Question

如何将YUV转换为RGB，最后变为UIImage显示出来

Answer 1

-(void)decodeAndShow : (char*) buf length:(int)len
{

int ret = h264_decode(buf , len, (char*)pFrameRGB);
m_decodeFinish = NO;

//NSLog(@"decode ret = %d readLen = %d\n", ret, nFrameLen);
if(ret > 0)
{
CGBitmapInfo bitmapInfo = kCGBitmapByteOrderDefault;
CFDataRef data = CFDataCreateWithBytesNoCopy(kCFAllocatorDefault, pFrameRGB, nWidth*nHeight*3,kCFAllocatorNull);
CGDataProviderRef provider = CGDataProviderCreateWithCFData(data);
CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();

CGImageRef cgImage = CGImageCreate(nWidth,
nHeight,
8,
24,
nWidth*3,
colorSpace,
bitmapInfo,
provider,
NULL,
YES,
kCGRenderingIntentDefault);
CGColorSpaceRelease(colorSpace);
//UIImage *image = [UIImage imageWithCGImage:cgImage];
UIImage* image = [[UIImage alloc]initWithCGImage:cgImage]; //crespo modify 20111020
CGImageRelease(cgImage);
CGDataProviderRelease(provider);
CFRelease(data);
[self performSelectorOnMainThread:@selector(updateView:) withObject:image waitUntilDone:YES];
[image release];
}
m_decodeFinish = YES;
return;
}

-(void)updateView:(UIImage*)newImage
{
//NSLog(@"显示新画面");
m_videoView.image = newImage;
}