RFR: 8169501: GIF animation is too fast

[Nir Lisker]

On Tue, 15 Sep 2020 06:41:29 GMT, Bhawesh Choudhary <bchoudhary at openjdk.org> wrote:

>> This is pending response to comments above.
>
> 10ms![10ms](https://user-images.githubusercontent.com/4208131/93172831-3c9fcb80-f749-11ea-93ee-46b58ecff4c3.gif)
>                  
> 11ms![11ms](https://user-images.githubusercontent.com/4208131/93172833-3dd0f880-f749-11ea-8fa7-5cf2f3cfdcdc.gif)
>                  12ms![12ms](https://user-images.githubusercontent.com/4208131/93172834-3e698f00-f749-11ea-92ae-24b3087758d2.gif)
>                  15ms![15ms](https://user-images.githubusercontent.com/4208131/93172836-3e698f00-f749-11ea-9b9b-15c5f21dd5af.gif)
> ______________
> 19ms![19ms](https://user-images.githubusercontent.com/4208131/93172837-3f022580-f749-11ea-84be-7adc712bf230.gif)
>                  20ms![20ms](https://user-images.githubusercontent.com/4208131/93172839-3f9abc00-f749-11ea-8d5d-98b4ae131546.gif)
>                  21ms![21ms](https://user-images.githubusercontent.com/4208131/93172841-3f9abc00-f749-11ea-9b50-0cb5aa56b525.gif)
>                  40ms![40ms](https://user-images.githubusercontent.com/4208131/93172843-40335280-f749-11ea-8572-5bcfae11e28f.gif)
>                   ______________
> 75ms![75ms](https://user-images.githubusercontent.com/4208131/93172846-40cbe900-f749-11ea-8cc2-e20d2ce74947.gif)
>                 
> Original![gif](https://user-images.githubusercontent.com/4208131/93172848-41647f80-f749-11ea-88a9-429fa956e428.gif)
> Without the fix, gif animation speed matches for all interval gifs with all other browser (Which includes firefox,
> safari, chrome). Only animation speed for gif file which is attached in issue doesn't match. javafx webkit plays it
> faster. Imageview plays everything at its original speed. No clamping happens here.

Is this related to https://bugs.openjdk.java.net/browse/JDK-8209560?

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PR: https://git.openjdk.java.net/jfx/pull/221