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Issue 776663 link

Starred by 2 users
Status: WontFix
Owner: ----
Closed: Oct 2017
Components:
EstimatedDays: ----
NextAction: ----
OS: Windows
Pri: 2
Type: Bug-Regression



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Display wrong duration for AAC video files with VBR mode

Reported by lesleyde...@gmail.com, Oct 20 2017 
UserAgent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/62.0.3202.62 Safari/537.36

Example URL:

Steps to reproduce the problem:
1. create the AAC audio files with VBR mode (like the two attached files)
2. directing to them in an html file
3. open this webpage in Chrome

What is the expected behavior?

What went wrong?
The attached are created with duration nearly 31s, but displayed in Chrome with wrong duration.

Did this work before? Yes 

Is it a problem with Flash or HTML5? N/A

Does this work in other browsers? No
 Opera  Edge

Chrome version: 62.0.3202.62  Channel: stable
OS Version: 10.0
Flash Version: 

Contents of chrome://gpu:
1.aac
312 KB Download
2.aac
140 KB Download
test-aac-vbr.PNG
8.8 KB View Download

Comment 1 by lesleyde...@gmail.com, Oct 20 2017

test-aac-vbr.html
714 bytes View Download

Comment 2 by manoranj...@chromium.org, Oct 20 2017

Labels: Needs-Triage-M62

Comment 3 by dalecur...@chromium.org, Oct 20 2017

Status: WontFix (was: Unconfirmed)
The adts header doesn't provide a way to embed the duration so it must be estimated. If you want accurate duration information with VBR media it needs to be in a container like mp4.
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