Encoding '12bit - 4:4:4' YUV in MBAFF

sabeelmk · 13th August 2010, 20:32

Hi

My question is related specifically with encoding a YUV in MBAFF.

I would like to know if "x264" encoder do the following

1. Can 'x264' Encode '12 Bit YUV,with 4:4:4 chromaformat' in MBAFF ?

2. Can 'x264' take raw YUV file directly as input,for encoding ?

I have tried JM17 encoder for the above requirement,and JM17 encoder has a bug in encoding in 12bit Yuv,with 4:4:4 chroma format in MBAFF mode (with Separate colour plane = 0 and 1 )

Is there any other encoder that do the above?

Thanks
sabeel

mp3dom · 13th August 2010, 20:46

1. I don't think so. If you need to encode it to bluray or 8bit 4:2:0, it's better to dither down your source (a step that you need anyway to do)
2. Yes, in YUV4MPEG (Y4M) file format.

sabeelmk · 13th August 2010, 20:51

Quote:

Originally Posted by mp3dom

1. I don't think so. If you need to encode it to bluray or 8bit 4:2:0, it's better to dither down your source (a step that you need anyway to do)
2. Yes, in YUV4MPEG (Y4M) file format.

mp3dom

appreciate ur response

But my requirement is strictly encoding the following

1. 12 Bit Yuv,of 4:4:4 chroma Format In MBAFF

additionally,The purpose of such a stream is for next generation products.

thanks

Sharktooth · 13th August 2010, 20:58

x264 supports only 4:2:0 colorspace (YV12).

mp3dom · 13th August 2010, 21:12

To encode in such specs, you need an Hi444PP profile encoder. I don't know actually any encoder capable of this (maybe some hardware-based encoder?).

simonhorlick · 14th August 2010, 00:17

Quote:

Originally Posted by sabeelmk

Hi

My question is related specifically with encoding a YUV in MBAFF.

I would like to know if "x264" encoder do the following

1. Can 'x264' Encode '12 Bit YUV,with 4:4:4 chromaformat' in MBAFF ?

High bit depth support is a summer of code project, so you can probably expect to see it very soon. As for 4:4:4 I don't believe x264 currently supports it. You could, of course ask on IRC and see if anyone is willing to write this.

Dark Shikari · 14th August 2010, 00:23

Quote:

Originally Posted by simonhorlick

High bit depth support is a summer of code project, so you can probably expect to see it very soon.

It's been in for weeks, actually.

sabeelmk · 14th August 2010, 09:38

Quote:

Originally Posted by simonhorlick

You could, of course ask on IRC and see if anyone is willing to write this.

Hi

Can u please elaborate what is "IRC" , where can i find it...

information of any other encoder that can do what the thread is about,is welcome

sabeel

J_Darnley · 14th August 2010, 11:03

Internet Relay Chat - http://en.wikipedia.org/wiki/IRC

mp3dom · 14th August 2010, 12:18

Quote:

Originally Posted by sabeelmk

Hi
information of any other encoder that can do what the thread is about,is welcome
sabeel

You can put a look at Cineform.

shon3i · 14th August 2010, 14:04

Quote:

Originally Posted by mp3dom

I don't know actually any encoder capable of this (maybe some hardware-based encoder?).

Mainconcept support 4:4:4 up to 14bits and MBAFF

mp3dom · 14th August 2010, 15:17

Really? Are you referring to 'Reference' or SDK?

shon3i · 14th August 2010, 15:21

Quote:

Originally Posted by mp3dom

Really? Are you referring to 'Reference' or SDK?

reference can only do a 10bit, sdk can go to 14bit, both can use 4:4:4

sabeelmk · 14th August 2010, 19:44

Hmm

Interesting

Shon3i,i think i have to check out the SDK of Mainconcept,and see wether the code does 12bit 4:4:4 encoding,only issue is i hope,the executable from the mainconcept sdk can take YUV input for encoding...

shon3i · 14th August 2010, 19:47

Quote:

Originally Posted by sabeelmk

only issue is i hope,the executable from the mainconcept sdk can take YUV input for encoding...

If not, you can use DirectShow Filter instead.

sabeelmk · 14th August 2010, 19:49

Quote:

Originally Posted by shon3i

If not, you can use DirectShow Filter instead.

shon3i,u mean using something like a graphedit to do that?

shon3i · 14th August 2010, 19:55

Quote:

Originally Posted by sabeelmk

shon3i,u mean using something like a graphedit to do that?

yep, or graphstudio.

sabeelmk · 14th August 2010, 19:59

Quote:

Originally Posted by shon3i

yep, or graphstudio.

Cool..but i am not sure we can plugin a Mainconcept SDK executable in graphedit..i am assuming that the sdk output would be just a normal executable(.exe)

shon3i · 14th August 2010, 20:26

no you can't use executable only direct show filter through graphedit/studio.SDK usualy came as directshow filter, but executable is also available

sabeelmk · 15th August 2010, 15:17

@shon3i and All

Guys
i checked the mainconcept sdk site,i found out that mainconcept sdk doesnt support 12bit, i dont think i found anywhere on that site that mainconcept sdk has support for 444 and 12 bit

i dont know if it is right to post links,but for reference here is the link giving description of mainconcept sdk
http://www.mainconcept.com/products/...o/h264avc.html

looks like only JM 17 encoder does MBAFF encoding of 12bit,444 yuvs,but with bugs :-) ..

13th August 2010, 20:32	#1 \| Link
sabeelmk Video DSP Join Date: Jan 2008 Location: India Posts: 34	Encoding '12bit - 4:4:4' YUV in MBAFF Hi My question is related specifically with encoding a YUV in MBAFF. I would like to know if "x264" encoder do the following 1. Can 'x264' Encode '12 Bit YUV,with 4:4:4 chromaformat' in MBAFF ? 2. Can 'x264' take raw YUV file directly as input,for encoding ? I have tried JM17 encoder for the above requirement,and JM17 encoder has a bug in encoding in 12bit Yuv,with 4:4:4 chroma format in MBAFF mode (with Separate colour plane = 0 and 1 ) Is there any other encoder that do the above? Thanks sabeel Last edited by sabeelmk; 13th August 2010 at 20:35.

13th August 2010, 20:58	#4 \| Link
Sharktooth Mr. Sandman Join Date: Sep 2003 Location: Haddonfield, IL Posts: 11,768	x264 supports only 4:2:0 colorspace (YV12). __________________ MPEG-4 ASP Custom Matrices: EQM V1(old), EQM AutoGK Sharpmatrix (aka EQM V2), EQM V3HR (updated 01/10/2004), EQM V3LR, EQM V3ULR (updated 04/02/2005), EQM V3UHR (updated 17/12/2004) and EQM V3EHR (updated 05/10/2004) Info about my ASP matrices. MPEG-4 AVC Custom Matrices: EQM AVC-HR Info about my AVC matrices My x264 builds. Mooo!!!

14th August 2010, 11:03	#9 \| Link
J_Darnley Registered User Join Date: May 2006 Posts: 957	Internet Relay Chat - http://en.wikipedia.org/wiki/IRC __________________ x264 log explained \|\| x264 deblocking how-to preset -> tune -> user set options -> fast first pass -> profile -> level Doom10 - Of course it's better, it's one more.

15th August 2010, 15:17	#20 \| Link
sabeelmk Video DSP Join Date: Jan 2008 Location: India Posts: 34	@shon3i and All Guys i checked the mainconcept sdk site,i found out that mainconcept sdk doesnt support 12bit, i dont think i found anywhere on that site that mainconcept sdk has support for 444 and 12 bit i dont know if it is right to post links,but for reference here is the link giving description of mainconcept sdk http://www.mainconcept.com/products/...o/h264avc.html looks like only JM 17 encoder does MBAFF encoding of 12bit,444 yuvs,but with bugs :-) .. Last edited by sabeelmk; 15th August 2010 at 15:20.

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

13th August 2010, 20:46	#2 \| Link
mp3dom Registered User Join Date: Jul 2003 Location: Italy Posts: 1,135	1. I don't think so. If you need to encode it to bluray or 8bit 4:2:0, it's better to dither down your source (a step that you need anyway to do) 2. Yes, in YUV4MPEG (Y4M) file format.

13th August 2010, 21:12	#5 \| Link
mp3dom Registered User Join Date: Jul 2003 Location: Italy Posts: 1,135	To encode in such specs, you need an Hi444PP profile encoder. I don't know actually any encoder capable of this (maybe some hardware-based encoder?).

14th August 2010, 15:17	#12 \| Link
mp3dom Registered User Join Date: Jul 2003 Location: Italy Posts: 1,135	Really? Are you referring to 'Reference' or SDK?

14th August 2010, 19:44	#14 \| Link
sabeelmk Video DSP Join Date: Jan 2008 Location: India Posts: 34	Hmm Interesting Shon3i,i think i have to check out the SDK of Mainconcept,and see wether the code does 12bit 4:4:4 encoding,only issue is i hope,the executable from the mainconcept sdk can take YUV input for encoding...

14th August 2010, 20:26	#19 \| Link
shon3i BluRay Maniac Join Date: Dec 2005 Posts: 2,419	no you can't use executable only direct show filter through graphedit/studio.SDK usualy came as directshow filter, but executable is also available