Get the tile index of the tile at coordinates x and y in the tiled image of x_tiles by
y_tiles.
Use this method when mode is of type gst_video_tile_type_indexed.
| mode |
a TileMode |
| x |
x coordinate |
| y |
y coordinate |
| x_tiles |
number of horizintal tiles |
| y_tiles |
number of vertical tiles |
|
the index of the tile at |