1 /*****************************************************************************
3 *****************************************************************************
4 * Copyright (C) 2001, 2002, 2003, 2006 VLC authors and 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 it
11 * under the terms of the GNU Lesser General Public License as published by
12 * the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
20 * You should have received a copy of the GNU Lesser General Public License
21 * along with this program; if not, write to the Free Software Foundation,
22 * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
23 *****************************************************************************/
25 /*****************************************************************************
27 *****************************************************************************/
33 #include <vlc_common.h>
34 #include <vlc_plugin.h>
36 #include <vlc_block.h>
42 #include <vlc_iso_lang.h>
45 #include "../demux/mpeg/mpeg_parser_helpers.h"
46 #include "../demux/mp4/libmp4.h"
49 /*****************************************************************************
51 *****************************************************************************/
52 #define FASTSTART_TEXT N_("Create \"Fast Start\" files")
53 #define FASTSTART_LONGTEXT N_(\
54 "Create \"Fast Start\" files. " \
55 "\"Fast Start\" files are optimized for downloads and allow the user " \
56 "to start previewing the file while it is downloading.")
58 static int Open (vlc_object_t *);
59 static void Close (vlc_object_t *);
60 static int OpenFrag (vlc_object_t *);
61 static void CloseFrag (vlc_object_t *);
63 #define SOUT_CFG_PREFIX "sout-mp4-"
66 set_description(N_("MP4/MOV muxer"))
67 set_category(CAT_SOUT)
68 set_subcategory(SUBCAT_SOUT_MUX)
71 add_bool(SOUT_CFG_PREFIX "faststart", true,
72 FASTSTART_TEXT, FASTSTART_LONGTEXT,
74 set_capability("sout mux", 5)
75 add_shortcut("mp4", "mov", "3gp")
76 set_callbacks(Open, Close)
79 set_description(N_("Fragmented and streamable MP4 muxer"))
80 set_category(CAT_SOUT)
81 set_subcategory(SUBCAT_SOUT_MUX)
82 set_shortname("MP4 Frag")
83 add_shortcut("mp4frag", "mp4stream")
84 set_capability("sout mux", 0)
85 set_callbacks(OpenFrag, CloseFrag)
89 /*****************************************************************************
91 *****************************************************************************/
92 static const char *const ppsz_sout_options[] = {
96 static int Control(sout_mux_t *, int, va_list);
97 static int AddStream(sout_mux_t *, sout_input_t *);
98 static int DelStream(sout_mux_t *, sout_input_t *);
99 static int Mux (sout_mux_t *);
100 static int MuxFrag (sout_mux_t *);
102 /*****************************************************************************
104 *****************************************************************************/
112 unsigned int i_flags;
115 typedef struct mp4_fragentry_t mp4_fragentry_t;
117 struct mp4_fragentry_t
121 mp4_fragentry_t *p_next;
124 typedef struct mp4_fragindex_t
126 uint64_t i_moofoffset;
133 typedef struct mp4_fragqueue_t
135 mp4_fragentry_t *p_first;
136 mp4_fragentry_t *p_last;
142 unsigned int i_track_id;
145 unsigned int i_entry_count;
146 unsigned int i_entry_max;
148 int64_t i_length_neg;
151 int64_t i_dts_start; /* applies to current segment only */
152 int64_t i_read_duration;
153 uint32_t i_timescale;
154 mtime_t i_starttime; /* the really first packet */
157 /* XXX: needed for other codecs too, see lavf */
160 /* for later stco fix-up (fast start files) */
165 int64_t i_last_dts; /* applies to current segment only */
166 int64_t i_last_length;
170 uint32_t i_trex_length;
171 uint32_t i_trex_size;
172 uint32_t i_tfhd_flags;
174 uint32_t i_current_run;
175 mp4_fragentry_t *p_held_entry;
176 mp4_fragqueue_t read;
177 mp4_fragqueue_t towrite;
178 mtime_t i_last_iframe_time;
179 mtime_t i_written_duration;
180 mp4_fragindex_t *p_indexentries;
181 uint32_t i_indexentriesmax;
182 uint32_t i_indexentries;
185 struct sout_mux_sys_t
194 mtime_t i_read_duration;
196 unsigned int i_nb_streams;
197 mp4_stream_t **pp_streams;
202 mtime_t i_written_duration;
203 uint32_t i_mfhd_sequence;
206 static bo_t *box_new (const char *fcc);
207 static bo_t *box_full_new(const char *fcc, uint8_t v, uint32_t f);
208 static void box_fix (bo_t *box);
209 static void box_gather (bo_t *box, bo_t *box2);
211 static void box_send(sout_mux_t *p_mux, bo_t *box);
213 static bo_t *GetMoovBox(sout_mux_t *p_mux);
215 static block_t *ConvertSUBT(block_t *);
216 static block_t *ConvertFromAnnexB(block_t *);
218 static const char avc1_start_code[4] = { 0, 0, 0, 1 };
220 /*****************************************************************************
222 *****************************************************************************/
223 static int Open(vlc_object_t *p_this)
225 sout_mux_t *p_mux = (sout_mux_t*)p_this;
226 sout_mux_sys_t *p_sys;
229 msg_Dbg(p_mux, "Mp4 muxer opened");
230 config_ChainParse(p_mux, SOUT_CFG_PREFIX, ppsz_sout_options, p_mux->p_cfg);
232 p_mux->pf_control = Control;
233 p_mux->pf_addstream = AddStream;
234 p_mux->pf_delstream = DelStream;
236 p_mux->p_sys = p_sys = malloc(sizeof(sout_mux_sys_t));
240 p_sys->i_nb_streams = 0;
241 p_sys->pp_streams = NULL;
242 p_sys->i_mdat_pos = 0;
243 p_sys->b_mov = p_mux->psz_mux && !strcmp(p_mux->psz_mux, "mov");
244 p_sys->b_3gp = p_mux->psz_mux && !strcmp(p_mux->psz_mux, "3gp");
245 p_sys->i_read_duration = 0;
246 p_sys->b_fragmented = false;
249 /* Now add ftyp header */
250 box = box_new("ftyp");
252 bo_add_fourcc(box, "3gp6");
254 bo_add_fourcc(box, "isom");
255 bo_add_32be (box, 0);
257 bo_add_fourcc(box, "3gp4");
259 bo_add_fourcc(box, "mp41");
260 bo_add_fourcc(box, "avc1");
263 p_sys->i_pos += box->len;
264 p_sys->i_mdat_pos = p_sys->i_pos;
266 box_send(p_mux, box);
270 * Quicktime actually doesn't like the 64 bits extensions !!! */
271 p_sys->b_64_ext = false;
273 /* Now add mdat header */
274 box = box_new("mdat");
275 bo_add_64be (box, 0); // enough to store an extended size
277 p_sys->i_pos += box->len;
279 box_send(p_mux, box);
284 /*****************************************************************************
286 *****************************************************************************/
287 static void Close(vlc_object_t *p_this)
289 sout_mux_t *p_mux = (sout_mux_t*)p_this;
290 sout_mux_sys_t *p_sys = p_mux->p_sys;
292 msg_Dbg(p_mux, "Close");
294 /* Update mdat size */
297 if (p_sys->i_pos - p_sys->i_mdat_pos >= (((uint64_t)1)<<32)) {
299 bo_add_32be (&bo, 1);
300 bo_add_fourcc(&bo, "mdat");
301 bo_add_64be (&bo, p_sys->i_pos - p_sys->i_mdat_pos);
303 bo_add_32be (&bo, 8);
304 bo_add_fourcc(&bo, "wide");
305 bo_add_32be (&bo, p_sys->i_pos - p_sys->i_mdat_pos - 8);
306 bo_add_fourcc(&bo, "mdat");
309 bo.b->i_buffer = bo.len;
310 sout_AccessOutSeek(p_mux->p_access, p_sys->i_mdat_pos);
311 sout_AccessOutWrite(p_mux->p_access, bo.b);
313 /* Create MOOV header */
314 uint64_t i_moov_pos = p_sys->i_pos;
315 bo_t *moov = GetMoovBox(p_mux);
317 /* Check we need to create "fast start" files */
318 p_sys->b_fast_start = var_GetBool(p_this, SOUT_CFG_PREFIX "faststart");
319 while (p_sys->b_fast_start) {
320 /* Move data to the end of the file so we can fit the moov header
322 int64_t i_size = p_sys->i_pos - p_sys->i_mdat_pos;
323 int i_moov_size = moov->len;
326 int64_t i_chunk = __MIN(32768, i_size);
327 block_t *p_buf = block_Alloc(i_chunk);
328 sout_AccessOutSeek(p_mux->p_access,
329 p_sys->i_mdat_pos + i_size - i_chunk);
330 if (sout_AccessOutRead(p_mux->p_access, p_buf) < i_chunk) {
331 msg_Warn(p_this, "read() not supported by access output, "
332 "won't create a fast start file");
333 p_sys->b_fast_start = false;
334 block_Release(p_buf);
337 sout_AccessOutSeek(p_mux->p_access, p_sys->i_mdat_pos + i_size +
338 i_moov_size - i_chunk);
339 sout_AccessOutWrite(p_mux->p_access, p_buf);
343 if (!p_sys->b_fast_start)
346 /* Fix-up samples to chunks table in MOOV header */
347 for (unsigned int i_trak = 0; i_trak < p_sys->i_nb_streams; i_trak++) {
348 mp4_stream_t *p_stream = p_sys->pp_streams[i_trak];
350 moov->len = p_stream->i_stco_pos;
351 for (unsigned i = 0; i < p_stream->i_entry_count; ) {
352 mp4_entry_t *entry = p_stream->entry;
353 if (p_stream->b_stco64)
354 bo_add_64be(moov, entry[i].i_pos + i_moov_size);
356 bo_add_32be(moov, entry[i].i_pos + i_moov_size);
358 for (; i < p_stream->i_entry_count; i++)
359 if (i >= p_stream->i_entry_count - 1 ||
360 entry[i].i_pos + entry[i].i_size != entry[i+1].i_pos) {
367 moov->len = i_moov_size;
368 i_moov_pos = p_sys->i_mdat_pos;
369 p_sys->b_fast_start = false;
372 /* Write MOOV header */
373 sout_AccessOutSeek(p_mux->p_access, i_moov_pos);
374 box_send(p_mux, moov);
377 for (unsigned int i_trak = 0; i_trak < p_sys->i_nb_streams; i_trak++) {
378 mp4_stream_t *p_stream = p_sys->pp_streams[i_trak];
380 es_format_Clean(&p_stream->fmt);
381 if (p_stream->a52_frame)
382 block_Release(p_stream->a52_frame);
383 free(p_stream->entry);
386 if (p_sys->i_nb_streams)
387 free(p_sys->pp_streams);
391 /*****************************************************************************
393 *****************************************************************************/
394 static int Control(sout_mux_t *p_mux, int i_query, va_list args)
401 case MUX_CAN_ADD_STREAM_WHILE_MUXING:
402 pb_bool = (bool*)va_arg(args, bool *);
406 case MUX_GET_ADD_STREAM_WAIT:
407 pb_bool = (bool*)va_arg(args, bool *);
411 case MUX_GET_MIME: /* Not needed, as not streamable */
417 /*****************************************************************************
419 *****************************************************************************/
420 static int AddStream(sout_mux_t *p_mux, sout_input_t *p_input)
422 sout_mux_sys_t *p_sys = p_mux->p_sys;
423 mp4_stream_t *p_stream;
425 switch(p_input->p_fmt->i_codec)
436 case VLC_CODEC_MJPGB:
442 case VLC_CODEC_AMR_NB:
443 case VLC_CODEC_AMR_WB:
448 msg_Warn(p_mux, "subtitle track added like in .mov (even when creating .mp4)");
451 msg_Err(p_mux, "unsupported codec %4.4s in mp4",
452 (char*)&p_input->p_fmt->i_codec);
456 p_stream = malloc(sizeof(mp4_stream_t));
459 es_format_Copy(&p_stream->fmt, p_input->p_fmt);
460 p_stream->i_track_id = p_sys->i_nb_streams + 1;
461 p_stream->i_length_neg = 0;
462 p_stream->i_entry_count = 0;
463 p_stream->i_entry_max = 1000;
465 calloc(p_stream->i_entry_max, sizeof(mp4_entry_t));
466 p_stream->i_dts_start = 0;
467 p_stream->i_read_duration = 0;
468 p_stream->a52_frame = NULL;
469 switch( p_stream->fmt.i_cat )
472 if(!p_stream->fmt.audio.i_rate)
474 msg_Warn( p_mux, "no audio rate given for stream %d, assuming 48KHz",
475 p_sys->i_nb_streams );
476 p_stream->fmt.audio.i_rate = 48000;
478 p_stream->i_timescale = p_stream->fmt.audio.i_rate;
481 if( !p_stream->fmt.video.i_frame_rate ||
482 !p_stream->fmt.video.i_frame_rate_base )
484 msg_Warn( p_mux, "Missing frame rate for stream %d, assuming 25fps",
485 p_sys->i_nb_streams );
486 p_stream->fmt.video.i_frame_rate = 25;
487 p_stream->fmt.video.i_frame_rate_base = 1;
489 p_stream->i_timescale = p_stream->fmt.video.i_frame_rate * 1000 /
490 p_stream->fmt.video.i_frame_rate_base;
493 p_stream->i_timescale = CLOCK_FREQ;
497 p_stream->i_starttime = p_sys->i_read_duration;
498 p_stream->b_hasbframes = false;
500 p_stream->i_last_dts = 0;
501 p_stream->i_last_length = 0;
503 p_stream->b_hasiframes = false;
504 p_stream->i_trex_length = 0;
505 p_stream->i_trex_size = 0;
507 p_stream->i_current_run = 0;
508 p_stream->read.p_first = NULL;
509 p_stream->read.p_last = NULL;
510 p_stream->towrite.p_first = NULL;
511 p_stream->towrite.p_last = NULL;
512 p_stream->p_held_entry = NULL;
513 p_stream->i_last_iframe_time = 0;
514 p_stream->i_written_duration = 0;
515 p_stream->p_indexentries = NULL;
516 p_stream->i_indexentriesmax = 0;
517 p_stream->i_indexentries = 0;
519 p_input->p_sys = p_stream;
521 msg_Dbg(p_mux, "adding input");
523 TAB_APPEND(p_sys->i_nb_streams, p_sys->pp_streams, p_stream);
527 /*****************************************************************************
529 *****************************************************************************/
530 static int DelStream(sout_mux_t *p_mux, sout_input_t *p_input)
533 msg_Dbg(p_mux, "removing input");
537 /*****************************************************************************
539 *****************************************************************************/
540 static int Mux(sout_mux_t *p_mux)
542 sout_mux_sys_t *p_sys = p_mux->p_sys;
545 int i_stream = sout_MuxGetStream(p_mux, 2, NULL);
549 sout_input_t *p_input = p_mux->pp_inputs[i_stream];
550 mp4_stream_t *p_stream = (mp4_stream_t*)p_input->p_sys;
554 p_data = block_FifoGet(p_input->p_fifo);
555 if (p_stream->fmt.i_codec == VLC_CODEC_H264 ||
556 p_stream->fmt.i_codec == VLC_CODEC_HEVC)
557 p_data = ConvertFromAnnexB(p_data);
558 else if (p_stream->fmt.i_codec == VLC_CODEC_SUBT)
559 p_data = ConvertSUBT(p_data);
560 else if (p_stream->fmt.i_codec == VLC_CODEC_A52 ||
561 p_stream->fmt.i_codec == VLC_CODEC_EAC3) {
562 if (p_stream->a52_frame == NULL && p_data->i_buffer >= 8)
563 p_stream->a52_frame = block_Duplicate(p_data);
567 /* Reset reference dts in case of discontinuity (ex: gather sout) */
568 if ( p_stream->i_entry_count == 0 || p_data->i_flags & BLOCK_FLAG_DISCONTINUITY )
570 p_stream->i_dts_start = p_data->i_dts;
571 p_stream->i_last_dts = p_data->i_dts;
572 p_stream->i_length_neg = 0;
575 if (p_stream->fmt.i_cat != SPU_ES) {
576 /* Fix length of the sample */
577 if (block_FifoCount(p_input->p_fifo) > 0) {
578 block_t *p_next = block_FifoShow(p_input->p_fifo);
579 if ( p_next->i_flags & BLOCK_FLAG_DISCONTINUITY )
580 { /* we have no way to know real length except by decoding */
581 if ( p_stream->fmt.i_cat == VIDEO_ES )
583 p_data->i_length = CLOCK_FREQ *
584 p_stream->fmt.video.i_frame_rate_base /
585 p_stream->fmt.video.i_frame_rate;
586 msg_Dbg( p_mux, "video track %u fixup to %"PRId64" for sample %u",
587 p_stream->i_track_id, p_data->i_length, p_stream->i_entry_count );
589 else if ( p_stream->fmt.i_cat == AUDIO_ES &&
590 p_stream->fmt.audio.i_rate &&
591 p_data->i_nb_samples )
593 p_data->i_length = CLOCK_FREQ * p_data->i_nb_samples /
594 p_stream->fmt.audio.i_rate;
595 msg_Dbg( p_mux, "audio track %u fixup to %"PRId64" for sample %u",
596 p_stream->i_track_id, p_data->i_length, p_stream->i_entry_count );
598 else if ( p_data->i_length <= 0 )
600 msg_Warn( p_mux, "unknown length for track %u sample %u",
601 p_stream->i_track_id, p_stream->i_entry_count );
602 p_data->i_length = 1;
607 int64_t i_diff = p_next->i_dts - p_data->i_dts;
608 if (i_diff < CLOCK_FREQ) /* protection */
609 p_data->i_length = i_diff;
612 if (p_data->i_length <= 0) {
613 msg_Warn(p_mux, "i_length <= 0");
614 p_stream->i_length_neg += p_data->i_length - 1;
615 p_data->i_length = 1;
616 } else if (p_stream->i_length_neg < 0) {
617 int64_t i_recover = __MIN(p_data->i_length / 4, - p_stream->i_length_neg);
619 p_data->i_length -= i_recover;
620 p_stream->i_length_neg += i_recover;
624 if (p_stream->fmt.i_cat == SPU_ES && p_stream->i_entry_count > 0) {
625 int64_t i_length = p_data->i_dts - p_stream->i_last_dts;
627 if (i_length <= 0) /* FIXME handle this broken case */
631 if (p_stream->entry[p_stream->i_entry_count-1].i_length <= 0)
632 p_stream->entry[p_stream->i_entry_count-1].i_length = i_length;
635 /* add index entry */
636 mp4_entry_t *e = &p_stream->entry[p_stream->i_entry_count];
637 e->i_pos = p_sys->i_pos;
638 e->i_size = p_data->i_buffer;
640 if ( p_data->i_dts > VLC_TS_INVALID && p_data->i_pts > p_data->i_dts )
642 e->i_pts_dts = p_data->i_pts - p_data->i_dts;
643 if ( !p_stream->b_hasbframes )
644 p_stream->b_hasbframes = true;
646 else e->i_pts_dts = 0;
648 e->i_length = p_data->i_length;
649 e->i_flags = p_data->i_flags;
651 p_stream->i_entry_count++;
652 /* XXX: -1 to always have 2 entry for easy adding of empty SPU */
653 if (p_stream->i_entry_count >= p_stream->i_entry_max - 1) {
654 p_stream->i_entry_max += 1000;
655 p_stream->entry = xrealloc(p_stream->entry,
656 p_stream->i_entry_max * sizeof(mp4_entry_t));
660 p_stream->i_read_duration += __MAX( 0, p_data->i_length );
661 p_stream->i_last_length = p_data->i_length;
662 p_sys->i_pos += p_data->i_buffer;
664 /* Save the DTS for SPU */
665 p_stream->i_last_dts = p_data->i_dts;
668 sout_AccessOutWrite(p_mux->p_access, p_data);
670 /* close subtitle with empty frame */
671 if (p_stream->fmt.i_cat == SPU_ES) {
672 int64_t i_length = p_stream->entry[p_stream->i_entry_count-1].i_length;
674 if ( i_length != 0 && (p_data = block_Alloc(3)) ) {
676 msg_Dbg(p_mux, "writing an empty sub") ;
678 /* Append a idx entry */
679 mp4_entry_t *e = &p_stream->entry[p_stream->i_entry_count];
680 e->i_pos = p_sys->i_pos;
686 /* XXX: No need to grow the entry here */
687 p_stream->i_entry_count++;
690 p_stream->i_last_dts += i_length;
693 p_data->i_dts = p_stream->i_last_dts;
694 p_data->i_dts = p_data->i_pts;
695 p_data->p_buffer[0] = 0;
696 p_data->p_buffer[1] = 1;
697 p_data->p_buffer[2] = ' ';
699 p_sys->i_pos += p_data->i_buffer;
701 sout_AccessOutWrite(p_mux->p_access, p_data);
704 /* Fix duration = current segment starttime + duration within */
705 p_stream->i_read_duration = p_stream->i_starttime + ( p_stream->i_last_dts - p_stream->i_dts_start );
709 /* Update the global segment/media duration */
710 for ( unsigned int i=0; i<p_sys->i_nb_streams; i++ )
712 if ( p_sys->pp_streams[i]->i_read_duration > p_sys->i_read_duration )
713 p_sys->i_read_duration = p_sys->pp_streams[i]->i_read_duration;
719 /*****************************************************************************
721 *****************************************************************************/
722 static block_t *ConvertSUBT(block_t *p_block)
724 p_block = block_Realloc(p_block, 2, p_block->i_buffer);
726 /* No trailling '\0' */
727 if (p_block->i_buffer > 2 && p_block->p_buffer[p_block->i_buffer-1] == '\0')
730 p_block->p_buffer[0] = ((p_block->i_buffer - 2) >> 8)&0xff;
731 p_block->p_buffer[1] = ((p_block->i_buffer - 2) )&0xff;
736 static block_t *ConvertFromAnnexB(block_t *p_block)
738 uint8_t *last = p_block->p_buffer; /* Assume it starts with 0x00000001 */
739 uint8_t *dat = &p_block->p_buffer[4];
740 uint8_t *end = &p_block->p_buffer[p_block->i_buffer];
743 /* Replace the 4 bytes start code with 4 bytes size,
744 * FIXME are all startcodes 4 bytes ? (I don't think :(*/
746 while (dat < end - 4) {
747 if (!memcmp(dat, avc1_start_code, 4))
755 int i_size = dat - &last[4];
756 last[0] = (i_size >> 24)&0xff;
757 last[1] = (i_size >> 16)&0xff;
758 last[2] = (i_size >> 8)&0xff;
759 last[3] = (i_size )&0xff;
761 /* Skip blocks with SPS/PPS */
762 //if ((last[4]&0x1f) == 7 || (last[4]&0x1f) == 8)
763 // ; // FIXME Find a way to skip dat without frelling everything
770 static bo_t *GetESDS(mp4_stream_t *p_stream)
773 int64_t i_bitrate_avg = 0;
774 int64_t i_bitrate_max = 0;
776 /* Compute avg/max bitrate */
777 for (unsigned i = 0; i < p_stream->i_entry_count; i++) {
778 i_bitrate_avg += p_stream->entry[i].i_size;
779 if (p_stream->entry[i].i_length > 0) {
780 int64_t i_bitrate = INT64_C(8000000) * p_stream->entry[i].i_size / p_stream->entry[i].i_length;
781 if (i_bitrate > i_bitrate_max)
782 i_bitrate_max = i_bitrate;
786 if (p_stream->i_read_duration > 0)
787 i_bitrate_avg = INT64_C(8000000) * i_bitrate_avg / p_stream->i_read_duration;
790 if (i_bitrate_max <= 1)
791 i_bitrate_max = 0x7fffffff;
794 int i_decoder_specific_info_size = (p_stream->fmt.i_extra > 0) ? 5 + p_stream->fmt.i_extra : 0;
796 esds = box_full_new("esds", 0, 0);
799 bo_add_mp4_tag_descr(esds, 0x03, 3 + 5 + 13 + i_decoder_specific_info_size + 5 + 1);
800 bo_add_16be(esds, p_stream->i_track_id);
801 bo_add_8 (esds, 0x1f); // flags=0|streamPriority=0x1f
803 /* DecoderConfigDescr */
804 bo_add_mp4_tag_descr(esds, 0x04, 13 + i_decoder_specific_info_size);
806 int i_object_type_indication;
807 switch(p_stream->fmt.i_codec)
810 i_object_type_indication = 0x20;
813 /* MPEG-I=0x6b, MPEG-II = 0x60 -> 0x65 */
814 i_object_type_indication = 0x65;
817 /* MPEG-I=0x6b, MPEG-II = 0x60 -> 0x65 */
818 i_object_type_indication = 0x6b;
821 /* FIXME for mpeg2-aac == 0x66->0x68 */
822 i_object_type_indication = 0x40;
825 i_object_type_indication =
826 p_stream->fmt.audio.i_rate < 32000 ? 0x69 : 0x6b;
829 i_object_type_indication = 0x00;
832 int i_stream_type = p_stream->fmt.i_cat == VIDEO_ES ? 0x04 : 0x05;
834 bo_add_8 (esds, i_object_type_indication);
835 bo_add_8 (esds, (i_stream_type << 2) | 1);
836 bo_add_24be(esds, 1024 * 1024); // bufferSizeDB
837 bo_add_32be(esds, i_bitrate_max); // maxBitrate
838 bo_add_32be(esds, i_bitrate_avg); // avgBitrate
840 if (p_stream->fmt.i_extra > 0) {
841 /* DecoderSpecificInfo */
842 bo_add_mp4_tag_descr(esds, 0x05, p_stream->fmt.i_extra);
844 for (int i = 0; i < p_stream->fmt.i_extra; i++)
845 bo_add_8(esds, ((uint8_t*)p_stream->fmt.p_extra)[i]);
848 /* SL_Descr mandatory */
849 bo_add_mp4_tag_descr(esds, 0x06, 1);
850 bo_add_8 (esds, 0x02); // sl_predefined
855 static bo_t *GetWaveTag(mp4_stream_t *p_stream)
860 wave = box_new("wave");
862 box = box_new("frma");
863 bo_add_fourcc(box, "mp4a");
864 box_gather(wave, box);
866 box = box_new("mp4a");
868 box_gather(wave, box);
870 box = GetESDS(p_stream);
871 box_gather(wave, box);
873 box = box_new("srcq");
874 bo_add_32be(box, 0x40);
875 box_gather(wave, box);
878 bo_add_32be(wave, 8); /* new empty box */
879 bo_add_32be(wave, 0); /* box label */
884 static bo_t *GetDec3Tag(mp4_stream_t *p_stream)
886 if (!p_stream->a52_frame)
890 bs_init(&s, p_stream->a52_frame->p_buffer, sizeof(p_stream->a52_frame->i_buffer));
891 bs_skip(&s, 16); // syncword
893 uint8_t fscod, bsid, bsmod, acmod, lfeon, strmtyp;
897 strmtyp = bs_read(&s, 2);
899 if (strmtyp & 0x1) // dependant or reserved stream
902 if (bs_read(&s, 3) != 0x0) // substreamid: we don't support more than 1 stream
906 bs_skip(&s, 11); // frmsizecod
907 fscod = bs_read(&s, 2);
909 bs_skip(&s, 2); // fscod2
912 numblkscod = bs_read(&s, 2);
915 acmod = bs_read(&s, 3);
916 lfeon = bs_read1(&s);
918 bsid = bs_read(&s, 5);
920 bs_skip(&s, 5); // dialnorm
921 if (bs_read1(&s)) // compre
922 bs_skip(&s, 5); // compr
925 bs_skip(&s, 5); // dialnorm2
926 if (bs_read1(&s)) // compr2e
927 bs_skip(&s, 8); // compr2
930 if (strmtyp == 0x1) // dependant stream XXX: unsupported
931 if (bs_read1(&s)) // chanmape
932 bs_skip(&s, 16); // chanmap
934 /* we have to skip mixing info to read bsmod */
935 if (bs_read1(&s)) { // mixmdate
936 if (acmod > 0x2) // 2+ channels
937 bs_skip(&s, 2); // dmixmod
938 if ((acmod & 0x1) && (acmod > 0x2)) // 3 front channels
939 bs_skip(&s, 3 + 3); // ltrtcmixlev + lorocmixlev
940 if (acmod & 0x4) // surround channel
941 bs_skip(&s, 3 + 3); // ltrsurmixlev + lorosurmixlev
944 bs_skip(&s, 5); // lfemixlevcod
945 if (strmtyp == 0) { // independant stream
946 if (bs_read1(&s)) // pgmscle
947 bs_skip(&s, 6); // pgmscl
948 if (acmod == 0x0) // dual mono
949 if (bs_read1(&s)) // pgmscl2e
950 bs_skip(&s, 6); // pgmscl2
951 if (bs_read1(&s)) // extpgmscle
952 bs_skip(&s, 6); // extpgmscl
953 uint8_t mixdef = bs_read(&s, 2);
956 else if (mixdef == 0x2)
958 else if (mixdef == 0x3) {
959 uint8_t mixdeflen = bs_read(&s, 5);
960 bs_skip(&s, 8 * (mixdeflen + 2));
962 if (acmod < 0x2) { // mono or dual mono
963 if (bs_read1(&s)) // paninfoe
964 bs_skip(&s, 14); // paninfo
965 if (acmod == 0) // dual mono
966 if (bs_read1(&s)) // paninfo2e
967 bs_skip(&s, 14); // paninfo2
969 if (bs_read1(&s)) { // frmmixcfginfoe
970 static const int blocks[4] = { 1, 2, 3, 6 };
971 int number_of_blocks = blocks[numblkscod];
972 if (number_of_blocks == 1)
973 bs_skip(&s, 5); // blkmixcfginfo[0]
974 else for (int i = 0; i < number_of_blocks; i++)
975 if (bs_read1(&s)) // blkmixcfginfoe
976 bs_skip(&s, 5); // blkmixcfginfo[i]
981 if (bs_read1(&s)) // infomdate
982 bsmod = bs_read(&s, 3);
984 uint8_t mp4_eac3_header[5];
985 bs_init(&s, mp4_eac3_header, sizeof(mp4_eac3_header));
987 int data_rate = p_stream->fmt.i_bitrate / 1000;
988 bs_write(&s, 13, data_rate);
989 bs_write(&s, 3, 0); // num_ind_sub - 1
990 bs_write(&s, 2, fscod);
991 bs_write(&s, 5, bsid);
992 bs_write(&s, 5, bsmod);
993 bs_write(&s, 3, acmod);
994 bs_write(&s, 1, lfeon);
995 bs_write(&s, 3, 0); // reserved
996 bs_write(&s, 4, 0); // num_dep_sub
997 bs_write(&s, 1, 0); // reserved
999 bo_t *dec3 = box_new("dec3");
1001 bo_add_mem(dec3, sizeof(mp4_eac3_header), mp4_eac3_header);
1006 static bo_t *GetDac3Tag(mp4_stream_t *p_stream)
1008 if (!p_stream->a52_frame)
1011 bo_t *dac3 = box_new("dac3");
1014 bs_init(&s, p_stream->a52_frame->p_buffer, sizeof(p_stream->a52_frame->i_buffer));
1016 uint8_t fscod, bsid, bsmod, acmod, lfeon, frmsizecod;
1018 bs_skip(&s, 16 + 16); // syncword + crc
1020 fscod = bs_read(&s, 2);
1021 frmsizecod = bs_read(&s, 6);
1022 bsid = bs_read(&s, 5);
1023 bsmod = bs_read(&s, 3);
1024 acmod = bs_read(&s, 3);
1026 bs_skip(&s, 2); // dsurmod
1028 if ((acmod & 1) && acmod != 1)
1029 bs_skip(&s, 2); // cmixlev
1031 bs_skip(&s, 2); // surmixlev
1034 lfeon = bs_read1(&s);
1036 uint8_t mp4_a52_header[3];
1037 bs_init(&s, mp4_a52_header, sizeof(mp4_a52_header));
1039 bs_write(&s, 2, fscod);
1040 bs_write(&s, 5, bsid);
1041 bs_write(&s, 3, bsmod);
1042 bs_write(&s, 3, acmod);
1043 bs_write(&s, 1, lfeon);
1044 bs_write(&s, 5, frmsizecod >> 1); // bit_rate_code
1045 bs_write(&s, 5, 0); // reserved
1047 bo_add_mem(dac3, sizeof(mp4_a52_header), mp4_a52_header);
1052 static bo_t *GetDamrTag(mp4_stream_t *p_stream)
1056 damr = box_new("damr");
1058 bo_add_fourcc(damr, "REFC");
1061 if (p_stream->fmt.i_codec == VLC_CODEC_AMR_NB)
1062 bo_add_16be(damr, 0x81ff); /* Mode set (all modes for AMR_NB) */
1064 bo_add_16be(damr, 0x83ff); /* Mode set (all modes for AMR_WB) */
1065 bo_add_16be(damr, 0x1); /* Mode change period (no restriction) */
1070 static bo_t *GetD263Tag(void)
1074 d263 = box_new("d263");
1076 bo_add_fourcc(d263, "VLC ");
1077 bo_add_16be(d263, 0xa);
1083 static void hevcParseVPS(uint8_t * p_buffer, size_t i_buffer, uint8_t *general,
1084 uint8_t * numTemporalLayer, bool * temporalIdNested)
1086 const size_t i_decoded_nal_size = 512;
1087 uint8_t p_dec_nal[i_decoded_nal_size];
1088 size_t i_size = (i_buffer < i_decoded_nal_size)?i_buffer:i_decoded_nal_size;
1089 nal_decode(p_buffer, p_dec_nal, i_size);
1091 /* first two bytes are the NAL header, 3rd and 4th are:
1092 vps_video_parameter_set_id(4)
1093 vps_reserved_3_2bis(2)
1094 vps_max_layers_minus1(6)
1095 vps_max_sub_layers_minus1(3)
1096 vps_temporal_id_nesting_flags
1098 *numTemporalLayer = ((p_dec_nal[3] & 0x0E) >> 1) + 1;
1099 *temporalIdNested = (bool)(p_dec_nal[3] & 0x01);
1101 /* 5th & 6th are reserved 0xffff */
1102 /* copy the first 12 bytes of profile tier */
1103 memcpy(general, &p_dec_nal[6], 12);
1106 static void hevcParseSPS(uint8_t * p_buffer, size_t i_buffer, uint8_t * chroma_idc,
1107 uint8_t *bit_depth_luma_minus8, uint8_t *bit_depth_chroma_minus8)
1109 const size_t i_decoded_nal_size = 512;
1110 uint8_t p_dec_nal[i_decoded_nal_size];
1111 size_t i_size = (i_buffer < i_decoded_nal_size)?i_buffer-2:i_decoded_nal_size;
1112 nal_decode(p_buffer+2, p_dec_nal, i_size);
1114 bs_init(&bs, p_dec_nal, i_size);
1118 uint32_t sps_max_sublayer_minus1 = bs_read(&bs, 3);
1120 /* skip nesting flag */
1123 hevc_skip_profile_tiers_level(&bs, sps_max_sublayer_minus1);
1126 (void) bs_read_ue( &bs );
1128 *chroma_idc = bs_read_ue(&bs);
1129 if (*chroma_idc == 3)
1132 /* skip width and heigh */
1133 (void) bs_read_ue( &bs );
1134 (void) bs_read_ue( &bs );
1136 uint32_t conformance_window_flag = bs_read1(&bs);
1137 if (conformance_window_flag) {
1139 (void) bs_read_ue(&bs);
1140 (void) bs_read_ue(&bs);
1141 (void) bs_read_ue(&bs);
1142 (void) bs_read_ue(&bs);
1144 *bit_depth_luma_minus8 = bs_read_ue(&bs);
1145 *bit_depth_chroma_minus8 = bs_read_ue(&bs);
1148 static bo_t *GetHvcCTag(mp4_stream_t *p_stream)
1150 /* Generate hvcC box matching iso/iec 14496-15 3rd edition */
1151 bo_t *hvcC = box_new("hvcC");
1152 if(!p_stream->fmt.i_extra)
1160 /* According to the specification HEVC stream can have
1161 * 16 vps id and an "unlimited" number of sps and pps id using ue(v) id*/
1162 struct nal p_vps[16], *p_sps = NULL, *p_pps = NULL, *p_sei = NULL,
1164 size_t i_vps = 0, i_sps = 0, i_pps = 0, i_sei = 0;
1165 uint8_t i_num_arrays = 0;
1167 uint8_t * p_buffer = p_stream->fmt.p_extra;
1168 size_t i_buffer = p_stream->fmt.i_extra;
1170 uint8_t general_configuration[12] = {0};
1171 uint8_t i_numTemporalLayer = 0;
1172 uint8_t i_chroma_idc = 1;
1173 uint8_t i_bit_depth_luma_minus8 = 0;
1174 uint8_t i_bit_depth_chroma_minus8 = 0;
1175 bool b_temporalIdNested = false;
1177 uint32_t cmp = 0xFFFFFFFF;
1179 /* look for start code 0X0000001 */
1181 cmp = (cmp << 8) | *p_buffer;
1182 if((cmp ^ UINT32_C(0x100)) <= UINT32_C(0xFF))
1188 p_nal->i_buffer = p_buffer - p_nal->p_buffer - ((i_buffer)?3:0);
1190 switch (*p_buffer & 0x72) {
1193 p_nal = &p_vps[i_vps++];
1194 p_nal->p_buffer = p_buffer;
1195 /* Only keep the general profile from the first VPS
1196 * if there are several (this shouldn't happen so soon) */
1198 hevcParseVPS(p_buffer, i_buffer, general_configuration,
1199 &i_numTemporalLayer, &b_temporalIdNested);
1205 struct nal * p_tmp = realloc(p_sps, sizeof(struct nal) * (i_sps + 1));
1209 p_nal = &p_sps[i_sps++];
1210 p_nal->p_buffer = p_buffer;
1211 if (i_sps == 1 && i_buffer > 15) {
1212 /* Get Chroma_idc and bitdepths */
1213 hevcParseSPS(p_buffer, i_buffer, &i_chroma_idc,
1214 &i_bit_depth_luma_minus8, &i_bit_depth_chroma_minus8);
1221 struct nal * p_tmp = realloc(p_pps, sizeof(struct nal) * (i_pps + 1));
1225 p_nal = &p_pps[i_pps++];
1226 p_nal->p_buffer = p_buffer;
1234 struct nal * p_tmp = realloc(p_sei, sizeof(struct nal) * (i_sei + 1));
1238 p_nal = &p_sei[i_sei++];
1239 p_nal->p_buffer = p_buffer;
1249 bo_add_8(hvcC, 0x01);
1250 bo_add_mem(hvcC, 12, general_configuration);
1251 /* Don't set min spatial segmentation */
1252 bo_add_16be(hvcC, 0xF000);
1253 /* Don't set parallelism type since segmentation isn't set */
1254 bo_add_8(hvcC, 0xFC);
1255 bo_add_8(hvcC, (0xFC | (i_chroma_idc & 0x03)));
1256 bo_add_8(hvcC, (0xF8 | (i_bit_depth_luma_minus8 & 0x07)));
1257 bo_add_8(hvcC, (0xF8 | (i_bit_depth_chroma_minus8 & 0x07)));
1259 /* Don't set framerate */
1260 bo_add_16be(hvcC, 0x0000);
1261 /* Force NAL size of 4 bytes that replace the startcode */
1262 bo_add_8(hvcC, (((i_numTemporalLayer & 0x07) << 3) |
1263 (b_temporalIdNested << 2) | 0x03));
1264 bo_add_8(hvcC, i_num_arrays);
1268 /* Write VPS without forcing array_completeness */
1270 bo_add_16be(hvcC, i_vps);
1271 for (size_t i = 0; i < i_vps; i++) {
1273 bo_add_16be(hvcC, p_nal->i_buffer);
1274 bo_add_mem(hvcC, p_nal->i_buffer, p_nal->p_buffer);
1279 /* Write SPS without forcing array_completeness */
1281 bo_add_16be(hvcC, i_sps);
1282 for (size_t i = 0; i < i_sps; i++) {
1284 bo_add_16be(hvcC, p_nal->i_buffer);
1285 bo_add_mem(hvcC, p_nal->i_buffer, p_nal->p_buffer);
1290 /* Write PPS without forcing array_completeness */
1292 bo_add_16be(hvcC, i_pps);
1293 for (size_t i = 0; i < i_pps; i++) {
1295 bo_add_16be(hvcC, p_nal->i_buffer);
1296 bo_add_mem(hvcC, p_nal->i_buffer, p_nal->p_buffer);
1301 /* Write SEI without forcing array_completeness */
1303 bo_add_16be(hvcC, i_sei);
1304 for (size_t i = 0; i < i_sei; i++) {
1306 bo_add_16be(hvcC, p_nal->i_buffer);
1307 bo_add_mem(hvcC, p_nal->i_buffer, p_nal->p_buffer);
1313 static bo_t *GetAvcCTag(mp4_stream_t *p_stream)
1316 uint8_t *p_sps = NULL;
1317 uint8_t *p_pps = NULL;
1321 if (p_stream->fmt.i_extra > 0) {
1322 /* FIXME: take into account multiple sps/pps */
1323 uint8_t *p_buffer = p_stream->fmt.p_extra;
1324 int i_buffer = p_stream->fmt.i_extra;
1326 while (i_buffer > 3) {
1327 while (memcmp(p_buffer, &avc1_start_code[1], 3)) {
1331 const int i_nal_type = p_buffer[3]&0x1f;
1332 int i_startcode = 0;
1334 for (int i_offset = 1; i_offset+2 < i_buffer ; i_offset++)
1335 if (!memcmp(&p_buffer[i_offset], &avc1_start_code[1], 3)) {
1336 /* we found another startcode */
1337 i_startcode = i_offset;
1338 while (p_buffer[i_startcode-1] == 0 && i_startcode > 0)
1343 int i_size = i_startcode ? i_startcode : i_buffer;
1345 if (i_nal_type == 7) {
1346 p_sps = &p_buffer[3];
1347 i_sps_size = i_size - 3;
1349 if (i_nal_type == 8) {
1350 p_pps = &p_buffer[3];
1351 i_pps_size = i_size - 3;
1358 /* FIXME use better value */
1359 avcC = box_new("avcC");
1360 bo_add_8(avcC, 1); /* configuration version */
1361 bo_add_8(avcC, i_sps_size ? p_sps[1] : 77);
1362 bo_add_8(avcC, i_sps_size ? p_sps[2] : 64);
1363 bo_add_8(avcC, i_sps_size ? p_sps[3] : 30); /* level, 5.1 */
1364 bo_add_8(avcC, 0xff); /* 0b11111100 | lengthsize = 0x11 */
1366 bo_add_8(avcC, 0xe0 | (i_sps_size > 0 ? 1 : 0)); /* 0b11100000 | sps_count */
1367 if (i_sps_size > 0) {
1368 bo_add_16be(avcC, i_sps_size);
1369 bo_add_mem(avcC, i_sps_size, p_sps);
1372 bo_add_8(avcC, (i_pps_size > 0 ? 1 : 0)); /* pps_count */
1373 if (i_pps_size > 0) {
1374 bo_add_16be(avcC, i_pps_size);
1375 bo_add_mem(avcC, i_pps_size, p_pps);
1381 /* TODO: No idea about these values */
1382 static bo_t *GetSVQ3Tag(mp4_stream_t *p_stream)
1384 bo_t *smi = box_new("SMI ");
1386 if (p_stream->fmt.i_extra > 0x4e) {
1387 uint8_t *p_end = &((uint8_t*)p_stream->fmt.p_extra)[p_stream->fmt.i_extra];
1388 uint8_t *p = &((uint8_t*)p_stream->fmt.p_extra)[0x46];
1390 while (p + 8 < p_end) {
1391 int i_size = GetDWBE(p);
1392 if (i_size <= 1) /* FIXME handle 1 as long size */
1394 if (!strncmp((const char *)&p[4], "SMI ", 4)) {
1395 bo_add_mem(smi, p_end - p - 8, &p[8]);
1402 /* Create a dummy one in fallback */
1403 bo_add_fourcc(smi, "SEQH");
1404 bo_add_32be(smi, 0x5);
1405 bo_add_32be(smi, 0xe2c0211d);
1406 bo_add_8(smi, 0xc0);
1411 static bo_t *GetUdtaTag(sout_mux_t *p_mux)
1413 sout_mux_sys_t *p_sys = p_mux->p_sys;
1414 bo_t *udta = box_new("udta");
1417 for (unsigned int i_track = 0; i_track < p_sys->i_nb_streams; i_track++) {
1418 mp4_stream_t *p_stream = p_sys->pp_streams[i_track];
1419 vlc_fourcc_t codec = p_stream->fmt.i_codec;
1421 if (codec == VLC_CODEC_MP4V || codec == VLC_CODEC_MP4A) {
1422 bo_t *box = box_new("\251req");
1424 bo_add_16be(box, sizeof("QuickTime 6.0 or greater") - 1);
1425 bo_add_16be(box, 0);
1426 bo_add_mem(box, sizeof("QuickTime 6.0 or greater") - 1,
1427 (uint8_t *)"QuickTime 6.0 or greater");
1428 box_gather(udta, box);
1435 bo_t *box = box_new("\251enc");
1437 bo_add_16be(box, sizeof(PACKAGE_STRING " stream output") - 1);
1438 bo_add_16be(box, 0);
1439 bo_add_mem(box, sizeof(PACKAGE_STRING " stream output") - 1,
1440 (uint8_t*)PACKAGE_STRING " stream output");
1441 box_gather(udta, box);
1445 vlc_meta_t *p_meta = p_mux->p_sout->p_meta;
1447 #define ADD_META_BOX(type, box_string) { \
1449 if (vlc_meta_Get(p_meta, vlc_meta_##type)) \
1450 box = box_new("\251" box_string); \
1452 bo_add_16be(box, strlen(vlc_meta_Get(p_meta, vlc_meta_##type))); \
1453 bo_add_16be(box, 0); \
1454 bo_add_mem(box, strlen(vlc_meta_Get(p_meta, vlc_meta_##type)), \
1455 (uint8_t*)(vlc_meta_Get(p_meta, vlc_meta_##type))); \
1456 box_gather(udta, box); \
1459 ADD_META_BOX(Title, "nam");
1460 ADD_META_BOX(Artist, "ART");
1461 ADD_META_BOX(Genre, "gen");
1462 ADD_META_BOX(Copyright, "cpy");
1463 ADD_META_BOX(Description, "des");
1464 ADD_META_BOX(Date, "day");
1465 ADD_META_BOX(URL, "url");
1472 static bo_t *GetSounBox(sout_mux_t *p_mux, mp4_stream_t *p_stream)
1474 sout_mux_sys_t *p_sys = p_mux->p_sys;
1475 bool b_descr = true;
1476 vlc_fourcc_t codec = p_stream->fmt.i_codec;
1479 if (codec == VLC_CODEC_MPGA) {
1482 memcpy(fcc, ".mp3", 4);
1484 memcpy(fcc, "mp4a", 4);
1485 } else if (codec == VLC_CODEC_A52) {
1486 memcpy(fcc, "ac-3", 4);
1487 } else if (codec == VLC_CODEC_EAC3) {
1488 memcpy(fcc, "ec-3", 4);
1490 vlc_fourcc_to_char(codec, fcc);
1492 bo_t *soun = box_new(fcc);
1493 for (int i = 0; i < 6; i++)
1494 bo_add_8(soun, 0); // reserved;
1495 bo_add_16be(soun, 1); // data-reference-index
1497 /* SoundDescription */
1498 if (p_sys->b_mov && codec == VLC_CODEC_MP4A)
1499 bo_add_16be(soun, 1); // version 1;
1501 bo_add_16be(soun, 0); // version 0;
1502 bo_add_16be(soun, 0); // revision level (0)
1503 bo_add_32be(soun, 0); // vendor
1505 bo_add_16be(soun, p_stream->fmt.audio.i_channels);
1507 bo_add_16be(soun, p_stream->fmt.audio.i_bitspersample ?
1508 p_stream->fmt.audio.i_bitspersample : 16);
1509 bo_add_16be(soun, -2); // compression id
1510 bo_add_16be(soun, 0); // packet size (0)
1511 bo_add_16be(soun, p_stream->fmt.audio.i_rate); // sampleratehi
1512 bo_add_16be(soun, 0); // sampleratelo
1514 /* Extended data for SoundDescription V1 */
1515 if (p_sys->b_mov && p_stream->fmt.i_codec == VLC_CODEC_MP4A) {
1516 /* samples per packet */
1517 bo_add_32be(soun, p_stream->fmt.audio.i_frame_length);
1518 bo_add_32be(soun, 1536); /* bytes per packet */
1519 bo_add_32be(soun, 2); /* bytes per frame */
1520 /* bytes per sample */
1521 bo_add_32be(soun, 2 /*p_stream->fmt.audio.i_bitspersample/8 */);
1524 /* Add an ES Descriptor */
1528 if (p_sys->b_mov && codec == VLC_CODEC_MP4A)
1529 box = GetWaveTag(p_stream);
1530 else if (codec == VLC_CODEC_AMR_NB)
1531 box = GetDamrTag(p_stream);
1532 else if (codec == VLC_CODEC_A52)
1533 box = GetDac3Tag(p_stream);
1534 else if (codec == VLC_CODEC_EAC3)
1535 box = GetDec3Tag(p_stream);
1537 box = GetESDS(p_stream);
1540 box_gather(soun, box);
1546 static bo_t *GetVideBox(mp4_stream_t *p_stream)
1550 switch(p_stream->fmt.i_codec)
1552 case VLC_CODEC_MP4V:
1553 case VLC_CODEC_MPGV: memcpy(fcc, "mp4v", 4); break;
1554 case VLC_CODEC_MJPG: memcpy(fcc, "mjpa", 4); break;
1555 case VLC_CODEC_SVQ1: memcpy(fcc, "SVQ1", 4); break;
1556 case VLC_CODEC_SVQ3: memcpy(fcc, "SVQ3", 4); break;
1557 case VLC_CODEC_H263: memcpy(fcc, "s263", 4); break;
1558 case VLC_CODEC_H264: memcpy(fcc, "avc1", 4); break;
1559 case VLC_CODEC_HEVC: memcpy(fcc, "hvc1", 4); break;
1560 case VLC_CODEC_YV12: memcpy(fcc, "yv12", 4); break;
1561 case VLC_CODEC_YUYV: memcpy(fcc, "yuy2", 4); break;
1563 vlc_fourcc_to_char(p_stream->fmt.i_codec, fcc);
1567 bo_t *vide = box_new(fcc);
1568 for (int i = 0; i < 6; i++)
1569 bo_add_8(vide, 0); // reserved;
1570 bo_add_16be(vide, 1); // data-reference-index
1572 bo_add_16be(vide, 0); // predefined;
1573 bo_add_16be(vide, 0); // reserved;
1574 for (int i = 0; i < 3; i++)
1575 bo_add_32be(vide, 0); // predefined;
1577 bo_add_16be(vide, p_stream->fmt.video.i_width); // i_width
1578 bo_add_16be(vide, p_stream->fmt.video.i_height); // i_height
1580 bo_add_32be(vide, 0x00480000); // h 72dpi
1581 bo_add_32be(vide, 0x00480000); // v 72dpi
1583 bo_add_32be(vide, 0); // data size, always 0
1584 bo_add_16be(vide, 1); // frames count per sample
1587 for (int i = 0; i < 32; i++)
1590 bo_add_16be(vide, 0x18); // depth
1591 bo_add_16be(vide, 0xffff); // predefined
1593 /* add an ES Descriptor */
1594 switch(p_stream->fmt.i_codec)
1596 case VLC_CODEC_MP4V:
1597 case VLC_CODEC_MPGV:
1598 box_gather(vide, GetESDS(p_stream));
1601 case VLC_CODEC_H263:
1602 box_gather(vide, GetD263Tag());
1605 case VLC_CODEC_SVQ3:
1606 box_gather(vide, GetSVQ3Tag(p_stream));
1609 case VLC_CODEC_H264:
1610 box_gather(vide, GetAvcCTag(p_stream));
1613 case VLC_CODEC_HEVC:
1614 box_gather(vide, GetHvcCTag(p_stream));
1621 static bo_t *GetTextBox(void)
1623 bo_t *text = box_new("text");
1625 for (int i = 0; i < 6; i++)
1626 bo_add_8(text, 0); // reserved;
1627 bo_add_16be(text, 1); // data-reference-index
1629 bo_add_32be(text, 0); // display flags
1630 bo_add_32be(text, 0); // justification
1631 for (int i = 0; i < 3; i++)
1632 bo_add_16be(text, 0); // back ground color
1634 bo_add_16be(text, 0); // box text
1635 bo_add_16be(text, 0); // box text
1636 bo_add_16be(text, 0); // box text
1637 bo_add_16be(text, 0); // box text
1639 bo_add_64be(text, 0); // reserved
1640 for (int i = 0; i < 3; i++)
1641 bo_add_16be(text, 0xff); // foreground color
1644 bo_add_mem(text, 9, (uint8_t*)"Helvetica");
1649 static bo_t *GetStblBox(sout_mux_t *p_mux, mp4_stream_t *p_stream)
1651 sout_mux_sys_t *p_sys = p_mux->p_sys;
1653 /* sample description */
1654 bo_t *stsd = box_full_new("stsd", 0, 0);
1655 bo_add_32be(stsd, 1);
1656 if (p_stream->fmt.i_cat == AUDIO_ES)
1657 box_gather(stsd, GetSounBox(p_mux, p_stream));
1658 else if (p_stream->fmt.i_cat == VIDEO_ES)
1659 box_gather(stsd, GetVideBox(p_stream));
1660 else if (p_stream->fmt.i_cat == SPU_ES)
1661 box_gather(stsd, GetTextBox());
1663 /* chunk offset table */
1665 if (p_sys->i_pos >= (((uint64_t)0x1) << 32)) {
1666 /* 64 bits version */
1667 p_stream->b_stco64 = true;
1668 stco = box_full_new("co64", 0, 0);
1670 /* 32 bits version */
1671 p_stream->b_stco64 = false;
1672 stco = box_full_new("stco", 0, 0);
1674 bo_add_32be(stco, 0); // entry-count (fixed latter)
1676 /* sample to chunk table */
1677 bo_t *stsc = box_full_new("stsc", 0, 0);
1678 bo_add_32be(stsc, 0); // entry-count (fixed latter)
1680 unsigned i_chunk = 0;
1681 unsigned i_stsc_last_val = 0, i_stsc_entries = 0;
1682 for (unsigned i = 0; i < p_stream->i_entry_count; i_chunk++) {
1683 mp4_entry_t *entry = p_stream->entry;
1686 if (p_stream->b_stco64)
1687 bo_add_64be(stco, entry[i].i_pos);
1689 bo_add_32be(stco, entry[i].i_pos);
1691 for (; i < p_stream->i_entry_count; i++)
1692 if (i >= p_stream->i_entry_count - 1 ||
1693 entry[i].i_pos + entry[i].i_size != entry[i+1].i_pos) {
1698 /* Add entry to the stsc table */
1699 if (i_stsc_last_val != i - i_first) {
1700 bo_add_32be(stsc, 1 + i_chunk); // first-chunk
1701 bo_add_32be(stsc, i - i_first) ; // samples-per-chunk
1702 bo_add_32be(stsc, 1); // sample-descr-index
1703 i_stsc_last_val = i - i_first;
1708 /* Fix stco entry count */
1709 bo_swap_32be(stco, 12, i_chunk);
1710 msg_Dbg(p_mux, "created %d chunks (stco)", i_chunk);
1712 /* Fix stsc entry count */
1713 bo_swap_32be(stsc, 12, i_stsc_entries );
1716 bo_t *stts = box_full_new("stts", 0, 0);
1717 bo_add_32be(stts, 0); // entry-count (fixed latter)
1719 unsigned i_index = 0;
1720 for (unsigned i = 0; i < p_stream->i_entry_count; i_index++) {
1722 mtime_t i_delta = p_stream->entry[i].i_length;
1724 for (; i < p_stream->i_entry_count; ++i)
1725 if (i == p_stream->i_entry_count || p_stream->entry[i].i_length != i_delta)
1728 bo_add_32be(stts, i - i_first); // sample-count
1729 bo_add_32be(stts, (uint64_t)i_delta * p_stream->i_timescale / CLOCK_FREQ); // sample-delta
1731 bo_swap_32be(stts, 12, i_index);
1733 /* composition time handling */
1735 if ( p_stream->b_hasbframes && (ctts = box_full_new("ctts", 0, 0)) )
1737 bo_add_32be(ctts, 0);
1739 for (unsigned i = 0; i < p_stream->i_entry_count; i_index++)
1742 mtime_t i_offset = p_stream->entry[i].i_pts_dts;
1744 for (; i < p_stream->i_entry_count; ++i)
1745 if (i == p_stream->i_entry_count || p_stream->entry[i].i_pts_dts != i_offset)
1748 bo_add_32be(ctts, i - i_first); // sample-count
1749 bo_add_32be(ctts, i_offset * p_stream->i_timescale / CLOCK_FREQ ); // sample-offset
1751 bo_swap_32be(ctts, 12, i_index);
1754 bo_t *stsz = box_full_new("stsz", 0, 0);
1756 for (unsigned i = 0; i < p_stream->i_entry_count; i++)
1759 i_size = p_stream->entry[i].i_size;
1760 else if ( p_stream->entry[i].i_size != i_size )
1766 bo_add_32be(stsz, i_size); // sample-size
1767 bo_add_32be(stsz, p_stream->i_entry_count); // sample-count
1768 if ( i_size == 0 ) // all samples have different size
1770 for (unsigned i = 0; i < p_stream->i_entry_count; i++)
1771 bo_add_32be(stsz, p_stream->entry[i].i_size); // sample-size
1774 /* create stss table */
1777 if ( p_stream->fmt.i_cat == VIDEO_ES || p_stream->fmt.i_cat == AUDIO_ES )
1779 mtime_t i_interval = -1;
1780 for (unsigned i = 0; i < p_stream->i_entry_count; i++)
1782 if ( i_interval != -1 )
1784 i_interval += p_stream->entry[i].i_length + p_stream->entry[i].i_pts_dts;
1785 if ( i_interval < CLOCK_FREQ * 2 )
1789 if (p_stream->entry[i].i_flags & BLOCK_FLAG_TYPE_I) {
1791 stss = box_full_new("stss", 0, 0);
1792 bo_add_32be(stss, 0); /* fixed later */
1794 bo_add_32be(stss, 1 + i);
1802 bo_swap_32be(stss, 12, i_index);
1804 /* Now gather all boxes into stbl */
1805 bo_t *stbl = box_new("stbl");
1807 box_gather(stbl, stsd);
1808 box_gather(stbl, stts);
1810 box_gather(stbl, stss);
1812 box_gather(stbl, ctts);
1813 box_gather(stbl, stsc);
1814 box_gather(stbl, stsz);
1815 p_stream->i_stco_pos = stbl->len + 16;
1816 box_gather(stbl, stco);
1821 static int64_t get_timestamp(void);
1823 static void matrix_apply_rotation(es_format_t *fmt, uint32_t mvhd_matrix[9])
1825 enum video_orientation_t orientation = ORIENT_NORMAL;
1826 if (fmt->i_cat == VIDEO_ES)
1827 orientation = fmt->video.orientation;
1829 #define ATAN(a, b) do { mvhd_matrix[1] = (a) << 16; \
1830 mvhd_matrix[0] = (b) << 16; \
1833 switch (orientation) {
1834 case ORIENT_ROTATED_90: ATAN( 1, 0); break;
1835 case ORIENT_ROTATED_180: ATAN( 0, -1); break;
1836 case ORIENT_ROTATED_270: ATAN( -1, 0); break;
1837 default: ATAN( 0, 1); break;
1840 mvhd_matrix[3] = mvhd_matrix[0] ? 0 : 0x10000;
1841 mvhd_matrix[4] = mvhd_matrix[1] ? 0 : 0x10000;
1844 static bo_t *GetMoovBox(sout_mux_t *p_mux)
1846 sout_mux_sys_t *p_sys = p_mux->p_sys;
1850 uint32_t i_movie_timescale = 90000;
1851 int64_t i_movie_duration = 0;
1852 int64_t i_timestamp = get_timestamp();
1854 moov = box_new("moov");
1856 /* Create general info */
1857 if ( !p_sys->b_fragmented )
1859 for (unsigned int i_trak = 0; i_trak < p_sys->i_nb_streams; i_trak++) {
1860 mp4_stream_t *p_stream = p_sys->pp_streams[i_trak];
1861 i_movie_duration = __MAX(i_movie_duration, p_stream->i_read_duration);
1863 msg_Dbg(p_mux, "movie duration %"PRId64"s", i_movie_duration / CLOCK_FREQ);
1865 i_movie_duration = i_movie_duration * i_movie_timescale / CLOCK_FREQ;
1868 i_movie_duration = 0;
1870 /* *** add /moov/mvhd *** */
1871 if (!p_sys->b_64_ext) {
1872 mvhd = box_full_new("mvhd", 0, 0);
1873 bo_add_32be(mvhd, i_timestamp); // creation time
1874 bo_add_32be(mvhd, i_timestamp); // modification time
1875 bo_add_32be(mvhd, i_movie_timescale); // timescale
1876 bo_add_32be(mvhd, i_movie_duration); // duration
1878 mvhd = box_full_new("mvhd", 1, 0);
1879 bo_add_64be(mvhd, i_timestamp); // creation time
1880 bo_add_64be(mvhd, i_timestamp); // modification time
1881 bo_add_32be(mvhd, i_movie_timescale); // timescale
1882 bo_add_64be(mvhd, i_movie_duration); // duration
1884 bo_add_32be(mvhd, 0x10000); // rate
1885 bo_add_16be(mvhd, 0x100); // volume
1886 bo_add_16be(mvhd, 0); // reserved
1887 for (int i = 0; i < 2; i++)
1888 bo_add_32be(mvhd, 0); // reserved
1890 uint32_t mvhd_matrix[9] = { 0x10000, 0, 0, 0, 0x10000, 0, 0, 0, 0x40000000 };
1892 for (int i = 0; i < 9; i++)
1893 bo_add_32be(mvhd, mvhd_matrix[i]);// matrix
1894 for (int i = 0; i < 6; i++)
1895 bo_add_32be(mvhd, 0); // pre-defined
1897 /* Next available track id */
1898 bo_add_32be(mvhd, p_sys->i_nb_streams + 1); // next-track-id
1900 box_gather(moov, mvhd);
1902 for (unsigned int i_trak = 0; i_trak < p_sys->i_nb_streams; i_trak++) {
1903 mp4_stream_t *p_stream = p_sys->pp_streams[i_trak];
1905 mtime_t i_stream_duration;
1906 if ( !p_sys->b_fragmented )
1907 i_stream_duration = p_stream->i_read_duration * i_movie_timescale / CLOCK_FREQ;
1909 i_stream_duration = 0;
1911 /* *** add /moov/trak *** */
1912 bo_t *trak = box_new("trak");
1914 /* *** add /moov/trak/tkhd *** */
1916 if (!p_sys->b_64_ext) {
1918 tkhd = box_full_new("tkhd", 0, 0x0f);
1920 tkhd = box_full_new("tkhd", 0, 1);
1922 bo_add_32be(tkhd, i_timestamp); // creation time
1923 bo_add_32be(tkhd, i_timestamp); // modification time
1924 bo_add_32be(tkhd, p_stream->i_track_id);
1925 bo_add_32be(tkhd, 0); // reserved 0
1926 bo_add_32be(tkhd, i_stream_duration); // duration
1929 tkhd = box_full_new("tkhd", 1, 0x0f);
1931 tkhd = box_full_new("tkhd", 1, 1);
1933 bo_add_64be(tkhd, i_timestamp); // creation time
1934 bo_add_64be(tkhd, i_timestamp); // modification time
1935 bo_add_32be(tkhd, p_stream->i_track_id);
1936 bo_add_32be(tkhd, 0); // reserved 0
1937 bo_add_64be(tkhd, i_stream_duration); // duration
1940 for (int i = 0; i < 2; i++)
1941 bo_add_32be(tkhd, 0); // reserved
1942 bo_add_16be(tkhd, 0); // layer
1943 bo_add_16be(tkhd, 0); // pre-defined
1945 bo_add_16be(tkhd, p_stream->fmt.i_cat == AUDIO_ES ? 0x100 : 0);
1946 bo_add_16be(tkhd, 0); // reserved
1947 matrix_apply_rotation(&p_stream->fmt, mvhd_matrix);
1948 for (int i = 0; i < 9; i++)
1949 bo_add_32be(tkhd, mvhd_matrix[i]); // matrix
1950 if (p_stream->fmt.i_cat == AUDIO_ES) {
1951 bo_add_32be(tkhd, 0); // width (presentation)
1952 bo_add_32be(tkhd, 0); // height(presentation)
1953 } else if (p_stream->fmt.i_cat == VIDEO_ES) {
1954 int i_width = p_stream->fmt.video.i_width << 16;
1955 if (p_stream->fmt.video.i_sar_num > 0 && p_stream->fmt.video.i_sar_den > 0) {
1956 i_width = (int64_t)p_stream->fmt.video.i_sar_num *
1957 ((int64_t)p_stream->fmt.video.i_width << 16) /
1958 p_stream->fmt.video.i_sar_den;
1960 // width (presentation)
1961 bo_add_32be(tkhd, i_width);
1962 // height(presentation)
1963 bo_add_32be(tkhd, p_stream->fmt.video.i_height << 16);
1965 int i_width = 320 << 16;
1967 for (unsigned int i = 0; i < p_sys->i_nb_streams; i++) {
1968 mp4_stream_t *tk = p_sys->pp_streams[i];
1969 if (tk->fmt.i_cat == VIDEO_ES) {
1970 if (tk->fmt.video.i_sar_num > 0 &&
1971 tk->fmt.video.i_sar_den > 0)
1972 i_width = (int64_t)tk->fmt.video.i_sar_num *
1973 ((int64_t)tk->fmt.video.i_width << 16) /
1974 tk->fmt.video.i_sar_den;
1976 i_width = tk->fmt.video.i_width << 16;
1977 i_height = tk->fmt.video.i_height;
1981 bo_add_32be(tkhd, i_width); // width (presentation)
1982 bo_add_32be(tkhd, i_height << 16); // height(presentation)
1985 box_gather(trak, tkhd);
1987 /* *** add /moov/trak/edts and elst */
1988 if ( !p_sys->b_fragmented )
1990 bo_t *edts = box_new("edts");
1991 bo_t *elst = box_full_new("elst", p_sys->b_64_ext ? 1 : 0, 0);
1992 if (p_stream->i_starttime > 0) {
1993 bo_add_32be(elst, 2);
1995 if (p_sys->b_64_ext) {
1996 bo_add_64be(elst, p_stream->i_starttime *
1997 i_movie_timescale / CLOCK_FREQ);
1998 bo_add_64be(elst, -1);
2000 bo_add_32be(elst, p_stream->i_starttime *
2001 i_movie_timescale / CLOCK_FREQ);
2002 bo_add_32be(elst, -1);
2004 bo_add_16be(elst, 1);
2005 bo_add_16be(elst, 0);
2007 bo_add_32be(elst, 1);
2009 if (p_sys->b_64_ext) {
2010 bo_add_64be(elst, p_stream->i_read_duration *
2011 i_movie_timescale / CLOCK_FREQ);
2012 bo_add_64be(elst, 0);
2014 bo_add_32be(elst, p_stream->i_read_duration *
2015 i_movie_timescale / CLOCK_FREQ);
2016 bo_add_32be(elst, 0);
2018 bo_add_16be(elst, 1);
2019 bo_add_16be(elst, 0);
2021 box_gather(edts, elst);
2022 box_gather(trak, edts);
2025 /* *** add /moov/trak/mdia *** */
2026 bo_t *mdia = box_new("mdia");
2030 if (!p_sys->b_64_ext) {
2031 mdhd = box_full_new("mdhd", 0, 0);
2032 bo_add_32be(mdhd, i_timestamp); // creation time
2033 bo_add_32be(mdhd, i_timestamp); // modification time
2034 bo_add_32be(mdhd, p_stream->i_timescale); // timescale
2035 bo_add_32be(mdhd, i_stream_duration); // duration
2037 mdhd = box_full_new("mdhd", 1, 0);
2038 bo_add_64be(mdhd, i_timestamp); // creation time
2039 bo_add_64be(mdhd, i_timestamp); // modification time
2040 bo_add_32be(mdhd, p_stream->i_timescale); // timescale
2041 bo_add_64be(mdhd, i_stream_duration); // duration
2044 if (p_stream->fmt.psz_language) {
2045 char *psz = p_stream->fmt.psz_language;
2046 const iso639_lang_t *pl = NULL;
2047 uint16_t lang = 0x0;
2049 if (strlen(psz) == 2)
2050 pl = GetLang_1(psz);
2051 else if (strlen(psz) == 3) {
2052 pl = GetLang_2B(psz);
2053 if (!strcmp(pl->psz_iso639_1, "??"))
2054 pl = GetLang_2T(psz);
2057 if (pl && strcmp(pl->psz_iso639_1, "??"))
2058 lang = ((pl->psz_iso639_2T[0] - 0x60) << 10) |
2059 ((pl->psz_iso639_2T[1] - 0x60) << 5) |
2060 ((pl->psz_iso639_2T[2] - 0x60));
2061 bo_add_16be(mdhd, lang); // language
2063 bo_add_16be(mdhd, 0 ); // language
2064 bo_add_16be(mdhd, 0 ); // predefined
2065 box_gather(mdia, mdhd);
2067 /* handler reference */
2068 bo_t *hdlr = box_full_new("hdlr", 0, 0);
2071 bo_add_fourcc(hdlr, "mhlr"); // media handler
2073 bo_add_32be(hdlr, 0);
2075 if (p_stream->fmt.i_cat == AUDIO_ES)
2076 bo_add_fourcc(hdlr, "soun");
2077 else if (p_stream->fmt.i_cat == VIDEO_ES)
2078 bo_add_fourcc(hdlr, "vide");
2079 else if (p_stream->fmt.i_cat == SPU_ES)
2080 bo_add_fourcc(hdlr, "text");
2082 bo_add_32be(hdlr, 0); // reserved
2083 bo_add_32be(hdlr, 0); // reserved
2084 bo_add_32be(hdlr, 0); // reserved
2087 bo_add_8(hdlr, 12); /* Pascal string for .mov */
2089 if (p_stream->fmt.i_cat == AUDIO_ES)
2090 bo_add_mem(hdlr, 12, (uint8_t*)"SoundHandler");
2091 else if (p_stream->fmt.i_cat == VIDEO_ES)
2092 bo_add_mem(hdlr, 12, (uint8_t*)"VideoHandler");
2094 bo_add_mem(hdlr, 12, (uint8_t*)"Text Handler");
2097 bo_add_8(hdlr, 0); /* asciiz string for .mp4, yes that's BRAIN DAMAGED F**K MP4 */
2099 box_gather(mdia, hdlr);
2102 bo_t *minf = box_new("minf");
2105 if (p_stream->fmt.i_cat == AUDIO_ES) {
2108 smhd = box_full_new("smhd", 0, 0);
2109 bo_add_16be(smhd, 0); // balance
2110 bo_add_16be(smhd, 0); // reserved
2112 box_gather(minf, smhd);
2113 } else if (p_stream->fmt.i_cat == VIDEO_ES) {
2116 vmhd = box_full_new("vmhd", 0, 1);
2117 bo_add_16be(vmhd, 0); // graphicsmode
2118 for (int i = 0; i < 3; i++)
2119 bo_add_16be(vmhd, 0); // opcolor
2121 box_gather(minf, vmhd);
2122 } else if (p_stream->fmt.i_cat == SPU_ES) {
2123 bo_t *gmhd = box_new("gmhd");
2124 bo_t *gmin = box_full_new("gmin", 0, 1);
2126 bo_add_16be(gmin, 0); // graphicsmode
2127 for (int i = 0; i < 3; i++)
2128 bo_add_16be(gmin, 0); // opcolor
2129 bo_add_16be(gmin, 0); // balance
2130 bo_add_16be(gmin, 0); // reserved
2132 box_gather(gmhd, gmin);
2134 box_gather(minf, gmhd);
2138 bo_t *dinf = box_new("dinf");
2139 bo_t *dref = box_full_new("dref", 0, 0);
2140 bo_add_32be(dref, 1);
2141 bo_t *url = box_full_new("url ", 0, 0x01);
2142 box_gather(dref, url);
2143 box_gather(dinf, dref);
2145 /* append dinf to mdia */
2146 box_gather(minf, dinf);
2150 if ( p_sys->b_fragmented )
2152 uint32_t i_backup = p_stream->i_entry_count;
2153 p_stream->i_entry_count = 0;
2154 stbl = GetStblBox(p_mux, p_stream);
2155 p_stream->i_entry_count = i_backup;
2158 stbl = GetStblBox(p_mux, p_stream);
2160 /* append stbl to minf */
2161 p_stream->i_stco_pos += minf->len;
2162 box_gather(minf, stbl);
2164 /* append minf to mdia */
2165 p_stream->i_stco_pos += mdia->len;
2166 box_gather(mdia, minf);
2168 /* append mdia to trak */
2169 p_stream->i_stco_pos += trak->len;
2170 box_gather(trak, mdia);
2172 /* append trak to moov */
2173 p_stream->i_stco_pos += moov->len;
2174 box_gather(moov, trak);
2177 /* Add user data tags */
2178 box_gather(moov, GetUdtaTag(p_mux));
2180 if ( p_sys->b_fragmented )
2182 bo_t *mvex = box_new("mvex");
2183 for (unsigned int i_trak = 0; i_trak < p_sys->i_nb_streams; i_trak++)
2185 mp4_stream_t *p_stream = p_sys->pp_streams[i_trak];
2187 /* Try to find some defaults */
2188 if ( p_stream->i_entry_count )
2190 // FIXME: find highest occurence
2191 p_stream->i_trex_length = p_stream->entry[0].i_length;
2192 p_stream->i_trex_size = p_stream->entry[0].i_size;
2195 /* *** add /mvex/trex *** */
2196 bo_t *trex = box_full_new("trex", 0, 0);
2197 bo_add_32be(trex, p_stream->i_track_id);
2198 bo_add_32be(trex, 1); // sample desc index
2199 bo_add_32be(trex, (uint64_t)p_stream->i_trex_length * p_stream->i_timescale / CLOCK_FREQ); // sample duration
2200 bo_add_32be(trex, p_stream->i_trex_size); // sample size
2201 bo_add_32be(trex, 0); // sample flags
2202 box_gather(mvex, trex);
2204 box_gather(moov, mvex);
2211 /****************************************************************************/
2213 static bo_t *box_new(const char *fcc)
2215 bo_t *box = malloc(sizeof(*box));
2221 bo_add_32be (box, 0);
2222 bo_add_fourcc(box, fcc);
2227 static bo_t *box_full_new(const char *fcc, uint8_t v, uint32_t f)
2229 bo_t *box = box_new(fcc);
2234 bo_add_24be (box, f);
2239 static void box_free(bo_t *box)
2241 block_Release(box->b);
2245 static void box_fix(bo_t *box)
2247 box->b->p_buffer[0] = box->len >> 24;
2248 box->b->p_buffer[1] = box->len >> 16;
2249 box->b->p_buffer[2] = box->len >> 8;
2250 box->b->p_buffer[3] = box->len;
2253 static void box_gather (bo_t *box, bo_t *box2)
2256 box->b = block_Realloc(box->b, 0, box->len + box2->len);
2257 memcpy(&box->b->p_buffer[box->len], box2->b->p_buffer, box2->len);
2258 box->len += box2->len;
2262 static void box_send(sout_mux_t *p_mux, bo_t *box)
2264 box->b->i_buffer = box->len;
2265 sout_AccessOutWrite(p_mux->p_access, box->b);
2269 static int64_t get_timestamp(void)
2271 int64_t i_timestamp = time(NULL);
2273 i_timestamp += 2082844800; // MOV/MP4 start date is 1/1/1904
2274 // 208284480 is (((1970 - 1904) * 365) + 17) * 24 * 60 * 60
2279 /***************************************************************************
2281 ****************************************************************************/
2282 #define FRAGMENT_LENGTH (CLOCK_FREQ * 3/2)
2284 #define ENQUEUE_ENTRY(object, entry) \
2287 object.p_last->p_next = entry;\
2288 object.p_last = entry;\
2289 if (!object.p_first)\
2290 object.p_first = entry;\
2293 #define DEQUEUE_ENTRY(object, entry) \
2295 entry = object.p_first;\
2296 if (object.p_last == entry)\
2297 object.p_last = NULL;\
2298 object.p_first = object.p_first->p_next;\
2299 entry->p_next = NULL;\
2302 /* Creates mfra/traf index entries */
2303 static void AddKeyframeEntry(mp4_stream_t *p_stream, const uint64_t i_moof_pos,
2304 const uint8_t i_traf, const uint32_t i_sample,
2305 const mtime_t i_time)
2307 /* alloc or realloc */
2308 mp4_fragindex_t *p_entries = p_stream->p_indexentries;
2309 if (p_stream->i_indexentries >= p_stream->i_indexentriesmax)
2311 p_stream->i_indexentriesmax += 256;
2312 p_entries = xrealloc(p_stream->p_indexentries,
2313 p_stream->i_indexentriesmax * sizeof(mp4_fragindex_t));
2314 if (p_entries) /* realloc can fail */
2315 p_stream->p_indexentries = p_entries;
2318 mtime_t i_last_entry_time;
2319 if (p_stream->i_indexentries)
2320 i_last_entry_time = p_stream->p_indexentries[p_stream->i_indexentries - 1].i_time;
2322 i_last_entry_time = 0;
2324 if (p_entries && i_time - i_last_entry_time >= CLOCK_FREQ * 2)
2326 mp4_fragindex_t *p_indexentry = &p_stream->p_indexentries[p_stream->i_indexentries];
2327 p_indexentry->i_time = i_time;
2328 p_indexentry->i_moofoffset = i_moof_pos;
2329 p_indexentry->i_sample = i_sample;
2330 p_indexentry->i_traf = i_traf;
2331 p_indexentry->i_trun = 1;
2332 p_stream->i_indexentries++;
2336 /* Creates moof box and traf/trun information.
2337 * Single run per traf is absolutely not optimal as interleaving should be done
2338 * using runs and not limiting moof size, but creating an relative offset only
2339 * requires base_offset_is_moof and then comply to late iso brand spec which
2340 * breaks clients. */
2341 static bo_t *GetMoofBox(sout_mux_t *p_mux, size_t *pi_mdat_total_size,
2342 mtime_t i_barrier_time, const uint64_t i_write_pos)
2344 sout_mux_sys_t *p_sys = p_mux->p_sys;
2347 size_t i_fixupoffset = 0;
2349 *pi_mdat_total_size = 0;
2351 moof = box_new("moof");
2353 /* *** add /moof/mfhd *** */
2355 mfhd = box_full_new("mfhd", 0, 0);
2356 bo_add_32be(mfhd, p_sys->i_mfhd_sequence++); // sequence number
2358 box_gather(moof, mfhd);
2360 for (unsigned int i_trak = 0; i_trak < p_sys->i_nb_streams; i_trak++)
2362 mp4_stream_t *p_stream = p_sys->pp_streams[i_trak];
2364 /* *** add /moof/traf *** */
2365 bo_t *traf = box_new("traf");
2367 uint32_t i_sample = 0;
2368 mtime_t i_time = p_stream->i_written_duration;
2369 bool b_allsamesize = true;
2370 bool b_allsamelength = true;
2371 if ( p_stream->read.p_first )
2373 mp4_fragentry_t *p_entry = p_stream->read.p_first->p_next;
2374 while (p_entry && (b_allsamelength || b_allsamesize))
2376 /* compare against queue head */
2377 b_allsamelength &= ( p_entry->p_block->i_length == p_stream->read.p_first->p_block->i_length );
2378 b_allsamesize &= ( p_entry->p_block->i_buffer == p_stream->read.p_first->p_block->i_buffer );
2379 p_entry = p_entry->p_next;
2383 uint32_t i_tfhd_flags = 0x0;
2384 if (p_stream->read.p_first)
2386 /* Current segment have all same duration value, different than trex's default */
2387 if (b_allsamelength &&
2388 p_stream->read.p_first->p_block->i_length != p_stream->i_trex_length &&
2389 p_stream->read.p_first->p_block->i_length)
2390 i_tfhd_flags |= MP4_TFHD_DFLT_SAMPLE_DURATION;
2392 /* Current segment have all same size value, different than trex's default */
2393 if (b_allsamesize &&
2394 p_stream->read.p_first->p_block->i_buffer != p_stream->i_trex_size &&
2395 p_stream->read.p_first->p_block->i_buffer)
2396 i_tfhd_flags |= MP4_TFHD_DFLT_SAMPLE_SIZE;
2400 /* We have no samples */
2401 i_tfhd_flags |= MP4_TFHD_DURATION_IS_EMPTY;
2404 /* *** add /moof/traf/tfhd *** */
2405 bo_t *tfhd = box_full_new("tfhd", 0, i_tfhd_flags);
2406 bo_add_32be(tfhd, p_stream->i_track_id);
2408 /* set the local sample duration default */
2409 if (i_tfhd_flags & MP4_TFHD_DFLT_SAMPLE_DURATION)
2410 bo_add_32be(tfhd, p_stream->read.p_first->p_block->i_length * p_stream->i_timescale / CLOCK_FREQ);
2412 /* set the local sample size default */
2413 if (i_tfhd_flags & MP4_TFHD_DFLT_SAMPLE_SIZE)
2414 bo_add_32be(tfhd, p_stream->read.p_first->p_block->i_buffer);
2416 box_gather(traf, tfhd);
2418 /* *** add /moof/traf/tfdt *** */
2419 bo_t *tfdt = box_full_new("tfdt", 1, 0);
2420 bo_add_64be(tfdt, p_stream->i_written_duration * p_stream->i_timescale / CLOCK_FREQ );
2421 box_gather(traf, tfdt);
2423 /* *** add /moof/traf/trun *** */
2424 if (p_stream->read.p_first)
2426 uint32_t i_trun_flags = 0x0;
2428 if (p_stream->b_hasiframes && !(p_stream->read.p_first->p_block->i_flags & BLOCK_FLAG_TYPE_I))
2429 i_trun_flags |= MP4_TRUN_FIRST_FLAGS;
2431 if (!b_allsamelength ||
2432 ( !(i_tfhd_flags & MP4_TFHD_DFLT_SAMPLE_DURATION) && p_stream->i_trex_length == 0 ))
2433 i_trun_flags |= MP4_TRUN_SAMPLE_DURATION;
2435 if (!b_allsamesize ||
2436 ( !(i_tfhd_flags & MP4_TFHD_DFLT_SAMPLE_SIZE) && p_stream->i_trex_size == 0 ))
2437 i_trun_flags |= MP4_TRUN_SAMPLE_SIZE;
2439 if (p_stream->b_hasbframes)
2440 i_trun_flags |= MP4_TRUN_SAMPLE_TIME_OFFSET;
2442 if (i_fixupoffset == 0)
2443 i_trun_flags |= MP4_TRUN_DATA_OFFSET;
2445 bo_t *trun = box_full_new("trun", 0, i_trun_flags);
2448 uint32_t i_entry_count = 0;
2449 mtime_t i_run_time = p_stream->i_written_duration;
2450 mp4_fragentry_t *p_entry = p_stream->read.p_first;
2453 if ( i_barrier_time && i_run_time + p_entry->p_block->i_length > i_barrier_time )
2456 i_run_time += p_entry->p_block->i_length;
2457 p_entry = p_entry->p_next;
2459 bo_add_32be(trun, i_entry_count); // sample count
2461 if (i_trun_flags & MP4_TRUN_DATA_OFFSET)
2463 i_fixupoffset = moof->len + traf->len + trun->len;
2464 bo_add_32be(trun, 0xdeadbeef); // data offset
2467 if (i_trun_flags & MP4_TRUN_FIRST_FLAGS)
2468 bo_add_32be(trun, 1<<16); // flag as non keyframe
2470 while(p_stream->read.p_first && i_entry_count)
2472 DEQUEUE_ENTRY(p_stream->read, p_entry);
2474 if (i_trun_flags & MP4_TRUN_SAMPLE_DURATION)
2475 bo_add_32be(trun, p_entry->p_block->i_length * p_stream->i_timescale / CLOCK_FREQ); // sample duration
2477 if (i_trun_flags & MP4_TRUN_SAMPLE_SIZE)
2478 bo_add_32be(trun, p_entry->p_block->i_buffer); // sample size
2480 if (i_trun_flags & MP4_TRUN_SAMPLE_TIME_OFFSET)
2482 uint32_t i_diff = 0;
2483 if ( p_entry->p_block->i_dts > VLC_TS_INVALID &&
2484 p_entry->p_block->i_pts > p_entry->p_block->i_dts )
2486 i_diff = p_entry->p_block->i_pts - p_entry->p_block->i_dts;
2488 bo_add_32be(trun, i_diff * p_stream->i_timescale / CLOCK_FREQ); // ctts
2491 *pi_mdat_total_size += p_entry->p_block->i_buffer;
2493 ENQUEUE_ENTRY(p_stream->towrite, p_entry);
2497 /* Add keyframe entry if needed */
2498 if (p_stream->b_hasiframes && (p_entry->p_block->i_flags & BLOCK_FLAG_TYPE_I) &&
2499 (p_stream->fmt.i_cat == VIDEO_ES || p_stream->fmt.i_cat == AUDIO_ES))
2501 AddKeyframeEntry(p_stream, i_write_pos, i_trak, i_sample, i_time);
2504 i_time += p_entry->p_block->i_length;
2507 box_gather(traf, trun);
2510 box_gather(moof, traf);
2515 /* do tfhd base data offset fixup */
2518 /* mdat will follow moof */
2519 SetDWBE(moof->b->p_buffer + i_fixupoffset, moof->len + 8);
2522 /* set iframe flag, so the streaming server always starts from moof */
2523 moof->b->i_flags |= BLOCK_FLAG_TYPE_I;
2528 static void WriteFragmentMDAT(sout_mux_t *p_mux, size_t i_total_size)
2530 sout_mux_sys_t *p_sys = p_mux->p_sys;
2532 /* Now add mdat header */
2533 bo_t *mdat = box_new("mdat");
2534 /* force update of real size */
2535 mdat->b->i_buffer = mdat->len;
2536 assert(mdat->len==8);
2537 mdat->len += i_total_size;
2539 p_sys->i_pos += mdat->b->i_buffer;
2540 /* only write header */
2541 sout_AccessOutWrite(p_mux->p_access, mdat->b);
2543 /* Header and its size are written and good, now write content */
2544 for (unsigned int i_trak = 0; i_trak < p_sys->i_nb_streams; i_trak++)
2546 mp4_stream_t *p_stream = p_sys->pp_streams[i_trak];
2548 while(p_stream->towrite.p_first)
2550 mp4_fragentry_t *p_entry = p_stream->towrite.p_first;
2551 p_sys->i_pos += p_entry->p_block->i_buffer;
2552 p_stream->i_written_duration += p_entry->p_block->i_length;
2554 p_entry->p_block->i_flags &= ~BLOCK_FLAG_TYPE_I; // clear flag for http stream
2555 sout_AccessOutWrite(p_mux->p_access, p_entry->p_block);
2557 p_stream->towrite.p_first = p_entry->p_next;
2559 if (!p_stream->towrite.p_first)
2560 p_stream->towrite.p_last = NULL;
2565 static bo_t *GetMfraBox(sout_mux_t *p_mux)
2567 sout_mux_sys_t *p_sys = (sout_mux_sys_t*) p_mux->p_sys;
2569 for (unsigned int i = 0; i < p_sys->i_nb_streams; i++)
2571 mp4_stream_t *p_stream = p_sys->pp_streams[i];
2572 if (p_stream->i_indexentries)
2574 bo_t *tfra = box_full_new("tfra", 0, 0x0);
2575 if (!tfra) continue;
2576 bo_add_32be(tfra, p_stream->i_track_id);
2577 bo_add_32be(tfra, 0x3); // reserved + lengths (1,1,4)=>(0,0,3)
2578 bo_add_32be(tfra, p_stream->i_indexentries);
2579 for(uint32_t i_index=0; i_index<p_stream->i_indexentries; i_index++)
2581 const mp4_fragindex_t *p_indexentry = &p_stream->p_indexentries[i_index];
2582 bo_add_32be(tfra, p_indexentry->i_time);
2583 bo_add_32be(tfra, p_indexentry->i_moofoffset);
2584 assert(sizeof(p_indexentry->i_traf)==1); /* guard against sys changes */
2585 assert(sizeof(p_indexentry->i_trun)==1);
2586 assert(sizeof(p_indexentry->i_sample)==4);
2587 bo_add_8(tfra, p_indexentry->i_traf);
2588 bo_add_8(tfra, p_indexentry->i_trun);
2589 bo_add_32be(tfra, p_indexentry->i_sample);
2592 if (!mfra && !(mfra = box_new("mfra")))
2598 box_gather(mfra,tfra);
2604 static void FlushHeader(sout_mux_t *p_mux)
2606 sout_mux_sys_t *p_sys = (sout_mux_sys_t*) p_mux->p_sys;
2608 /* Now add ftyp header */
2609 bo_t *ftyp = box_new("ftyp");
2610 bo_add_fourcc(ftyp, "isom");
2611 bo_add_32be (ftyp, 0); // minor version
2614 bo_t *moov = GetMoovBox(p_mux);
2616 /* merge into a single block */
2617 box_gather(ftyp, moov);
2619 /* add header flag for streaming server */
2620 ftyp->b->i_flags |= BLOCK_FLAG_HEADER;
2621 p_sys->i_pos += ftyp->len;
2622 box_send(p_mux, ftyp);
2623 p_sys->b_header_sent = true;
2626 static int OpenFrag(vlc_object_t *p_this)
2628 sout_mux_t *p_mux = (sout_mux_t*) p_this;
2629 sout_mux_sys_t *p_sys = malloc(sizeof(sout_mux_sys_t));
2633 p_mux->p_sys = (sout_mux_sys_t *) p_sys;
2634 p_mux->pf_control = Control;
2635 p_mux->pf_addstream = AddStream;
2636 p_mux->pf_delstream = DelStream;
2637 p_mux->pf_mux = MuxFrag;
2640 p_sys->b_mov = false;
2641 p_sys->b_3gp = false;
2642 p_sys->b_64_ext = false;
2646 p_sys->i_nb_streams = 0;
2647 p_sys->pp_streams = NULL;
2648 p_sys->i_mdat_pos = 0;
2649 p_sys->i_read_duration = 0;
2650 p_sys->i_written_duration= 0;
2652 p_sys->b_header_sent = false;
2653 p_sys->b_fragmented = true;
2654 p_sys->i_mfhd_sequence = 1;
2659 static void WriteFragments(sout_mux_t *p_mux, bool b_flush)
2661 sout_mux_sys_t *p_sys = (sout_mux_sys_t*) p_mux->p_sys;
2663 mtime_t i_barrier_time = p_sys->i_written_duration + FRAGMENT_LENGTH;
2664 size_t i_mdat_size = 0;
2665 bool b_has_samples = false;
2667 for (unsigned int i = 0; i < p_sys->i_nb_streams; i++)
2669 const mp4_stream_t *p_stream = p_sys->pp_streams[i];
2670 if (p_stream->read.p_first)
2672 b_has_samples = true;
2674 /* set a barrier so we try to align to keyframe */
2675 if (p_stream->b_hasiframes &&
2676 p_stream->i_last_iframe_time > p_stream->i_written_duration &&
2677 (p_stream->fmt.i_cat == VIDEO_ES ||
2678 p_stream->fmt.i_cat == AUDIO_ES) )
2680 i_barrier_time = __MIN(i_barrier_time, p_stream->i_last_iframe_time);
2685 if (!p_sys->b_header_sent)
2689 moof = GetMoofBox(p_mux, &i_mdat_size, (b_flush)?0:i_barrier_time, p_sys->i_pos);
2691 if (moof && i_mdat_size == 0)
2693 block_Release(moof->b);
2699 msg_Dbg(p_mux, "writing moof @ %"PRId64, p_sys->i_pos);
2700 p_sys->i_pos += moof->len;
2701 assert(moof->b->i_flags & BLOCK_FLAG_TYPE_I); /* http sout */
2702 box_send(p_mux, moof);
2703 msg_Dbg(p_mux, "writing mdat @ %"PRId64, p_sys->i_pos);
2704 WriteFragmentMDAT(p_mux, i_mdat_size);
2706 /* update iframe point */
2707 for (unsigned int i = 0; i < p_sys->i_nb_streams; i++)
2709 mp4_stream_t *p_stream = p_sys->pp_streams[i];
2710 p_stream->i_last_iframe_time = 0;
2715 /* Do an entry length fixup using only its own info.
2716 * This is the end boundary case. */
2717 static void LengthLocalFixup(sout_mux_t *p_mux, const mp4_stream_t *p_stream, block_t *p_entrydata)
2719 if ( p_stream->fmt.i_cat == VIDEO_ES )
2721 p_entrydata->i_length = CLOCK_FREQ *
2722 p_stream->fmt.video.i_frame_rate_base /
2723 p_stream->fmt.video.i_frame_rate;
2724 msg_Dbg(p_mux, "video track %d fixup to %"PRId64" for sample %u",
2725 p_stream->i_track_id, p_entrydata->i_length, p_stream->i_entry_count - 1);
2727 else if (p_stream->fmt.i_cat == AUDIO_ES &&
2728 p_stream->fmt.audio.i_rate &&
2729 p_entrydata->i_nb_samples)
2731 p_entrydata->i_length = CLOCK_FREQ * p_entrydata->i_nb_samples /
2732 p_stream->fmt.audio.i_rate;
2733 msg_Dbg(p_mux, "audio track %d fixup to %"PRId64" for sample %u",
2734 p_stream->i_track_id, p_entrydata->i_length, p_stream->i_entry_count - 1);
2738 msg_Warn(p_mux, "unknown length for track %d sample %u",
2739 p_stream->i_track_id, p_stream->i_entry_count - 1);
2740 p_entrydata->i_length = 1;
2744 static void CleanupFrag(sout_mux_sys_t *p_sys)
2746 for (unsigned int i = 0; i < p_sys->i_nb_streams; i++)
2748 mp4_stream_t *p_stream = p_sys->pp_streams[i];
2749 if (p_stream->p_held_entry)
2751 block_Release(p_stream->p_held_entry->p_block);
2752 free(p_stream->p_held_entry);
2754 while(p_stream->read.p_first)
2756 mp4_fragentry_t *p_next = p_stream->read.p_first->p_next;
2757 block_Release(p_stream->read.p_first->p_block);
2758 free(p_stream->read.p_first);
2759 p_stream->read.p_first = p_next;
2761 while(p_stream->towrite.p_first)
2763 mp4_fragentry_t *p_next = p_stream->towrite.p_first->p_next;
2764 block_Release(p_stream->towrite.p_first->p_block);
2765 free(p_stream->towrite.p_first);
2766 p_stream->towrite.p_first = p_next;
2768 free(p_stream->p_indexentries);
2773 static void CloseFrag(vlc_object_t *p_this)
2775 sout_mux_t *p_mux = (sout_mux_t *) p_this;
2776 sout_mux_sys_t *p_sys = (sout_mux_sys_t*) p_mux->p_sys;
2778 /* Flush remaining entries */
2779 for (unsigned int i = 0; i < p_sys->i_nb_streams; i++)
2781 mp4_stream_t *p_stream = p_sys->pp_streams[i];
2782 if (p_stream->p_held_entry)
2784 if (p_stream->p_held_entry->p_block->i_length < 1)
2785 LengthLocalFixup(p_mux, p_stream, p_stream->p_held_entry->p_block);
2786 ENQUEUE_ENTRY(p_stream->read, p_stream->p_held_entry);
2787 p_stream->p_held_entry = NULL;
2791 /* and force creating a fragment from it */
2792 WriteFragments(p_mux, true);
2794 /* Write indexes, but only for non streamed content
2795 as they refer to moof by absolute position */
2796 if (!strcmp(p_mux->psz_mux, "mp4frag"))
2798 bo_t *mfra = GetMfraBox(p_mux);
2801 bo_t *mfro = box_full_new("mfro", 0, 0x0);
2805 bo_add_32be(mfro, mfra->len + MP4_MFRO_BOXSIZE);
2806 box_gather(mfra, mfro);
2808 box_send(p_mux, mfra);
2815 static int MuxFrag(sout_mux_t *p_mux)
2817 sout_mux_sys_t *p_sys = (sout_mux_sys_t*) p_mux->p_sys;
2819 int i_stream = sout_MuxGetStream(p_mux, 1, NULL);
2822 sout_input_t *p_input = p_mux->pp_inputs[i_stream];
2823 mp4_stream_t *p_stream = (mp4_stream_t*) p_input->p_sys;
2824 block_t *p_currentblock = block_FifoGet(p_input->p_fifo);
2826 /* do block conversion */
2827 switch(p_stream->fmt.i_codec)
2829 case VLC_CODEC_H264:
2830 case VLC_CODEC_HEVC:
2831 p_currentblock = ConvertFromAnnexB(p_currentblock);
2833 case VLC_CODEC_SUBT:
2834 p_currentblock = ConvertSUBT(p_currentblock);
2840 /* If we have a previous entry for outgoing queue */
2841 if (p_stream->p_held_entry)
2843 block_t *p_heldblock = p_stream->p_held_entry->p_block;
2845 /* Fix previous block length from current */
2846 if (p_heldblock->i_length < 1)
2849 /* Fix using dts if not on a boundary */
2850 if ((p_currentblock->i_flags & BLOCK_FLAG_DISCONTINUITY) == 0)
2851 p_heldblock->i_length = p_currentblock->i_dts - p_heldblock->i_dts;
2853 if (p_heldblock->i_length < 1)
2854 LengthLocalFixup(p_mux, p_stream, p_heldblock);
2858 ENQUEUE_ENTRY(p_stream->read, p_stream->p_held_entry);
2859 p_stream->p_held_entry = NULL;
2861 if (p_stream->b_hasiframes && (p_heldblock->i_flags & BLOCK_FLAG_TYPE_I) &&
2862 p_stream->i_read_duration - p_sys->i_written_duration < FRAGMENT_LENGTH)
2864 /* Flag the last iframe time, we'll use it as boundary so it will start
2866 p_stream->i_last_iframe_time = p_stream->i_read_duration;
2869 /* update buffered time */
2870 p_stream->i_read_duration += __MAX(0, p_heldblock->i_length);
2874 /* set temp entry */
2875 p_stream->p_held_entry = malloc(sizeof(mp4_fragentry_t));
2876 if (unlikely(!p_stream->p_held_entry))
2879 p_stream->p_held_entry->p_block = p_currentblock;
2880 p_stream->p_held_entry->i_run = p_stream->i_current_run;
2881 p_stream->p_held_entry->p_next = NULL;
2883 if (p_stream->fmt.i_cat == VIDEO_ES )
2885 if (!p_stream->b_hasiframes && (p_currentblock->i_flags & BLOCK_FLAG_TYPE_I))
2886 p_stream->b_hasiframes = true;
2888 if (!p_stream->b_hasbframes && p_currentblock->i_dts > VLC_TS_INVALID &&
2889 p_currentblock->i_pts > p_currentblock->i_dts)
2890 p_stream->b_hasbframes = true;
2893 /* Update the global fragment/media duration */
2894 mtime_t i_min_read_duration = p_stream->i_read_duration;
2895 mtime_t i_min_written_duration = p_stream->i_written_duration;
2896 for (unsigned int i=0; i<p_sys->i_nb_streams; i++)
2898 const mp4_stream_t *p_s = p_sys->pp_streams[i];
2899 if (p_s->fmt.i_cat != VIDEO_ES && p_s->fmt.i_cat != AUDIO_ES)
2901 if (p_s->i_read_duration < i_min_read_duration)
2902 i_min_read_duration = p_s->i_read_duration;
2904 if (p_s->i_written_duration < i_min_written_duration)
2905 i_min_written_duration = p_s->i_written_duration;
2907 p_sys->i_read_duration = i_min_read_duration;
2908 p_sys->i_written_duration = i_min_written_duration;
2910 /* we have prerolled enough to know all streams, and have enough date to create a fragment */
2911 if (p_stream->read.p_first && p_sys->i_read_duration - p_sys->i_written_duration >= FRAGMENT_LENGTH)
2912 WriteFragments(p_mux, false);