| /* |
| * Copyright (c) 2011 The LibYuv project authors. All Rights Reserved. |
| * |
| * Use of this source code is governed by a BSD-style license |
| * that can be found in the LICENSE file in the root of the source |
| * tree. An additional intellectual property rights grant can be found |
| * in the file PATENTS. All contributing project authors may |
| * be found in the AUTHORS file in the root of the source tree. |
| */ |
| |
| /* |
| * Common definitions for video, including fourcc and VideoFormat |
| */ |
| |
| |
| #ifndef LIBYUV_SOURCE_VIDEO_COMMON_H_ |
| #define LIBYUV_SOURCE_VIDEO_COMMON_H_ |
| |
| #include <string> |
| |
| #include "libyuv/basic_types.h" |
| |
| #ifdef __cplusplus |
| namespace libyuv { |
| extern "C" { |
| #endif |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| // Definition of fourcc. |
| ////////////////////////////////////////////////////////////////////////////// |
| // Convert four characters to a fourcc code. |
| // Needs to be a macro otherwise the OS X compiler complains when the kFormat* |
| // constants are used in a switch. |
| #define FOURCC(a, b, c, d) (\ |
| (static_cast<uint32>(a)) | (static_cast<uint32>(b) << 8) | \ |
| (static_cast<uint32>(c) << 16) | (static_cast<uint32>(d) << 24)) |
| |
| // Some good pages discussing FourCC codes: |
| // http://developer.apple.com/quicktime/icefloe/dispatch020.html |
| // http://www.fourcc.org/yuv.php |
| enum FourCC { |
| // Canonical fourcc codes used in our code. |
| FOURCC_I420 = FOURCC('I', '4', '2', '0'), |
| FOURCC_I422 = FOURCC('I', '4', '2', '2'), |
| FOURCC_I444 = FOURCC('I', '4', '4', '4'), |
| FOURCC_I400 = FOURCC('I', '4', '0', '0'), |
| FOURCC_YV12 = FOURCC('Y', 'V', '1', '2'), |
| FOURCC_YV16 = FOURCC('Y', 'V', '1', '6'), |
| FOURCC_YV24 = FOURCC('Y', 'V', '2', '4'), |
| FOURCC_YUY2 = FOURCC('Y', 'U', 'Y', '2'), |
| FOURCC_UYVY = FOURCC('U', 'Y', 'V', 'Y'), |
| FOURCC_M420 = FOURCC('M', '4', '2', '0'), |
| FOURCC_Q420 = FOURCC('Q', '4', '2', '0'), |
| FOURCC_24BG = FOURCC('2', '4', 'B', 'G'), |
| FOURCC_ABGR = FOURCC('A', 'B', 'G', 'R'), |
| FOURCC_BGRA = FOURCC('B', 'G', 'R', 'A'), |
| FOURCC_ARGB = FOURCC('A', 'R', 'G', 'B'), |
| FOURCC_MJPG = FOURCC('M', 'J', 'P', 'G'), |
| FOURCC_RAW = FOURCC('r', 'a', 'w', ' '), |
| FOURCC_NV21 = FOURCC('N', 'V', '2', '1'), |
| FOURCC_NV12 = FOURCC('N', 'V', '1', '2'), |
| // Next four are Bayer RGB formats. The four characters define the order of |
| // the colours in each 2x2 pixel grid, going left-to-right and top-to-bottom. |
| FOURCC_RGGB = FOURCC('R', 'G', 'G', 'B'), |
| FOURCC_BGGR = FOURCC('B', 'G', 'G', 'R'), |
| FOURCC_GRBG = FOURCC('G', 'R', 'B', 'G'), |
| FOURCC_GBRG = FOURCC('G', 'B', 'R', 'G'), |
| |
| // Aliases for canonical fourcc codes, replaced with their canonical |
| // equivalents by CanonicalFourCC(). |
| FOURCC_IYUV = FOURCC('I', 'Y', 'U', 'V'), // Alias for I420 |
| FOURCC_YU12 = FOURCC('Y', 'U', '1', '2'), // Alias for I420 |
| FOURCC_YU16 = FOURCC('Y', 'U', '1', '6'), // Alias for I422 |
| FOURCC_YU24 = FOURCC('Y', 'U', '2', '4'), // Alias for I444 |
| FOURCC_YUYV = FOURCC('Y', 'U', 'Y', 'V'), // Alias for YUY2 |
| FOURCC_YUVS = FOURCC('y', 'u', 'v', 's'), // Alias for YUY2 on Mac |
| FOURCC_HDYC = FOURCC('H', 'D', 'Y', 'C'), // Alias for UYVY |
| FOURCC_2VUY = FOURCC('2', 'v', 'u', 'y'), // Alias for UYVY |
| FOURCC_JPEG = FOURCC('J', 'P', 'E', 'G'), // Alias for MJPG |
| FOURCC_BA81 = FOURCC('B', 'A', '8', '1'), // Alias for BGGR |
| FOURCC_RGB3 = FOURCC('R', 'G', 'B', '3'), // Alias for RAW |
| FOURCC_BGR3 = FOURCC('B', 'G', 'R', '3'), // Alias for 24BG |
| |
| // Match any fourcc. |
| FOURCC_ANY = 0xFFFFFFFF, |
| }; |
| |
| // Converts fourcc aliases into canonical ones. |
| uint32 CanonicalFourCC(uint32 fourcc); |
| |
| #ifdef __cplusplus |
| } // extern "C" |
| } // namespace libyuv |
| #endif |
| |
| #endif // LIBYUV_SOURCE_VIDEO_COMMON_H_ |