Conversation
rmader@mastodon.social

Robert Mader

I'm increasingly excited about what support coming together across the board in could mean for multimedia in the free ecosystem.

Just some thoughts about what I *think* is on the table:
- fluent/efficient AV1[1] playback across the board, *maybe* even on hardware like the Raspberry Pi4
- real-time AV1 encoding in reasonable quality for video chat, screencasting and camera recording
- a GPU ISP, allowing reasonable image quality with any camera sensor

1: or any other format?

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rmader@mastodon.social

Robert Mader

Reply to @rmader@mastodon.social

This is probably over-optimistic - but seeing what's being done with CUDA on that other platform, how dmabuf and kms are evolving and how gl/vk support came together in Mesa - it might be somewhat realistic?

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pavel

Pavel Machek

Reply to @rmader@mastodon.social
@rmader Yes, GPUs should be able to help a lot with image processing. I'd be very interested in ISP and video encoding (as would be libcamera project). Unfortunately, I am not gpu expert. I played with ISP on GPU, code is at git@github.com:rasmus25/debayer-rpi.git , git@gitlab.com:tui/debayer-gpu.git .
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rmader@mastodon.social

Robert Mader

Reply to @rmader@mastodon.social

Hm, looks like I was wrong about de- and encoding parts and it's actually hard to speed those up with opencl. One claim I read was that modern codecs are just too branchy and CPU ends up being better - does anyone know more about that, specifically regarding AV1?

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