blob: 95b2acec36f5c9a0927d9c538e851ff9b38dc371 [file] [log] [blame]
// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROMECAST_PUBLIC_VIDEO_PLANE_H_
#define CHROMECAST_PUBLIC_VIDEO_PLANE_H_
namespace chromecast {
struct RectF;
namespace media {
class VideoPlane {
public:
// List of possible hardware transforms that can be applied to video.
// Rotations are anticlockwise.
enum Transform {
TRANSFORM_NONE,
ROTATE_90,
ROTATE_180,
ROTATE_270,
FLIP_HORIZONTAL,
FLIP_VERTICAL,
};
// List of supported coordinates for VideoPlane. kScreen represents screen
// coordinates, meaning coordinates relative to the physical screen
// resolution. kGraphics represents coordinates relative to the graphics
// resolution.
enum Coordinates {
kScreen,
kGraphics,
};
virtual ~VideoPlane() {}
// Updates the video plane geometry.
// |screen_rect| specifies the rectangle that the video should occupy,
// in the coordinates specified by GetVideoPlaneCoordinates. If that function
// is not defined, defaults to using screen resolution coordinates.
// |transform| specifies how the video should be transformed within that
// rectangle.
virtual void SetGeometry(const RectF& screen_rect, Transform transform) = 0;
// Returns the coordinate system to be used when passing coordinates to
// VideoPlane::SetGeometry. If this is not defined, defaults to screen
// coordinates.
static Coordinates GetCoordinates() __attribute__((weak));
};
} // namespace media
} // namespace chromecast
#endif // CHROMECAST_PUBLIC_VIDEO_PLANE_H_