[FFmpeg-user] FFMPEG ignores -timelimit
Martin Yao
yaofahua at qq.com
Thu Jul 22 10:31:18 EEST 2021
And cpu time will be smaller when you use "-c copy" than not.
--------------------------------------------------------------
hw at LAPTOP-EBDLMFEM:~/work/tmp$ time ffmpeg -hide_banner -timelimit 2 -re
-i in.mp4 -y out.mp4
...
Killed 93 fps= 23 q=28.0 size= 0kB time=00:00:03.97 bitrate=
0.1kbits/s speed=0.988x
real 0m4.542s
user 0m2.997s
sys 0m0.081s
hw at LAPTOP-EBDLMFEM:~/work/tmp$ time ffmpeg -hide_banner -timelimit 2 -re
-i in.mp4 -y -c copy out.mp4
...
real 0m11.468s
user 0m0.060s
sys 0m0.037s
--------------------------------------------------------------
On 7/21/2021 3:32 AM, Carl Zwanzig wrote:
> On 7/20/2021 12:23 PM, S. Helbig via ffmpeg-user wrote:
>> ffmpeg -loglevel debug -hide_banner -timelimit 60 -i
>> 'http://192.168.1.23:456/videostream.cgi?user=USER&pwd=PWD' -y -f
>> segment -segment_time 3600 -segment_format mp4 -segment_atclocktime 1
>> -segment_wrap 3 -c copy /path/to/destination/recording-%03d.mp4
>
> -timelimit duration (global)
> Exit after ffmpeg has been running for duration seconds in CPU user time.
>
> (not clock time)
>
> You probably want -t ("When used as an input option (before -i), limit
> the duration of data read from the input file.)
>
> Not needed with this one, but always post the complete output w/o
> -hide_banner (check the list FAQ for more info).
>
> Later,
>
> z!
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yaofahua at qq.com
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