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) (static_cast<int>((sizeof(x) / sizeof(x[0])))) 20 21 struct FourCCAliasEntry { 22 uint32 alias; 23 uint32 canonical; 24 }; 25 26 static const 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}, 32 {FOURCC_HDYC, FOURCC_UYVY}, 33 {FOURCC_2VUY, FOURCC_UYVY}, 34 {FOURCC_BA81, FOURCC_BGGR}, 35 {FOURCC_JPEG, FOURCC_MJPG}, // Note: JPEG has DHT while MJPG does not. 36 {FOURCC_RGB3, FOURCC_RAW}, 37 {FOURCC_BGR3, FOURCC_24BG}, 38 }; 39 40 LIBYUV_API 41 uint32 CanonicalFourCC(uint32 fourcc) { 42 for (int i = 0; i < ARRAY_SIZE(kFourCCAliases); ++i) { 43 if (kFourCCAliases[i].alias == fourcc) { 44 return kFourCCAliases[i].canonical; 45 } 46 } 47 // Not an alias, so return it as-is. 48 return fourcc; 49 } 50 51 #ifdef __cplusplus 52 } // extern "C" 53 } // namespace libyuv 54 #endif 55 56
