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Issue 891422 link

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Issue metadata

Status: Assigned
Owner:
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Chrome
Pri: 1
Type: Bug



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Various failures of video_ChromeHWDecodeUsed on multiple boards

Project Member Reported by agawronska@chromium.org, Oct 2

Issue description

Builders: tricky-chrome-pfq, peppy-chrome-pfq

video_ChromeHWDecodeUsed.h264
ERROR: Expect Media.GpuVideoDecoderInitializeStatus has OK (0). Histogram: {15: 1}

video_ChromeHWDecodeUsed.vp9
ERROR: Expect Media.GpuVideoDecoderInitializeStatus has OK (0). Histogram: {15: 1}

 
There were also some video decoding cheets tests failures (idk if related):
https://bugs.chromium.org/p/chromium/issues/detail?id=891415
Owner: deanliao@chromium.org
Status: Assigned (was: Untriaged)
Will take a look.
Media.GpuVideoDecoderInitializeStatus returns DECODER_ERROR_NOT_SUPPORTED (15). Something is wrong. Bisecting.
Status: Verified (was: Assigned)
Thanks to Hiro's co-investigation. The culprit is https://chromium-review.googlesource.com/c/chromium/src/+/1170707
and the fix is
https://chromium-review.googlesource.com/c/chromium/src/+/1256387

Verified on a cyan DUT.
Thanks deanliao and hiroh for investigating and digging into this!
Cc: khmel@chromium.org agawronska@chromium.org
 Issue 891415  has been merged into this issue.
Components: OS>Kernel>Video
Labels: -Pri-1 OS-Chrome Pri-2
Status: Assigned (was: Verified)
The devices reported in this bug do not use V4L2 for video decode, while the fix mentioned in comment #6 suggests a fix that is specific to V4L2. Reopening.

Also, we just saw a similar failure on samus on 11151.2.0:
http://ubercautotest.corp.google.com/tko/retrieve_logs.cgi?job=/results/248394941-chromeos-test/chromeos6-row2-rack2-host9
Is there any new failure today?
The fix #6 makes sense, even though they are V4L2 specific.
The V4L2 change breaks even for intel devices, since intel devices tries to initialize V4L2VDA/V4L2SVDA first.
If something wrong happens in their initialization, somehow software fallback is used.
Labels: -Pri-2 videoshortlist Pri-1
I am seeing a flaky test on Eve-tot-chrome-pfq-informational for video_ChromeHWDecodeUsed. However the exception is slighlty different:

video_ChromeHWDecodeUsed.h264           ERROR: Expect Media.GpuVideoDecoderInitializeStatus has OK (0). Histogram: {}

Is this related?

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