| Bug ID | 108036 |
|---|---|
| Summary | VA-API implementation reports support for unsupported endpoints |
| Product | Mesa |
| Version | 18.2 |
| Hardware | Other |
| OS | Linux (All) |
| Status | NEW |
| Severity | normal |
| Priority | medium |
| Component | Drivers/Gallium/radeonsi |
| Assignee | dri-devel@lists.freedesktop.org |
| Reporter | notkurufu@cock.li |
| QA Contact | dri-devel@lists.freedesktop.org |
Videos encoded via VA-API on amd hardware using the h264 High profile end up corrupt. This appears to be a known flaw and unsupported by mesa drivers. My reference for this is here: https://bugs.freedesktop.org/show_bug.cgi?id=104920#c8 Notably the mesa team claims that the issue is with applications using an unsupported profile and that applications should query VA-API for supported features. However it can be see with `vainfo` on AMD hardware that h264 High profile support IS advertised by the drivers. So the error is not in the applications which correctly query the information. But in the drivers returning false information. An example of vainfo output on AMD hardware advertising h264 High profile support. I also have a source video and resultant reencoding at high profile which is corrupt which is the same issue in the earlier bug where it was claimed it was not supported. $ vainfo --display drm libva info: VA-API version 1.1.0 libva info: va_getDriverName() returns 0 libva info: Trying to open /usr/lib64/dri/radeonsi_drv_video.so libva info: Found init function __vaDriverInit_1_1 libva info: va_openDriver() returns 0 vainfo: VA-API version: 1.1 (libva 2.1.0) vainfo: Driver version: Mesa Gallium driver 18.1.6 for AMD Radeon (TM) RX 480 Graphics (POLARIS10, DRM 3.26.0, 4.18.5-200.fc28.x86_64, LLVM 6.0.1) vainfo: Supported profile and entrypoints VAProfileMPEG2Simple : VAEntrypointVLD VAProfileMPEG2Main : VAEntrypointVLD VAProfileVC1Simple : VAEntrypointVLD VAProfileVC1Main : VAEntrypointVLD VAProfileVC1Advanced : VAEntrypointVLD VAProfileH264ConstrainedBaseline: VAEntrypointVLD VAProfileH264ConstrainedBaseline: VAEntrypointEncSlice VAProfileH264Main : VAEntrypointVLD VAProfileH264Main : VAEntrypointEncSlice VAProfileH264High : VAEntrypointVLD VAProfileH264High : VAEntrypointEncSlice VAProfileHEVCMain : VAEntrypointVLD VAProfileHEVCMain : VAEntrypointEncSlice VAProfileHEVCMain10 : VAEntrypointVLD VAProfileJPEGBaseline : VAEntrypointVLD VAProfileNone : VAEntrypointVideoProc
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