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Issue 689670 link

Starred by 2 users
Status: WontFix
Owner: ----
Closed: Feb 2017
Cc:
█ hdodda@chromium.org
mflodman@chromium.org
sprang@chromium.org
brandtr@chromium.org
█ emadomara@chromium.org
terelius@chromium.org
webrtc-network-bugs@google.com
holmer@chromium.org
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 2
Type: Bug-Regression



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degraded video quality

Reported by fi...@appear.in, Feb 7 2017 
UserAgent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Ubuntu Chromium/55.0.2883.87 Chrome/55.0.2883.87 Safari/537.36

Steps to reproduce the problem:
not sure how to reproduce other than on my machine.
webrtc-internals dump from https://webrtc.github.io/samples/src/content/peerconnection/pc1/ is attached though. I saw bad resolution and framerate and grabbed a webrtc-internals dump. 

What is the expected behavior?
The bandwidth ramps up fast.

What went wrong?
The bandwidth takes a minute to ramp up to 2mbps. The video quality during ramp up is bad.

Originally discovered in a local-local appear.in call where the pixelattion was much more visible.

Switching that call to 720p resolution using ?hd increased both video quality and ramp up drastically.

The available send bandwidth in the dump starts at 11000 and increases by exactly 1000 per second / getStats call.

Did this work before? Yes 

Does this work in other browsers? N/A

Chrome version: 58.0.3000.4  Channel: canary
OS Version: 
Flash Version:
webrtc_internals_dump (25).txt
323 KB View Download

Comment 1 by fi...@appear.in, Feb 7 2017 

not an issue in 57.0.2987.21.

Possibly a dupe of https://bugs.chromium.org/p/chromium/issues/detail?id=687030 ?

Comment 2 by ajha@chromium.org, Feb 8 2017

Labels: Needs-Bisect Needs-Triage-M58

Comment 3 by guidou@chromium.org, Feb 8 2017

Components: -Blink>WebRTC Blink>WebRTC>Video

Comment 4 by guidou@chromium.org, Feb 8 2017

Components: Blink>WebRTC>Network

Comment 5 by hdodda@chromium.org, Feb 9 2017

Cc: hdodda@chromium.org
Labels: Needs-Feedback
Tested on Ubuntu 14.04 using chrome canary M58 #58.0.3006.0 and chrome version M57 #57.0.2987.21 and M58 #58.0.3004.3 and didn't observe any difference.

Attached screencast for reference.

@fippo-- Could you please check in latest chrome dev and also please provide us the expected result in clear steps or possible screencast , so that would help us in traiging the issue better.

Thanks!
webrtc.ogv
26.8 MB Download

Comment 6 by fi...@appear.in, Feb 9 2017 

58.0.3004.3 doesn't have that problem any longer. Which makes it more likely this is a duplicate of the bug linked.

Comment 7 by hdodda@chromium.org, Feb 10 2017

Status: WontFix (was: Unconfirmed)
As per comment #6 , closing this issue as this no longer exists. Please feel free to raise a new issue if you face any issues in latest chrome channels.

Thanks!
►

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