1198315 - Firefox WebRTC cannot change resolution with media constraints

Status: RESOLVED INVALID

(Core :: WebRTC: Audio/Video, defect)

Description

[danny.perrone93]

User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.155 Safari/537.36

Steps to reproduce:

Make a getUserMedia call with media constraints specifying a resolution.
Using this demo for example: http://simpl.info/getusermedia/constraints/
Source code here: https://github.com/samdutton/simpl/blob/master/getusermedia/constraints/js/main.js

Choose 'QVGA' for qvgaConstraints (320x180)

Trying any combination or value for resolutions does not seem to change the value. 


Actual results:

Firefox requests hardware permission.
The webpage receives a video stream at the resolution of 640x480


Expected results:

Firefox requests hardware permission.
The webpage receives a video stream at the resolution of 320x180

Comment 1

[ovidiu boca[:Ovidiu]]

Use Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:45.0) Gecko/20100101 Firefox/45.0
Build id: 20151125030231

Hi,

I have tested this on Windows 7 with Nightly 45.0a1, and I can reproduce the problem.

Comment 2

[Randell Jesup [:jesup] (needinfo me)]

mandatory: { maxWidth: .... }} has never been supported by Firefox, and is not compliant with the getUserMedia spec.

Comment 3

[Randell Jesup [:jesup] (needinfo me)]

https://jsfiddle.net/9t3szw0L/ is an example for controlling resolution

Comment 4

[Jan-Ivar Bruaroey [:jib] (needinfo? me)]

The demo in comment 0 is old.

See updated demo here: https://webrtc.github.io/samples/src/content/getusermedia/resolution/
Src: https://github.com/webrtc/samples/blob/gh-pages/src/content/getusermedia/resolution/js/main.js