On 12/16/2014 11:07 AM, Peter Rabbitson wrote: > On 12/15/2014 06:49 PM, Carl Eugen Hoyos wrote: >> Peter Rabbitson <rabbit+list <at> rabbit.us> writes: >> >>> ffmpeg -r 30 -f v4l2 -s 1920x1080 -vcodec h264 >> >> I believe -r 30 does not do what you think it does >> and it may be the reason for the issues you see. >> Is there a problem if you remove it? >> >>> -i /dev/v4l/by-id/*HD_Pro_Webcam_C920* \ >>> -c:v copy -f matroska -
I've used Logitech C920 and noticed that the camera drops it's frame rate without signaling it. So what happened was that I was seeing stuttering in high resolutions and only when I dropped the camera resolution to 640x480 I was able to get steady input fps. The lowering of frame rate occurred when the camera lens do not receive enough light. You are may be seeing similar problem. -- Georgi Chorbadzhiyski | http://georgi.unixsol.org/ | http://github.com/gfto/ _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user
