[bug][vaapi][h264] The commit 7cbe08a930a132d84b4cf79953b00b074ec7a2a7 on certain video files leads to problems with VAAPI hardware decoding.

[Alex Deucher]

+ Leo, Thong

On Wed, Dec 7, 2022 at 3:43 PM Mikhail Gavrilov
<mikhail.v.gavrilov at gmail.com> wrote:
>
> On Wed, Dec 7, 2022 at 7:58 PM Alex Deucher <alexdeucher at gmail.com> wrote:
> >
> >
> > What GPU do you have and what entries do you have in
> > sys/class/drm/card0/device/ip_discovery/die/0/UVD for the device?
>
> I bisected the issue on the Radeon 6800M.
>
> Parent commit for 7cbe08a930a132d84b4cf79953b00b074ec7a2a7 is
> 46dd2965bdd1c5a4f6499c73ff32e636fa8f9769.
> For both commits ip_discovery is absent.
> # ls /sys/class/drm/card0/device/ | grep ip
> # ls /sys/class/drm/card1/device/ | grep ip
>
> But from verbose info I see that player for
> 7cbe08a930a132d84b4cf79953b00b074ec7a2a7 use acceleration:
> $ vlc -v Downloads/test_sample_480_2.mp4
> VLC media player 3.0.18 Vetinari (revision )
> [0000561f72097520] main libvlc: Running vlc with the default
> interface. Use 'cvlc' to use vlc without interface.
> [00007fa224001190] mp4 demux warning: elst box found
> [00007fa224001190] mp4 demux warning: STTS table of 1 entries
> [00007fa224001190] mp4 demux warning: CTTS table of 78 entries
> [00007fa224001190] mp4 demux warning: elst box found
> [00007fa224001190] mp4 demux warning: STTS table of 1 entries
> [00007fa224001190] mp4 demux warning: elst old=0 new=1
> [00007fa224d19010] faad decoder warning: decoded zero sample
> [00007fa224001190] mp4 demux warning: elst old=0 new=1
> [00007fa214007030] gl gl: Initialized libplacebo v4.208.0 (API v208)
> libva info: VA-API version 1.16.0
> libva error: vaGetDriverNameByIndex() failed with unknown libva error,
> driver_name = (null)
> [00007fa214007030] glconv_vaapi_x11 gl error: vaInitialize: unknown libva error
> libva info: VA-API version 1.16.0
> libva info: Trying to open /usr/lib64/dri/radeonsi_drv_video.so
> libva info: Found init function __vaDriverInit_1_16
> libva info: va_openDriver() returns 0
> [00007fa224c0b3a0] avcodec decoder: Using Mesa Gallium driver
> 23.0.0-devel for AMD Radeon RX 6800M (navi22, LLVM 15.0.4, DRM 3.42,
> 5.14.0-rc4-14-7cbe08a930a132d84b4cf79953b00b074ec7a2a7+) for hardware
> decoding
> [h264 @ 0x7fa224c3fa40] Using deprecated struct vaapi_context in decode.
> [0000561f72174de0] pulse audio output warning: starting late (-9724 us)
>
> And for 46dd2965bdd1c5a4f6499c73ff32e636fa8f9769 commit did not use
> acceleration:
> $ vlc -v Downloads/test_sample_480_2.mp4
> VLC media player 3.0.18 Vetinari (revision )
> [000055f61ad35520] main libvlc: Running vlc with the default
> interface. Use 'cvlc' to use vlc without interface.
> [00007fc7e8001190] mp4 demux warning: elst box found
> [00007fc7e8001190] mp4 demux warning: STTS table of 1 entries
> [00007fc7e8001190] mp4 demux warning: CTTS table of 78 entries
> [00007fc7e8001190] mp4 demux warning: elst box found
> [00007fc7e8001190] mp4 demux warning: STTS table of 1 entries
> [00007fc7e8001190] mp4 demux warning: elst old=0 new=1
> [00007fc7e8d19010] faad decoder warning: decoded zero sample
> [00007fc7e8001190] mp4 demux warning: elst old=0 new=1
> [00007fc7d8007030] gl gl: Initialized libplacebo v4.208.0 (API v208)
> libva info: VA-API version 1.16.0
> libva error: vaGetDriverNameByIndex() failed with unknown libva error,
> driver_name = (null)
> [00007fc7d8007030] glconv_vaapi_x11 gl error: vaInitialize: unknown libva error
> libva info: VA-API version 1.16.0
> libva info: Trying to open /usr/lib64/dri/radeonsi_drv_video.so
> libva info: Found init function __vaDriverInit_1_16
> libva info: va_openDriver() returns 0
> [00007fc7d40b3260] vaapi generic error: profile(7) is not supported
> [00007fc7d8a089c0] gl gl: Initialized libplacebo v4.208.0 (API v208)
> Failed to open VDPAU backend libvdpau_nvidia.so: cannot open shared
> object file: No such file or directory
> Failed to open VDPAU backend libvdpau_nvidia.so: cannot open shared
> object file: No such file or directory
> [00007fc7d89e4f80] gl gl: Initialized libplacebo v4.208.0 (API v208)
> [000055f61ae12de0] pulse audio output warning: starting late (-13537 us)
>
> So my bisect didn't make sense :(
> Anyway can you reproduce the issue with the attached sample file and
> vlc on fresh kernel (6.1-rc8)?
>
> Thanks!
>
> --
> Best Regards,
> Mike Gavrilov.