ffmpeg时间戳校正到相同或+1

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1、校正到上一个时间戳

[flv @ 0000000004a72a60]

Non-monotonous DTS in output stream 0:0; previous: 38226576, current: 31954504;
changing to 38226576. This may result in incorrect timestamps in the output file.

[flv @ 0000000004a72a60]

Non-monotonous DTS in output stream 0:0; previous: 38226576, current: 31954543;

changing to 38226576. This may result in incorrect timestamps in the output file.

negative cts, previous timestamps might be wrong
DTS 4294905094, next:4418668000 st:0 invalid dropping
PTS 4294905094, next:4418668000 invalid dropping st:0
frame=110408 fps= 25 q=-1.0 size= 326675kB time=01:13:38.89 bitrate= 605.6kbits/s
frame=110526 fps= 25 q=-1.0 size= 327025kB time=01:13:43.61 bitrate= 605.6kbits/s
negative cts, previous timestamps might be wrong
[flv @ 0000000004a72a60]
Non-monotonous DTS in output stream 0:0; previous: 4423587, current: -52282;
changing to 4423587. This may result in incorrect timestamps in the output file.
[flv @ 000000000039f900]
negative cts, previous timestamps might be wrong
[flv @ 0000000004a72a60]
Non-monotonous DTS in output stream 0:0; previous: 4423587, current: -52202;
changing to 4423587. This may result in incorrect timestamps in the output file.

https://ffmpeg.zeranoe.com/forum/viewtopic.php?t=1172

2、校正到上一个时间戳+1

[mp4 @ 0x7f897a01bc00] Non-monotonous DTS in output stream 0:0; previous: 598061, current: 467644; changing to 598062. This may result in incorrect timestamps in the output file.[mp4 @ 0x7f897a01bc00] Non-monotonous DTS in output stream 0:0; previous: 598062, current: 468044; changing to 598063. This may result in incorrect timestamps in the output file.[mp4 @ 0x7f897a01bc00] Non-monotonous DTS in output stream 0:0; previous: 598063, current: 468444; changing to 598064. This may result in incorrect timestamps in the output file....[mp4 @ 0x7f897a01bc00] Non-monotonous DTS in output stream 0:0; previous: 598362, current: 588044; changing to 598363. This may result in incorrect timestamps in the output file.

http://video.stackexchange.com/questions/15468/non-monotonous-dts-on-concat-ffmpeg

ffmpeg -f v4l2 -video_size 1920x1080 -vcodec h264 -i /dev/video0 -c copy -fflags +genpts -video_track_timescale 15360 -avoid_negative_ts make_zero output.mp4

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