#3396 closed enhancement (invalid)
Intel DXVA2 H.264 Improvements for SNB GPUs
| Reported by: | Anton Fedchin | Owned by: | |
|---|---|---|---|
| Priority: | normal | Component: | avcodec |
| Version: | git-master | Keywords: | dxva2 h264 |
| Cc: | Blocked By: | ||
| Blocking: | Reproduced by developer: | no | |
| Analyzed by developer: | no |
Description
There are a set of patches for add some improvements for SandyBridge/IvyBridge Intel GPUs. This still actual for SNB GPU. The latest drivers for IVB/Haswell doesn't include the old DXVADDI_Intel_ModeH264_E device and doesn't experience the issue but SNB still.
http://patches.libav.org/patch/35320/
http://patches.libav.org/patch/35321/
See discussion https://lists.libav.org/pipermail/libav-devel/2013-March/043945.html for more info.
The main issue is h264 with refs > 11 decoded on DXVADDI_Intel_ModeH264_E device with artifacts. And solution is use standard Microsoft H264 device DXVA2_ModeH264_E but decoding with Microsoft H264 on SNB will no work without this improvements.
This still actual for lastest git-master.
Change History (2)
comment:1 by , 10 years ago
| Keywords: | Intel removed |
|---|---|
| Resolution: | → invalid |
| Status: | new → closed |
comment:2 by , 9 years ago
| Keywords: | dxva2 added; dxva removed |
|---|
Note:
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Please either send the patches to the ffmpeg-devel mailing list for a proper review or ask Hendrik to commit them himself.