/*****************************************************************************
* ogg.c : ogg stream input module for vlc
*****************************************************************************
- * Copyright (C) 2001 VideoLAN
- * $Id: ogg.c,v 1.7 2002/11/05 21:57:41 gbazin Exp $
+ * Copyright (C) 2001-2003 VideoLAN
+ * $Id: ogg.c,v 1.52 2003/12/22 14:32:55 sam Exp $
+ *
+ * Author: Gildas Bazin <gbazin@netcourrier.com>
*
- * Authors: Gildas Bazin <gbazin@netcourrier.com>
- *
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
- *
+ *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
/*****************************************************************************
* Preamble
*****************************************************************************/
-#include <stdlib.h> /* malloc(), free() */
-#include <string.h>
-
#include <vlc/vlc.h>
#include <vlc/input.h>
-#include <sys/types.h>
-
#include <ogg/ogg.h>
-#include <codecs.h> /* BITMAPINFOHEADER, WAVEFORMATEX */
+#include "codecs.h"
+#include "vlc_bits.h"
#define OGG_BLOCK_SIZE 4096
-#define PAGES_READ_ONCE 1
/*****************************************************************************
- * Definitions of structures and functions used by this plugins
+ * Definitions of structures and functions used by this plugins
*****************************************************************************/
typedef struct logical_stream_s
{
ogg_stream_state os; /* logical stream of packets */
- int i_serial_no;
- int i_cat; /* AUDIO_ES, VIDEO_ES */
- int i_activated;
- vlc_fourcc_t i_fourcc;
- vlc_fourcc_t i_codec;
+ es_format_t fmt;
+ es_out_id_t *p_es;
+ double f_rate;
- es_descriptor_t *p_es;
- int b_selected; /* newly selected */
+ 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
/* program clock reference (in units of 90kHz) derived from the previous
* granulepos */
- mtime_t i_pcr;
- long l_previous_granulepos;
+ mtime_t i_pcr;
+ mtime_t i_interpolated_pcr;
+ mtime_t i_previous_pcr;
- /* info from logical streams */
- double i_rate;
- int i_bitrate;
+ /* Misc */
int b_reinit;
-
- BITMAPINFOHEADER *p_bih;
- WAVEFORMATEX *p_wf;
+ int i_theora_keyframe_granule_shift;
} logical_stream_t;
int i_streams; /* number of logical bitstreams */
logical_stream_t **pp_stream; /* pointer to an array of logical streams */
- /* current audio and video es */
- logical_stream_t *p_stream_video;
- logical_stream_t *p_stream_audio;
-
- /* stream we use as a time reference for demux reading speed */
- logical_stream_t *p_stream_timeref;
-
/* program clock reference (in units of 90kHz) derived from the pcr of
- * one of the sub-streams (p_stream_timeref) */
+ * the sub-streams */
mtime_t i_pcr;
+ int i_old_synchro_state;
- mtime_t i_length;
- int b_seekable;
+ /* stream state */
+ int i_eos;
};
/* OggDS headers for the new header format (used in ogm files) */
ogg_int32_t width;
ogg_int32_t height;
} stream_header_video;
-
+
typedef struct stream_header_audio
{
ogg_int16_t channels;
#define PACKET_LEN_BITS2 0x02
#define PACKET_IS_SYNCPOINT 0x08
-/* Some functions to manipulate memory */
-static uint16_t GetWLE( uint8_t *p_buff )
-{
- return( (p_buff[0]) + ( p_buff[1] <<8 ) );
-}
-
-static uint32_t GetDWLE( uint8_t *p_buff )
-{
- return( p_buff[0] + ( p_buff[1] <<8 ) +
- ( p_buff[2] <<16 ) + ( p_buff[3] <<24 ) );
-}
-
-static uint64_t GetQWLE( uint8_t *p_buff )
-{
- return( GetDWLE( p_buff ) + ( ((uint64_t)GetDWLE( p_buff + 4 )) << 32 ) );
-}
/*****************************************************************************
* Local prototypes
*****************************************************************************/
static int Activate ( vlc_object_t * );
static void Deactivate( vlc_object_t * );
static int Demux ( input_thread_t * );
-
-/* Stream managment */
-static int Ogg_StreamStart ( input_thread_t *, demux_sys_t *, int );
-static int Ogg_StreamSeek ( input_thread_t *, demux_sys_t *, int, mtime_t );
-static void Ogg_StreamStop ( input_thread_t *, demux_sys_t *, int );
+static int Control ( input_thread_t *, int, va_list );
/* Bitstream manipulation */
static int Ogg_Check ( input_thread_t *p_input );
static int Ogg_ReadPage ( input_thread_t *, demux_sys_t *, ogg_page * );
+static void Ogg_UpdatePCR ( logical_stream_t *, ogg_packet * );
static void Ogg_DecodePacket ( input_thread_t *p_input,
- logical_stream_t *p_stream,
- ogg_packet *p_oggpacket );
-static int Ogg_FindLogicalStreams( input_thread_t *p_input,
- demux_sys_t *p_ogg );
+ logical_stream_t *p_stream, ogg_packet * );
+
+static int Ogg_BeginningOfStream( input_thread_t *p_input, demux_sys_t *p_ogg);
+static int Ogg_FindLogicalStreams( input_thread_t *p_input,demux_sys_t *p_ogg);
+static void Ogg_EndOfStream( input_thread_t *p_input, demux_sys_t *p_ogg );
/*****************************************************************************
* Module descriptor
*****************************************************************************/
vlc_module_begin();
- set_description( _("ogg stream demux" ) );
+ set_description( _("ogg stream demuxer" ) );
set_capability( "demux", 50 );
set_callbacks( Activate, Deactivate );
add_shortcut( "ogg" );
vlc_module_end();
-/*****************************************************************************
- * Stream managment
- *****************************************************************************/
-static int Ogg_StreamStart( input_thread_t *p_input,
- demux_sys_t *p_ogg, int i_stream )
-{
-#define p_stream p_ogg->pp_stream[i_stream]
- if( !p_stream->p_es )
- {
- msg_Warn( p_input, "stream[%d] unselectable", i_stream );
- return( 0 );
- }
- if( p_stream->i_activated )
- {
- msg_Warn( p_input, "stream[%d] already selected", i_stream );
- return( 1 );
- }
-
- if( !p_stream->p_es->p_decoder_fifo )
- {
- vlc_mutex_lock( &p_input->stream.stream_lock );
- input_SelectES( p_input, p_stream->p_es );
- vlc_mutex_unlock( &p_input->stream.stream_lock );
- }
- p_stream->i_activated = p_stream->p_es->p_decoder_fifo ? 1 : 0;
-
- /* Feed the backup header to the decoder */
- if( !p_stream->b_force_backup )
- {
- int i;
- for( i = 0; i < p_stream->i_packets_backup; i++ )
- {
- Ogg_DecodePacket( p_input, p_stream,
- &p_stream->p_packets_backup[i] );
- }
- }
-
- //Ogg_StreamSeek( p_input, p_ogg, i_stream, p_ogg->i_time );
-
- return( p_stream->i_activated );
-#undef p_stream
-}
-
-static void Ogg_StreamStop( input_thread_t *p_input,
- demux_sys_t *p_ogg, int i_stream )
-{
-#define p_stream p_ogg->pp_stream[i_stream]
-
- if( !p_stream->i_activated )
- {
- msg_Warn( p_input, "stream[%d] already unselected", i_stream );
- return;
- }
-
- if( p_stream->p_es->p_decoder_fifo )
- {
- vlc_mutex_lock( &p_input->stream.stream_lock );
- input_UnselectES( p_input, p_stream->p_es );
- vlc_mutex_unlock( &p_input->stream.stream_lock );
- }
-
- p_stream->i_activated = 0;
-
-#undef p_stream
-}
-
-static int Ogg_StreamSeek( input_thread_t *p_input, demux_sys_t *p_ogg,
- int i_stream, mtime_t i_date )
-{
-#define p_stream p_ogg->pp_stream[i_stream]
-
- /* FIXME: todo */
-
- return 1;
-#undef p_stream
-}
-
/****************************************************************************
* Ogg_Check: Check we are dealing with an ogg stream.
****************************************************************************/
static int Ogg_Check( input_thread_t *p_input )
{
- u8 *p_peek;
+ uint8_t *p_peek;
int i_size = input_Peek( p_input, &p_peek, 4 );
/* Check for the Ogg capture pattern */
return VLC_SUCCESS;
}
+/****************************************************************************
+ * Ogg_UpdatePCR: update the PCR (90kHz program clock reference) for the
+ * current stream.
+ ****************************************************************************/
+static void Ogg_UpdatePCR( logical_stream_t *p_stream,
+ ogg_packet *p_oggpacket )
+{
+ /* Convert the granulepos into a pcr */
+ if( p_oggpacket->granulepos >= 0 )
+ {
+ if( p_stream->fmt.i_codec != VLC_FOURCC( 't','h','e','o' ) )
+ {
+ p_stream->i_pcr = p_oggpacket->granulepos * 90000
+ / p_stream->f_rate;
+ }
+ else
+ {
+ ogg_int64_t iframe = p_oggpacket->granulepos >>
+ p_stream->i_theora_keyframe_granule_shift;
+ ogg_int64_t pframe = p_oggpacket->granulepos -
+ ( iframe << p_stream->i_theora_keyframe_granule_shift );
+
+ p_stream->i_pcr = ( iframe + pframe ) * 90000
+ / p_stream->f_rate;
+ }
+
+ p_stream->i_interpolated_pcr = p_stream->i_pcr;
+ }
+ else
+ {
+ p_stream->i_pcr = -1;
+
+ /* no granulepos available, try to interpolate the pcr.
+ * If we can't then don't touch the old value. */
+ if( p_stream->fmt.i_cat == VIDEO_ES )
+ /* 1 frame per packet */
+ p_stream->i_interpolated_pcr += (90000 / p_stream->f_rate);
+ else if( p_stream->fmt.i_bitrate )
+ p_stream->i_interpolated_pcr += ( p_oggpacket->bytes * 90000
+ / p_stream->fmt.i_bitrate / 8 );
+ }
+}
+
/****************************************************************************
* Ogg_DecodePacket: Decode an Ogg packet.
****************************************************************************/
logical_stream_t *p_stream,
ogg_packet *p_oggpacket )
{
- pes_packet_t *p_pes;
- data_packet_t *p_data;
- demux_sys_t *p_ogg = p_input->p_demux_data;
+ block_t *p_block;
+ vlc_bool_t b_selected;
int i_header_len = 0;
+ mtime_t i_pts;
+
+ /* Sanity check */
+ if( !p_oggpacket->bytes )
+ {
+ msg_Dbg( p_input, "discarding 0 sized packet" );
+ return;
+ }
if( p_stream->b_force_backup )
{
- /* Backup the ogg packet (likely an header) */
ogg_packet *p_packet_backup;
p_stream->i_packets_backup++;
+ switch( p_stream->fmt.i_codec )
+ {
+ case VLC_FOURCC( 'v','o','r','b' ):
+ case VLC_FOURCC( 's','p','x',' ' ):
+ case VLC_FOURCC( 't','h','e','o' ):
+ if( p_stream->i_packets_backup == 3 ) p_stream->b_force_backup = 0;
+ break;
+
+ case VLC_FOURCC( 'f','l','a','c' ):
+ if( p_stream->i_packets_backup == 1 ) return;
+ else 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_input, "Flac header, channels: %i, rate: %i",
+ p_stream->fmt.audio.i_channels,
+ (int)p_stream->f_rate );
+ }
+ else
+ {
+ msg_Dbg( p_input, "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_input->p_es_out,
+ &p_stream->fmt );
+ }
+ else
+ {
+ /* This ain't a STREAMINFO metadata */
+ msg_Dbg( p_input, "Invalid FLAC STREAMINFO metadata" );
+ }
+ 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;
+ }
+ break;
+
+ default:
+ p_stream->b_force_backup = 0;
+ break;
+ }
+
+ /* 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->bytes = p_oggpacket->bytes;
p_packet_backup->granulepos = p_oggpacket->granulepos;
+
+ if( p_oggpacket->granulepos >= 0 )
+ {
+ /* 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_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_input->p_es_out, ES_OUT_GET_ES_STATE,
+ p_stream->p_es, &b_selected );
- switch( p_stream->i_fourcc )
+ 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 )
{
- case VLC_FOURCC( 'v','o','r','b' ):
- if( p_stream->i_packets_backup == 3 ) p_stream->b_force_backup = 0;
- break;
+ 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 / 90000;
- default:
- p_stream->b_force_backup = 0;
- break;
+ Ogg_DecodePacket( p_input, p_stream,
+ &p_stream->p_packets_backup[i] );
+ }
}
}
- if( !p_stream->p_es->p_decoder_fifo )
+ /* Convert the pcr into a pts */
+ if( p_stream->fmt.i_codec == VLC_FOURCC( 'v','o','r','b' ) ||
+ p_stream->fmt.i_codec == VLC_FOURCC( 's','p','x',' ' ) ||
+ p_stream->fmt.i_codec == VLC_FOURCC( 'f','l','a','c' ) )
{
- /* This stream isn't currently selected so we don't need to decode it,
- * but we do need to store its pcr as it might be selected later on. */
+ if( p_stream->i_pcr >= 0 )
+ {
+ /* This is for streams where the granulepos of the header packets
+ * doesn't match these of the data packets (eg. ogg web radios). */
+ if( p_stream->i_previous_pcr == 0 &&
+ p_stream->i_pcr > 3 * DEFAULT_PTS_DELAY * 9/100 )
+ p_input->stream.p_selected_program->i_synchro_state =
+ SYNCHRO_REINIT;
+
+ p_stream->i_previous_pcr = p_stream->i_pcr;
+
+ /* Call the pace control */
+ if( p_input->stream.p_selected_program->i_synchro_state ==
+ SYNCHRO_REINIT )
+ input_ClockManageRef( p_input,
+ p_input->stream.p_selected_program,
+ p_stream->i_pcr );
+ }
- /* Convert the next granule into a pcr */
- p_stream->i_pcr = ( p_oggpacket->granulepos < 0 ) ?
- p_stream->i_pcr + ( p_oggpacket->bytes * 90000
- / p_stream->i_bitrate / 8 ):
- p_oggpacket->granulepos * 90000 / p_stream->i_rate;
+ /* The granulepos is the end date of the sample */
+ i_pts = ( p_stream->i_pcr < 0 ) ? 0 :
+ input_ClockGetTS( p_input, p_input->stream.p_selected_program,
+ p_stream->i_pcr );
- return;
+ /* Convert the granulepos into the next pcr */
+ Ogg_UpdatePCR( p_stream, p_oggpacket );
+ }
+ else
+ {
+ /* Convert the granulepos into the current pcr */
+ Ogg_UpdatePCR( p_stream, p_oggpacket );
+
+ if( p_stream->i_pcr >= 0 )
+ {
+ /* This is for streams where the granulepos of the header packets
+ * doesn't match these of the data packets (eg. ogg web radios). */
+ if( p_stream->i_previous_pcr == 0 &&
+ p_stream->i_pcr > 3 * DEFAULT_PTS_DELAY * 9/100 )
+ p_input->stream.p_selected_program->i_synchro_state =
+ SYNCHRO_REINIT;
+
+ p_stream->i_previous_pcr = p_stream->i_pcr;
+
+ /* Call the pace control */
+ if( p_input->stream.p_selected_program->i_synchro_state ==
+ SYNCHRO_REINIT )
+ input_ClockManageRef( p_input,
+ p_input->stream.p_selected_program,
+ p_stream->i_pcr );
+ }
+
+ /* The granulepos is the start date of the sample */
+ i_pts = ( p_stream->i_pcr < 0 ) ? 0 :
+ input_ClockGetTS( p_input, p_input->stream.p_selected_program,
+ p_stream->i_pcr );
}
- if( !( p_pes = input_NewPES( p_input->p_method_data ) ) )
+ if( !b_selected )
{
+ /* 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;
}
- if( !( p_data = input_NewPacket( p_input->p_method_data,
- p_oggpacket->bytes ) ) )
+
+ if( !( p_block = block_New( p_input, p_oggpacket->bytes ) ) )
{
- input_DeletePES( p_input->p_method_data, p_pes );
return;
}
- /* Convert the pcr into a pts */
- p_pes->i_pts = ( p_stream->i_pcr < 0 ) ? 0 :
- input_ClockGetTS( p_input, p_input->stream.p_selected_program,
- p_stream->i_pcr );
-
- /* Convert the next granule into a pcr */
- if( p_oggpacket->granulepos < 0 )
+ if( p_stream->fmt.i_cat == AUDIO_ES )
+ p_block->i_dts = p_block->i_pts = i_pts;
+ else if( p_stream->fmt.i_cat == SPU_ES )
{
- /* FIXME: ffmpeg doesn't like null pts */
- if( p_stream->i_cat == VIDEO_ES )
- p_stream->i_pcr += (90000 / p_stream->i_rate);
- else
- p_stream->i_pcr = -1;
+ p_block->i_pts = i_pts;
+ p_block->i_dts = 0;
}
+ else if( p_stream->fmt.i_codec == VLC_FOURCC( 't','h','e','o' ) )
+ p_block->i_dts = p_block->i_pts = i_pts;
else
{
- p_stream->i_pcr = p_oggpacket->granulepos * 90000 / p_stream->i_rate;
+ p_block->i_dts = i_pts;
+ p_block->i_pts = 0;
}
- /* Update the main pcr */
- if( p_stream == p_ogg->p_stream_timeref )
- {
- if( p_ogg->p_stream_timeref->i_pcr >= 0 )
- {
- p_ogg->i_pcr = p_ogg->p_stream_timeref->i_pcr;
- }
- else
- {
- p_ogg->i_pcr += ( p_oggpacket->bytes * 90000
- / p_stream->i_bitrate / 8 );
- }
- }
-
- p_pes->i_nb_data = 1;
- p_pes->i_dts = p_oggpacket->granulepos;
- p_pes->p_first = p_pes->p_last = p_data;
- p_pes->i_pes_size = p_oggpacket->bytes;
-
- if( p_stream->i_fourcc != VLC_FOURCC( 'v','o','r','b' ) )
+ if( p_stream->fmt.i_codec != VLC_FOURCC( 'v','o','r','b' ) &&
+ p_stream->fmt.i_codec != VLC_FOURCC( 's','p','x',' ' ) &&
+ p_stream->fmt.i_codec != VLC_FOURCC( 'f','l','a','c' ) &&
+ p_stream->fmt.i_codec != VLC_FOURCC( 't','a','r','k' ) &&
+ p_stream->fmt.i_codec != VLC_FOURCC( 't','h','e','o' ) )
{
/* Remove the header from the packet */
i_header_len = (*p_oggpacket->packet & PACKET_LEN_BITS01) >> 6;
i_header_len |= (*p_oggpacket->packet & PACKET_LEN_BITS2) << 1;
i_header_len++;
- p_pes->i_pes_size -= i_header_len;
+ p_block->i_buffer -= i_header_len;
}
- memcpy( p_data->p_payload_start,
- p_oggpacket->packet + i_header_len,
- p_oggpacket->bytes - i_header_len );
+ if( p_stream->fmt.i_codec == VLC_FOURCC( 't','a','r','k' ) )
+ {
+ /* FIXME: the biggest hack I've ever done */
+ msg_Warn( p_input, "tark pts: "I64Fd", granule: "I64Fd,
+ p_block->i_pts, p_block->i_dts );
+ msleep(10000);
+ }
- p_data->p_payload_end = p_data->p_payload_start + p_pes->i_pes_size;
+ memcpy( p_block->p_buffer, p_oggpacket->packet + i_header_len,
+ p_oggpacket->bytes - i_header_len );
- input_DecodePES( p_stream->p_es->p_decoder_fifo, p_pes );
+ es_out_Send( p_input->p_es_out, p_stream->p_es, p_block );
}
/****************************************************************************
ogg_page oggpage;
int i_stream;
+#define p_stream p_ogg->pp_stream[p_ogg->i_streams - 1]
+
while( Ogg_ReadPage( p_input, p_ogg, &oggpage ) == VLC_SUCCESS )
{
if( ogg_page_bos( &oggpage ) )
realloc( p_ogg->pp_stream, p_ogg->i_streams *
sizeof(logical_stream_t *) );
-#define p_stream p_ogg->pp_stream[p_ogg->i_streams - 1]
-
p_stream = malloc( sizeof(logical_stream_t) );
memset( p_stream, 0, sizeof(logical_stream_t) );
+ 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 );
ogg_stream_init( &p_stream->os, p_stream->i_serial_no );
- /* The first stream we find is our timeref (might be changed
- * later on) */
- p_ogg->p_stream_timeref = p_stream;
-
/* Extract the initial header from the first page and verify
* the codec type of tis Ogg bitstream */
if( ogg_stream_pagein( &p_stream->os, &oggpage ) < 0 )
oggpack_buffer opb;
msg_Dbg( p_input, "found vorbis header" );
- p_stream->i_cat = AUDIO_ES;
- p_stream->i_fourcc = VLC_FOURCC( 'v','o','r','b' );
+ p_stream->fmt.i_cat = AUDIO_ES;
+ p_stream->fmt.i_codec = VLC_FOURCC( 'v','o','r','b' );
/* Signal that we want to keep a backup of the vorbis
* stream headers. They will be used when switching between
/* Cheat and get additionnal info ;) */
oggpack_readinit( &opb, oggpacket.packet, oggpacket.bytes);
- oggpack_adv( &opb, 96 );
- p_stream->i_rate = oggpack_read( &opb, 32 );
+ oggpack_adv( &opb, 88 );
+ p_stream->fmt.audio.i_channels = oggpack_read( &opb, 8 );
+ p_stream->f_rate = p_stream->fmt.audio.i_rate =
+ oggpack_read( &opb, 32 );
oggpack_adv( &opb, 32 );
- p_stream->i_bitrate = oggpack_read( &opb, 32 );
+ p_stream->fmt.i_bitrate = oggpack_read( &opb, 32 );
+ }
+ /* Check for Speex header */
+ 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 );
+
+ msg_Dbg( p_input, "found speex header, channels: %i, "
+ "rate: %i, bitrate: %i",
+ p_stream->fmt.audio.i_channels,
+ (int)p_stream->f_rate, p_stream->fmt.i_bitrate );
+ }
+ /* Check for Flac header */
+ else if( oggpacket.bytes >= 4 &&
+ ! strncmp( &oggpacket.packet[0], "fLaC", 4 ) )
+ {
+ msg_Dbg( p_input, "found Flac header" );
+
+ /* Grrrr!!!! Did they really have to put all the
+ * important info in the second header packet!!!
+ * (STREAMINFO metadata is in the following packet) */
+ p_stream->b_force_backup = 1;
+
+ p_stream->fmt.i_cat = AUDIO_ES;
+ p_stream->fmt.i_codec = VLC_FOURCC( 'f','l','a','c' );
+ }
+ /* Check for Theora header */
+ else if( oggpacket.bytes >= 7 &&
+ ! strncmp( &oggpacket.packet[1], "theora", 6 ) )
+ {
+ bs_t bitstream;
+ int i_fps_numerator;
+ int i_fps_denominator;
+ int i_keyframe_frequency_force;
+
+ msg_Dbg( p_input, "found theora header" );
+ 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
+ * stream headers. They will be used when switching between
+ * audio streams. */
+ p_stream->b_force_backup = 1;
+
+ /* Cheat and get additionnal info ;) */
+ bs_init( &bitstream, oggpacket.packet, oggpacket.bytes );
+ bs_skip( &bitstream, 56 );
+ bs_read( &bitstream, 8 ); /* major version num */
+ bs_read( &bitstream, 8 ); /* minor version num */
+ bs_read( &bitstream, 8 ); /* subminor version num */
+ bs_read( &bitstream, 16 ) /*<< 4*/; /* width */
+ bs_read( &bitstream, 16 ) /*<< 4*/; /* height */
+ bs_read( &bitstream, 24 ); /* frame width */
+ bs_read( &bitstream, 24 ); /* frame height */
+ bs_read( &bitstream, 8 ); /* x offset */
+ bs_read( &bitstream, 8 ); /* y offset */
+
+ i_fps_numerator = bs_read( &bitstream, 32 );
+ i_fps_denominator = bs_read( &bitstream, 32 );
+ bs_read( &bitstream, 24 ); /* aspect_numerator */
+ bs_read( &bitstream, 24 ); /* aspect_denominator */
+ i_keyframe_frequency_force = 1 << bs_read( &bitstream, 5 );
+ bs_read( &bitstream, 8 ); /* colorspace */
+ p_stream->fmt.i_bitrate = bs_read( &bitstream, 24 );
+ bs_read( &bitstream, 6 ); /* quality */
+
+ /* granule_shift = i_log( frequency_force -1 ) */
+ p_stream->i_theora_keyframe_granule_shift = 0;
+ i_keyframe_frequency_force--;
+ while( i_keyframe_frequency_force )
+ {
+ p_stream->i_theora_keyframe_granule_shift++;
+ i_keyframe_frequency_force >>= 1;
+ }
+
+ p_stream->f_rate = ((float)i_fps_numerator) /
+ i_fps_denominator;
+ msg_Dbg( p_input,
+ "found theora header, bitrate: %i, rate: %f",
+ p_stream->fmt.i_bitrate, p_stream->f_rate );
+
+ /* Save this data in p_extra for ffmpeg */
+ p_stream->fmt.i_extra = oggpacket.bytes;
+ p_stream->fmt.p_extra = malloc( oggpacket.bytes );
+ memcpy( p_stream->fmt.p_extra,
+ oggpacket.packet, oggpacket.bytes );
+ }
+ /* Check for Tarkin header */
+ else if( oggpacket.bytes >= 7 &&
+ ! strncmp( &oggpacket.packet[1], "tarkin", 6 ) )
+ {
+ oggpack_buffer opb;
+
+ msg_Dbg( p_input, "found tarkin header" );
+ p_stream->fmt.i_cat = VIDEO_ES;
+ p_stream->fmt.i_codec = VLC_FOURCC( 't','a','r','k' );
+
+ /* Cheat and get additionnal info ;) */
+ oggpack_readinit( &opb, oggpacket.packet, oggpacket.bytes);
+ oggpack_adv( &opb, 88 );
+ oggpack_adv( &opb, 104 );
+ p_stream->fmt.i_bitrate = oggpack_read( &opb, 32 );
+ p_stream->f_rate = 2; /* FIXME */
+ msg_Dbg( p_input,
+ "found tarkin header, bitrate: %i, rate: %f",
+ p_stream->fmt.i_bitrate, p_stream->f_rate );
+ }
+ else if( oggpacket.bytes >= 142 &&
+ !strncmp( &oggpacket.packet[1],
+ "Direct Show Samples embedded in Ogg", 35 ))
+ {
+ /* Old header type */
+
+ /* Check for video header (old format) */
+ if( GetDWLE((oggpacket.packet+96)) == 0x05589f80 &&
+ oggpacket.bytes >= 184 )
+ {
+ p_stream->fmt.i_cat = VIDEO_ES;
+ p_stream->fmt.i_codec =
+ VLC_FOURCC( oggpacket.packet[68],
+ oggpacket.packet[69],
+ oggpacket.packet[70],
+ oggpacket.packet[71] );
+ msg_Dbg( p_input, "found video header of type: %.4s",
+ (char *)&p_stream->fmt.i_codec );
+
+ p_stream->f_rate = 10000000.0 /
+ GetQWLE((oggpacket.packet+164));
+ p_stream->fmt.video.i_bits_per_pixel =
+ GetWLE((oggpacket.packet+182));
+ if( !p_stream->fmt.video.i_bits_per_pixel )
+ /* hack, FIXME */
+ p_stream->fmt.video.i_bits_per_pixel = 24;
+ p_stream->fmt.video.i_width =
+ GetDWLE((oggpacket.packet+176));
+ p_stream->fmt.video.i_height =
+ GetDWLE((oggpacket.packet+180));
+
+ msg_Dbg( p_input,
+ "fps: %f, width:%i; height:%i, bitcount:%i",
+ p_stream->f_rate,
+ p_stream->fmt.video.i_width,
+ p_stream->fmt.video.i_height,
+ p_stream->fmt.video.i_bits_per_pixel);
+
+ }
+ /* Check for audio header (old format) */
+ else if( GetDWLE((oggpacket.packet+96)) == 0x05589F81 )
+ {
+ unsigned int i_extra_size;
+ unsigned int i_format_tag;
+
+ p_stream->fmt.i_cat = AUDIO_ES;
+
+ i_extra_size = GetWLE((oggpacket.packet+140));
+ if( i_extra_size )
+ {
+ p_stream->fmt.i_extra = i_extra_size;
+ p_stream->fmt.p_extra = malloc( i_extra_size );
+ memcpy( p_stream->fmt.p_extra,
+ oggpacket.packet + 142, i_extra_size );
+ }
+
+ i_format_tag = GetWLE((oggpacket.packet+124));
+ p_stream->fmt.audio.i_channels =
+ GetWLE((oggpacket.packet+126));
+ p_stream->f_rate = p_stream->fmt.audio.i_rate =
+ GetDWLE((oggpacket.packet+128));
+ p_stream->fmt.i_bitrate =
+ GetDWLE((oggpacket.packet+132)) * 8;
+ p_stream->fmt.audio.i_blockalign =
+ GetWLE((oggpacket.packet+136));
+ p_stream->fmt.audio.i_bitspersample =
+ GetWLE((oggpacket.packet+138));
+
+ switch( i_format_tag )
+ {
+ case WAVE_FORMAT_PCM:
+ p_stream->fmt.i_codec =
+ VLC_FOURCC( 'a', 'r', 'a', 'w' );
+ break;
+ case WAVE_FORMAT_MPEG:
+ case WAVE_FORMAT_MPEGLAYER3:
+ p_stream->fmt.i_codec =
+ VLC_FOURCC( 'm', 'p', 'g', 'a' );
+ break;
+ case WAVE_FORMAT_A52:
+ p_stream->fmt.i_codec =
+ VLC_FOURCC( 'a', '5', '2', ' ' );
+ break;
+ case WAVE_FORMAT_WMA1:
+ p_stream->fmt.i_codec =
+ VLC_FOURCC( 'w', 'm', 'a', '1' );
+ break;
+ case WAVE_FORMAT_WMA2:
+ p_stream->fmt.i_codec =
+ VLC_FOURCC( 'w', 'm', 'a', '2' );
+ break;
+ default:
+ p_stream->fmt.i_codec = VLC_FOURCC( 'm', 's',
+ ( i_format_tag >> 8 ) & 0xff,
+ i_format_tag & 0xff );
+ }
+
+ msg_Dbg( p_input, "found audio header of type: %.4s",
+ (char *)&p_stream->fmt.i_codec );
+ msg_Dbg( p_input, "audio:0x%4.4x channels:%d %dHz "
+ "%dbits/sample %dkb/s",
+ i_format_tag,
+ p_stream->fmt.audio.i_channels,
+ p_stream->fmt.audio.i_rate,
+ p_stream->fmt.audio.i_bitspersample,
+ p_stream->fmt.i_bitrate / 1024 );
+
+ }
+ else
+ {
+ msg_Dbg( p_input, "stream %d has an old header "
+ "but is of an unknown type", p_ogg->i_streams-1 );
+ free( p_stream );
+ p_ogg->i_streams--;
+ }
}
else if( (*oggpacket.packet & PACKET_TYPE_BITS )
- == PACKET_TYPE_HEADER &&
+ == PACKET_TYPE_HEADER &&
oggpacket.bytes >= (int)sizeof(stream_header)+1 )
{
stream_header *st = (stream_header *)(oggpacket.packet+1);
/* Check for video header (new format) */
if( !strncmp( st->streamtype, "video", 5 ) )
{
- p_stream->i_cat = VIDEO_ES;
+ p_stream->fmt.i_cat = VIDEO_ES;
/* We need to get rid of the header packet */
ogg_stream_packetout( &p_stream->os, &oggpacket );
- p_stream->p_bih = (BITMAPINFOHEADER *)
- malloc( sizeof(BITMAPINFOHEADER) );
- if( !p_stream->p_bih )
- {
- /* Mem allocation error, just ignore the stream */
- free( p_stream );
- p_ogg->i_streams--;
- continue;
- }
- p_stream->p_bih->biSize = sizeof(BITMAPINFOHEADER);
- p_stream->p_bih->biCompression=
- p_stream->i_fourcc = VLC_FOURCC( st->subtype[0],
- st->subtype[1],
- st->subtype[2],
- st->subtype[3] );
+ p_stream->fmt.i_codec =
+ VLC_FOURCC( st->subtype[0], st->subtype[1],
+ st->subtype[2], st->subtype[3] );
msg_Dbg( p_input, "found video header of type: %.4s",
- (char *)&p_stream->i_fourcc );
-
- p_stream->i_rate = 10000000.0 /
- GetQWLE((uint8_t *)&st->time_unit);
- p_stream->p_bih->biBitCount =
- GetWLE((uint8_t *)&st->bits_per_sample);
- p_stream->p_bih->biWidth =
- GetDWLE((uint8_t *)&st->sh.video.width);
- p_stream->p_bih->biHeight =
- GetDWLE((uint8_t *)&st->sh.video.height);
- p_stream->p_bih->biPlanes= 1 ;
- p_stream->p_bih->biSizeImage =
- (p_stream->p_bih->biBitCount >> 3) *
- p_stream->p_bih->biWidth *
- p_stream->p_bih->biHeight;
+ (char *)&p_stream->fmt.i_codec );
- msg_Dbg( p_input,
- "fps: %f, width:%i; height:%i, bitcount:%i",
- p_stream->i_rate, p_stream->p_bih->biWidth,
- p_stream->p_bih->biHeight,
- p_stream->p_bih->biBitCount);
+ p_stream->f_rate = 10000000.0 /
+ GetQWLE(&st->time_unit);
+ p_stream->fmt.video.i_bits_per_pixel =
+ GetWLE(&st->bits_per_sample);
+ p_stream->fmt.video.i_width =
+ GetDWLE(&st->sh.video.width);
+ p_stream->fmt.video.i_height =
+ GetDWLE(&st->sh.video.height);
- p_stream->i_bitrate = 1; /* FIXME */
+ msg_Dbg( p_input,
+ "fps: %f, width:%i; height:%i, bitcount:%i",
+ p_stream->f_rate,
+ p_stream->fmt.video.i_width,
+ p_stream->fmt.video.i_height,
+ p_stream->fmt.video.i_bits_per_pixel );
}
/* Check for audio header (new format) */
else if( !strncmp( st->streamtype, "audio", 5 ) )
{
char p_buffer[5];
+ int i_format_tag;
- p_stream->i_cat = AUDIO_ES;
+ p_stream->fmt.i_cat = AUDIO_ES;
/* We need to get rid of the header packet */
ogg_stream_packetout( &p_stream->os, &oggpacket );
- p_stream->p_wf = (WAVEFORMATEX *)
- malloc( sizeof(WAVEFORMATEX) );
- if( !p_stream->p_wf )
- {
- /* Mem allocation error, just ignore the stream */
- free( p_stream );
- p_ogg->i_streams--;
- continue;
- }
-
memcpy( p_buffer, st->subtype, 4 );
p_buffer[4] = '\0';
- p_stream->p_wf->wFormatTag = strtol(p_buffer,NULL,16);
- p_stream->p_wf->nChannels =
- GetWLE((uint8_t *)&st->sh.audio.channels);
- p_stream->i_rate = p_stream->p_wf->nSamplesPerSec =
- GetQWLE((uint8_t *)&st->samples_per_unit);
- p_stream->i_bitrate = p_stream->p_wf->nAvgBytesPerSec =
- GetDWLE((uint8_t *)&st->sh.audio.avgbytespersec);
- p_stream->i_bitrate *= 8;
- p_stream->p_wf->nBlockAlign =
- GetWLE((uint8_t *)&st->sh.audio.blockalign);
- p_stream->p_wf->wBitsPerSample =
- GetWLE((uint8_t *)&st->bits_per_sample);
- p_stream->p_wf->cbSize = 0;
-
- switch( p_stream->p_wf->wFormatTag )
+ i_format_tag = strtol(p_buffer,NULL,16);
+ p_stream->fmt.audio.i_channels =
+ GetWLE(&st->sh.audio.channels);
+ p_stream->f_rate = p_stream->fmt.audio.i_rate =
+ GetQWLE(&st->samples_per_unit);
+ p_stream->fmt.i_bitrate =
+ GetDWLE(&st->sh.audio.avgbytespersec) * 8;
+ p_stream->fmt.audio.i_blockalign =
+ GetWLE(&st->sh.audio.blockalign);
+ p_stream->fmt.audio.i_bitspersample =
+ GetWLE(&st->bits_per_sample);
+
+ switch( i_format_tag )
{
case WAVE_FORMAT_PCM:
- p_stream->i_fourcc =
+ p_stream->fmt.i_codec =
VLC_FOURCC( 'a', 'r', 'a', 'w' );
break;
case WAVE_FORMAT_MPEG:
case WAVE_FORMAT_MPEGLAYER3:
- p_stream->i_fourcc =
+ p_stream->fmt.i_codec =
VLC_FOURCC( 'm', 'p', 'g', 'a' );
break;
case WAVE_FORMAT_A52:
- p_stream->i_fourcc =
+ p_stream->fmt.i_codec =
VLC_FOURCC( 'a', '5', '2', ' ' );
break;
case WAVE_FORMAT_WMA1:
- p_stream->i_fourcc =
+ p_stream->fmt.i_codec =
VLC_FOURCC( 'w', 'm', 'a', '1' );
break;
case WAVE_FORMAT_WMA2:
- p_stream->i_fourcc =
+ p_stream->fmt.i_codec =
VLC_FOURCC( 'w', 'm', 'a', '2' );
break;
default:
- p_stream->i_fourcc = VLC_FOURCC( 'm', 's',
- ( p_stream->p_wf->wFormatTag >> 8 ) & 0xff,
- p_stream->p_wf->wFormatTag & 0xff );
+ p_stream->fmt.i_codec = VLC_FOURCC( 'm', 's',
+ ( i_format_tag >> 8 ) & 0xff,
+ i_format_tag & 0xff );
}
msg_Dbg( p_input, "found audio header of type: %.4s",
- (char *)&p_stream->i_fourcc );
+ (char *)&p_stream->fmt.i_codec );
msg_Dbg( p_input, "audio:0x%4.4x channels:%d %dHz "
"%dbits/sample %dkb/s",
- p_stream->p_wf->wFormatTag,
- p_stream->p_wf->nChannels,
- p_stream->p_wf->nSamplesPerSec,
- p_stream->p_wf->wBitsPerSample,
- p_stream->p_wf->nAvgBytesPerSec * 8 / 1024 );
+ i_format_tag,
+ p_stream->fmt.audio.i_channels,
+ p_stream->fmt.audio.i_rate,
+ p_stream->fmt.audio.i_bitspersample,
+ p_stream->fmt.i_bitrate / 1024 );
}
/* Check for text (subtitles) header */
else if( !strncmp(st->streamtype, "text", 4) )
{
+ /* We need to get rid of the header packet */
+ ogg_stream_packetout( &p_stream->os, &oggpacket );
+
msg_Dbg( p_input, "found text subtitles header" );
- p_stream->i_cat = SPU_ES;
- p_stream->i_fourcc =
- VLC_FOURCC( 's', 'u', 'b', 't' );
+ p_stream->fmt.i_cat = SPU_ES;
+ p_stream->fmt.i_codec = VLC_FOURCC('s','u','b','t');
+ p_stream->f_rate = 1000; /* granulepos is in milisec */
}
else
{
p_ogg->i_streams--;
}
-#undef p_stream
-
if( Ogg_ReadPage( p_input, p_ogg, &oggpage ) != VLC_SUCCESS )
return VLC_EGENERIC;
}
break;
}
}
+
return VLC_SUCCESS;
}
}
+#undef p_stream
+
return VLC_EGENERIC;
}
*****************************************************************************/
static int Activate( vlc_object_t * p_this )
{
- int i_stream, b_forced;
- demux_sys_t *p_ogg;
input_thread_t *p_input = (input_thread_t *)p_this;
+ demux_sys_t *p_ogg;
+ int b_forced;
p_input->p_demux_data = NULL;
b_forced = ( ( *p_input->psz_demux )&&
}
memset( p_ogg, 0, sizeof( demux_sys_t ) );
p_input->p_demux_data = p_ogg;
-
- p_ogg->i_pcr = 0;
- p_ogg->p_stream_timeref = NULL;
- p_ogg->b_seekable = ( ( p_input->stream.b_seekable )
- &&( p_input->stream.i_method == INPUT_METHOD_FILE ) );
+ p_ogg->pp_stream = NULL;
/* Initialize the Ogg physical bitstream parser */
ogg_sync_init( &p_ogg->oy );
- /* Find the logical streams embedded in the physical stream and
- * initialize our p_ogg structure. */
- if( Ogg_FindLogicalStreams( p_input, p_ogg ) != VLC_SUCCESS )
- {
- msg_Err( p_input, "couldn't find an ogg logical stream" );
- goto error;
- }
-
- /* Set the demux function */
+ /* Set exported functions */
p_input->pf_demux = Demux;
+ p_input->pf_demux_control = Control;
/* Initialize access plug-in structures. */
if( p_input->i_mtu == 0 )
goto error;
}
p_input->stream.p_selected_program = p_input->stream.pp_programs[0];
+ vlc_mutex_unlock( &p_input->stream.stream_lock );
+
+ /* Begnning of stream, tell the demux to look for elementary streams. */
+ p_ogg->i_eos = 0;
+
+ p_ogg->i_old_synchro_state = !SYNCHRO_REINIT;
+
+ return 0;
+
+ error:
+ Deactivate( (vlc_object_t *)p_input );
+ return -1;
+
+}
+
+/****************************************************************************
+ * Ogg_BeginningOfStream: Look for Beginning of Stream ogg pages and add
+ * Elementary streams.
+ ****************************************************************************/
+static int Ogg_BeginningOfStream( input_thread_t *p_input, demux_sys_t *p_ogg)
+{
+ int i_stream;
+
+ /* Find the logical streams embedded in the physical stream and
+ * initialize our p_ogg structure. */
+ if( Ogg_FindLogicalStreams( p_input, p_ogg ) != VLC_SUCCESS )
+ {
+ msg_Warn( p_input, "couldn't find any ogg logical stream" );
+ return VLC_EGENERIC;
+ }
+
+ vlc_mutex_lock( &p_input->stream.stream_lock );
p_input->stream.i_mux_rate = 0;
vlc_mutex_unlock( &p_input->stream.stream_lock );
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_input->p_es_out, &p_stream->fmt );
+
vlc_mutex_lock( &p_input->stream.stream_lock );
- p_stream->p_es = input_AddES( p_input,
- p_input->stream.p_selected_program,
- p_ogg->i_streams + 1, 0 );
- p_input->stream.i_mux_rate += (p_stream->i_bitrate / ( 8 * 50 ));
+ p_input->stream.i_mux_rate += (p_stream->fmt.i_bitrate / ( 8 * 50 ));
vlc_mutex_unlock( &p_input->stream.stream_lock );
- p_stream->p_es->i_stream_id = i_stream;
- p_stream->p_es->i_fourcc = p_stream->i_fourcc;
- p_stream->p_es->i_cat = p_stream->i_cat;
- p_stream->p_es->p_demux_data = p_stream->p_bih ?
- (void *)p_stream->p_bih : (void *)p_stream->p_wf;
+
+ p_stream->i_pcr = p_stream->i_previous_pcr = -1;
+ p_stream->b_reinit = 0;
#undef p_stream
}
- for( i_stream = 0; i_stream < p_ogg->i_streams; i_stream++ )
- {
-#define p_stream p_ogg->pp_stream[i_stream]
- switch( p_stream->p_es->i_cat )
- {
- case( VIDEO_ES ):
-
- if( (p_ogg->p_stream_video == NULL) )
- {
- p_ogg->p_stream_video = p_stream;
- /* TODO add test to see if a decoder has been found */
- Ogg_StreamStart( p_input, p_ogg, i_stream );
- }
- break;
-
- case( AUDIO_ES ):
- if( (p_ogg->p_stream_audio == NULL) )
- {
- p_ogg->p_stream_audio = p_stream;
- p_ogg->p_stream_timeref = p_stream;
- Ogg_StreamStart( p_input, p_ogg, i_stream );
- }
- break;
+ return VLC_SUCCESS;
+}
- default:
- break;
- }
-#undef p_stream
- }
+/****************************************************************************
+ * Ogg_EndOfStream: clean up the ES when an End of Stream is detected.
+ ****************************************************************************/
+static void Ogg_EndOfStream( input_thread_t *p_input, demux_sys_t *p_ogg )
+{
+ int i_stream, j;
- /* we select the first audio and video ES */
- vlc_mutex_lock( &p_input->stream.stream_lock );
- if( !p_ogg->p_stream_video )
- {
- msg_Warn( p_input, "no video stream found" );
- }
- if( !p_ogg->p_stream_audio )
+#define p_stream p_ogg->pp_stream[i_stream]
+ for( i_stream = 0 ; i_stream < p_ogg->i_streams; i_stream++ )
{
- msg_Warn( p_input, "no audio stream found!" );
- }
- p_input->stream.p_selected_program->b_is_ok = 1;
- vlc_mutex_unlock( &p_input->stream.stream_lock );
+ if( p_stream->p_es )
+ es_out_Del( p_input->p_es_out, p_stream->p_es );
- /* Call the pace control */
- input_ClockManageRef( p_input,
- p_input->stream.p_selected_program,
- p_ogg->i_pcr );
+ vlc_mutex_lock( &p_input->stream.stream_lock );
+ p_input->stream.i_mux_rate -= (p_stream->fmt.i_bitrate / ( 8 * 50 ));
+ vlc_mutex_unlock( &p_input->stream.stream_lock );
- return 0;
+ 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 );
- error:
- Deactivate( (vlc_object_t *)p_input );
- return -1;
+ free( p_ogg->pp_stream[i_stream] );
+ }
+#undef p_stream
+ /* Reinit p_ogg */
+ if( p_ogg->pp_stream ) free( p_ogg->pp_stream );
+ p_ogg->pp_stream = NULL;
+ p_ogg->i_streams = 0;
}
/*****************************************************************************
static void Deactivate( vlc_object_t *p_this )
{
input_thread_t *p_input = (input_thread_t *)p_this;
- demux_sys_t *p_ogg = (demux_sys_t *)p_input->p_demux_data ;
- int i, j;
+ demux_sys_t *p_ogg = (demux_sys_t *)p_input->p_demux_data ;
if( p_ogg )
{
/* Cleanup the bitstream parser */
ogg_sync_clear( &p_ogg->oy );
- for( i = 0; i < p_ogg->i_streams; i++ )
- {
- ogg_stream_clear( &p_ogg->pp_stream[i]->os );
- for( j = 0; j < p_ogg->pp_stream[i]->i_packets_backup; j++ )
- {
- free( p_ogg->pp_stream[i]->p_packets_backup[j].packet );
- }
- if( p_ogg->pp_stream[i]->p_packets_backup)
- free( p_ogg->pp_stream[i]->p_packets_backup );
-#if 0 /* hmmm, it's already freed in input_DelES() */
- if( p_ogg->pp_stream[i]->p_bih )
- free( p_ogg->pp_stream[i]->p_bih );
- if( p_ogg->pp_stream[i]->p_wf )
- free( p_ogg->pp_stream[i]->p_wf );
-#endif
- free( p_ogg->pp_stream[i] );
- }
- if( p_ogg->pp_stream ) free( p_ogg->pp_stream );
+ Ogg_EndOfStream( p_input, p_ogg );
free( p_ogg );
}
*****************************************************************************/
static int Demux( input_thread_t * p_input )
{
- int i, i_stream, b_eos = 0;
+ demux_sys_t *p_ogg = (demux_sys_t *)p_input->p_demux_data;
ogg_page oggpage;
ogg_packet oggpacket;
- demux_sys_t *p_ogg = (demux_sys_t *)p_input->p_demux_data;
+ int i_stream;
#define p_stream p_ogg->pp_stream[i_stream]
- /* detect new selected/unselected streams */
- for( i_stream = 0; i_stream < p_ogg->i_streams; i_stream++ )
- {
- if( p_stream->p_es )
- {
- if( p_stream->p_es->p_decoder_fifo &&
- !p_stream->i_activated )
- {
- Ogg_StreamStart( p_input, p_ogg, i_stream );
- }
- else
- if( !p_stream->p_es->p_decoder_fifo &&
- p_stream->i_activated )
- {
- Ogg_StreamStop( p_input, p_ogg, i_stream );
- }
- }
- }
- /* search for new video and audio stream to select
- * if current have been unselected */
- if( ( !p_ogg->p_stream_video )
- || ( !p_ogg->p_stream_video->p_es->p_decoder_fifo ) )
+ if( p_ogg->i_eos == p_ogg->i_streams )
{
- p_ogg->p_stream_video = NULL;
- for( i_stream = 0; i_stream < p_ogg->i_streams; i_stream++ )
+ if( p_ogg->i_eos )
{
- if( ( p_stream->i_cat == VIDEO_ES )
- &&( p_stream->p_es->p_decoder_fifo ) )
- {
- p_ogg->p_stream_video = p_stream;
- break;
- }
- }
- }
- if( ( !p_ogg->p_stream_audio )
- ||( !p_ogg->p_stream_audio->p_es->p_decoder_fifo ) )
- {
- p_ogg->p_stream_audio = NULL;
- for( i_stream = 0; i_stream < p_ogg->i_streams; i_stream++ )
- {
- if( ( p_stream->i_cat == AUDIO_ES )
- &&( p_stream->p_es->p_decoder_fifo ) )
- {
- p_ogg->p_stream_audio = p_stream;
- p_ogg->p_stream_timeref = p_stream;
- break;
- }
+ msg_Dbg( p_input, "end of a group of logical streams" );
+ Ogg_EndOfStream( p_input, p_ogg );
}
+
+ if( Ogg_BeginningOfStream( p_input, p_ogg ) != VLC_SUCCESS ) return 0;
+ p_ogg->i_eos = 0;
+
+ msg_Dbg( p_input, "beginning of a group of logical streams" );
+
+ p_input->stream.p_selected_program->i_synchro_state = SYNCHRO_REINIT;
+ input_ClockManageRef( p_input, p_input->stream.p_selected_program, 0 );
}
if( p_input->stream.p_selected_program->i_synchro_state == SYNCHRO_REINIT )
{
msg_Warn( p_input, "synchro reinit" );
- /* An ogg packet does only contain the starting date of the next
- * packet, not its own starting date.
- * As a quick work around, we just skip an oggpage */
-
+ if( p_ogg->i_old_synchro_state != SYNCHRO_REINIT )
for( i_stream = 0; i_stream < p_ogg->i_streams; i_stream++ )
{
/* we'll trash all the data until we find the next pcr */
p_stream->b_reinit = 1;
- p_ogg->i_pcr = 0;
+ p_stream->i_pcr = -1;
+ p_stream->i_interpolated_pcr = -1;
+ ogg_stream_reset( &p_stream->os );
}
+ if( p_ogg->i_old_synchro_state != SYNCHRO_REINIT )
+ ogg_sync_reset( &p_ogg->oy );
}
+ /*
+ * Demux an ogg page from the stream
+ */
+ if( Ogg_ReadPage( p_input, p_ogg, &oggpage ) != VLC_SUCCESS )
+ {
+ return 0; /* EOF */
+ }
- /* Demux ogg pages from the stream */
- for( i = 0; (i < PAGES_READ_ONCE) || p_ogg->p_stream_timeref->b_reinit;
- i++ )
+ /* Test for End of Stream */
+ if( ogg_page_eos( &oggpage ) ) p_ogg->i_eos++;
+
+
+ for( i_stream = 0; i_stream < p_ogg->i_streams; i_stream++ )
{
- if( Ogg_ReadPage( p_input, p_ogg, &oggpage ) != VLC_SUCCESS )
- {
- b_eos = 1;
- break;
- }
+ if( ogg_stream_pagein( &p_stream->os, &oggpage ) != 0 )
+ continue;
- for( i_stream = 0; i_stream < p_ogg->i_streams; i_stream++ )
+ while( ogg_stream_packetout( &p_stream->os, &oggpacket ) > 0 )
{
- if( ogg_stream_pagein( &p_stream->os, &oggpage ) != 0 )
- continue;
-
- while( ogg_stream_packetout( &p_stream->os, &oggpacket ) > 0 )
+ if( p_stream->b_reinit )
{
- if( !p_stream->p_es )
+ /* If synchro is re-initialized we need to drop all the packets
+ * until we find a new dated one. */
+ Ogg_UpdatePCR( p_stream, &oggpacket );
+
+ if( p_stream->i_pcr >= 0 )
{
- break;
+ p_stream->b_reinit = 0;
+ }
+ else
+ {
+ p_stream->i_interpolated_pcr = -1;
+ continue;
}
- if( p_stream->b_reinit )
+ /* An Ogg/vorbis packet contains an end date granulepos */
+ if( p_stream->fmt.i_codec == VLC_FOURCC( 'v','o','r','b' ) ||
+ p_stream->fmt.i_codec == VLC_FOURCC( 's','p','x',' ' ) ||
+ p_stream->fmt.i_codec == VLC_FOURCC( 'f','l','a','c' ) )
{
- if( oggpacket.granulepos >= 0 )
+ if( ogg_stream_packetout( &p_stream->os, &oggpacket ) > 0 )
{
- p_stream->b_reinit = 0;
- p_stream->i_pcr = oggpacket.granulepos
- * 90000 / p_stream->i_rate;
-
- if( !p_ogg->i_pcr ||
- (p_stream == p_ogg->p_stream_timeref) )
- {
- /* Call the pace control to reinitialize
- * the system clock */
- p_ogg->i_pcr = p_stream->i_pcr;
- input_ClockManageRef( p_input,
- p_input->stream.p_selected_program,
- p_ogg->i_pcr );
- }
+ Ogg_DecodePacket( p_input, p_stream, &oggpacket );
+ }
+ else
+ {
+ input_ClockManageRef( p_input,
+ p_input->stream.p_selected_program,
+ p_stream->i_pcr );
}
continue;
}
-
- Ogg_DecodePacket( p_input, p_stream, &oggpacket );
-
}
+
+ Ogg_DecodePacket( p_input, p_stream, &oggpacket );
}
-#undef p_stream
+ break;
}
- /* Call the pace control */
- if( !b_eos ) input_ClockManageRef( p_input,
- p_input->stream.p_selected_program,
- p_ogg->i_pcr );
+ i_stream = 0; p_ogg->i_pcr = -1;
+ for( ; i_stream < p_ogg->i_streams; i_stream++ )
+ {
+ if( p_stream->fmt.i_cat == SPU_ES )
+ continue;
+ if( p_stream->i_interpolated_pcr < 0 )
+ continue;
- /* Did we reach the end of stream ? */
- return( b_eos ? 0 : 1 );
+ if( p_ogg->i_pcr < 0 || p_stream->i_interpolated_pcr < p_ogg->i_pcr )
+ p_ogg->i_pcr = p_stream->i_interpolated_pcr;
+ }
+
+ if( p_ogg->i_pcr >= 0 )
+ {
+ input_ClockManageRef( p_input, p_input->stream.p_selected_program,
+ p_ogg->i_pcr );
+ }
+
+#undef p_stream
+
+ p_ogg->i_old_synchro_state =
+ p_input->stream.p_selected_program->i_synchro_state;
+
+ return 1;
+}
+
+/*****************************************************************************
+ * Control:
+ *****************************************************************************/
+static int Control( input_thread_t *p_input, int i_query, va_list args )
+{
+ demux_sys_t *p_ogg = (demux_sys_t *)p_input->p_demux_data;
+ int64_t *pi64;
+
+ switch( i_query )
+ {
+ case DEMUX_GET_TIME:
+ pi64 = (int64_t*)va_arg( args, int64_t * );
+ *pi64 = p_ogg->i_pcr * 100 / 9;
+ return VLC_SUCCESS;
+
+ default:
+ return demux_vaControlDefault( p_input, i_query, args );
+ }
}