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 ) );
300 /* At this point we have a frame to process. Let's check
301 1) if we will be able to push into the fifo ahead
302 2) if the next frame is there already, since we need it to
303 compute the duration of the current frame*/
304 while( !hb_fifo_is_full( job->fifo_sync ) &&
305 ( next = hb_fifo_see( job->fifo_raw ) ) )
307 hb_buffer_t * buf_tmp;
309 if( next->size == 0 )
311 /* we got an end-of-stream. Feed it downstream & signal that
312 * we're done. Note that this means we drop the final frame of
313 * video (we don't know its duration). On DVDs the final frame
314 * is often strange and dropping it seems to be a good idea. */
315 hb_fifo_push( job->fifo_sync, hb_buffer_init( 0 ) );
319 if( pv->pts_offset == INT64_MIN )
321 /* This is our first frame */
323 if ( cur->start != 0 )
326 * The first pts from a dvd should always be zero but
327 * can be non-zero with a transport or program stream since
328 * we're not guaranteed to start on an IDR frame. If we get
329 * a non-zero initial PTS extend its duration so it behaves
330 * as if it started at zero so that our audio timing will
333 hb_log( "sync: first pts is %lld", cur->start );
338 if( cur->new_chap ) {
339 hb_log("sync got new chapter %d", cur->new_chap );
343 * since the first frame is always 0 and the upstream reader code
344 * is taking care of adjusting for pts discontinuities, we just have
345 * to deal with the next frame's start being in the past. This can
346 * happen when the PTS is adjusted after data loss but video frame
347 * reordering causes some frames with the old clock to appear after
348 * the clock change. This creates frames that overlap in time which
349 * looks to us like time going backward. The downstream muxing code
350 * can deal with overlaps of up to a frame time but anything larger
351 * we handle by dropping frames here.
353 if ( (int64_t)( next->start - cur->start ) <= 0 ||
354 (int64_t)( (cur->start - pv->audio_passthru_slip ) - pv->next_pts ) < 0 )
356 if ( pv->first_drop == 0 )
358 pv->first_drop = next->start;
361 buf_tmp = hb_fifo_get( job->fifo_raw );
362 if ( buf_tmp->new_chap )
364 // don't drop a chapter mark when we drop the buffer
365 pv->chap_mark = buf_tmp->new_chap;
367 hb_buffer_close( &buf_tmp );
370 if ( pv->first_drop )
372 hb_log( "sync: video time didn't advance - dropped %d frames "
373 "(delta %d ms, current %lld, next %lld, dur %d)",
374 pv->drop_count, (int)( cur->start - pv->first_drop ) / 90,
375 cur->start, next->start, (int)( next->start - cur->start ) );
381 * Track the video sequence number localy so that we can sync the audio
382 * to it using the sequence number as well as the PTS.
384 pv->video_sequence = cur->sequence;
387 * Look for a subtitle for this frame.
389 * If found then it will be tagged onto a video buffer of the correct time and
390 * sent in to the render pipeline. This only needs to be done for VOBSUBs which
391 * get rendered, other types of subtitles can just sit in their raw_queue until
392 * delt with at muxing.
394 for( i = 0; i < hb_list_count( job->list_subtitle ); i++)
396 subtitle = hb_list_item( job->list_subtitle, i );
399 * Rewrite timestamps on subtitles that need it (on raw queue).
401 if( subtitle->source == CCSUB )
404 * Rewrite timestamps on subtitles that came from Closed Captions
405 * since they are using the MPEG2 timestamps.
407 while( ( sub = hb_fifo_see( subtitle->fifo_raw ) ) )
410 * Rewrite the timestamps as and when the video
411 * (cur->start) reaches the same timestamp as a
412 * closed caption (sub->start).
414 * What about discontinuity boundaries - not delt
417 * Bypass the sync fifo altogether.
419 if( sub->size == 0 || sub->start < cur->start )
422 duration = sub->stop - sub->start;
423 sub = hb_fifo_get( subtitle->fifo_raw );
424 sub->start = pv->next_start;
425 sub->stop = sub->start + duration;
426 hb_fifo_push( subtitle->fifo_out, sub );
434 if( subtitle->source == VOBSUB )
437 while( ( sub = hb_fifo_see( subtitle->fifo_raw ) ) )
442 * EOF, pass it through immediately.
447 /* If two subtitles overlap, make the first one stop
448 when the second one starts */
449 sub2 = hb_fifo_see2( subtitle->fifo_raw );
450 if( sub2 && sub->stop > sub2->start )
451 sub->stop = sub2->start;
453 // hb_log("0x%x: video seq: %lld subtitle sequence: %lld",
454 // sub, cur->sequence, sub->sequence);
456 if( sub->sequence > cur->sequence )
459 * The video is behind where we are, so wait until
460 * it catches up to the same reader point on the
461 * DVD. Then our PTS should be in the same region
468 if( sub->stop > cur->start ) {
470 * The stop time is in the future, so fall through
471 * and we'll deal with it in the next block of
478 * The subtitle is older than this picture, trash it
480 sub = hb_fifo_get( subtitle->fifo_raw );
481 hb_buffer_close( &sub );
484 if( sub && sub->size == 0 )
487 * Continue immediately on subtitle EOF
493 * There is a valid subtitle, is it time to display it?
497 if( sub->stop > sub->start)
500 * Normal subtitle which ends after it starts, check to
501 * see that the current video is between the start and end.
503 if( cur->start > sub->start &&
504 cur->start < sub->stop )
507 * We should be playing this, so leave the
510 * fall through to display
512 if( ( sub->stop - sub->start ) < ( 3 * 90000 ) )
515 * Subtitle is on for less than three seconds, extend
516 * the time that it is displayed to make it easier
517 * to read. Make it 3 seconds or until the next
518 * subtitle is displayed.
520 * This is in response to Indochine which only
521 * displays subs for 1 second - too fast to read.
523 sub->stop = sub->start + ( 3 * 90000 );
525 sub2 = hb_fifo_see2( subtitle->fifo_raw );
527 if( sub2 && sub->stop > sub2->start )
529 sub->stop = sub2->start;
536 * Defer until the play point is within the subtitle
544 * The end of the subtitle is less than the start, this is a
545 * sign of a PTS discontinuity.
547 if( sub->start > cur->start )
550 * we haven't reached the start time yet, or
551 * we have jumped backwards after having
552 * already started this subtitle.
554 if( cur->start < sub->stop )
557 * We have jumped backwards and so should
558 * continue displaying this subtitle.
560 * fall through to display.
566 * Defer until the play point is within the subtitle
572 * Play this subtitle as the start is greater than our
575 * fall through to display/
584 * Got a sub to display...
591 * Adjust the pts of the current frame so that it's contiguous
592 * with the previous frame. The start time of the current frame
593 * has to be the end time of the previous frame and the stop
594 * time has to be the start of the next frame. We don't
595 * make any adjustments to the source timestamps other than removing
596 * the clock offsets (which also removes pts discontinuities).
597 * This means we automatically encode at the source's frame rate.
598 * MP2 uses an implicit duration (frames end when the next frame
599 * starts) but more advanced containers like MP4 use an explicit
600 * duration. Since we're looking ahead one frame we set the
601 * explicit stop time from the start time of the next frame.
604 pv->cur = cur = hb_fifo_get( job->fifo_raw );
605 pv->next_pts = cur->start;
606 int64_t duration = cur->start - buf_tmp->start;
609 hb_log( "sync: invalid video duration %lld, start %lld, next %lld",
610 duration, buf_tmp->start, next->start );
613 buf_tmp->start = pv->next_start;
614 pv->next_start += duration;
615 buf_tmp->stop = pv->next_start;
619 // we have a pending chapter mark from a recent drop - put it on this
620 // buffer (this may make it one frame late but we can't do any better).
621 buf_tmp->new_chap = pv->chap_mark;
625 /* If we have a subtitle for this picture, copy it */
626 /* FIXME: we should avoid this memcpy */
627 if( sub && subtitle &&
628 subtitle->format == PICTURESUB )
632 if( subtitle->dest == RENDERSUB )
635 * Tack onto the video buffer for rendering
637 buf_tmp->sub = hb_buffer_init( sub->size );
638 buf_tmp->sub->x = sub->x;
639 buf_tmp->sub->y = sub->y;
640 buf_tmp->sub->width = sub->width;
641 buf_tmp->sub->height = sub->height;
642 memcpy( buf_tmp->sub->data, sub->data, sub->size );
645 * Pass-Through, pop it off of the raw queue, rewrite times and
646 * make it available to be reencoded.
648 uint64_t sub_duration;
649 sub = hb_fifo_get( subtitle->fifo_raw );
650 sub_duration = sub->stop - sub->start;
651 sub->start = buf_tmp->start;
652 sub->stop = sub->start + duration;
653 hb_fifo_push( subtitle->fifo_sync, sub );
657 * EOF - consume for rendered, else pass through
659 if( subtitle->dest == RENDERSUB )
661 sub = hb_fifo_get( subtitle->fifo_raw );
662 hb_buffer_close( &sub );
664 sub = hb_fifo_get( subtitle->fifo_raw );
665 hb_fifo_push( subtitle->fifo_out, sub );
670 /* Push the frame to the renderer */
671 hb_fifo_push( job->fifo_sync, buf_tmp );
676 if( job->frame_to_stop && pv->count_frames > job->frame_to_stop )
678 // Drop an empty buffer into our output to ensure that things
679 // get flushed all the way out.
680 hb_fifo_push( job->fifo_sync, hb_buffer_init( 0 ) );
682 hb_log( "sync: reached %d frames, exiting early (%i busy)",
683 pv->count_frames, pv->busy );
687 /* Make sure we won't get more frames then expected */
688 if( pv->count_frames >= pv->count_frames_max * 2)
690 hb_log( "sync: got too many frames (%d), exiting early",
693 // Drop an empty buffer into our output to ensure that things
694 // get flushed all the way out.
695 hb_fifo_push( job->fifo_sync, hb_buffer_init( 0 ) );
702 static void OutputAudioFrame( hb_job_t *job, hb_audio_t *audio, hb_buffer_t *buf,
703 hb_sync_audio_t *sync, hb_fifo_t *fifo, int i )
705 int64_t start = sync->next_start;
706 int64_t duration = buf->stop - buf->start;
708 sync->next_pts += duration;
710 if( audio->config.in.samplerate == audio->config.out.samplerate ||
711 audio->config.out.codec == HB_ACODEC_AC3 ||
712 audio->config.out.codec == HB_ACODEC_DCA )
715 * If we don't have to do sample rate conversion or this audio is
716 * pass-thru just send the input buffer downstream after adjusting
717 * its timestamps to make the output stream continuous.
722 /* Not pass-thru - do sample rate conversion */
723 int count_in, count_out;
724 hb_buffer_t * buf_raw = buf;
725 int channel_count = HB_AMIXDOWN_GET_DISCRETE_CHANNEL_COUNT(audio->config.out.mixdown) *
728 count_in = buf_raw->size / channel_count;
730 * When using stupid rates like 44.1 there will always be some
731 * truncation error. E.g., a 1536 sample AC3 frame will turn into a
732 * 1536*44.1/48.0 = 1411.2 sample frame. If we just truncate the .2
733 * the error will build up over time and eventually the audio will
734 * substantially lag the video. libsamplerate will keep track of the
735 * fractional sample & give it to us when appropriate if we give it
736 * an extra sample of space in the output buffer.
738 count_out = ( duration * audio->config.out.samplerate ) / 90000 + 1;
740 sync->data.input_frames = count_in;
741 sync->data.output_frames = count_out;
742 sync->data.src_ratio = (double)audio->config.out.samplerate /
743 (double)audio->config.in.samplerate;
745 buf = hb_buffer_init( count_out * channel_count );
746 sync->data.data_in = (float *) buf_raw->data;
747 sync->data.data_out = (float *) buf->data;
748 if( src_process( sync->state, &sync->data ) )
750 /* XXX If this happens, we're screwed */
751 hb_log( "sync: audio %d src_process failed", i );
753 hb_buffer_close( &buf_raw );
755 buf->size = sync->data.output_frames_gen * channel_count;
756 duration = ( sync->data.output_frames_gen * 90000 ) /
757 audio->config.out.samplerate;
759 buf->frametype = HB_FRAME_AUDIO;
761 buf->stop = start + duration;
762 sync->next_start = start + duration;
763 hb_fifo_push( fifo, buf );
766 /***********************************************************************
768 ***********************************************************************
770 **********************************************************************/
771 static void SyncAudio( hb_work_object_t * w, int i )
773 hb_work_private_t * pv = w->private_data;
774 hb_job_t * job = pv->job;
775 hb_sync_audio_t * sync = &pv->sync_audio[i];
776 hb_audio_t * audio = sync->audio;
781 if( audio->config.out.codec == HB_ACODEC_AC3 ||
782 audio->config.out.codec == HB_ACODEC_DCA )
784 fifo = audio->priv.fifo_out;
788 fifo = audio->priv.fifo_sync;
791 while( !hb_fifo_is_full( fifo ) && ( buf = hb_fifo_see( audio->priv.fifo_raw ) ) )
793 start = buf->start - pv->audio_passthru_slip;
794 /* if the next buffer is an eof send it downstream */
795 if ( buf->size <= 0 )
797 buf = hb_fifo_get( audio->priv.fifo_raw );
798 hb_fifo_push( fifo, buf );
799 pv->busy &=~ (1 << (i + 1) );
802 if( job->frame_to_stop && pv->count_frames >= job->frame_to_stop )
804 hb_fifo_push( fifo, hb_buffer_init(0) );
805 pv->busy &=~ (1 << (i + 1) );
808 if ( (int64_t)( start - sync->next_pts ) < 0 )
810 // audio time went backwards.
811 // If our output clock is more than a half frame ahead of the
812 // input clock drop this frame to move closer to sync.
813 // Otherwise drop frames until the input clock matches the output clock.
814 if ( sync->first_drop || sync->next_start - start > 90*15 )
816 // Discard data that's in the past.
817 if ( sync->first_drop == 0 )
819 sync->first_drop = sync->next_pts;
822 buf = hb_fifo_get( audio->priv.fifo_raw );
823 hb_buffer_close( &buf );
826 sync->next_pts = start;
828 if ( sync->first_drop )
830 // we were dropping old data but input buf time is now current
831 hb_log( "sync: audio %d time went backwards %d ms, dropped %d frames "
832 "(next %lld, current %lld)", i,
833 (int)( sync->next_pts - sync->first_drop ) / 90,
834 sync->drop_count, sync->first_drop, sync->next_pts );
835 sync->first_drop = 0;
836 sync->drop_count = 0;
837 sync->next_pts = start;
839 if ( start - sync->next_pts >= (90 * 70) )
841 if ( start - sync->next_pts > (90000LL * 60) )
843 // there's a gap of more than a minute between the last
844 // frame and this. assume we got a corrupted timestamp
845 // and just drop the next buf.
846 hb_log( "sync: %d minute time gap in audio %d - dropping buf"
847 " start %lld, next %lld",
848 (int)((start - sync->next_pts) / (90000*60)),
849 i, start, sync->next_pts );
850 buf = hb_fifo_get( audio->priv.fifo_raw );
851 hb_buffer_close( &buf );
855 * there's a gap of at least 70ms between the last
856 * frame we processed & the next. Fill it with silence.
857 * Or in the case of DCA, skip some frames from the
860 if( sync->audio->config.out.codec == HB_ACODEC_DCA )
862 hb_log( "sync: audio gap %d ms. Skipping frames. Audio %d"
863 " start %lld, next %lld",
864 (int)((start - sync->next_pts) / 90),
865 i, start, sync->next_pts );
866 pv->audio_passthru_slip += (start - sync->next_pts);
869 hb_log( "sync: adding %d ms of silence to audio %d"
870 " start %lld, next %lld",
871 (int)((start - sync->next_pts) / 90),
872 i, start, sync->next_pts );
873 InsertSilence( w, i, start - sync->next_pts );
878 * When we get here we've taken care of all the dups and gaps in the
879 * audio stream and are ready to inject the next input frame into
882 buf = hb_fifo_get( audio->priv.fifo_raw );
883 OutputAudioFrame( job, audio, buf, sync, fifo, i );
887 static void InsertSilence( hb_work_object_t * w, int i, int64_t duration )
889 hb_work_private_t * pv = w->private_data;
890 hb_job_t *job = pv->job;
891 hb_sync_audio_t *sync = &pv->sync_audio[i];
895 // to keep pass-thru and regular audio in sync we generate silence in
896 // AC3 frame-sized units. If the silence duration isn't an integer multiple
897 // of the AC3 frame duration we will truncate or round up depending on
898 // which minimizes the timing error.
899 const int frame_dur = ( 90000 * AC3_SAMPLES_PER_FRAME ) /
900 sync->audio->config.in.samplerate;
901 int frame_count = ( duration + (frame_dur >> 1) ) / frame_dur;
903 while ( --frame_count >= 0 )
905 if( sync->audio->config.out.codec == HB_ACODEC_AC3 )
907 buf = hb_buffer_init( sync->ac3_size );
908 buf->start = sync->next_pts;
909 buf->stop = buf->start + frame_dur;
910 memcpy( buf->data, sync->ac3_buf, buf->size );
911 fifo = sync->audio->priv.fifo_out;
915 buf = hb_buffer_init( AC3_SAMPLES_PER_FRAME * sizeof( float ) *
916 HB_AMIXDOWN_GET_DISCRETE_CHANNEL_COUNT(
917 sync->audio->config.out.mixdown) );
918 buf->start = sync->next_pts;
919 buf->stop = buf->start + frame_dur;
920 memset( buf->data, 0, buf->size );
921 fifo = sync->audio->priv.fifo_sync;
923 OutputAudioFrame( job, sync->audio, buf, sync, fifo, i );
927 static void UpdateState( hb_work_object_t * w )
929 hb_work_private_t * pv = w->private_data;
932 if( !pv->count_frames )
934 pv->st_first = hb_get_date();
938 if( hb_get_date() > pv->st_dates[3] + 1000 )
940 memmove( &pv->st_dates[0], &pv->st_dates[1],
941 3 * sizeof( uint64_t ) );
942 memmove( &pv->st_counts[0], &pv->st_counts[1],
943 3 * sizeof( uint64_t ) );
944 pv->st_dates[3] = hb_get_date();
945 pv->st_counts[3] = pv->count_frames;
948 #define p state.param.working
949 state.state = HB_STATE_WORKING;
950 p.progress = (float) pv->count_frames / (float) pv->count_frames_max;
951 if( p.progress > 1.0 )
955 p.rate_cur = 1000.0 *
956 (float) ( pv->st_counts[3] - pv->st_counts[0] ) /
957 (float) ( pv->st_dates[3] - pv->st_dates[0] );
958 if( hb_get_date() > pv->st_first + 4000 )
961 p.rate_avg = 1000.0 * (float) pv->st_counts[3] /
962 (float) ( pv->st_dates[3] - pv->st_first );
963 eta = (float) ( pv->count_frames_max - pv->st_counts[3] ) /
965 p.hours = eta / 3600;
966 p.minutes = ( eta % 3600 ) / 60;
967 p.seconds = eta % 60;
978 hb_set_state( pv->job->h, &state );