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;
65 uint64_t st_counts[4];
70 /***********************************************************************
72 **********************************************************************/
73 static void InitAudio( hb_work_object_t * w, int i );
74 static void SyncVideo( hb_work_object_t * w );
75 static void SyncAudio( hb_work_object_t * w, int i );
76 static void InsertSilence( hb_work_object_t * w, int i, int64_t d );
77 static void UpdateState( hb_work_object_t * w );
79 /***********************************************************************
81 ***********************************************************************
82 * Initialize the work object
83 **********************************************************************/
84 int syncInit( hb_work_object_t * w, hb_job_t * job )
86 hb_title_t * title = job->title;
87 hb_chapter_t * chapter;
90 hb_work_private_t * pv;
92 pv = calloc( 1, sizeof( hb_work_private_t ) );
96 pv->pts_offset = INT64_MIN;
98 /* Calculate how many video frames we are expecting */
101 duration = job->pts_to_stop + 90000;
103 else if( job->frame_to_stop )
105 /* Set the duration to a rough estimate */
106 duration = ( job->frame_to_stop / ( job->vrate / job->vrate_base ) ) * 90000;
111 for( i = job->chapter_start; i <= job->chapter_end; i++ )
113 chapter = hb_list_item( title->list_chapter, i - 1 );
114 duration += chapter->duration;
117 /* 1 second safety so we're sure we won't miss anything */
119 pv->count_frames_max = duration * job->vrate / job->vrate_base / 90000;
121 hb_log( "sync: expecting %d video frames", pv->count_frames_max );
124 /* Initialize libsamplerate for every audio track we have */
125 if ( ! job->indepth_scan )
127 for( i = 0; i < hb_list_count( title->list_audio ) && i < 8; i++ )
129 pv->busy |= ( 1 << (i + 1) );
137 /***********************************************************************
139 ***********************************************************************
141 **********************************************************************/
142 void syncClose( hb_work_object_t * w )
144 hb_work_private_t * pv = w->private_data;
145 hb_job_t * job = pv->job;
146 hb_title_t * title = job->title;
147 hb_audio_t * audio = NULL;
152 hb_buffer_close( &pv->cur );
155 hb_log( "sync: got %d frames, %d expected",
156 pv->count_frames, pv->count_frames_max );
158 if (pv->drops || pv->dups )
160 hb_log( "sync: %d frames dropped, %d duplicated", pv->drops, pv->dups );
163 for( i = 0; i < hb_list_count( title->list_audio ); i++ )
165 audio = hb_list_item( title->list_audio, i );
166 if( audio->config.out.codec == HB_ACODEC_AC3 )
168 free( pv->sync_audio[i].ac3_buf );
172 src_delete( pv->sync_audio[i].state );
177 w->private_data = NULL;
180 /***********************************************************************
182 ***********************************************************************
183 * The root routine of this work abject
185 * The way this works is that we are syncing the audio to the PTS of
186 * the last video that we processed. That's why we skip the audio sync
187 * if we haven't got a valid PTS from the video yet.
189 **********************************************************************/
190 int syncWork( hb_work_object_t * w, hb_buffer_t ** unused1,
191 hb_buffer_t ** unused2 )
193 hb_work_private_t * pv = w->private_data;
199 for( i = 0; i < hb_list_count( pv->job->title->list_audio ); i++ )
201 if ( pv->busy & ( 1 << (i + 1) ) )
205 return ( pv->busy? HB_WORK_OK : HB_WORK_DONE );
208 hb_work_object_t hb_sync =
217 static void InitAudio( hb_work_object_t * w, int i )
219 hb_work_private_t * pv = w->private_data;
220 hb_job_t * job = pv->job;
221 hb_title_t * title = job->title;
222 hb_sync_audio_t * sync;
224 sync = &pv->sync_audio[i];
225 sync->audio = hb_list_item( title->list_audio, i );
227 if( sync->audio->config.out.codec == HB_ACODEC_AC3 )
229 /* Have a silent AC-3 frame ready in case we have to fill a
235 codec = avcodec_find_encoder( CODEC_ID_AC3 );
236 c = avcodec_alloc_context();
238 c->bit_rate = sync->audio->config.in.bitrate;
239 c->sample_rate = sync->audio->config.in.samplerate;
240 c->channels = HB_INPUT_CH_LAYOUT_GET_DISCRETE_COUNT( sync->audio->config.in.channel_layout );
242 if( hb_avcodec_open( c, codec ) < 0 )
244 hb_log( "sync: avcodec_open failed" );
248 zeros = calloc( AC3_SAMPLES_PER_FRAME *
249 sizeof( short ) * c->channels, 1 );
250 sync->ac3_size = sync->audio->config.in.bitrate * AC3_SAMPLES_PER_FRAME /
251 sync->audio->config.in.samplerate / 8;
252 sync->ac3_buf = malloc( sync->ac3_size );
254 if( avcodec_encode_audio( c, sync->ac3_buf, sync->ac3_size,
255 zeros ) != sync->ac3_size )
257 hb_log( "sync: avcodec_encode_audio failed" );
261 hb_avcodec_close( c );
266 /* Initialize libsamplerate */
268 sync->state = src_new( SRC_SINC_MEDIUM_QUALITY, HB_AMIXDOWN_GET_DISCRETE_CHANNEL_COUNT(sync->audio->config.out.mixdown), &error );
269 sync->data.end_of_input = 0;
273 /***********************************************************************
275 ***********************************************************************
277 **********************************************************************/
278 static void SyncVideo( hb_work_object_t * w )
280 hb_work_private_t * pv = w->private_data;
281 hb_buffer_t * cur, * next, * sub = NULL;
282 hb_job_t * job = pv->job;
283 hb_subtitle_t *subtitle;
286 if( !pv->cur && !( pv->cur = hb_fifo_get( job->fifo_raw ) ) )
288 /* We haven't even got a frame yet */
294 /* we got an end-of-stream. Feed it downstream & signal that we're done. */
295 hb_fifo_push( job->fifo_sync, hb_buffer_init( 0 ) );
298 * Push through any subtitle EOFs in case they were not synced through.
300 for( i = 0; i < hb_list_count( job->list_subtitle ); i++)
302 subtitle = hb_list_item( job->list_subtitle, i );
303 if( subtitle->dest == PASSTHRUSUB )
305 hb_fifo_push( subtitle->fifo_out, hb_buffer_init( 0 ) );
313 /* At this point we have a frame to process. Let's check
314 1) if we will be able to push into the fifo ahead
315 2) if the next frame is there already, since we need it to
316 compute the duration of the current frame*/
317 while( !hb_fifo_is_full( job->fifo_sync ) &&
318 ( next = hb_fifo_see( job->fifo_raw ) ) )
320 hb_buffer_t * buf_tmp;
322 if( next->size == 0 )
324 /* we got an end-of-stream. Feed it downstream & signal that
325 * we're done. Note that this means we drop the final frame of
326 * video (we don't know its duration). On DVDs the final frame
327 * is often strange and dropping it seems to be a good idea. */
328 hb_fifo_push( job->fifo_sync, hb_buffer_init( 0 ) );
331 * Push through any subtitle EOFs in case they were not synced through.
333 for( i = 0; i < hb_list_count( job->list_subtitle ); i++)
335 subtitle = hb_list_item( job->list_subtitle, i );
336 if( subtitle->dest == PASSTHRUSUB )
338 hb_fifo_push( subtitle->fifo_out, hb_buffer_init( 0 ) );
344 if( pv->pts_offset == INT64_MIN )
346 /* This is our first frame */
348 if ( cur->start != 0 )
351 * The first pts from a dvd should always be zero but
352 * can be non-zero with a transport or program stream since
353 * we're not guaranteed to start on an IDR frame. If we get
354 * a non-zero initial PTS extend its duration so it behaves
355 * as if it started at zero so that our audio timing will
358 hb_log( "sync: first pts is %lld", cur->start );
363 if( cur->new_chap ) {
364 hb_log("sync got new chapter %d", cur->new_chap );
368 * since the first frame is always 0 and the upstream reader code
369 * is taking care of adjusting for pts discontinuities, we just have
370 * to deal with the next frame's start being in the past. This can
371 * happen when the PTS is adjusted after data loss but video frame
372 * reordering causes some frames with the old clock to appear after
373 * the clock change. This creates frames that overlap in time which
374 * looks to us like time going backward. The downstream muxing code
375 * can deal with overlaps of up to a frame time but anything larger
376 * we handle by dropping frames here.
378 if ( (int64_t)( next->start - cur->start ) <= 0 ||
379 (int64_t)( (cur->start - pv->audio_passthru_slip ) - pv->next_pts ) < 0 )
381 if ( pv->first_drop == 0 )
383 pv->first_drop = next->start;
386 buf_tmp = hb_fifo_get( job->fifo_raw );
387 if ( buf_tmp->new_chap )
389 // don't drop a chapter mark when we drop the buffer
390 pv->chap_mark = buf_tmp->new_chap;
392 hb_buffer_close( &buf_tmp );
395 if ( pv->first_drop )
397 hb_log( "sync: video time didn't advance - dropped %d frames "
398 "(delta %d ms, current %lld, next %lld, dur %d)",
399 pv->drop_count, (int)( cur->start - pv->first_drop ) / 90,
400 cur->start, next->start, (int)( next->start - cur->start ) );
406 * Track the video sequence number localy so that we can sync the audio
407 * to it using the sequence number as well as the PTS.
409 pv->video_sequence = cur->sequence;
412 * Look for a subtitle for this frame.
414 * If found then it will be tagged onto a video buffer of the correct time and
415 * sent in to the render pipeline. This only needs to be done for VOBSUBs which
416 * get rendered, other types of subtitles can just sit in their raw_queue until
417 * delt with at muxing.
419 for( i = 0; i < hb_list_count( job->list_subtitle ); i++)
421 subtitle = hb_list_item( job->list_subtitle, i );
424 * Rewrite timestamps on subtitles that need it (on raw queue).
426 if( subtitle->source == CC608SUB ||
427 subtitle->source == CC708SUB )
430 * Rewrite timestamps on subtitles that came from Closed Captions
431 * since they are using the MPEG2 timestamps.
433 while( ( sub = hb_fifo_see( subtitle->fifo_raw ) ) )
436 * Rewrite the timestamps as and when the video
437 * (cur->start) reaches the same timestamp as a
438 * closed caption (sub->start).
440 * What about discontinuity boundaries - not delt
443 * Bypass the sync fifo altogether.
447 sub = hb_fifo_get( subtitle->fifo_raw );
448 hb_fifo_push( subtitle->fifo_out, sub );
452 if( sub->start < cur->start )
455 duration = sub->stop - sub->start;
456 sub = hb_fifo_get( subtitle->fifo_raw );
457 sub->start = pv->next_start;
458 sub->stop = sub->start + duration;
459 hb_fifo_push( subtitle->fifo_out, sub );
468 if( subtitle->source == VOBSUB )
471 while( ( sub = hb_fifo_see( subtitle->fifo_raw ) ) )
476 * EOF, pass it through immediately.
481 /* If two subtitles overlap, make the first one stop
482 when the second one starts */
483 sub2 = hb_fifo_see2( subtitle->fifo_raw );
484 if( sub2 && sub->stop > sub2->start )
485 sub->stop = sub2->start;
487 // hb_log("0x%x: video seq: %lld subtitle sequence: %lld",
488 // sub, cur->sequence, sub->sequence);
490 if( sub->sequence > cur->sequence )
493 * The video is behind where we are, so wait until
494 * it catches up to the same reader point on the
495 * DVD. Then our PTS should be in the same region
502 if( sub->stop > cur->start ) {
504 * The stop time is in the future, so fall through
505 * and we'll deal with it in the next block of
512 * The subtitle is older than this picture, trash it
514 sub = hb_fifo_get( subtitle->fifo_raw );
515 hb_buffer_close( &sub );
518 if( sub && sub->size == 0 )
521 * Continue immediately on subtitle EOF
527 * There is a valid subtitle, is it time to display it?
531 if( sub->stop > sub->start)
534 * Normal subtitle which ends after it starts, check to
535 * see that the current video is between the start and end.
537 if( cur->start > sub->start &&
538 cur->start < sub->stop )
541 * We should be playing this, so leave the
544 * fall through to display
546 if( ( sub->stop - sub->start ) < ( 3 * 90000 ) )
549 * Subtitle is on for less than three seconds, extend
550 * the time that it is displayed to make it easier
551 * to read. Make it 3 seconds or until the next
552 * subtitle is displayed.
554 * This is in response to Indochine which only
555 * displays subs for 1 second - too fast to read.
557 sub->stop = sub->start + ( 3 * 90000 );
559 sub2 = hb_fifo_see2( subtitle->fifo_raw );
561 if( sub2 && sub->stop > sub2->start )
563 sub->stop = sub2->start;
570 * Defer until the play point is within the subtitle
578 * The end of the subtitle is less than the start, this is a
579 * sign of a PTS discontinuity.
581 if( sub->start > cur->start )
584 * we haven't reached the start time yet, or
585 * we have jumped backwards after having
586 * already started this subtitle.
588 if( cur->start < sub->stop )
591 * We have jumped backwards and so should
592 * continue displaying this subtitle.
594 * fall through to display.
600 * Defer until the play point is within the subtitle
606 * Play this subtitle as the start is greater than our
609 * fall through to display/
618 * Got a sub to display...
625 * Adjust the pts of the current frame so that it's contiguous
626 * with the previous frame. The start time of the current frame
627 * has to be the end time of the previous frame and the stop
628 * time has to be the start of the next frame. We don't
629 * make any adjustments to the source timestamps other than removing
630 * the clock offsets (which also removes pts discontinuities).
631 * This means we automatically encode at the source's frame rate.
632 * MP2 uses an implicit duration (frames end when the next frame
633 * starts) but more advanced containers like MP4 use an explicit
634 * duration. Since we're looking ahead one frame we set the
635 * explicit stop time from the start time of the next frame.
638 pv->cur = cur = hb_fifo_get( job->fifo_raw );
639 pv->next_pts = cur->start;
640 int64_t duration = cur->start - buf_tmp->start;
643 hb_log( "sync: invalid video duration %lld, start %lld, next %lld",
644 duration, buf_tmp->start, next->start );
647 buf_tmp->start = pv->next_start;
648 pv->next_start += duration;
649 buf_tmp->stop = pv->next_start;
653 // we have a pending chapter mark from a recent drop - put it on this
654 // buffer (this may make it one frame late but we can't do any better).
655 buf_tmp->new_chap = pv->chap_mark;
659 /* If we have a subtitle for this picture, copy it */
660 /* FIXME: we should avoid this memcpy */
661 if( sub && subtitle &&
662 subtitle->format == PICTURESUB )
666 if( subtitle->dest == RENDERSUB )
669 * Tack onto the video buffer for rendering
671 buf_tmp->sub = hb_buffer_init( sub->size );
672 buf_tmp->sub->x = sub->x;
673 buf_tmp->sub->y = sub->y;
674 buf_tmp->sub->width = sub->width;
675 buf_tmp->sub->height = sub->height;
676 memcpy( buf_tmp->sub->data, sub->data, sub->size );
679 * Pass-Through, pop it off of the raw queue, rewrite times and
680 * make it available to be reencoded.
682 uint64_t sub_duration;
683 sub = hb_fifo_get( subtitle->fifo_raw );
684 sub_duration = sub->stop - sub->start;
685 sub->start = buf_tmp->start;
686 sub->stop = sub->start + duration;
687 hb_fifo_push( subtitle->fifo_sync, sub );
691 * EOF - consume for rendered, else pass through
693 if( subtitle->dest == RENDERSUB )
695 sub = hb_fifo_get( subtitle->fifo_raw );
696 hb_buffer_close( &sub );
698 sub = hb_fifo_get( subtitle->fifo_raw );
699 hb_fifo_push( subtitle->fifo_out, sub );
704 /* Push the frame to the renderer */
705 hb_fifo_push( job->fifo_sync, buf_tmp );
710 if( job->frame_to_stop && pv->count_frames > job->frame_to_stop )
712 // Drop an empty buffer into our output to ensure that things
713 // get flushed all the way out.
714 hb_fifo_push( job->fifo_sync, hb_buffer_init( 0 ) );
716 hb_log( "sync: reached %d frames, exiting early (%i busy)",
717 pv->count_frames, pv->busy );
721 /* Make sure we won't get more frames then expected */
722 if( pv->count_frames >= pv->count_frames_max * 2)
724 hb_log( "sync: got too many frames (%d), exiting early",
727 // Drop an empty buffer into our output to ensure that things
728 // get flushed all the way out.
729 hb_fifo_push( job->fifo_sync, hb_buffer_init( 0 ) );
736 static void OutputAudioFrame( hb_job_t *job, hb_audio_t *audio, hb_buffer_t *buf,
737 hb_sync_audio_t *sync, hb_fifo_t *fifo, int i )
739 int64_t start = sync->next_start;
740 int64_t duration = buf->stop - buf->start;
742 sync->next_pts += duration;
744 if( audio->config.in.samplerate == audio->config.out.samplerate ||
745 audio->config.out.codec == HB_ACODEC_AC3 ||
746 audio->config.out.codec == HB_ACODEC_DCA )
749 * If we don't have to do sample rate conversion or this audio is
750 * pass-thru just send the input buffer downstream after adjusting
751 * its timestamps to make the output stream continuous.
756 /* Not pass-thru - do sample rate conversion */
757 int count_in, count_out;
758 hb_buffer_t * buf_raw = buf;
759 int channel_count = HB_AMIXDOWN_GET_DISCRETE_CHANNEL_COUNT(audio->config.out.mixdown) *
762 count_in = buf_raw->size / channel_count;
764 * When using stupid rates like 44.1 there will always be some
765 * truncation error. E.g., a 1536 sample AC3 frame will turn into a
766 * 1536*44.1/48.0 = 1411.2 sample frame. If we just truncate the .2
767 * the error will build up over time and eventually the audio will
768 * substantially lag the video. libsamplerate will keep track of the
769 * fractional sample & give it to us when appropriate if we give it
770 * an extra sample of space in the output buffer.
772 count_out = ( duration * audio->config.out.samplerate ) / 90000 + 1;
774 sync->data.input_frames = count_in;
775 sync->data.output_frames = count_out;
776 sync->data.src_ratio = (double)audio->config.out.samplerate /
777 (double)audio->config.in.samplerate;
779 buf = hb_buffer_init( count_out * channel_count );
780 sync->data.data_in = (float *) buf_raw->data;
781 sync->data.data_out = (float *) buf->data;
782 if( src_process( sync->state, &sync->data ) )
784 /* XXX If this happens, we're screwed */
785 hb_log( "sync: audio %d src_process failed", i );
787 hb_buffer_close( &buf_raw );
789 buf->size = sync->data.output_frames_gen * channel_count;
790 duration = ( sync->data.output_frames_gen * 90000 ) /
791 audio->config.out.samplerate;
793 buf->frametype = HB_FRAME_AUDIO;
795 buf->stop = start + duration;
796 sync->next_start = start + duration;
797 hb_fifo_push( fifo, buf );
800 /***********************************************************************
802 ***********************************************************************
804 **********************************************************************/
805 static void SyncAudio( hb_work_object_t * w, int i )
807 hb_work_private_t * pv = w->private_data;
808 hb_job_t * job = pv->job;
809 hb_sync_audio_t * sync = &pv->sync_audio[i];
810 hb_audio_t * audio = sync->audio;
815 if( audio->config.out.codec == HB_ACODEC_AC3 ||
816 audio->config.out.codec == HB_ACODEC_DCA )
818 fifo = audio->priv.fifo_out;
822 fifo = audio->priv.fifo_sync;
825 while( !hb_fifo_is_full( fifo ) && ( buf = hb_fifo_see( audio->priv.fifo_raw ) ) )
827 start = buf->start - pv->audio_passthru_slip;
828 /* if the next buffer is an eof send it downstream */
829 if ( buf->size <= 0 )
831 buf = hb_fifo_get( audio->priv.fifo_raw );
832 hb_fifo_push( fifo, buf );
833 pv->busy &=~ (1 << (i + 1) );
836 if( job->frame_to_stop && pv->count_frames >= job->frame_to_stop )
838 hb_fifo_push( fifo, hb_buffer_init(0) );
839 pv->busy &=~ (1 << (i + 1) );
842 if ( (int64_t)( start - sync->next_pts ) < 0 )
844 // audio time went backwards.
845 // If our output clock is more than a half frame ahead of the
846 // input clock drop this frame to move closer to sync.
847 // Otherwise drop frames until the input clock matches the output clock.
848 if ( sync->first_drop || sync->next_start - start > 90*15 )
850 // Discard data that's in the past.
851 if ( sync->first_drop == 0 )
853 sync->first_drop = sync->next_pts;
856 buf = hb_fifo_get( audio->priv.fifo_raw );
857 hb_buffer_close( &buf );
860 sync->next_pts = start;
862 if ( sync->first_drop )
864 // we were dropping old data but input buf time is now current
865 hb_log( "sync: audio %d time went backwards %d ms, dropped %d frames "
866 "(next %lld, current %lld)", i,
867 (int)( sync->next_pts - sync->first_drop ) / 90,
868 sync->drop_count, sync->first_drop, sync->next_pts );
869 sync->first_drop = 0;
870 sync->drop_count = 0;
871 sync->next_pts = start;
873 if ( start - sync->next_pts >= (90 * 70) )
875 if ( start - sync->next_pts > (90000LL * 60) )
877 // there's a gap of more than a minute between the last
878 // frame and this. assume we got a corrupted timestamp
879 // and just drop the next buf.
880 hb_log( "sync: %d minute time gap in audio %d - dropping buf"
881 " start %lld, next %lld",
882 (int)((start - sync->next_pts) / (90000*60)),
883 i, start, sync->next_pts );
884 buf = hb_fifo_get( audio->priv.fifo_raw );
885 hb_buffer_close( &buf );
889 * there's a gap of at least 70ms between the last
890 * frame we processed & the next. Fill it with silence.
891 * Or in the case of DCA, skip some frames from the
894 if( sync->audio->config.out.codec == HB_ACODEC_DCA )
896 hb_log( "sync: audio gap %d ms. Skipping frames. Audio %d"
897 " start %lld, next %lld",
898 (int)((start - sync->next_pts) / 90),
899 i, start, sync->next_pts );
900 pv->audio_passthru_slip += (start - sync->next_pts);
903 hb_log( "sync: adding %d ms of silence to audio %d"
904 " start %lld, next %lld",
905 (int)((start - sync->next_pts) / 90),
906 i, start, sync->next_pts );
907 InsertSilence( w, i, start - sync->next_pts );
912 * When we get here we've taken care of all the dups and gaps in the
913 * audio stream and are ready to inject the next input frame into
916 buf = hb_fifo_get( audio->priv.fifo_raw );
917 OutputAudioFrame( job, audio, buf, sync, fifo, i );
921 static void InsertSilence( hb_work_object_t * w, int i, int64_t duration )
923 hb_work_private_t * pv = w->private_data;
924 hb_job_t *job = pv->job;
925 hb_sync_audio_t *sync = &pv->sync_audio[i];
929 // to keep pass-thru and regular audio in sync we generate silence in
930 // AC3 frame-sized units. If the silence duration isn't an integer multiple
931 // of the AC3 frame duration we will truncate or round up depending on
932 // which minimizes the timing error.
933 const int frame_dur = ( 90000 * AC3_SAMPLES_PER_FRAME ) /
934 sync->audio->config.in.samplerate;
935 int frame_count = ( duration + (frame_dur >> 1) ) / frame_dur;
937 while ( --frame_count >= 0 )
939 if( sync->audio->config.out.codec == HB_ACODEC_AC3 )
941 buf = hb_buffer_init( sync->ac3_size );
942 buf->start = sync->next_pts;
943 buf->stop = buf->start + frame_dur;
944 memcpy( buf->data, sync->ac3_buf, buf->size );
945 fifo = sync->audio->priv.fifo_out;
949 buf = hb_buffer_init( AC3_SAMPLES_PER_FRAME * sizeof( float ) *
950 HB_AMIXDOWN_GET_DISCRETE_CHANNEL_COUNT(
951 sync->audio->config.out.mixdown) );
952 buf->start = sync->next_pts;
953 buf->stop = buf->start + frame_dur;
954 memset( buf->data, 0, buf->size );
955 fifo = sync->audio->priv.fifo_sync;
957 OutputAudioFrame( job, sync->audio, buf, sync, fifo, i );
961 static void UpdateState( hb_work_object_t * w )
963 hb_work_private_t * pv = w->private_data;
966 if( !pv->count_frames )
968 pv->st_first = hb_get_date();
972 if( hb_get_date() > pv->st_dates[3] + 1000 )
974 memmove( &pv->st_dates[0], &pv->st_dates[1],
975 3 * sizeof( uint64_t ) );
976 memmove( &pv->st_counts[0], &pv->st_counts[1],
977 3 * sizeof( uint64_t ) );
978 pv->st_dates[3] = hb_get_date();
979 pv->st_counts[3] = pv->count_frames;
982 #define p state.param.working
983 state.state = HB_STATE_WORKING;
984 p.progress = (float) pv->count_frames / (float) pv->count_frames_max;
985 if( p.progress > 1.0 )
989 p.rate_cur = 1000.0 *
990 (float) ( pv->st_counts[3] - pv->st_counts[0] ) /
991 (float) ( pv->st_dates[3] - pv->st_dates[0] );
992 if( hb_get_date() > pv->st_first + 4000 )
995 p.rate_avg = 1000.0 * (float) pv->st_counts[3] /
996 (float) ( pv->st_dates[3] - pv->st_first );
997 eta = (float) ( pv->count_frames_max - pv->st_counts[3] ) /
999 p.hours = eta / 3600;
1000 p.minutes = ( eta % 3600 ) / 60;
1001 p.seconds = eta % 60;
1012 hb_set_state( pv->job->h, &state );