YangWX/crossdesk
1
0
Fork 0
mirror of https://github.com/kunkundi/crossdesk.git synced 2025-10-26 20:25:34 +08:00
Code Issues Packages Projects Releases Wiki Activity

[fix] fix color space for thumbnail

Browse Source
This commit is contained in:
dijunkun
2025-05-29 14:17:33 +08:00
parent 818dab764f
commit b86d3d42ee
2 changed files with 29 additions and 24 deletions
Download Patch File Download Diff File Expand all files Collapse all files

45
src/single_window/thumbnail.cpp
View File

@@ -82,35 +82,40 @@ bool LoadTextureFromFile(const char* file_name, SDL_Renderer* renderer,
return ret; return ret;
} }
void ScaleYUV420pToABGR(char* dst_buffer_, int video_width_, int video_height_, void ScaleNv12ToABGR(char* dst_buffer_, int video_width_, int video_height_,
int scaled_video_width_, int scaled_video_height_, int scaled_video_width_, int scaled_video_height_,
char* rgba_buffer_) { char* rgba_buffer_) {
int src_y_size = video_width_ * video_height_;
int src_uv_size = (video_width_ + 1) / 2 * (video_height_ + 1) / 2;
int dst_y_size = scaled_video_width_ * scaled_video_height_;
int dst_uv_size =
(scaled_video_width_ + 1) / 2 * (scaled_video_height_ + 1) / 2;
uint8_t* src_y = reinterpret_cast<uint8_t*>(dst_buffer_); uint8_t* src_y = reinterpret_cast<uint8_t*>(dst_buffer_);
uint8_t* src_u = src_y + src_y_size; uint8_t* src_uv = src_y + video_width_ * video_height_;
uint8_t* src_v = src_u + src_uv_size; int src_uv_stride = video_width_ / 2;
int src_uv_size = src_uv_stride * (video_height_ / 2);
std::unique_ptr<uint8_t[]> dst_y(new uint8_t[dst_y_size]); std::unique_ptr<uint8_t[]> tmp_u(new uint8_t[src_uv_size]);
std::unique_ptr<uint8_t[]> tmp_v(new uint8_t[src_uv_size]);
libyuv::NV12ToI420(src_y, video_width_, src_uv, video_width_, src_y,
video_width_, tmp_u.get(), src_uv_stride, tmp_v.get(),
src_uv_stride, video_width_, video_height_);
int dst_y_stride = scaled_video_width_;
int dst_uv_stride = (scaled_video_width_ + 1) / 2;
int dst_uv_size = dst_uv_stride * ((scaled_video_height_ + 1) / 2);
std::unique_ptr<uint8_t[]> dst_y(
new uint8_t[dst_y_stride * scaled_video_height_]);
std::unique_ptr<uint8_t[]> dst_u(new uint8_t[dst_uv_size]); std::unique_ptr<uint8_t[]> dst_u(new uint8_t[dst_uv_size]);
std::unique_ptr<uint8_t[]> dst_v(new uint8_t[dst_uv_size]); std::unique_ptr<uint8_t[]> dst_v(new uint8_t[dst_uv_size]);
libyuv::I420Scale(src_y, video_width_, src_u, (video_width_ + 1) / 2, src_v, libyuv::I420Scale(src_y, video_width_, tmp_u.get(), src_uv_stride,
(video_width_ + 1) / 2, video_width_, video_height_, tmp_v.get(), src_uv_stride, video_width_, video_height_,
dst_y.get(), scaled_video_width_, dst_u.get(), dst_y.get(), dst_y_stride, dst_u.get(), dst_uv_stride,
(scaled_video_width_ + 1) / 2, dst_v.get(), dst_v.get(), dst_uv_stride, scaled_video_width_,
(scaled_video_width_ + 1) / 2, scaled_video_width_,
scaled_video_height_, libyuv::kFilterBilinear); scaled_video_height_, libyuv::kFilterBilinear);
libyuv::I420ToABGR( libyuv::I420ToABGR(
dst_y.get(), scaled_video_width_, dst_u.get(), dst_y.get(), dst_y_stride, dst_u.get(), dst_uv_stride, dst_v.get(),
(scaled_video_width_ + 1) / 2, dst_v.get(), (scaled_video_width_ + 1) / 2, dst_uv_stride, reinterpret_cast<uint8_t*>(rgba_buffer_),
reinterpret_cast<uint8_t*>(rgba_buffer_), scaled_video_width_ * 4, scaled_video_width_ * 4, scaled_video_width_, scaled_video_height_);
scaled_video_width_, scaled_video_height_);
} }
Thumbnail::Thumbnail() { Thumbnail::Thumbnail() {
@@ -141,7 +146,7 @@ int Thumbnail::SaveToThumbnail(const char* yuv420p, int width, int height,
} }
if (yuv420p) { if (yuv420p) {
ScaleYUV420pToABGR((char*)yuv420p, width, height, thumbnail_width_, ScaleNv12ToABGR((char*)yuv420p, width, height, thumbnail_width_,
thumbnail_height_, rgba_buffer_); thumbnail_height_, rgba_buffer_);
} else { } else {
// If yuv420p is null, fill the buffer with black pixels // If yuv420p is null, fill the buffer with black pixels

2
thirdparty/projectx vendored

Submodule thirdparty/projectx updated: c4607bef9f...9c5fc397de