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Commit e4c2f343 authored by Laurent Aimar's avatar Laurent Aimar
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* sdp: parse 'a=' field.

parent 87369008
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Showing with 104 additions and 3 deletions
modules/demux/sdp.c
View file @ e4c2f343
......@@ -2,7 +2,7 @@
* sdp.c: SDP parser and builtin UDP/RTP/RTSP
*****************************************************************************
* Copyright (C) 2001 VideoLAN
* $Id: sdp.c,v 1.1 2003/08/03 15:25:33 fenrir Exp $
* $Id: sdp.c,v 1.2 2003/08/03 16:22:48 fenrir Exp $
*
* Authors: Laurent Aimar <fenrir@via.ecp.fr>
*
......@@ -40,6 +40,10 @@ static void Close( vlc_object_t * );
vlc_module_begin();
set_description( _("SDP demuxer + UDP/RTP/RTSP") );
set_capability( "demux", 100 );
add_category_hint( "Stream", NULL, VLC_FALSE );
add_integer( "sdp-session", 0, NULL,
"Session", "Session", VLC_TRUE );
set_callbacks( Open, Close );
add_shortcut( "sdp" );
vlc_module_end();
......@@ -50,6 +54,13 @@ vlc_module_end();
*****************************************************************************/
static int Demux ( input_thread_t * );
typedef struct
{
char *psz_name;
char *psz_value;
} sdp_attribute_t;
typedef struct
{
char *psz_media;
......@@ -58,6 +69,9 @@ typedef struct
char *psz_bandwith;
char *psz_key;
int i_attribute;
sdp_attribute_t *attribute;
} sdp_media_t;
typedef struct
......@@ -73,6 +87,9 @@ typedef struct
char *psz_key;
char *psz_timezone;
int i_attribute;
sdp_attribute_t *attribute;
int i_media;
sdp_media_t *media;
......@@ -89,6 +106,7 @@ struct demux_sys_t
{
stream_t *s;
int i_session;
sdp_t *p_sdp;
};
......@@ -109,6 +127,8 @@ static int Open( vlc_object_t * p_this )
int i_sdp_max;
char *psz_sdp;
vlc_value_t val;
/* See if it looks like a SDP
v, o, s fields are mandatory and in this order */
if( input_Peek( p_input, &p_peek, 7 ) < 7 )
......@@ -170,6 +190,18 @@ static int Open( vlc_object_t * p_this )
}
sdp_Dump( p_input, p_sys->p_sdp );
/* Get the selected session */
var_Create( p_input, "sdp-session", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
var_Get( p_input, "sdp-session", &val );
p_sys->i_session = val.i_int;
if( p_sys->i_session >= p_sys->p_sdp->i_session )
{
p_sys->i_session = 0;
}
/* Now create a handler for each media */
return VLC_SUCCESS;
error:
......@@ -297,6 +329,9 @@ static sdp_t *sdp_Parse ( char *psz_sdp )
p_session->psz_timezone = NULL;
p_session->i_media = -1;
p_session->media = NULL;
p_session->i_attribute = 0;
p_session->attribute = 0;
break;
case 'm':
fprintf( stderr, "New media added\n" );
......@@ -309,6 +344,8 @@ static sdp_t *sdp_Parse ( char *psz_sdp )
p_media->psz_connection = NULL;
p_media->psz_bandwith = NULL;
p_media->psz_key = NULL;
p_media->i_attribute = 0;
p_media->attribute = 0;
break;
case 'o':
p_session->psz_origin = strdup( psz );
......@@ -368,6 +405,42 @@ static sdp_t *sdp_Parse ( char *psz_sdp )
case 'z':
p_session->psz_timezone = strdup( psz );
break;
case 'a':
{
char *p = strchr( psz, ':' );
char *name = NULL;
char *value= NULL;
if( p )
{
*p++ = '\0';
value= strdup( p);
}
name = strdup( psz );
if( p_session->i_media != -1 )
{
p_media->attribute
= realloc( p_media->attribute,
( p_media->i_attribute + 1 ) *
sizeof( sdp_attribute_t ) );
p_media->attribute[p_media->i_attribute].psz_name = name;
p_media->attribute[p_media->i_attribute].psz_value = value;
p_media->i_attribute++;
}
else
{
p_session->psz_key = strdup( psz );
p_session->attribute
= realloc( p_session->attribute,
( p_session->i_attribute + 1 ) *
sizeof( sdp_attribute_t ) );
p_session->attribute[p_session->i_attribute].psz_name = name;
p_session->attribute[p_session->i_attribute].psz_value = value;
p_session->i_attribute++;
}
break;
}
default:
fprintf( stderr, "unhandled com=%c\n", com );
......@@ -390,7 +463,7 @@ static sdp_t *sdp_Parse ( char *psz_sdp )
static void sdp_Release( sdp_t *p_sdp )
{
#define FREE( p ) if( p ) { free( p ) ; (p) = NULL; }
int i, j;
int i, j, i_attr;
for( i = 0; i < p_sdp->i_session; i++ )
{
FREE( p_sdp->session[i].psz_origin );
......@@ -403,6 +476,12 @@ static void sdp_Release( sdp_t *p_sdp )
FREE( p_sdp->session[i].psz_bandwith );
FREE( p_sdp->session[i].psz_key );
FREE( p_sdp->session[i].psz_timezone );
for( i_attr = 0; i_attr < p_sdp->session[i].i_attribute; i_attr++ )
{
FREE( p_sdp->session[i].attribute[i].psz_name );
FREE( p_sdp->session[i].attribute[i].psz_value );
}
FREE( p_sdp->session[i].attribute );
for( j = 0; j < p_sdp->session[i].i_media; j++ )
{
......@@ -411,6 +490,12 @@ static void sdp_Release( sdp_t *p_sdp )
FREE( p_sdp->session[i].media[j].psz_connection );
FREE( p_sdp->session[i].media[j].psz_bandwith );
FREE( p_sdp->session[i].media[j].psz_key );
for( i_attr = 0; i_attr < p_sdp->session[i].i_attribute; i_attr++ )
{
FREE( p_sdp->session[i].media[j].attribute[i_attr].psz_name );
FREE( p_sdp->session[i].media[j].attribute[i_attr].psz_value );
}
FREE( p_sdp->session[i].media[j].attribute );
}
FREE( p_sdp->session[i].media);
}
......@@ -421,7 +506,7 @@ static void sdp_Release( sdp_t *p_sdp )
static void sdp_Dump ( input_thread_t *p_input, sdp_t *p_sdp )
{
int i, j;
int i, j, i_attr;
#define PRINTS( var, fmt ) \
if( var ) { msg_Dbg( p_input, " - " fmt " : %s", var ); }
#define PRINTM( var, fmt ) \
......@@ -440,6 +525,14 @@ static void sdp_Dump ( input_thread_t *p_input, sdp_t *p_sdp )
PRINTS( p_sdp->session[i].psz_bandwith, "Bandwith" );
PRINTS( p_sdp->session[i].psz_key, "Key" );
PRINTS( p_sdp->session[i].psz_timezone, "TimeZone" );
for( i_attr = 0; i_attr < p_sdp->session[i].i_attribute; i_attr++ )
{
msg_Dbg( p_input, " - attribute[%d] name:'%s' value:'%s'",
i_attr,
p_sdp->session[i].attribute[i_attr].psz_name,
p_sdp->session[i].attribute[i_attr].psz_value );
}
for( j = 0; j < p_sdp->session[i].i_media; j++ )
{
msg_Dbg( p_input, " - media[%d]", j );
......@@ -448,6 +541,14 @@ static void sdp_Dump ( input_thread_t *p_input, sdp_t *p_sdp )
PRINTM( p_sdp->session[i].media[j].psz_connection, "Connection" );
PRINTM( p_sdp->session[i].media[j].psz_bandwith, "Bandwith" );
PRINTM( p_sdp->session[i].media[j].psz_key, "Key" );
for( i_attr = 0; i_attr < p_sdp->session[i].media[j].i_attribute; i_attr++ )
{
msg_Dbg( p_input, " - attribute[%d] name:'%s' value:'%s'",
i_attr,
p_sdp->session[i].media[j].attribute[i_attr].psz_name,
p_sdp->session[i].media[j].attribute[i_attr].psz_value );
}
}
}
#undef PRINTS
......
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