[FFmpeg-devel] [PATCH 1/3] lavc/mjpegdec: add function ff_mjpeg_decode_header

[Li, Zhong]

> From: Li, Zhong
> Sent: Thursday, June 27, 2019 8:59 PM
> To: ffmpeg-devel at ffmpeg.org
> Cc: Li, Zhong <zhong.li at intel.com>
> Subject: [PATCH 1/3] lavc/mjpegdec: add function ff_mjpeg_decode_header
> 
> It will be reused in the following mjpeg_parser patch
> 
> Signed-off-by: Zhong Li <zhong.li at intel.com>
> ---
> Mark Thompson: This seems suspicious - MJPEG is generally 4:2:2 (e.g. UVC
> requires it), so I would expect a 4:2:2 format to be the default here?  (Or
> maybe a longer list - VAAPI certainly supports 4:2:2, 4:2:0 and 4:4:4 on the
> same hardware.)
> Zhong: libmfx can support jpeg baseline profile with more output formats,
> but current ffmpeg-qsv decoder/vpp can't. Will extend supported format list
> as separated patch.

Sorry, this annotation should be part of patch 3/3. Please ignore here.