Commit 4eb5c516 authored by Jean-Baptiste Kempf's avatar Jean-Baptiste Kempf

Matroska: cleanup so that relevant methods are in their correct files

parent 1056e181
......@@ -604,6 +604,152 @@ bool matroska_segment_c::LoadSeekHeadItem( const EbmlCallbacks & ClassInfos, int
return true;
}
void matroska_segment_c::Seek( mtime_t i_date, mtime_t i_time_offset, int64_t i_global_position )
{
KaxBlock *block;
KaxSimpleBlock *simpleblock;
int i_track_skipping;
int64_t i_block_duration;
int64_t i_block_ref1;
int64_t i_block_ref2;
size_t i_track;
int64_t i_seek_position = i_start_pos;
int64_t i_seek_time = i_start_time;
if( i_global_position >= 0 )
{
/* Special case for seeking in files with no cues */
EbmlElement *el = NULL;
es.I_O().setFilePointer( i_start_pos, seek_beginning );
delete ep;
ep = new EbmlParser( &es, segment, &sys.demuxer );
cluster = NULL;
while( ( el = ep->Get() ) != NULL )
{
if( MKV_IS_ID( el, KaxCluster ) )
{
cluster = (KaxCluster *)el;
i_cluster_pos = cluster->GetElementPosition();
if( i_index == 0 ||
( i_index > 0 && p_indexes[i_index - 1].i_position < (int64_t)cluster->GetElementPosition() ) )
{
IndexAppendCluster( cluster );
}
if( es.I_O().getFilePointer() >= i_global_position )
{
ParseCluster();
msg_Dbg( &sys.demuxer, "we found a cluster that is in the neighbourhood" );
return;
}
}
}
msg_Err( &sys.demuxer, "This file has no cues, and we were unable to seek to the requested position by parsing." );
return;
}
if ( i_index > 0 )
{
int i_idx = 0;
for( ; i_idx < i_index; i_idx++ )
{
if( p_indexes[i_idx].i_time + i_time_offset > i_date )
{
break;
}
}
if( i_idx > 0 )
{
i_idx--;
}
i_seek_position = p_indexes[i_idx].i_position;
i_seek_time = p_indexes[i_idx].i_time;
}
msg_Dbg( &sys.demuxer, "seek got %"PRId64" (%d%%)",
i_seek_time, (int)( 100 * i_seek_position / stream_Size( sys.demuxer.s ) ) );
es.I_O().setFilePointer( i_seek_position, seek_beginning );
delete ep;
ep = new EbmlParser( &es, segment, &sys.demuxer );
cluster = NULL;
sys.i_start_pts = i_date;
/* now parse until key frame */
i_track_skipping = 0;
for( i_track = 0; i_track < tracks.size(); i_track++ )
{
if( tracks[i_track]->fmt.i_cat == VIDEO_ES )
{
tracks[i_track]->b_search_keyframe = true;
i_track_skipping++;
}
}
es_out_Control( sys.demuxer.out, ES_OUT_SET_NEXT_DISPLAY_TIME, i_date );
while( i_track_skipping > 0 )
{
if( BlockGet( block, simpleblock, &i_block_ref1, &i_block_ref2, &i_block_duration ) )
{
msg_Warn( &sys.demuxer, "cannot get block EOF?" );
return;
}
for( i_track = 0; i_track < tracks.size(); i_track++ )
{
if( (simpleblock && tracks[i_track]->i_number == simpleblock->TrackNum()) ||
(block && tracks[i_track]->i_number == block->TrackNum()) )
{
break;
}
}
if( simpleblock )
sys.i_pts = (sys.i_chapter_time + simpleblock->GlobalTimecode()) / (mtime_t) 1000;
else
sys.i_pts = (sys.i_chapter_time + block->GlobalTimecode()) / (mtime_t) 1000;
if( i_track < tracks.size() )
{
if( sys.i_pts > sys.i_start_pts )
{
cluster = static_cast<KaxCluster*>(ep->UnGet( i_block_pos, i_cluster_pos ));
i_track_skipping = 0;
}
else if( tracks[i_track]->fmt.i_cat == VIDEO_ES )
{
if( i_block_ref1 == 0 && tracks[i_track]->b_search_keyframe )
{
tracks[i_track]->b_search_keyframe = false;
i_track_skipping--;
}
if( !tracks[i_track]->b_search_keyframe )
{
BlockDecode( &sys.demuxer, block, simpleblock, sys.i_pts, 0, i_block_ref1 >= 0 || i_block_ref2 > 0 );
}
}
}
delete block;
}
/* FIXME current ES_OUT_SET_NEXT_DISPLAY_TIME does not work that well if
* the delay is too high. */
if( sys.i_pts + 500*1000 < sys.i_start_pts )
{
sys.i_start_pts = sys.i_pts;
es_out_Control( sys.demuxer.out, ES_OUT_SET_NEXT_DISPLAY_TIME, sys.i_start_pts );
}
}
int matroska_segment_c::BlockFindTrackIndex( size_t *pi_track,
const KaxBlock *p_block, const KaxSimpleBlock *p_simpleblock )
{
......
......@@ -467,8 +467,8 @@ static block_t *MemToBlock( demux_t *p_demux, uint8_t *p_mem, size_t i_mem, size
return p_block;
}
/* Needed by matroska_segment::Seek() */
static void BlockDecode( demux_t *p_demux, KaxBlock *block, KaxSimpleBlock *simpleblock,
/* Needed by matroska_segment::Seek() and Seek */
void BlockDecode( demux_t *p_demux, KaxBlock *block, KaxSimpleBlock *simpleblock,
mtime_t i_pts, mtime_t i_duration, bool f_mandatory )
{
demux_sys_t *p_sys = p_demux->p_sys;
......@@ -622,153 +622,6 @@ msg_Dbg( p_demux, "block i_dts: %"PRId64" / i_pts: %"PRId64, p_block->i_dts, p_b
}
}
void matroska_segment_c::Seek( mtime_t i_date, mtime_t i_time_offset, int64_t i_global_position )
{
KaxBlock *block;
KaxSimpleBlock *simpleblock;
int i_track_skipping;
int64_t i_block_duration;
int64_t i_block_ref1;
int64_t i_block_ref2;
size_t i_track;
int64_t i_seek_position = i_start_pos;
int64_t i_seek_time = i_start_time;
if( i_global_position >= 0 )
{
/* Special case for seeking in files with no cues */
EbmlElement *el = NULL;
es.I_O().setFilePointer( i_start_pos, seek_beginning );
delete ep;
ep = new EbmlParser( &es, segment, &sys.demuxer );
cluster = NULL;
while( ( el = ep->Get() ) != NULL )
{
if( MKV_IS_ID( el, KaxCluster ) )
{
cluster = (KaxCluster *)el;
i_cluster_pos = cluster->GetElementPosition();
if( i_index == 0 ||
( i_index > 0 && p_indexes[i_index - 1].i_position < (int64_t)cluster->GetElementPosition() ) )
{
IndexAppendCluster( cluster );
}
if( es.I_O().getFilePointer() >= i_global_position )
{
ParseCluster();
msg_Dbg( &sys.demuxer, "we found a cluster that is in the neighbourhood" );
return;
}
}
}
msg_Err( &sys.demuxer, "This file has no cues, and we were unable to seek to the requested position by parsing." );
return;
}
if ( i_index > 0 )
{
int i_idx = 0;
for( ; i_idx < i_index; i_idx++ )
{
if( p_indexes[i_idx].i_time + i_time_offset > i_date )
{
break;
}
}
if( i_idx > 0 )
{
i_idx--;
}
i_seek_position = p_indexes[i_idx].i_position;
i_seek_time = p_indexes[i_idx].i_time;
}
msg_Dbg( &sys.demuxer, "seek got %"PRId64" (%d%%)",
i_seek_time, (int)( 100 * i_seek_position / stream_Size( sys.demuxer.s ) ) );
es.I_O().setFilePointer( i_seek_position, seek_beginning );
delete ep;
ep = new EbmlParser( &es, segment, &sys.demuxer );
cluster = NULL;
sys.i_start_pts = i_date;
/* now parse until key frame */
i_track_skipping = 0;
for( i_track = 0; i_track < tracks.size(); i_track++ )
{
if( tracks[i_track]->fmt.i_cat == VIDEO_ES )
{
tracks[i_track]->b_search_keyframe = true;
i_track_skipping++;
}
}
es_out_Control( sys.demuxer.out, ES_OUT_SET_NEXT_DISPLAY_TIME, i_date );
while( i_track_skipping > 0 )
{
if( BlockGet( block, simpleblock, &i_block_ref1, &i_block_ref2, &i_block_duration ) )
{
msg_Warn( &sys.demuxer, "cannot get block EOF?" );
return;
}
for( i_track = 0; i_track < tracks.size(); i_track++ )
{
if( (simpleblock && tracks[i_track]->i_number == simpleblock->TrackNum()) ||
(block && tracks[i_track]->i_number == block->TrackNum()) )
{
break;
}
}
if( simpleblock )
sys.i_pts = (sys.i_chapter_time + simpleblock->GlobalTimecode()) / (mtime_t) 1000;
else
sys.i_pts = (sys.i_chapter_time + block->GlobalTimecode()) / (mtime_t) 1000;
if( i_track < tracks.size() )
{
if( sys.i_pts > sys.i_start_pts )
{
cluster = static_cast<KaxCluster*>(ep->UnGet( i_block_pos, i_cluster_pos ));
i_track_skipping = 0;
}
else if( tracks[i_track]->fmt.i_cat == VIDEO_ES )
{
if( i_block_ref1 == 0 && tracks[i_track]->b_search_keyframe )
{
tracks[i_track]->b_search_keyframe = false;
i_track_skipping--;
}
if( !tracks[i_track]->b_search_keyframe )
{
BlockDecode( &sys.demuxer, block, simpleblock, sys.i_pts, 0, i_block_ref1 >= 0 || i_block_ref2 > 0 );
}
}
}
delete block;
}
/* FIXME current ES_OUT_SET_NEXT_DISPLAY_TIME does not work that well if
* the delay is too high. */
if( sys.i_pts + 500*1000 < sys.i_start_pts )
{
sys.i_start_pts = sys.i_pts;
es_out_Control( sys.demuxer.out, ES_OUT_SET_NEXT_DISPLAY_TIME, sys.i_start_pts );
}
}
/*****************************************************************************
* Demux: reads and demuxes data packets
*****************************************************************************
......
......@@ -49,7 +49,6 @@
# include <time.h> /* time() */
#endif
#include <vlc_codecs.h> /* BITMAPINFOHEADER, WAVEFORMATEX */
#include <vlc_iso_lang.h>
#include <vlc_meta.h>
......@@ -126,6 +125,9 @@ extern "C" {
using namespace LIBMATROSKA_NAMESPACE;
using namespace std;
void BlockDecode( demux_t *p_demux, KaxBlock *block, KaxSimpleBlock *simpleblock,
mtime_t i_pts, mtime_t i_duration, bool f_mandatory );
class attachment_c
{
public:
......
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