On Mon, May 17, 2021 at 09:19:46 +0200, Bouke wrote: > > You will have to show/look at the console output of both commands. > > (It's there for a reason, and most likely says what the issue is.) > > I know, but there was ’nothing’ on stdErr / stdOut.
Then you're capturing your output incorrectly. > It turns out that FFmpeg crashes, nothing wrong with the command line. > QProcess sees an error, and either QProcess terminates FFmpeg (I don’t think > so) or FFmpeg crashes by itself. If QProcess terminates it unconditionally, there's nothing we can do(?). If ffmpeg crashes, that's bad. You would have to convince your system to create a core dump, and would have to look at a backtrace. (Or run ffmpeg within gdb.) > in Python: > cmd = "bash" > args = ["-c", "/Applications/ffmpeg -loglevel trace -report -f avfoundation > -i :0 /Volumes/Data/test.mov"] Do you need to run it in bash? Can you not set cmd to "ffmpeg" and properly pass the arguments? Regards, Moritz _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".