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[fix] set YUV colorspace to SDL_COLORSPACE_BT601_LIMITED to resolve NV12 texture display issue

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dijunkun
2025-09-08 09:52:16 +08:00
parent a45118f785
commit 01a5660984
1 changed files with 39 additions and 30 deletions
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69
src/single_window/render.cpp
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@@ -1332,8 +1332,6 @@ void Render::ProcessSdlEvent(const SDL_Event& event) {
break; break;
} }
// use libyuv to convert NV12 to ARGB in order to fix SDL3 NV12 texture
// display issue
if (props->stream_texture_) { if (props->stream_texture_) {
if (props->video_width_ != props->texture_width_ || if (props->video_width_ != props->texture_width_ ||
props->video_height_ != props->texture_height_) { props->video_height_ != props->texture_height_) {
@@ -1341,41 +1339,52 @@ void Render::ProcessSdlEvent(const SDL_Event& event) {
props->texture_height_ = props->video_height_; props->texture_height_ = props->video_height_;
SDL_DestroyTexture(props->stream_texture_); SDL_DestroyTexture(props->stream_texture_);
props->stream_texture_ = SDL_CreateTexture( // props->stream_texture_ = SDL_CreateTexture(
stream_renderer_, SDL_PIXELFORMAT_ARGB8888, // stream_renderer_, stream_pixformat_,
SDL_TEXTUREACCESS_STREAMING, props->texture_width_, // SDL_TEXTUREACCESS_STREAMING, props->texture_width_,
props->texture_height_); // props->texture_height_);
SDL_PropertiesID nvProps = SDL_CreateProperties();
SDL_SetNumberProperty(nvProps, SDL_PROP_TEXTURE_CREATE_WIDTH_NUMBER,
props->texture_width_);
SDL_SetNumberProperty(nvProps,
SDL_PROP_TEXTURE_CREATE_HEIGHT_NUMBER,
props->texture_height_);
SDL_SetNumberProperty(nvProps,
SDL_PROP_TEXTURE_CREATE_FORMAT_NUMBER,
SDL_PIXELFORMAT_NV12);
SDL_SetNumberProperty(nvProps,
SDL_PROP_TEXTURE_CREATE_COLORSPACE_NUMBER,
SDL_COLORSPACE_BT601_LIMITED);
props->stream_texture_ =
SDL_CreateTextureWithProperties(stream_renderer_, nvProps);
SDL_DestroyProperties(nvProps);
} }
} else { } else {
props->texture_width_ = props->video_width_; props->texture_width_ = props->video_width_;
props->texture_height_ = props->video_height_; props->texture_height_ = props->video_height_;
// props->stream_texture_ = SDL_CreateTexture(
// stream_renderer_, stream_pixformat_,
// SDL_TEXTUREACCESS_STREAMING, props->texture_width_,
// props->texture_height_);
SDL_PropertiesID nvProps = SDL_CreateProperties();
SDL_SetNumberProperty(nvProps, SDL_PROP_TEXTURE_CREATE_WIDTH_NUMBER,
props->texture_width_);
SDL_SetNumberProperty(nvProps, SDL_PROP_TEXTURE_CREATE_HEIGHT_NUMBER,
props->texture_height_);
SDL_SetNumberProperty(nvProps, SDL_PROP_TEXTURE_CREATE_FORMAT_NUMBER,
SDL_PIXELFORMAT_NV12);
SDL_SetNumberProperty(nvProps,
SDL_PROP_TEXTURE_CREATE_COLORSPACE_NUMBER,
SDL_COLORSPACE_BT601_LIMITED);
props->stream_texture_ = props->stream_texture_ =
SDL_CreateTexture(stream_renderer_, SDL_PIXELFORMAT_ARGB8888, SDL_CreateTextureWithProperties(stream_renderer_, nvProps);
SDL_TEXTUREACCESS_STREAMING, SDL_DestroyProperties(nvProps);
props->texture_width_, props->texture_height_);
} }
size_t argb_stride = props->texture_width_ * 4; SDL_UpdateTexture(props->stream_texture_, NULL, props->dst_buffer_,
size_t argb_size = argb_stride * props->texture_height_; props->texture_width_);
if (!props->argb_buffer_ || props->argb_buffer_size_ != argb_size) {
if (props->argb_buffer_) {
delete[] props->argb_buffer_;
}
props->argb_buffer_ = new uint8_t[argb_size];
props->argb_buffer_size_ = argb_size;
}
uint8_t* src_y = reinterpret_cast<uint8_t*>(props->dst_buffer_);
int src_stride_y = props->texture_width_;
uint8_t* src_uv = src_y + src_stride_y * props->texture_height_;
int src_stride_uv = props->texture_width_;
libyuv::NV12ToARGB(src_y, src_stride_y, src_uv, src_stride_uv,
props->argb_buffer_, static_cast<int>(argb_stride),
props->texture_width_, props->texture_height_);
SDL_UpdateTexture(props->stream_texture_, NULL, props->argb_buffer_,
static_cast<int>(argb_stride));
} }
break; break;
} }