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Optimize CUDA support to avoid roundtrip to CPU memory

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This commit is contained in:
Cameron Gutman
2021-12-06 18:22:39 -06:00
parent f0c292f508
commit 3e9aea1f7a
5 changed files with 141 additions and 8 deletions
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20
app/streaming/video/ffmpeg-renderers/sdlvid.cpp
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@@ -5,6 +5,10 @@
#include <Limelight.h>
#ifdef HAVE_CUDA
#include "cuda.h"
#endif
SdlRenderer::SdlRenderer()
: m_Renderer(nullptr),
m_Texture(nullptr),
@@ -203,7 +207,7 @@ void SdlRenderer::renderFrame(AVFrame* frame)
return;
}
if (frame->hw_frames_ctx != nullptr) {
if (frame->hw_frames_ctx != nullptr && frame->format != AV_PIX_FMT_CUDA) {
// If we are acting as the frontend for a hardware
// accelerated decoder, we'll need to read the frame
// back to render it.
@@ -254,6 +258,7 @@ void SdlRenderer::renderFrame(AVFrame* frame)
case AV_PIX_FMT_YUV420P:
sdlFormat = SDL_PIXELFORMAT_YV12;
break;
case AV_PIX_FMT_CUDA:
case AV_PIX_FMT_NV12:
sdlFormat = SDL_PIXELFORMAT_NV12;
break;
@@ -290,7 +295,18 @@ void SdlRenderer::renderFrame(AVFrame* frame)
}
}
if (frame->format == AV_PIX_FMT_YUV420P) {
if (frame->format == AV_PIX_FMT_CUDA) {
#ifdef HAVE_CUDA
SDL_GL_BindTexture(m_Texture, nullptr, nullptr);
CUDARenderer::copyCudaFrameToBoundTexture(frame);
SDL_GL_UnbindTexture(m_Texture);
#else
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"Got CUDA frame, but not built with CUDA support!");
goto Exit;
#endif
}
else if (frame->format == AV_PIX_FMT_YUV420P) {
SDL_UpdateYUVTexture(m_Texture, nullptr,
frame->data[0],
frame->linesize[0],