Using trial-and-error, it seems that the warnings disappear when I set ![]() Thread message queue blocking consider raising the thread_queue_size option (current value: 8) I found the problem described as a feature request here: Īlso, I had some trouble with a warning message before this error, which doesn't seem to be related and doesn't seem to affect the video recording, but I also wonder what it means: Thread message queue blocking consider raising the thread_queue_size option (current value: 8) I found almost zero information on the internet about this. dev/video0: Invalid data found when processing input ![]() ![]() The error message is something like: Dequeued v4l2 buffer contains 414720 bytes, but 829440 were expected. I am trying to record my old VHS tapes using a USB video capture device and the following command: ffmpeg -f alsa -ac 2 -i default -f v4l2 -standard pal -i /dev/video0 -c:v libx264 -qp 0 -preset fast -strict -2 zzz.mp4īut sometimes, unexpectedly during the recording, ffmpeg freezes the recording of video and remains on the last frame (audio continues to be recorded).
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