[FFmpeg-trac] #4994(undetermined:new): Wrong video format (distorted) after converting

FFmpeg trac at avcodec.org
Sat Nov 7 09:25:42 CET 2015


#4994: Wrong video format (distorted) after converting
-------------------------------------+-------------------------------------
             Reporter:  marsz82      |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:
  undetermined                       |  unspecified
             Keywords:  distorted,   |               Blocked By:
  wrong format, converted format     |  Reproduced by developer:  0
             Blocking:               |
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 Summary of the bug: Videos are converting to mp4 files. There are 4
 presets with different video resolutions.
 Generally it's working.
 But some videos get's distorted in few resolutions.
 For example: http://gravity-magazine.de/de/videos/dirt-jumpstreet-
 produzierte-videos-crashes-kurze-clips/3763
 Watching this movie in 240p, 480p is still okay.
 But when you switch to 720p or 1080p it's totally distorted.

 I think, it only happens when the source video has a smaller resolution
 then the preset.

 Video codec: H.264 / AVC / MPEG-4AVC / MPEG-4 part 10 (encoders: libx264
 libx264rgb)
 Aspect mode: Preserve aspect ratio (default)
 Upscale: checked

 How to reproduce:
 {{{
 % ffmpeg -i input ... output
 ffmpeg version 2015-04-08-a0854c0
 built on ...
 }}}
 Patches should be submitted to the ffmpeg-devel mailing list and not this
 bug tracker.

--
Ticket URL: <https://trac.ffmpeg.org/ticket/4994>
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