Hi Hans, On Monday, 1 October 2018 14:54:29 EEST Hans Verkuil wrote: > On 10/01/2018 01:48 PM, Laurent Pinchart wrote: > > On Monday, 1 October 2018 11:43:04 EEST Hans Verkuil wrote: > >> It turns out that we have both JPEG and Motion-JPEG pixel formats > >> defined. > >> > >> Furthermore, some drivers support one, some the other and some both. > >> > >> These pixelformats both mean the same. > > > > Do they ? I thought MJPEG was JPEG using fixed Huffman tables that were > > not included in the JPEG headers. > > I'm not aware of any difference. If there is one, then it is certainly not > documented. What I can tell for sure is that many UVC devices don't include Huffman tables in their JPEG headers. > Ezequiel, since you've been working with this recently, do you know anything > about this? -- Regards, Laurent Pinchart