Deinterlacing BluRay on Linux

pcroland · 21st June 2015, 22:37

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

AviSynth is not available for Linux and I wasn't able to install the AvxSynth Linux fork on Debian

Debian 8.1
x264-r2538-121396c

microchip8 · 22nd June 2015, 13:25

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

stax76 · 22nd June 2015, 13:38

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

pcroland · 25th June 2015, 20:23

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

microchip8 · 25th June 2015, 21:41

Quote:

Originally Posted by pcroland

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

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 · 26th June 2015, 15:17

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

nevcairiel · 26th June 2015, 17:12

Quote:

Originally Posted by pcroland

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 · 26th June 2015, 18:42

What about something like this ?

Code:

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 :

Code:

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

pcroland · 29th June 2015, 16:48

Code:

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

That works

Thanks :-)

Ely · 2nd July 2015, 03:49

Cool !

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

Code:

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

sneaker_ger · 4th July 2015, 09:31

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

pcroland · 4th July 2015, 09:39

I recognized the mistake after the reply and I deleted it

Anyway, thanks for the quick answer :-)

21st June 2015, 22:37	#1 \| Link
pcroland Registered User Join Date: Mar 2014 Location: Hungary Posts: 108	Deinterlacing BluRay on Linux 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 AviSynth is not available for Linux and I wasn't able to install the AvxSynth Linux fork on Debian Debian 8.1 x264-r2538-121396c

22nd June 2015, 13:25	#2 \| Link
microchip8 ffx264/ffhevc author Join Date: May 2007 Location: Belgium Posts: 1,781	You don't need Avisynth for a simple deinterlace. Use ffmpeg for that, it has a few deinterlacers __________________ TV: Samsung 50" QE50Q60T AVR: Yamaha RX-V481 5.1 CD Player: Yamaha CD-S300 DAB+ Tuner: Yamaha T-D500 BD Player: Samsung UBD-M8500 UHD Speakers: Klipsch 5.1 Reference Phono: Audio-Technica AT-LP120XUSB

26th June 2015, 18:42	#8 \| Link
Ely Registered User Join Date: Dec 2014 Posts: 40	What about something like this ? Code: 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 : Code: ffmpeg -i input.m2ts -vf yadif=deint=interlaced -vcodec libx264 [..] Last edited by Ely; 26th June 2015 at 18:56. Reason: fixed x264 parameters

29th June 2015, 16:48	#9 \| Link
pcroland Registered User Join Date: Mar 2014 Location: Hungary Posts: 108	Code: ffmpeg -i input.m2ts -vf yadif=deint=interlaced -f rawvideo - \| x264 --input-res WxH --fps N -o out.mp4 - That works Thanks :-)

2nd July 2015, 03:49	#10 \| Link
Ely Registered User Join Date: Dec 2014 Posts: 40	Cool ! Btw, I complicated things by outputting rawvideo and setting the dimension/framerate in x264, but this will be even simpler : Code: ffmpeg -i input.m2ts -vf yadif=deint=interlaced -f yuv4mpegpipe - \| x264 --demuxer y4m -o out.mp4 -

22nd June 2015, 13:38	#3 \| Link
stax76 Registered User Join Date: Jun 2002 Location: On thin ice Posts: 6,800	If you want to use QTGMC you can also use VapourSynth.

25th June 2015, 20:23	#4 \| Link
pcroland Registered User Join Date: Mar 2014 Location: Hungary Posts: 108	I know that FFmpeg has some deinterlacers, but how should I use them with the native x264?

26th June 2015, 15:17	#6 \| Link
pcroland Registered User Join Date: Mar 2014 Location: Hungary Posts: 108	FFmpeg's x264 is a bit old and does not have as many options as the native :-(

4th July 2015, 09:31	#11 \| Link
sneaker_ger Registered User Join Date: Dec 2002 Posts: 5,565	Different fps result in different bitrates because x264's crf mode is frame-rate aware.

4th July 2015, 09:39	#12 \| Link
pcroland Registered User Join Date: Mar 2014 Location: Hungary Posts: 108	I recognized the mistake after the reply and I deleted it Anyway, thanks for the quick answer :-)

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode