Re: Software Frame Playback

On Mon, 22 Oct 2007, Alan Jones wrote:

> Hi All,
>
> We're looking for a software based player for image sequences. Just
> need to be a basic read frame disc and play type arrangement, no need
> for edit lists etc. Framecycler's cheap version insists on caching to
> ram, which we don't want, but DDS is a bit over the top for playback.

GraphicsMagick and ImageMagick provide an 'animate' command which is 
able to animate very short 1920x1080 sequences in "real time". 
Unfortunately, playback is accomplished by buffering to RAM.  RAM 
quickly runs out so you need a 64-bit system with a lot of RAM in 
order to handle playback for 30 seconds.  Time is required to read the 
frames, although frames are initially shown in close to real-time 
while they are converted to X11 images, after which the sequence 
repeats over and over.  There is no support for audio and timing is 
imprecise so synchronization would be a real problem. You will 
definitely want a "Q8" build even though it may sacrifice a little bit 
of image quality.

Real time playback directly from uncompressed disk files is quite 
challenging and requires quite robust hardware and software optimized 
specifically for that task.

Bob
======================================
Bob Friesenhahn
[email protected], http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/


-------------------------------------------------------------------------
This SF.net email is sponsored by: Splunk Inc.
Still grepping through log files to find problems?  Stop.
Now Search log events and configuration files using AJAX and a browser.
Download your FREE copy of Splunk now >> http://get.splunk.com/