The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/fc0be9a110adbda95a0367cdecafd46713fbcccb

commit fc0be9a110adbda95a0367cdecafd46713fbcccb
Author: chfremer <chfremer@chromium.org>
Date: Thu May 04 00:37:59 2017

Add more video capture log messages to WebRTC log

Produce a WebRTC log message when:
* starting to use gpu jpeg decoder
* received first decoded frame from gpu jpeg decoder
* gpu jpeg decoder fails
* first frame received at VideoCaptureController

BUG=717772

Review-Url: https://codereview.chromium.org/2860573008
Cr-Commit-Position: refs/heads/master@{#469220}

[modify] https://crrev.com/fc0be9a110adbda95a0367cdecafd46713fbcccb/content/browser/renderer_host/media/in_process_video_capture_device_launcher.cc
[modify] https://crrev.com/fc0be9a110adbda95a0367cdecafd46713fbcccb/content/browser/renderer_host/media/video_capture_controller.cc
[modify] https://crrev.com/fc0be9a110adbda95a0367cdecafd46713fbcccb/content/browser/renderer_host/media/video_capture_controller_unittest.cc
[modify] https://crrev.com/fc0be9a110adbda95a0367cdecafd46713fbcccb/content/browser/renderer_host/media/video_capture_gpu_jpeg_decoder.cc
[modify] https://crrev.com/fc0be9a110adbda95a0367cdecafd46713fbcccb/content/browser/renderer_host/media/video_capture_gpu_jpeg_decoder.h

Changing status to assigned since this bug has ann owner.

Update on this: I had left this issue open, because I was planning to land a second CL with more logging. After preparing the CL [1], I realized that the extra logs, would not actually make it to the WebRTC logs, because the log uploader is not connected as a listener until an actual call session is started.

As a potential approach around this I considered storing the logs temporarily in memory until a call is started, but that does not seem like a good solution, because it would accumulate logs indefinitely even in cases where a Hangouts/Meets call is never started.

A slightly less bad apporoach would be to collect a limited amount of logs in a circular buffer, but that still seems super wasteful for cases where a Hangouts/Meets call is never started.

Any ideas on this? If I can't find a good solution, I will close this issue and abandond the CL [1].

[1] https://chromium-review.googlesource.com/c/chromium/src/+/644570