIX "faststart", true, NULL,
64 FASTSTART_TEXT, FASTSTART_LONGTEXT,
65 true )
66 set_capability( "sout mux", 5 )
67 add_shortcut( "mp4", "mov", "3gp" )
68 set_callbacks( Open, Close )
69 vlc_module_end ()
70
71 /*****************************************************************************
72 * Exported prototypes
73 *****************************************************************************/
74 static const char *const ppsz_sout_options[] = {
75 "faststart", NULL
76 };
77
78 static int Control( sout_mux_t *, int, va_list );
79 static int AddStream( sout_mux_t *, sout_input_t * );
80 static int DelStream( sout_mux_t *, sout_input_t * );
81 static int Mux ( sout_mux_t * );
82
83 /*****************************************************************************
84 * Local prototypes
85 *****************************************************************************/
86 typedef struct
87 {
88 uint64_t i_pos;
89 int i_size;
90
91 mtime_t i_pts_dts;
92 mtime_t i_length;
93 unsigned int i_flags;
94
95 } mp4_entry_t;
96
97 typedef struct
98 {
99 es_format_t fmt;
100 int i_track_id;
101
102 /* index */
103 unsigned int i_entry_count;
104 unsigned int i_entry_max;
105 mp4_entry_t *entry;
106 int64_t i_length_neg;
107
108 /* stats */
109 int64_t i_dts_start;
110 int64_t i_duration;
111
112 /* for later stco fix-up (fast start files) */
113 uint64_t i_stco_pos;
114 bool b_stco64;
115
116 /* for spu */
117 int64_t i_last_dts;
118
119 } mp4_stream_t;
120
121 struct sout_mux_sys_t
122 {
123 bool b_mov;
124 bool b_3gp;
125 bool b_64_ext;
126 bool b_fast_start;
127
128 uint64_t i_mdat_pos;
129 uint64_t i_pos;
130
131 int64_t i_dts_start;
132
133 int i_nb_streams;
134 mp4_stream_t **pp_streams;
135 };
136
137 typedef struct bo_t
138 {
139 bool b_grow;
140
141 int i_buffer_size;
142 int i_buffer;
143 uint8_t *p_buffer;
144
145 } bo_t;
146
147 static void bo_init ( bo_t *, int , uint8_t *, bool );
148 static void bo_add_8 ( bo_t *, uint8_t );
149 static void bo_add_16be ( bo_t *, uint16_t );
150 static void bo_add_24be ( bo_t *, uint32_t );
151 static void bo_add_32be ( bo_t *, uint32_t );
152 static void bo_add_64be ( bo_t *, uint64_t );
153 static void bo_add_fourcc(bo_t *, const char * );
154 static void bo_add_bo ( bo_t *, bo_t * );
155 static void bo_add_mem ( bo_t *, int , uint8_t * );
156 static void bo_add_descr( bo_t *, uint8_t , uint32_t );
157
158 static void bo_fix_32be ( bo_t *, int , uint32_t );
159
160 static bo_t *box_new ( const char *fcc );
161 static bo_t *box_full_new( const char *fcc, uint8_t v, uint32_t f );
162 static void box_fix ( bo_t *box );
163 static void box_free ( bo_t *box );
164 static void box_gather ( bo_t *box, bo_t *box2 );
165
166 static void box_send( sout_mux_t *p_mux, bo_t *box );
167
168 static block_t *bo_to_sout( sout_instance_t *p_sout, bo_t *box );
169
170 static bo_t *GetMoovBox( sout_mux_t *p_mux );
171
172 static block_t *ConvertSUBT( block_t *);
173 static block_t *ConvertAVC1( block_t * );
174
175 /*****************************************************************************
176 * Open:
177 *****************************************************************************/
178 static int Open( vlc_object_t *p_this )
179 {
180 sout_mux_t *p_mux = (sout_mux_t*)p_this;
181 sout_mux_sys_t *p_sys;
182 bo_t *box;
183
184 msg_Dbg( p_mux, "Mp4 muxer opened" );
185 config_ChainParse( p_mux, SOUT_CFG_PREFIX, ppsz_sout_options, p_mux->p_cfg );
186
187 p_mux->pf_control = Control;
188 p_mux->pf_addstream = AddStream;
189 p_mux->pf_delstream = DelStream;
190 p_mux->pf_mux = Mux;
191 p_mux->p_sys = p_sys = malloc( sizeof( sout_mux_sys_t ) );
192 if( !p_sys )
193 return VLC_ENOMEM;
194 p_sys->i_pos = 0;
195 p_sys->i_nb_streams = 0;
196 p_sys->pp_streams = NULL;
197 p_sys->i_mdat_pos = 0;
198 p_sys->b_mov = p_mux->psz_mux && !strcmp( p_mux->psz_mux, "mov" );
199 p_sys->b_3gp = p_mux->psz_mux && !strcmp( p_mux->psz_mux, "3gp" );
200 p_sys->i_dts_start = 0;
201
202
203 if( !p_sys->b_mov )
204 {
205 /* Now add ftyp header */
206 box = box_new( "ftyp" );
207 if( p_sys->b_3gp ) bo_add_fourcc( box, "3gp6" );
208 else bo_add_fourcc( box, "isom" );
209 bo_add_32be ( box, 0 );
210 if( p_sys->b_3gp ) bo_add_fourcc( box, "3gp4" );
211 else bo_add_fourcc( box, "mp41" );
212 bo_add_fourcc( box, "avc1" );
213 bo_add_fourcc( box, "qt " );
214 box_fix( box );
215
216 p_sys->i_pos += box->i_buffer;
217 p_sys->i_mdat_pos = p_sys->i_pos;
218
219 box_send( p_mux, box );
220 }
221
222 /* FIXME FIXME
223 * Quicktime actually doesn't like the 64 bits extensions !!! */
224 p_sys->b_64_ext = false;
225
226 /* Now add mdat header */
227 box = box_new( "mdat" );
228 bo_add_64be ( box, 0 ); // enough to store an extended size
229
230 p_sys->i_pos += box->i_buffer;
231
232 box_send( p_mux, box );
233
234 return VLC_SUCCESS;
235 }
236
237 /*****************************************************************************
238 * Close:
239 *****************************************************************************/
240 static void Close( vlc_object_t * p_this )
241 {
242 sout_mux_t *p_mux = (sout_mux_t*)p_this;
243 sout_mux_sys_t *p_sys = p_mux->p_sys;
244 block_t *p_hdr;
245 bo_t bo, *moov;
246 vlc_value_t val;
247
248 int i_trak;
249 uint64_t i_moov_pos;
250
251 msg_Dbg( p_mux, "Close" );
252
253 /* Update mdat size */
254 bo_init( &bo, 0, NULL, true );
255 if( p_sys->i_pos - p_sys->i_mdat_pos >= (((uint64_t)1)<<32) )
256 {
257 /* Extended size */
258 bo_add_32be ( &bo, 1 );
259 bo_add_fourcc( &bo, "mdat" );
260 bo_add_64be ( &bo, p_sys->i_pos - p_sys->i_mdat_pos );
261 }
262 else
263 {
264 bo_add_32be ( &bo, 8 );
265 bo_add_fourcc( &bo, "wide" );
266 bo_add_32be ( &bo, p_sys->i_pos - p_sys->i_mdat_pos - 8 );
267 bo_add_fourcc( &bo, "mdat" );
268 }
269 p_hdr = bo_to_sout( p_mux->p_sout, &bo );
270 free( bo.p_buffer );
271
272 sout_AccessOutSeek( p_mux->p_access, p_sys->i_mdat_pos );
273 sout_AccessOutWrite( p_mux->p_access, p_hdr );
274
275 /* Create MOOV header */
276 i_moov_pos = p_sys->i_pos;
277 moov = GetMoovBox( p_mux );
278
279 /* Check we need to create "fast start" files */
280 var_Get( p_this, SOUT_CFG_PREFIX "faststart", &val );
281 p_sys->b_fast_start = val.b_bool;
282 while( p_sys->b_fast_start )
283 {
284 /* Move data to the end of the file so we can fit the moov header
285 * at the start */
286 block_t *p_buf;
287 int64_t i_chunk, i_size = p_sys->i_pos - p_sys->i_mdat_pos;
288 int i_moov_size = moov->i_buffer;
289
290 while( i_size > 0 )
291 {
292 i_chunk = __MIN( 32768, i_size );
293 p_buf = block_New( p_mux, i_chunk );
294 sout_AccessOutSeek( p_mux->p_access,
295 p_sys->i_mdat_pos + i_size - i_chunk );
296 if( sout_AccessOutRead( p_mux->p_access, p_buf ) < i_chunk )
297 {
298 msg_Warn( p_this, "read() not supported by access output, "
299 "won't create a fast start file" );
300 p_sys->b_fast_start = false;
301 block_Release( p_buf );
302 break;
303 }
304 sout_AccessOutSeek( p_mux->p_access, p_sys->i_mdat_pos + i_size +
305 i_moov_size - i_chunk );
306 sout_AccessOutWrite( p_mux->p_access, p_buf );
307 i_size -= i_chunk;
308 }
309
310 if( !p_sys->b_fast_start ) break;
311
312 /* Fix-up samples to chunks table in MOOV header */
313 for( i_trak = 0; i_trak < p_sys->i_nb_streams; i_trak++ )
314 {
315 mp4_stream_t *p_stream = p_sys->pp_streams[i_trak];
316 unsigned int i;
317 int i_chunk;
318
319 moov->i_buffer = p_stream->i_stco_pos;
320 for( i_chunk = 0, i = 0; i < p_stream->i_entry_count; i_chunk++ )
321 {
322 if( p_stream->b_stco64 )
323 bo_add_64be( moov, p_stream->entry[i].i_pos + i_moov_size);
324 else
325 bo_add_32be( moov, p_stream->entry[i].i_pos + i_moov_size);
326
327 while( i < p_stream->i_entry_count )
328 {
329 if( i + 1 < p_stream->i_entry_count &&
330 p_stream->entry[i].i_pos + p_stream->entry[i].i_size
331 != p_stream->entry[i + 1].i_pos )
332 {
333 i++;
334 break;
335 }
336
337 i++;
338 }
339 }
340 }
341
342 moov->i_buffer = i_moov_size;
343 i_moov_pos = p_sys->i_mdat_pos;
344 p_sys->b_fast_start = false;
345 }
346
347 /* Write MOOV header */
348 sout_AccessOutSeek( p_mux->p_access, i_moov_pos );
349 box_send( p_mux, moov );
350
351 /* Clean-up */
352 for( i_trak = 0; i_trak < p_sys->i_nb_streams; i_trak++ )
353 {
354 mp4_stream_t *p_stream = p_sys->pp_streams[i_trak];
355
356 es_format_Clean( &p_stream->fmt );
357 free( p_stream->entry );
358 free( p_stream );
359 }
360 if( p_sys->i_nb_streams ) free( p_sys->pp_streams );
361 free( p_sys );
362 }
363
364 /*****************************************************************************
365 * Control:
366 *****************************************************************************/
367 static int Control( sout_mux_t *p_mux, int i_query, va_list args )
368 {
369 VLC_UNUSED(p_mux);
370 bool *pb_bool;
371
372 switch( i_query )
373 {
374 case MUX_CAN_ADD_STREAM_WHILE_MUXING:
375 pb_bool = (bool*)va_arg( args, bool * );
376 *pb_bool = false;
377 return VLC_SUCCESS;
378
379 case MUX_GET_ADD_STREAM_WAIT:
380 pb_bool = (bool*)va_arg( args, bool * );
381 *pb_bool = true;
382 return VLC_SUCCESS;
383
384 case MUX_GET_MIME: /* Not needed, as not streamable */
385 default:
386 return VLC_EGENERIC;
387 }
388 }
389
390 /*****************************************************************************
391 * AddStream:
392 *****************************************************************************/
393 static int AddStream( sout_mux_t *p_mux, sout_input_t *p_input )
394 {
395 sout_mux_sys_t *p_sys = p_mux->p_sys;
396 mp4_stream_t *p_stream;
397
398 switch( p_input->p_fmt->i_codec )
399 {
400 case VLC_CODEC_MP4A:
401 case VLC_CODEC_MP4V:
402 case VLC_CODEC_MPGA:
403 case VLC_CODEC_MPGV:
404 case VLC_CODEC_MJPG:
405 case VLC_CODEC_MJPGB:
406 case VLC_CODEC_SVQ1:
407 case VLC_CODEC_SVQ3:
408 case VLC_CODEC_H263:
409 case VLC_CODEC_H264:
410 case VLC_CODEC_AMR_NB:
411 case VLC_CODEC_AMR_WB:
412 case VLC_CODEC_YV12:
413 case VLC_CODEC_YUYV:
414 break;
415 case VLC_CODEC_SUBT:
416 msg_Warn( p_mux, "subtitle track added like in .mov (even when creating .mp4)" );
417 break;
418 default:
419 msg_Err( p_mux, "unsupported codec %4.4s in mp4",
420 (char*)&p_input->p_fmt->i_codec );
421 return VLC_EGENERIC;
422 }
423
424 p_stream = malloc( sizeof( mp4_stream_t ) );
425 if( !p_stream )
426 return VLC_ENOMEM;
427 es_format_Copy( &p_stream->fmt, p_input->p_fmt );
428 p_stream->i_track_id = p_sys->i_nb_streams + 1;
429 p_stream->i_length_neg = 0;
430 p_stream->i_entry_count = 0;
431 p_stream->i_entry_max = 1000;
432 p_stream->entry =
433 calloc( p_stream->i_entry_max, sizeof( mp4_entry_t ) );
434 p_stream->i_dts_start = 0;
435 p_stream->i_duration = 0;
436
437 p_input->p_sys = p_stream;
438
439 msg_Dbg( p_mux, "adding input" );
440
441 TAB_APPEND( p_sys->i_nb_streams, p_sys->pp_streams, p_stream );
442 return VLC_SUCCESS;
443 }
444
445 /*****************************************************************************
446 * DelStream:
447 *****************************************************************************/
448 static int DelStream( sout_mux_t *p_mux, sout_input_t *p_input )
449 {
450 VLC_UNUSED(p_input);
451 msg_Dbg( p_mux, "removing input" );
452 return VLC_SUCCESS;
453 }
454
455 /*****************************************************************************
456 * Mux:
457 *****************************************************************************/
458 static int Mux( sout_mux_t *p_mux )
459 {
460 sout_mux_sys_t *p_sys = p_mux->p_sys;
461
462 for( ;; )
463 {
464 sout_input_t *p_input;
465 mp4_stream_t *p_stream;
466 block_t *p_data;
467 mtime_t i_dts;
468
469 int i_stream = sout_MuxGetStream( p_mux, 2, &i_dts);
470 if( i_stream < 0 )
471 {
472 return( VLC_SUCCESS );
473 }
474
475 p_input = p_mux->pp_inputs[i_stream];
476 p_stream = (mp4_stream_t*)p_input->p_sys;
477
478 again:
479 p_data = block_FifoGet( p_input->p_fifo );
480 if( p_stream->fmt.i_codec == VLC_CODEC_H264 )
481 {
482 p_data = ConvertAVC1( p_data );
483 }
484 else if( p_stream->fmt.i_codec == VLC_CODEC_SUBT )
485 {
486 p_data = ConvertSUBT( p_data );
487 }
488 if( p_data == NULL ) goto again;
489
490 if( p_stream->fmt.i_cat != SPU_ES )
491 {
492 /* Fix length of the sample */
493 if( block_FifoCount( p_input->p_fifo ) > 0 )
494 {
495 block_t *p_next = block_FifoShow( p_input->p_fifo );
496 int64_t i_diff = p_next->i_dts - p_data->i_dts;
497
498 if( i_diff < INT64_C(1000000 ) ) /* protection */
499 {
500 p_data->i_length = i_diff;
501 }
502 }
503 if( p_data->i_length <= 0 )
504 {
505 msg_Warn( p_mux, "i_length <= 0" );
506 p_stream->i_length_neg += p_data->i_length - 1;
507 p_data->i_length = 1;
508 }
509 else if( p_stream->i_length_neg < 0 )
510 {
511 int64_t i_recover = __MIN( p_data->i_length / 4, - p_stream->i_length_neg );
512
513 p_data->i_length -= i_recover;
514 p_stream->i_length_neg += i_recover;
515 }
516 }
517
518 /* Save starting time */
519 if( p_stream->i_entry_count == 0 )
520 {
521 p_stream->i_dts_start = p_data->i_dts;
522
523 /* Update global dts_start */
524 if( p_sys->i_dts_start <= 0 ||
525 p_stream->i_dts_start < p_sys->i_dts_start )
526 {
527 p_sys->i_dts_start = p_stream->i_dts_start;
528 }
529 }
530
531 if( p_stream->fmt.i_cat == SPU_ES && p_stream->i_entry_count > 0 )
532 {
533 int64_t i_length = p_data->i_dts - p_stream->i_last_dts;
534
535 if( i_length <= 0 )
536 {
537 /* FIXME handle this broken case */
538 i_length = 1;
539 }
540
541 /* Fix last entry */
542 if( p_stream->entry[p_stream->i_entry_count-1].i_length <= 0 )
543 {
544 p_stream->entry[p_stream->i_entry_count-1].i_length = i_length;
545 }
546 }
547
548
549 /* add index entry */
550 p_stream->entry[p_stream->i_entry_count].i_pos = p_sys->i_pos;
551 p_stream->entry[p_stream->i_entry_count].i_size = p_data->i_buffer;
552 p_stream->entry[p_stream->i_entry_count].i_pts_dts=
553 __MAX( p_data->i_pts - p_data->i_dts, 0 );
554 p_stream->entry[p_stream->i_entry_count].i_length = p_data->i_length;
555 p_stream->entry[p_stream->i_entry_count].i_flags = p_data->i_flags;
556
557 p_stream->i_entry_count++;
558 /* XXX: -1 to always have 2 entry for easy adding of empty SPU */
559 if( p_stream->i_entry_count >= p_stream->i_entry_max - 1 )
560 {
561 p_stream->i_entry_max += 1000;
562 p_stream->entry = xrealloc( p_stream->entry,
563 p_stream->i_entry_max * sizeof( mp4_entry_t ) );
564 }
565
566 /* update */
567 p_stream->i_duration = p_stream->i_last_dts - p_stream->i_dts_start + p_data->i_length;
568 p_sys->i_pos += p_data->i_buffer;
569
570 /* Save the DTS */
571 p_stream->i_last_dts = p_data->i_dts;
572
573 /* write data */
574 sout_AccessOutWrite( p_mux->p_access, p_data );
575
576 if( p_stream->fmt.i_cat == SPU_ES )
577 {
578 int64_t i_length = p_stream->entry[p_stream->i_entry_count-1].i_length;
579
580 if( i_length != 0 )
581 {
582 /* TODO */
583 msg_Dbg( p_mux, "writing an empty sub" ) ;
584
585 /* Append a idx entry */
586 p_stream->entry[p_stream->i_entry_count].i_pos = p_sys->i_pos;
587 p_stream->entry[p_stream->i_entry_count].i_size = 3;
588 p_stream->entry[p_stream->i_entry_count].i_pts_dts= 0;
589 p_stream->entry[p_stream->i_entry_count].i_length = 0;
590 p_stream->entry[p_stream->i_entry_count].i_flags = 0;
591
592 /* XXX: No need to grow the entry here */
593 p_stream->i_entry_count++;
594
595 /* Fix last dts */
596 p_stream->i_last_dts += i_length;
597
598 /* Write a " " */
599 p_data = block_New( p_mux, 3 );
600 p_data->p_buffer[0] = 0;
601 p_data->p_buffer[1] = 1;
602 p_data->p_buffer[2] = ' ';
603
604 p_sys->i_pos += p_data->i_buffer;
605
606 sout_AccessOutWrite( p_mux->p_access, p_data );
607 }
608
609 /* Fix duration */
610 p_stream->i_duration = p_stream->i_last_dts - p_stream->i_dts_start;
611 }
612 }
613
614 return( VLC_SUCCESS );
615 }
616
617 /*****************************************************************************
618 *
619 *****************************************************************************/
620 static block_t *ConvertSUBT( block_t *p_block )
621 {
622 p_block = block_Realloc( p_block, 2, p_block->i_buffer );
623
624 /* No trailling '\0' */
625 if( p_block->i_buffer > 2 && p_block->p_buffer[p_block->i_buffer-1] == '\0' )
626 p_block->i_buffer--;
627
628 p_block->p_buffer[0] = ( (p_block->i_buffer - 2) >> 8 )&0xff;
629 p_block->p_buffer[1] = ( (p_block->i_buffer - 2) )&0xff;
630
631 return p_block;
632 }
633
634 static block_t *ConvertAVC1( block_t *p_block )
635 {
636 uint8_t *last = p_block->p_buffer; /* Assume it starts with 0x00000001 */
637 uint8_t *dat = &p_block->p_buffer[4];
638 uint8_t *end = &p_block->p_buffer[p_block->i_buffer];
639
640
641 /* Replace the 4 bytes start code with 4 bytes size,
642 * FIXME are all startcodes 4 bytes ? (I don't think :( */
643 while( dat < end )
644 {
645 int i_size;
646
647 while( dat < end - 4 )
648 {
649 if( dat[0] == 0x00 && dat[1] == 0x00 &&
650 dat[2] == 0x00 && dat[3] == 0x01 )
651 {
652 break;
653 }
654 dat++;
655 }
656 if( dat >= end - 4 )
657 {
658 dat = end;
659 }
660
661 /* Fix size */
662 i_size = dat - &last[4];
663 last[0] = ( i_size >> 24 )&0xff;
664 last[1] = ( i_size >> 16 )&0xff;
665 last[2] = ( i_size >> 8 )&0xff;
666 last[3] = ( i_size )&0xff;
667
668 /* Skip blocks with SPS/PPS */
669 if( (last[4]&0x1f) == 7 || (last[4]&0x1f) == 8 )
670 {
671 ; // FIXME Find a way to skip dat without frelling everything
672 }
673 last = dat;
674 dat += 4;
675 }
676 return p_block;
677 }
678
679 static int GetDescrLength( int i_size )
680 {
681 if( i_size < 0x00000080 )
682 return 2 + i_size;
683 else if( i_size < 0x00004000 )
684 return 3 + i_size;
685 else if( i_size < 0x00200000 )
686 return 4 + i_size;
687 else
688 return 5 + i_size;
689 }
690
691 static bo_t *GetESDS( mp4_stream_t *p_stream )
692 {
693 bo_t *esds;
694 int i_stream_type;
695 int i_object_type_indication;
696 int i_decoder_specific_info_size;
697 unsigned int i;
698 int64_t i_bitrate_avg = 0;
699 int64_t i_bitrate_max = 0;
700
701 /* Compute avg/max bitrate */
702 for( i = 0; i < p_stream->i_entry_count; i++ )
703 {
704 i_bitrate_avg += p_stream->entry[i].i_size;
705 if( p_stream->entry[i].i_length > 0)
706 {
707 int64_t i_bitrate = INT64_C(8000000) * p_stream->entry[i].i_size / p_stream->entry[i].i_length;
708 if( i_bitrate > i_bitrate_max )
709 i_bitrate_max = i_bitrate;
710 }
711 }
712
713 if( p_stream->i_duration > 0 )
714 i_bitrate_avg = INT64_C(8000000) * i_bitrate_avg / p_stream->i_duration;
715 else
716 i_bitrate_avg = 0;
717 if( i_bitrate_max <= 1 )
718 i_bitrate_max = 0x7fffffff;
719
720 /* */
721 if( p_stream->fmt.i_extra > 0 )
722 {
723 i_decoder_specific_info_size =
724 GetDescrLength( p_stream->fmt.i_extra );
725 }
726 else
727 {
728 i_decoder_specific_info_size = 0;
729 }
730
731 esds = box_full_new( "esds", 0, 0 );
732
733 /* ES_Descr */
734 bo_add_descr( esds, 0x03, 3 +
735 GetDescrLength( 13 + i_decoder_specific_info_size ) +
736 GetDescrLength( 1 ) );
737 bo_add_16be( esds, p_stream->i_track_id );
738 bo_add_8 ( esds, 0x1f ); // flags=0|streamPriority=0x1f
739
740 /* DecoderConfigDescr */
741 bo_add_descr( esds, 0x04, 13 + i_decoder_specific_info_size );
742
743 switch( p_stream->fmt.i_codec )
744 {
745 case VLC_CODEC_MP4V:
746 i_object_type_indication = 0x20;
747 break;
748 case VLC_CODEC_MPGV:
749 /* FIXME MPEG-I=0x6b, MPEG-II = 0x60 -> 0x65 */
750 i_object_type_indication = 0x60;
751 break;
752 case VLC_CODEC_MP4A:
753 /* FIXME for mpeg2-aac == 0x66->0x68 */
754 i_object_type_indication = 0x40;
755 break;
756 case VLC_CODEC_MPGA:
757 i_object_type_indication =
758 p_stream->fmt.audio.i_rate < 32000 ? 0x69 : 0x6b;
759 break;
760 default:
761 i_object_type_indication = 0x00;
762 break;
763 }
764 i_stream_type = p_stream->fmt.i_cat == VIDEO_ES ? 0x04 : 0x05;
765
766 bo_add_8 ( esds, i_object_type_indication );
767 bo_add_8 ( esds, ( i_stream_type << 2 ) | 1 );
768 bo_add_24be( esds, 1024 * 1024 ); // bufferSizeDB
769 bo_add_32be( esds, i_bitrate_max ); // maxBitrate
770 bo_add_32be( esds, i_bitrate_avg ); // avgBitrate
771
772 if( p_stream->fmt.i_extra > 0 )
773 {
774 int i;
775
776 /* DecoderSpecificInfo */
777 bo_add_descr( esds, 0x05, p_stream->fmt.i_extra );
778
779 for( i = 0; i < p_stream->fmt.i_extra; i++ )
780 {
781 bo_add_8( esds, ((uint8_t*)p_stream->fmt.p_extra)[i] );
782 }
783 }
784
785 /* SL_Descr mandatory */
786 bo_add_descr( esds, 0x06, 1 );
787 bo_add_8 ( esds, 0x02 ); // sl_predefined
788
789 box_fix( esds );
790
791 return esds;
792 }
793
794 static bo_t *GetWaveTag( mp4_stream_t *p_stream )
795 {
796 bo_t *wave;
797 bo_t *box;
798
799 wave = box_new( "wave" );
800
801 box = box_new( "frma" );
802 bo_add_fourcc( box, "mp4a" );
803 box_fix( box );
804 box_gather( wave, box );
805
806 box = box_new( "mp4a" );
807 bo_add_32be( box, 0 );
808 box_fix( box );
809 box_gather( wave, box );
810
811 box = GetESDS( p_stream );
812 box_fix( box );
813 box_gather( wave, box );
814
815 box = box_new( "srcq" );
816 bo_add_32be( box, 0x40 );
817 box_fix( box );
818 box_gather( wave, box );
819
820 /* wazza ? */
821 bo_add_32be( wave, 8 ); /* new empty box */
822 bo_add_32be( wave, 0 ); /* box label */
823
824 box_fix( wave );
825
826 return wave;
827 }
828
829 static bo_t *GetDamrTag( mp4_stream_t *p_stream )
830 {
831 bo_t *damr;
832
833 damr = box_new( "damr" );
834
835 bo_add_fourcc( damr, "REFC" );
836 bo_add_8( damr, 0 );
837
838 if( p_stream->fmt.i_codec == VLC_CODEC_AMR_NB )
839 bo_add_16be( damr, 0x81ff ); /* Mode set (all modes for AMR_NB) */
840 else
841 bo_add_16be( damr, 0x83ff ); /* Mode set (all modes for AMR_WB) */
842 bo_add_16be( damr, 0x1 ); /* Mode change period (no restriction) */
843
844 box_fix( damr );
845
846 return damr;
847 }
848
849 static bo_t *GetD263Tag( void )
850 {
851 bo_t *d263;
852
853 d263 = box_new( "d263" );
854
855 bo_add_fourcc( d263, "VLC " );
856 bo_add_16be( d263, 0xa );
857 bo_add_8( d263, 0 );
858
859 box_fix( d263 );
860
861 return d263;
862 }
863
864 static bo_t *GetAvcCTag( mp4_stream_t *p_stream )
865 {
866 bo_t *avcC = NULL;
867 uint8_t *p_sps = NULL;
868 uint8_t *p_pps = NULL;
869 int i_sps_size = 0;
870 int i_pps_size = 0;
871
872 if( p_stream->fmt.i_extra > 0 )
873 {
874 /* FIXME: take into account multiple sps/pps */
875 uint8_t *p_buffer = p_stream->fmt.p_extra;
876 int i_buffer = p_stream->fmt.i_extra;
877
878 while( i_buffer > 3 )
879 {
880 /* seek startcode */
881 while( p_buffer[0] != 0 || p_buffer[1] != 0 ||
882 p_buffer[2] != 1 )
883 {
884 i_buffer--;
885 p_buffer++;
886 }
887 const int i_nal_type = p_buffer[3]&0x1f;
888 int i_offset = 1;
889 int i_size = 0;
890 int i_startcode = 0;
891
892
893 for( i_offset = 1; i_offset+2 < i_buffer ; i_offset++)
894 {
895 if( p_buffer[i_offset] == 0 && p_buffer[i_offset+1] == 0 &&
896 p_buffer[i_offset+2] == 1 )
897 {
898 /* we found another startcode */
899 i_startcode = i_offset;
900 while( p_buffer[i_startcode-1] == 0 && i_startcode > 0 )
901 i_startcode--;
902 break;
903 }
904 }
905 i_size = i_startcode ? i_startcode : i_buffer;
906
907 if( i_nal_type == 7 )
908 {
909 p_sps = &p_buffer[3];
910 i_sps_size = i_size - 3;
911 }
912 if( i_nal_type == 8 )
913 {
914 p_pps = &p_buffer[3];
915 i_pps_size = i_size - 3;
916 }
917 i_buffer -= i_size;
918 p_buffer += i_size;
919 }
920 }
921
922 /* FIXME use better value */
923 avcC = box_new( "avcC" );
924 bo_add_8( avcC, 1 ); /* configuration version */
925 bo_add_8( avcC, i_sps_size ? p_sps[1] : 77 );
926 bo_add_8( avcC, i_sps_size ? p_sps[2] : 64 );
927 bo_add_8( avcC, i_sps_size ? p_sps[3] : 30 ); /* level, 5.1 */
928 bo_add_8( avcC, 0xff ); /* 0b11111100 | lengthsize = 0x11 */
929
930 bo_add_8( avcC, 0xe0 | (i_sps_size > 0 ? 1 : 0) ); /* 0b11100000 | sps_count */
931 if( i_sps_size > 0 )
932 {
933 bo_add_16be( avcC, i_sps_size );
934 bo_add_mem( avcC, i_sps_size, p_sps );
935 }
936
937 bo_add_8( avcC, (i_pps_size > 0 ? 1 : 0) ); /* pps_count */
938 if( i_pps_size > 0 )
939 {
940 bo_add_16be( avcC, i_pps_size );
941 bo_add_mem( avcC, i_pps_size, p_pps );
942 }
943 box_fix( avcC );
944
945 return avcC;
946 }
947
948 /* TODO: No idea about these values */
949 static bo_t *GetSVQ3Tag( mp4_stream_t *p_stream )
950 {
951 bo_t *smi = box_new( "SMI " );
952
953 if( p_stream->fmt.i_extra > 0x4e )
954 {
955 uint8_t *p_end = &((uint8_t*)p_stream->fmt.p_extra)[p_stream->fmt.i_extra];
956 uint8_t *p = &((uint8_t*)p_stream->fmt.p_extra)[0x46];
957
958 while( p + 8 < p_end )
959 {
960 int i_size = GetDWBE( p );
961 if( i_size <= 1 )
962 {
963 /* FIXME handle 1 as long size */
964 break;
965 }
966 if( !strncmp( (const char *)&p[4], "SMI ", 4 ) )
967 {
968 bo_add_mem( smi, p_end - p - 8, &p[8] );
969 return smi;
970 }
971 p += i_size;
972 }
973 }
974
975 /* Create a dummy one in fallback */
976 bo_add_fourcc( smi, "SEQH" );
977 bo_add_32be( smi, 0x5 );
978 bo_add_32be( smi, 0xe2c0211d );
979 bo_add_8( smi, 0xc0 );
980 box_fix( smi );
981
982 return smi;
983 }
984
985 static bo_t *GetUdtaTag( sout_mux_t *p_mux )
986 {
987 sout_mux_sys_t *p_sys = p_mux->p_sys;
988 bo_t *udta = box_new( "udta" );
989 vlc_meta_t *p_meta = p_mux->p_sout->p_meta;
990 int i_track;
991
992 /* Requirements */
993 for( i_track = 0; i_track < p_sys->i_nb_streams; i_track++ )
994 {
995 mp4_stream_t *p_stream = p_sys->pp_streams[i_track];
996
997 if( p_stream->fmt.i_codec == VLC_CODEC_MP4V ||
998 p_stream->fmt.i_codec == VLC_CODEC_MP4A )
999 {
1000 bo_t *box = box_new( "\251req" );
1001 /* String length */
1002 bo_add_16be( box, sizeof("QuickTime 6.0 or greater") - 1);
1003 bo_add_16be( box, 0 );
1004 bo_add_mem( box, sizeof("QuickTime 6.0 or greater") - 1,
1005 (uint8_t *)"QuickTime 6.0 or greater" );
1006 box_fix( box );
1007 box_gather( udta, box );
1008 break;
1009 }
1010 }
1011
1012 /* Encoder */
1013 {
1014 bo_t *box = box_new( "\251enc" );
1015 /* String length */
1016 bo_add_16be( box, sizeof(PACKAGE_STRING " stream output") - 1);
1017 bo_add_16be( box, 0 );
1018 bo_add_mem( box, sizeof(PACKAGE_STRING " stream output") - 1,
1019 (uint8_t*)PACKAGE_STRING " stream output" );
1020 box_fix( box );
1021 box_gather( udta, box );
1022 }
1023
1024 /* Misc atoms */
1025 if( p_meta )
1026 {
1027 #define ADD_META_BOX( type, box_string ) { \
1028 bo_t *box = NULL; \
1029 if( vlc_meta_Get( p_meta, vlc_meta_##type ) ) box = box_new( "\251" box_string ); \
1030 if( box ) \
1031 { \
1032 bo_add_16be( box, strlen( vlc_meta_Get( p_meta, vlc_meta_##type ) )); \
1033 bo_add_16be( box, 0 ); \
1034 bo_add_mem( box, strlen( vlc_meta_Get( p_meta, vlc_meta_##type ) ), \
1035 (uint8_t*)(vlc_meta_Get( p_meta, vlc_meta_##type ) ) ); \
1036 box_fix( box ); \
1037 box_gather( udta, box ); \
1038 } }
1039
1040 ADD_META_BOX( Title, "nam" );
1041 ADD_META_BOX( Artist, "ART" );
1042 ADD_META_BOX( Genre, "gen" );
1043 ADD_META_BOX( Copyright, "cpy" );
1044 ADD_META_BOX( Description, "des" );
1045 ADD_META_BOX( Date, "day" );
1046 ADD_META_BOX( URL, "url" );
1047 #undef ADD_META_BOX
1048 }
1049
1050 box_fix( udta );
1051 return udta;
1052 }
1053
1054 static bo_t *GetSounBox( sout_mux_t *p_mux, mp4_stream_t *p_stream )
1055 {
1056 sout_mux_sys_t *p_sys = p_mux->p_sys;
1057 bool b_descr = false;
1058 bo_t *soun;
1059 char fcc[4] = " ";
1060 int i;
1061
1062 switch( p_stream->fmt.i_codec )
1063 {
1064 case VLC_CODEC_MP4A:
1065 memcpy( fcc, "mp4a", 4 );
1066 b_descr = true;
1067 break;
1068
1069 case VLC_CODEC_AMR_NB:
1070 case VLC_CODEC_AMR_WB:
1071 memcpy( fcc, (char*)&p_stream->fmt.i_codec, 4 );
1072 b_descr = true;
1073 break;
1074
1075 case VLC_CODEC_MPGA:
1076 if( p_sys->b_mov )
1077 memcpy( fcc, ".mp3", 4 );
1078 else
1079 {
1080 memcpy( fcc, "mp4a", 4 );
1081 b_descr = true;
1082 }
1083 break;
1084
1085 default:
1086 memcpy( fcc, (char*)&p_stream->fmt.i_codec, 4 );
1087 break;
1088 }
1089
1090 soun = box_new( fcc );
1091 for( i = 0; i < 6; i++ )
1092 {
1093 bo_add_8( soun, 0 ); // reserved;
1094 }
1095 bo_add_16be( soun, 1 ); // data-reference-index
1096
1097 /* SoundDescription */
1098 if( p_sys->b_mov &&
1099 p_stream->fmt.i_codec == VLC_CODEC_MP4A )
1100 {
1101 bo_add_16be( soun, 1 ); // version 1;
1102 }
1103 else
1104 {
1105 bo_add_16be( soun, 0 ); // version 0;
1106 }
1107 bo_add_16be( soun, 0 ); // revision level (0)
1108 bo_add_32be( soun, 0 ); // vendor
1109 // channel-count
1110 bo_add_16be( soun, p_stream->fmt.audio.i_channels );
1111 // sample size
1112 bo_add_16be( soun, p_stream->fmt.audio.i_bitspersample ?
1113 p_stream->fmt.audio.i_bitspersample : 16 );
1114 bo_add_16be( soun, -2 ); // compression id
1115 bo_add_16be( soun, 0 ); // packet size (0)
1116 bo_add_16be( soun, p_stream->fmt.audio.i_rate ); // sampleratehi
1117 bo_add_16be( soun, 0 ); // sampleratelo
1118
1119 /* Extended data for SoundDescription V1 */
1120 if( p_sys->b_mov &&
1121 p_stream->fmt.i_codec == VLC_CODEC_MP4A )
1122 {
1123 /* samples per packet */
1124 bo_add_32be( soun, p_stream->fmt.audio.i_frame_length );
1125 bo_add_32be( soun, 1536 ); /* bytes per packet */
1126 bo_add_32be( soun, 2 ); /* bytes per frame */
1127 /* bytes per sample */
1128 bo_add_32be( soun, 2 /*p_stream->fmt.audio.i_bitspersample/8 */);
1129 }
1130
1131 /* Add an ES Descriptor */
1132 if( b_descr )
1133 {
1134 bo_t *box;
1135
1136 if( p_sys->b_mov &&
1137 p_stream->fmt.i_codec == VLC_CODEC_MP4A )
1138 {
1139 box = GetWaveTag( p_stream );
1140 }
1141 else if( p_stream->fmt.i_codec == VLC_CODEC_AMR_NB )
1142 {
1143 box = GetDamrTag( p_stream );
1144 }
1145 else
1146 {
1147 box = GetESDS( p_stream );
1148 }
1149 box_fix( box );
1150 box_gather( soun, box );
1151 }
1152
1153 box_fix( soun );
1154
1155 return soun;
1156 }
1157
1158 static bo_t *GetVideBox( mp4_stream_t *p_stream )
1159 {
1160
1161 bo_t *vide;
1162 char fcc[4] = " ";
1163 int i;
1164
1165 switch( p_stream->fmt.i_codec )
1166 {
1167 case VLC_CODEC_MP4V:
1168 case VLC_CODEC_MPGV:
1169 memcpy( fcc, "mp4v", 4 );
1170 break;
1171
1172 case VLC_CODEC_MJPG:
1173 memcpy( fcc, "mjpa", 4 );
1174 break;
1175
1176 case VLC_CODEC_SVQ1:
1177 memcpy( fcc, "SVQ1", 4 );
1178 break;
1179
1180 case VLC_CODEC_SVQ3:
1181 memcpy( fcc, "SVQ3", 4 );
1182 break;
1183
1184 case VLC_CODEC_H263:
1185 memcpy( fcc, "s263", 4 );
1186 break;
1187
1188 case VLC_CODEC_H264:
1189 memcpy( fcc, "avc1", 4 );
1190 break;
1191
1192 case VLC_CODEC_YV12:
1193 memcpy( fcc, "yv12", 4 );
1194 break;
1195
1196 case VLC_CODEC_YUYV:
1197 memcpy( fcc, "yuy2", 4 );
1198 break;
1199
1200 default:
1201 memcpy( fcc, (char*)&p_stream->fmt.i_codec, 4 );
1202 break;
1203 }
1204
1205 vide = box_new( fcc );
1206 for( i = 0; i < 6; i++ )
1207 {
1208 bo_add_8( vide, 0 ); // reserved;
1209 }
1210 bo_add_16be( vide, 1 ); // data-reference-index
1211
1212 bo_add_16be( vide, 0 ); // predefined;
1213 bo_add_16be( vide, 0 ); // reserved;
1214 for( i = 0; i < 3; i++ )
1215 {
1216 bo_add_32be( vide, 0 ); // predefined;
1217 }
1218
1219 bo_add_16be( vide, p_stream->fmt.video.i_width ); // i_width
1220 bo_add_16be( vide, p_stream->fmt.video.i_height ); // i_height
1221
1222 bo_add_32be( vide, 0x00480000 ); // h 72dpi
1223 bo_add_32be( vide, 0x00480000 ); // v 72dpi
1224
1225 bo_add_32be( vide, 0 ); // data size, always 0
1226 bo_add_16be( vide, 1 ); // frames count per sample
1227
1228 // compressor name;
1229 for( i = 0; i < 32; i++ )
1230 {
1231 bo_add_8( vide, 0 );
1232 }
1233
1234 bo_add_16be( vide, 0x18 ); // depth
1235 bo_add_16be( vide, 0xffff ); // predefined
1236
1237 /* add an ES Descriptor */
1238 switch( p_stream->fmt.i_codec )
1239 {
1240 case VLC_CODEC_MP4V:
1241 case VLC_CODEC_MPGV:
1242 {
1243 bo_t *esds = GetESDS( p_stream );
1244
1245 box_fix( esds );
1246 box_gather( vide, esds );
1247 }
1248 break;
1249
1250 case VLC_CODEC_H263:
1251 {
1252 bo_t *d263 = GetD263Tag();
1253
1254 box_fix( d263 );
1255 box_gather( vide, d263 );
1256 }
1257 break;
1258
1259 case VLC_CODEC_SVQ3:
1260 {
1261 bo_t *esds = GetSVQ3Tag( p_stream );
1262
1263 box_fix( esds );
1264 box_gather( vide, esds );
1265 }
1266 break;
1267
1268 case VLC_CODEC_H264:
1269 box_gather( vide, GetAvcCTag( p_stream ) );
1270 break;
1271
1272 default:
1273 break;
1274 }
1275
1276 box_fix( vide );
1277
1278 return vide;
1279 }
1280
1281 static bo_t *GetTextBox( void )
1282 {
1283
1284 bo_t *text = box_new( "text" );
1285 int i;
1286
1287 for( i = 0; i < 6; i++ )
1288 {
1289 bo_add_8( text, 0 ); // reserved;
1290 }
1291 bo_add_16be( text, 1 ); // data-reference-index
1292
1293 bo_add_32be( text, 0 ); // display flags
1294 bo_add_32be( text, 0 ); // justification
1295 for( i = 0; i < 3; i++ )
1296 {
1297 bo_add_16be( text, 0 ); // back ground color
1298 }
1299
1300 bo_add_16be( text, 0 ); // box text
1301 bo_add_16be( text, 0 ); // box text
1302 bo_add_16be( text, 0 ); // box text
1303 bo_add_16be( text, 0 ); // box text
1304
1305 bo_add_64be( text, 0 ); // reserved
1306 for( i = 0; i < 3; i++ )
1307 {
1308 bo_add_16be( text, 0xff ); // foreground color
1309 }
1310
1311 bo_add_8 ( text, 9 );
1312 bo_add_mem( text, 9, (uint8_t*)"Helvetica" );
1313
1314 box_fix( text );
1315
1316 return text;
1317 }
1318
1319 static bo_t *GetStblBox( sout_mux_t *p_mux, mp4_stream_t *p_stream )
1320 {
1321 sout_mux_sys_t *p_sys = p_mux->p_sys;
1322 unsigned int i_chunk, i_stsc_last_val, i_stsc_entries, i, i_index;
1323 bo_t *stbl, *stsd, *stts, *stco, *stsc, *stsz, *stss;
1324 uint32_t i_timescale;
1325 int64_t i_dts, i_dts_q;
1326
1327 stbl = box_new( "stbl" );
1328
1329 /* sample description */
1330 stsd = box_full_new( "stsd", 0, 0 );
1331 bo_add_32be( stsd, 1 );
1332 if( p_stream->fmt.i_cat == AUDIO_ES )
1333 {
1334 bo_t *soun = GetSounBox( p_mux, p_stream );
1335 box_gather( stsd, soun );
1336 }
1337 else if( p_stream->fmt.i_cat == VIDEO_ES )
1338 {
1339 bo_t *vide = GetVideBox( p_stream );
1340 box_gather( stsd, vide );
1341 }
1342 else if( p_stream->fmt.i_cat == SPU_ES )
1343 {
1344 box_gather( stsd, GetTextBox() );
1345 }
1346 box_fix( stsd );
1347
1348 /* chunk offset table */
1349 if( p_sys->i_pos >= (((uint64_t)0x1) << 32) )
1350 {
1351 /* 64 bits version */
1352 p_stream->b_stco64 = true;
1353 stco = box_full_new( "co64", 0, 0 );
1354 }
1355 else
1356 {
1357 /* 32 bits version */
1358 p_stream->b_stco64 = false;
1359 stco = box_full_new( "stco", 0, 0 );
1360 }
1361 bo_add_32be( stco, 0 ); // entry-count (fixed latter)
1362
1363 /* sample to chunk table */
1364 stsc = box_full_new( "stsc", 0, 0 );
1365 bo_add_32be( stsc, 0 ); // entry-count (fixed latter)
1366
1367 for( i_chunk = 0, i_stsc_last_val = 0, i_stsc_entries = 0, i = 0;
1368 i < p_stream->i_entry_count; i_chunk++ )
1369 {
1370 int i_first = i;
1371
1372 if( p_stream->b_stco64 )
1373 bo_add_64be( stco, p_stream->entry[i].i_pos );
1374 else
1375 bo_add_32be( stco, p_stream->entry[i].i_pos );
1376
1377 while( i < p_stream->i_entry_count )
1378 {
1379 if( i + 1 < p_stream->i_entry_count &&
1380 p_stream->entry[i].i_pos + p_stream->entry[i].i_size
1381 != p_stream->entry[i + 1].i_pos )
1382 {
1383 i++;
1384 break;
1385 }
1386
1387 i++;
1388 }
1389
1390 /* Add entry to the stsc table */
1391 if( i_stsc_last_val != i - i_first )
1392 {
1393 bo_add_32be( stsc, 1 + i_chunk ); // first-chunk
1394 bo_add_32be( stsc, i - i_first ) ; // samples-per-chunk
1395 bo_add_32be( stsc, 1 ); // sample-descr-index
1396 i_stsc_last_val = i - i_first;
1397 i_stsc_entries++;
1398 }
1399 }
1400
1401 /* Fix stco entry count */
1402 bo_fix_32be( stco, 12, i_chunk );
1403 msg_Dbg( p_mux, "created %d chunks (stco)", i_chunk );
1404 box_fix( stco );
1405
1406 /* Fix stsc entry count */
1407 bo_fix_32be( stsc, 12, i_stsc_entries );
1408 box_fix( stsc );
1409
1410 /* add stts */
1411 stts = box_full_new( "stts", 0, 0 );
1412 bo_add_32be( stts, 0 ); // entry-count (fixed latter)
1413
1414 if( p_stream->fmt.i_cat == AUDIO_ES )
1415 i_timescale = p_stream->fmt.audio.i_rate;
1416 else
1417 i_timescale = 1001;
1418
1419 /* first, create quantified length */
1420 for( i = 0, i_dts = 0, i_dts_q = 0; i < p_stream->i_entry_count; i++ )
1421 {
1422 int64_t i_dts_deq = i_dts_q * INT64_C(1000000) / (int64_t)i_timescale;
1423 int64_t i_delta = p_stream->entry[i].i_length + i_dts - i_dts_deq;
1424
1425 i_dts += p_stream->entry[i].i_length;
1426
1427 p_stream->entry[i].i_length =
1428 i_delta * (int64_t)i_timescale / INT64_C(1000000);
1429
1430 i_dts_q += p_stream->entry[i].i_length;
1431 }
1432 /* then write encoded table */
1433 for( i = 0, i_index = 0; i < p_stream->i_entry_count; i_index++)
1434 {
1435 int i_first = i;
1436 int64_t i_delta = p_stream->entry[i].i_length;
1437
1438 while( i < p_stream->i_entry_count )
1439 {
1440 i++;
1441 if( i >= p_stream->i_entry_count ||
1442 p_stream->entry[i].i_length != i_delta )
1443 {
1444 break;
1445 }
1446 }
1447
1448 bo_add_32be( stts, i - i_first ); // sample-count
1449 bo_add_32be( stts, i_delta ); // sample-delta
1450 }
1451 bo_fix_32be( stts, 12, i_index );
1452 box_fix( stts );
1453
1454 /* FIXME add ctts ?? FIXME */
1455
1456 stsz = box_full_new( "stsz", 0, 0 );
1457 bo_add_32be( stsz, 0 ); // sample-size
1458 bo_add_32be( stsz, p_stream->i_entry_count ); // sample-count
1459 for( i = 0; i < p_stream->i_entry_count; i++ )
1460 {
1461 bo_add_32be( stsz, p_stream->entry[i].i_size ); // sample-size
1462 }
1463 box_fix( stsz );
1464
1465 /* create stss table */
1466 stss = NULL;
1467 for( i = 0, i_index = 0; i < p_stream->i_entry_count; i++ )
1468 {
1469 if( p_stream->entry[i].i_flags & BLOCK_FLAG_TYPE_I )
1470 {
1471 if( stss == NULL )
1472 {
1473 stss = box_full_new( "stss", 0, 0 );
1474 bo_add_32be( stss, 0 ); /* fixed later */
1475 }
1476 bo_add_32be( stss, 1 + i );
1477 i_index++;
1478 }
1479 }
1480 if( stss )
1481 {
1482 bo_fix_32be( stss, 12, i_index );
1483 box_fix( stss );
1484 }
1485
1486 /* Now gather all boxes into stbl */
1487 box_gather( stbl, stsd );
1488 box_gather( stbl, stts );
1489 if( stss )
1490 {
1491 box_gather( stbl, stss );
1492 }
1493 box_gather( stbl, stsc );
1494 box_gather( stbl, stsz );
1495 p_stream->i_stco_pos = stbl->i_buffer + 16;
1496 box_gather( stbl, stco );
1497
1498 /* finish stbl */
1499 box_fix( stbl );
1500
1501 return stbl;
1502 }
1503
1504 static int64_t get_timestamp(void);
1505
1506 static const uint32_t mvhd_matrix[9] =
1507 { 0x10000, 0, 0, 0, 0x10000, 0, 0, 0, 0x40000000 };
1508
1509 static bo_t *GetMoovBox( sout_mux_t *p_mux )
1510 {
1511 sout_mux_sys_t *p_sys = p_mux->p_sys;
1512
1513 bo_t *moov, *mvhd;
1514 int i_trak, i;
1515
1516 uint32_t i_movie_timescale = 90000;
1517 int64_t i_movie_duration = 0;
1518 int64_t i_timestamp = get_timestamp();
1519
1520 moov = box_new( "moov" );
1521
1522 /* Create general info */
1523 for( i_trak = 0; i_trak < p_sys->i_nb_streams; i_trak++ )
1524 {
1525 mp4_stream_t *p_stream = p_sys->pp_streams[i_trak];
1526 i_movie_duration = __MAX( i_movie_duration, p_stream->i_duration );
1527 }
1528 msg_Dbg( p_mux, "movie duration %ds",
1529 (uint32_t)( i_movie_duration / (mtime_t)1000000 ) );
1530
1531 i_movie_duration = i_movie_duration * i_movie_timescale / 1000000;
1532
1533 /* *** add /moov/mvhd *** */
1534 if( !p_sys->b_64_ext )
1535 {
1536 mvhd = box_full_new( "mvhd", 0, 0 );
1537 bo_add_32be( mvhd, i_timestamp ); // creation time
1538 bo_add_32be( mvhd, i_timestamp ); // modification time
1539 bo_add_32be( mvhd, i_movie_timescale); // timescale
1540 bo_add_32be( mvhd, i_movie_duration ); // duration
1541 }
1542 else
1543 {
1544 mvhd = box_full_new( "mvhd", 1, 0 );
1545 bo_add_64be( mvhd, i_timestamp ); // creation time
1546 bo_add_64be( mvhd, i_timestamp ); // modification time
1547 bo_add_32be( mvhd, i_movie_timescale); // timescale
1548 bo_add_64be( mvhd, i_movie_duration ); // duration
1549 }
1550 bo_add_32be( mvhd, 0x10000 ); // rate
1551 bo_add_16be( mvhd, 0x100 ); // volume
1552 bo_add_16be( mvhd, 0 ); // reserved
1553 for( i = 0; i < 2; i++ )
1554 {
1555 bo_add_32be( mvhd, 0 ); // reserved
1556 }
1557 for( i = 0; i < 9; i++ )
1558 {
1559 bo_add_32be( mvhd, mvhd_matrix[i] );// matrix
1560 }
1561 for( i = 0; i < 6; i++ )
1562 {
1563 bo_add_32be( mvhd, 0 ); // pre-defined
1564 }
1565
1566 /* Next available track id */
1567 bo_add_32be( mvhd, p_sys->i_nb_streams + 1 ); // next-track-id
1568
1569 box_fix( mvhd );
1570 box_gather( moov, mvhd );
1571
1572 for( i_trak = 0; i_trak < p_sys->i_nb_streams; i_trak++ )
1573 {
1574 mp4_stream_t *p_stream;
1575 uint32_t i_timescale;
1576
1577 bo_t *trak, *tkhd, *edts, *elst, *mdia, *mdhd, *hdlr;
1578 bo_t *minf, *dinf, *dref, *url, *stbl;
1579
1580 p_stream = p_sys->pp_streams[i_trak];
1581
1582 if( p_stream->fmt.i_cat == AUDIO_ES )
1583 i_timescale = p_stream->fmt.audio.i_rate;
1584 else
1585 i_timescale = 1001;
1586
1587 /* *** add /moov/trak *** */
1588 trak = box_new( "trak" );
1589
1590 /* *** add /moov/trak/tkhd *** */
1591 if( !p_sys->b_64_ext )
1592 {
1593 if( p_sys->b_mov )
1594 tkhd = box_full_new( "tkhd", 0, 0x0f );
1595 else
1596 tkhd = box_full_new( "tkhd", 0, 1 );
1597
1598 bo_add_32be( tkhd, i_timestamp ); // creation time
1599 bo_add_32be( tkhd, i_timestamp ); // modification time
1600 bo_add_32be( tkhd, p_stream->i_track_id );
1601 bo_add_32be( tkhd, 0 ); // reserved 0
1602 bo_add_32be( tkhd, p_stream->i_duration *
1603 (int64_t)i_movie_timescale /
1604 (mtime_t)1000000 ); // duration
1605 }
1606 else
1607 {
1608 if( p_sys->b_mov )
1609 tkhd = box_full_new( "tkhd", 1, 0x0f );
1610 else
1611 tkhd = box_full_new( "tkhd", 1, 1 );
1612
1613 bo_add_64be( tkhd, i_timestamp ); // creation time
1614 bo_add_64be( tkhd, i_timestamp ); // modification time
1615 bo_add_32be( tkhd, p_stream->i_track_id );
1616 bo_add_32be( tkhd, 0 ); // reserved 0
1617 bo_add_64be( tkhd, p_stream->i_duration *
1618 (int64_t)i_movie_timescale /
1619 (mtime_t)1000000 ); // duration
1620 }
1621
1622 for( i = 0; i < 2; i++ )
1623 {
1624 bo_add_32be( tkhd, 0 ); // reserved
1625 }
1626 bo_add_16be( tkhd, 0 ); // layer
1627 bo_add_16be( tkhd, 0 ); // pre-defined
1628 // volume
1629 bo_add_16be( tkhd, p_stream->fmt.i_cat == AUDIO_ES ? 0x100 : 0 );
1630 bo_add_16be( tkhd, 0 ); // reserved
1631 for( i = 0; i < 9; i++ )
1632 {
1633 bo_add_32be( tkhd, mvhd_matrix[i] ); // matrix
1634 }
1635 if( p_stream->fmt.i_cat == AUDIO_ES )
1636 {
1637 bo_add_32be( tkhd, 0 ); // width (presentation)
1638 bo_add_32be( tkhd, 0 ); // height(presentation)
1639 }
1640 else if( p_stream->fmt.i_cat == VIDEO_ES )
1641 {
1642 int i_width = p_stream->fmt.video.i_width << 16;
1643 if( p_stream->fmt.video.i_sar_num > 0 &&
1644 p_stream->fmt.video.i_sar_den > 0 )
1645 {
1646 i_width = (int64_t)p_stream->fmt.video.i_sar_num *
1647 ((int64_t)p_stream->fmt.video.i_width << 16) /
1648 p_stream->fmt.video.i_sar_den;
1649 }
1650 // width (presentation)
1651 bo_add_32be( tkhd, i_width );
1652 // height(presentation)
1653 bo_add_32be( tkhd, p_stream->fmt.video.i_height << 16 );
1654 }
1655 else
1656 {
1657 int i_width = 320 << 16;
1658 int i_height = 200;
1659 int i;
1660 for( i = 0; i < p_sys->i_nb_streams; i++ )
1661 {
1662 mp4_stream_t *tk = p_sys->pp_streams[i];
1663 if( tk->fmt.i_cat == VIDEO_ES )
1664 {
1665 if( tk->fmt.video.i_sar_num > 0 &&
1666 tk->fmt.video.i_sar_den > 0 )
1667 i_width = (int64_t)tk->fmt.video.i_sar_num *
1668 ((int64_t)tk->fmt.video.i_width << 16) /
1669 tk->fmt.video.i_sar_den;
1670 else
1671 i_width = tk->fmt.video.i_width << 16;
1672 i_height = tk->fmt.video.i_height;
1673 break;
1674 }
1675 }
1676 bo_add_32be( tkhd, i_width ); // width (presentation)
1677 bo_add_32be( tkhd, i_height << 16 ); // height(presentation)
1678 }
1679
1680 box_fix( tkhd );
1681 box_gather( trak, tkhd );
1682
1683 /* *** add /moov/trak/edts and elst */
1684 edts = box_new( "edts" );
1685 elst = box_full_new( "elst", p_sys->b_64_ext ? 1 : 0, 0 );
1686 if( p_stream->i_dts_start > p_sys->i_dts_start )
1687 {
1688 bo_add_32be( elst, 2 );
1689
1690 if( p_sys->b_64_ext )
1691 {
1692 bo_add_64be( elst, (p_stream->i_dts_start-p_sys->i_dts_start) *
1693 i_movie_timescale / INT64_C(1000000) );
1694 bo_add_64be( elst, -1 );
1695 }
1696 else
1697 {
1698 bo_add_32be( elst, (p_stream->i_dts_start-p_sys->i_dts_start) *
1699 i_movie_timescale / INT64_C(1000000) );
1700 bo_add_32be( elst, -1 );
1701 }
1702 bo_add_16be( elst, 1 );
1703 bo_add_16be( elst, 0 );
1704 }
1705 else
1706 {
1707 bo_add_32be( elst, 1 );
1708 }
1709 if( p_sys->b_64_ext )
1710 {
1711 bo_add_64be( elst, p_stream->i_duration *
1712 i_movie_timescale / INT64_C(1000000) );
1713 bo_add_64be( elst, 0 );
1714 }
1715 else
1716 {
1717 bo_add_32be( elst, p_stream->i_duration *
1718 i_movie_timescale / INT64_C(1000000) );
1719 bo_add_32be( elst, 0 );
1720 }
1721 bo_add_16be( elst, 1 );
1722 bo_add_16be( elst, 0 );
1723
1724 box_fix( elst );
1725 box_gather( edts, elst );
1726 box_fix( edts );
1727 box_gather( trak, edts );
1728
1729 /* *** add /moov/trak/mdia *** */
1730 mdia = box_new( "mdia" );
1731
1732 /* media header */
1733 if( !p_sys->b_64_ext )
1734 {
1735 mdhd = box_full_new( "mdhd", 0, 0 );
1736 bo_add_32be( mdhd, i_timestamp ); // creation time
1737 bo_add_32be( mdhd, i_timestamp ); // modification time
1738 bo_add_32be( mdhd, i_timescale); // timescale
1739 bo_add_32be( mdhd, p_stream->i_duration * (int64_t)i_timescale /
1740 (mtime_t)1000000 ); // duration
1741 }
1742 else
1743 {
1744 mdhd = box_full_new( "mdhd", 1, 0 );
1745 bo_add_64be( mdhd, i_timestamp ); // creation time
1746 bo_add_64be( mdhd, i_timestamp ); // modification time
1747 bo_add_32be( mdhd, i_timescale); // timescale
1748 bo_add_64be( mdhd, p_stream->i_duration * (int64_t)i_timescale /
1749 (mtime_t)1000000 ); // duration
1750 }
1751
1752 if( p_stream->fmt.psz_language )
1753 {
1754 char *psz = p_stream->fmt.psz_language;
1755 const iso639_lang_t *pl = NULL;
1756 uint16_t lang = 0x0;
1757
1758 if( strlen( psz ) == 2 )
1759 {
1760 pl = GetLang_1( psz );
1761 }
1762 else if( strlen( psz ) == 3 )
1763 {
1764 pl = GetLang_2B( psz );
1765 if( !strcmp( pl->psz_iso639_1, "??" ) )
1766 {
1767 pl = GetLang_2T( psz );
1768 }
1769 }
1770 if( pl && strcmp( pl->psz_iso639_1, "??" ) )
1771 {
1772 lang = ( ( pl->psz_iso639_2T[0] - 0x60 ) << 10 ) |
1773 ( ( pl->psz_iso639_2T[1] - 0x60 ) << 5 ) |
1774 ( ( pl->psz_iso639_2T[2] - 0x60 ) );
1775 }
1776 bo_add_16be( mdhd, lang ); // language
1777 }
1778 else
1779 {
1780 bo_add_16be( mdhd, 0 ); // language
1781 }
1782 bo_add_16be( mdhd, 0 ); // predefined
1783 box_fix( mdhd );
1784 box_gather( mdia, mdhd );
1785
1786 /* handler reference */
1787 hdlr = box_full_new( "hdlr", 0, 0 );
1788
1789 if( p_sys->b_mov )
1790 bo_add_fourcc( hdlr, "mhlr" ); // media handler
1791 else
1792 bo_add_32be( hdlr, 0 );
1793
1794 if( p_stream->fmt.i_cat == AUDIO_ES )
1795 bo_add_fourcc( hdlr, "soun" );
1796 else if( p_stream->fmt.i_cat == VIDEO_ES )
1797 bo_add_fourcc( hdlr, "vide" );
1798 else if( p_stream->fmt.i_cat == SPU_ES )
1799 bo_add_fourcc( hdlr, "text" );
1800
1801 bo_add_32be( hdlr, 0 ); // reserved
1802 bo_add_32be( hdlr, 0 ); // reserved
1803 bo_add_32be( hdlr, 0 ); // reserved
1804
1805 if( p_sys->b_mov )
1806 bo_add_8( hdlr, 12 ); /* Pascal string for .mov */
1807
1808 if( p_stream->fmt.i_cat == AUDIO_ES )
1809 bo_add_mem( hdlr, 12, (uint8_t*)"SoundHandler" );
1810 else if( p_stream->fmt.i_cat == VIDEO_ES )
1811 bo_add_mem( hdlr, 12, (uint8_t*)"VideoHandler" );
1812 else
1813 bo_add_mem( hdlr, 12, (uint8_t*)"Text Handler" );
1814
1815 if( !p_sys->b_mov )
1816 bo_add_8( hdlr, 0 ); /* asciiz string for .mp4, yes that's BRAIN DAMAGED F**K MP4 */
1817
1818 box_fix( hdlr );
1819 box_gather( mdia, hdlr );
1820
1821 /* minf*/
1822 minf = box_new( "minf" );
1823
1824 /* add smhd|vmhd */
1825 if( p_stream->fmt.i_cat == AUDIO_ES )
1826 {
1827 bo_t *smhd;
1828
1829 smhd = box_full_new( "smhd", 0, 0 );
1830 bo_add_16be( smhd, 0 ); // balance
1831 bo_add_16be( smhd, 0 ); // reserved
1832 box_fix( smhd );
1833
1834 box_gather( minf, smhd );
1835 }
1836 else if( p_stream->fmt.i_cat == VIDEO_ES )
1837 {
1838 bo_t *vmhd;
1839
1840 vmhd = box_full_new( "vmhd", 0, 1 );
1841 bo_add_16be( vmhd, 0 ); // graphicsmode
1842 for( i = 0; i < 3; i++ )
1843 {
1844 bo_add_16be( vmhd, 0 ); // opcolor
1845 }
1846 box_fix( vmhd );
1847
1848 box_gather( minf, vmhd );
1849 }
1850 else if( p_stream->fmt.i_cat == SPU_ES )
1851 {
1852 bo_t *gmhd = box_new( "gmhd" );
1853 bo_t *gmin = box_full_new( "gmin", 0, 1 );
1854
1855 bo_add_16be( gmin, 0 ); // graphicsmode
1856 for( i = 0; i < 3; i++ )
1857 {
1858 bo_add_16be( gmin, 0 ); // opcolor
1859 }
1860 bo_add_16be( gmin, 0 ); // balance
1861 bo_add_16be( gmin, 0 ); // reserved
1862 box_fix( gmin );
1863
1864 box_gather( gmhd, gmin );
1865 box_fix( gmhd );
1866
1867 box_gather( minf, gmhd );
1868 }
1869
1870 /* dinf */
1871 dinf = box_new( "dinf" );
1872 dref = box_full_new( "dref", 0, 0 );
1873 bo_add_32be( dref, 1 );
1874 url = box_full_new( "url ", 0, 0x01 );
1875 box_fix( url );
1876 box_gather( dref, url );
1877 box_fix( dref );
1878 box_gather( dinf, dref );
1879
1880 /* append dinf to mdia */
1881 box_fix( dinf );
1882 box_gather( minf, dinf );
1883
1884 /* add stbl */
1885 stbl = GetStblBox( p_mux, p_stream );
1886
1887 /* append stbl to minf */
1888 p_stream->i_stco_pos += minf->i_buffer;
1889 box_gather( minf, stbl );
1890
1891 /* append minf to mdia */
1892 box_fix( minf );
1893 p_stream->i_stco_pos += mdia->i_buffer;
1894 box_gather( mdia, minf );
1895
1896 /* append mdia to trak */
1897 box_fix( mdia );
1898 p_stream->i_stco_pos += trak->i_buffer;
1899 box_gather( trak, mdia );
1900
1901 /* append trak to moov */
1902 box_fix( trak );
1903 p_stream->i_stco_pos += moov->i_buffer;
1904 box_gather( moov, trak );
1905 }
1906
1907 /* Add user data tags */
1908 box_gather( moov, GetUdtaTag( p_mux ) );
1909
1910 box_fix( moov );
1911 return moov;
1912 }
1913
1914 /****************************************************************************/
1915
1916 static void bo_init( bo_t *p_bo, int i_size, uint8_t *p_buffer,
1917 bool b_grow )
1918 {
1919 if( !p_buffer )
1920 {
1921 p_bo->i_buffer_size = __MAX( i_size, 1024 );
1922 p_bo->p_buffer = xmalloc( p_bo->i_buffer_size );
1923 }
1924 else
1925 {
1926 p_bo->i_buffer_size = i_size;
1927 p_bo->p_buffer = p_buffer;
1928 }
1929
1930 p_bo->b_grow = b_grow;
1931 p_bo->i_buffer = 0;
1932 }
1933
1934 static void bo_add_8( bo_t *p_bo, uint8_t i )
1935 {
1936 if( p_bo->i_buffer < p_bo->i_buffer_size )
1937 {
1938 p_bo->p_buffer[p_bo->i_buffer] = i;
1939 }
1940 else if( p_bo->b_grow )
1941 {
1942 p_bo->i_buffer_size += 1024;
1943 p_bo->p_buffer = xrealloc( p_bo->p_buffer, p_bo->i_buffer_size );
1944 p_bo->p_buffer[p_bo->i_buffer] = i;
1945 }
1946
1947 p_bo->i_buffer++;
1948 }
1949
1950 static void bo_add_16be( bo_t *p_bo, uint16_t i )
1951 {
1952 bo_add_8( p_bo, ( ( i >> 8) &0xff ) );
1953 bo_add_8( p_bo, i &0xff );
1954 }
1955
1956 static void bo_add_24be( bo_t *p_bo, uint32_t i )
1957 {
1958 bo_add_8( p_bo, ( ( i >> 16) &0xff ) );
1959 bo_add_8( p_bo, ( ( i >> 8) &0xff ) );
1960 bo_add_8( p_bo, ( i &0xff ) );
1961 }
1962 static void bo_add_32be( bo_t *p_bo, uint32_t i )
1963 {
1964 bo_add_16be( p_bo, ( ( i >> 16) &0xffff ) );
1965 bo_add_16be( p_bo, i &0xffff );
1966 }
1967
1968 static void bo_fix_32be ( bo_t *p_bo, int i_pos, uint32_t i)
1969 {
1970 p_bo->p_buffer[i_pos ] = ( i >> 24 )&0xff;
1971 p_bo->p_buffer[i_pos + 1] = ( i >> 16 )&0xff;
1972 p_bo->p_buffer[i_pos + 2] = ( i >> 8 )&0xff;
1973 p_bo->p_buffer[i_pos + 3] = ( i )&0xff;
1974 }
1975
1976 static void bo_add_64be( bo_t *p_bo, uint64_t i )
1977 {
1978 bo_add_32be( p_bo, ( ( i >> 32) &0xffffffff ) );
1979 bo_add_32be( p_bo, i &0xffffffff );
1980 }
1981
1982 static void bo_add_fourcc( bo_t *p_bo, const char *fcc )
1983 {
1984 bo_add_8( p_bo, fcc[0] );
1985 bo_add_8( p_bo, fcc[1] );
1986 bo_add_8( p_bo, fcc[2] );
1987 bo_add_8( p_bo, fcc[3] );
1988 }
1989
1990 static void bo_add_mem( bo_t *p_bo, int i_size, uint8_t *p_mem )
1991 {
1992 int i;
1993
1994 for( i = 0; i < i_size; i++ )
1995 {
1996 bo_add_8( p_bo, p_mem[i] );
1997 }
1998 }
1999
2000 static void bo_add_descr( bo_t *p_bo, uint8_t tag, uint32_t i_size )
2001 {
2002 uint32_t i_length;
2003 uint8_t vals[4];
2004
2005 i_length = i_size;
2006 vals[3] = (unsigned char)(i_length & 0x7f);
2007 i_length >>= 7;
2008 vals[2] = (unsigned char)((i_length & 0x7f) | 0x80);
2009 i_length >>= 7;
2010 vals[1] = (unsigned char)((i_length & 0x7f) | 0x80);
2011 i_length >>= 7;
2012 vals[0] = (unsigned char)((i_length & 0x7f) | 0x80);
2013
2014 bo_add_8( p_bo, tag );
2015
2016 if( i_size < 0x00000080 )
2017 {
2018 bo_add_8( p_bo, vals[3] );
2019 }
2020 else if( i_size < 0x00004000 )
2021 {
2022 bo_add_8( p_bo, vals[2] );
2023 bo_add_8( p_bo, vals[3] );
2024 }
2025 else if( i_size < 0x00200000 )
2026 {
2027 bo_add_8( p_bo, vals[1] );
2028 bo_add_8( p_bo, vals[2] );
2029 bo_add_8( p_bo, vals[3] );
2030 }
2031 else if( i_size < 0x10000000 )
2032 {
2033 bo_add_8( p_bo, vals[0] );
2034 bo_add_8( p_bo, vals[1] );
2035 bo_add_8( p_bo, vals[2] );
2036 bo_add_8( p_bo, vals[3] );
2037 }
2038 }
2039
2040 static void bo_add_bo( bo_t *p_bo, bo_t *p_bo2 )
2041 {
2042 int i;
2043
2044 for( i = 0; i < p_bo2->i_buffer; i++ )
2045 {
2046 bo_add_8( p_bo, p_bo2->p_buffer[i] );
2047 }
2048 }
2049
2050 static bo_t * box_new( const char *fcc )
2051 {
2052 bo_t *box;
2053
2054 if( ( box = malloc( sizeof( bo_t ) ) ) )
2055 {
2056 bo_init( box, 0, NULL, true );
2057
2058 bo_add_32be ( box, 0 );
2059 bo_add_fourcc( box, fcc );
2060 }
2061
2062 return box;
2063 }
2064
2065 static bo_t * box_full_new( const char *fcc, uint8_t v, uint32_t f )
2066 {
2067 bo_t *box;
2068
2069 if( ( box = malloc( sizeof( bo_t ) ) ) )
2070 {
2071 bo_init( box, 0, NULL, true );
2072
2073 bo_add_32be ( box, 0 );
2074 bo_add_fourcc( box, fcc );
2075 bo_add_8 ( box, v );
2076 bo_add_24be ( box, f );
2077 }
2078
2079 return box;
2080 }
2081
2082 static void box_fix( bo_t *box )
2083 {
2084 bo_t box_tmp;
2085
2086 memcpy( &box_tmp, box, sizeof( bo_t ) );
2087
2088 box_tmp.i_buffer = 0;
2089 bo_add_32be( &box_tmp, box->i_buffer );
2090 }
2091
2092 static void box_free( bo_t *box )
2093 {
2094 free( box->p_buffer );
2095 free( box );
2096 }
2097
2098 static void box_gather ( bo_t *box, bo_t *box2 )
2099 {
2100 bo_add_bo( box, box2 );
2101 box_free( box2 );
2102 }
2103
2104 static block_t * bo_to_sout( sout_instance_t *p_sout, bo_t *box )
2105 {
2106 (void)p_sout;
2107 block_t *p_buf;
2108
2109 p_buf = block_New( p_sout, box->i_buffer );
2110 if( box->i_buffer > 0 )
2111 {
2112 memcpy( p_buf->p_buffer, box->p_buffer, box->i_buffer );
2113 }
2114
2115 return p_buf;
2116 }
2117
2118 static void box_send( sout_mux_t *p_mux, bo_t *box )
2119 {
2120 block_t *p_buf;
2121
2122 p_buf = bo_to_sout( p_mux->p_sout, box );
2123 box_free( box );
2124
2125 sout_AccessOutWrite( p_mux->p_access, p_buf );
2126 }
2127
2128 static int64_t get_timestamp(void)
2129 {
2130 int64_t i_timestamp = time(NULL);
2131
2132 i_timestamp += 2082844800; // MOV/MP4 start date is 1/1/1904
2133 // 208284480 is (((1970 - 1904) * 365) + 17) * 24 * 60 * 60
2134
2135 return i_timestamp;
2136 }