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comparison: media/libyuv/source/video_common.cc
media/libyuv/source/video_common.cc
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| 1 /* | |
| 2 * Copyright 2011 The LibYuv Project Authors. All rights reserved. | |
| 3 * | |
| 4 * Use of this source code is governed by a BSD-style license | |
| 5 * that can be found in the LICENSE file in the root of the source | |
| 6 * tree. An additional intellectual property rights grant can be found | |
| 7 * in the file PATENTS. All contributing project authors may | |
| 8 * be found in the AUTHORS file in the root of the source tree. | |
| 9 */ | |
| 10 | |
| 11 | |
| 12 #include "libyuv/video_common.h" | |
| 13 | |
| 14 #ifdef __cplusplus | |
| 15 namespace libyuv { | |
| 16 extern "C" { | |
| 17 #endif | |
| 18 | |
| 19 #define ARRAY_SIZE(x) (int)(sizeof(x) / sizeof(x[0])) | |
| 20 | |
| 21 struct FourCCAliasEntry { | |
| 22 uint32 alias; | |
| 23 uint32 canonical; | |
| 24 }; | |
| 25 | |
| 26 static const struct FourCCAliasEntry kFourCCAliases[] = { | |
| 27 {FOURCC_IYUV, FOURCC_I420}, | |
| 28 {FOURCC_YU16, FOURCC_I422}, | |
| 29 {FOURCC_YU24, FOURCC_I444}, | |
| 30 {FOURCC_YUYV, FOURCC_YUY2}, | |
| 31 {FOURCC_YUVS, FOURCC_YUY2}, // kCMPixelFormat_422YpCbCr8_yuvs | |
| 32 {FOURCC_HDYC, FOURCC_UYVY}, | |
| 33 {FOURCC_2VUY, FOURCC_UYVY}, // kCMPixelFormat_422YpCbCr8 | |
| 34 {FOURCC_JPEG, FOURCC_MJPG}, // Note: JPEG has DHT while MJPG does not. | |
| 35 {FOURCC_DMB1, FOURCC_MJPG}, | |
| 36 {FOURCC_BA81, FOURCC_BGGR}, | |
| 37 {FOURCC_RGB3, FOURCC_RAW }, | |
| 38 {FOURCC_BGR3, FOURCC_24BG}, | |
| 39 {FOURCC_CM32, FOURCC_BGRA}, // kCMPixelFormat_32ARGB | |
| 40 {FOURCC_CM24, FOURCC_RAW }, // kCMPixelFormat_24RGB | |
| 41 {FOURCC_L555, FOURCC_RGBO}, // kCMPixelFormat_16LE555 | |
| 42 {FOURCC_L565, FOURCC_RGBP}, // kCMPixelFormat_16LE565 | |
| 43 {FOURCC_5551, FOURCC_RGBO}, // kCMPixelFormat_16LE5551 | |
| 44 }; | |
| 45 // TODO(fbarchard): Consider mapping kCMPixelFormat_32BGRA to FOURCC_ARGB. | |
| 46 // {FOURCC_BGRA, FOURCC_ARGB}, // kCMPixelFormat_32BGRA | |
| 47 | |
| 48 LIBYUV_API | |
| 49 uint32 CanonicalFourCC(uint32 fourcc) { | |
| 50 int i; | |
| 51 for (i = 0; i < ARRAY_SIZE(kFourCCAliases); ++i) { | |
| 52 if (kFourCCAliases[i].alias == fourcc) { | |
| 53 return kFourCCAliases[i].canonical; | |
| 54 } | |
| 55 } | |
| 56 // Not an alias, so return it as-is. | |
| 57 return fourcc; | |
| 58 } | |
| 59 | |
| 60 #ifdef __cplusplus | |
| 61 } // extern "C" | |
| 62 } // namespace libyuv | |
| 63 #endif | |
| 64 |
