Deinterlacing BluRay on Linux

[pcroland]

Hi! I usually just have to encode the BluRay videos from .m2ts files with x264 or extract .mkv's in case the videos are remuxes. But now the BD source is interlaced and I have no idea how to deinterlace it on Linux :mad: AviSynth is not available for Linux and I wasn't able to install the AvxSynth Linux fork on Debian :angry:

Debian 8.1
x264-r2538-121396c

[microchip8]

You don't need Avisynth for a simple deinterlace. Use ffmpeg for that, it has a few deinterlacers

[stax76]

If you want to use QTGMC you can also use VapourSynth.

[pcroland]

I know that FFmpeg has some deinterlacers, but how should I use them with the native x264? :D

[microchip8]

I know that FFmpeg has some deinterlacers, but how should I use them with the native x264? :D

Make your life easier and use ffmpeg for the whole process. It uses libx264 for encoding so there's no difference between using x264 directly or encoding through ffmpeg

[pcroland]

FFmpeg's x264 is a bit old and does not have as many options as the native :-(

[nevcairiel]

FFmpeg's x264 is a bit old and does not have as many options as the native :-(

How old x264 in ffmpeg is depends which version of x264 was used when building ffmpeg - and it then supports all the same options.

[Ely]

What about something like this ?

ffmpeg -i input.m2ts -vf yadif=deint=interlaced -f rawvideo - | x264 --input-res WxH --fps N -o out.mp4 -

Or, if you have libx264 built in ffmpeg :

ffmpeg -i input.m2ts -vf yadif=deint=interlaced -vcodec libx264 [..]

[pcroland]

ffmpeg -i input.m2ts -vf yadif=deint=interlaced -f rawvideo - | x264 --input-res WxH --fps N -o out.mp4 -
That works :D Thanks :-)

[Ely]

Cool !

Btw, I complicated things by outputting rawvideo and setting the dimension/framerate in x264, but this will be even simpler :

ffmpeg -i input.m2ts -vf yadif=deint=interlaced -f yuv4mpegpipe - | x264 --demuxer y4m -o out.mp4 -

[sneaker_ger]

Different fps result in different bitrates because x264's crf mode is frame-rate aware.

[pcroland]

I recognized the mistake after the reply and I deleted it :D Anyway, thanks for the quick answer :-)