[vlc] Re: measure dropped frame rates; what happens when a frame drops?

[Benjamin Pracht]

On Mon, Mar 14, 2005, Eric Jonas wrote :
> 
> Hello! I'm using VLC under OSX; I have two questions: 
> 
> 1. If I play a video, is there any way to get the number of dropped
> frames?

Well, this should be displayed as debug message in the Window->info dialog... 

> 2. What exactly happens when you drop a frame? 
> 
> 

AFAIK, the previous frame is only remplced when a new one is decoded, so
that would be behaviour 1

> We're trying to present visual stimuli to a fly while recording neural
> data, and so it's really important to control the frame dropping
> behavior. If I have a video segment consisting of frames A-Z, and for
> some reason frame Q is "dropped", does this mean :
>    1. frame P is shown for twice as long
>    2. frame R is show for twice as long
>    3. Some combination of frames P and R are shown during Q's time
>    window
>    4. the interval for Q is simply skipped, and the video has a duration
>    of 25 frames instead of 26? 
> 
-- 
Benjamin Pracht

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