[FFmpeg-trac] #5454(undetermined:new): problem concatenating videos
FFmpeg
trac at avcodec.org
Fri Apr 22 14:44:59 CEST 2016
#5454: problem concatenating videos
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Reporter: edotom | Owner:
Type: defect | Status: new
Priority: normal | Component:
Version: unspecified | undetermined
Keywords: | Resolution:
Blocking: | Blocked By:
Analyzed by developer: 0 | Reproduced by developer: 0
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Comment (by edotom):
Hi
I uploaded a series of files that can be downloaded here:
https://www.dropbox.com/l/yTirqhC1pQ4tX2TFWmVeOp/invite
I uploaded also a file named understanding the problem.txt
Here's the summary of the problem:
Hi
This is what I'm trying to accomplish:
I need to join a series of files (all mp4) into one file
(12279resultado.mp4)
The source files are of two types: Image files (jpg) and video files (mkv)
Every mkv was converted to mp4 using:
"path\ffmpeg.exe" -report -i "path2\input.mkv" -vcodec copy "output\.mp4"
Every jpg was converted to mp4 using:
"path\ffmpeg.exe" -report -i "path2\input.jpg" -r 1/7 -c:v libx264 -preset
slow -crf 21 -t 7 "path2\output.mp4"
The intention is to have a 7fps video from an image for 7 seconds.
In the end, all mp4 videos are joined using control.txt using:
"path\ffmpeg.exe" -report -f concat -i "path2\control.txt" -c copy
"12279resultado.mp4"
The problem... al fur* files are not correctly shown in 12279resultado.mp4
files.
In some cases they do not show all 7 seconds or when they are close to the
end of the list they do not show at all.
thanks for your help
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Ticket URL: <https://trac.ffmpeg.org/ticket/5454#comment:7>
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