bugGnash - The GNU Flash player - Bugs: bug #34867, Incorrect frame rate from...

 
 

bug #34867: Incorrect frame rate from dump-gnash

Submitter:  Benjamin Wolsey <bwy>
Submitted:  Sun 20 Nov 2011 10:05:18 AM UTC
   
 
Category:  gui Severity:  4 - Important
Release:  master Status:  None
Privacy:  Public Assigned to:  None
Open/Closed:  Open
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Sun 20 Nov 2011 10:05:18 AM UTC, original submission:  

The frame rate of dump-gnash is limited to a multiple of its -d argument.

The reason is that dump-gnash polls the core every x milliseconds, where x is specified by -d (10 by default). If it finds it should advance, it does so and marks the time of the last advance to the current time.

If the requested frame rate is 24 fps (a frame approximately every 42ms), dump-gnash realizes every 50 ms that it should advance. The time of the last advance isn't set to the correct 42ms point, but rather to the current 50ms point, so that the effective frame rate is 20fps rather than 24.

Benjamin Wolsey <bwy>
Group Member

 

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