static void *create_service( mlt_profile profile, mlt_service_type type, const char *id, void *arg )
{
avformat_init( );
#ifdef CODECS
if ( !strncmp( id, "avformat", 8 ) )
{
if ( type == producer_type )
return producer_avformat_init( profile, id, arg );
else if ( type == consumer_type )
return consumer_avformat_init( profile, arg );
}
#endif
#ifdef FILTERS
if ( !strcmp( id, "avcolor_space" ) )
return filter_avcolour_space_init( arg );
if ( !strcmp( id, "avcolour_space" ) )
return filter_avcolour_space_init( arg );
if ( !strcmp( id, "avdeinterlace" ) )
return filter_avdeinterlace_init( arg );
#if defined(FFUDIV) || (LIBAVCODEC_VERSION_INT < ((54<<16)+(26<<8)+0))
if ( !strcmp( id, "avresample" ) )
return filter_avresample_init( arg );
#endif
if ( !strcmp( id, "swscale" ) )
return filter_swscale_init( profile, arg );
#endif
return NULL;
}
static void *create_service( mlt_profile profile, mlt_service_type type, const char *id, void *arg )
{
avformat_init( );
#ifdef CODECS
if ( !strncmp( id, "avformat", 8 ) )
{
if ( type == producer_type )
return producer_avformat_init( profile, id, arg );
else if ( type == consumer_type )
return consumer_avformat_init( profile, arg );
}
#endif
#ifdef FILTERS
if ( !strcmp( id, "avcolor_space" ) )
return filter_avcolour_space_init( arg );
if ( !strcmp( id, "avcolour_space" ) )
return filter_avcolour_space_init( arg );
if ( !strcmp( id, "avdeinterlace" ) )
return filter_avdeinterlace_init( arg );
if ( !strcmp( id, "avresample" ) )
return filter_avresample_init( arg );
#ifdef SWSCALE
if ( !strcmp( id, "swscale" ) )
return filter_swscale_init( profile, arg );
#endif
#endif
return NULL;
}
static mlt_properties avformat_metadata( mlt_service_type type, const char *id, void *data )
{
char file[ PATH_MAX ];
const char *service_type = NULL;
mlt_properties result = NULL;
// Convert the service type to a string.
switch ( type )
{
case consumer_type:
service_type = "consumer";
break;
case filter_type:
service_type = "filter";
break;
case producer_type:
service_type = "producer";
break;
case transition_type:
service_type = "transition";
break;
default:
return NULL;
}
// Load the yaml file
snprintf( file, PATH_MAX, "%s/avformat/%s_%s.yml", mlt_environment( "MLT_DATA" ), service_type, id );
result = mlt_properties_parse_yaml( file );
if ( result && ( type == consumer_type || type == producer_type ) )
{
// Annotate the yaml properties with AVOptions.
mlt_properties params = (mlt_properties) mlt_properties_get_data( result, "parameters", NULL );
AVFormatContext *avformat = avformat_alloc_context();
#if LIBAVCODEC_VERSION_INT > ((53<<16)+(8<<8)+0)
AVCodecContext *avcodec = avcodec_alloc_context3( NULL );
#else
AVCodecContext *avcodec = avcodec_alloc_context();
#endif
int flags = ( type == consumer_type )? AV_OPT_FLAG_ENCODING_PARAM : AV_OPT_FLAG_DECODING_PARAM;
add_parameters( params, avformat, flags, NULL, NULL );
#if LIBAVFORMAT_VERSION_MAJOR >= 53
avformat_init();
if ( type == producer_type )
{
AVInputFormat *f = NULL;
while ( ( f = av_iformat_next( f ) ) )
if ( f->priv_class )
add_parameters( params, &f->priv_class, flags, NULL, f->name );
}
else
{
AVOutputFormat *f = NULL;
while ( ( f = av_oformat_next( f ) ) )
if ( f->priv_class )
add_parameters( params, &f->priv_class, flags, NULL, f->name );
}
#endif
add_parameters( params, avcodec, flags, NULL, NULL );
#if LIBAVCODEC_VERSION_MAJOR >= 53
AVCodec *c = NULL;
while ( ( c = av_codec_next( c ) ) )
if ( c->priv_class )
add_parameters( params, &c->priv_class, flags, NULL, c->name );
#endif
av_free( avformat );
av_free( avcodec );
}
return result;
}