[PD] pix_record: recording at a fixed framerate

[Claude Heiland-Allen]

Hi Matteo,

I tend to use pix_write + writesf~ and then use ffmpeg to combine the 
images + audio.  You'll need a lot of spare hard disk space for the 
temporary image files if you choose TIFF though.  Runs 10x slower than 
realtime if I've got a heavy patch going (so don't start pd -rt if you 
want to use your computer for other things while rendering) but 
everything is in sync when it's all combined, the power of logical 
clocks.  I can send some patches/scripts if this is an option for you.

Matteo Sisti Sette wrote:
> Hi,
> 
> I'm trying to record a rendered image with [pix_record]; it works, but I 
> have a problem with the framerate.
> That is, I am using a framerate of 25fps in GEM, but the frames will 
> never be rendered and recorded at 25fps because they are too heavy to 
> process.

[snip]

> If there is no way to change the way [pix_record] writes fps 
> information, can you suggest me some software that can interprete the 
> stream of frames as a fixed-fps sequence of frames and rewrite the video 
> file with a fixed framerate?

Perhaps you could use GridFlow with its Gem bridge?

> (I have an old version of VirtualDub but it cannot read .mov files)

VirtualDub suggests Windows, I don't know if Windows can fifo, so maybe 
that option is out.  I think Avidemux2 is crossplatform and might be 
able to combine many images into a video file too.  Or maybe it could 
even fix the mov, I haven't tried.


Claude
-- 
http://claudiusmaximus.goto10.org