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Commit adcebbae authored by Laurent Aimar's avatar Laurent Aimar
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* asf: added limited support of concatenated files for web radios (only 

files without index, seek isn't supported for such stream)
parent f6ac7b66
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Showing with 309 additions and 239 deletions
modules/demux/asf/asf.c
View file @ adcebbae
...@@ -87,6 +87,8 @@ struct demux_sys_t ...@@ -87,6 +87,8 @@ struct demux_sys_t
}; };
static mtime_t GetMoviePTS( demux_sys_t * ); static mtime_t GetMoviePTS( demux_sys_t * );
static int DemuxInit( demux_t * );
static void DemuxEnd( demux_t * );
static int DemuxPacket( demux_t * ); static int DemuxPacket( demux_t * );
/***************************************************************************** /*****************************************************************************
...@@ -96,14 +98,8 @@ static int Open( vlc_object_t * p_this ) ...@@ -96,14 +98,8 @@ static int Open( vlc_object_t * p_this )
{ {
demux_t *p_demux = (demux_t *)p_this; demux_t *p_demux = (demux_t *)p_this;
demux_sys_t *p_sys; demux_sys_t *p_sys;
uint8_t *p_peek;
guid_t guid; guid_t guid;
uint8_t *p_peek;
unsigned int i_stream, i;
asf_object_content_description_t *p_cd;
vlc_bool_t b_seekable;
/* a little test to see if it could be a asf stream */ /* a little test to see if it could be a asf stream */
if( stream_Peek( p_demux->s, &p_peek, 16 ) < 16 ) if( stream_Peek( p_demux->s, &p_peek, 16 ) < 16 )
...@@ -124,217 +120,12 @@ static int Open( vlc_object_t * p_this ) ...@@ -124,217 +120,12 @@ static int Open( vlc_object_t * p_this )
p_demux->p_sys = p_sys = malloc( sizeof( demux_sys_t ) ); p_demux->p_sys = p_sys = malloc( sizeof( demux_sys_t ) );
memset( p_sys, 0, sizeof( demux_sys_t ) ); memset( p_sys, 0, sizeof( demux_sys_t ) );
p_sys->i_time = -1; /* Load the headers */
p_sys->i_length = 0; if( DemuxInit( p_demux ) )
p_sys->i_bitrate = 0;
/* Now load all object ( except raw data ) */
stream_Control( p_demux->s, STREAM_CAN_FASTSEEK, &b_seekable );
if( (p_sys->p_root = ASF_ReadObjectRoot( p_demux->s, b_seekable )) == NULL )
{ {
msg_Warn( p_demux, "ASF plugin discarded (not a valid file)" );
free( p_sys );
return VLC_EGENERIC; return VLC_EGENERIC;
} }
p_sys->p_fp = p_sys->p_root->p_fp;
if( p_sys->p_fp->i_min_data_packet_size != p_sys->p_fp->i_max_data_packet_size )
{
msg_Warn( p_demux,
"ASF plugin discarded (invalid file_properties object)" );
goto error;
}
p_sys->i_track = ASF_CountObject( p_sys->p_root->p_hdr,
&asf_object_stream_properties_guid );
if( !p_sys->i_track )
{
msg_Warn( p_demux, "ASF plugin discarded (cannot find any stream!)" );
goto error;
}
msg_Dbg( p_demux, "found %d streams", p_sys->i_track );
for( i_stream = 0; i_stream < p_sys->i_track; i_stream ++ )
{
asf_track_t *tk;
asf_object_stream_properties_t *p_sp;
p_sp = ASF_FindObject( p_sys->p_root->p_hdr,
&asf_object_stream_properties_guid,
i_stream );
tk = p_sys->track[p_sp->i_stream_number] = malloc( sizeof( asf_track_t ) );
memset( tk, 0, sizeof( asf_track_t ) );
tk->i_time = -1;
tk->p_sp = p_sp;
tk->p_es = NULL;
tk->p_frame = NULL;
if( ASF_CmpGUID( &p_sp->i_stream_type, &asf_object_stream_type_audio ) &&
p_sp->i_type_specific_data_length >= sizeof( WAVEFORMATEX ) - 2 )
{
es_format_t fmt;
uint8_t *p_data = p_sp->p_type_specific_data;
es_format_Init( &fmt, AUDIO_ES, 0 );
wf_tag_to_fourcc( GetWLE( &p_data[0] ), &fmt.i_codec, NULL );
fmt.audio.i_channels = GetWLE( &p_data[2] );
fmt.audio.i_rate = GetDWLE( &p_data[4] );
fmt.i_bitrate = GetDWLE( &p_data[8] ) * 8;
fmt.audio.i_blockalign = GetWLE( &p_data[12] );
fmt.audio.i_bitspersample = GetWLE( &p_data[14] );
if( p_sp->i_type_specific_data_length > sizeof( WAVEFORMATEX ) )
{
fmt.i_extra = __MIN( GetWLE( &p_data[16] ),
p_sp->i_type_specific_data_length - sizeof( WAVEFORMATEX ) );
fmt.p_extra = malloc( fmt.i_extra );
memcpy( fmt.p_extra, &p_data[sizeof( WAVEFORMATEX )], fmt.i_extra );
}
tk->i_cat = AUDIO_ES;
tk->p_es = es_out_Add( p_demux->out, &fmt );
msg_Dbg( p_demux, "added new audio stream(codec:0x%x,ID:%d)",
GetWLE( p_data ), p_sp->i_stream_number );
}
else if( ASF_CmpGUID( &p_sp->i_stream_type, &asf_object_stream_type_video ) &&
p_sp->i_type_specific_data_length >= 11 + sizeof( BITMAPINFOHEADER ) )
{
es_format_t fmt;
uint8_t *p_data = &p_sp->p_type_specific_data[11];
es_format_Init( &fmt, VIDEO_ES,
VLC_FOURCC( p_data[16], p_data[17], p_data[18], p_data[19] ) );
fmt.video.i_width = GetDWLE( p_data + 4 );
fmt.video.i_height= GetDWLE( p_data + 8 );
if( p_sp->i_type_specific_data_length > 11 + sizeof( BITMAPINFOHEADER ) )
{
fmt.i_extra = __MIN( GetDWLE( p_data ),
p_sp->i_type_specific_data_length - 11 - sizeof( BITMAPINFOHEADER ) );
fmt.p_extra = malloc( fmt.i_extra );
memcpy( fmt.p_extra, &p_data[sizeof( BITMAPINFOHEADER )], fmt.i_extra );
}
tk->i_cat = VIDEO_ES;
tk->p_es = es_out_Add( p_demux->out, &fmt );
msg_Dbg( p_demux, "added new video stream(ID:%d)",
p_sp->i_stream_number );
}
else
{
tk->i_cat = UNKNOWN_ES;
msg_Dbg( p_demux, "ignoring unknown stream(ID:%d)",
p_sp->i_stream_number );
}
}
p_sys->i_data_begin = p_sys->p_root->p_data->i_object_pos + 50;
if( p_sys->p_root->p_data->i_object_size != 0 )
{ /* local file */
p_sys->i_data_end = p_sys->p_root->p_data->i_object_pos +
p_sys->p_root->p_data->i_object_size;
}
else
{ /* live/broacast */
p_sys->i_data_end = -1;
}
/* go to first packet */
stream_Seek( p_demux->s, p_sys->i_data_begin );
/* try to calculate movie time */
if( p_sys->p_fp->i_data_packets_count > 0 )
{
int64_t i_count;
int64_t i_size = stream_Size( p_demux->s );
if( p_sys->i_data_end > 0 && i_size > p_sys->i_data_end )
{
i_size = p_sys->i_data_end;
}
/* real number of packets */
i_count = ( i_size - p_sys->i_data_begin ) /
p_sys->p_fp->i_min_data_packet_size;
/* calculate the time duration in micro-s */
p_sys->i_length = (mtime_t)p_sys->p_fp->i_play_duration / 10 *
(mtime_t)i_count /
(mtime_t)p_sys->p_fp->i_data_packets_count;
if( p_sys->i_length > 0 )
{
p_sys->i_bitrate = 8 * i_size * (int64_t)1000000 / p_sys->i_length;
}
}
/* Create meta informations */
p_sys->meta = vlc_meta_New();
if( ( p_cd = ASF_FindObject( p_sys->p_root->p_hdr,
&asf_object_content_description_guid, 0 ) ) )
{
if( p_cd->psz_title && *p_cd->psz_title )
{
vlc_meta_Add( p_sys->meta, VLC_META_TITLE, p_cd->psz_title );
}
if( p_cd->psz_author && *p_cd->psz_author )
{
vlc_meta_Add( p_sys->meta, VLC_META_AUTHOR, p_cd->psz_author );
}
if( p_cd->psz_copyright && *p_cd->psz_copyright )
{
vlc_meta_Add( p_sys->meta, VLC_META_COPYRIGHT, p_cd->psz_copyright );
}
if( p_cd->psz_description && *p_cd->psz_description )
{
vlc_meta_Add( p_sys->meta, VLC_META_DESCRIPTION, p_cd->psz_description );
}
if( p_cd->psz_rating && *p_cd->psz_rating )
{
vlc_meta_Add( p_sys->meta, VLC_META_RATING, p_cd->psz_rating );
}
}
for( i_stream = 0, i = 0; i < 128; i++ )
{
asf_object_codec_list_t *p_cl = ASF_FindObject( p_sys->p_root->p_hdr,
&asf_object_codec_list_guid, 0 );
if( p_sys->track[i] )
{
vlc_meta_t *tk = vlc_meta_New();
TAB_APPEND( p_sys->meta->i_track, p_sys->meta->track, tk );
if( p_cl && i_stream < p_cl->i_codec_entries_count )
{
if( p_cl->codec[i_stream].psz_name &&
*p_cl->codec[i_stream].psz_name )
{
vlc_meta_Add( tk, VLC_META_CODEC_NAME,
p_cl->codec[i_stream].psz_name );
}
if( p_cl->codec[i_stream].psz_description &&
*p_cl->codec[i_stream].psz_description )
{
vlc_meta_Add( tk, VLC_META_CODEC_DESCRIPTION,
p_cl->codec[i_stream].psz_description );
}
}
i_stream++;
}
}
return VLC_SUCCESS; return VLC_SUCCESS;
error:
ASF_FreeObjectRoot( p_demux->s, p_sys->p_root );
free( p_sys );
return VLC_EGENERIC;
} }
...@@ -347,6 +138,7 @@ static int Demux( demux_t *p_demux ) ...@@ -347,6 +138,7 @@ static int Demux( demux_t *p_demux )
for( ;; ) for( ;; )
{ {
uint8_t *p_peek;
mtime_t i_length; mtime_t i_length;
mtime_t i_time_begin = GetMoviePTS( p_sys ); mtime_t i_time_begin = GetMoviePTS( p_sys );
int i_result; int i_result;
...@@ -356,6 +148,29 @@ static int Demux( demux_t *p_demux ) ...@@ -356,6 +148,29 @@ static int Demux( demux_t *p_demux )
break; break;
} }
/* Check if we have concatenated files */
if( stream_Peek( p_demux->s, &p_peek, 16 ) == 16 )
{
guid_t guid;
ASF_GetGUID( &guid, p_peek );
if( ASF_CmpGUID( &guid, &asf_object_header_guid ) )
{
msg_Warn( p_demux, "Found a new ASF header" );
/* We end this stream */
DemuxEnd( p_demux );
/* And we prepare to read the next one */
if( DemuxInit( p_demux ) )
{
msg_Err( p_demux, "failed to load the new header" );
return 0;
}
continue;
}
}
/* Read and demux a packet */
if( ( i_result = DemuxPacket( p_demux ) ) <= 0 ) if( ( i_result = DemuxPacket( p_demux ) ) <= 0 )
{ {
return i_result; return i_result;
...@@ -374,6 +189,7 @@ static int Demux( demux_t *p_demux ) ...@@ -374,6 +189,7 @@ static int Demux( demux_t *p_demux )
} }
} }
/* Set the PCR */
p_sys->i_time = GetMoviePTS( p_sys ); p_sys->i_time = GetMoviePTS( p_sys );
if( p_sys->i_time >= 0 ) if( p_sys->i_time >= 0 )
{ {
...@@ -389,28 +205,10 @@ static int Demux( demux_t *p_demux ) ...@@ -389,28 +205,10 @@ static int Demux( demux_t *p_demux )
static void Close( vlc_object_t * p_this ) static void Close( vlc_object_t * p_this )
{ {
demux_t *p_demux = (demux_t *)p_this; demux_t *p_demux = (demux_t *)p_this;
demux_sys_t *p_sys = p_demux->p_sys;
int i;
msg_Dbg( p_demux, "freeing all memory" ); DemuxEnd( p_demux );
vlc_meta_Delete( p_sys->meta ); free( p_demux->p_sys );
ASF_FreeObjectRoot( p_demux->s, p_sys->p_root );
for( i = 0; i < 128; i++ )
{
asf_track_t *tk = p_sys->track[i];
if( tk )
{
if( tk->p_frame )
{
block_ChainRelease( tk->p_frame );
}
free( tk );
}
}
free( p_sys );
} }
/***************************************************************************** /*****************************************************************************
...@@ -777,4 +575,276 @@ loop_error_recovery: ...@@ -777,4 +575,276 @@ loop_error_recovery:
return 1; return 1;
} }
/*****************************************************************************
*
*****************************************************************************/
static int DemuxInit( demux_t *p_demux )
{
demux_sys_t *p_sys = p_demux->p_sys;
vlc_bool_t b_seekable;
int i;
unsigned int i_stream;
asf_object_content_description_t *p_cd;
/* init context */
p_sys->i_time = -1;
p_sys->i_length = 0;
p_sys->i_bitrate = 0;
p_sys->p_root = NULL;
p_sys->p_fp = NULL;
p_sys->i_track = 0;
for( i = 0; i < 128; i++ )
{
p_sys->track[i] = NULL;
}
p_sys->i_data_begin = -1;
p_sys->i_data_end = -1;
p_sys->meta = NULL;
/* Now load all object ( except raw data ) */
stream_Control( p_demux->s, STREAM_CAN_FASTSEEK, &b_seekable );
if( (p_sys->p_root = ASF_ReadObjectRoot( p_demux->s, b_seekable )) == NULL )
{
msg_Warn( p_demux, "ASF plugin discarded (not a valid file)" );
return VLC_EGENERIC;
}
p_sys->p_fp = p_sys->p_root->p_fp;
if( p_sys->p_fp->i_min_data_packet_size != p_sys->p_fp->i_max_data_packet_size )
{
msg_Warn( p_demux, "ASF plugin discarded (invalid file_properties object)" );
goto error;
}
p_sys->i_track = ASF_CountObject( p_sys->p_root->p_hdr,
&asf_object_stream_properties_guid );
if( p_sys->i_track <= 0 )
{
msg_Warn( p_demux, "ASF plugin discarded (cannot find any stream!)" );
goto error;
}
msg_Dbg( p_demux, "found %d streams", p_sys->i_track );
for( i_stream = 0; i_stream < p_sys->i_track; i_stream ++ )
{
asf_track_t *tk;
asf_object_stream_properties_t *p_sp;
p_sp = ASF_FindObject( p_sys->p_root->p_hdr,
&asf_object_stream_properties_guid,
i_stream );
tk = p_sys->track[p_sp->i_stream_number] = malloc( sizeof( asf_track_t ) );
memset( tk, 0, sizeof( asf_track_t ) );
tk->i_time = -1;
tk->p_sp = p_sp;
tk->p_es = NULL;
tk->p_frame = NULL;
if( ASF_CmpGUID( &p_sp->i_stream_type, &asf_object_stream_type_audio ) &&
p_sp->i_type_specific_data_length >= sizeof( WAVEFORMATEX ) - 2 )
{
es_format_t fmt;
uint8_t *p_data = p_sp->p_type_specific_data;
es_format_Init( &fmt, AUDIO_ES, 0 );
wf_tag_to_fourcc( GetWLE( &p_data[0] ), &fmt.i_codec, NULL );
fmt.audio.i_channels = GetWLE( &p_data[2] );
fmt.audio.i_rate = GetDWLE( &p_data[4] );
fmt.i_bitrate = GetDWLE( &p_data[8] ) * 8;
fmt.audio.i_blockalign = GetWLE( &p_data[12] );
fmt.audio.i_bitspersample = GetWLE( &p_data[14] );
if( p_sp->i_type_specific_data_length > sizeof( WAVEFORMATEX ) )
{
fmt.i_extra = __MIN( GetWLE( &p_data[16] ),
p_sp->i_type_specific_data_length - sizeof( WAVEFORMATEX ) );
fmt.p_extra = malloc( fmt.i_extra );
memcpy( fmt.p_extra, &p_data[sizeof( WAVEFORMATEX )], fmt.i_extra );
}
tk->i_cat = AUDIO_ES;
tk->p_es = es_out_Add( p_demux->out, &fmt );
msg_Dbg( p_demux, "added new audio stream(codec:0x%x,ID:%d)",
GetWLE( p_data ), p_sp->i_stream_number );
}
else if( ASF_CmpGUID( &p_sp->i_stream_type, &asf_object_stream_type_video ) &&
p_sp->i_type_specific_data_length >= 11 + sizeof( BITMAPINFOHEADER ) )
{
es_format_t fmt;
uint8_t *p_data = &p_sp->p_type_specific_data[11];
es_format_Init( &fmt, VIDEO_ES,
VLC_FOURCC( p_data[16], p_data[17], p_data[18], p_data[19] ) );
fmt.video.i_width = GetDWLE( p_data + 4 );
fmt.video.i_height= GetDWLE( p_data + 8 );
if( p_sp->i_type_specific_data_length > 11 + sizeof( BITMAPINFOHEADER ) )
{
fmt.i_extra = __MIN( GetDWLE( p_data ),
p_sp->i_type_specific_data_length - 11 - sizeof( BITMAPINFOHEADER ) );
fmt.p_extra = malloc( fmt.i_extra );
memcpy( fmt.p_extra, &p_data[sizeof( BITMAPINFOHEADER )], fmt.i_extra );
}
tk->i_cat = VIDEO_ES;
tk->p_es = es_out_Add( p_demux->out, &fmt );
msg_Dbg( p_demux, "added new video stream(ID:%d)",
p_sp->i_stream_number );
}
else
{
tk->i_cat = UNKNOWN_ES;
msg_Dbg( p_demux, "ignoring unknown stream(ID:%d)",
p_sp->i_stream_number );
}
}
p_sys->i_data_begin = p_sys->p_root->p_data->i_object_pos + 50;
if( p_sys->p_root->p_data->i_object_size != 0 )
{ /* local file */
p_sys->i_data_end = p_sys->p_root->p_data->i_object_pos +
p_sys->p_root->p_data->i_object_size;
}
else
{ /* live/broacast */
p_sys->i_data_end = -1;
}
/* go to first packet */
stream_Seek( p_demux->s, p_sys->i_data_begin );
/* try to calculate movie time */
if( p_sys->p_fp->i_data_packets_count > 0 )
{
int64_t i_count;
int64_t i_size = stream_Size( p_demux->s );
if( p_sys->i_data_end > 0 && i_size > p_sys->i_data_end )
{
i_size = p_sys->i_data_end;
}
/* real number of packets */
i_count = ( i_size - p_sys->i_data_begin ) /
p_sys->p_fp->i_min_data_packet_size;
/* calculate the time duration in micro-s */
p_sys->i_length = (mtime_t)p_sys->p_fp->i_play_duration / 10 *
(mtime_t)i_count /
(mtime_t)p_sys->p_fp->i_data_packets_count;
if( p_sys->i_length > 0 )
{
p_sys->i_bitrate = 8 * i_size * (int64_t)1000000 / p_sys->i_length;
}
}
/* Create meta informations */
p_sys->meta = vlc_meta_New();
if( ( p_cd = ASF_FindObject( p_sys->p_root->p_hdr,
&asf_object_content_description_guid, 0 ) ) )
{
if( p_cd->psz_title && *p_cd->psz_title )
{
vlc_meta_Add( p_sys->meta, VLC_META_TITLE, p_cd->psz_title );
}
if( p_cd->psz_author && *p_cd->psz_author )
{
vlc_meta_Add( p_sys->meta, VLC_META_AUTHOR, p_cd->psz_author );
}
if( p_cd->psz_copyright && *p_cd->psz_copyright )
{
vlc_meta_Add( p_sys->meta, VLC_META_COPYRIGHT, p_cd->psz_copyright );
}
if( p_cd->psz_description && *p_cd->psz_description )
{
vlc_meta_Add( p_sys->meta, VLC_META_DESCRIPTION, p_cd->psz_description );
}
if( p_cd->psz_rating && *p_cd->psz_rating )
{
vlc_meta_Add( p_sys->meta, VLC_META_RATING, p_cd->psz_rating );
}
}
for( i_stream = 0, i = 0; i < 128; i++ )
{
asf_object_codec_list_t *p_cl = ASF_FindObject( p_sys->p_root->p_hdr,
&asf_object_codec_list_guid, 0 );
if( p_sys->track[i] )
{
vlc_meta_t *tk = vlc_meta_New();
TAB_APPEND( p_sys->meta->i_track, p_sys->meta->track, tk );
if( p_cl && i_stream < p_cl->i_codec_entries_count )
{
if( p_cl->codec[i_stream].psz_name &&
*p_cl->codec[i_stream].psz_name )
{
vlc_meta_Add( tk, VLC_META_CODEC_NAME,
p_cl->codec[i_stream].psz_name );
}
if( p_cl->codec[i_stream].psz_description &&
*p_cl->codec[i_stream].psz_description )
{
vlc_meta_Add( tk, VLC_META_CODEC_DESCRIPTION,
p_cl->codec[i_stream].psz_description );
}
}
i_stream++;
}
}
es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
return VLC_SUCCESS;
error:
ASF_FreeObjectRoot( p_demux->s, p_sys->p_root );
return VLC_EGENERIC;
}
/*****************************************************************************
*
*****************************************************************************/
static void DemuxEnd( demux_t *p_demux )
{
demux_sys_t *p_sys = p_demux->p_sys;
int i;
if( p_sys->p_root )
{
ASF_FreeObjectRoot( p_demux->s, p_sys->p_root );
p_sys->p_root = NULL;
}
if( p_sys->meta )
{
vlc_meta_Delete( p_sys->meta );
p_sys->meta = NULL;
}
for( i = 0; i < 128; i++ )
{
asf_track_t *tk = p_sys->track[i];
if( tk )
{
if( tk->p_frame )
{
block_ChainRelease( tk->p_frame );
}
if( tk->p_es )
{
es_out_Del( p_demux->out, tk->p_es );
}
free( tk );
}
p_sys->track[i] = 0;
}
}
modules/demux/asf/libasf.c
View file @ adcebbae
...@@ -2,7 +2,7 @@ ...@@ -2,7 +2,7 @@
* libasf.c : * libasf.c :
***************************************************************************** *****************************************************************************
* Copyright (C) 2001-2003 VideoLAN * Copyright (C) 2001-2003 VideoLAN
* $Id: libasf.c,v 1.19 2004/01/25 20:05:28 hartman Exp $ * $Id$
* Authors: Laurent Aimar <fenrir@via.ecp.fr> * Authors: Laurent Aimar <fenrir@via.ecp.fr>
* *
* This program is free software; you can redistribute it and/or modify * This program is free software; you can redistribute it and/or modify
...@@ -111,7 +111,7 @@ static int ASF_NextObject( stream_t *s, asf_object_t *p_obj ) ...@@ -111,7 +111,7 @@ static int ASF_NextObject( stream_t *s, asf_object_t *p_obj )
if( p_obj->common.i_object_size <= 0 ) if( p_obj->common.i_object_size <= 0 )
{ {
return( VLC_EGENERIC ); return VLC_EGENERIC;
} }
if( p_obj->common.p_father && p_obj->common.p_father->common.i_object_size != 0 ) if( p_obj->common.p_father && p_obj->common.p_father->common.i_object_size != 0 )
{ {
...@@ -119,7 +119,7 @@ static int ASF_NextObject( stream_t *s, asf_object_t *p_obj ) ...@@ -119,7 +119,7 @@ static int ASF_NextObject( stream_t *s, asf_object_t *p_obj )
p_obj->common.i_object_pos + p_obj->common.i_object_size + 24 ) p_obj->common.i_object_pos + p_obj->common.i_object_size + 24 )
/* 24 is min size of an object */ /* 24 is min size of an object */
{ {
return( VLC_EGENERIC ); return VLC_EGENERIC;
} }
} }
...@@ -720,8 +720,8 @@ asf_object_root_t *ASF_ReadObjectRoot( stream_t *s, int b_seekable ) ...@@ -720,8 +720,8 @@ asf_object_root_t *ASF_ReadObjectRoot( stream_t *s, int b_seekable )
p_root->i_type = ASF_OBJECT_TYPE_ROOT; p_root->i_type = ASF_OBJECT_TYPE_ROOT;
memcpy( &p_root->i_object_id, &asf_object_null_guid, sizeof( guid_t ) ); memcpy( &p_root->i_object_id, &asf_object_null_guid, sizeof( guid_t ) );
p_root->i_object_pos = 0; p_root->i_object_pos = stream_Tell( s );
p_root->i_object_size = stream_Tell( s ); p_root->i_object_size = 0;
p_root->p_first = NULL; p_root->p_first = NULL;
p_root->p_last = NULL; p_root->p_last = NULL;
p_root->p_next = NULL; p_root->p_next = NULL;
......
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