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Originally Posted by huhn
feel free to step through each frame IVTC isn't needed for this file.
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That all depends on if the decoder honors the soft pulldown flag or not and then what it does after that (deinterlace / pass as interlaced / etc).
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the output is already 23p the "only" issue is that madVR isn't switching to 23p and stays at 60 hz because source filter says it is 29p.
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Again, it depends on what the decoder does. The various HW decoders all do slightly different things. For example, the Quicksync HW decoder will output that clip as progressive 29.97Hz video without a repeated frame and madVR will only find a 2:2 pattern. avcodec (software decoding) seems to be needed for proper handling of this and many other DVDs as well as HD 1080i MPEG-2 content.
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don't get me wrong madVR IVTC shouldn't fail in this case but this file is not a typical DVD.
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From what I've seen it is a typical NTSC DVD. Most DVDs I've tested behave the same way, and I'm not talking about anime or small studio releases of non-theatrical content, but major studio releases of recent theatrical motion pictures. A few will indicate to the processing chain that they are interlaced, but not many.
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i guess the muxer did something to it but this is just a guess.
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The .m2v extracted straight from the DVD does the same thing, as does playing the DVD. Putting it in a .mkv container didn't change the playback behavior of the MPEG-2 content at all.