+// priv->consecutive_dropped, priv->consecutive_rendered, priv->process_head );
+
+ // Check for too many consecutively dropped frames
+ if ( priv->consecutive_dropped > mlt_properties_get_int( properties, "drop_max" ) )
+ {
+ int orig_buffer = mlt_properties_get_int( properties, "buffer" );
+ int prefill = mlt_properties_get_int( properties, "prefill" );
+ mlt_log_verbose( self, "too many frames dropped - " );
+
+ // If using a default low-latency buffer level (SDL) and below the limit
+ if ( ( orig_buffer == 1 || prefill == 1 ) && buffer < (threads + 1) * 10 )
+ {
+ // Auto-scale the buffer to compensate
+ mlt_log_verbose( self, "increasing buffer to %d\n", buffer + threads );
+ mlt_properties_set_int( properties, "_buffer", buffer + threads );
+ priv->consecutive_dropped = fps / 2;
+ }
+ else
+ {
+ // Tell the consumer to render it
+ mlt_log_verbose( self, "forcing next frame\n" );
+ mlt_properties_set_int( MLT_FRAME_PROPERTIES( frame ), "rendered", 1 );
+ priv->consecutive_dropped = 0;
+ }
+ }
+ }
+ if ( priv->is_purge ) {
+ priv->is_purge = 0;
+ mlt_frame_close( frame );
+ frame = NULL;