Re: [FFmpeg-user] ffmpeg chromakey with v4l2 loopback device

2019-01-13 Thread Carl Eugen Hoyos
2019-01-13 4:38 GMT+01:00, Steven Varga : > when running the following ffmpeg chain I can't set the output > psudo device (/dev/video1) format. What am I doing wrong? Command line including complete, uncut console output missing / add -pix_fmt yuv420p Carl Eugen

[FFmpeg-user] ffmpeg chromakey with v4l2 loopback device

2019-01-12 Thread Steven Varga
Hello, when running the following ffmpeg chain I can't set the output psudo device (/dev/video1) format. What am I doing wrong? best steven error message: [v4l2 @ 0x55e5418ddee0] Unknown V4L2 pixel format equivalent for yuva420p Could not write header for output file #0 (incorrect codec