> Am 17.12.2020 um 00:47 schrieb Geoff Sweet <[email protected]>: > > ffmpeg -y -f alsa -ac 2 -i front:CARD=Capture,DEV=0 -f video4linux2 -i > /dev/video0 out.mpeg
Unrelated: „mpeg“ output will not make you happy. > But that command kinda falls on its face. I get the audio, but no video: > > ffmpeg -y -f alsa -ac 2 -i front:CARD=Capture,DEV=0 -f video4linux2 -i > /dev/video0 out.mpeg > ffmpeg version n4.3.1 Copyright (c) 2000-2020 the FFmpeg developers Please remember to test current FFmpeg git head before posting here. [...] > Input #0, alsa, from 'front:CARD=Capture,DEV=0': > Duration: N/A, start: 1608093176.894565, bitrate: 1536 kb/s > Stream #0:0: Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s > [video4linux2,v4l2 @ 0x56248fe0ab80] Dequeued v4l2 buffer contains corrupted > data (0 bytes). > Input #1, video4linux2,v4l2, from '/dev/video0': > Duration: N/A, start: 0.000000, bitrate: 995328 kb/s The start times do not match, this makes recording very difficult because there will likely be A/V desync. Try the v4l2 input option -ts abs See: https://ffmpeg.org/ffmpeg-devices.html#Options-18 Carl Eugen _______________________________________________ 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".
