[FFmpeg-trac] #5719(ffmpeg:new): Using -stream_loop is wrong duration output

FFmpeg trac at avcodec.org
Sun Jul 24 15:34:51 EEST 2016

#5719: Using -stream_loop is wrong duration output
             Reporter:  nicol       |                    Owner:
                 Type:  defect      |                   Status:  new
             Priority:  normal      |                Component:  ffmpeg
              Version:  git-master  |               Resolution:
             Keywords:              |               Blocked By:
             Blocking:              |  Reproduced by developer:  0
Analyzed by developer:  0           |

Comment (by nicol):

 Replying to [comment:4 cehoyos]:
 >> Yes, sample video is 25 frames, 1 second. Then use `-stream_loop 1`,
 >> output video is 50 frames(with movie), 2 seconds.
 > This is the intended behaviour, no?
 Yes, this is the intended behaviour(1 + 1*1 = 2 seconds).

 Replying to [comment:5 mulvya]:
 > I just noticed, the jump is related to the video framerate. If the rate
 > X fps, the timestamps jump is X seconds at the joints.
 I confirmed. This is right. 1+1*1+60(fps) = 62 seconds
 ffmpeg -f lavfi -i testsrc2=d=1:r=60 -f lavfi -i
 anullsrc=r=48000:cl=stereo -shortest -vcodec libx264 -acodec aac
 sample60.mkv -y`
 ffmpeg.exe -v 9 -loglevel 99 -stream_loop 1 -i sample60.mkv -c copy
 sample-c-copy60.mp4 -y
 frame=  120 fps=0.0 q=-1.0 Lsize=     106kB time=00:01:02.02

Ticket URL: <https://trac.ffmpeg.org/ticket/5719#comment:6>
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