LAV Not deinterlacing a specfic MKV file even when forced.

[bergqvistjl]

Hi, i'm playing a specific MKV file, and for some reason LAV does not want to de-interlace it, even if I force de-interlacing to always occur.

Any ideas? I'm using WMP with Media foundation disabled.

[Selur]

wild guess: video is not interlaced, but progressive and someone messed up creating it by encoding an interlaced source as progressive,...
-> post detailed MediaInfo analysis (if you use a CLI version of Mediainfo: detailed = --FullHelp; if you use the GUI version of MediaInfo, set Debug to 10)

[jagabo]

Most likely it was resized and the two fields are no longer separate. Post a sample.

[bergqvistjl]

Well this is very odd. If I mux the video stream alone (no audio or subtitles), it de-interlaces it like it should do. yet If I then mux it (using the video-only MKV i'd just created) with audio and subtitles, it goes back to not de-interlacing it. :S

[bergqvistjl]

OK i've narrowed it down. If I mux the audio in, it plays fine and deinterlaces properly, yet the moment I mux the subtitles (PGS) onto it, it stops de-interlacing properly, it's wierd as i've had PGS subtitles in all my other M2TS to MKV movies and they've gone through OK. Still, i can live without subtitles for this one though.