int64_t last; // last timestamp seen on this stream
int id; // stream id
int is_audio; // != 0 if this is an audio stream
+ int valid; // Stream timing is not valid until next scr.
} stream_timing_t;
typedef struct
hb_title_t * title;
volatile int * die;
+ hb_bd_t * bd;
hb_dvd_t * dvd;
hb_stream_t * stream;
r->stream_timing[0].average = 90000. * (double)job->vrate_base /
(double)job->vrate;
r->stream_timing[0].last = -r->stream_timing[0].average;
+ r->stream_timing[0].valid = 1;
r->stream_timing[1].id = -1;
if ( !job->pts_to_start )
// find or create the per-stream timing state for 'buf'
-static stream_timing_t *id_to_st( hb_reader_t *r, const hb_buffer_t *buf )
+static stream_timing_t *id_to_st( hb_reader_t *r, const hb_buffer_t *buf, int valid )
{
stream_timing_t *st = r->stream_timing;
while ( st->id != buf->id && st->id != -1)
}
st->id = buf->id;
st->average = 30.*90.;
- if ( r->saw_video )
- st->last = buf->renderOffset - st->average;
- else
- st->last = -st->average;
+ st->last = -st->average;
if ( ( st->is_audio = is_audio( r, buf->id ) ) != 0 )
{
r->saw_audio = 1;
}
st[1].id = -1;
+ st->valid = valid;
}
return st;
}
static void update_ipt( hb_reader_t *r, const hb_buffer_t *buf )
{
- stream_timing_t *st = id_to_st( r, buf );
+ stream_timing_t *st = id_to_st( r, buf, 1 );
double dt = buf->renderOffset - st->last;
- st->average += ( dt - st->average ) * (1./32.);
- st->last = buf->renderOffset;
+ // Protect against spurious bad timestamps
+ if ( dt > -5 * 90000LL && dt < 5 * 90000LL )
+ {
+ st->average += ( dt - st->average ) * (1./32.);
+ st->last = buf->renderOffset;
+ }
+ st->valid = 1;
}
// use the per-stream state associated with 'buf' to compute a new scr_offset
static void new_scr_offset( hb_reader_t *r, hb_buffer_t *buf )
{
- stream_timing_t *st = id_to_st( r, buf );
- int64_t nxt = st->last + st->average;
+ stream_timing_t *st = id_to_st( r, buf, 1 );
+ int64_t last;
+ if ( !st->valid )
+ {
+ // !valid means we've not received any previous data
+ // for this stream. There is no 'last' packet time.
+ // So approximate it with video's last time.
+ last = r->stream_timing[0].last;
+ st->valid = 1;
+ }
+ else
+ {
+ last = st->last;
+ }
+ int64_t nxt = last + st->average;
r->scr_offset = buf->renderOffset - nxt;
- buf->renderOffset = nxt;
+ // This log is handy when you need to debug timing problems...
+ //hb_log("id %x last %ld avg %g nxt %ld renderOffset %ld scr_offset %ld",
+ // buf->id, last, st->average, nxt, buf->renderOffset, r->scr_offset);
r->scr_changes = r->demux.scr_changes;
- st->last = buf->renderOffset;
+ st->last = nxt;
}
/***********************************************************************
int chapter = -1;
int chapter_end = r->job->chapter_end;
- if ( r->title->type == HB_DVD_TYPE )
+ if ( r->title->type == HB_BD_TYPE )
+ {
+ if ( !( r->bd = hb_bd_init( r->title->path ) ) )
+ return;
+ }
+ else if ( r->title->type == HB_DVD_TYPE )
{
if ( !( r->dvd = hb_dvd_init( r->title->path ) ) )
return;
}
hb_buffer_t *ps = hb_buffer_init( HB_DVD_READ_BUFFER_SIZE );
- if (r->dvd)
+ if (r->bd)
+ {
+ if( !hb_bd_start( r->bd, r->title ) )
+ {
+ hb_bd_close( &r->bd );
+ hb_buffer_close( &ps );
+ return;
+ }
+ if ( r->job->start_at_preview )
+ {
+ // XXX code from DecodePreviews - should go into its own routine
+ hb_bd_seek( r->bd, (float)r->job->start_at_preview /
+ ( r->job->seek_points ? ( r->job->seek_points + 1.0 ) : 11.0 ) );
+ }
+ else if ( r->job->pts_to_start )
+ {
+ hb_bd_seek_pts( r->bd, r->job->pts_to_start );
+ }
+ else
+ {
+ hb_bd_seek_chapter( r->bd, r->job->chapter_start );
+ }
+ if (r->job->angle > 1)
+ {
+ hb_bd_set_angle( r->bd, r->job->angle - 1 );
+ }
+ }
+ else if (r->dvd)
{
/*
* XXX this code is a temporary hack that should go away if/when
}
else if ( r->stream && r->job->pts_to_start )
{
+ int64_t pts_to_start = r->job->pts_to_start;
// Find out what the first timestamp of the stream is
// and then seek to the appropriate offset from it
if ( hb_stream_read( r->stream, ps ) )
{
if ( ps->start > 0 )
- r->job->pts_to_start += ps->start;
+ pts_to_start += ps->start;
}
- if ( hb_stream_seek_ts( r->stream, r->job->pts_to_start ) >= 0 )
+ if ( hb_stream_seek_ts( r->stream, pts_to_start ) >= 0 )
{
// Seek takes us to the nearest I-frame before the timestamp
// that we want. So we will retrieve the start time of the
// first packet we get, subtract that from pts_to_start, and
// inspect the reset of the frames in sync.
r->start_found = 2;
+ r->job->pts_to_start = pts_to_start;
}
-
}
else if( r->stream )
{
while( !*r->die && !r->job->done )
{
- if (r->dvd)
+ if (r->bd)
+ chapter = hb_bd_chapter( r->bd );
+ else if (r->dvd)
chapter = hb_dvd_chapter( r->dvd );
else if (r->stream)
chapter = hb_stream_chapter( r->stream );
break;
}
- if (r->dvd)
+ if (r->bd)
+ {
+ if( !hb_bd_read( r->bd, ps ) )
+ {
+ break;
+ }
+ }
+ else if (r->dvd)
{
if( !hb_dvd_read( r->dvd, ps ) )
{
// want to start at.
if ( ps->start > 0 && ps->start < r->job->pts_to_start )
r->job->pts_to_start -= ps->start;
+ else if ( ps->start >= r->job->pts_to_start )
+ r->job->pts_to_start = 0;
r->start_found = 1;
}
}
r->scr_changes = r->demux.scr_changes - 1;
// create a stream state if we don't have one so the
// offset will get computed correctly.
- id_to_st( r, buf );
+ id_to_st( r, buf, 1 );
r->saw_video = 1;
hb_log( "reader: first SCR %"PRId64" id %d DTS %"PRId64,
r->demux.last_scr, buf->id, buf->renderOffset );
}
if( fifos )
{
+ if ( buf->renderOffset != -1 )
+ {
+ if ( r->scr_changes != r->demux.scr_changes )
+ {
+ // This is the first audio or video packet after an SCR
+ // change. Compute a new scr offset that would make this
+ // packet follow the last of this stream with the
+ // correct average spacing.
+ stream_timing_t *st = id_to_st( r, buf, 0 );
+
+ // if this is the video stream and we don't have
+ // audio yet or this is an audio stream
+ // generate a new scr
+ if ( st->is_audio ||
+ ( st == r->stream_timing && !r->saw_audio ) )
+ {
+ new_scr_offset( r, buf );
+ }
+ else
+ {
+ // defer the scr change until we get some
+ // audio since audio has a timestamp per
+ // frame but video & subtitles don't. Clear
+ // the timestamps so the decoder will generate
+ // them from the frame durations.
+ if ( st != r->stream_timing )
+ {
+ // not a video stream so it's probably
+ // subtitles - the best we can do is to
+ // line it up with the last video packet.
+ buf->start = r->stream_timing->last;
+ }
+ else
+ {
+ buf->start = -1;
+ buf->renderOffset = -1;
+ }
+ }
+ }
+ }
if ( buf->start != -1 )
{
int64_t start = buf->start - r->scr_offset;
r->job->pts_to_start = 0;
}
}
+ // This log is handy when you need to debug timing problems
+ //hb_log("id %x scr_offset %ld start %ld --> %ld",
+ // buf->id, r->scr_offset, buf->start,
+ // buf->start - r->scr_offset);
+ buf->start -= r->scr_offset;
}
if ( buf->renderOffset != -1 )
{
buf->renderOffset -= r->scr_offset;
update_ipt( r, buf );
}
- else
- {
- // This is the first audio or video packet after an SCR
- // change. Compute a new scr offset that would make this
- // packet follow the last of this stream with the correct
- // average spacing.
- stream_timing_t *st = find_st( r, buf );
-
- if ( st )
- {
- // if this is the video stream and we don't have
- // audio yet or this is an audio stream
- // generate a new scr
- if ( st->is_audio ||
- ( st == r->stream_timing && !r->saw_audio ) )
- {
- new_scr_offset( r, buf );
- }
- else
- {
- // defer the scr change until we get some
- // audio since audio has a timestamp per
- // frame but video & subtitles don't. Clear
- // the timestamps so the decoder will generate
- // them from the frame durations.
- if ( st != r->stream_timing )
- {
- // not a video stream so it's probably
- // subtitles - the best we can do is to
- // line it up with the last video packet.
- buf->start = r->stream_timing->last;
- }
- else
- {
- buf->start = -1;
- buf->renderOffset = -1;
- }
- }
- }
- else
- {
- // we got a new scr at the same time as the first
- // packet of a stream we've never seen before. We
- // have no idea what the timing should be so toss
- // this buffer & wait for a stream we've already seen.
- // add stream to list of streams we have seen
- id_to_st( r, buf );
- hb_buffer_close( &buf );
- continue;
- }
- }
- }
- if ( buf->start != -1 )
- {
- buf->start -= r->scr_offset;
}
if ( !r->start_found )
{
hb_list_empty( &list );
hb_buffer_close( &ps );
- if (r->dvd)
+ if (r->bd)
+ {
+ hb_bd_stop( r->bd );
+ hb_bd_close( &r->bd );
+ }
+ else if (r->dvd)
{
hb_dvd_stop( r->dvd );
hb_dvd_close( &r->dvd );
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