Originally posted by brent
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Gallium3D VDPAU On Radeon Starts Working
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It's easy to decode video with the ASIC (if you know how to), but that is not what is being used here. The Gallium implementation uses shaders, this is less efficient and it's not possible to offload the complete decode pipe. I'm sceptical, I doubt this is going to work well on low-end GPUs.
Moreover, even the cheapest CPUs you can get nowadays (save for some of the remaining single-core surplus and netbook CPUs) are capable of decoding HD video at bluray bitrates just fine. You don't need to spend 200 bucks.
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Originally posted by brent View PostIt's easy to decode video with the ASIC (if you know how to), but that is not what is being used here. The Gallium implementation uses shaders, this is less efficient and it's not possible to offload the complete decode pipe. I'm sceptical, I doubt this is going to work well on low-end GPUs.
Moreover, even the cheapest CPUs you can get nowadays (save for some of the remaining single-core surplus and netbook CPUs) are capable of decoding HD video at bluray bitrates just fine. You don't need to spend 200 bucks.
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Originally posted by RealNC View PostCurrently not though. Distros don't ship multithreaded players. That stuff is still locked inside experimental Git and SVN branches. And with only one core, not even a Core I7 Extreme can decode high bitrate H.264.
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Originally posted by brent View PostIt's easy to decode video with the ASIC (if you know how to), but that is not what is being used here. The Gallium implementation uses shaders, this is less efficient and it's not possible to offload the complete decode pipe. I'm sceptical, I doubt this is going to work well on low-end GPUs.
Moreover, even the cheapest CPUs you can get nowadays (save for some of the remaining single-core surplus and netbook CPUs) are capable of decoding HD video at bluray bitrates just fine. You don't need to spend 200 bucks.
Granted, being able to use the proper decoding hardware of the video card would be preferred, but sadly that's the domain of blobs.
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Originally posted by mirv View PostGranted, being able to use the proper decoding hardware of the video card would be preferred, but sadly that's the domain of blobs.
Actually, an (un)official update from bridgman would be appreciated. Last time he mentioned this was in December and he said something about 6 months.
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Originally posted by mirv View PostI think the most interesting area for video decode accel is with that hardware that doesn't have a capable CPU - particularly HTPC systems. Low power CPUs have the benefit of not generating as much heat, so less fans and cooling required, and a quieter device.
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Originally posted by agd5f View PostBefore we had UVD (r1xx-r5xx), we used the 3D engine for video decode, so it's definitely viable.
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Originally posted by brent View PostH.264 MT is mainline in ffmpeg and will be merged very soon in libav (partly merged already).
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