Originally posted by pvautrin
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AMD Releases Open-Source UVD Video Support
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Originally posted by Nille View PostYou don't need to Copy back the Data for an Overlay. And it has nothing todo with the Hardware or how the hardware decode the video.
My question is that whether the UVD overlay is of this kind - is it done in such a way, that the overlay can't be drawn over.
It was this way last I used some proper video accel (back on Windows 95 and some Matrox card IIRC) - you couldn't use both the acceleration and subtitles at the same time. HW limitation as I understand it, the video overlay was the topmost one, so nothing could draw over it.
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Originally posted by curaga View PostI know subtitles don't need it read back; that was an example about how some overlays are limited. They are also limited in the way that you can't render over them (to draw subtitles, for example).
My question is that whether the UVD overlay is of this kind - is it done in such a way, that the overlay can't be drawn over.
It was this way last I used some proper video accel (back on Windows 95 and some Matrox card IIRC) - you couldn't use both the acceleration and subtitles at the same time. HW limitation as I understand it, the video overlay was the topmost one, so nothing could draw over it.
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Originally posted by pvautrin View PostTim and team,
Thanks for this great milestone.
But as owner of rv635 (hd3650), I'm really curious to know what was the main issue in bringing up UVD1 as well. Is that due to testing and bug fixing or because of significant architecture differences? Given that UVD1 seems like a subset of UVD2, I'm really hoping for the former so there's no big IP review to go though...
Anyways, +1 for UVD1
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Originally posted by curaga View PostI know subtitles don't need it read back; that was an example about how some overlays are limited. They are also limited in the way that you can't render over them (to draw subtitles, for example).
My question is that whether the UVD overlay is of this kind - is it done in such a way, that the overlay can't be drawn over.
It was this way last I used some proper video accel (back on Windows 95 and some Matrox card IIRC) - you couldn't use both the acceleration and subtitles at the same time. HW limitation as I understand it, the video overlay was the topmost one, so nothing could draw over it.
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@agd5f
I read that as "subtitles work, if the player has code for that". Correct?
Then only two questions left:
- is the new firmware compatible with old DRM? Ie, can the uvd-supporting firmware be shipped without any regression when run on older kernel+mesa?
- it appears that on Windows, using UVD forces a certain core clock*. Does this limitation also apply on linux?
* http://www.rage3d.com/board/showthread.php?t=33989470
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