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Issue 891972 link

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Issue metadata

Status: Verified
Owner:
Closed: Oct 12
Cc:
EstimatedDays: ----
NextAction: ----
OS: Chrome
Pri: 1
Type: Bug



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video_PlaybackPerf reports 0 dropped frames if no frame is decoded

Project Member Reported by hiroh@chromium.org, Oct 4

Issue description

Between 71.11067.0.0 and 71.11072.0.0, we run into the regression.
Playback is not started and thus no frames is decoded.

https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICQ57_P6QsM
https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICQ15SPswoM

video_PlaybackPerf even reports performance values;
# of dropped frames is 0, dropped frame rate is 100%, and cpu usage is computed correctly but quite low because no playback is being performed.

video_PlaybackPerf should not report any values in the case.
 
Cc: deanliao@google.com
Issue 892981 has been merged into this issue.
Project Member

Comment 3 by bugdroid1@chromium.org, Oct 10

The following revision refers to this bug:
  https://chromium.googlesource.com/chromiumos/third_party/autotest/+/c41d75034865205295895fd0d50be844fbf0e360

commit c41d75034865205295895fd0d50be844fbf0e360
Author: Hirokazu Honda <hiroh@chromium.org>
Date: Wed Oct 10 04:14:10 2018

video_PlaybackPerf: Fail the test if the number of decoded frames is too small

If playback is not started and thus no frames is decoded, video_PlaybackPerf
reports the peformance values as follows; the number of dropped frames is 0,
dropped frame rate is 100%, cpu usage is computed correctly but quite low due to
no playback.

video_PlaybackPerf should not report any values and fails in the case.

BUG= chromium:891972 
TEST=video_PlaybackPerf.{h264, vp8, vp9.4k.60} on panther

Change-Id: Iea6cfc124fefcf97b8b3d9ff80d3ca27c983b502
Reviewed-on: https://chromium-review.googlesource.com/1260662
Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com>
Tested-by: Hirokazu Honda <hiroh@chromium.org>
Reviewed-by: Shuo-Peng Liao <deanliao@google.com>

[modify] https://crrev.com/c41d75034865205295895fd0d50be844fbf0e360/client/site_tests/video_PlaybackPerf/video_PlaybackPerf.py

Status: Verified (was: Started)
Since this change was landed, there looks no failures due to it. Close the issue.

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