int pass = mlt_properties_get_int( properties, "pass" );
int thread_count = mlt_properties_get_int( properties, "threads" );
if ( thread_count == 0 && getenv( "MLT_AVFORMAT_THREADS" ) )
thread_count = atoi( getenv( "MLT_AVFORMAT_THREADS" ) );
int pass = mlt_properties_get_int( properties, "pass" );
int thread_count = mlt_properties_get_int( properties, "threads" );
if ( thread_count == 0 && getenv( "MLT_AVFORMAT_THREADS" ) )
thread_count = atoi( getenv( "MLT_AVFORMAT_THREADS" ) );