[FFmpeg-user] How to properly record sound when capturing web cam?
Carl Eugen Hoyos
ceffmpeg at gmail.com
Tue May 1 19:14:15 EEST 2018
2018-05-01 18:04 GMT+02:00, Jean Louis <ffmpeg at rcdrun.com>:
> [video4linux2,v4l2 @ 0x2590a40] Detected monotonic timestamps, converting
> Input #0, video4linux2,v4l2, from '/dev/video0':
> Duration: N/A, start: 1525190574.860860
> Input #1, alsa, from 'default':
> Duration: N/A, start: 1525190574.924269
This is correct now, as said it could not work before.
(If it did work for some encoders, this indicates a
> [alsa @ 0x2592fc0] Thread message queue blocking;
> consider raising the thread_queue_size option (current value: 100)
> [video4linux2,v4l2 @ 0x2590a40] Thread message queue blocking;
> consider raising the thread_queue_size option (current value: 8)
You should try to fix this.
Are you sure your system is fast enough for vp9 realtime
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