Hi, On Fri, 11. Dec 00:03, Ram Shaffir wrote: > Hello, > > I'm using RPI4 running RaspiOS 64bit: > Linux Dev64b 5.4.79-v8+ #1373 SMP PREEMPT Mon Nov 23 13:32:41 GMT 2020 > aarch64 GNU/Linux > > I compiled FFmpeg ver 4.3 from this git: > git clone --depth 1 --branch release/4.3 https://github.com/FFmpeg/FFmpeg.git > > (I realized after the build that I used the '--enable-nonfree' as I was > following a walkthrough tutorial and copy/paste some of the configuration > params; I'm planning on rebuilding it without '--enable-nonfree')
> > my goal is to capture a video stream from a webcam to a file; however, I > can't find the right parameters to have the video output played in "dumb" > video players; most of the players show a black image or the first frame; I > tried to add the following parameters but got the same result: Does it work in ffplay? For debugging you may want to simplify the problem. Try to encode another video with h264_v4lm2m. Does a software encoder work with v4l2 input? > > I searched for the error: " Failed to set gop size: Invalid argument " when > using the h264_v4l2m2m encoder but didn't find anything I can use to fix it; > I would be very grateful if you could help me with this issue. > This means that the parameter is not supported on the hardware encoder. Nothing to be concerned about. -- Andriy _______________________________________________ ffmpeg-user mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
