On Tue, Jun 25, 2024 at 11:19 AM Anton Khirnov <an...@khirnov.net> wrote: > Quoting Ramiro Polla (2024-06-20 17:40:39) > > This commit adds support for V4L2's multiplanar API, but only when the > > number of planes is 1. > > > > Adding full support for the multiplanar API would require a device that > > actually uses more than 1 plane, which I have not found yet. > > Out of curiosity, what's the point of a multiplanar API when the plane > count is always one?
Good question, and I wish I knew the answer. Some SBCs are providing HDMI input through v4l2, and they decided to use the multiplanar API, even though the count is always one. I couldn't find many examples on how to use this API correctly, with a couple of implementations being buggy to a point where they will only work when the count is one. I wish I could find a device that uses the multiplanar API and actually provides more than one buffer so that I could properly test, but by looking at the kernel source code I couldn't find a device that I could easily obtain yet. _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
