My media player classic does not playback avchd files, nor does vlc and wmp. Any suggestions are much appreciated. Thanks in advance.

I am guessing you are lacking an h.264 playback codec. You should try downloading the free DiVX Player at:

http://www.divx.com/divx/windows/player/

It does not "Open" native AVCHD files immediately until you switch the Open dialog to "All Files". You can then navigate to a .mts file and it should play properly.

You will need a modern, fast computer to play AVCHD smoothly, at least a dual core, preferably a 4 core / quadcore.

Hope this helps,

Larry

Thank you, Larry, I will give it a try. Got me a new quadcore PC just yesterday.

Good luck Michael. You will not regret the quadcore. It's the only way I was eventually able to do really smooth AVCHD editing and playback.

One warning however..... the DiVX player is NOT the best player for AVCHD, and smears a bit during motion. The only player I have been entirely happy with comes with Nero 8 Ultimate called Nero Show Time. It opens and plays both .mts files and AVCHD disks with menus beautifully.

Viele Grusse,

Larry

Hi evereybody and a big thanks to this community for helping in choosing right camcorder/software.

I have a SR11E and a quad core machine with 8600GTS. With Media Player Classic and CoreAVC, every core is at 30%. With PowerDVD, CPU use is very low, about 2%!
And quality is definitely better at PowerDVD. You should try these two before you decide the aquisition... for me PowerDVD is a must with AVCHD camcorders.

I also use PowerDVD and it does play .mts files very well, very much the same as Nero Show Time. The difference is that Nero Show Time allows finished AVCHD disks and their menus to be played just like using a BluRay player, whereas PowerDVD only will play .mts stream files but will not play most menued AVCHD disks. It does play a few from certain authoring programs but it will not recognize or open most of the ones I create.

Larry

I also use PowerDVD and it does play .mts files very well, very much the same as Nero Show Time.Unless there's a setting I've missed or some registry edit, PowerDVD won't play .mts files without first renaming them .m2ts. Pixela Image Mixer 3SE (comes with HF10/100) does the renaming automatically when importing .mts files from the Canons.

I also use PowerDVD and it does play .mts files very well, very much the same as Nero Show Time. The difference is that Nero Show Time allows finished AVCHD disks and their menus to be played just like using a BluRay player, whereas PowerDVD only will play .mts stream files but will not play most menued AVCHD disks. It does play a few from certain authoring programs but it will not recognize or open most of the ones I create.

Larry
This is interesting... I'm able to get PowerDVD to play all the AVCHD disks I've created with Pinnacle Studio 12. It'll play disks that my Samsung 1400 and friend's PS3 wont.

This is interesting... I'm able to get PowerDVD to play all the AVCHD disks I've created with Pinnacle Studio 12. It'll play disks that my Samsung 1400 and friend's PS3 wont.

I have purchased and used most of the current PC programs which can author AVCHD disks, and my experience has been that Nero Show Time will open and play all of them, whereas PowerDVD will only open and play those made with Pinnacle 12 Ultimate, Cyberlink PowerDirector 7 Plus, and Ulead Movie Factory 6 Plus. It will not play Nero Vision AVCHD disks, Sony Vegas disks (even though they lack menus) and will sometimes not play Ulead VideoStudio 11.5 disks.

I should mention that my version of PowerDVD is supplied by Dell with their BluRay burner-equipped XPS Extreme systems and is NOT the standard flavor software. Instead it is designated as "PowerDVD DX" and quite possibly has fewer features than the full retail BD version.

I open .mts files by right-clicking the file and doing an "Open With..." PowerDVD in my version does not explictly have an "Open File" dialog.

Larry

You don't need a powerful computer at all to play AVCHD if you have a video card that supports H.264 (Full)
Almost all new video cards have it but you better check it before buying since some of them only supports H.264 (Half). You can find very cheap ones for about $100.
Radeon HD4850/4870 are exellent if you need it for games too and it's pretty much the best you can get today and they're not too expensive.
PowerDVD does the job good since it supports the H.264 video card but any software works good with an Intel Core 2 Duo or better since they are fast enough.

If you don't have a very fast computer with no H.264 support Core AVC is the fastest.
As a reference, my old AMD64 3500+ (2200Mhz) plays x.264 1080P fine but it's just a little too slow when it comes to AVCHD@1080 however it plays it pretty good anyway.

If you have the codec that will make you play AVCHD you can get "Media Player Classic - Home Cinema" for free. http://sourceforge.net/project/showfiles.php?group_id=170561
No need to install this light player and interlaced videos will look fine.

Well, I'l have to go back from my initial enthusiasm with PowerDVD. After updating Nvidia driver I found that playing with HW acceleration goes with judder and tearing. Disabling HW acceleration goes to very smooth playback, but it needs more CPU power...
I don't know if it's Nvidia fault or PowerDVD...

At the end, MPC Home Cinema has an internal AVCHD codec and it's free...

The playback should be smooth but Ive heard other people with the same problem.
Why don't you go back to the old drivers since they work.
MPC-HC has DXVA support for nVidia series 8(9)xxx and ATI Radeon HD.

I can't play AVCHD without CoreAVC installed. I haven't really looked at the settings but it doesn't play by default. I also need the Dolby Digital 2 codec for the Hf10/100 clips Ive downloaded.

guys,

what about mac ? I have a Macbook pro core duo 2.16 ghz, 2gb ram and 256mb atı radeon 1600.

my friend have Casıo F1 and I could't play its 1080i clips. they are coded with h.264 but file extensions are .mov

vlc player closed suddenly if I try to play them.

I also tried to import to FCP but after few seconds FCP also shut down suddenly.

So is there any way to play and adit these F1 files on my mac ?

thanks,
alkım.

Chippe, I upgraded Nvidia drivers in hope I will get better performance, because with old drivers I had problems playing some HF100clips with WH acceleration, but not with SR11.
A HTPC it's a total jungle with drivers/codecs, now I can't play AVCHD with MPC (CoreAVC or not), only with PDVD...
Of course I don't have codec packs (it's the worst thing to do on a HTPC), but I remember some time ago I have to uninstall PDVD to have good playback in MPC (even I don't select Cyberlink codec in MPC, somehow it interferes). I will try without PDVD... without HW acceleration it's useless.

BTW, how do you set your PC, to deinterlace (inverse telecine) or not?

Alkim,
Your friend should know what you need.


Mircea,
Install the Hali media splitter that comes with CoreAVC.
Try this in MPC: Options/External Filters/Add filter button and look for CoreAVC
Check Prefer and click OK.

Set you PC..?
All I know is that VLC and MPC can play interlaced videos in a proper way.

Chippe,

I would like to know more about AVCHD playback without the need for high performsnce CPUs. The use of a videocard to do smooth playback sounds like a great way to avoid an expensive computer upgrade.

Have you tried running any video editing software with your Radeon card? Can any rendering be done or is it strictly for fast playback? Can you quickly scrub the timeline as normally required in editing, or only move through the file at playback speed only?

Is the output correctable in hue, saturation, sharpness, contrast, brightness, as it would be for making editing changes using the video card, only for playback or to a new corrected output file?

How much will a good card cost which supports AVCHD like the ATI you use?

Thanks for any info you can provide.

Larry

Chippe, of course I had Haali spliter and CoreAVC set as you sayed. I just discover my problem: in CoreAVC filter I had Deinterlacing option set to Hardware. I just set to Weave, this is the only option that works for me, the other freeze MPC.
I asked you about your settings in CoreAVC or driver regarding deinterlacing. I could deinterlace video in PC (and sending progressive signal to my TV) or let the TV do the deinterlacing (my TV has a good deinterlacing). However with this new driver I can't set in Nvidia Control Panel 1080i/50, just 1080p/50 (it works with old driver)...

Larry,

I use Nvidia 8800GT which I bought for gaming but these popular gaming video cards have support for x.264.
I haven't been editing in AVCHD since I haven't bought a HD camcorder yet. I did try Ulead and imported a clip from a HF100 and I think it was pretty slow in the timeline even on my Core2duo E8400, 3000Mhz overclocked to 3800Mhz.
Maybe someone else here have more experience?

Rendering = pure cpu power.
Ati or Nvidia doesn't really matter but when Premiere CS4 comes out the rumor says it might take advantage of nivdias Cuda video accerleration.

I think it's recommended to convert the avchd clips before editing just like on a Mac.
I don't like Ulead that much but it can make a low res. copy of your AVCHD clip which you edit and when rendering it will use your original AVCHD. It's great if you have a slow computer but it will take long time to render I guess.

One thing is for sure, you don't want a slow cpu and a fast video card but it works for x.264 playback.
Almost every video card today use PCI-E and you might use AGP (port)

What kind of cpu do you have?
If you don't know go to: control panel > system and check under the general tab.





Mircea,

Aha, now I understand..
Well I actually didn't touch MPC, it works great by default with the CoreAVC installed.
Im sorry I can't help you :-/

Thanks very much Chippe for your detailed reply. My questions were asked on behalf of people whom I have helped with AVCHD editing, on this and other forums and newsgroups. I went for a totally maxed out hardware platform for AVCHD since I do most of my editing in this format now, and found anything less than a quadcore to be painfully sluggish when editing. I am using an Intel Extreme QX9650 quadcore 3.0 GHz machine presently with extremely fast disks, front side bus, fastest multilane PCI Express, lots of RAM, and also have the 8800 GT card, so my personal needs are totally met. Many people somewhat naively buy AVCHD camcorders not knowing what they are getting themselves into on the editing and authoring end, and many can't even find an adequate playback method either for lack of hardware or a lack of software, more often hardware.

Thankfully the price of quadcore chips is dropping rapidly, and decent AVCHD machines are now becoming affordable. I am not a big fan of proxy editing, mostly because of the time it takes to make the intermediate files both when ingesting as well as modifying content, but I do very much prefer AVCHD to HDV when it comes to workflow and I now rarely use my HV20.

Any idea whether a cheap AGP card which uses the GPU for h.264 rendering is available from ATI or nVidia? I might want to upgrade one of my older HDV editing workstations with a new video card, to allow AVCHD playback, but have no PCI Express slots.

Thanks again for your excellent comments and answers Chippe,

Larry

Well, from what I search on many forums, there are NO GPU support yet for rendering. One site tested the Badaboom (which uses CUDA) and the results are awfull.
One of the developer of the x.264 sayed on a forum that the bill for GPU support in x.264 will be several mil USD, it's very tricky...

From what I see here (thank's Larry) best solution for simple editing is Nero Vision; it's nonsense to render a whole file if you just join multiple files.

Glad to help Mircea. Nero does a really good job with AVCHD.I wish they offered a complete non linear editing and AVCHD authoring suite with a lot of transitions, effects, better titles, etc. Their finished AVCHDs are the best I have ever made, even with the simple Nero Vision program. No transcoding, great animated menus, and beautiful looking video quality.

Larry

Larry,

You're welcome :-)
You're right, I would only use proxy editing if I had a slow computer but I've read that people are converting their clips to a lossless format but it means lot's of space on the HDD as you already know.

I'll try Nero someday. I tried Ulead again and the timeline wasn't that slow as I thought it was but it seems like the program doesn't like CoreAVC. I can't play the videos in a normal speed. It goes super fast for some reason.

Yes there are AGP video cards that you're asking for. I think the first ones that came out were the Radeon HD2400 and HD2600 but there are many more today.

I would choose a fanless model for a htpc. I don't know if you need it but here is a list with AGP, passive cooling cards.
It's great info/bestbuy site in swedish translated to english (some links doesnt work on the site translated)
Översatt version av http://www.prisjakt.nu/kategori.php?k=v432&o=prod_rank (http://translate.google.com/translate?u=http%3A%2F%2Fwww.prisjakt.nu%2Fkategori.php%3Fk%3Dv432%26o%3Dprod_rank&hl=sv&ie=UTF-8&sl=sv&tl=en)

For more AGP models, scroll up and click on "With DVI"
We're not talking big money here :-)

Thanks once again Chippe for excellent info. It looks like ATI would be the way to go for an AGP board for h.264. I know several people who don't want to make a major computer upgrade right away but would still like to be able to play HD content from AVCHD camcorders. This should be a good interim solution.

Thanks again,

Larry

Well, after a whole day testing, for me the best AVCHD player is Nero Shotime. Has hardware acceleration with no glitches like PowerDVD, it's image is far more fluid than MPC HC+CoreAVC and for now without artifacts/judder. Combine this with Smartredering in Vision (it works if you use the settings described here by Stan and Larry) and a very good burner, you have a solid package with a decent price.

Mircea,
so the timeline slider in Nero showtime is really smooth with no delay while dragging it?
Btw I don't see any artifacs/judder in MPC HC+CoreAVC.

Chippe,
No, I don't understand why DXVA2 (hardware acceleration) works only in Nero Showtime (player) and don't work in Nero Vision timeline slider (I check CPU utilisation and it use CPU a lot in slider). But joining clips with transitions (great 3d effects) it's very simple and effective and with greatest quality. Like Larry sayed, I will never understand software (like Vegas) which render files when it's not necessary.

About MPC+CoreAVC, it's not much judder, but some blur in panning (it gives me some motion sickness). For the first time I thought it was my fault (fast panning) but in Showtime image looks much better, at least on my PC. Last time I checked, it's deinterlacing problems (Coreavc works for me only with weave options). Maybe I will search another MPC build...

LE: if you asked about player slider (Showtime), it's silky smooth in dragging (no delay), but I have no big problems in MPC+Coreavc (just a little delay).

Ohh sorry I mixed showtime and vision but you gave me the right answers :-)
Thank you for explaining.

Mircea, Chippe, et al,

It's kinda' embarrasing to recommend Nero Showtime as a player and even more embarrasing to recommend Nero Vision as an NLE, since they are so very cheap and supposedly very limited, but I keep finding myself using them for AVCHD. Nothing else is as fast, produces identical output quality to the input quality with no rendering, and seems so free of bugs. I ocassionally will use Vegas, and did some FCP and iMovie editing on the last MacPro I had here, a dual Xeon 8 core, but the bottom line is the Nero just got it right this time. Their HDV support and HD DVD stuff was weak, but their BDMV / BluRay and AVCHD is totally smooth. I also have found CoreAVC does a really nice job as well.

Larry

By the way, ArcSoft's Total Media Theater is a relatively obscure / unknown product, but makes a really excellent player for not only AVCHD but for BluRay and HDV mpeg2. It is a bit pricey but well worth it, and it is fast and reliable.


Larry

Larry, Nero it's not that cheap to feel embarased...
I was aware about Arcsoft TotalMedia Extreme suite. Unfortunately, there are too few informations about software, from another forum I read that it also uses smartencoding. I'm sure that player uses DXVA2, also.

My comment about Nero 8 being cheap is based on the fact that it has 11 excellent programs for around $70, including burning software, an excellent audio editor which handles AC3 files, mp3, and virtually all other audio formats, some really decent disk drive test programs, backup software, and the 2 amazingly competent HD programs which both play and create outstanding AVCHD, BluRay, and pretty good HD DVD besides. I contrast that to my Final Cut Pro which costs $1300 and can hardly create AVCHDs.........

My comment about Nero 8 being cheap is based on the fact that it has 11 excellent programs for around $70, including burning software, an excellent audio editor which handles AC3 files, mp3, and virtually all other audio formats, some really decent disk drive test programs, backup software, and the 2 amazingly competent HD programs which both play and create outstanding AVCHD, BluRay, and pretty good HD DVD besides. I contrast that to my Final Cut Pro which costs $1300 and can hardly create AVCHDs.........

I am really a complete novice when it comes to editing programs and the like, so please excuse this question, if it somehow seems way beyond the limits of stupidity.
I have Pinnacle 12, which to me, seems to work fairly well. How does Pinnacle compare to those programs you are using?

Thanks.
Mike

Mike,

Pinnacle 12 Ultimate is a more refined and more feature-laden program in almost every respect Mike, when compared to Nero. It also has a lot of content available by download to expand the choices of menus, themes, etc, which Nero does not.

It lacks one key feature, hwoever, which makes it almost entirely unattractive to me personally, Specifically, it cannot "Smart Rednder" AVCHD content.

Unlike Nero, when making AVCHD or BluRay disks using Pinnacle, each and every frame is uncompressed and then recompressed. This produces 2 serious penalties:

1. The rendering time is very long, and can be many hours of waiting time, depending on your specific hardware.

2. The resulting image quality is degraded when compared side by side to the original captured AVCHD content. The effect is a smearing of fine detail and a small color change in both reduced intensity and altered color balance / hue.

Nero does not normally recompress, since it has "Smart Rendering" which directly outputs the original unmodified AVCHD frames / GOPs unless the user choses to make editing alterations. Even then the modified frames only occur in the changed areas, leaving the unchanged, non-modified areas precisely the same as the original camera video capture.

The only other difference is that Nero is considerably less expensive that Pinnacle.

In all fairness to Pinnacle, it is a very capable program with many more features than Nero, and makes very attractive disks.

Larry

Mike,

Pinnacle 12 Ultimate is a more refined and more feature-laden program in almost every respect Mike, when compared to Nero. It also has a lot of content available by download to expand the choices of menus, themes, etc, which Nero does not.

It lacks one key feature, hwoever, which makes it almost entirely unattractive to me personally, Specifically, it cannot "Smart Rednder" AVCHD content.

Unlike Nero, when making AVCHD or BluRay disks using Pinnacle, each and every frame is uncompressed and then recompressed. This produces 2 serious penalties:

1. The rendering time is very long, and can be many hours of waiting time, depending on your specific hardware.

2. The resulting image quality is degraded when compared side by side to the original captured AVCHD content. The effect is a smearing of fine detail and a small color change in both reduced intensity and altered color balance / hue.

Nero does not normally recompress, since it has "Smart Rendering" which directly outputs the original unmodified AVCHD frames / GOPs unless the user choses to make editing alterations. Even then the modified frames only occur in the changed areas, leaving the unchanged, non-modified areas precisely the same as the original camera video capture.

The only other difference is that Nero is considerably less expensive that Pinnacle.

In all fairness to Pinnacle, it is a very capable program with many more features than Nero, and makes very attractive disks.

Larry

Thanks Larry for your response.

My workflow, such as it is, is as follows. I download footage off of my SR11 into my computer using the supplied Sony software Picture Motion Browser. It then asks me a question, which I can't remember right now, and I always say "yes". My next step is to capture the footage into Pinnacle and then do my thing. I produce both SD and HD discs, depending on who I intend to give them to. I also always burn my captured footage from the PMB directly onto a DVD as AVCHD files for archiving purposes. If need be I would be able to retrieve those files in the event that my hard drive ever fails.

You state that my final product will be less than what it original was, quality wise, when using Pinnicle. This concerns me. So here are some questions:
1. Can I download my footage directly from my SR11 into any NLE? And would this offer any benefits?
2. Which Nero program would be best for me to get? I want to produce an all around decent production with the usual tools available for editing and then burn discs using my current burner.
3. I have been burning onto Verbatim DVD+R discs, reading somewhere that they retain the information the best over longer periods of time. Should I be using DVD-R instead? And should I invest in a BR burner instead of burning onto regular DVDs?

My computer is a quad core Q6600 2.4 Ghz, with 2 GB of ram. I have an ATI Radeon 2600 HD video card with 512 MB.

As you can see, I have a lot to learn, and know just enough to get myself in trouble. What I want to do is to be able to produce the best product possible, with the least amount of expense, and with the easiest learning curve (who doesn't want this, right?). I only need to be able to trim, have some transistions, titles, chapters, maybe some music, and be able to add narration. Color correction, etc. would be an extra benefit, but not too necessary.

So any and all help you can give me would be appreciated.

Thanks,
Mike

Mike, I have similar configuration: SR11, Q6600, 2GB RAM, but 8600GTS. About PMB, I think it asks about analyze. No matter what I do, this program always failed to analyze (I suspect it doesn't work with PAL version of files). But the files are imported, only it hasn't thumbnails (that's what PMB do in analyse). However, from what I read if analyse works, it takes a lot of time...
I don't know if PMB renders file or not when you create AVCHD DVD. If it doesn't take longer than 30min, it's ok, the quality is identical.
It's hard to invest in another software if you have already Pinnacle. I worked a long time ago with Pinnacle and it's interface was very intuitive. It's the same with Nero, in no more than a couple of hours you will learn to use it at full potential for your needs, and if you already use Pinnacle the learning curve will be even smaller. For very advanced editing... it takes some time.
About DVD, I asked Larry the same question. I think we all have the money for BR discs, but it simply doesn't worth comparred to normal DVD...

Mike (and Mircea),

To respond to Mike's 3 questions:

1. Pinnacle allows you to import the .mts files from your hard disk directly. Be sure you are in the "Show Videos" mode and then use the little folder icon in the upper left pane to "Select Video Files from a Different Folder" to select and open the .mts files. The Sony software is not required and just adds another delay.

2. Nero 8 Ultimate is a Swiss Army knife type of product with 11 different programs included, one of which is Nero Vision 5, which entirely avoids recompression by "Smart Rendering" clips which have not been altered other than trimmed.

I would recommend it to you only for that reason, since Pinnacle is a much more feature-laden program, but you may want to experiment with the trial version of Nero to see how its AVCHD disks look to you compared to Pinnacle's AVCHD disks, and also compare workflows and waiting times. The free trial should allow you to do this.

3. I have mostly used Verbatim DVD-Rs but also use the +R, particularly for dual layer, and they supposedly will last a long time. My experience with other brands has been dismal, but time will tell if these are better. BluRay media is still very expensive, over $10 per blank, so I seldom burn BD myself except to experiment. I have been using Verbatim BD-RE disks to allow erasing and re-use, and they work great, but cost me close to $20 apiece. You might want to wait on the BD burner, since you can fit about an hour of 1920 by 1080 HD content on a red laser AVCHD, and it looks great.


Hope this answers your questions.

Larry

I'm using Pinnacle Studio 12 to edit my Sony SR11 video and, yes, it does re-render the video. What I've learned is that there are many compression algorithms defined in the AVC specification and the Sony camera uses a different algorithm from what Studio uses. Therefore Studio decompresses the Sony format and recompresses using their format. This does introduce, IMHO, minor artifacts into the video. While I would prefer that Studio didn't recompress the video, I don't find the quality to be deminished enough to stop me from using it. YMMV. I've also read that Studio is improving their compression algorithms over time and expects the impact to be minimized, if not eliminated. I don't know the timeframe for these improvements.

As has been stated many times in this forum, AVC is a very young technology and will go through some signicant improvements over the next several years. We are at the early adopters cycle of this technology and there is always a price to pay in this cycle. You need to decide if the price is worth the other advantages.

I'm using Pinnacle Studio 12 to edit my Sony SR11 video and, yes, it does re-render the video. What I've learned is that there are many compression algorithms defined in the AVC specification and the Sony camera uses a different algorithm from what Studio uses. Therefore Studio decompresses the Sony format and recompresses using their format. This does introduce, IMHO, minor artifacts into the video. While I would prefer that Studio didn't recompress the video, I don't find the quality to be deminished enough to stop me from using it. YMMV. I've also read that Studio is improving their compression algorithms over time and expects the impact to be minimized, if not eliminated. I don't know the timeframe for these improvements.

As has been stated many times in this forum, AVC is a very young technology and will go through some signicant improvements over the next several years. We are at the early adopters cycle of this technology and there is always a price to pay in this cycle. You need to decide if the price is worth the other advantages.

I agree Phil. Pinnacle has a lot of nice features, and I especially like the recently added montages and video effects. The re-rendering time and image quality effects are not at all bad for the specific purpose I often use Pinnacle, which is to make motion menus and composites which I then bring into other programs. The latest version of Pinnacle has been a lot more stable than the earlier versions also (finally).

Larry

VLC 0.9.2 was just released and offers AVCHD playback (it wasn't working properly on Windows with the previous release).

VLC media player - Overview (http://www.videolan.org/vlc/)

Great news Chris! It seems to run fine here.

Maybe the Mac version will begin to offer some relief for Mac owners also.

Larry

Just downloaded that new version of VLC and it does an incredible job of playing MTS files from the Canon HF100. I've been using VLC for several months and that is one great file player.

Media Player Classic Home Cinema is an extremely light-weight free program for Windows.

MPC Home Cinema also has H.264 and VC-1 with DXVA support, you can playback AVCHD files smoothly.

http://camcordervideoshare.com/how-to/how-to-playback-full-hd-footages-on-hdtv-using-media-player-classic-homecinema/

VLC 0.9.2 was just released and offers AVCHD playback (it wasn't working properly on Windows with the previous release).

VLC media player - Overview (http://www.videolan.org/vlc/)

This may catch up someone’s interest: I have noticed that different PC players – such as Windows Media Player (ver.12), Windows Media Center, and VLC media player (ver. 1.1.2) show AVCHD footage a little bit differently.

I cannot say the difference is huge but never the less, it’s evident.

And the best I like how the VLC plays back AVCHD. Interesting enough, this software can play even AVCHD clips recoded with chroma subsampling 4:2:2 or/and in the xvYCC color space.