https://bugs.freedesktop.org/show_bug.cgi?id=97988
Bug ID: 97988
Summary: [radeonsi] playing back videos with VDPAU exhibits
deinterlacing/anti-aliasing issues not visible with
VA-API
Product: Mesa
Version: git
Hardware: x86-64 (AMD64)
OS: Linux (All)
Status: NEW
Severity: normal
Priority: medium
Component: Drivers/Gallium/radeonsi
Assignee: dri-devel at lists.freedesktop.org
Reporter: kai at dev.carbon-project.org
QA Contact: dri-devel at lists.freedesktop.org
Created attachment 126902
--> https://bugs.freedesktop.org/attachment.cgi?id=126902&action=edit
mpv --hwdec=vdpau --vo=opengl-hq
I noticed, that when I play videos with mpv using VDPAU I'm getting an image
that looks like deinterlacing/anti-aliasing is not working, making fine
structures/patterns or text look ugly/unreadable. Playing the same video with
the same stack but using VA-API doesn't exhibit this issue.
Attached you'll find a screenshot taken with VDPAU when playing a video using
mpv --hwdec=vdpau --vo=opengl-hq
The only difference for the VA-API playback is using "--hwdec=vaapi". I would
say that this is a regression, but I can't remember when it started. :-(
The stack showing this issue is (Debian testing as a base):
GPU: Hawaii PRO [Radeon R9 290] (ChipID = 0x67b1)
Mesa: Git:master/e4b585f009
libdrm: 2.4.70-1
LLVM: SVN:trunk/r282761 (4.0 devel)
X.Org: 2:1.18.4-1
Linux: 4.7.5
Firmware: firmware-amd-graphics/20160824-1
libclc: Git:master/88b82a6f70
DDX (amdgpu): 1.1.2-1
Let me know, if you need anything else.
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