For video/multimedia/graphics on #linux people: I made a PoC for gstreamer using udmabuf to allocate YCbCr buffers for sw-decoded video that can be imported by GPU drivers.
The basic idea is to allow to reuse the highly optimized hw-decoding dmabuf import paths in drivers/toolkits/apps for sw-decoding, so they can cover arbitrary new codecs and less usual formats - e.g. AV1 and H266 on hardware that doesn't have HW support or 422/444 subsampling.
#gstreamer #ffmpeg #wayland #mesa
Robert Mader
npub1fx…0z4hg
2025-02-23 12:25:48 UTC
Author Public Key
npub1fx9ntmxdrn3j6m40dcz6e8zycfnyg822vzaaxdlvpakrpyyf098ql0z4hgSeen on
wss://relay.momostr.pinkPublished at
2025-02-23 12:25:48 UTCEvent JSON
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