Deinterlacing outputs small file only

[Selur]

Sorry, could you write in English again?

Sure, no problem. Sorry, had a phone call in German and somehow switched to German.

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To sum the above up:
a. Problem, is a bug in the ffmpeg call when H.264 is muxed into a .avi container. (I think I can fix that, but I would not recommend to use .avi for H.264)
b. I would recommend to use .mkv as container if you want to keep the audio in its original format or convert the audio to aac and use .mp4 as container.

=> will look into the FFmpeg command line to allow muxing H264 into .avi (even if it's not really what I would recommend)

Cu Selur