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Fix colorspace transitions in EGLRenderer

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This commit is contained in:
Cameron Gutman 2021-11-19 00:54:59 -06:00
parent d0df4fa3a0
commit 2959faca0c
2 changed files with 15 additions and 25 deletions
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34
app/streaming/video/ffmpeg-renderers/eglvid.cpp
View File

@ -71,8 +71,6 @@ EGLRenderer::EGLRenderer(IFFmpegRenderer *backendRenderer)
m_Window(nullptr),
m_Backend(backendRenderer),
m_VAO(0),
m_ColorSpace(AVCOL_SPC_NB),
m_ColorFull(false),
m_BlockingSwapBuffers(false),
m_LastFrame(av_frame_alloc()),
m_glEGLImageTargetTexture2DOES(nullptr),
@ -624,14 +622,14 @@ bool EGLRenderer::initialize(PDECODER_PARAMETERS params)
return err == GL_NO_ERROR;
}
const float *EGLRenderer::getColorOffsets() {
const float *EGLRenderer::getColorOffsets(const AVFrame* frame) {
static const float limitedOffsets[] = { 16.0f / 255.0f, 128.0f / 255.0f, 128.0f / 255.0f };
static const float fullOffsets[] = { 0.0f, 128.0f / 255.0f, 128.0f / 255.0f };
return m_ColorFull ? fullOffsets : limitedOffsets;
return (frame->color_range == AVCOL_RANGE_JPEG) ? fullOffsets : limitedOffsets;
}
const float *EGLRenderer::getColorMatrix() {
const float *EGLRenderer::getColorMatrix(const AVFrame* frame) {
/* The conversion matrices are shamelessly stolen from linux:
* drivers/media/platform/imx-pxp.c:pxp_setup_csc
*/
@ -666,25 +664,26 @@ const float *EGLRenderer::getColorMatrix() {
1.4746f, -0.5714f, 0.0f
};
switch (m_ColorSpace) {
bool fullRange = (frame->color_range == AVCOL_RANGE_JPEG);
switch (frame->colorspace) {
case AVCOL_SPC_SMPTE170M:
case AVCOL_SPC_BT470BG:
return m_ColorFull ? bt601Full : bt601Lim;
return fullRange ? bt601Full : bt601Lim;
case AVCOL_SPC_BT709:
return m_ColorFull ? bt709Full : bt709Lim;
return fullRange ? bt709Full : bt709Lim;
case AVCOL_SPC_BT2020_NCL:
case AVCOL_SPC_BT2020_CL:
return m_ColorFull ? bt2020Full : bt2020Lim;
return fullRange ? bt2020Full : bt2020Lim;
default:
// Some backends don't populate this, so we'll assume
// the host gave us what we asked for by default.
switch (getDecoderColorspace()) {
case COLORSPACE_REC_601:
return m_ColorFull ? bt601Full : bt601Lim;
return fullRange ? bt601Full : bt601Lim;
case COLORSPACE_REC_709:
return m_ColorFull ? bt709Full : bt709Lim;
return fullRange ? bt709Full : bt709Lim;
case COLORSPACE_REC_2020:
return m_ColorFull ? bt2020Full : bt2020Lim;
return fullRange ? bt2020Full : bt2020Lim;
default:
SDL_assert(false);
}
@ -770,13 +769,6 @@ void EGLRenderer::renderFrame(AVFrame* frame)
SDL_assert(m_EGLImagePixelFormat != AV_PIX_FMT_NONE);
m_ColorSpace = frame->colorspace;
// This handles the case where the color range is unknown,
// so that we use Limited color range which is the default
// behavior for Moonlight.
m_ColorFull = frame->color_range == AVCOL_RANGE_JPEG;
if (!specialize()) {
m_EGLImagePixelFormat = AV_PIX_FMT_NONE;
return;
@ -798,8 +790,8 @@ void EGLRenderer::renderFrame(AVFrame* frame)
// Bind parameters for the shaders
if (m_EGLImagePixelFormat == AV_PIX_FMT_NV12) {
glUniformMatrix3fv(m_ShaderProgramParams[NV12_PARAM_YUVMAT], 1, GL_FALSE, getColorMatrix());
glUniform3fv(m_ShaderProgramParams[NV12_PARAM_OFFSET], 1, getColorOffsets());
glUniformMatrix3fv(m_ShaderProgramParams[NV12_PARAM_YUVMAT], 1, GL_FALSE, getColorMatrix(frame));
glUniform3fv(m_ShaderProgramParams[NV12_PARAM_OFFSET], 1, getColorOffsets(frame));
glUniform1i(m_ShaderProgramParams[NV12_PARAM_PLANE1], 0);
glUniform1i(m_ShaderProgramParams[NV12_PARAM_PLANE2], 1);
}

6
app/streaming/video/ffmpeg-renderers/eglvid.h
View File

@ -23,8 +23,8 @@ private:
unsigned compileShader(const char* vertexShaderSrc, const char* fragmentShaderSrc);
bool compileShaders();
bool specialize();
const float *getColorOffsets();
const float *getColorMatrix();
const float *getColorOffsets(const AVFrame* frame);
const float *getColorMatrix(const AVFrame* frame);
static int loadAndBuildShader(int shaderType, const char *filename);
bool openDisplay(unsigned int platform, void* nativeDisplay);
@ -43,8 +43,6 @@ private:
SDL_Window *m_Window;
IFFmpegRenderer *m_Backend;
unsigned int m_VAO;
int m_ColorSpace;
bool m_ColorFull;
bool m_BlockingSwapBuffers;
AVFrame* m_LastFrame;
PFNGLEGLIMAGETARGETTEXTURE2DOESPROC m_glEGLImageTargetTexture2DOES;