[FFmpeg-devel] [PATCH] mjpegdec: Support 4x1, 2x1, 2x1 notation for 4:2:2 chroma subsampling

[Derek Buitenhuis]

Hi,

Sorry for the slow response; life is hectic.

On Tue, Jun 19, 2018 at 8:32 PM, Michael Niedermayer
<michael at niedermayer.cc> wrote:
> The absolute values define the bitstream and have to be used

OK, I was unaware.

> with a count of 4, mjpeg is coded in MCUs of 4 8x8 blocks in that direction
> all buffers must be sized accordingly so that these blocks fit in.
> I suspect that is already done but i could be wrong

Near as I can tell, it should already be handled OK?

I would also update the bit you mentioned, but, if I'm honest,
I am not 100% sure it and its subsequent bits of uncommented
bit fiddling do, or why.

- Derek