/* $Id: sync.c,v 1.38 2005/04/14 21:57:58 titer Exp $
This file is part of the HandBrake source code.
- Homepage: <http://handbrake.m0k.org/>.
+ Homepage: <http://handbrake.fr/>.
It may be used under the terms of the GNU General Public License. */
#include "hb.h"
-
+#include "hbffmpeg.h"
+#include <stdio.h>
#include "samplerate.h"
-#include "ffmpeg/avcodec.h"
#ifdef INT64_MIN
#undef INT64_MIN /* Because it isn't defined correctly in Zeta */
typedef struct
{
- hb_audio_t * audio;
+ hb_lock_t * mutex;
+ int ref; /* Reference count to tell us when it's unused */
+ int count_frames;
+ int64_t audio_passthru_slip;
+ int64_t video_pts_slip;
+ int64_t pts_offset;
+
+ /* Frame based point-to-point support */
+ int64_t audio_pts_thresh;
+ int start_found;
+ hb_cond_t * next_frame;
+ int pts_count;
+ int64_t * first_pts;
+} hb_sync_common_t;
+typedef struct
+{
+ int index;
int64_t next_start; /* start time of next output frame */
- int64_t next_pts; /* start time of next input frame */
- int64_t start_silence; /* if we're inserting silence, the time we started */
- int64_t first_drop; /* PTS of first 'went backwards' frame dropped */
- int drop_count; /* count of 'time went backwards' drops */
- int inserting_silence;
+ int64_t next_pts; /* start time of next input frame */
+ int64_t first_drop; /* PTS of first 'went backwards' frame dropped */
+ int drop_count; /* count of 'time went backwards' drops */
/* Raw */
SRC_STATE * state;
/* AC-3 */
int ac3_size;
uint8_t * ac3_buf;
-
} hb_sync_audio_t;
-struct hb_work_private_s
+typedef struct
{
- hb_job_t * job;
- int done;
-
/* Video */
- hb_subtitle_t * subtitle;
- int64_t pts_offset;
- int64_t next_start; /* start time of next output frame */
- int64_t next_pts; /* start time of next input frame */
- int64_t first_drop; /* PTS of first 'went backwards' frame dropped */
- int drop_count; /* count of 'time went backwards' drops */
- int video_sequence;
- int count_frames;
- int count_frames_max;
- int chap_mark; /* to propagate chapter mark across a drop */
- hb_buffer_t * cur; /* The next picture to process */
-
- /* Audio */
- hb_sync_audio_t sync_audio[8];
+ int first_frame;
+ int64_t pts_skip;
+ int64_t next_start; /* start time of next output frame */
+ int64_t next_pts; /* start time of next input frame */
+ int64_t first_drop; /* PTS of first 'went backwards' frame dropped */
+ int drop_count; /* count of 'time went backwards' drops */
+ int drops; /* frames dropped to make a cbr video stream */
+ int dups; /* frames duplicated to make a cbr video stream */
+ int video_sequence;
+ int count_frames_max;
+ int chap_mark; /* to propagate chapter mark across a drop */
+ hb_buffer_t * cur; /* The next picture to process */
/* Statistics */
- uint64_t st_counts[4];
- uint64_t st_dates[4];
- uint64_t st_first;
+ uint64_t st_counts[4];
+ uint64_t st_dates[4];
+ uint64_t st_first;
+} hb_sync_video_t;
+
+struct hb_work_private_s
+{
+ hb_job_t * job;
+ hb_sync_common_t * common;
+ union
+ {
+ hb_sync_video_t video;
+ hb_sync_audio_t audio;
+ } type;
};
/***********************************************************************
* Local prototypes
**********************************************************************/
-static void InitAudio( hb_work_object_t * w, int i );
-static int SyncVideo( hb_work_object_t * w );
-static void SyncAudio( hb_work_object_t * w, int i );
-static int NeedSilence( hb_work_object_t * w, hb_audio_t *, int i );
-static void InsertSilence( hb_work_object_t * w, int i, int64_t d );
+static void getPtsOffset( hb_work_object_t * w );
+static int checkPtsOffset( hb_work_object_t * w );
+static void InitAudio( hb_job_t * job, hb_sync_common_t * common, int i );
+static void InsertSilence( hb_work_object_t * w, int64_t d );
static void UpdateState( hb_work_object_t * w );
+static void UpdateSearchState( hb_work_object_t * w, int64_t start );
+static hb_buffer_t * OutputAudioFrame( hb_audio_t *audio, hb_buffer_t *buf,
+ hb_sync_audio_t *sync );
/***********************************************************************
* hb_work_sync_init
***********************************************************************
* Initialize the work object
**********************************************************************/
-int syncInit( hb_work_object_t * w, hb_job_t * job )
+hb_work_object_t * hb_sync_init( hb_job_t * job )
{
- hb_title_t * title = job->title;
- hb_chapter_t * chapter;
- int i;
- uint64_t duration;
+ hb_title_t * title = job->title;
+ hb_chapter_t * chapter;
+ int i;
+ uint64_t duration;
hb_work_private_t * pv;
+ hb_sync_video_t * sync;
+ hb_work_object_t * w;
+ hb_work_object_t * ret = NULL;
pv = calloc( 1, sizeof( hb_work_private_t ) );
+ sync = &pv->type.video;
+ pv->common = calloc( 1, sizeof( hb_sync_common_t ) );
+ pv->common->ref++;
+ pv->common->mutex = hb_lock_init();
+ pv->common->audio_pts_thresh = -1;
+ pv->common->next_frame = hb_cond_init();
+ pv->common->pts_count = 1;
+ if ( job->frame_to_start || job->pts_to_start )
+ {
+ pv->common->start_found = 0;
+ }
+ else
+ {
+ pv->common->start_found = 1;
+ }
+
+ ret = w = hb_get_work( WORK_SYNC_VIDEO );
w->private_data = pv;
+ w->fifo_in = job->fifo_raw;
+ w->fifo_out = job->fifo_sync;
pv->job = job;
- pv->pts_offset = INT64_MIN;
- pv->count_frames = 0;
+ pv->common->pts_offset = INT64_MIN;
+ sync->first_frame = 1;
- /* Calculate how many video frames we are expecting */
- duration = 0;
- for( i = job->chapter_start; i <= job->chapter_end; i++ )
+ if( job->pass == 2 )
{
- chapter = hb_list_item( title->list_chapter, i - 1 );
- duration += chapter->duration;
+ /* We already have an accurate frame count from pass 1 */
+ hb_interjob_t * interjob = hb_interjob_get( job->h );
+ sync->count_frames_max = interjob->frame_count;
+ }
+ else
+ {
+ /* Calculate how many video frames we are expecting */
+ if ( job->pts_to_stop )
+ {
+ duration = job->pts_to_stop + 90000;
+ }
+ else if( job->frame_to_stop )
+ {
+ /* Set the duration to a rough estimate */
+ duration = ( job->frame_to_stop / ( title->rate / title->rate_base ) ) * 90000;
+ }
+ else
+ {
+ duration = 0;
+ for( i = job->chapter_start; i <= job->chapter_end; i++ )
+ {
+ chapter = hb_list_item( title->list_chapter, i - 1 );
+ duration += chapter->duration;
+ }
+ duration += 90000;
+ /* 1 second safety so we're sure we won't miss anything */
+ }
+ sync->count_frames_max = duration * title->rate / title->rate_base / 90000;
}
- duration += 90000;
- /* 1 second safety so we're sure we won't miss anything */
- pv->count_frames_max = duration * job->vrate / job->vrate_base / 90000;
- hb_log( "sync: expecting %d video frames", pv->count_frames_max );
+ hb_log( "sync: expecting %d video frames", sync->count_frames_max );
/* Initialize libsamplerate for every audio track we have */
- for( i = 0; i < hb_list_count( title->list_audio ); i++ )
+ if ( ! job->indepth_scan )
{
- InitAudio( w, i );
+ for( i = 0; i < hb_list_count( title->list_audio ) && i < 8; i++ )
+ {
+ InitAudio( job, pv->common, i );
+ }
}
+ pv->common->first_pts = malloc( sizeof(int64_t) * pv->common->pts_count );
+ for ( i = 0; i < pv->common->pts_count; i++ )
+ pv->common->first_pts[i] = INT64_MAX;
- /* Get subtitle info, if any */
- pv->subtitle = hb_list_item( title->list_subtitle, 0 );
-
- pv->video_sequence = 0;
-
- return 0;
+ return ret;
}
/***********************************************************************
- * Close
+ * Close Video
***********************************************************************
*
**********************************************************************/
-void syncClose( hb_work_object_t * w )
+void syncVideoClose( hb_work_object_t * w )
{
hb_work_private_t * pv = w->private_data;
hb_job_t * job = pv->job;
- hb_title_t * title = job->title;
- hb_audio_t * audio = NULL;
+ hb_sync_video_t * sync = &pv->type.video;
- int i;
+ // Wake up audio sync if it's still waiting on condition.
+ pv->common->pts_offset = 0;
+ pv->common->start_found = 1;
+ hb_cond_broadcast( pv->common->next_frame );
+
+ if( sync->cur )
+ {
+ hb_buffer_close( &sync->cur );
+ }
- if( pv->cur ) hb_buffer_close( &pv->cur );
+ hb_log( "sync: got %d frames, %d expected",
+ pv->common->count_frames, sync->count_frames_max );
- for( i = 0; i < hb_list_count( title->list_audio ); i++ )
+ /* save data for second pass */
+ if( job->pass == 1 )
{
- if ( pv->sync_audio[i].start_silence )
- {
- hb_log( "sync: added %d ms of silence to audio %d",
- (int)((pv->sync_audio[i].next_pts -
- pv->sync_audio[i].start_silence) / 90), i );
- }
+ /* Preserve frame count for better accuracy in pass 2 */
+ hb_interjob_t * interjob = hb_interjob_get( job->h );
+ interjob->frame_count = pv->common->count_frames;
+ interjob->last_job = job->sequence_id;
+ interjob->total_time = sync->next_start;
+ }
- audio = hb_list_item( title->list_audio, i );
- if( audio->config.out.codec == HB_ACODEC_AC3 )
- {
- free( pv->sync_audio[i].ac3_buf );
- }
- else
- {
- src_delete( pv->sync_audio[i].state );
- }
+ if (sync->drops || sync->dups )
+ {
+ hb_log( "sync: %d frames dropped, %d duplicated",
+ sync->drops, sync->dups );
+ }
+
+ hb_lock( pv->common->mutex );
+ if ( --pv->common->ref == 0 )
+ {
+ hb_unlock( pv->common->mutex );
+ hb_lock_close( &pv->common->mutex );
+ free( pv->common );
+ }
+ else
+ {
+ hb_unlock( pv->common->mutex );
}
free( pv );
}
/***********************************************************************
- * Work
+ * syncVideoWork
***********************************************************************
- * The root routine of this work abject
- *
- * The way this works is that we are syncing the audio to the PTS of
- * the last video that we processed. That's why we skip the audio sync
- * if we haven't got a valid PTS from the video yet.
*
**********************************************************************/
-int syncWork( hb_work_object_t * w, hb_buffer_t ** unused1,
- hb_buffer_t ** unused2 )
+int syncVideoWork( hb_work_object_t * w, hb_buffer_t ** buf_in,
+ hb_buffer_t ** buf_out )
{
+ hb_buffer_t * cur, * next, * sub = NULL;
hb_work_private_t * pv = w->private_data;
+ hb_job_t * job = pv->job;
+ hb_subtitle_t * subtitle;
+ hb_sync_video_t * sync = &pv->type.video;
int i;
- /* If we ever got a video frame, handle audio now */
- if( pv->pts_offset != INT64_MIN )
- {
- for( i = 0; i < hb_list_count( pv->job->title->list_audio ); i++ )
- {
- SyncAudio( w, i );
- }
- }
-
- /* Handle video */
- return SyncVideo( w );
-}
-
-hb_work_object_t hb_sync =
-{
- WORK_SYNC,
- "Synchronization",
- syncInit,
- syncWork,
- syncClose
-};
-
-static void InitAudio( hb_work_object_t * w, int i )
-{
- hb_work_private_t * pv = w->private_data;
- hb_job_t * job = pv->job;
- hb_title_t * title = job->title;
- hb_sync_audio_t * sync;
-
- sync = &pv->sync_audio[i];
- sync->audio = hb_list_item( title->list_audio, i );
+ *buf_out = NULL;
+ next = *buf_in;
+ *buf_in = NULL;
- if( sync->audio->config.out.codec == HB_ACODEC_AC3 )
+ /* Wait for start of point-to-point encoding */
+ if( !pv->common->start_found )
{
- /* Have a silent AC-3 frame ready in case we have to fill a
- gap */
- AVCodec * codec;
- AVCodecContext * c;
- short * zeros;
-
- codec = avcodec_find_encoder( CODEC_ID_AC3 );
- c = avcodec_alloc_context();
+ hb_sync_video_t * sync = &pv->type.video;
- c->bit_rate = sync->audio->config.in.bitrate;
- c->sample_rate = sync->audio->config.in.samplerate;
- c->channels = HB_INPUT_CH_LAYOUT_GET_DISCRETE_COUNT( sync->audio->config.in.channel_layout );
-
- if( avcodec_open( c, codec ) < 0 )
+ if( next->size == 0 )
{
- hb_log( "sync: avcodec_open failed" );
- return;
+ *buf_out = next;
+ pv->common->start_found = 1;
+ hb_cond_broadcast( pv->common->next_frame );
+
+ /*
+ * Push through any subtitle EOFs in case they
+ * were not synced through.
+ */
+ for( i = 0; i < hb_list_count( job->list_subtitle ); i++)
+ {
+ subtitle = hb_list_item( job->list_subtitle, i );
+ if( subtitle->config.dest == PASSTHRUSUB )
+ {
+ if( subtitle->source == VOBSUB )
+ hb_fifo_push( subtitle->fifo_sync, hb_buffer_init( 0 ) );
+ else
+ hb_fifo_push( subtitle->fifo_out, hb_buffer_init( 0 ) );
+ }
+ }
+ return HB_WORK_DONE;
}
+ if ( pv->common->count_frames < job->frame_to_start ||
+ next->start < job->pts_to_start )
+ {
+ // Flush any subtitles that have pts prior to the
+ // current frame
+ for( i = 0; i < hb_list_count( job->list_subtitle ); i++)
+ {
+ subtitle = hb_list_item( job->list_subtitle, i );
+ while( ( sub = hb_fifo_see( subtitle->fifo_raw ) ) )
+ {
+ if ( sub->start > next->start )
+ break;
+ sub = hb_fifo_get( subtitle->fifo_raw );
+ hb_buffer_close( &sub );
+ }
+ }
+ hb_lock( pv->common->mutex );
+ // Tell the audio threads what must be dropped
+ pv->common->audio_pts_thresh = next->start;
+ hb_cond_broadcast( pv->common->next_frame );
+ hb_unlock( pv->common->mutex );
- zeros = calloc( AC3_SAMPLES_PER_FRAME *
- sizeof( short ) * c->channels, 1 );
- sync->ac3_size = sync->audio->config.in.bitrate * AC3_SAMPLES_PER_FRAME /
- sync->audio->config.in.samplerate / 8;
- sync->ac3_buf = malloc( sync->ac3_size );
+ UpdateSearchState( w, next->start );
+ hb_buffer_close( &next );
- if( avcodec_encode_audio( c, sync->ac3_buf, sync->ac3_size,
- zeros ) != sync->ac3_size )
- {
- hb_log( "sync: avcodec_encode_audio failed" );
+ return HB_WORK_OK;
}
-
- free( zeros );
- avcodec_close( c );
- av_free( c );
- }
- else
- {
- /* Initialize libsamplerate */
- int error;
- sync->state = src_new( SRC_LINEAR, HB_AMIXDOWN_GET_DISCRETE_CHANNEL_COUNT(sync->audio->config.out.mixdown), &error );
- sync->data.end_of_input = 0;
+ hb_lock( pv->common->mutex );
+ pv->common->start_found = 1;
+ pv->common->count_frames = 0;
+ hb_cond_broadcast( pv->common->next_frame );
+ hb_unlock( pv->common->mutex );
+ sync->st_first = 0;
}
-}
-
-/***********************************************************************
- * SyncVideo
- ***********************************************************************
- *
- **********************************************************************/
-static int SyncVideo( hb_work_object_t * w )
-{
- hb_work_private_t * pv = w->private_data;
- hb_buffer_t * cur, * next, * sub = NULL;
- hb_job_t * job = pv->job;
- if( pv->done )
+ /* Wait till we can determine the initial pts of all streams */
+ if( pv->common->pts_offset == INT64_MIN )
{
- return HB_WORK_DONE;
+ pv->common->first_pts[0] = next->start;
+ hb_lock( pv->common->mutex );
+ while( pv->common->pts_offset == INT64_MIN )
+ {
+ // Full fifos will make us wait forever, so get the
+ // pts offset from the available streams if full
+ if ( hb_fifo_is_full( job->fifo_raw ) )
+ {
+ getPtsOffset( w );
+ hb_cond_broadcast( pv->common->next_frame );
+ }
+ else if ( checkPtsOffset( w ) )
+ hb_cond_broadcast( pv->common->next_frame );
+ else
+ hb_cond_timedwait( pv->common->next_frame, pv->common->mutex, 200 );
+ }
+ hb_unlock( pv->common->mutex );
}
- if( hb_thread_has_exited( job->reader ) &&
- !hb_fifo_size( job->fifo_mpeg2 ) &&
- !hb_fifo_size( job->fifo_raw ) )
+ if( !sync->cur )
{
- /* All video data has been processed already, we won't get
- more */
- hb_log( "sync: got %d frames, %d expected",
- pv->count_frames, pv->count_frames_max );
- pv->done = 1;
-
- hb_buffer_t * buf_tmp;
-
- // Drop an empty buffer into our output to ensure that things
- // get flushed all the way out.
- buf_tmp = hb_buffer_init(0); // Empty end buffer
- hb_fifo_push( job->fifo_sync, buf_tmp );
+ sync->cur = next;
+ if( sync->cur->size == 0 )
+ {
+ /* we got an end-of-stream as our first video packet?
+ * Feed it downstream & signal that we're done.
+ */
+ *buf_out = hb_buffer_init( 0 );
- return HB_WORK_DONE;
- }
+ pv->common->start_found = 1;
+ hb_cond_broadcast( pv->common->next_frame );
- if( !pv->cur && !( pv->cur = hb_fifo_get( job->fifo_raw ) ) )
- {
- /* We haven't even got a frame yet */
+ /*
+ * Push through any subtitle EOFs in case they
+ * were not synced through.
+ */
+ for( i = 0; i < hb_list_count( job->list_subtitle ); i++)
+ {
+ subtitle = hb_list_item( job->list_subtitle, i );
+ if( subtitle->config.dest == PASSTHRUSUB )
+ {
+ if( subtitle->source == VOBSUB )
+ hb_fifo_push( subtitle->fifo_sync, hb_buffer_init( 0 ) );
+ else
+ hb_fifo_push( subtitle->fifo_out, hb_buffer_init( 0 ) );
+ }
+ }
+ return HB_WORK_DONE;
+ }
return HB_WORK_OK;
}
- cur = pv->cur;
-
+ cur = sync->cur;
/* At this point we have a frame to process. Let's check
1) if we will be able to push into the fifo ahead
2) if the next frame is there already, since we need it to
compute the duration of the current frame*/
- while( !hb_fifo_is_full( job->fifo_sync ) &&
- ( next = hb_fifo_see( job->fifo_raw ) ) )
+ if( next->size == 0 )
{
- hb_buffer_t * buf_tmp;
+ hb_buffer_close( &next );
+
+ cur->start = sync->next_start;
+ cur->stop = cur->start + 90000. / ((double)job->vrate / (double)job->vrate_base);
- if( pv->pts_offset == INT64_MIN )
+ /* Make sure last frame is reflected in frame count */
+ pv->common->count_frames++;
+
+ /* Push the frame to the renderer */
+ hb_fifo_push( job->fifo_sync, cur );
+ sync->cur = NULL;
+
+ /* we got an end-of-stream. Feed it downstream & signal that
+ * we're done. Note that this means we drop the final frame of
+ * video (we don't know its duration). On DVDs the final frame
+ * is often strange and dropping it seems to be a good idea. */
+ *buf_out = hb_buffer_init( 0 );
+
+ /*
+ * Push through any subtitle EOFs in case they were not synced through.
+ */
+ for( i = 0; i < hb_list_count( job->list_subtitle ); i++)
{
- /* This is our first frame */
- pv->pts_offset = 0;
- if ( cur->start != 0 )
+ subtitle = hb_list_item( job->list_subtitle, i );
+ if( subtitle->config.dest == PASSTHRUSUB )
{
- /*
- * The first pts from a dvd should always be zero but
- * can be non-zero with a transport or program stream since
- * we're not guaranteed to start on an IDR frame. If we get
- * a non-zero initial PTS extend its duration so it behaves
- * as if it started at zero so that our audio timing will
- * be in sync.
- */
- hb_log( "sync: first pts is %lld", cur->start );
- cur->start = 0;
+ if( subtitle->source == VOBSUB )
+ hb_fifo_push( subtitle->fifo_sync, hb_buffer_init( 0 ) );
+ else
+ hb_fifo_push( subtitle->fifo_out, hb_buffer_init( 0 ) );
}
}
+ pv->common->start_found = 1;
+ hb_cond_broadcast( pv->common->next_frame );
+ return HB_WORK_DONE;
+ }
+
+ /* Check for end of point-to-point frame encoding */
+ if( job->frame_to_stop && pv->common->count_frames > job->frame_to_stop )
+ {
+ // Drop an empty buffer into our output to ensure that things
+ // get flushed all the way out.
+ hb_buffer_close( &sync->cur );
+ hb_buffer_close( &next );
+ *buf_out = hb_buffer_init( 0 );
+ hb_log( "sync: reached %d frames, exiting early",
+ pv->common->count_frames );
/*
- * since the first frame is always 0 and the upstream reader code
- * is taking care of adjusting for pts discontinuities, we just have
- * to deal with the next frame's start being in the past. This can
- * happen when the PTS is adjusted after data loss but video frame
- * reordering causes some frames with the old clock to appear after
- * the clock change. This creates frames that overlap in time which
- * looks to us like time going backward. The downstream muxing code
- * can deal with overlaps of up to a frame time but anything larger
- * we handle by dropping frames here.
+ * Push through any subtitle EOFs in case they were not synced through.
*/
- if ( (int64_t)( next->start - pv->next_pts ) <= 0 )
+ for( i = 0; i < hb_list_count( job->list_subtitle ); i++)
{
- if ( pv->first_drop == 0 )
+ subtitle = hb_list_item( job->list_subtitle, i );
+ if( subtitle->config.dest == PASSTHRUSUB )
{
- pv->first_drop = next->start;
+ if( subtitle->source == VOBSUB )
+ hb_fifo_push( subtitle->fifo_sync, hb_buffer_init( 0 ) );
+ else
+ hb_fifo_push( subtitle->fifo_out, hb_buffer_init( 0 ) );
}
- ++pv->drop_count;
- buf_tmp = hb_fifo_get( job->fifo_raw );
- if ( buf_tmp->new_chap )
+ }
+ return HB_WORK_DONE;
+ }
+
+ /* Check for end of point-to-point pts encoding */
+ if( job->pts_to_stop && sync->next_start >= job->pts_to_stop )
+ {
+ // Drop an empty buffer into our output to ensure that things
+ // get flushed all the way out.
+ hb_log( "sync: reached pts %"PRId64", exiting early",
+ sync->cur->start );
+ hb_buffer_close( &sync->cur );
+ hb_buffer_close( &next );
+ *buf_out = hb_buffer_init( 0 );
+
+ /*
+ * Push through any subtitle EOFs in case they were not synced through.
+ */
+ for( i = 0; i < hb_list_count( job->list_subtitle ); i++)
+ {
+ subtitle = hb_list_item( job->list_subtitle, i );
+ if( subtitle->config.dest == PASSTHRUSUB )
{
- // don't drop a chapter mark when we drop the buffer
- pv->chap_mark = buf_tmp->new_chap;
+ if( subtitle->source == VOBSUB )
+ hb_fifo_push( subtitle->fifo_sync, hb_buffer_init( 0 ) );
+ else
+ hb_fifo_push( subtitle->fifo_out, hb_buffer_init( 0 ) );
}
- hb_buffer_close( &buf_tmp );
- continue;
}
- if ( pv->first_drop )
+ return HB_WORK_DONE;
+ }
+
+ if( sync->first_frame )
+ {
+ /* This is our first frame */
+ if ( cur->start > pv->common->pts_offset )
+ {
+ /*
+ * The first pts from a dvd should always be zero but
+ * can be non-zero with a transport or program stream since
+ * we're not guaranteed to start on an IDR frame. If we get
+ * a non-zero initial PTS extend its duration so it behaves
+ * as if it started at zero so that our audio timing will
+ * be in sync.
+ */
+ hb_log( "sync: first pts is %"PRId64, cur->start );
+ cur->start = pv->common->pts_offset;
+ }
+ sync->first_frame = 0;
+ }
+
+ /*
+ * since the first frame is always 0 and the upstream reader code
+ * is taking care of adjusting for pts discontinuities, we just have
+ * to deal with the next frame's start being in the past. This can
+ * happen when the PTS is adjusted after data loss but video frame
+ * reordering causes some frames with the old clock to appear after
+ * the clock change. This creates frames that overlap in time which
+ * looks to us like time going backward. The downstream muxing code
+ * can deal with overlaps of up to a frame time but anything larger
+ * we handle by dropping frames here.
+ */
+ hb_lock( pv->common->mutex );
+ if ( (int64_t)( next->start - pv->common->video_pts_slip - cur->start ) <= 0 )
+ {
+ if ( sync->first_drop == 0 )
+ {
+ sync->first_drop = next->start;
+ }
+ ++sync->drop_count;
+ if (next->start - cur->start > 0)
+ {
+ sync->pts_skip += next->start - cur->start;
+ pv->common->video_pts_slip -= next->start - cur->start;
+ }
+ hb_unlock( pv->common->mutex );
+ if ( next->new_chap )
{
- hb_log( "sync: video time didn't advance - dropped %d frames "
- "(delta %d ms, current %lld, next %lld)",
- pv->drop_count, (int)( pv->next_pts - pv->first_drop ) / 90,
- pv->next_pts, pv->first_drop );
- pv->first_drop = 0;
- pv->drop_count = 0;
+ // don't drop a chapter mark when we drop the buffer
+ sync->chap_mark = next->new_chap;
}
+ hb_buffer_close( &next );
+ return HB_WORK_OK;
+ }
+ hb_unlock( pv->common->mutex );
+ if ( sync->first_drop )
+ {
+ hb_log( "sync: video time didn't advance - dropped %d frames "
+ "(delta %d ms, current %"PRId64", next %"PRId64", dur %d)",
+ sync->drop_count, (int)( cur->start - sync->first_drop ) / 90,
+ cur->start, next->start, (int)( next->start - cur->start ) );
+ sync->first_drop = 0;
+ sync->drop_count = 0;
+ }
+
+ /*
+ * Track the video sequence number localy so that we can sync the audio
+ * to it using the sequence number as well as the PTS.
+ */
+ sync->video_sequence = cur->sequence;
+
+ /*
+ * Look for a subtitle for this frame.
+ *
+ * If found then it will be tagged onto a video buffer of the correct time and
+ * sent in to the render pipeline. This only needs to be done for VOBSUBs which
+ * get rendered, other types of subtitles can just sit in their raw_queue until
+ * delt with at muxing.
+ */
+ for( i = 0; i < hb_list_count( job->list_subtitle ); i++)
+ {
+ subtitle = hb_list_item( job->list_subtitle, i );
/*
- * Track the video sequence number localy so that we can sync the audio
- * to it using the sequence number as well as the PTS.
+ * Rewrite timestamps on subtitles that need it (on raw queue).
*/
- pv->video_sequence = cur->sequence;
+ if( subtitle->source == CC608SUB ||
+ subtitle->source == CC708SUB ||
+ subtitle->source == SRTSUB ||
+ subtitle->source == UTF8SUB ||
+ subtitle->source == TX3GSUB ||
+ subtitle->source == SSASUB)
+ {
+ /*
+ * Rewrite timestamps on subtitles that came from Closed Captions
+ * since they are using the MPEG2 timestamps.
+ */
+ while( ( sub = hb_fifo_see( subtitle->fifo_raw ) ) )
+ {
+ /*
+ * Rewrite the timestamps as and when the video
+ * (cur->start) reaches the same timestamp as a
+ * closed caption (sub->start).
+ *
+ * What about discontinuity boundaries - not delt
+ * with here - Van?
+ *
+ * Bypass the sync fifo altogether.
+ */
+ if( sub->size <= 0 )
+ {
+ sub = hb_fifo_get( subtitle->fifo_raw );
+ hb_fifo_push( subtitle->fifo_out, sub );
+ sub = NULL;
+ break;
+ } else {
+ /*
+ * Sync the subtitles to the incoming video, and use
+ * the matching converted video timestamp.
+ *
+ * Note that it doesn't appear that we need to convert
+ * timestamps, I guess that they were already correct,
+ * so just push them through for rendering.
+ *
+ */
+ if( sub->start < cur->start )
+ {
+ sub = hb_fifo_get( subtitle->fifo_raw );
+ hb_fifo_push( subtitle->fifo_out, sub );
+ } else {
+ sub = NULL;
+ break;
+ }
+ }
+ }
+ }
- /* Look for a subtitle for this frame */
- if( pv->subtitle )
+ if( subtitle->source == VOBSUB )
{
hb_buffer_t * sub2;
- while( ( sub = hb_fifo_see( pv->subtitle->fifo_raw ) ) )
+ while( ( sub = hb_fifo_see( subtitle->fifo_raw ) ) )
{
+ if( sub->size == 0 )
+ {
+ /*
+ * EOF, pass it through immediately.
+ */
+ break;
+ }
+
/* If two subtitles overlap, make the first one stop
when the second one starts */
- sub2 = hb_fifo_see2( pv->subtitle->fifo_raw );
+ sub2 = hb_fifo_see2( subtitle->fifo_raw );
if( sub2 && sub->stop > sub2->start )
+ {
sub->stop = sub2->start;
-
- // hb_log("0x%x: video seq: %lld subtitle sequence: %lld",
+ }
+
+ // hb_log("0x%x: video seq: %"PRId64" subtitle sequence: %"PRId64,
// sub, cur->sequence, sub->sequence);
-
+
if( sub->sequence > cur->sequence )
{
/*
sub = NULL;
break;
}
-
+
if( sub->stop > cur->start ) {
/*
* The stop time is in the future, so fall through
* and we'll deal with it in the next block of
* code.
*/
- break;
- }
-
- /*
- * The subtitle is older than this picture, trash it
- */
- sub = hb_fifo_get( pv->subtitle->fifo_raw );
- hb_buffer_close( &sub );
- }
- /*
- * There is a valid subtitle, is it time to display it?
- */
- if( sub )
- {
- if( sub->stop > sub->start)
- {
/*
- * Normal subtitle which ends after it starts, check to
- * see that the current video is between the start and end.
+ * There is a valid subtitle, is it time to display it?
*/
- if( cur->start > sub->start &&
- cur->start < sub->stop )
+ if( sub->stop > sub->start)
{
/*
- * We should be playing this, so leave the
- * subtitle in place.
- *
- * fall through to display
+ * Normal subtitle which ends after it starts,
+ * check to see that the current video is between
+ * the start and end.
*/
- if( ( sub->stop - sub->start ) < ( 3 * 90000 ) )
+ if( cur->start > sub->start &&
+ cur->start < sub->stop )
{
/*
- * Subtitle is on for less than three seconds, extend
- * the time that it is displayed to make it easier
- * to read. Make it 3 seconds or until the next
- * subtitle is displayed.
- *
- * This is in response to Indochine which only
- * displays subs for 1 second - too fast to read.
- */
- sub->stop = sub->start + ( 3 * 90000 );
-
- sub2 = hb_fifo_see2( pv->subtitle->fifo_raw );
-
- if( sub2 && sub->stop > sub2->start )
+ * We should be playing this, so leave the
+ * subtitle in place.
+ *
+ * fall through to display
+ */
+ if( ( sub->stop - sub->start ) < ( 2 * 90000 ) )
{
- sub->stop = sub2->start;
+ /*
+ * Subtitle is on for less than three
+ * seconds, extend the time that it is
+ * displayed to make it easier to read.
+ * Make it 3 seconds or until the next
+ * subtitle is displayed.
+ *
+ * This is in response to Indochine which
+ * only displays subs for 1 second -
+ * too fast to read.
+ */
+ sub->stop = sub->start + ( 2 * 90000 );
+
+ sub2 = hb_fifo_see2( subtitle->fifo_raw );
+
+ if( sub2 && sub->stop > sub2->start )
+ {
+ sub->stop = sub2->start;
+ }
}
}
+ else
+ {
+ /*
+ * Defer until the play point is within
+ * the subtitle
+ */
+ sub = NULL;
+ }
}
else
{
/*
- * Defer until the play point is within the subtitle
+ * The end of the subtitle is less than the start,
+ * this is a sign of a PTS discontinuity.
*/
- sub = NULL;
+ if( sub->start > cur->start )
+ {
+ /*
+ * we haven't reached the start time yet, or
+ * we have jumped backwards after having
+ * already started this subtitle.
+ */
+ if( cur->start < sub->stop )
+ {
+ /*
+ * We have jumped backwards and so should
+ * continue displaying this subtitle.
+ *
+ * fall through to display.
+ */
+ }
+ else
+ {
+ /*
+ * Defer until the play point is
+ * within the subtitle
+ */
+ sub = NULL;
+ }
+ } else {
+ /*
+ * Play this subtitle as the start is
+ * greater than our video point.
+ *
+ * fall through to display/
+ */
+ }
}
+ break;
}
else
{
+
/*
- * The end of the subtitle is less than the start, this is a
- * sign of a PTS discontinuity.
+ * The subtitle is older than this picture, trash it
*/
- if( sub->start > cur->start )
+ sub = hb_fifo_get( subtitle->fifo_raw );
+ hb_buffer_close( &sub );
+ }
+ }
+
+ /* If we have a subtitle for this picture, copy it */
+ /* FIXME: we should avoid this memcpy */
+ if( sub )
+ {
+ if( sub->size > 0 )
+ {
+ if( subtitle->config.dest == RENDERSUB )
{
- /*
- * we haven't reached the start time yet, or
- * we have jumped backwards after having
- * already started this subtitle.
- */
- if( cur->start < sub->stop )
+ if ( cur->sub == NULL )
{
/*
- * We have jumped backwards and so should
- * continue displaying this subtitle.
- *
- * fall through to display.
+ * Tack onto the video buffer for rendering
*/
- }
- else
- {
- /*
- * Defer until the play point is within the subtitle
- */
- sub = NULL;
+ cur->sub = hb_buffer_init( sub->size );
+ cur->sub->x = sub->x;
+ cur->sub->y = sub->y;
+ cur->sub->width = sub->width;
+ cur->sub->height = sub->height;
+ memcpy( cur->sub->data, sub->data, sub->size );
}
} else {
/*
- * Play this subtitle as the start is greater than our
- * video point.
- *
- * fall through to display/
+ * Pass-Through, pop it off of the raw queue,
*/
+ sub = hb_fifo_get( subtitle->fifo_raw );
+ hb_fifo_push( subtitle->fifo_sync, sub );
+ }
+ } else {
+ /*
+ * EOF - consume for rendered, else pass through
+ */
+ if( subtitle->config.dest == RENDERSUB )
+ {
+ sub = hb_fifo_get( subtitle->fifo_raw );
+ hb_buffer_close( &sub );
+ } else {
+ sub = hb_fifo_get( subtitle->fifo_raw );
+ hb_fifo_push( subtitle->fifo_sync, sub );
}
}
}
}
+ } // end subtitles
+
+ /*
+ * Adjust the pts of the current frame so that it's contiguous
+ * with the previous frame. The start time of the current frame
+ * has to be the end time of the previous frame and the stop
+ * time has to be the start of the next frame. We don't
+ * make any adjustments to the source timestamps other than removing
+ * the clock offsets (which also removes pts discontinuities).
+ * This means we automatically encode at the source's frame rate.
+ * MP2 uses an implicit duration (frames end when the next frame
+ * starts) but more advanced containers like MP4 use an explicit
+ * duration. Since we're looking ahead one frame we set the
+ * explicit stop time from the start time of the next frame.
+ */
+ *buf_out = cur;
+ sync->cur = cur = next;
+ cur->sub = NULL;
+ sync->next_pts = cur->start;
+ int64_t duration = cur->start - sync->pts_skip - (*buf_out)->start;
+ sync->pts_skip = 0;
+ if ( duration <= 0 )
+ {
+ hb_log( "sync: invalid video duration %"PRId64", start %"PRId64", next %"PRId64"",
+ duration, (*buf_out)->start, next->start );
+ }
- /*
- * Adjust the pts of the current frame so that it's contiguous
- * with the previous frame. The start time of the current frame
- * has to be the end time of the previous frame and the stop
- * time has to be the start of the next frame. We don't
- * make any adjustments to the source timestamps other than removing
- * the clock offsets (which also removes pts discontinuities).
- * This means we automatically encode at the source's frame rate.
- * MP2 uses an implicit duration (frames end when the next frame
- * starts) but more advanced containers like MP4 use an explicit
- * duration. Since we're looking ahead one frame we set the
- * explicit stop time from the start time of the next frame.
- */
- buf_tmp = cur;
- pv->cur = cur = hb_fifo_get( job->fifo_raw );
- pv->next_pts = next->start;
- int64_t duration = next->start - buf_tmp->start;
- if ( duration <= 0 )
+ (*buf_out)->start = sync->next_start;
+ sync->next_start += duration;
+ (*buf_out)->stop = sync->next_start;
+
+ if ( sync->chap_mark )
+ {
+ // we have a pending chapter mark from a recent drop - put it on this
+ // buffer (this may make it one frame late but we can't do any better).
+ (*buf_out)->new_chap = sync->chap_mark;
+ sync->chap_mark = 0;
+ }
+
+ /* Update UI */
+ UpdateState( w );
+
+ return HB_WORK_OK;
+}
+
+// sync*Init does nothing because sync has a special initializer
+// that takes care of initializing video and all audio tracks
+int syncVideoInit( hb_work_object_t * w, hb_job_t * job)
+{
+ return 0;
+}
+
+hb_work_object_t hb_sync_video =
+{
+ WORK_SYNC_VIDEO,
+ "Video Synchronization",
+ syncVideoInit,
+ syncVideoWork,
+ syncVideoClose
+};
+
+/***********************************************************************
+ * Close Audio
+ ***********************************************************************
+ *
+ **********************************************************************/
+void syncAudioClose( hb_work_object_t * w )
+{
+ hb_work_private_t * pv = w->private_data;
+ hb_sync_audio_t * sync = &pv->type.audio;
+
+ if( w->audio->config.out.codec == HB_ACODEC_AC3 )
+ {
+ free( sync->ac3_buf );
+ }
+ else
+ {
+ src_delete( sync->state );
+ }
+
+ hb_lock( pv->common->mutex );
+ if ( --pv->common->ref == 0 )
+ {
+ hb_unlock( pv->common->mutex );
+ hb_lock_close( &pv->common->mutex );
+ free( pv->common );
+ }
+ else
+ {
+ hb_unlock( pv->common->mutex );
+ }
+
+ free( pv );
+ w->private_data = NULL;
+}
+
+int syncAudioInit( hb_work_object_t * w, hb_job_t * job)
+{
+ return 0;
+}
+
+/***********************************************************************
+ * SyncAudio
+ ***********************************************************************
+ *
+ **********************************************************************/
+static int syncAudioWork( hb_work_object_t * w, hb_buffer_t ** buf_in,
+ hb_buffer_t ** buf_out )
+{
+ hb_work_private_t * pv = w->private_data;
+ hb_job_t * job = pv->job;
+ hb_sync_audio_t * sync = &pv->type.audio;
+ hb_buffer_t * buf;
+ int64_t start;
+
+ *buf_out = NULL;
+ buf = *buf_in;
+ *buf_in = NULL;
+ /* if the next buffer is an eof send it downstream */
+ if ( buf->size <= 0 )
+ {
+ hb_buffer_close( &buf );
+ *buf_out = hb_buffer_init( 0 );
+ return HB_WORK_DONE;
+ }
+
+ /* Wait for start frame if doing point-to-point */
+ hb_lock( pv->common->mutex );
+ while ( !pv->common->start_found )
+ {
+ if ( pv->common->audio_pts_thresh < 0 )
+ {
+ // I would initialize this in hb_sync_init, but
+ // job->pts_to_start can be modified by reader
+ // after hb_sync_init is called.
+ pv->common->audio_pts_thresh = job->pts_to_start;
+ }
+ if ( buf->start < pv->common->audio_pts_thresh )
{
- hb_log( "sync: invalid video duration %lld, start %lld, next %lld",
- duration, buf_tmp->start, next->start );
+ hb_buffer_close( &buf );
+ hb_unlock( pv->common->mutex );
+ return HB_WORK_OK;
}
- buf_tmp->start = pv->next_start;
- pv->next_start += duration;
- buf_tmp->stop = pv->next_start;
- if ( pv->chap_mark )
+ while ( !pv->common->start_found &&
+ buf->start >= pv->common->audio_pts_thresh )
{
- // we have a pending chapter mark from a recent drop - put it on this
- // buffer (this may make it one frame late but we can't do any better).
- buf_tmp->new_chap = pv->chap_mark;
- pv->chap_mark = 0;
+ hb_cond_timedwait( pv->common->next_frame, pv->common->mutex, 200 );
}
+ }
+ if ( buf->start < pv->common->audio_pts_thresh )
+ {
+ hb_buffer_close( &buf );
+ hb_unlock( pv->common->mutex );
+ return HB_WORK_OK;
+ }
+ hb_unlock( pv->common->mutex );
- /* If we have a subtitle for this picture, copy it */
- /* FIXME: we should avoid this memcpy */
- if( sub )
+ /* Wait till we can determine the initial pts of all streams */
+ if( pv->common->pts_offset == INT64_MIN )
+ {
+ pv->common->first_pts[sync->index+1] = buf->start;
+ hb_lock( pv->common->mutex );
+ while( pv->common->pts_offset == INT64_MIN )
{
- buf_tmp->sub = hb_buffer_init( sub->size );
- buf_tmp->sub->x = sub->x;
- buf_tmp->sub->y = sub->y;
- buf_tmp->sub->width = sub->width;
- buf_tmp->sub->height = sub->height;
- memcpy( buf_tmp->sub->data, sub->data, sub->size );
+ // Full fifos will make us wait forever, so get the
+ // pts offset from the available streams if full
+ if (hb_fifo_is_full(w->fifo_in))
+ {
+ getPtsOffset( w );
+ hb_cond_broadcast( pv->common->next_frame );
+ }
+ else if ( checkPtsOffset( w ) )
+ hb_cond_broadcast( pv->common->next_frame );
+ else
+ hb_cond_timedwait( pv->common->next_frame, pv->common->mutex, 200 );
}
+ hb_unlock( pv->common->mutex );
+ }
- /* Push the frame to the renderer */
- hb_fifo_push( job->fifo_sync, buf_tmp );
+ if( job->frame_to_stop && pv->common->count_frames >= job->frame_to_stop )
+ {
+ hb_buffer_close( &buf );
+ *buf_out = hb_buffer_init( 0 );
+ return HB_WORK_DONE;
+ }
- /* Update UI */
- UpdateState( w );
+ if( job->pts_to_stop && sync->next_start >= job->pts_to_stop )
+ {
+ hb_buffer_close( &buf );
+ *buf_out = hb_buffer_init( 0 );
+ return HB_WORK_DONE;
+ }
- /* Make sure we won't get more frames then expected */
- if( pv->count_frames >= pv->count_frames_max * 2)
+ hb_lock( pv->common->mutex );
+ start = buf->start - pv->common->audio_passthru_slip;
+ hb_unlock( pv->common->mutex );
+ if ( (int64_t)( start - sync->next_pts ) < 0 )
+ {
+ // audio time went backwards.
+ // If our output clock is more than a half frame ahead of the
+ // input clock drop this frame to move closer to sync.
+ // Otherwise drop frames until the input clock matches the output clock.
+ if ( sync->first_drop || sync->next_start - start > 90*15 )
{
- hb_log( "sync: got too many frames (%d), exiting early", pv->count_frames );
- pv->done = 1;
-
- // Drop an empty buffer into our output to ensure that things
- // get flushed all the way out.
- buf_tmp = hb_buffer_init(0); // Empty end buffer
- hb_fifo_push( job->fifo_sync, buf_tmp );
-
- break;
+ // Discard data that's in the past.
+ if ( sync->first_drop == 0 )
+ {
+ sync->first_drop = sync->next_pts;
+ }
+ ++sync->drop_count;
+ hb_buffer_close( &buf );
+ return HB_WORK_OK;
+ }
+ sync->next_pts = start;
+ }
+ if ( sync->first_drop )
+ {
+ // we were dropping old data but input buf time is now current
+ hb_log( "sync: audio %d time went backwards %d ms, dropped %d frames "
+ "(next %"PRId64", current %"PRId64")", w->audio->id,
+ (int)( sync->next_pts - sync->first_drop ) / 90,
+ sync->drop_count, sync->first_drop, sync->next_pts );
+ sync->first_drop = 0;
+ sync->drop_count = 0;
+ sync->next_pts = start;
+ }
+ if ( start - sync->next_pts >= (90 * 70) )
+ {
+ if ( start - sync->next_pts > (90000LL * 60) )
+ {
+ // there's a gap of more than a minute between the last
+ // frame and this. assume we got a corrupted timestamp
+ // and just drop the next buf.
+ hb_log( "sync: %d minute time gap in audio %d - dropping buf"
+ " start %"PRId64", next %"PRId64,
+ (int)((start - sync->next_pts) / (90000*60)),
+ w->audio->id, start, sync->next_pts );
+ hb_buffer_close( &buf );
+ return HB_WORK_OK;
+ }
+ /*
+ * there's a gap of at least 70ms between the last
+ * frame we processed & the next. Fill it with silence.
+ * Or in the case of DCA, skip some frames from the
+ * other streams.
+ */
+ if( w->audio->config.out.codec == HB_ACODEC_DCA )
+ {
+ hb_log( "sync: audio gap %d ms. Skipping frames. Audio %d"
+ " start %"PRId64", next %"PRId64,
+ (int)((start - sync->next_pts) / 90),
+ w->audio->id, start, sync->next_pts );
+ hb_lock( pv->common->mutex );
+ pv->common->audio_passthru_slip += (start - sync->next_pts);
+ pv->common->video_pts_slip += (start - sync->next_pts);
+ hb_unlock( pv->common->mutex );
+ *buf_out = buf;
+ return HB_WORK_OK;
}
+ hb_log( "sync: adding %d ms of silence to audio %d"
+ " start %"PRId64", next %"PRId64,
+ (int)((start - sync->next_pts) / 90),
+ w->audio->id, start, sync->next_pts );
+ InsertSilence( w, start - sync->next_pts );
}
+ /*
+ * When we get here we've taken care of all the dups and gaps in the
+ * audio stream and are ready to inject the next input frame into
+ * the output stream.
+ */
+ *buf_out = OutputAudioFrame( w->audio, buf, sync );
return HB_WORK_OK;
}
-static void OutputAudioFrame( hb_job_t *job, hb_audio_t *audio, hb_buffer_t *buf,
- hb_sync_audio_t *sync, hb_fifo_t *fifo, int i )
+hb_work_object_t hb_sync_audio =
+{
+ WORK_SYNC_AUDIO,
+ "AudioSynchronization",
+ syncAudioInit,
+ syncAudioWork,
+ syncAudioClose
+};
+
+static void InitAudio( hb_job_t * job, hb_sync_common_t * common, int i )
+{
+ hb_work_object_t * w;
+ hb_work_private_t * pv;
+ hb_title_t * title = job->title;
+ hb_sync_audio_t * sync;
+
+ pv = calloc( 1, sizeof( hb_work_private_t ) );
+ sync = &pv->type.audio;
+ sync->index = i;
+ pv->job = job;
+ pv->common = common;
+ pv->common->ref++;
+ pv->common->pts_count++;
+
+ w = hb_get_work( WORK_SYNC_AUDIO );
+ w->private_data = pv;
+ w->audio = hb_list_item( title->list_audio, i );
+ w->fifo_in = w->audio->priv.fifo_raw;
+
+ if( w->audio->config.out.codec == HB_ACODEC_AC3 ||
+ w->audio->config.out.codec == HB_ACODEC_DCA )
+ {
+ w->fifo_out = w->audio->priv.fifo_out;
+ }
+ else
+ {
+ w->fifo_out = w->audio->priv.fifo_sync;
+ }
+
+ if( w->audio->config.out.codec == HB_ACODEC_AC3 )
+ {
+ /* Have a silent AC-3 frame ready in case we have to fill a
+ gap */
+ AVCodec * codec;
+ AVCodecContext * c;
+ short * zeros;
+
+ codec = avcodec_find_encoder( CODEC_ID_AC3 );
+ c = avcodec_alloc_context();
+
+ c->bit_rate = w->audio->config.in.bitrate;
+ c->sample_rate = w->audio->config.in.samplerate;
+ c->channels = HB_INPUT_CH_LAYOUT_GET_DISCRETE_COUNT( w->audio->config.in.channel_layout );
+
+ if( hb_avcodec_open( c, codec ) < 0 )
+ {
+ hb_log( "sync: avcodec_open failed" );
+ return;
+ }
+
+ zeros = calloc( AC3_SAMPLES_PER_FRAME *
+ sizeof( short ) * c->channels, 1 );
+ sync->ac3_size = w->audio->config.in.bitrate * AC3_SAMPLES_PER_FRAME /
+ w->audio->config.in.samplerate / 8;
+ sync->ac3_buf = malloc( sync->ac3_size );
+
+ if( avcodec_encode_audio( c, sync->ac3_buf, sync->ac3_size,
+ zeros ) != sync->ac3_size )
+ {
+ hb_log( "sync: avcodec_encode_audio failed" );
+ }
+
+ free( zeros );
+ hb_avcodec_close( c );
+ av_free( c );
+ }
+ else
+ {
+ /* Initialize libsamplerate */
+ int error;
+ sync->state = src_new( SRC_SINC_MEDIUM_QUALITY,
+ HB_AMIXDOWN_GET_DISCRETE_CHANNEL_COUNT(
+ w->audio->config.out.mixdown), &error );
+ sync->data.end_of_input = 0;
+ }
+ hb_list_add( job->list_work, w );
+}
+
+static hb_buffer_t * OutputAudioFrame( hb_audio_t *audio, hb_buffer_t *buf,
+ hb_sync_audio_t *sync )
{
int64_t start = sync->next_start;
int64_t duration = buf->stop - buf->start;
if( src_process( sync->state, &sync->data ) )
{
/* XXX If this happens, we're screwed */
- hb_log( "sync: audio %d src_process failed", i );
+ hb_log( "sync: audio %d src_process failed", audio->id );
}
hb_buffer_close( &buf_raw );
buf->start = start;
buf->stop = start + duration;
sync->next_start = start + duration;
- while( hb_fifo_is_full( fifo ) )
- {
- hb_snooze( 50 );
- if ( job->done && hb_fifo_is_full( fifo ) )
- {
- /* don't block here if the job's finished */
- hb_buffer_close( &buf );
- return;
- }
- }
- hb_fifo_push( fifo, buf );
+ return buf;
}
-/***********************************************************************
- * SyncAudio
- ***********************************************************************
- *
- **********************************************************************/
-static void SyncAudio( hb_work_object_t * w, int i )
+static void InsertSilence( hb_work_object_t * w, int64_t duration )
{
hb_work_private_t * pv = w->private_data;
- hb_job_t * job = pv->job;
- hb_sync_audio_t * sync = &pv->sync_audio[i];
- hb_audio_t * audio = sync->audio;
- hb_buffer_t * buf;
- hb_fifo_t * fifo;
-
- if( audio->config.out.codec == HB_ACODEC_AC3 )
- {
- fifo = audio->priv.fifo_out;
- }
- else
- {
- fifo = audio->priv.fifo_sync;
- }
-
- while( !hb_fifo_is_full( fifo ) && ( buf = hb_fifo_see( audio->priv.fifo_raw ) ) )
- {
- if ( (int64_t)( buf->start - sync->next_pts ) < 0 )
- {
- /*
- * audio time went backwards by more than a frame time (this can
- * happen when we reset the PTS because of lost data).
- * Discard data that's in the past.
- */
- if ( sync->first_drop == 0 )
- {
- sync->first_drop = buf->start;
- }
- ++sync->drop_count;
- buf = hb_fifo_get( audio->priv.fifo_raw );
- hb_buffer_close( &buf );
- continue;
- }
- if ( sync->first_drop )
- {
- hb_log( "sync: audio %d time went backwards %d ms, dropped %d frames "
- "(next %lld, current %lld)", i,
- (int)( sync->next_pts - sync->first_drop ) / 90,
- sync->drop_count, sync->first_drop, sync->next_pts );
- sync->first_drop = 0;
- sync->drop_count = 0;
- }
-
- if ( sync->inserting_silence && (int64_t)(buf->start - sync->next_pts) > 0 )
- {
- /*
- * if we're within one frame time of the amount of silence
- * we need, insert just what we need otherwise insert a frame time.
- */
- int64_t framedur = buf->stop - buf->start;
- if ( buf->start - sync->next_pts <= framedur )
- {
- InsertSilence( w, i, buf->start - sync->next_pts );
- sync->inserting_silence = 0;
- }
- else
- {
- InsertSilence( w, i, framedur );
- }
- continue;
- }
- if ( buf->start - sync->next_pts >= (90 * 70) )
- {
- /*
- * there's a gap of at least 70ms between the last
- * frame we processed & the next. Fill it with silence.
- */
- if ( ! sync->inserting_silence )
- {
- hb_log( "sync: adding %d ms of silence to audio %d"
- " start %lld, next %lld",
- (int)((buf->start - sync->next_pts) / 90),
- i, buf->start, sync->next_pts );
- sync->inserting_silence = 1;
- }
- InsertSilence( w, i, buf->start - sync->next_pts );
- continue;
- }
-
- /*
- * When we get here we've taken care of all the dups and gaps in the
- * audio stream and are ready to inject the next input frame into
- * the output stream.
- */
- buf = hb_fifo_get( audio->priv.fifo_raw );
- OutputAudioFrame( job, audio, buf, sync, fifo, i );
- }
-
- if( NeedSilence( w, audio, i ) )
- {
- InsertSilence( w, i, (90000 * AC3_SAMPLES_PER_FRAME) /
- sync->audio->config.in.samplerate );
- }
-}
-
-static int NeedSilence( hb_work_object_t * w, hb_audio_t * audio, int i )
-{
- hb_work_private_t * pv = w->private_data;
- hb_job_t * job = pv->job;
- hb_sync_audio_t * sync = &pv->sync_audio[i];
-
- if( hb_fifo_size( audio->priv.fifo_in ) ||
- hb_fifo_size( audio->priv.fifo_raw ) ||
- hb_fifo_size( audio->priv.fifo_sync ) ||
- hb_fifo_size( audio->priv.fifo_out ) )
- {
- /* We have some audio, we are fine */
- return 0;
- }
-
- /* No audio left in fifos */
-
- if( hb_thread_has_exited( job->reader ) )
- {
- /* We might miss some audio to complete encoding and muxing
- the video track */
- if ( sync->start_silence == 0 )
- {
- hb_log("sync: reader has exited, adding silence to audio %d", i);
- sync->start_silence = sync->next_pts;
- }
- return 1;
- }
- return 0;
-}
-
-static void InsertSilence( hb_work_object_t * w, int i, int64_t duration )
-{
- hb_work_private_t * pv = w->private_data;
- hb_job_t *job = pv->job;
- hb_sync_audio_t *sync = &pv->sync_audio[i];
+ hb_sync_audio_t *sync = &pv->type.audio;
hb_buffer_t *buf;
hb_fifo_t *fifo;
// of the AC3 frame duration we will truncate or round up depending on
// which minimizes the timing error.
const int frame_dur = ( 90000 * AC3_SAMPLES_PER_FRAME ) /
- sync->audio->config.in.samplerate;
+ w->audio->config.in.samplerate;
int frame_count = ( duration + (frame_dur >> 1) ) / frame_dur;
while ( --frame_count >= 0 )
{
- if( sync->audio->config.out.codec == HB_ACODEC_AC3 )
+ if( w->audio->config.out.codec == HB_ACODEC_AC3 )
{
buf = hb_buffer_init( sync->ac3_size );
buf->start = sync->next_pts;
buf->stop = buf->start + frame_dur;
memcpy( buf->data, sync->ac3_buf, buf->size );
- fifo = sync->audio->priv.fifo_out;
+ fifo = w->audio->priv.fifo_out;
}
else
{
buf = hb_buffer_init( AC3_SAMPLES_PER_FRAME * sizeof( float ) *
HB_AMIXDOWN_GET_DISCRETE_CHANNEL_COUNT(
- sync->audio->config.out.mixdown) );
+ w->audio->config.out.mixdown) );
buf->start = sync->next_pts;
buf->stop = buf->start + frame_dur;
memset( buf->data, 0, buf->size );
- fifo = sync->audio->priv.fifo_sync;
+ fifo = w->audio->priv.fifo_sync;
}
- OutputAudioFrame( job, sync->audio, buf, sync, fifo, i );
+ buf = OutputAudioFrame( w->audio, buf, sync );
+ hb_fifo_push( fifo, buf );
}
}
static void UpdateState( hb_work_object_t * w )
{
hb_work_private_t * pv = w->private_data;
+ hb_sync_video_t * sync = &pv->type.video;
hb_state_t state;
- if( !pv->count_frames )
+ if( !pv->common->count_frames )
{
- pv->st_first = hb_get_date();
+ sync->st_first = hb_get_date();
+ pv->job->st_pause_date = -1;
+ pv->job->st_paused = 0;
}
- pv->count_frames++;
+ pv->common->count_frames++;
- if( hb_get_date() > pv->st_dates[3] + 1000 )
+ if( hb_get_date() > sync->st_dates[3] + 1000 )
{
- memmove( &pv->st_dates[0], &pv->st_dates[1],
+ memmove( &sync->st_dates[0], &sync->st_dates[1],
3 * sizeof( uint64_t ) );
- memmove( &pv->st_counts[0], &pv->st_counts[1],
+ memmove( &sync->st_counts[0], &sync->st_counts[1],
3 * sizeof( uint64_t ) );
- pv->st_dates[3] = hb_get_date();
- pv->st_counts[3] = pv->count_frames;
+ sync->st_dates[3] = hb_get_date();
+ sync->st_counts[3] = pv->common->count_frames;
}
#define p state.param.working
state.state = HB_STATE_WORKING;
- p.progress = (float) pv->count_frames / (float) pv->count_frames_max;
+ p.progress = (float) pv->common->count_frames / (float) sync->count_frames_max;
if( p.progress > 1.0 )
{
p.progress = 1.0;
}
p.rate_cur = 1000.0 *
- (float) ( pv->st_counts[3] - pv->st_counts[0] ) /
- (float) ( pv->st_dates[3] - pv->st_dates[0] );
- if( hb_get_date() > pv->st_first + 4000 )
+ (float) ( sync->st_counts[3] - sync->st_counts[0] ) /
+ (float) ( sync->st_dates[3] - sync->st_dates[0] );
+ if( hb_get_date() > sync->st_first + 4000 )
{
int eta;
- p.rate_avg = 1000.0 * (float) pv->st_counts[3] /
- (float) ( pv->st_dates[3] - pv->st_first );
- eta = (float) ( pv->count_frames_max - pv->st_counts[3] ) /
+ p.rate_avg = 1000.0 * (float) sync->st_counts[3] /
+ (float) ( sync->st_dates[3] - sync->st_first - pv->job->st_paused);
+ eta = (float) ( sync->count_frames_max - sync->st_counts[3] ) /
p.rate_avg;
p.hours = eta / 3600;
p.minutes = ( eta % 3600 ) / 60;
hb_set_state( pv->job->h, &state );
}
+
+static void UpdateSearchState( hb_work_object_t * w, int64_t start )
+{
+ hb_work_private_t * pv = w->private_data;
+ hb_sync_video_t * sync = &pv->type.video;
+ hb_state_t state;
+ uint64_t now;
+ double avg;
+
+ now = hb_get_date();
+ if( !pv->common->count_frames )
+ {
+ sync->st_first = now;
+ pv->job->st_pause_date = -1;
+ pv->job->st_paused = 0;
+ }
+ pv->common->count_frames++;
+
+#define p state.param.working
+ state.state = HB_STATE_SEARCHING;
+ if ( pv->job->frame_to_start )
+ p.progress = (float) pv->common->count_frames /
+ (float) pv->job->frame_to_start;
+ else if ( pv->job->pts_to_start )
+ p.progress = (float) start / (float) pv->job->pts_to_start;
+ else
+ p.progress = 0;
+ if( p.progress > 1.0 )
+ {
+ p.progress = 1.0;
+ }
+ if (now > sync->st_first)
+ {
+ int eta;
+
+ if ( pv->job->frame_to_start )
+ {
+ avg = 1000.0 * (double)pv->common->count_frames / (now - sync->st_first);
+ eta = ( pv->job->frame_to_start - pv->common->count_frames ) / avg;
+ }
+ else if ( pv->job->pts_to_start )
+ {
+ avg = 1000.0 * (double)start / (now - sync->st_first);
+ eta = ( pv->job->pts_to_start - start ) / avg;
+ }
+ p.hours = eta / 3600;
+ p.minutes = ( eta % 3600 ) / 60;
+ p.seconds = eta % 60;
+ }
+ else
+ {
+ p.rate_avg = 0.0;
+ p.hours = -1;
+ p.minutes = -1;
+ p.seconds = -1;
+ }
+#undef p
+
+ hb_set_state( pv->job->h, &state );
+}
+
+static void getPtsOffset( hb_work_object_t * w )
+{
+ hb_work_private_t * pv = w->private_data;
+ int i ;
+ int64_t first_pts = INT64_MAX;
+
+ for( i = 0; i < pv->common->pts_count; i++ )
+ {
+ if ( pv->common->first_pts[i] < first_pts )
+ first_pts = pv->common->first_pts[i];
+ }
+ pv->common->audio_passthru_slip = pv->common->pts_offset = first_pts;
+ return;
+}
+
+static int checkPtsOffset( hb_work_object_t * w )
+{
+ hb_work_private_t * pv = w->private_data;
+ int i ;
+
+ for( i = 0; i < pv->common->pts_count; i++ )
+ {
+ if ( pv->common->first_pts[i] == INT64_MAX )
+ return 0;
+ }
+ getPtsOffset( w );
+ return 1;
+}
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