Re: [Gnash-dev] Feature request: The ability to change the frame-rate

[Daniel Cook]

Hi Craig

I thought it probably would be possible to set the frame rate in the encoder, however (a) I wonder whether going from (say) a rawvideo with 39fps to 30fps might be worse quality than simply setting dump-gnash to 30fps (as 30/39 is not a whole number) (b) as the rawvideo files are really massive then setting all other things being equal, recording (say) 30fps or 24fps could reduce the hard disk space required.

(By the way, I'm very much a newbie to participating in open-source projects).

Regards,

Dan.

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From: Craig Kelley <address@hidden>
To: Daniel Cook <address@hidden>
Cc: address@hidden
Sent: Mon, 25 October, 2010 21:20:01
Subject: Re: [Gnash-dev] Feature request: The ability to change the frame-rate

On Mon, 25 Oct 2010, Daniel Cook wrote:

> I would like to submit the following feature request: the ability to change the
> output frame rate by means of a command line option, subject to feasibility. I
> would find this useful when running "dump-gnash". As things stand, the desired
> frame rate is 100 fps however it outputs at 39 - 41fps depending on the video,
> however a frame rate of 25 or 30 fps would suffice for many of my videos, would
> create smaller videos and I am not an expert, however I believe that some video
> formats may be restricted to 25fps anyway.

That can be handled directly in the encoder.  Tell it that the output FPS should be 24 or 30, or whatever you like (eg, -ofps 24000/1001 in mencoder).  The Gnash dumper simply spits out what the renderer would have sent to the window -- it should not affect the FPS of your encoded video.

--
Craig Kelley
http://inconnu.islug.org/~ink finger same server for PGP block