internal void CopyPlanes(NvGpuVmm vmm, SurfaceOutputConfig outputConfig)
{
switch (outputConfig.PixelFormat)
{
case SurfacePixelFormat.Rgba8: CopyPlanesRgba8(vmm, outputConfig); break;
case SurfacePixelFormat.Yuv420P: CopyPlanesYuv420P(vmm, outputConfig); break;
default: ThrowUnimplementedPixelFormat(outputConfig.PixelFormat); break;
}
}
private void CopyPlanesRgba8(GpuContext gpu, SurfaceOutputConfig outputConfig)
{
FFmpegFrame frame = FFmpegWrapper.GetFrameRgba();
if ((frame.Width | frame.Height) == 0)
{
return;
}
throw new NotImplementedException();
}
internal void CopyPlanes(NvGpuVmm Vmm, SurfaceOutputConfig OutputConfig)
{
switch (OutputConfig.PixelFormat)
{
case SurfacePixelFormat.RGBA8: CopyPlanesRgba8(Vmm, OutputConfig); break;
case SurfacePixelFormat.YUV420P: CopyPlanesYuv420p(Vmm, OutputConfig); break;
default: ThrowUnimplementedPixelFormat(OutputConfig.PixelFormat); break;
}
}
private void CopyPlanesRgba8(NvGpuVmm Vmm, SurfaceOutputConfig OutputConfig)
{
FFmpegFrame Frame = FFmpegWrapper.GetFrameRgba();
if ((Frame.Width | Frame.Height) == 0)
{
return;
}
GalImage Image = new GalImage(
OutputConfig.SurfaceWidth,
OutputConfig.SurfaceHeight, 1,
OutputConfig.GobBlockHeight,
GalMemoryLayout.BlockLinear,
GalImageFormat.RGBA8 | GalImageFormat.Unorm);
ImageUtils.WriteTexture(Vmm, Image, Vmm.GetPhysicalAddress(OutputConfig.SurfaceLumaAddress), Frame.Data);
}
private void CopyPlanesRgba8(NvGpuVmm vmm, SurfaceOutputConfig outputConfig)
{
FFmpegFrame frame = FFmpegWrapper.GetFrameRgba();
if ((frame.Width | frame.Height) == 0)
{
return;
}
GalImage image = new GalImage(
outputConfig.SurfaceWidth,
outputConfig.SurfaceHeight, 1, 1, 1,
outputConfig.GobBlockHeight, 1,
GalMemoryLayout.BlockLinear,
GalImageFormat.Rgba8 | GalImageFormat.Unorm,
GalTextureTarget.TwoD);
ImageUtils.WriteTexture(vmm, image, vmm.GetPhysicalAddress(outputConfig.SurfaceLumaAddress), frame.Data);
}
private void CopyPlanesYuv420P(NvGpuVmm vmm, SurfaceOutputConfig outputConfig)
{
FFmpegFrame frame = FFmpegWrapper.GetFrame();
if ((frame.Width | frame.Height) == 0)
{
return;
}
int halfSrcWidth = frame.Width / 2;
int halfWidth = frame.Width / 2;
int halfHeight = frame.Height / 2;
int alignedWidth = (outputConfig.SurfaceWidth + 0xff) & ~0xff;
for (int y = 0; y < frame.Height; y++)
{
int src = y * frame.Width;
int dst = y * alignedWidth;
int size = frame.Width;
for (int offset = 0; offset < size; offset++)
{
vmm.WriteByte(outputConfig.SurfaceLumaAddress + dst + offset, *(frame.LumaPtr + src + offset));
}
}
// Copy chroma data from both channels with interleaving.
for (int y = 0; y < halfHeight; y++)
{
int src = y * halfSrcWidth;
int dst = y * alignedWidth;
for (int x = 0; x < halfWidth; x++)
{
vmm.WriteByte(outputConfig.SurfaceChromaUAddress + dst + x * 2 + 0, *(frame.ChromaBPtr + src + x));
vmm.WriteByte(outputConfig.SurfaceChromaUAddress + dst + x * 2 + 1, *(frame.ChromaRPtr + src + x));
}
}
}
private void CopyPlanesYuv420p(NvGpuVmm Vmm, SurfaceOutputConfig OutputConfig)
{
FFmpegFrame Frame = FFmpegWrapper.GetFrame();
if ((Frame.Width | Frame.Height) == 0)
{
return;
}
int HalfSrcWidth = Frame.Width / 2;
int HalfWidth = Frame.Width / 2;
int HalfHeight = Frame.Height / 2;
int AlignedWidth = (OutputConfig.SurfaceWidth + 0xff) & ~0xff;
for (int Y = 0; Y < Frame.Height; Y++)
{
int Src = Y * Frame.Width;
int Dst = Y * AlignedWidth;
int Size = Frame.Width;
for (int Offset = 0; Offset < Size; Offset++)
{
Vmm.WriteByte(OutputConfig.SurfaceLumaAddress + Dst + Offset, *(Frame.LumaPtr + Src + Offset));
}
}
//Copy chroma data from both channels with interleaving.
for (int Y = 0; Y < HalfHeight; Y++)
{
int Src = Y * HalfSrcWidth;
int Dst = Y * AlignedWidth;
for (int X = 0; X < HalfWidth; X++)
{
Vmm.WriteByte(OutputConfig.SurfaceChromaUAddress + Dst + X * 2 + 0, *(Frame.ChromaBPtr + Src + X));
Vmm.WriteByte(OutputConfig.SurfaceChromaUAddress + Dst + X * 2 + 1, *(Frame.ChromaRPtr + Src + X));
}
}
}
