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Use EGL fences to reduce video latency

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This commit is contained in:
Cameron Gutman
2022-04-08 19:28:22 -05:00
parent 81d5e7f014
commit e3a7b54f90
3 changed files with 93 additions and 9 deletions
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app/streaming/video/ffmpeg-renderers/eglvid.h
+6
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@@ -12,6 +12,7 @@ public:
virtual bool initialize(PDECODER_PARAMETERS params) override;
virtual bool prepareDecoderContext(AVCodecContext* context, AVDictionary** options) override;
virtual void cleanupRenderContext() override;
virtual void waitToRender() override;
virtual void renderFrame(AVFrame* frame) override;
virtual bool testRenderFrame(AVFrame* frame) override;
virtual void notifyOverlayUpdated(Overlay::OverlayType) override;
@@ -45,11 +46,16 @@ private:
IFFmpegRenderer *m_Backend;
unsigned int m_VAO;
bool m_BlockingSwapBuffers;
EGLSync m_LastRenderSync;
AVFrame* m_LastFrame;
PFNGLEGLIMAGETARGETTEXTURE2DOESPROC m_glEGLImageTargetTexture2DOES;
PFNGLGENVERTEXARRAYSOESPROC m_glGenVertexArraysOES;
PFNGLBINDVERTEXARRAYOESPROC m_glBindVertexArrayOES;
PFNGLDELETEVERTEXARRAYSOESPROC m_glDeleteVertexArraysOES;
PFNEGLCREATESYNCPROC m_eglCreateSync;
PFNEGLCREATESYNCKHRPROC m_eglCreateSyncKHR;
PFNEGLDESTROYSYNCPROC m_eglDestroySync;
PFNEGLCLIENTWAITSYNCPROC m_eglClientWaitSync;
int m_GlesMajorVersion;
int m_GlesMinorVersion;
bool m_HasExtUnpackSubimage;