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https://chromium.googlesource.com/libyuv/libyuv
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12d048335d
Review URL: http://webrtc-codereview.appspot.com/267025 git-svn-id: http://libyuv.googlecode.com/svn/trunk@89 16f28f9a-4ce2-e073-06de-1de4eb20be90
87 lines
3.3 KiB
C++
87 lines
3.3 KiB
C++
/*
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* Copyright (c) 2011 The LibYuv project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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/*
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* Common definitions for video, including fourcc and VideoFormat
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*/
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#ifndef LIBYUV_SOURCE_VIDEO_COMMON_H_
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#define LIBYUV_SOURCE_VIDEO_COMMON_H_
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#include <string>
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#include "libyuv/basic_types.h"
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namespace libyuv {
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//////////////////////////////////////////////////////////////////////////////
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// Definition of fourcc.
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//////////////////////////////////////////////////////////////////////////////
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// Convert four characters to a fourcc code.
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// Needs to be a macro otherwise the OS X compiler complains when the kFormat*
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// constants are used in a switch.
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#define FOURCC(a, b, c, d) (\
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(static_cast<uint32>(a)) | (static_cast<uint32>(b) << 8) | \
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(static_cast<uint32>(c) << 16) | (static_cast<uint32>(d) << 24))
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// Some good pages discussing FourCC codes:
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// http://developer.apple.com/quicktime/icefloe/dispatch020.html
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// http://www.fourcc.org/yuv.php
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enum FourCC {
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// Canonical fourcc codes used in our code.
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FOURCC_I420 = FOURCC('I', '4', '2', '0'),
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FOURCC_I422 = FOURCC('I', '4', '2', '2'),
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FOURCC_YV12 = FOURCC('Y', 'V', '1', '2'),
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FOURCC_YV16 = FOURCC('Y', 'V', '1', '6'),
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FOURCC_YUY2 = FOURCC('Y', 'U', 'Y', '2'),
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FOURCC_UYVY = FOURCC('U', 'Y', 'V', 'Y'),
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FOURCC_M420 = FOURCC('M', '4', '2', '0'),
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FOURCC_Q420 = FOURCC('Q', '4', '2', '0'),
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FOURCC_24BG = FOURCC('2', '4', 'B', 'G'),
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FOURCC_ABGR = FOURCC('A', 'B', 'G', 'R'),
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FOURCC_BGRA = FOURCC('B', 'G', 'R', 'A'),
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FOURCC_ARGB = FOURCC('A', 'R', 'G', 'B'),
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FOURCC_MJPG = FOURCC('M', 'J', 'P', 'G'),
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FOURCC_RAW = FOURCC('r', 'a', 'w', ' '),
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FOURCC_NV21 = FOURCC('N', 'V', '2', '1'),
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FOURCC_NV12 = FOURCC('N', 'V', '1', '2'),
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// Next four are Bayer RGB formats. The four characters define the order of
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// the colours in each 2x2 pixel grid, going left-to-right and top-to-bottom.
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FOURCC_RGGB = FOURCC('R', 'G', 'G', 'B'),
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FOURCC_BGGR = FOURCC('B', 'G', 'G', 'R'),
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FOURCC_GRBG = FOURCC('G', 'R', 'B', 'G'),
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FOURCC_GBRG = FOURCC('G', 'B', 'R', 'G'),
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// Aliases for canonical fourcc codes, replaced with their canonical
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// equivalents by CanonicalFourCC().
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FOURCC_IYUV = FOURCC('I', 'Y', 'U', 'V'), // Alias for I420
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FOURCC_YU12 = FOURCC('Y', 'U', '1', '2'), // Alias for I420
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FOURCC_YU16 = FOURCC('Y', 'U', '1', '6'), // Alias for I422
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FOURCC_YUYV = FOURCC('Y', 'U', 'Y', 'V'), // Alias for YUY2
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FOURCC_YUVS = FOURCC('y', 'u', 'v', 's'), // Alias for YUY2 on Mac
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FOURCC_HDYC = FOURCC('H', 'D', 'Y', 'C'), // Alias for UYVY
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FOURCC_2VUY = FOURCC('2', 'v', 'u', 'y'), // Alias for UYVY
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FOURCC_JPEG = FOURCC('J', 'P', 'E', 'G'), // Alias for MJPG
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FOURCC_BA81 = FOURCC('B', 'A', '8', '1'), // Alias for BGGR
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FOURCC_RGB3 = FOURCC('R', 'G', 'B', '3'), // Alias for RAW
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FOURCC_BGR3 = FOURCC('B', 'G', 'R', '3'), // Alias for 24BG
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// Match any fourcc.
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FOURCC_ANY = 0xFFFFFFFF,
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};
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// Converts fourcc aliases into canonical ones.
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uint32 CanonicalFourCC(uint32 fourcc);
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} // namespace libyuv
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#endif // LIBYUV_SOURCE_VIDEO_COMMON_H_
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