1330647 - Video dimension info rendered incorrectly

Status: NEW

(Firefox :: Page Info Window, defect)

Description

[Mikael Eiman]

Attachment: Skärmavbild 2017-01-12 kl. 14.57.37.png

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:50.0) Gecko/20100101 Firefox/50.0
Build ID: 20161208153507

Steps to reproduce:

View a video, e.g. http://techslides.com/demos/sample-videos/small.mp4

Press cmd-i to show page info.

Switch to media tab, select the video.


Actual results:

The video dimension is rendered as "¤¤¤px × ¤¤¤px".


Expected results:

The video dimension should be rendered as the actual size "480px × 120px" (or whatever the size is in the sample video).

Comment 1

[Cosmin Muntean [:cmuntean], Ecosystem QA]

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:50.0) Gecko/20100101 Firefox/50.0
Firefox: 50.1.0, Build ID: 20161208153507

I have managed to reproduce this issue on the latest Firefox (50.1.0) release and latest Nightly (53.0a1) build on Mac Os 10.11 and also on Windows 7. 

I have tested on a Firefox en-us build and the video dimensions are displayed as "NaNpx x NaNpx". For testing this I have used the provided URL in comment 0 and also with another video: https://goo.gl/WVOzft.
Here is a screenshot with the issue: https://goo.gl/uvMynM.

The dimensions were correctly displayed on Firefox 42.0a1. I have performed a regression and here are the results: 
Last good revision: 2ee9895e032c (2015-07-29)
First bad revision: 62469b20ec84 (2015-07-30)
Pushlog:
https://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=2ee9895e032c&tochange=62469b20ec84

Comment 2

[Julien Cristau [:jcristau] (back April 22)]

Too late for firefox 52, mass-wontfix.

Comment 3

[Simon Mainey]

:florian Duplicate of Bug 1327606 - which also mentions a more recent example of returning NaN