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Old 08-23-2012, 02:42 AM   #1
IndyMLVC IndyMLVC is online now
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Default New H.265 twice as efficient as H.264!

Did a quick search and couldn't find anything on this:
http://www.engadget.com/2012/08/15/m...ideo-standard/

What are the chances ANY of our players would be able to play this codec?
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Old 08-28-2012, 11:12 AM   #2
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Originally Posted by IndyMLVC View Post
What are the chances ANY of our players would be able to play this codec?
Zero.

Bluray players and other hardware devices rely on hardware decoders. The chipsets can decode exactly what they were designed for and nothing more.

If you've a reasonably powerful CPU in your PC you should be able to software decode it, or with an upgrade to a future GPU that has a HEVC hardware decoder.
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Old 11-10-2013, 10:22 PM   #3
BozQ BozQ is offline
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I tried encoding in HEVC. It works fine for the most part. But the encoding is extremely slow.

But it has to start from somewhere. I don't have a source higher than 1080p Blu-ray AVC source to test the encoder's efficiency though.
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Old 11-11-2013, 02:29 AM   #4
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Scott Wilkinson and Joe Kane explain H.265 and Joe Kane voices his displeasure with it.

Start at about 43 minutes

Last edited by Canada; 11-11-2013 at 02:36 AM.
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Old 11-12-2013, 07:00 PM   #5
Penton-Man Penton-Man is offline
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Quote:
Originally Posted by Canada View Post
Start at about 43 minutes...
1. If Joe’s home audiences are seeing such a dramatic difference in 4:4:4 vs. 4:2:0 with real world motion picture content then I highly suggest he find a better (state-of-the-art) solution for that conversion processing as something is ‘off’ with his materials and methods.

2. Joe...“I believe it’s only 8 bit”.
From last Jan. - https://forum.blu-ray.com/showthread...in#post6987708
Not to mention the fact that HEVC will continue to advance with work started on extensions for 12-bit video and 4:2:2 and 4:4:4 chroma formats with planned completion in 2014.

3. Rather than dismissing in a cavalier fashion Dolby’s efforts (who are the defacto leaders in HDR research and development [at least since ’07 - http://en.wikipedia.org/wiki/BrightSide_Technologies ])

His HDR expertise might be better served in this role - http://www.cis.rit.edu/files/pdf/jobs/dolby3.pdf

Or, perhaps spending less time on talk shows geared to consumers lecturing about HDR and more to other eductional settings, like so - https://talks.stanford.edu/scott-daly-timo-kunkel/
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Old 11-16-2013, 03:48 PM   #6
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For those who prefer VLC, it now also has HEVC playback as of 2.1.1
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Old 03-09-2018, 02:46 PM   #7
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Hi there is there a u ray player supports h.265 hevc format. i heard the panasonic dmp-ub400eb does and does anyone know another player that does i been looking everywhere
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Old 04-20-2018, 08:26 PM   #8
alchav21 alchav21 is offline
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Quote:
Originally Posted by blurayfan1986 View Post
Hi there is there a u ray player supports h.265 hevc format. i heard the panasonic dmp-ub400eb does and does anyone know another player that does i been looking everywhere
The H.265 Codec is 4K UHD, so you need a 4K Blu-ray Player. I like Panasonic I've had several. They are all backward compatible to Blu-ray, and there are some around $100 but the better ones are pricy. Depending on your budget, I would pick low end Panasonic at around $200.

Last edited by alchav21; 04-27-2018 at 05:50 AM.
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Old 05-10-2018, 04:07 AM   #9
stonesfan129 stonesfan129 is offline
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H265 is not exclusive to 4K. That was what its designers had in mind, but you could use any number of H265 encoders to compress any video, it doesn't have to be 4K video. It is a more efficient way of encoding video than the older standards like VC-1, MPEG-4 AVC or MPEG-2, but that doesn't automatically mean it will always be twice as efficient as H264. Under certain conditions, I have seen where video encoded with x264 still looks better than the same thing done with x265. More things still support H264 not just because it is an older standard, but also because H265 (along with 10 and 12-bit color depth) takes significantly more processor power to decode. Support for H265 (things that can play it) is getting to be more and more common. But tablets and phones usually are not going to have enough processing power to play H265-encoded video. One area where H265 will really be beneficial is with television programming and streaming providers since H265 is more efficient and thus requires less bandwidth. For movies, I think they would have been fine staying with H264 and just using a bigger disc.

Last edited by stonesfan129; 03-01-2020 at 12:15 PM.
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Old 11-28-2018, 11:04 PM   #10
djgarygillespie djgarygillespie is offline
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I have a question on the encoding, I apologize if this has already been explained.
I'm trying to figure out at what point x265 encoding looses video quality.

If a video encoded with x264 has video stream average around 12mbs, and a video encoded with x265 has a video stream around 2mbs, does the x264 have better video quality since the video stream is about 10mbs higher?

I'm not sure if the video steam goes down due to the nature of x265 encoding, or if size of the video steam went down due to the encoder picking a lower quality setting to make the size of the file smaller.
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Old 12-08-2018, 09:10 PM   #11
Wendell R. Breland Wendell R. Breland is offline
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Quote:
Originally Posted by djgarygillespie View Post
If a video encoded with x264 has video stream average around 12mbs, and a video encoded with x265 has a video stream around 2mbs, does the x264 have better video quality since the video stream is about 10mbs higher?
The x265 stream would need to be about 7.2 Mbps to have the same quality as the x264 stream based upon a 40% reduction. Some claim 50% reduction for x265 vs x264 which means 6 Mbps. More info here. Click the graphics on that page for additional info.
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Old 12-09-2018, 03:43 PM   #12
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Quote:
Originally Posted by Wendell R. Breland View Post
The x265 stream would need to be about 7.2 Mbps to have the same quality as the x264 stream based upon a 40% reduction. Some claim 50% reduction for x265 vs x264 which means 6 Mbps. More info here. Click the graphics on that page for additional info.
When I rip standard Blu rays with DVDFAB, I usually convert them to 15mbps in H.265. Quality still looks pretty good to me. I wonder if when AV1 is finalized I can take that even lower.
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Old 11-24-2019, 09:19 PM   #13
Rocky Road Rocky Road is offline
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Default H265 4k--8k

My Understanding is H265 is what gave 4K and 8K their Resolution Size.

So why does 4K & 8K use H264 ????
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Old 04-02-2020, 02:24 AM   #14
stonesfan129 stonesfan129 is offline
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Quote:
Originally Posted by Rocky Road View Post
My Understanding is H265 is what gave 4K and 8K their Resolution Size.

So why does 4K & 8K use H264 ????
I realize I'm responding to an old post - but no, H265/HEVC has nothing to do with the resolution. HEVC was necessary for compressing UHD video because the file size is so large compared to 1080. I don't know what formats the studios use for compression when they film things digitally. I would imagine it still uses HEVC but it's not anywhere near as compressed as what is released on home video formats. 4K UHD discs pretty much all use H265/HEVC. I don't think I've ever seen a 4K UHD discs encoded with H264/MPEG-4 AVC.
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Old 08-24-2012, 03:56 AM   #15
IndyMLVC IndyMLVC is online now
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Interesting:

Quote:
In addition to mobile applications, H.265/HEVC will support up to 8K or 4320p (76804320) resolution, just in time for an industry push towards 4K HDTV in the coming years. The decrease in bandwidth requirements per stream could also allow more streams to be transmitted within the same frequency.
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Old 08-24-2012, 06:32 AM   #16
lazystoner lazystoner is offline
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I assume we can call this MPEG-5?
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Old 08-24-2012, 06:58 AM   #17
swifty7 swifty7 is offline
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so what's better this or mkv?
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Old 08-24-2012, 09:32 AM   #18
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Originally Posted by swifty7 View Post
so what's better this or mkv?
MKV is just a container. The codec most commonly used in MKV is H.264.
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Old 08-24-2012, 09:09 PM   #19
bhampton bhampton is offline
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I can't wait for H.266
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Old 08-29-2012, 04:12 PM   #20
swifty7 swifty7 is offline
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Quote:
Originally Posted by PenguinMaster View Post
MKV is just a container. The codec most commonly used in MKV is H.264.
oh yeah!! that's right!! silly me to ask such a question.
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