walterfan / webrtc_stats

webrtc internals dump file analyzer

Overview

It is a python script to parse the dump file of webrtc-internals

Quick Start

$ virtualenv -p python3 venv
$ source venv/bin/activate
$ pip install -r requirements.txt
$ fab -l

Metrics

When we open chrome://webrtc-internals/ in chrome, or open edge://webrtc-internals/ in edge, or open about:webrtc in firefox

We can see the following info and metrics

• ICE connection state
• Signaling state
• ICE candidate grid
• ICE connection candidate pair and related metrics
• Inbound RTP and remote inbound RTP stream metrics
• Outbound RTP and remote outbound RTP stream metrics

We need pay more attention to

• Candidate-pair
• Local-candidate
• Remote-candidate
• Inbound-rtp
• Outbound-rtp
• Opus codec: maxaveragebitrate, maxplaybackrate, stereo, useinbandfec, etc.
• H264 codec: level-asymmetry-allowed, max-br, max-dpb, max-fps, max-fs, max-mbps, packetization-mode, profile-level-id, id, etc.

Front end page

A simple flask based app

virtualenv -p python3 venv
source venv/bin/activate
pip install -r requirements.txt

source ./venv/bin/activate
export FLASK_DEBUG=1
export FLASK_APP=app.py
flask run --host=0.0.0.0 --port=8000 &