On 17/09/15 14:51, MrNice wrote: > > > On 17/09/15 12:00, Carl Eugen Hoyos wrote: >> MrNice <wxcvbn2006 <at> iol.ie> writes: >> >>>> Does it also happen if you only record audio? >>> >>> Yes it happen with the command >>> ./ffmpeg >> >>> -f v4l2 -ts mono2abs -channel 1 -video_size 720x576 >>> -pix_fmt yuyv422 -thread_queue_size 512 -i /dev/video0 >> >> Does it also happen if you only provide audio >> input to FFmpeg? >> >> Carl Eugen >> >> > > No error in a 50 mn recording with command > ./ffmpeg -debug 1 -f pulse -ar 44100 -ac 2 -channel_layout stereo > -thread_queue_size 512 -itsoffset -0.20 -i > alsa_input.pci-0000_00_14.2.analog-stereo -vn -c:a pcm_s16le > /Store3/Test/t_`date +%Y%m%d_%H%M`.mkv >
More info after long tests. The error Application provided invalid, non monotonically increasing dts to muxer in stream 0: happens after at least 30 minutes recording. ie: Last time at 33:12 Few seconds before or after happens warning message Past duration 0.xxxx too large Following this link http://ffmpeg.org/pipermail/ffmpeg-user/2014-December/024695.html I tried with -af aresample=async=1 but still I get the error with 1 frame dropped. [matroska @ 0x25d9de0] Writing block at offset 9113825634, size 179818, pts 2026200, dts 2026200, duration 40, keyframe 0 [matroska @ 0x25d9de0] Writing block at offset 9114005460, size 176978, pts 2026240, dts 2026240, duration 40, keyframe 0 Past duration 0.602318 too large *** dropping frame 50652 from stream 0 at ts 50650 [matroska @ 0x25d9de0] Starting new cluster at offset 9114182446 bytes, pts 2026280dts 2026280 [matroska @ 0x25d9de0] Writing block at offset 9114182463, size 180336, pts 2026280, dts 2026280, duration 40, keyframe 1 Past duration 0.601341 too large What more to do? As the errors are after 30 minutes, I could try to record by smaller parts. To be sure, I would like a way to stop recording if an error occurs. I tried -xerror but it's not working with this error. Any idea how to do? _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user