deinterlacing

[encodingmonkey]

hi guys,

I've been using ffmpeg for a while to encode my videos to h264 in an mp4 container, but I've come across one video that has been giving me some problems. The source is interlaced, and I usually use yadif on this kind of stuff, but for this particular file, when I turn on yadif, it worsens the picture and gives me a bunch of bigger lines in the film. Is there any way to get around this problem?

[Case]

Please note that this forum is for the Mac OS X GUI app of ffmpegX.
You mentioning ffmpeg (without the X) and your use of yadif suggests that your post may not be about ffmpegX?

[encodingmonkey]

ah thought they were the same so sorry!

[sanlyn]

We need a sample of your unprocessed video.

Why are you deinterlacing?

[encodingmonkey]

So noyadif is the original source file, while yadif is the outcome of what happens after I run it through the yadif filter. You can see really big distortions in the yadif file. I'm deinterlacing to try and get rid of the combed lines.

[poisondeathray]

The reason is the source video has been improperly processed (it has been resized incorrectly before the mp4, and currently it's not true interlaced video, with intact fields)

You need to go back to the real source (before noyadif.mp4)