+QuickSyncEncoderImpl::GLSurface *QuickSyncEncoderImpl::allocate_gl_surface()
+{
+ for (unsigned i = 0; i < SURFACE_NUM; ++i) {
+ if (gl_surfaces[i].refcount == 0) {
+ ++gl_surfaces[i].refcount;
+ return &gl_surfaces[i];
+ }
+ }
+ return nullptr;
+}
+
+void QuickSyncEncoderImpl::release_gl_surface(size_t display_frame_num)
+{
+ assert(surface_for_frame.count(display_frame_num));
+ QuickSyncEncoderImpl::GLSurface *surf = surface_for_frame[display_frame_num];
+ if (--surf->refcount == 0) {
+ assert(surface_for_frame.count(display_frame_num));
+ surface_for_frame.erase(display_frame_num);
+ storage_task_queue_changed.notify_all();
+ }
+}
+
+bool QuickSyncEncoderImpl::begin_frame(int64_t pts, int64_t duration, const vector<RefCountedFrame> &input_frames, GLuint *y_tex, GLuint *cbcr_tex)