зеркало из https://github.com/mozilla/gecko-dev.git
82 строки
3.0 KiB
C++
82 строки
3.0 KiB
C++
// Copyright (c) 2010 The Chromium Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style license that can be
|
|
// found in the LICENSE file.
|
|
|
|
#ifndef MEDIA_BASE_YUV_CONVERT_H_
|
|
#define MEDIA_BASE_YUV_CONVERT_H_
|
|
|
|
#include "chromium_types.h"
|
|
#include "gfxCore.h"
|
|
|
|
namespace mozilla {
|
|
|
|
namespace gfx {
|
|
|
|
// Type of YUV surface.
|
|
// The value of these enums matter as they are used to shift vertical indices.
|
|
enum YUVType {
|
|
YV12 = 0, // YV12 is half width and half height chroma channels.
|
|
YV16 = 1, // YV16 is half width and full height chroma channels.
|
|
YV24 = 2 // YV24 is full width and full height chroma channels.
|
|
};
|
|
|
|
// Mirror means flip the image horizontally, as in looking in a mirror.
|
|
// Rotate happens after mirroring.
|
|
enum Rotate {
|
|
ROTATE_0, // Rotation off.
|
|
ROTATE_90, // Rotate clockwise.
|
|
ROTATE_180, // Rotate upside down.
|
|
ROTATE_270, // Rotate counter clockwise.
|
|
MIRROR_ROTATE_0, // Mirror horizontally.
|
|
MIRROR_ROTATE_90, // Mirror then Rotate clockwise.
|
|
MIRROR_ROTATE_180, // Mirror vertically.
|
|
MIRROR_ROTATE_270 // Transpose.
|
|
};
|
|
|
|
// Filter affects how scaling looks.
|
|
enum ScaleFilter {
|
|
FILTER_NONE = 0, // No filter (point sampled).
|
|
FILTER_BILINEAR_H = 1, // Bilinear horizontal filter.
|
|
FILTER_BILINEAR_V = 2, // Bilinear vertical filter.
|
|
FILTER_BILINEAR = 3 // Bilinear filter.
|
|
};
|
|
|
|
NS_GFX_(YUVType) TypeFromSize(int ywidth, int yheight, int cbcrwidth, int cbcrheight);
|
|
|
|
// Convert a frame of YUV to 32 bit ARGB.
|
|
// Pass in YV16/YV12 depending on source format
|
|
NS_GFX_(void) ConvertYCbCrToRGB32(const uint8* yplane,
|
|
const uint8* uplane,
|
|
const uint8* vplane,
|
|
uint8* rgbframe,
|
|
int pic_x,
|
|
int pic_y,
|
|
int pic_width,
|
|
int pic_height,
|
|
int ystride,
|
|
int uvstride,
|
|
int rgbstride,
|
|
YUVType yuv_type);
|
|
|
|
// Scale a frame of YUV to 32 bit ARGB.
|
|
// Supports rotation and mirroring.
|
|
NS_GFX_(void) ScaleYCbCrToRGB32(const uint8* yplane,
|
|
const uint8* uplane,
|
|
const uint8* vplane,
|
|
uint8* rgbframe,
|
|
int source_width,
|
|
int source_height,
|
|
int width,
|
|
int height,
|
|
int ystride,
|
|
int uvstride,
|
|
int rgbstride,
|
|
YUVType yuv_type,
|
|
Rotate view_rotate,
|
|
ScaleFilter filter);
|
|
|
|
} // namespace gfx
|
|
} // namespace mozilla
|
|
|
|
#endif // MEDIA_BASE_YUV_CONVERT_H_
|