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[fix] fix render area cannot fit the resolution of the receiving video stream

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This commit is contained in:
dijunkun
2024-09-06 17:38:09 +08:00
parent 890615e13a
commit 59c9ca8d53
3 changed files with 26 additions and 14 deletions
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33
src/single_window/render.cpp
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@@ -568,29 +568,36 @@ int Render::Run() {
SDL_GetWindowSize(main_window_, &main_window_width_,
&main_window_height_);
int video_width = main_window_width_;
int video_height = main_window_height_ -
(fullscreen_button_pressed_ ? 0 : title_bar_height_);
float video_ratio = (float)video_width_ / (float)video_height_;
float video_ratio_reverse = (float)video_height_ / (float)video_width_;
if (video_width * 9 < video_height * 16) {
int render_area_width = main_window_width_;
int render_area_height =
main_window_height_ -
(fullscreen_button_pressed_ ? 0 : title_bar_height_);
if (render_area_width < render_area_height * video_ratio) {
stream_render_rect_.x = 0;
stream_render_rect_.y =
abs(video_height - video_width * 9 / 16) / 2 +
abs(render_area_height -
render_area_width * video_ratio_reverse) /
2 +
(fullscreen_button_pressed_ ? 0 : title_bar_height_);
stream_render_rect_.w = video_width;
stream_render_rect_.h = video_width * 9 / 16;
} else if (video_width * 9 > video_height * 16) {
stream_render_rect_.x = abs(video_width - video_height * 16 / 9) / 2;
stream_render_rect_.w = render_area_width;
stream_render_rect_.h = render_area_width * video_ratio_reverse;
} else if (render_area_width > render_area_height * video_ratio) {
stream_render_rect_.x =
abs(render_area_width - render_area_height * video_ratio) / 2;
stream_render_rect_.y =
fullscreen_button_pressed_ ? 0 : title_bar_height_;
stream_render_rect_.w = video_height * 16 / 9;
stream_render_rect_.h = video_height;
stream_render_rect_.w = render_area_height * video_ratio;
stream_render_rect_.h = render_area_height;
} else {
stream_render_rect_.x = 0;
stream_render_rect_.y =
fullscreen_button_pressed_ ? 0 : title_bar_height_;
stream_render_rect_.w = video_width;
stream_render_rect_.h = video_height;
stream_render_rect_.w = render_area_width;
stream_render_rect_.h = render_area_height;
}
} else if (event.type == SDL_WINDOWEVENT &&
event.window.event == SDL_WINDOWEVENT_CLOSE) {

5
src/single_window/render_callback_func.cpp
View File

@@ -123,6 +123,11 @@ void Render::OnReceiveVideoBufferCb(const XVideoFrame *video_frame,
if (!render->dst_buffer_) {
render->dst_buffer_capacity_ = video_frame->size;
render->dst_buffer_ = new unsigned char[video_frame->size];
// Adapt stream_render_rect_ to the video resolution
SDL_Event event;
event.type = SDL_WINDOWEVENT;
event.window.event = SDL_WINDOWEVENT_SIZE_CHANGED;
SDL_PushEvent(&event);
}
if (render->dst_buffer_capacity_ < video_frame->size) {