int File::read_frame(VFrame *frame, int is_thread)
{
const int debug = 0;
-
+//printf("File::read_frame pos=%jd cache=%d 1frame=%d\n",
+// current_frame, use_cache, asset->single_frame);
if( debug ) PRINT_TRACE
//printf("File::read_frame %d\n", __LINE__);