939488 - [Power] signal-searching.png has many more frames then needed

Status: RESOLVED WONTFIX

(Firefox OS Graveyard :: Gaia::System, defect)

Description

[Benoit Girard (:BenWa)]

My device can't proper connect and the status bar is playing signal-searching.png continuously causing my device to run at 30 FPS to update an animation that only appears to require maybe 4-5 FPS. If the user is stuck in a state where the device can't acquire a signal we will be burning the battery playing this animation at 30 FPS. I don't have tools to inspect a APNG so I can't provide exact details.

I suggest that we replace this asset with something that updates at ~2 FPS or so.

Comment 1

[Glenn Randers-Pehrson]

According to bug #896231, this file was replaced with a GIF several months ago. I don't know what the framing rate is in the GIF.

Comment 2

[Benoit Girard (:BenWa)]

It's definitively still there on master.

Comment 3

[Glenn Randers-Pehrson]

Yes it appears that only the 1.5x was turned into a GIF.  The GIF has a framing rate of around 15 FPS. The 16x16 PNG has 35 frames with 3 colors (black, gray-102, and white) and 4 alpha levels.  I don't have APNG-inspecting tools either, but will get one and have a look at the details.

Comment 4

[Glenn Randers-Pehrson]

Attachment: signal-searching-1.0-2fps.png

Reduced number of frames from 35 to 5 and framing rate from 100/7 to 2

Comment 5

[Benoit Girard (:BenWa)]

Looks much better here :)

Comment 6

[Glenn Randers-Pehrson]

Attachment: signal-searching-1.0-2fps.png

Revised animation, 100/49 fps instead of 100/50 to match original framing rate, recompressed with zopfli to save a few bytes.

Comment 7

[BMO Automation]

Firefox OS is not being worked on