Opened 8 years ago

Closed 8 years ago

Last modified 7 years ago

#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


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.

See discussion 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 Carl Eugen Hoyos, 8 years ago

Keywords: Intel removed
Resolution: invalid
Status: newclosed

Please either send the patches to the ffmpeg-devel mailing list for a proper review or ask Hendrik to commit them himself.

comment:2 by Carl Eugen Hoyos, 7 years ago

Keywords: dxva2 added; dxva removed
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