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19th July 2017, 07:31 | #1941 | Link | |
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Quote:
ftp://helpedia.com/pub/multimedia/te...ecoders_clips/ and test them with latest LAV x64 filters and DXVA Checker in both decode and playback mode of 1280x720 scaling in order to put your results here in the table: https://forum.doom9.org/showthread.p...99#post1799099
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19th July 2017, 12:45 | #1943 | Link |
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You can take a look at my links regarding performance of HW decoding on both H.264 & H.265.
It is more than fast enough for anything meaningful e.g Blu-ray UHD (not corner cases like 8K) HEVC never had a problem using Polaris card, although it was a little bit on the edge regarding performance. But not anymore, new drivers solved that "problem". Now, regarding H.264 interlaced content, my last test using latest drivers for AMD, Nvidia, Intel and latest LAV x64 filters gave me a little surprise. AMD has now exactly the same behavior like Nvidia and Intel. So, H.264 interlaced is definitely fixed too.
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19th July 2017, 13:10 | #1945 | Link |
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Yes, around there 17.4.x
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19th July 2017, 21:49 | #1946 | Link | |
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Quote:
http://iphome.hhi.de/marpe/download/...3_preprint.pdf But, as I've been shown a 4k video that is encoded under both HEVC and VP9, I will undertake to look at both and report back |
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19th July 2017, 23:05 | #1948 | Link | |
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Quote:
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LAV Filters - open source ffmpeg based media splitter and decoders |
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22nd July 2017, 11:12 | #1950 | Link | ||
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Regarding VP9 hybrid & pure acceleration support of browsers using Youtube
Well, it seems that I managed to come up to some conclusions regarding VP9 acceleration (hybrid or pure fixed-function) of the three well known browsers (Chrome, Firefox, Edge) using Youtube on different hardware.
First of all VP9 acceleration is supported by all three nowadays and it definitely works on recent hardware supporting fixed-function VP9 acceleration like Kabylake for Intel and 950/960 for Nvidia, along with all Nvidia Pascal cards of course. Some browsers could have problems with 8K VP9 acceleration though, but that's a very new and extremely high resolution option of Youtube streams, added lately. The other fact is that for Chrome and Chromium based browsers you need a very recent Win OS, which is Windows 10 RS1 (Anniversary Update with a release on August 2016) or later according to this: https://groups.google.com/a/chromium...ws/qSePjavyJsU The first official stable Chrome version supporting VP9 acceleration is v54, released after Anniversary Update on November 2016. Now, Edge as we know is a Windows 10-only browser so obviously you need a Windows 10 OS and Edge enabled VP9 acceleration in Windows Insider builds before Anniversary Update, but the first stable Edge version supporting VP9 acceleration is inside Windows 10 RS1 (Anniversary Update) according to this: https://blogs.windows.com/msedgedev/...SA3aIvOpy38.97 I don't know when exactly Firefox enabled in stable releases the VP9 acceleration and what are its Win OS requirements, but it seems that using Windows 10 and latest versions like v55, it works. VP9 hybrid acceleration was firstly supported by Intel iGPUs like Broadwell and Skylake and AMD added that functionality officially on December 2016 inside Crimson 16.12.1 drivers only for Chrome: Quote:
Also, as I read, it's an OpenCL based solution not only for RX 400/RX 500 series but some previous generations, too. The first driver didn't enable the VP9 hybrid acceleration by default and the second driver 16.12.2, fixed that according to AMD. Quote:
You have to force enable it using this switch: chrome.exe --enable-accelerated-vpx-decode=2 The reason is probably low performance. But for Intel and CPUs prior to Kabylake, things are even worse. All of the VP9 hybrid acceleration capable CPUs, like Broadwell and Skylake, are not allowed to use VP9 hardware decoding of Chrome according to this patch: https://groups.google.com/a/chromium...ws/BghP-1eqyhg I have no idea regarding Edge and Firefox support of Intel's hybrid VP9 acceleration. For Polaris cards, the actual use of that somewhat crippled VP9 hybrid decoder, lasted only 4 months between the first driver support and Windows 10 Creators Update which broke VP9 acceleration. So, for that reason, I have opened a thread in AMD forums for anyone interested to read and contribute to the common effort of an actual fix - if possible - of VP9 hybrid acceleration. You can read and write your comments here: https://community.amd.com/thread/218278 I have a Core i5 2400 right now with a RX 470/8GB card and a real 50Mbps VDSL2 (FTTC) line, testing 4K60 fps clips and I think AMD should have kept its promise of offering VP9 4K60fps support using Polaris cards.
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Win 10 x64 (19042.572) - Core i5-2400 - Radeon RX 470 (20.10.1) HEVC decoding benchmarks H.264 DXVA Benchmarks for all Last edited by NikosD; 22nd July 2017 at 11:20. |
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25th July 2017, 12:17 | #1951 | Link |
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Hello,
I'm following this forum for a month now and I didn't find definitive answer if a new GT 1030 would be adequate upgrade for my years old HTPC. It will be connected directly to 4K HDR TV using HDMI.
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25th July 2017, 12:22 | #1952 | Link |
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All these are good questions, but I'm afraid GT 1030 is not so popular so the one and only owner appeared here has declared that he doesn't own a 4K display.
We must find a combination of 1030 using a 4K display, which could be rare considering low GPU power of the card and only 2GB VRAM.
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25th July 2017, 13:58 | #1953 | Link |
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Based on my limited experience with a GTX1060 3gb, I would say there's no chance. In all these cases, memory usage was well above 2 gb and seemed to be pushing the limits for both memory and performance. I'm going to a GTX1070 as a result.
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25th July 2017, 19:48 | #1954 | Link |
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@NikosD
2 GB is enough to play 4k video. Of course, you can specially tweak the settings, but this is not an indication that the video card is bad.
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25th July 2017, 20:03 | #1955 | Link |
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The problem could be the output of 4K not the decoding and then downscaling to 1080p.
I don't have a 4K display, but seems strange that Nvidia has set the requirement to >3GB for 4K Netflix playback, if 2GB could be enough.
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25th July 2017, 20:04 | #1956 | Link |
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while it is possible to playback UHD videos at UHD with 2GB Vram you are really pushing it.
i was using a 960 with 2Gb for sometime doing this just opening a web browser was pushing it over the limited for me. cutting corners by using 8 bit buffers like mpc-BE may help in term of Vram usages but that doesn't mean everyone is unable to see the banding... |
25th July 2017, 23:02 | #1957 | Link |
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Good news!
It seems that latest Chrome Canary v62 (x64) works like a charm using VP9 hybrid acceleration of a Polaris card and Creators Update! Firstly, like plain Chrome v59 (x64) it recognizes out of the box VP9 Youtube content but it doesn't enable by default the hybrid VP9 acceleration. BUT if you force enable VP9 acceleration using the --enable-accelerated-vpx-decode=2 switch, you see no stuttering in the video decoding and it has a minimal frame dropping of just 35 frames during the whole duration of the very difficult 4K60 fps Youtube clip posted above. The GPU load works exactly like Chrome, but without stuttering and you see the GPU and memory clocks going to the highest levels. The CPU usage is around ~50% on average. So, it seems that AMD's VP9 hybrid acceleration works, at least on one Chromium based browser and force enabled. Of course Canary has some strange behavior as an experimenting browser, so we definitely need a more stable overall browser like Chrome to implement correctly the VP9 hybrid acceleration.
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26th July 2017, 01:40 | #1958 | Link |
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https://techreport.com/news/31627/am...pport-on-linux
The UVD 7.0 decoder and Video Coding Engine 4.0 encoder are reported to be included in the upcoming Vega based GPUs. Hope AMD could catch GM206 now.. |
26th July 2017, 04:28 | #1959 | Link |
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@NikosD
Netflix wrote a complete nonsense. "GTX 1050 (not Ti) with 3 GB of video memory".
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26th July 2017, 05:23 | #1960 | Link |
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No. It was not Netflix.
I told you what Nvidia wrote in their requirements. >3GB VRAM
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