On Fri, Jan 8, 2016 at 5:57 PM, Carl Eugen Hoyos <ceho...@ag.or.at> wrote: > Ran Shalit <ranshalit <at> gmail.com> writes: > >> But It seems that the captured video is always the same: 422 YUYV. > > Did you try to record with FFmpeg? > > $ ffmpeg -i /dev/video0 -vcodec copy -t 10 out1.yuv > > $ ffmpeg -pix_fmt yuv420p -i /dev/video0 -t 10 out2.yuv > > The console output will tell you the used colour space, > I suspect that not every v4l2 hardware supports yuv420p. > > Carl Eugen >
Thank you very much, You're Right. The ffmpeg tool also showd that the format is 422 YUYV. This v4l2 device (virtual device, vivid ) always output 422 YUYV, although trying to change its format . Probably it can't output this format. Best Regards, Ran _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
