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[Bug 758725] Re: My video clip raw AVI flashes white and black

 

i had the same issue with some 3gp vids (from my phone) i converted using ffmpeg.
since i wanted to work in HD (10801p 50fps) i figured it would be best to convert all my 3pg files to 50fps and mpeg2 video (and also change the audio sampling freq to 48kHz)

i first converted the files using this : 
ffmpeg -i input_file.3gp -vcodec mpeg2video -f avi -r 50 -b 10000k -acodec mp2 -ar 48000 output_file.mov

the result played well with ffplay, but seemed to be sped up when
playing it with melt

the sollution was to change the format from avi > mpeg :
ffmpeg -i input_file.3gp -vcodec mpeg2video -f mpeg -r 50 -b 10000k -acodec mp2 -ar 48000 output_file.mov
the output of this played well on both ffplay and melt

in other words : this is not a openshot bug, but melt or ffmpeg 
(using melt 0.7.2  and ffmpeg 4:0.6.2)

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https://bugs.launchpad.net/bugs/758725

Title:
  My video clip raw AVI flashes white and black

Status in OpenShot Video Editor:
  New

Bug description:
  1) Ubuntu 10.10
  2) PPA
  3) 1.3.0

  Description:
    1) Yes, this video plays fine and seeks correctly using ffplay.
    2) No, it does not work in melt. It still flashes white and black and sometimes desynchronized.
    3) Here are the details from ffmpeg about my video:
    Input #0, avi, from 'depth_cam_1.dat depth real data.avi':
    Duration: 00:00:24.06, start: 0.000000, bitrate: 84674 kb/s
      Stream #0.0: Video: rawvideo, bgr24, 560x420, 15 tbr, 15 tbn, 15 tbc
    4) Yes, I have attached a small video which always flashes white using melt.