Vaapi

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skynet

Re: MPlayer 2026 SVN/CVS FFMPEG7.1/Vaapi

Posted on: Yesterday 10:57 #81

Just popping in

Thanks Maijestro for the video and explanations.

Okay, the video is fine now; it all depends on how the YouTube video was encoded.

But I still have a problem: the audio cuts out at a certain point.

I've tried different versions of YT.rexx, but it doesn't change anything.

I've changed my screen resolution, disabled everything in WBStartup and in user-startup, and tried with different videos, but the audio cuts out again.

Here are the videos I tested with.

https://www.youtube.com/watch?v=PgC-rNaBh7Y&pp=0gcJCT8LAYcqIYzv

https://www.youtube.com/watch?v=wN7QX_pwoIw

https://www.youtube.com/watch?v=tnboohDM3ug

https://www.youtube.com/watch?v=bzZjG9B9_Ug&pp=ygUHY2Fubm9ucw%3D%3D

I'm stumped, I don't know what's causing this?

K-L

Re: MPlayer 2026 SVN/CVS FFMPEG7.1/Vaapi

Posted on: Today 6:44 #82

Just can't stay away

@sailor

Quote:

On X1000+RadeonHDv5 VAAPI works fine, but you cannot play H.265 videos here: Southern Island cards itselves have only HD(720p) H.264 decoder and no H.265 decoder - UVD3.1 To utilize full VAAPI you need Polaris card, which has FullHD H.264 and H.265 decoders - UVD6.3

Southern Islands can perfectly decode 1080p streams. There is something Hans nevers manage to find which prevents Southern Islands from decoding correctly 1080p videos (and even some 720p videos whereas CPU usage is still low).

Here are the capabilities of an R7 250 (from AI since I did no want to look out for many sites right now):

Quote:

1. Capabilities of the R7 250

The R7 250 has the UVD (Unified Video Decoder) block, version 4.x.

It can hardware decode Full HD 1920×1080 videos in:
* H.264/AVC (common in .mp4, .mkv, Blu-ray)
* MPEG-2
* VC-1

When playing back supported 1080p H.264, CPU usage typically drops to just a few percent.

2. Important limitations

No hardware decoding support for HEVC/H.265, VP9, or AV1 on this generation.

If your video is encoded in H.265 (common for recent encodes), decoding will mostly rely on the CPU.

It is optimized for 8-bit H.264; exotic profiles (high profiles, 10-bit, very high bitrates) may also fallback partially to CPU.

What's more, the driver crashes with a grey screen without any reason afters having watcheds one or two videos.

Hans explained he never found why this behaviour was occuring and advised to switch to an RX card.

--
AmigaONE X1000 and Radeon RX 560
Sam460 and Radeon RX 560
MiST
FPGA Replay + 060 DB

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