[libav-bugs] [Bug 820] New: When working with a large amount of files, certain FPS rates do not work

bugzilla at aruru.libav.org bugzilla at aruru.libav.org
Mon Feb 16 18:03:05 CET 2015


https://bugzilla.libav.org/show_bug.cgi?id=820

            Bug ID: 820
           Summary: When working with a large amount of files, certain FPS
                    rates do not work
           Product: Libav
           Version: git HEAD
          Hardware: IA64
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: ---
         Component: general
          Assignee: bugzilla at libav.org
          Reporter: f00dl3a at gmail.com

When working with a large amount of still frames converted to %05d named
formatting, forcing 6 FPS does not work - instead I have to go to 8 FPS to get
videos to actually work. The file is created to the appropriate size (i.e. 13
MBs in this case) - but the video stops playing after the 4th frame of the
movie. After using -r 8, the whole video plays as desired.

I would like to force 6 FPS instead of 8 because 8 FPS is almost too fast for
looping minutely webcam still shots.

avconv -r 6 -qscale4 -i /var/www/Get/WebCam/MP4/Temp/Processing/%05d.jpeg
/var/www/Get/WebCam/MP4/$(date -d "yesterday 12:00" +'%d%m%y').mp4

^ Converts, but the video "stops" after the 4th frame.

avconv -r 8 -qscale4 -i /var/www/Get/WebCam/MP4/Temp/Processing/%05d.jpeg
/var/www/Get/WebCam/MP4/$(date -d "yesterday 12:00" +'%d%m%y').mp4

^ Works as it should. The only difference is 8 FPS instead of 6 FPS.


Using whatever the current version is on the Ubuntu repositories. Ubuntu does
not allow me to use ffmpeg anymore.

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