double f_rate;
int i_serial_no;
- int b_activated;
/* the header of some logical streams (eg vorbis) contain essential
* data for the decoder. We back them up here in case we need to re-feed
* them to the decoder. */
int b_force_backup;
int i_packets_backup;
- ogg_packet *p_packets_backup;
+ uint8_t *p_headers;
+ int i_headers;
/* program clock reference (in units of 90kHz) derived from the previous
* granulepos */
static void Ogg_EndOfStream( demux_t *p_demux );
/* Logical bitstream headers */
-static void Ogg_ReadTheoraHeader( logical_stream_t *p_stream,
- ogg_packet *p_oggpacket );
-static void Ogg_ReadVorbisHeader( logical_stream_t *p_stream,
- ogg_packet *p_oggpacket );
-static void Ogg_ReadAnnodexHeader( vlc_object_t *, logical_stream_t *p_stream,
- ogg_packet *p_oggpacket );
+static void Ogg_ReadTheoraHeader( logical_stream_t *, ogg_packet * );
+static void Ogg_ReadVorbisHeader( logical_stream_t *, ogg_packet * );
+static void Ogg_ReadSpeexHeader( logical_stream_t *, ogg_packet * );
+static void Ogg_ReadFlacHeader( demux_t *, logical_stream_t *, ogg_packet * );
+static void Ogg_ReadAnnodexHeader( vlc_object_t *, logical_stream_t *, ogg_packet * );
/*****************************************************************************
* Open: initializes ogg demux structures
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->b_force_backup )
{
- ogg_packet *p_packet_backup;
+ uint8_t *p_extra;
+ vlc_bool_t b_store_size = VLC_TRUE;
+
p_stream->i_packets_backup++;
switch( p_stream->fmt.i_codec )
{
break;
case VLC_FOURCC( 'f','l','a','c' ):
- if( p_stream->i_packets_backup == 1 ) return;
- else if( p_stream->i_packets_backup == 2 )
+ if( p_stream->i_packets_backup == 2 )
{
- /* Parse the STREAMINFO metadata */
- bs_t s;
- bs_init( &s, p_oggpacket->packet, p_oggpacket->bytes );
- bs_read( &s, 1 );
- if( bs_read( &s, 7 ) == 0 )
- {
- if( bs_read( &s, 24 ) >= 34 /*size STREAMINFO*/ )
- {
- bs_skip( &s, 80 );
- p_stream->f_rate = p_stream->fmt.audio.i_rate =
- bs_read( &s, 20 );
- p_stream->fmt.audio.i_channels =
- bs_read( &s, 3 ) + 1;
-
- msg_Dbg( p_demux, "FLAC header, channels: %i, rate: %i",
- p_stream->fmt.audio.i_channels,
- (int)p_stream->f_rate );
- }
- else
- {
- msg_Dbg( p_demux, "FLAC STREAMINFO metadata too short" );
- }
-
- /* Store STREAMINFO for the decoder and packetizer */
- p_stream->fmt.i_extra = p_oggpacket->bytes + 4;
- p_stream->fmt.p_extra = malloc( p_stream->fmt.i_extra );
- memcpy( p_stream->fmt.p_extra, "fLaC", 4);
- memcpy( ((uint8_t *)p_stream->fmt.p_extra) + 4,
- p_oggpacket->packet, p_oggpacket->bytes );
-
- /* Fake this as the last metadata block */
- ((uint8_t*)p_stream->fmt.p_extra)[4] |= 0x80;
-
- p_stream->p_es = es_out_Add( p_demux->out,
- &p_stream->fmt );
- }
- else
- {
- /* This ain't a STREAMINFO metadata */
- msg_Dbg( p_demux, "Invalid FLAC STREAMINFO metadata" );
- }
+ Ogg_ReadFlacHeader( p_demux, p_stream, p_oggpacket );
p_stream->b_force_backup = 0;
- p_stream->i_packets_backup = 0;
-
- if( p_oggpacket->granulepos >= 0 )
- Ogg_UpdatePCR( p_stream, p_oggpacket );
-
- p_stream->i_previous_pcr = 0;
- return;
}
+ b_store_size = VLC_FALSE;
break;
default:
}
/* Backup the ogg packet (likely an header packet) */
- p_stream->p_packets_backup =
- realloc( p_stream->p_packets_backup, p_stream->i_packets_backup *
- sizeof(ogg_packet) );
-
- p_packet_backup =
- &p_stream->p_packets_backup[p_stream->i_packets_backup - 1];
-
- p_packet_backup->bytes = p_oggpacket->bytes;
- p_packet_backup->granulepos = p_oggpacket->granulepos;
-
- if( p_oggpacket->granulepos >= 0 )
+ p_stream->p_headers =
+ realloc( p_stream->p_headers, p_stream->i_headers +
+ p_oggpacket->bytes + (b_store_size ? 2 : 0) );
+ p_extra = p_stream->p_headers + p_stream->i_headers;
+ if( b_store_size )
{
- /* Because of vorbis granulepos scheme we must set the pcr for the
- * 1st header packet so it doesn't get discarded in the
- * packetizer */
- Ogg_UpdatePCR( p_stream, p_oggpacket );
+ *(p_extra++) = p_oggpacket->bytes >> 8;
+ *(p_extra++) = p_oggpacket->bytes & 0xFF;
}
+ memcpy( p_extra, p_oggpacket->packet, p_oggpacket->bytes );
+ p_stream->i_headers += p_oggpacket->bytes + (b_store_size ? 2 : 0);
- p_packet_backup->packet = malloc( p_oggpacket->bytes );
- if( !p_packet_backup->packet ) return;
- memcpy( p_packet_backup->packet, p_oggpacket->packet,
- p_oggpacket->bytes );
- }
-
- /* Check the ES is selected */
- es_out_Control( p_demux->out, ES_OUT_GET_ES_STATE,
- p_stream->p_es, &b_selected );
-
- if( b_selected && !p_stream->b_activated )
- {
- p_stream->b_activated = VLC_TRUE;
-
- /* Newly activated stream, feed the backup headers to the decoder */
if( !p_stream->b_force_backup )
{
- int i;
- for( i = 0; i < p_stream->i_packets_backup; i++ )
- {
- /* Set correct starting date in header packets */
- p_stream->p_packets_backup[i].granulepos =
- p_stream->i_interpolated_pcr * p_stream->f_rate /
- I64C(1000000);
-
- Ogg_DecodePacket( p_demux, p_stream,
- &p_stream->p_packets_backup[i] );
- }
+ /* Last header received, commit changes */
+ p_stream->fmt.i_extra = p_stream->i_headers;
+ p_stream->fmt.p_extra =
+ realloc( p_stream->fmt.p_extra, p_stream->i_headers );
+ memcpy( p_stream->fmt.p_extra, p_stream->p_headers,
+ p_stream->i_headers );
+ es_out_Control( p_demux->out, ES_OUT_SET_FMT,
+ p_stream->p_es, &p_stream->fmt );
}
+
+ b_selected = VLC_FALSE; /* Discard the header packet */
}
/* Convert the pcr into a pts */
{
/* This stream isn't currently selected so we don't need to decode it,
* but we did need to store its pcr as it might be selected later on */
- p_stream->b_activated = VLC_FALSE;
return;
}
p_stream = malloc( sizeof(logical_stream_t) );
memset( p_stream, 0, sizeof(logical_stream_t) );
+ p_stream->p_headers = 0;
es_format_Init( &p_stream->fmt, 0, 0 );
- p_stream->b_activated = VLC_TRUE;
/* Setup the logical stream */
p_stream->i_serial_no = ogg_page_serialno( &oggpage );
else if( oggpacket.bytes >= 7 &&
! strncmp( &oggpacket.packet[0], "Speex", 5 ) )
{
- oggpack_buffer opb;
-
- p_stream->fmt.i_cat = AUDIO_ES;
- p_stream->fmt.i_codec = VLC_FOURCC( 's','p','x',' ' );
-
- /* Signal that we want to keep a backup of the vorbis
- * stream headers. They will be used when switching between
- * audio streams. */
- p_stream->b_force_backup = 1;
-
- /* Cheat and get additionnal info ;) */
- oggpack_readinit( &opb, oggpacket.packet, oggpacket.bytes);
- oggpack_adv( &opb, 224 );
- oggpack_adv( &opb, 32 ); /* speex_version_id */
- oggpack_adv( &opb, 32 ); /* header_size */
- p_stream->f_rate = p_stream->fmt.audio.i_rate =
- oggpack_read( &opb, 32 );
- oggpack_adv( &opb, 32 ); /* mode */
- oggpack_adv( &opb, 32 ); /* mode_bitstream_version */
- p_stream->fmt.audio.i_channels = oggpack_read( &opb, 32 );
- p_stream->fmt.i_bitrate = oggpack_read( &opb, 32 );
-
+ Ogg_ReadSpeexHeader( p_stream, &oggpacket );
msg_Dbg( p_demux, "found speex header, channels: %i, "
"rate: %i, bitrate: %i",
p_stream->fmt.audio.i_channels,
for( i_stream = 0 ; i_stream < p_ogg->i_streams; i_stream++ )
{
#define p_stream p_ogg->pp_stream[i_stream]
- if( p_stream->fmt.i_codec != VLC_FOURCC('f','l','a','c') )
- p_stream->p_es = es_out_Add( p_demux->out, &p_stream->fmt );
+ p_stream->p_es = es_out_Add( p_demux->out, &p_stream->fmt );
if( p_stream->fmt.i_codec == VLC_FOURCC('c','m','m','l') )
{
/* Set the CMML stream active */
- es_out_Control( p_demux->out, ES_OUT_SET_ES,
- p_stream->p_es );
+ es_out_Control( p_demux->out, ES_OUT_SET_ES, p_stream->p_es );
}
p_ogg->i_bitrate += p_stream->fmt.i_bitrate;
static void Ogg_EndOfStream( demux_t *p_demux )
{
demux_sys_t *p_ogg = p_demux->p_sys ;
- int i_stream, j;
+ int i_stream;
#define p_stream p_ogg->pp_stream[i_stream]
for( i_stream = 0 ; i_stream < p_ogg->i_streams; i_stream++ )
p_ogg->i_bitrate -= p_stream->fmt.i_bitrate;
ogg_stream_clear( &p_ogg->pp_stream[i_stream]->os );
- for( j = 0; j < p_ogg->pp_stream[i_stream]->i_packets_backup; j++ )
- {
- free( p_ogg->pp_stream[i_stream]->p_packets_backup[j].packet );
- }
- if( p_ogg->pp_stream[i_stream]->p_packets_backup)
- free( p_ogg->pp_stream[i_stream]->p_packets_backup );
+ if( p_ogg->pp_stream[i_stream]->p_headers)
+ free( p_ogg->pp_stream[i_stream]->p_headers );
es_format_Clean( &p_stream->fmt );
p_stream->fmt.i_cat = VIDEO_ES;
p_stream->fmt.i_codec = VLC_FOURCC( 't','h','e','o' );
- /* Signal that we want to keep a backup of the vorbis
+ /* Signal that we want to keep a backup of the theora
* stream headers. They will be used when switching between
* audio streams. */
p_stream->b_force_backup = 1;
}
p_stream->f_rate = ((float)i_fps_numerator) / i_fps_denominator;
-
- /* Save this data in p_extra for ffmpeg */
- p_stream->fmt.i_extra = p_oggpacket->bytes;
- p_stream->fmt.p_extra = malloc( p_oggpacket->bytes );
- memcpy( p_stream->fmt.p_extra, p_oggpacket->packet, p_oggpacket->bytes );
-
}
static void Ogg_ReadVorbisHeader( logical_stream_t *p_stream,
p_stream->fmt.i_bitrate = oggpack_read( &opb, 32 );
}
+static void Ogg_ReadSpeexHeader( logical_stream_t *p_stream,
+ ogg_packet *p_oggpacket )
+{
+ oggpack_buffer opb;
+
+ p_stream->fmt.i_cat = AUDIO_ES;
+ p_stream->fmt.i_codec = VLC_FOURCC( 's','p','x',' ' );
+
+ /* Signal that we want to keep a backup of the speex
+ * stream headers. They will be used when switching between
+ * audio streams. */
+ p_stream->b_force_backup = 1;
+
+ /* Cheat and get additionnal info ;) */
+ oggpack_readinit( &opb, p_oggpacket->packet, p_oggpacket->bytes);
+ oggpack_adv( &opb, 224 );
+ oggpack_adv( &opb, 32 ); /* speex_version_id */
+ oggpack_adv( &opb, 32 ); /* header_size */
+ p_stream->f_rate = p_stream->fmt.audio.i_rate = oggpack_read( &opb, 32 );
+ oggpack_adv( &opb, 32 ); /* mode */
+ oggpack_adv( &opb, 32 ); /* mode_bitstream_version */
+ p_stream->fmt.audio.i_channels = oggpack_read( &opb, 32 );
+ p_stream->fmt.i_bitrate = oggpack_read( &opb, 32 );
+}
+
+static void Ogg_ReadFlacHeader( demux_t *p_demux, logical_stream_t *p_stream,
+ ogg_packet *p_oggpacket )
+{
+ /* Parse the STREAMINFO metadata */
+ bs_t s;
+
+ bs_init( &s, p_oggpacket->packet, p_oggpacket->bytes );
+ bs_read( &s, 1 );
+ if( bs_read( &s, 7 ) == 0 )
+ {
+ if( bs_read( &s, 24 ) >= 34 /*size STREAMINFO*/ )
+ {
+ bs_skip( &s, 80 );
+ p_stream->f_rate = p_stream->fmt.audio.i_rate = bs_read( &s, 20 );
+ p_stream->fmt.audio.i_channels = bs_read( &s, 3 ) + 1;
+
+ msg_Dbg( p_demux, "FLAC header, channels: %i, rate: %i",
+ p_stream->fmt.audio.i_channels, (int)p_stream->f_rate );
+ }
+ else msg_Dbg( p_demux, "FLAC STREAMINFO metadata too short" );
+
+ /* Fake this as the last metadata block */
+ *((uint8_t*)p_oggpacket->packet) |= 0x80;
+ }
+ else
+ {
+ /* This ain't a STREAMINFO metadata */
+ msg_Dbg( p_demux, "Invalid FLAC STREAMINFO metadata" );
+ }
+}
+
static void Ogg_ReadAnnodexHeader( vlc_object_t *p_this,
logical_stream_t *p_stream,
ogg_packet *p_oggpacket )
projects / vlc / blobdiff