X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=video_widget.h;h=801d5cdb6844565e1c7de2853a06de28bc6e99ee;hb=8321974fc7eb20f91ca4437bdd4ef94576e36098;hp=293c968852d4ef976c60ed30394a4740efdc2ad5;hpb=3e43cd4777ddb314779f6c2be51028e14bd54e6d;p=pkanalytics

diff --git a/video_widget.h b/video_widget.h
index 293c968..801d5cd 100644
--- a/video_widget.h
+++ b/video_widget.h
@@ -37,6 +37,7 @@ public:
 	void initializeGL() override;
 	void resizeGL(int w, int h) override;
 	void paintGL() override;
+	void wheelEvent(QWheelEvent *event) override;
 
 signals:
 	void position_changed(uint64_t pos);
@@ -59,6 +60,11 @@ private:
 	GLuint last_chroma_width = 0, last_chroma_height = 0;
 	GLfloat cbcr_offset[2];
 	double display_aspect = 1.0;
+	double zoom_matrix[9] = {  // Column-major, to match with OpenGL.
+		1.0, 0.0, 0.0,
+		0.0, 1.0, 0.0,
+		0.0, 0.0, 1.0,
+	};
 
 	int64_t pts_origin;
 	int64_t last_pts;
@@ -95,6 +101,8 @@ private:
 	Frame make_video_frame(const AVFrame *frame);
 	bool process_queued_commands(AVFormatContext *format_ctx, AVCodecContext *video_codec_ctx, int video_stream_index, bool *seeked);
 	void store_pts(int64_t pts);
+
+	void fixup_zoom_matrix();
 };
 
 #endif  // !defined(_VIDEO_WIDGET_H)