GPU YUV to RGB. Worth the effort?

Posted by Jaime Pardos on Stack Overflow See other posts from Stack Overflow or by Jaime Pardos
Published on 2010-03-26T09:50:39Z Indexed on 2010/03/26 9:53 UTC
Read the original article Hit count: 365

Filed under:

gpu

|

GPGPU

|

yuv

|

rgb

Hello,

I have to convert several full PAL videos (720x576@25) from YUV 4:2:2 to RGB, in real time, and probably a custom resize for each. I have thought of using the GPU, as I have seen some example that does just this (except that it's 4:4:4 so the bpp is the same in source and destiny)-- http://www.fourcc.org/source/YUV420P-OpenGL-GLSLang.c

However, I don't have any experience with using GPU's and I'm not sure of what can be done. The example, as I understand it, just converts the video frame to YUV and displays it in the screen.

Is it possible to get the processed frame instead? Would it be worth the effort to send it to the GPU, get it transformed, and sending it again to main memory, or would it kill performance?

Being a bit platform-specific, assuming I work on windows, is it possible to get an OpenGL or DirectDraw surface from a window so the GPU can draw directly to it?

© Stack Overflow or respective owner

Related posts about gpu

CUDA: Memory copy to GPU 1 is slower in multi-GPU

as seen on Stack Overflow - Search for 'Stack Overflow'
My company has a setup of two GTX 295, so a total of 4 GPUs in a server, and we have several servers. We GPU 1 specifically was slow, in comparison to GPU 0, 2 and 3 so I wrote a little speed test to help find the cause of the problem. //#include <stdio.h> //#include <stdlib.h> //#include… >>> More
Software for monitoring/measuring GPU temperature (WinXP/7)

as seen on Super User - Search for 'Super User'
Are there currently any programs available for monitoring/measuring GPU temperature? Something preferably free, and for either Windows XP and Windows 7. Thanks in advance! >>> More
Port scientific software to GPU and publish it

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, let's say that I am a physicist and that I am the master of the universe when it comes to port salready existing oftware to GPU's with 100x or more speedups. Let's say that I find that some other scientist, which does not know how to program GPU, publishes the Open Source code in his/her website… >>> More
Intel Merges GPU, CPU for Netbooks

as seen on Internet.com - Search for 'Internet.com'
The move to integrated CPU and GPU continues as Intel brings the technology down to the low-end netbook segment. >>> More
Yellow Dog Enterprise Linux for GPU computing

as seen on Internet.com - Search for 'Internet.com'
<b>The H Open:</b> "The Japanese Fixstars Corporation, which specialises in software for the Cell processors, has announced the release of Yellow Dog Enterprise Linux (YDEL) 6.2 for CUDA, the first enterprise Linux OS optimised for GPU computing." >>> More

Related posts about GPGPU

GPGPU

as seen on Daniel Moth - Search for 'Daniel Moth'
WhatGPU obviously stands for Graphics Processing Unit (the silicon powering the display you are using to read this blog post). The extra GP in front of that stands for General Purpose computing.So, altogether GPGPU refers to computing we can perform on GPU for purposes beyond just drawing on the screen… >>> More
gpgpu vs. physX for physics simulation

as seen on Game Development - Search for 'Game Development'
Hello First theoretical question. What is better (faster)? Develop your own gpgpu techniques for physics simulation (cloth, fluids, colisions...) or to use PhysX? (If i say develop i mean implement existing algorithms like navier-strokes...) I don't care about what will take more time to develop… >>> More
Financial applications on GPGPU

as seen on Stack Overflow - Search for 'Stack Overflow'
I want to know what sort of financial applications can be implemented using a GPGPU. I'm aware of Option pricing/ Stock price estimation using Monte Carlo simulation on GPGPU using CUDA. Can someone enumerate the various possibilities of utilizing GPGPU for any application in Finance domain, >>> More
Best approach for GPGPU/CUDA/OpenCL in Java?

as seen on Stack Overflow - Search for 'Stack Overflow'
General-purpose computing on graphics processing units (GPGPU) is a very attractive concept to harness the power of the GPU for any kind of computing. I'd love to use GPGPU for image processing, particles, and fast geometric operations. Right now, it seems the two contenders in this space are CUDA… >>> More
GPGPU programming with OpenGL ES 2.0

as seen on Stack Overflow - Search for 'Stack Overflow'
I am trying to do some image processing on the GPU, e.g. median, blur, brightness, etc. The general idea is to do something like this framework from GPU Gems 1. I am able to write the GLSL fragment shader for processing the pixels as I've been trying out different things in an effect designer app… >>> More