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Commit 73c979f2 authored by Francois Cartegnie's avatar Francois Cartegnie
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demux: ogg: delay ES creation for preparsing. 

Prevents creating ES & decoders just for playlist preparsing.
parent b6dd43d5
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Showing with 105 additions and 50 deletions
modules/demux/ogg.c
View file @ 73c979f2
......@@ -116,6 +116,7 @@ static void Ogg_UpdatePCR ( logical_stream_t *, ogg_packet * );
static void Ogg_DecodePacket ( demux_t *, logical_stream_t *, ogg_packet * );
static int Ogg_OpusPacketDuration( logical_stream_t *, ogg_packet * );
static void Ogg_CreateES( demux_t *p_demux );
static int Ogg_BeginningOfStream( demux_t *p_demux );
static int Ogg_FindLogicalStreams( demux_t *p_demux );
static void Ogg_EndOfStream( demux_t *p_demux );
......@@ -270,9 +271,6 @@ static int Demux( demux_t * p_demux )
if( Ogg_BeginningOfStream( p_demux ) != VLC_SUCCESS )
return 0;
if ( ! p_sys->skeleton.major )
p_sys->b_preparsing_done = true;
/* Find the real duration */
stream_Control( p_demux->s, STREAM_CAN_SEEK, &b_canseek );
if ( b_canseek )
......@@ -282,6 +280,18 @@ static int Demux( demux_t * p_demux )
es_out_Control( p_demux->out, ES_OUT_SET_PCR, VLC_TS_0 );
}
if ( p_sys->b_preparsing_done )
{
for ( int i=0; i < p_sys->i_streams; i++ )
{
if ( !p_sys->pp_stream[i]->p_es )
{
Ogg_CreateES( p_demux );
break;
}
}
}
/*
* The first data page of a physical stream is stored in the relevant logical stream
* in Ogg_FindLogicalStreams. Therefore, we must not read a page and only update the
......@@ -317,7 +327,7 @@ static int Demux( demux_t * p_demux )
for( i_stream = 0; i_stream < p_sys->i_streams; i_stream++ )
{
logical_stream_t *p_stream = p_sys->pp_stream[i_stream];
if ( p_stream->b_have_updated_format )
if ( p_stream->b_have_updated_format && p_stream->p_es )
{
p_stream->b_have_updated_format = false;
if ( p_stream->p_skel ) Ogg_ApplySkeleton( p_stream );
......@@ -329,7 +339,6 @@ static int Demux( demux_t * p_demux )
}
}
for( i_stream = 0; i_stream < p_sys->i_streams; i_stream++ )
{
if ( p_sys->pp_stream[i_stream]->i_serial_no == ogg_page_serialno( &p_sys->current_page ) )
......@@ -530,6 +539,12 @@ static int Demux( demux_t * p_demux )
{
logical_stream_t *p_stream = p_sys->pp_stream[i_stream];
if ( p_stream->b_force_backup )
{
/* We have 1 or more streams needing more than 1 page for preparsing */
p_sys->b_preparsing_done = false;
}
if( p_stream->fmt.i_cat == SPU_ES )
continue;
if( p_stream->i_interpolated_pcr < 0 )
......@@ -937,8 +952,11 @@ static void Ogg_DecodePacket( demux_t *p_demux,
p_oggpacket->packet[0] & PACKET_TYPE_BITS ) return;
/* Check the ES is selected */
es_out_Control( p_demux->out, ES_OUT_GET_ES_STATE,
p_stream->p_es, &b_selected );
if ( !p_stream->p_es )
b_selected = true;
else
es_out_Control( p_demux->out, ES_OUT_GET_ES_STATE,
p_stream->p_es, &b_selected );
if( p_stream->b_force_backup )
{
......@@ -1048,6 +1066,7 @@ static void Ogg_DecodePacket( demux_t *p_demux,
}
else
{
if ( p_stream->p_es )
/* Otherwise we set config from first headers */
es_out_Control( p_demux->out, ES_OUT_SET_ES_FMT,
p_stream->p_es, &p_stream->fmt );
......@@ -1279,8 +1298,18 @@ static void Ogg_DecodePacket( demux_t *p_demux,
memcpy( p_block->p_buffer, p_oggpacket->packet + i_header_len,
p_oggpacket->bytes - i_header_len );
assert( p_ogg->b_preparsing_done );
es_out_Send( p_demux->out, p_stream->p_es, p_block );
if ( p_stream->p_es )
{
/* Because ES creation is delayed for preparsing */
if ( p_stream->p_preparse_block )
{
es_out_Send( p_demux->out, p_stream->p_es, p_stream->p_preparse_block );
p_stream->p_preparse_block = NULL;
}
es_out_Send( p_demux->out, p_stream->p_es, p_block );
}
else
block_ChainAppend( & p_stream->p_preparse_block, p_block );
}
/* Re-implemented to avoid linking against libopus from the demuxer. */
......@@ -1797,6 +1826,64 @@ static int Ogg_FindLogicalStreams( demux_t *p_demux )
return VLC_EGENERIC;
}
/****************************************************************************
* Ogg_CreateES: Creates all Elementary streams once headers are parsed
****************************************************************************/
static void Ogg_CreateES( demux_t *p_demux )
{
demux_sys_t *p_ogg = p_demux->p_sys;
logical_stream_t *p_old_stream = p_ogg->p_old_stream;
int i_stream;
for( i_stream = 0 ; i_stream < p_ogg->i_streams; i_stream++ )
{
logical_stream_t *p_stream = p_ogg->pp_stream[i_stream];
if ( p_stream->p_es == NULL )
{
/* Better be safe than sorry when possible with ogm */
if( p_stream->fmt.i_codec == VLC_CODEC_MPGA ||
p_stream->fmt.i_codec == VLC_CODEC_A52 )
p_stream->fmt.b_packetized = false;
/* Try first to reuse an old ES */
if( p_old_stream &&
p_old_stream->fmt.i_cat == p_stream->fmt.i_cat &&
p_old_stream->fmt.i_codec == p_stream->fmt.i_codec )
{
msg_Dbg( p_demux, "will reuse old stream to avoid glitch" );
p_stream->p_es = p_old_stream->p_es;
es_format_Copy( &p_stream->fmt_old, &p_old_stream->fmt );
p_old_stream->p_es = NULL;
p_old_stream = NULL;
es_out_Control( p_demux->out, ES_OUT_SET_ES_FMT,
p_stream->p_es, &p_stream->fmt );
}
else
{
p_stream->p_es = es_out_Add( p_demux->out, &p_stream->fmt );
}
// TODO: something to do here ?
if( p_stream->fmt.i_codec == VLC_CODEC_CMML )
{
/* Set the CMML stream active */
es_out_Control( p_demux->out, ES_OUT_SET_ES, p_stream->p_es );
}
}
}
if( p_ogg->p_old_stream )
{
if( p_ogg->p_old_stream->p_es )
msg_Dbg( p_demux, "old stream not reused" );
Ogg_LogicalStreamDelete( p_demux, p_ogg->p_old_stream );
p_ogg->p_old_stream = NULL;
}
}
/****************************************************************************
* Ogg_BeginningOfStream: Look for Beginning of Stream ogg pages and add
* Elementary streams.
......@@ -1804,7 +1891,6 @@ static int Ogg_FindLogicalStreams( demux_t *p_demux )
static int Ogg_BeginningOfStream( demux_t *p_demux )
{
demux_sys_t *p_ogg = p_demux->p_sys ;
logical_stream_t *p_old_stream = p_ogg->p_old_stream;
int i_stream;
/* Find the logical streams embedded in the physical stream and
......@@ -1826,37 +1912,6 @@ static int Ogg_BeginningOfStream( demux_t *p_demux )
/* initialise kframe index */
p_stream->idx=NULL;
/* Try first to reuse an old ES */
if( p_old_stream &&
p_old_stream->fmt.i_cat == p_stream->fmt.i_cat &&
p_old_stream->fmt.i_codec == p_stream->fmt.i_codec )
{
msg_Dbg( p_demux, "will reuse old stream to avoid glitch" );
p_stream->p_es = p_old_stream->p_es;
es_format_Copy( &p_stream->fmt_old, &p_old_stream->fmt );
p_old_stream->p_es = NULL;
p_old_stream = NULL;
}
if( !p_stream->p_es )
{
/* Better be safe than sorry when possible with ogm */
if( p_stream->fmt.i_codec == VLC_CODEC_MPGA ||
p_stream->fmt.i_codec == VLC_CODEC_A52 )
p_stream->fmt.b_packetized = false;
p_stream->p_es = es_out_Add( p_demux->out, &p_stream->fmt );
}
// TODO: something to do here ?
if( p_stream->fmt.i_codec == VLC_CODEC_CMML )
{
/* Set the CMML stream active */
es_out_Control( p_demux->out, ES_OUT_SET_ES, p_stream->p_es );
}
if ( p_stream->fmt.i_bitrate == 0 &&
( p_stream->fmt.i_cat == VIDEO_ES ||
p_stream->fmt.i_cat == AUDIO_ES ) )
......@@ -1869,15 +1924,6 @@ static int Ogg_BeginningOfStream( demux_t *p_demux )
p_stream->b_reinit = false;
}
if( p_ogg->p_old_stream )
{
if( p_ogg->p_old_stream->p_es )
msg_Dbg( p_demux, "old stream not reused" );
Ogg_LogicalStreamDelete( p_demux, p_ogg->p_old_stream );
p_ogg->p_old_stream = NULL;
}
/* get total frame count for video stream; we will need this for seeking */
p_ogg->i_total_frames = 0;
......@@ -1902,6 +1948,7 @@ static void Ogg_EndOfStream( demux_t *p_demux )
p_ogg->pp_stream = NULL;
p_ogg->skeleton.major = 0;
p_ogg->skeleton.minor = 0;
p_ogg->b_preparsing_done = false;
/* */
if( p_ogg->p_meta )
......@@ -1941,6 +1988,13 @@ static void Ogg_LogicalStreamDelete( demux_t *p_demux, logical_stream_t *p_strea
if ( p_demux->p_sys->p_skelstream == p_stream )
p_demux->p_sys->p_skelstream = NULL;
/* Shouldn't happen */
if ( unlikely( p_stream->p_preparse_block ) )
{
block_ChainRelease( p_stream->p_preparse_block );
p_stream->p_preparse_block = NULL;
}
free( p_stream );
}
/**
......
modules/demux/ogg.h
View file @ 73c979f2
......@@ -104,6 +104,7 @@ typedef struct logical_stream_s
/* for Annodex logical bitstreams */
int i_secondary_header_packets;
block_t *p_preparse_block;
} logical_stream_t;
struct ogg_skeleton_t
......
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