On Thu, Feb 11, 2021 at 10:19:01PM +0000, Mark Thompson wrote: > On 11/02/2021 21:48, Lluís Batlle i Rossel wrote: > > From: Lluís Batlle i Rossell <vi...@viric.name> > > > > From: Cosmin Gorgovan <cos...@linux-geek.org> > > > > --- > > configure | 1 + > > libavcodec/allcodecs.c | 1 + > > libavcodec/mmaldec.c | 4 ++++ > > 3 files changed, 6 insertions(+) > > This seems reasonable. But, what does it do with non-4:2:0 JPEGs? Does it > fail; convert them to 4:2:0 (like downsampling 4:2:2); have a different > non-yuv420p output format?
It works fine here in the Pi: ffprobe says for a file I created: Stream #0:0: Video: mjpeg (Baseline), yuvj422p(pc, bt470bg/unknown/unknown), 640x480, 30 fps, 30 tbr, 1k tbn, 1k tbc (default) And I can decode it fine with mjpeg_mmal. I tried to do the same with "-hwaccel vaapi" in intel, and the mjpeg decoder failed for me. $ ffmpeg -hwaccel vaapi -i mjpeg422.mkv -y -f null - .... [AVHWFramesContext @ 0x192ec40] Failed to read image from surface 0x4000005: 20 (the requested function is not implemented). while the command above works with the regular yuvj420p mjpeg input. -- (Escriu-me xifrat si saps PGP / Write ciphered if you know PGP) PGP key 7CBD1DA5 - https://emailselfdefense.fsf.org/ _______________________________________________ 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".
