av_display_rotation_set  878 libavcodec/h264.c             av_display_rotation_set((int32_t *)rotation->data, angle);
av_display_rotation_set 2550 libavcodec/hevc.c         av_display_rotation_set((int32_t *)rotation->data, angle);
av_display_rotation_set   75 libavutil/display.h void av_display_rotation_set(int32_t matrix[9], double angle);