[FFmpeg-user] ffmpeg cannot capture h264 from webcam C920

[andrea]

On 31/08/13 21:08, William C Bonner wrote:
> I finally figured out that to use FFMPEG directly with the logitech C920
> camera doing h.264 encoding, I need to use the -copyinkf flag.
> 
> ffmpeg -report -s 1920x1080 f v4l2 -vcodec h264 -i /dev/video0 -copyinkf
> -vcodec copy test.mp4
> 

bingo!

it works now.
there are tons of warnings

[mp4 @ 0x181bff0] Non-monotonous DTS in output stream 0:0; previous: 11474308, current: 11431709;
changing to 11474309. This may result in incorrect timestamps in the output file.

Non-monotonous DTS in output stream 0:0; previous: 11972804, current: 11802063; changing to
11972805. This may result in incorrect timestamps in the output file.


need to find the right way to silence them

thank you very much.