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Old 9th August 2021, 18:31   #501  |  Link
Mister XY
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what do you mean with low power mode?
Quote:
Detected avaliable features for hw API v1.35, HEVC, Constant QP (CQP)
RC mode o
10bit depth o
Fixed Func o
Interlace o
VUI info o
Trellis x
Adaptive_I x
Adaptive_B x
WeightP o
WeightB o
FadeDetect o
B_Pyramid o
+ManyBframes o
PyramQPOffset o
MBBRC x
ExtBRC x
Adaptive_LTR x
LA Quality x
QP Min/Max x
IntraRefresh x
No Deblock o
No GPB o
Windowed BRC x
PerMBQP(CQP) o
DirectBiasAdj x
MVCostScaling x
SAO x
Max CTU Size x
TSkip x
HEVC SAO is not supported on current platform, disabled.

Last edited by Mister XY; 9th August 2021 at 18:35.
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Old 9th August 2021, 22:45   #502  |  Link
Yups
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It's called fixed function in QSVEnc. Intel calls it low power.


--fixed-func use fixed func instead of GPU EU (default: off)
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Old 10th August 2021, 04:21   #503  |  Link
Mister XY
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with --fixed-func qsvenc has a crash, but i see in log
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HEVC SAO is not supported on current platform, disabled
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Old 10th August 2021, 10:04   #504  |  Link
Yups
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SAO isn't supported by QSVEnc and that's why you get this message. This is unrelated to the FF/low power mode.
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Old 11th August 2021, 19:27   #505  |  Link
Mister XY
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How good is the ryzen 5600g in hardware encode?
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Old 12th August 2021, 03:43   #506  |  Link
RanmaCanada
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Quote:
Originally Posted by Mister XY View Post
How good is the ryzen 5600g in hardware encode?
AMD has always sucked. The 5600G runs Vega 7, and uses VCN 2.0. If you want to do hardware encoding, Intel Quicksync, especially the newest hardware, runs complete circles around it. Heck even Nvenc on Maxwell is better than AMD in some instances.
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Old 13th August 2021, 20:27   #507  |  Link
Mister XY
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Ok then I know that the Ryzen is not good. Then I ask the question, what is the best APU / GPU for hardware encoding in x265 format?
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Old 13th August 2021, 22:54   #508  |  Link
Yups
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CBR/VBR= Turing/Ampere
CQP= Iris Xe


Nivida has a big advantage with Lookahead in CBR/VBR mode but overall CQP offers best quality on Iris Xe.
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Old 14th August 2021, 07:06   #509  |  Link
Mister XY
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That means that I currently have the best hardware for encoding because I don't use cbr or vbr.
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Old 14th August 2021, 10:22   #510  |  Link
Yups
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It could be yes, although it's probably much slower than Iris Xe unless it's running in low power mode. I mean you can try and upload a sample, if you tell me the settings I can check out if it's the same. This or this you can use.
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Old 14th August 2021, 12:54   #511  |  Link
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How do you check the vmaf?
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Old 14th August 2021, 13:08   #512  |  Link
Yups
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I don't know. I'm using Video Quality Measurement Tool which isn't free. If the file size is identical there is no need for a quality metrics check.
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Old 14th August 2021, 13:15   #513  |  Link
Mister XY
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OK, what for a sample do you need? A sample from surce ir from encode?
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Old 14th August 2021, 13:18   #514  |  Link
Yups
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I need the encoded sample and settings you were using and driver version. If it's a known source for me I don't need that, so it depends.
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Old 14th August 2021, 22:53   #515  |  Link
Yups
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Posting it here because some people might be interested. We made a comparison with the exact same settings between TGL-U Iris Xe and RKL-S UHD 750. It's a CQP best quality setting and software decoding.


File size/bitrate:

Iris Xe= 494.834 KB/8307.92 kbps
UHD750= 494.837 KB/8307.90 kbps


VMAF:

Iris Xe= 97.358
UHD 750= 97.358


Very minor file size/bitrate difference and same quality. From this I can say it's the same encoder which was expected but good to know it's the same. I was thinking the minor bitrate difference is decoding related. Another run with hardware decoding:


Iris Xe= 493.277 Kb
UHD 750= 493.286 Kb

Minor size difference as well. Iris Xe has two decoder unlike UHD750, this minor size difference could still related to decoding somehow. Doesn't matter in the end, same quality. Speed difference wasn't that big by the way.
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Old 11th September 2021, 09:34   #516  |  Link
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From the release notes of Intels latest driver:

Quote:
Support for H264 and HEVC DX12 video encode on Microsoft Windows® 11 for 11th Generation Intel® Core™ Processors.
https://downloadmirror.intel.com/648...s_100.9864.pdf

What is DX12 video encode and why Windows 11 only?
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Old 11th September 2021, 09:53   #517  |  Link
nevcairiel
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Windows 11 adds a encoding API to DX12, which would be interesting as a cross-vendor way to access video encoding hardware, but the documentation on it seems to still be very much work in progress, so we'll see how usable that is once someone figures out how to use it.
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Old 14th September 2021, 18:17   #518  |  Link
Balling
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Quote:
Originally Posted by Yups View Post
From the release notes of Intels latest driver:


https://downloadmirror.intel.com/648...s_100.9864.pdf

What is DX12 video encode and why Windows 11 only?
dx11va is old. directx11over12 decoder will allow to do dx12 only and already works in Chrome under a flag.
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