How to determine if mpeg4 interlaced or progressive?

[alexVS]

So that is the question.
How to determine if mpeg4 (divx, xvid, h264) interlaced or progressive?
For mpeg2 there is DGIndex, but how to determine this in mpeg4 (AVI, MP4, MKV)

[Guest]

For mpeg2 there is DGIndex DGIndex won't tell you if the video content is actually interlaced. It will tell you only whether the MPEG stream was encoded as interlaced. Those two things are very different. You have to step through the fields and use your eyes for a definitive determination.

[bond]

what neuron2 said or

for asp: mpeg4vol
for avc: h264parse

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