AV1 hardware decoder implementations - Page 2

quietvoid · 22nd October 2021, 01:36

Well this is unfortunate. The decoder in the FireTV Stick 4K Max is not applying film grain on playback.
Has anyone checked if others supporting the Main profile do apply it?

benwaggoner · 22nd October 2021, 04:21

Quote:

Originally Posted by quietvoid

Well this is unfortunate. The decoder in the FireTV Stick 4K Max is not applying film grain on playback.
Has anyone checked if others supporting the Main profile do apply it?

It's not applying the FGS filter, even though the AV1 bitstream is flagged with it?

If you can get me a repro file, I can get someone to take a look.

hajj_3 · 22nd October 2021, 11:11

Amlogic A311D2 supports 8K AV1 @24p/4K 60p: https://www.cnx-software.com/2021/10...ssor-16gb-ram/

quietvoid · 22nd October 2021, 13:17

Quote:

Originally Posted by benwaggoner

It's not applying the FGS filter, even though the AV1 bitstream is flagged with it?

If you can get me a repro file, I can get someone to take a look.

Yes that's right. I tested it with a libaom encoded file that has film grain params in the stream, but there is only one set that is repeated for all the frames.

You can find the file here: https://mega.nz/file/wR0AmY7K#eG3IIc...gBOAcLEeVfJwh0

I've played it with both Kodi and https://github.com/moneytoo/Player, both of which use the hardware decoder (JustPlayer uses ExoPlayer) and result in no grain application.
While mpv for Android is in software and applies the grain.

I'll have to test with a complete grain table to see if it makes a difference.

benwaggoner · 27th October 2021, 01:54

Quote:

Originally Posted by quietvoid

Yes that's right. I tested it with a libaom encoded file that has film grain params in the stream, but there is only one set that is repeated for all the frames.

You can find the file here: https://mega.nz/file/wR0AmY7K#eG3IIc...gBOAcLEeVfJwh0

I've played it with both Kodi and https://github.com/moneytoo/Player, both of which use the hardware decoder (JustPlayer uses ExoPlayer) and result in no grain application.
While mpv for Android is in software and applies the grain.

I'll have to test with a complete grain table to see if it makes a difference.

Thank you. It is being investigated. There was a Broadcom SDK issue (I believe fixed in the latest updates) that I know impacted some AV1 FGS decode, so it might be related to that.

soresu · 27th October 2021, 03:12

Quote:

Originally Posted by hajj_3

Amlogic A311D2 supports 8K AV1 @24p/4K 60p: https://www.cnx-software.com/2021/10...ssor-16gb-ram/

If you read the article fully it mentions that 8K video output is not supported despite being able to decode video at that resolution.

Apparently 8K output is expected on the long awaited S908X which may be a bit beefier with A76/A55 cores instead vs A311D2's A73/A53 core configuration.

olduser217 · 28th October 2021, 08:27

Fire TV Stick 4K Max uses Broadcom SoC?
According to Wikipedia, its CPU is Mediatek MT8696.

Quote:

Originally Posted by benwaggoner

Thank you. It is being investigated. There was a Broadcom SDK issue (I believe fixed in the latest updates) that I know impacted some AV1 FGS decode, so it might be related to that.

quietvoid · 28th October 2021, 14:27

I'm pretty sure it's Mediatek, all the MediaCodec decoders advertised are MTK.

benwaggoner · 29th October 2021, 18:21

Quote:

Originally Posted by soresu

If you read the article fully it mentions that 8K video output is not supported despite being able to decode video at that resolution.

Apparently 8K output is expected on the long awaited S908X which may be a bit beefier with A76/A55 cores instead vs A311D2's A73/A53 core configuration.

FWIW, it's not like 8K video is happening any year soon (no evidence yet that humans can see any difference between 4K and 8K in moving picture content). And 8K TVs typically have very advanced upsamplers in them, so it's probably better to feed native 4K to them and let the TV take it up to 8K.

Spyros · 4th January 2022, 18:13

AMD's new mobile CPUs (with Zen 3+ and RDNA 2 architectures) support AV1 hardware decode.

Blue_MiSfit · 6th January 2022, 07:22

Yet their newly announced lower end 6500 series discrete GPUs lack hardware decode!

benwaggoner · 7th January 2022, 23:43

Quote:

Originally Posted by Blue_MiSfit

Yet their newly announced lower end 6500 series discrete GPUs lack hardware decode!

No discreet decode hardware for anything?

That would break a lot of things, including anything with a hardware DRM requirement.

Blue_MiSfit · 8th January 2022, 02:31

They lack AV1 decode specifically

Curiously they also gimped hardware AVC and HEVC encoding on these products, which didn't make any sense to me.

benwaggoner · 11th January 2022, 22:43

Quote:

Originally Posted by Blue_MiSfit

They lack AV1 decode specifically

Curiously they also gimped hardware AVC and HEVC encoding on these products, which didn't make any sense to me.

How gimped?

rwill · 11th January 2022, 23:17

Quote:

Originally Posted by benwaggoner

How gimped?

I think "gimped" as in "removed".

Blue_MiSfit · 12th January 2022, 07:22

It's not clear if the hardware encoders are still present, or restricted to 1080p..

hajj_3 · 12th January 2022, 16:43

Quote:

Originally Posted by benwaggoner

How gimped?

i think i read that they removed h265 hardware encoding.

benwaggoner · 12th January 2022, 18:27

Quote:

Originally Posted by Blue_MiSfit

It's not clear if the hardware encoders are still present, or restricted to 1080p..

Ugh.

I can kind of get why they might; HW encoders are mainly used for videoconferencing stuff in practice, where 1080p is a stretch goal. I've maybe used the HW encoders is my a6000 GPU three times ever.

quietvoid · 27th April 2022, 15:56

7 months have passed and the FireTV Stick 4K Max still doesn't do film grain synthesis correctly on playback.
At this point I've yet to watch anything in AV1 because of this.

I also don't think it supports AV1 through Netflix yet, but I haven't been subscribed for a couple months now.

ChaosKing · 27th April 2022, 16:30

@quietvoid I would like to test it on my firetv max. Are there publicly available samples with film grain synthesis to download anywhere? AV1 works with Kodi 20 (dev version) btw.

EDIT
Found your link https://forum.doom9.org/showthread.p...16#post1955516

Hmm yeah I don't see any generated noise in Kodi.

EDIT2
Looks correct in VLC, but not sure if HW accelerated...

22nd October 2021, 01:36	#21 \| Link
quietvoid Registered User Join Date: Jan 2019 Location: Canada Posts: 545	Well this is unfortunate. The decoder in the FireTV Stick 4K Max is not applying film grain on playback. Has anyone checked if others supporting the Main profile do apply it? __________________ LG C2 OLED \| GitHub Projects

28th October 2021, 14:27	#28 \| Link
quietvoid Registered User Join Date: Jan 2019 Location: Canada Posts: 545	I'm pretty sure it's Mediatek, all the MediaCodec decoders advertised are MTK. __________________ LG C2 OLED \| GitHub Projects

4th January 2022, 18:13	#30 \| Link
Spyros Registered User Join Date: Jun 2019 Posts: 14	AMD Unveils 6nm Ryzen 6000 ‘Rembrandt’ Chips With Zen 3+, RDNA2 and DDR5 AMD's new mobile CPUs (with Zen 3+ and RDNA 2 architectures) support AV1 hardware decode.

6th January 2022, 07:22	#31 \| Link
Blue_MiSfit Derek Prestegard IRL Join Date: Nov 2003 Location: Los Angeles Posts: 5,963	Yet their newly announced lower end 6500 series discrete GPUs lack hardware decode! __________________ These are all my personal statements, not those of my employer :)

8th January 2022, 02:31	#33 \| Link
Blue_MiSfit Derek Prestegard IRL Join Date: Nov 2003 Location: Los Angeles Posts: 5,963	They lack AV1 decode specifically Curiously they also gimped hardware AVC and HEVC encoding on these products, which didn't make any sense to me. __________________ These are all my personal statements, not those of my employer :)

22nd October 2021, 11:11	#23 \| Link
hajj_3 Registered User Join Date: Mar 2004 Posts: 1,069	Amlogic A311D2 supports 8K AV1 @24p/4K 60p: https://www.cnx-software.com/2021/10...ssor-16gb-ram/

12th January 2022, 07:22	#36 \| Link
Blue_MiSfit Derek Prestegard IRL Join Date: Nov 2003 Location: Los Angeles Posts: 5,963	It's not clear if the hardware encoders are still present, or restricted to 1080p.. __________________ These are all my personal statements, not those of my employer :)

27th April 2022, 15:56	#39 \| Link
quietvoid Registered User Join Date: Jan 2019 Location: Canada Posts: 545	7 months have passed and the FireTV Stick 4K Max still doesn't do film grain synthesis correctly on playback. At this point I've yet to watch anything in AV1 because of this. I also don't think it supports AV1 through Netflix yet, but I haven't been subscribed for a couple months now. __________________ LG C2 OLED \| GitHub Projects Last edited by quietvoid; 27th April 2022 at 16:43.

27th April 2022, 16:30	#40 \| Link
ChaosKing Registered User Join Date: Dec 2005 Location: Germany Posts: 1,752	@quietvoid I would like to test it on my firetv max. Are there publicly available samples with film grain synthesis to download anywhere? AV1 works with Kodi 20 (dev version) btw. EDIT Found your link https://forum.doom9.org/showthread.p...16#post1955516 Hmm yeah I don't see any generated noise in Kodi. EDIT2 Looks correct in VLC, but not sure if HW accelerated... __________________ AVSRepoGUI // VSRepoGUI - Package Manager for AviSynth // VapourSynth VapourSynth Portable FATPACK \|\| VapourSynth Database \|\| https://github.com/avisynth-repository Last edited by ChaosKing; 27th April 2022 at 16:43.

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