Commit e76a28e0 authored by Denis Charmet's avatar Denis Charmet

Reuse the decoders when possible at segment change

Should fix #5906 in most cases
parent 2a1c53be
......@@ -662,6 +662,8 @@ bool matroska_segment_c::Preload( )
msg_Dbg( &sys.demuxer, "| + Preload Unknown (%s)", typeid(*el).name() );
}
ComputeTrackPriority();
b_preloaded = true;
return true;
......@@ -1014,11 +1016,8 @@ int matroska_segment_c::BlockFindTrackIndex( size_t *pi_track,
return VLC_SUCCESS;
}
bool matroska_segment_c::Select( mtime_t i_start_time )
void matroska_segment_c::ComputeTrackPriority()
{
/* add all es */
msg_Dbg( &sys.demuxer, "found %d es", (int)tracks.size() );
bool b_has_default_video = false;
bool b_has_default_audio = false;
/* check for default */
......@@ -1067,7 +1066,27 @@ bool matroska_segment_c::Select( mtime_t i_start_time )
/* Avoid multivideo tracks when unnecessary */
if( p_tk->fmt.i_cat == VIDEO_ES )
p_tk->fmt.i_priority--;
}
}
bool matroska_segment_c::Select( mtime_t i_start_time )
{
/* add all es */
msg_Dbg( &sys.demuxer, "found %d es", (int)tracks.size() );
for( size_t i_track = 0; i_track < tracks.size(); i_track++ )
{
mkv_track_t *p_tk = tracks[i_track];
es_format_t *p_fmt = &p_tk->fmt;
if( unlikely( p_fmt->i_cat == UNKNOWN_ES || !p_tk->psz_codec ) )
{
msg_Warn( &sys.demuxer, "invalid track[%d, n=%d]", (int)i_track, p_tk->i_number );
p_tk->p_es = NULL;
continue;
}
if( !p_tk->p_es )
p_tk->p_es = es_out_Add( sys.demuxer.out, &p_tk->fmt );
/* Turn on a subtitles track if it has been flagged as default -
......
......@@ -162,6 +162,7 @@ private:
SimpleTag * ParseSimpleTags( KaxTagSimple *tag, int level = 50 );
void IndexAppendCluster( KaxCluster *cluster );
int32_t TrackInit( mkv_track_t * p_tk );
void ComputeTrackPriority();
};
......
......@@ -194,6 +194,7 @@ void matroska_segment_c::ParseTrackEntry( KaxTrackEntry *m )
memset( tk, 0, sizeof( mkv_track_t ) );
es_format_Init( &tk->fmt, UNKNOWN_ES, 0 );
tk->p_es = NULL;
tk->fmt.psz_language = strdup("English");
tk->fmt.psz_description = NULL;
......
......@@ -476,10 +476,7 @@ void virtual_segment_c::Seek( demux_t & demuxer, mtime_t i_date, mtime_t i_time_
}
if( p_current_chapter->p_segment != p_chapter->p_segment )
{
p_chapter->p_segment->Select( i_date );
p_current_chapter->p_segment->UnSelect();
}
ChangeSegment( p_current_chapter->p_segment, p_chapter->p_segment, i_date );
p_current_chapter = p_chapter;
p_chapter->p_segment->Seek( i_date, i_time_offset, i_global_position );
......@@ -613,3 +610,49 @@ void virtual_chapter_c::print()
sub_chapters[i]->print();
}
#endif
void virtual_segment_c::ChangeSegment( matroska_segment_c * p_old, matroska_segment_c * p_new, mtime_t i_start_time )
{
size_t i, j;
for( i = 0; i < p_new->tracks.size(); i++)
{
mkv_track_t *p_tk = p_new->tracks[i];
es_format_t *p_nfmt = &p_tk->fmt;
/* Let's only do that for audio and video for now */
if( p_nfmt->i_cat == AUDIO_ES || p_nfmt->i_cat == VIDEO_ES )
{
/* check for a similar elementary stream */
for( j = 0; j < p_old->tracks.size(); j++)
{
es_format_t * p_ofmt = &p_old->tracks[j]->fmt;
if( !p_old->tracks[j]->p_es )
continue;
if( ( p_nfmt->i_cat == p_ofmt->i_cat ) &&
( p_nfmt->i_codec == p_ofmt->i_codec ) &&
( p_nfmt->i_priority == p_ofmt->i_priority ) &&
( p_nfmt->i_bitrate == p_ofmt->i_bitrate ) &&
( p_nfmt->i_extra == p_ofmt->i_extra ) &&
( (!p_nfmt->p_extra && !p_ofmt->p_extra) ||
!memcmp( p_nfmt->p_extra, p_ofmt->p_extra, p_nfmt->i_extra ) ) &&
!strcasecmp( p_nfmt->psz_language, p_ofmt->psz_language ) &&
( ( p_nfmt->i_cat == AUDIO_ES &&
!memcmp( &p_nfmt->audio, &p_ofmt->audio, sizeof(audio_format_t) ) ) ||
( p_nfmt->i_cat == VIDEO_ES &&
!memcmp( &p_nfmt->video, &p_ofmt->video, sizeof(video_format_t) ) ) ) )
{
/* FIXME handle video palettes... */
msg_Warn( &p_old->sys.demuxer, "Reusing decoder of old track %u for track %u", j, i);
p_tk->p_es = p_old->tracks[j]->p_es;
p_old->tracks[j]->p_es = NULL;
break;
}
}
}
}
p_new->Select( i_start_time );
p_old->UnSelect();
}
......@@ -157,6 +157,8 @@ public:
bool UpdateCurrentToChapter( demux_t & demux );
void Seek( demux_t & demuxer, mtime_t i_date, mtime_t i_time_offset,
virtual_chapter_c *p_chapter, int64_t i_global_position );
private:
void ChangeSegment( matroska_segment_c * p_old, matroska_segment_c * p_new, mtime_t i_start_time );
};
#endif
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