First seconds of wmv video freeze

[Christian Andresen]

Added some wmv clips (720x480, 24frames, Microsoft Windows Media 8) to the project and timeline.
In both (project and timeline) in every clip the video freezes for the first seconds, audio is ok.
Also in the rendered file, every single clip was frozen at the beginning.
The wmv clips played correctly when watched outside openshot e.g. with totem or vlc.

Ubuntu 10.10
PPA
OpenShot 1.3.0

[Andy Finch (fincha)]

Please follow the instructions here:

https://answers.launchpad.net/openshot/+faq/983

[Christian Andresen (christianandresen)]

Followed the instructions:
1. ffplay plays it correct
2. melt plays it correct
3. details see below
4. file see attachment

Seems stream 1 codec frame rate differs from container frame rate: 1000.00 (1000/1) -> 30.00 (30/1)
Input #0, asf, from 'P1000066.wmv':
  Duration: 00:00:11.53, start: 3.100000, bitrate: 6250 kb/s
    Stream #0.0: Audio: wmav2, 44100 Hz, 2 channels, s16, 128 kb/s
    Stream #0.1: Video: wmv2, yuv420p, 720x480, 30 tbr, 1k tbn, 1k tbc

[Christian Andresen (christianandresen)]

I think the "start" is the problem, that's exactly the time the video freezes at the beginning.
Strange - I don't know where this comes from, video was just converted on a Mac from mov to wmv...

[Jonathan Thomas (jonoomph)]

Yes, I see the same thing as you. I would recommend as a work-around, you convert your .wmv files to some other codec / format, such as mp4. The following command will convert a folder full of wmv's into mp4s which work fine in OpenShot.

Just change the name of the folder to match your computer and video files:
find '/home/jonathan/Desktop/Videos' -iname "*.wmv" -exec ffmpeg -i {} -acodec ac3 -ab 128k -ac 2 -r 60 -vcodec mpeg4 -f mp4 -y -sameq {}.mp4 \;

[Andy Finch (fincha)]

I see that melt does not play this file correctly, it shows the same freeze in the first few seconds. ffplay plays it ok. You can log a bug with the MLT project if you can verify that it still does not play correctly with their latest trunk.

But we will not be able to fix this in OpenShot.