[FFmpeg-trac] #5078(undetermined:new): FFMPEG "loop=0" value results in warnings and extremely long runtime
FFmpeg
trac at avcodec.org
Wed Dec 9 23:23:46 CET 2015
#5078: FFMPEG "loop=0" value results in warnings and extremely long runtime
-------------------------------------+-------------------------------------
Reporter: eric | Owner:
Type: defect | Status: new
Priority: normal | Component:
Version: git-master | undetermined
Keywords: | Resolution:
Blocking: | Blocked By:
Analyzed by developer: 0 | Reproduced by developer: 0
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Comment (by eric):
Replying to [comment:5 cehoyos]:
> Please provide input files and command lines including complete, uncut
console output with default verbosity for current FFmpeg.
Due to the file size limits, I wasn't able to provide the original
sources, but I was able to reproduce the issue using a 1 second audio.mp3
and a 3 second video.mp4. They've been attached to the ticket. Since the
video is 3 seconds, the resulting output (which still takes multiple
minutes to generate) has the video from video.mp4 and the audio from
audio.mp3 looped 3 times.
I included the log file (ffmpeg-20151209-125328.log​) generated running
this command-line but I did need to trim 90K lines from the middle in
order to meet the file upload size restriction.
{{{
% ffmpeg -report -i video.mp4 -f lavfi -i
"amovie=filename=audio.mp3:loop=0" -map 0:v -map 1:a -shortest -c:v copy
output.mp4
}}}
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Ticket URL: <https://trac.ffmpeg.org/ticket/5078#comment:6>
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