Extra data passed to a "gst-copy" transform GstMetaTransformFunction.
gboolean region;
TRUE if only region is copied
gsize offset;
the offset to copy, 0 if region is FALSE, otherwise > 0
gsize size;
the size to copy, -1 or the buffer size when region is FALSE
Extra data passed to a "gst-copy" transform GstMetaTransformFunction. gboolean region; TRUE if only region is copied gsize offset; the offset to copy, 0 if region is FALSE, otherwise > 0 gsize size; the size to copy, -1 or the buffer size when region is FALSE