882993 - [A/V] Cannot play more than one video file in a single web page

Status: RESOLVED INVALID

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

Description

[leo.bugzilla.gecko]

I found this bug while i'm testing Bug 880587 

1.Open http://imps.tcl-ta.com/cailiang/media/content_e5.html
2.click "HTML5 Video Test" to test html5 video

There are four video files in a single page.
As I enter the page.
Fourth video files are start to play automatically using H/W codec.
First video files are played well by using S/W codec.

But...2nd, 3rd video files cannot be played because it cannot use H/W codec.
H/W codec is held by fourth video element.

Comment 1

[leo.bugzilla.gecko]

Hello, Sotaro.

What do you think about this problem?
Does it possibly need many changes to fix this problem?

Comment 2

[Sotaro Ikeda [:sotaro]]

(In reply to leo.bugzilla.gecko from comment #1)
> Hello, Sotaro.
> 
> What do you think about this problem?
> Does it possibly need many changes to fix this problem?

Sorry for late response. I am going to work for the bug from now. This change require some new features and need to change some sequences.

Comment 3

[Alex Keybl [:akeybl]]

This qualifies as a new feature, and needs to be followed up in email if we're going to block on this much change this late in the release.

Comment 4

[Sotaro Ikeda [:sotaro]]

Attachment: WIP patch for b2g18 - hw codec allocation arbitration

Not ready for review. Basic implementation complete. Needs to fix some bugs.

Comment 5

[Sotaro Ikeda [:sotaro]]

Attachment: WIP patch v2 for b2g18 - hw codec allocation coflict arbitration

fix a nit.

Comment 6

[Wayne Chang [:wchang]]

Retiring madai flag, setting a suitable target flag.

Comment 7

[Marvin Khoo [:Marvin_Khoo]]

not sure is related, have we tried on Firefox browser? guess this is not only b2g/Firefox OS issue.

Comment 8

[Sotaro Ikeda [:sotaro]]

This issues is only related to Firefox OS. Firefox OS uses hw codec for video decoding. By it, only one video element can get video codec at a time. If each video elements exist in different app/web content, the hw video codec resource is shared automatically. But if each video elements exist in same app/web content, there is no automatic mechanism to arbitrate hw video codec resource usage arbitration.

Comment 9

[Jason Smith [:jsmith]]

This has been around multiple releases, so we're not going to block on this.

Comment 10

[Sotaro Ikeda [:sotaro]]

The bug was for b2g.