185 lines
6.6 KiB
C++
185 lines
6.6 KiB
C++
/*
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* Copyright 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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// Common definitions for video, including fourcc and VideoFormat.
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#ifndef INCLUDE_LIBYUV_VIDEO_COMMON_H_
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#define INCLUDE_LIBYUV_VIDEO_COMMON_H_
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#include "libyuv/basic_types.h"
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#ifdef __cplusplus
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namespace libyuv {
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extern "C" {
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#endif
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//////////////////////////////////////////////////////////////////////////////
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// Definition of FourCC codes
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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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#ifdef __cplusplus
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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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#else
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#define FOURCC(a, b, c, d) \
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(((uint32)(a)) | ((uint32)(b) << 8) | /* NOLINT */ \
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((uint32)(c) << 16) | ((uint32)(d) << 24)) /* NOLINT */
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#endif
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// Some pages discussing FourCC codes:
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// http://www.fourcc.org/yuv.php
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// http://v4l2spec.bytesex.org/spec/book1.htm
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// http://developer.apple.com/quicktime/icefloe/dispatch020.html
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// http://msdn.microsoft.com/library/windows/desktop/dd206750.aspx#nv12
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// http://people.xiph.org/~xiphmont/containers/nut/nut4cc.txt
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// FourCC codes grouped according to implementation efficiency.
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// Primary formats should convert in 1 efficient step.
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// Secondary formats are converted in 2 steps.
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// Auxilliary formats call primary converters.
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enum FourCC {
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// 8 Primary YUV formats: 5 planar, 2 biplanar, 2 packed.
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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_I444 = FOURCC('I', '4', '4', '4'),
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FOURCC_I411 = FOURCC('I', '4', '1', '1'), // deprecated.
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FOURCC_I400 = FOURCC('I', '4', '0', '0'),
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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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FOURCC_YUY2 = FOURCC('Y', 'U', 'Y', '2'),
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FOURCC_UYVY = FOURCC('U', 'Y', 'V', 'Y'),
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// 1 Secondary YUV format: row biplanar.
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FOURCC_M420 = FOURCC('M', '4', '2', '0'),
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FOURCC_Q420 = FOURCC('Q', '4', '2', '0'), // deprecated.
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// 9 Primary RGB formats: 4 32 bpp, 2 24 bpp, 3 16 bpp.
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FOURCC_ARGB = FOURCC('A', 'R', 'G', 'B'),
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FOURCC_BGRA = FOURCC('B', 'G', 'R', 'A'),
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FOURCC_ABGR = FOURCC('A', 'B', 'G', 'R'),
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FOURCC_24BG = FOURCC('2', '4', 'B', 'G'),
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FOURCC_RAW = FOURCC('r', 'a', 'w', ' '),
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FOURCC_RGBA = FOURCC('R', 'G', 'B', 'A'),
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FOURCC_RGBP = FOURCC('R', 'G', 'B', 'P'), // rgb565 LE.
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FOURCC_RGBO = FOURCC('R', 'G', 'B', 'O'), // argb1555 LE.
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FOURCC_R444 = FOURCC('R', '4', '4', '4'), // argb4444 LE.
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// 4 Secondary RGB formats: 4 Bayer Patterns. deprecated.
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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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// 1 Primary Compressed YUV format.
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FOURCC_MJPG = FOURCC('M', 'J', 'P', 'G'),
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// 5 Auxiliary YUV variations: 3 with U and V planes are swapped, 1 Alias.
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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_YV24 = FOURCC('Y', 'V', '2', '4'),
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FOURCC_YU12 = FOURCC('Y', 'U', '1', '2'), // Linux version of I420.
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FOURCC_J420 = FOURCC('J', '4', '2', '0'),
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FOURCC_J400 = FOURCC('J', '4', '0', '0'), // unofficial fourcc
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FOURCC_H420 = FOURCC('H', '4', '2', '0'), // unofficial fourcc
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// 14 Auxiliary aliases. CanonicalFourCC() maps these to canonical fourcc.
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FOURCC_IYUV = FOURCC('I', 'Y', 'U', 'V'), // Alias for I420.
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FOURCC_YU16 = FOURCC('Y', 'U', '1', '6'), // Alias for I422.
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FOURCC_YU24 = FOURCC('Y', 'U', '2', '4'), // Alias for I444.
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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 on Mac.
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FOURCC_JPEG = FOURCC('J', 'P', 'E', 'G'), // Alias for MJPG.
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FOURCC_DMB1 = FOURCC('d', 'm', 'b', '1'), // Alias for MJPG on Mac.
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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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FOURCC_CM32 = FOURCC(0, 0, 0, 32), // Alias for BGRA kCMPixelFormat_32ARGB
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FOURCC_CM24 = FOURCC(0, 0, 0, 24), // Alias for RAW kCMPixelFormat_24RGB
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FOURCC_L555 = FOURCC('L', '5', '5', '5'), // Alias for RGBO.
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FOURCC_L565 = FOURCC('L', '5', '6', '5'), // Alias for RGBP.
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FOURCC_5551 = FOURCC('5', '5', '5', '1'), // Alias for RGBO.
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// 1 Auxiliary compressed YUV format set aside for capturer.
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FOURCC_H264 = FOURCC('H', '2', '6', '4'),
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// Match any fourcc.
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FOURCC_ANY = -1,
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};
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enum FourCCBpp {
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// Canonical fourcc codes used in our code.
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FOURCC_BPP_I420 = 12,
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FOURCC_BPP_I422 = 16,
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FOURCC_BPP_I444 = 24,
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FOURCC_BPP_I411 = 12,
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FOURCC_BPP_I400 = 8,
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FOURCC_BPP_NV21 = 12,
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FOURCC_BPP_NV12 = 12,
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FOURCC_BPP_YUY2 = 16,
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FOURCC_BPP_UYVY = 16,
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FOURCC_BPP_M420 = 12,
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FOURCC_BPP_Q420 = 12,
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FOURCC_BPP_ARGB = 32,
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FOURCC_BPP_BGRA = 32,
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FOURCC_BPP_ABGR = 32,
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FOURCC_BPP_RGBA = 32,
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FOURCC_BPP_24BG = 24,
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FOURCC_BPP_RAW = 24,
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FOURCC_BPP_RGBP = 16,
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FOURCC_BPP_RGBO = 16,
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FOURCC_BPP_R444 = 16,
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FOURCC_BPP_RGGB = 8,
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FOURCC_BPP_BGGR = 8,
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FOURCC_BPP_GRBG = 8,
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FOURCC_BPP_GBRG = 8,
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FOURCC_BPP_YV12 = 12,
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FOURCC_BPP_YV16 = 16,
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FOURCC_BPP_YV24 = 24,
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FOURCC_BPP_YU12 = 12,
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FOURCC_BPP_J420 = 12,
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FOURCC_BPP_J400 = 8,
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FOURCC_BPP_H420 = 12,
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FOURCC_BPP_MJPG = 0, // 0 means unknown.
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FOURCC_BPP_H264 = 0,
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FOURCC_BPP_IYUV = 12,
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FOURCC_BPP_YU16 = 16,
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FOURCC_BPP_YU24 = 24,
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FOURCC_BPP_YUYV = 16,
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FOURCC_BPP_YUVS = 16,
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FOURCC_BPP_HDYC = 16,
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FOURCC_BPP_2VUY = 16,
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FOURCC_BPP_JPEG = 1,
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FOURCC_BPP_DMB1 = 1,
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FOURCC_BPP_BA81 = 8,
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FOURCC_BPP_RGB3 = 24,
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FOURCC_BPP_BGR3 = 24,
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FOURCC_BPP_CM32 = 32,
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FOURCC_BPP_CM24 = 24,
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// Match any fourcc.
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FOURCC_BPP_ANY = 0, // 0 means unknown.
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};
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// Converts fourcc aliases into canonical ones.
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LIBYUV_API uint32 CanonicalFourCC(uint32 fourcc);
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#ifdef __cplusplus
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} // extern "C"
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} // namespace libyuv
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#endif
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#endif // INCLUDE_LIBYUV_VIDEO_COMMON_H_
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