Image *CreateI420Image()
{
PlanarYCbCrImage *image = new RecyclingPlanarYCbCrImage(new BufferRecycleBin());
PlanarYCbCrData data;
data.mPicSize = mImageSize;
const uint32_t yPlaneSize = mImageSize.width * mImageSize.height;
const uint32_t halfWidth = (mImageSize.width + 1) / 2;
const uint32_t halfHeight = (mImageSize.height + 1) / 2;
const uint32_t uvPlaneSize = halfWidth * halfHeight;
// Y plane.
uint8_t *y = mSourceBuffer.Elements();
data.mYChannel = y;
data.mYSize.width = mImageSize.width;
data.mYSize.height = mImageSize.height;
data.mYStride = mImageSize.width;
data.mYSkip = 0;
// Cr plane.
uint8_t *cr = y + yPlaneSize + uvPlaneSize;
data.mCrChannel = cr;
data.mCrSkip = 0;
// Cb plane
uint8_t *cb = y + yPlaneSize;
data.mCbChannel = cb;
data.mCbSkip = 0;
// CrCb plane vectors.
data.mCbCrStride = halfWidth;
data.mCbCrSize.width = halfWidth;
data.mCbCrSize.height = halfHeight;
image->CopyData(data);
return image;
}
