x264 Encoding 1080i

I am attempting to encode the following 1080i source with x264: Code:

The output is a stuttering mess on what?

Playing back on PC using MPC-HC with Lav and MadVR. I have used the exact same approach for other 1080i content which is playing back with no issues.

Is it possible that source has wrong field order?

I can imagine something like 25p packed in interlaced fields with 2:2 pulldown. Last time I was in doubts for my camera I just opened source in avsp and wrote a simple avisynth script with AssumeTFF() and SeparateFields(), then gone through few frames.

Maybe it's a source decoding problem? Did you try a different (AviSynth) source filter, like e.g. DGDecNV and looked at the preview?

I had similar experiences:

@technomorph Can you upload a sample of the source of few seconds duration?

Thanks for you help guys. I should say that my knowledge of video compression is limited. I have no experience of using AviSynth or After Effects. I've uploaded a 10 second cut which I demuxed using tsMuxer: The metadata from MediaInfo appears different from the complete source file, so hopefully the act of taking a cut has not changed anything. Code:

That's a mangled source. It's mostly top field first, but every fourth field is out of order. Then, the Machu Picchu scene is entirely progressive, with every other frame duplicated. I'm not sure how you're going to fix it.