Video texture via AVCaptureSession and blitFromMemory

[mannam]

Hi all,

I'm using Ogre 1.7.3 and trying to copy the iPhone camera video to texture, using AVCaptureSession and HardwarePixelBuffer::blitFromMemory().

I got 2 problems with this approach:

1. Once blitFromMemory is called, the whole screen is stretched, as if the frame buffer is resized to 1024x512 and the screen can only display top-left portion. I guess it's related to AVCaptureSession data is 640x480 and the texture is 1024x512 (power of 2 limitation). With this method, the video texture is blank although there's no error.

2. If I provide a 640x480 dstBox to blitFromMemory, I get the "data.getWidth() != data.rowPitch" exception (OgreGLESHardwarePixelBuffer.cpp line 377).

It works if I copy pixel by pixel, but it is very slow.

Any suggestions? Thanks.

Man

[mannam]

Sorry for bumping this, because blitFromMemory is still has problem in Ogre 1.8 GLES2...

When I do blitFromMemory with scaling in GLES2, GLES2TextureBuffer::blitFromTexture() will be called. But this function is not yet implemented (It says "todo - add a shader attach..."). I'd like to know will Ogre team work on this soon?

Thanks,
Man