1 /* $Id: sync.c,v 1.38 2005/04/14 21:57:58 titer Exp $
3 This file is part of the HandBrake source code.
4 Homepage: <http://handbrake.fr/>.
5 It may be used under the terms of the GNU General Public License. */
10 #include "samplerate.h"
13 #undef INT64_MIN /* Because it isn't defined correctly in Zeta */
15 #define INT64_MIN (-9223372036854775807LL-1)
17 #define AC3_SAMPLES_PER_FRAME 1536
23 int64_t next_start; /* start time of next output frame */
24 int64_t next_pts; /* start time of next input frame */
25 int64_t first_drop; /* PTS of first 'went backwards' frame dropped */
26 int drop_count; /* count of 'time went backwards' drops */
38 struct hb_work_private_s
41 int busy; // bitmask with one bit for each active input
42 // (bit 0 = video; 1 = audio 0, 2 = audio 1, ...
43 // appropriate bit is cleared when input gets
44 // an eof buf. syncWork returns done when all
48 int64_t next_start; /* start time of next output frame */
49 int64_t next_pts; /* start time of next input frame */
50 int64_t first_drop; /* PTS of first 'went backwards' frame dropped */
51 int drop_count; /* count of 'time went backwards' drops */
52 int drops; /* frames dropped to make a cbr video stream */
53 int dups; /* frames duplicated to make a cbr video stream */
57 int chap_mark; /* to propagate chapter mark across a drop */
58 hb_buffer_t * cur; /* The next picture to process */
61 hb_sync_audio_t sync_audio[8];
62 int64_t audio_passthru_slip;
63 int64_t video_pts_slip;
66 uint64_t st_counts[4];
71 /***********************************************************************
73 **********************************************************************/
74 static void InitAudio( hb_work_object_t * w, int i );
75 static void SyncVideo( hb_work_object_t * w );
76 static void SyncAudio( hb_work_object_t * w, int i );
77 static void InsertSilence( hb_work_object_t * w, int i, int64_t d );
78 static void UpdateState( hb_work_object_t * w );
80 /***********************************************************************
82 ***********************************************************************
83 * Initialize the work object
84 **********************************************************************/
85 int syncInit( hb_work_object_t * w, hb_job_t * job )
87 hb_title_t * title = job->title;
88 hb_chapter_t * chapter;
91 hb_work_private_t * pv;
93 pv = calloc( 1, sizeof( hb_work_private_t ) );
97 pv->pts_offset = INT64_MIN;
101 /* We already have an accurate frame count from pass 1 */
102 hb_interjob_t * interjob = hb_interjob_get( job->h );
103 pv->count_frames_max = interjob->frame_count;
107 /* Calculate how many video frames we are expecting */
108 if ( job->pts_to_stop )
110 duration = job->pts_to_stop + 90000;
112 else if( job->frame_to_stop )
114 /* Set the duration to a rough estimate */
115 duration = ( job->frame_to_stop / ( title->rate / title->rate_base ) ) * 90000;
120 for( i = job->chapter_start; i <= job->chapter_end; i++ )
122 chapter = hb_list_item( title->list_chapter, i - 1 );
123 duration += chapter->duration;
126 /* 1 second safety so we're sure we won't miss anything */
128 pv->count_frames_max = duration * title->rate / title->rate_base / 90000;
131 hb_log( "sync: expecting %d video frames", pv->count_frames_max );
134 /* Initialize libsamplerate for every audio track we have */
135 if ( ! job->indepth_scan )
137 for( i = 0; i < hb_list_count( title->list_audio ) && i < 8; i++ )
139 pv->busy |= ( 1 << (i + 1) );
147 /***********************************************************************
149 ***********************************************************************
151 **********************************************************************/
152 void syncClose( hb_work_object_t * w )
154 hb_work_private_t * pv = w->private_data;
155 hb_job_t * job = pv->job;
156 hb_title_t * title = job->title;
157 hb_audio_t * audio = NULL;
162 hb_buffer_close( &pv->cur );
165 hb_log( "sync: got %d frames, %d expected",
166 pv->count_frames, pv->count_frames_max );
168 /* save data for second pass */
171 /* Preserve frame count for better accuracy in pass 2 */
172 hb_interjob_t * interjob = hb_interjob_get( job->h );
173 interjob->frame_count = pv->count_frames;
174 interjob->last_job = job->sequence_id;
175 interjob->total_time = pv->next_start;
178 if (pv->drops || pv->dups )
180 hb_log( "sync: %d frames dropped, %d duplicated", pv->drops, pv->dups );
183 for( i = 0; i < hb_list_count( title->list_audio ); i++ )
185 audio = hb_list_item( title->list_audio, i );
186 if( audio->config.out.codec == HB_ACODEC_AC3 )
188 free( pv->sync_audio[i].ac3_buf );
192 src_delete( pv->sync_audio[i].state );
197 w->private_data = NULL;
200 /***********************************************************************
202 ***********************************************************************
203 * The root routine of this work abject
205 * The way this works is that we are syncing the audio to the PTS of
206 * the last video that we processed. That's why we skip the audio sync
207 * if we haven't got a valid PTS from the video yet.
209 **********************************************************************/
210 int syncWork( hb_work_object_t * w, hb_buffer_t ** unused1,
211 hb_buffer_t ** unused2 )
213 hb_work_private_t * pv = w->private_data;
219 for( i = 0; i < hb_list_count( pv->job->title->list_audio ); i++ )
221 if ( pv->busy & ( 1 << (i + 1) ) )
225 return ( pv->busy? HB_WORK_OK : HB_WORK_DONE );
228 hb_work_object_t hb_sync =
237 static void InitAudio( hb_work_object_t * w, int i )
239 hb_work_private_t * pv = w->private_data;
240 hb_job_t * job = pv->job;
241 hb_title_t * title = job->title;
242 hb_sync_audio_t * sync;
244 sync = &pv->sync_audio[i];
245 sync->audio = hb_list_item( title->list_audio, i );
247 if( sync->audio->config.out.codec == HB_ACODEC_AC3 )
249 /* Have a silent AC-3 frame ready in case we have to fill a
255 codec = avcodec_find_encoder( CODEC_ID_AC3 );
256 c = avcodec_alloc_context();
258 c->bit_rate = sync->audio->config.in.bitrate;
259 c->sample_rate = sync->audio->config.in.samplerate;
260 c->channels = HB_INPUT_CH_LAYOUT_GET_DISCRETE_COUNT( sync->audio->config.in.channel_layout );
262 if( hb_avcodec_open( c, codec ) < 0 )
264 hb_log( "sync: avcodec_open failed" );
268 zeros = calloc( AC3_SAMPLES_PER_FRAME *
269 sizeof( short ) * c->channels, 1 );
270 sync->ac3_size = sync->audio->config.in.bitrate * AC3_SAMPLES_PER_FRAME /
271 sync->audio->config.in.samplerate / 8;
272 sync->ac3_buf = malloc( sync->ac3_size );
274 if( avcodec_encode_audio( c, sync->ac3_buf, sync->ac3_size,
275 zeros ) != sync->ac3_size )
277 hb_log( "sync: avcodec_encode_audio failed" );
281 hb_avcodec_close( c );
286 /* Initialize libsamplerate */
288 sync->state = src_new( SRC_SINC_MEDIUM_QUALITY, HB_AMIXDOWN_GET_DISCRETE_CHANNEL_COUNT(sync->audio->config.out.mixdown), &error );
289 sync->data.end_of_input = 0;
293 /***********************************************************************
295 ***********************************************************************
297 **********************************************************************/
298 static void SyncVideo( hb_work_object_t * w )
300 hb_work_private_t * pv = w->private_data;
301 hb_buffer_t * cur, * next, * sub = NULL;
302 hb_job_t * job = pv->job;
303 hb_subtitle_t *subtitle;
307 if( !pv->cur && !( pv->cur = hb_fifo_get( job->fifo_raw ) ) )
309 /* We haven't even got a frame yet */
316 /* we got an end-of-stream. Feed it downstream & signal that we're done. */
317 hb_fifo_push( job->fifo_sync, hb_buffer_init( 0 ) );
320 * Push through any subtitle EOFs in case they were not synced through.
322 for( i = 0; i < hb_list_count( job->list_subtitle ); i++)
324 subtitle = hb_list_item( job->list_subtitle, i );
325 if( subtitle->config.dest == PASSTHRUSUB )
327 hb_fifo_push( subtitle->fifo_out, hb_buffer_init( 0 ) );
335 /* At this point we have a frame to process. Let's check
336 1) if we will be able to push into the fifo ahead
337 2) if the next frame is there already, since we need it to
338 compute the duration of the current frame*/
339 while( !hb_fifo_is_full( job->fifo_sync ) &&
340 ( next = hb_fifo_see( job->fifo_raw ) ) )
342 hb_buffer_t * buf_tmp;
344 if( next->size == 0 )
346 /* we got an end-of-stream. Feed it downstream & signal that
347 * we're done. Note that this means we drop the final frame of
348 * video (we don't know its duration). On DVDs the final frame
349 * is often strange and dropping it seems to be a good idea. */
350 hb_fifo_push( job->fifo_sync, hb_buffer_init( 0 ) );
353 * Push through any subtitle EOFs in case they were not synced through.
355 for( i = 0; i < hb_list_count( job->list_subtitle ); i++)
357 subtitle = hb_list_item( job->list_subtitle, i );
358 if( subtitle->config.dest == PASSTHRUSUB )
360 hb_fifo_push( subtitle->fifo_out, hb_buffer_init( 0 ) );
366 if( pv->pts_offset == INT64_MIN )
368 /* This is our first frame */
370 if ( cur->start != 0 )
373 * The first pts from a dvd should always be zero but
374 * can be non-zero with a transport or program stream since
375 * we're not guaranteed to start on an IDR frame. If we get
376 * a non-zero initial PTS extend its duration so it behaves
377 * as if it started at zero so that our audio timing will
380 hb_log( "sync: first pts is %"PRId64, cur->start );
386 * since the first frame is always 0 and the upstream reader code
387 * is taking care of adjusting for pts discontinuities, we just have
388 * to deal with the next frame's start being in the past. This can
389 * happen when the PTS is adjusted after data loss but video frame
390 * reordering causes some frames with the old clock to appear after
391 * the clock change. This creates frames that overlap in time which
392 * looks to us like time going backward. The downstream muxing code
393 * can deal with overlaps of up to a frame time but anything larger
394 * we handle by dropping frames here.
396 if ( (int64_t)( next->start - pv->video_pts_slip - cur->start ) <= 0 )
398 if ( pv->first_drop == 0 )
400 pv->first_drop = next->start;
403 if (next->start - cur->start > 0)
405 pts_skip += next->start - cur->start;
406 pv->video_pts_slip -= next->start - cur->start;
408 buf_tmp = hb_fifo_get( job->fifo_raw );
409 if ( buf_tmp->new_chap )
411 // don't drop a chapter mark when we drop the buffer
412 pv->chap_mark = buf_tmp->new_chap;
414 hb_buffer_close( &buf_tmp );
417 if ( pv->first_drop )
419 hb_log( "sync: video time didn't advance - dropped %d frames "
420 "(delta %d ms, current %"PRId64", next %"PRId64", dur %d)",
421 pv->drop_count, (int)( cur->start - pv->first_drop ) / 90,
422 cur->start, next->start, (int)( next->start - cur->start ) );
428 * Track the video sequence number localy so that we can sync the audio
429 * to it using the sequence number as well as the PTS.
431 pv->video_sequence = cur->sequence;
434 * Look for a subtitle for this frame.
436 * If found then it will be tagged onto a video buffer of the correct time and
437 * sent in to the render pipeline. This only needs to be done for VOBSUBs which
438 * get rendered, other types of subtitles can just sit in their raw_queue until
439 * delt with at muxing.
441 for( i = 0; i < hb_list_count( job->list_subtitle ); i++)
443 subtitle = hb_list_item( job->list_subtitle, i );
446 * Rewrite timestamps on subtitles that need it (on raw queue).
448 if( subtitle->source == CC608SUB ||
449 subtitle->source == CC708SUB ||
450 subtitle->source == SRTSUB )
453 * Rewrite timestamps on subtitles that came from Closed Captions
454 * since they are using the MPEG2 timestamps.
456 while( ( sub = hb_fifo_see( subtitle->fifo_raw ) ) )
459 * Rewrite the timestamps as and when the video
460 * (cur->start) reaches the same timestamp as a
461 * closed caption (sub->start).
463 * What about discontinuity boundaries - not delt
466 * Bypass the sync fifo altogether.
470 sub = hb_fifo_get( subtitle->fifo_raw );
471 hb_fifo_push( subtitle->fifo_out, sub );
476 * Sync the subtitles to the incoming video, and use
477 * the matching converted video timestamp.
479 * Note that it doesn't appear that we need to convert
480 * timestamps, I guess that they were already correct,
481 * so just push them through for rendering.
484 if( sub->start < cur->start )
486 sub = hb_fifo_get( subtitle->fifo_raw );
487 hb_fifo_push( subtitle->fifo_out, sub );
496 if( subtitle->source == VOBSUB )
499 while( ( sub = hb_fifo_see( subtitle->fifo_raw ) ) )
504 * EOF, pass it through immediately.
509 /* If two subtitles overlap, make the first one stop
510 when the second one starts */
511 sub2 = hb_fifo_see2( subtitle->fifo_raw );
512 if( sub2 && sub->stop > sub2->start )
514 sub->stop = sub2->start;
517 // hb_log("0x%x: video seq: %lld subtitle sequence: %lld",
518 // sub, cur->sequence, sub->sequence);
520 if( sub->sequence > cur->sequence )
523 * The video is behind where we are, so wait until
524 * it catches up to the same reader point on the
525 * DVD. Then our PTS should be in the same region
532 if( sub->stop > cur->start ) {
534 * The stop time is in the future, so fall through
535 * and we'll deal with it in the next block of
540 * There is a valid subtitle, is it time to display it?
542 if( sub->stop > sub->start)
545 * Normal subtitle which ends after it starts,
546 * check to see that the current video is between
549 if( cur->start > sub->start &&
550 cur->start < sub->stop )
553 * We should be playing this, so leave the
556 * fall through to display
558 if( ( sub->stop - sub->start ) < ( 2 * 90000 ) )
561 * Subtitle is on for less than three
562 * seconds, extend the time that it is
563 * displayed to make it easier to read.
564 * Make it 3 seconds or until the next
565 * subtitle is displayed.
567 * This is in response to Indochine which
568 * only displays subs for 1 second -
571 sub->stop = sub->start + ( 2 * 90000 );
573 sub2 = hb_fifo_see2( subtitle->fifo_raw );
575 if( sub2 && sub->stop > sub2->start )
577 sub->stop = sub2->start;
584 * Defer until the play point is within
593 * The end of the subtitle is less than the start,
594 * this is a sign of a PTS discontinuity.
596 if( sub->start > cur->start )
599 * we haven't reached the start time yet, or
600 * we have jumped backwards after having
601 * already started this subtitle.
603 if( cur->start < sub->stop )
606 * We have jumped backwards and so should
607 * continue displaying this subtitle.
609 * fall through to display.
615 * Defer until the play point is
616 * within the subtitle
622 * Play this subtitle as the start is
623 * greater than our video point.
625 * fall through to display/
635 * The subtitle is older than this picture, trash it
637 sub = hb_fifo_get( subtitle->fifo_raw );
638 hb_buffer_close( &sub );
642 /* If we have a subtitle for this picture, copy it */
643 /* FIXME: we should avoid this memcpy */
648 if( subtitle->config.dest == RENDERSUB )
650 if ( cur->sub == NULL )
653 * Tack onto the video buffer for rendering
655 cur->sub = hb_buffer_init( sub->size );
656 cur->sub->x = sub->x;
657 cur->sub->y = sub->y;
658 cur->sub->width = sub->width;
659 cur->sub->height = sub->height;
660 memcpy( cur->sub->data, sub->data, sub->size );
664 * Pass-Through, pop it off of the raw queue,
666 sub = hb_fifo_get( subtitle->fifo_raw );
667 hb_fifo_push( subtitle->fifo_sync, sub );
671 * EOF - consume for rendered, else pass through
673 if( subtitle->config.dest == RENDERSUB )
675 sub = hb_fifo_get( subtitle->fifo_raw );
676 hb_buffer_close( &sub );
678 sub = hb_fifo_get( subtitle->fifo_raw );
679 hb_fifo_push( subtitle->fifo_out, sub );
687 * Adjust the pts of the current frame so that it's contiguous
688 * with the previous frame. The start time of the current frame
689 * has to be the end time of the previous frame and the stop
690 * time has to be the start of the next frame. We don't
691 * make any adjustments to the source timestamps other than removing
692 * the clock offsets (which also removes pts discontinuities).
693 * This means we automatically encode at the source's frame rate.
694 * MP2 uses an implicit duration (frames end when the next frame
695 * starts) but more advanced containers like MP4 use an explicit
696 * duration. Since we're looking ahead one frame we set the
697 * explicit stop time from the start time of the next frame.
700 pv->cur = cur = hb_fifo_get( job->fifo_raw );
702 pv->next_pts = cur->start;
703 int64_t duration = cur->start - pts_skip - buf_tmp->start;
707 hb_log( "sync: invalid video duration %"PRId64", start %"PRId64", next %"PRId64"",
708 duration, buf_tmp->start, next->start );
711 buf_tmp->start = pv->next_start;
712 pv->next_start += duration;
713 buf_tmp->stop = pv->next_start;
717 // we have a pending chapter mark from a recent drop - put it on this
718 // buffer (this may make it one frame late but we can't do any better).
719 buf_tmp->new_chap = pv->chap_mark;
723 /* Push the frame to the renderer */
724 hb_fifo_push( job->fifo_sync, buf_tmp );
729 if( job->frame_to_stop && pv->count_frames > job->frame_to_stop )
731 // Drop an empty buffer into our output to ensure that things
732 // get flushed all the way out.
733 hb_fifo_push( job->fifo_sync, hb_buffer_init( 0 ) );
735 hb_log( "sync: reached %d frames, exiting early (%i busy)",
736 pv->count_frames, pv->busy );
742 static void OutputAudioFrame( hb_job_t *job, hb_audio_t *audio, hb_buffer_t *buf,
743 hb_sync_audio_t *sync, hb_fifo_t *fifo, int i )
745 int64_t start = sync->next_start;
746 int64_t duration = buf->stop - buf->start;
748 sync->next_pts += duration;
750 if( audio->config.in.samplerate == audio->config.out.samplerate ||
751 audio->config.out.codec == HB_ACODEC_AC3 ||
752 audio->config.out.codec == HB_ACODEC_DCA )
755 * If we don't have to do sample rate conversion or this audio is
756 * pass-thru just send the input buffer downstream after adjusting
757 * its timestamps to make the output stream continuous.
762 /* Not pass-thru - do sample rate conversion */
763 int count_in, count_out;
764 hb_buffer_t * buf_raw = buf;
765 int channel_count = HB_AMIXDOWN_GET_DISCRETE_CHANNEL_COUNT(audio->config.out.mixdown) *
768 count_in = buf_raw->size / channel_count;
770 * When using stupid rates like 44.1 there will always be some
771 * truncation error. E.g., a 1536 sample AC3 frame will turn into a
772 * 1536*44.1/48.0 = 1411.2 sample frame. If we just truncate the .2
773 * the error will build up over time and eventually the audio will
774 * substantially lag the video. libsamplerate will keep track of the
775 * fractional sample & give it to us when appropriate if we give it
776 * an extra sample of space in the output buffer.
778 count_out = ( duration * audio->config.out.samplerate ) / 90000 + 1;
780 sync->data.input_frames = count_in;
781 sync->data.output_frames = count_out;
782 sync->data.src_ratio = (double)audio->config.out.samplerate /
783 (double)audio->config.in.samplerate;
785 buf = hb_buffer_init( count_out * channel_count );
786 sync->data.data_in = (float *) buf_raw->data;
787 sync->data.data_out = (float *) buf->data;
788 if( src_process( sync->state, &sync->data ) )
790 /* XXX If this happens, we're screwed */
791 hb_log( "sync: audio %d src_process failed", i );
793 hb_buffer_close( &buf_raw );
795 buf->size = sync->data.output_frames_gen * channel_count;
796 duration = ( sync->data.output_frames_gen * 90000 ) /
797 audio->config.out.samplerate;
799 buf->frametype = HB_FRAME_AUDIO;
801 buf->stop = start + duration;
802 sync->next_start = start + duration;
803 hb_fifo_push( fifo, buf );
806 /***********************************************************************
808 ***********************************************************************
810 **********************************************************************/
811 static void SyncAudio( hb_work_object_t * w, int i )
813 hb_work_private_t * pv = w->private_data;
814 hb_job_t * job = pv->job;
815 hb_sync_audio_t * sync = &pv->sync_audio[i];
816 hb_audio_t * audio = sync->audio;
821 if( audio->config.out.codec == HB_ACODEC_AC3 ||
822 audio->config.out.codec == HB_ACODEC_DCA )
824 fifo = audio->priv.fifo_out;
828 fifo = audio->priv.fifo_sync;
831 while( !hb_fifo_is_full( fifo ) && ( buf = hb_fifo_see( audio->priv.fifo_raw ) ) )
833 start = buf->start - pv->audio_passthru_slip;
834 /* if the next buffer is an eof send it downstream */
835 if ( buf->size <= 0 )
837 buf = hb_fifo_get( audio->priv.fifo_raw );
838 hb_fifo_push( fifo, buf );
839 pv->busy &=~ (1 << (i + 1) );
842 if( job->frame_to_stop && pv->count_frames >= job->frame_to_stop )
844 hb_fifo_push( fifo, hb_buffer_init(0) );
845 pv->busy &=~ (1 << (i + 1) );
848 if ( (int64_t)( start - sync->next_pts ) < 0 )
850 // audio time went backwards.
851 // If our output clock is more than a half frame ahead of the
852 // input clock drop this frame to move closer to sync.
853 // Otherwise drop frames until the input clock matches the output clock.
854 if ( sync->first_drop || sync->next_start - start > 90*15 )
856 // Discard data that's in the past.
857 if ( sync->first_drop == 0 )
859 sync->first_drop = sync->next_pts;
862 buf = hb_fifo_get( audio->priv.fifo_raw );
863 hb_buffer_close( &buf );
866 sync->next_pts = start;
868 if ( sync->first_drop )
870 // we were dropping old data but input buf time is now current
871 hb_log( "sync: audio %d time went backwards %d ms, dropped %d frames "
872 "(next %"PRId64", current %"PRId64")", i,
873 (int)( sync->next_pts - sync->first_drop ) / 90,
874 sync->drop_count, sync->first_drop, sync->next_pts );
875 sync->first_drop = 0;
876 sync->drop_count = 0;
877 sync->next_pts = start;
879 if ( start - sync->next_pts >= (90 * 70) )
881 if ( start - sync->next_pts > (90000LL * 60) )
883 // there's a gap of more than a minute between the last
884 // frame and this. assume we got a corrupted timestamp
885 // and just drop the next buf.
886 hb_log( "sync: %d minute time gap in audio %d - dropping buf"
887 " start %"PRId64", next %"PRId64,
888 (int)((start - sync->next_pts) / (90000*60)),
889 i, start, sync->next_pts );
890 buf = hb_fifo_get( audio->priv.fifo_raw );
891 hb_buffer_close( &buf );
895 * there's a gap of at least 70ms between the last
896 * frame we processed & the next. Fill it with silence.
897 * Or in the case of DCA, skip some frames from the
900 if( sync->audio->config.out.codec == HB_ACODEC_DCA )
902 hb_log( "sync: audio gap %d ms. Skipping frames. Audio %d"
903 " start %"PRId64", next %"PRId64,
904 (int)((start - sync->next_pts) / 90),
905 i, start, sync->next_pts );
906 pv->audio_passthru_slip += (start - sync->next_pts);
907 pv->video_pts_slip += (start - sync->next_pts);
910 hb_log( "sync: adding %d ms of silence to audio %d"
911 " start %"PRId64", next %"PRId64,
912 (int)((start - sync->next_pts) / 90),
913 i, start, sync->next_pts );
914 InsertSilence( w, i, start - sync->next_pts );
919 * When we get here we've taken care of all the dups and gaps in the
920 * audio stream and are ready to inject the next input frame into
923 buf = hb_fifo_get( audio->priv.fifo_raw );
924 OutputAudioFrame( job, audio, buf, sync, fifo, i );
928 static void InsertSilence( hb_work_object_t * w, int i, int64_t duration )
930 hb_work_private_t * pv = w->private_data;
931 hb_job_t *job = pv->job;
932 hb_sync_audio_t *sync = &pv->sync_audio[i];
936 // to keep pass-thru and regular audio in sync we generate silence in
937 // AC3 frame-sized units. If the silence duration isn't an integer multiple
938 // of the AC3 frame duration we will truncate or round up depending on
939 // which minimizes the timing error.
940 const int frame_dur = ( 90000 * AC3_SAMPLES_PER_FRAME ) /
941 sync->audio->config.in.samplerate;
942 int frame_count = ( duration + (frame_dur >> 1) ) / frame_dur;
944 while ( --frame_count >= 0 )
946 if( sync->audio->config.out.codec == HB_ACODEC_AC3 )
948 buf = hb_buffer_init( sync->ac3_size );
949 buf->start = sync->next_pts;
950 buf->stop = buf->start + frame_dur;
951 memcpy( buf->data, sync->ac3_buf, buf->size );
952 fifo = sync->audio->priv.fifo_out;
956 buf = hb_buffer_init( AC3_SAMPLES_PER_FRAME * sizeof( float ) *
957 HB_AMIXDOWN_GET_DISCRETE_CHANNEL_COUNT(
958 sync->audio->config.out.mixdown) );
959 buf->start = sync->next_pts;
960 buf->stop = buf->start + frame_dur;
961 memset( buf->data, 0, buf->size );
962 fifo = sync->audio->priv.fifo_sync;
964 OutputAudioFrame( job, sync->audio, buf, sync, fifo, i );
968 static void UpdateState( hb_work_object_t * w )
970 hb_work_private_t * pv = w->private_data;
973 if( !pv->count_frames )
975 pv->st_first = hb_get_date();
976 pv->job->st_pause_date = -1;
977 pv->job->st_paused = 0;
981 if( hb_get_date() > pv->st_dates[3] + 1000 )
983 memmove( &pv->st_dates[0], &pv->st_dates[1],
984 3 * sizeof( uint64_t ) );
985 memmove( &pv->st_counts[0], &pv->st_counts[1],
986 3 * sizeof( uint64_t ) );
987 pv->st_dates[3] = hb_get_date();
988 pv->st_counts[3] = pv->count_frames;
991 #define p state.param.working
992 state.state = HB_STATE_WORKING;
993 p.progress = (float) pv->count_frames / (float) pv->count_frames_max;
994 if( p.progress > 1.0 )
998 p.rate_cur = 1000.0 *
999 (float) ( pv->st_counts[3] - pv->st_counts[0] ) /
1000 (float) ( pv->st_dates[3] - pv->st_dates[0] );
1001 if( hb_get_date() > pv->st_first + 4000 )
1004 p.rate_avg = 1000.0 * (float) pv->st_counts[3] /
1005 (float) ( pv->st_dates[3] - pv->st_first - pv->job->st_paused);
1006 eta = (float) ( pv->count_frames_max - pv->st_counts[3] ) /
1008 p.hours = eta / 3600;
1009 p.minutes = ( eta % 3600 ) / 60;
1010 p.seconds = eta % 60;
1021 hb_set_state( pv->job->h, &state );