/* *  Copyright 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. */ #include "libyuv/video_common.h" #ifdef __cplusplusnamespace libyuv {extern "C" {#endif struct FourCCAliasEntry {  uint32_t alias;  uint32_t canonical;}; #define NUM_ALIASES 18static const struct FourCCAliasEntry kFourCCAliases[NUM_ALIASES] = {    {FOURCC_IYUV, FOURCC_I420},    {FOURCC_YU12, FOURCC_I420},    {FOURCC_YU16, FOURCC_I422},    {FOURCC_YU24, FOURCC_I444},    {FOURCC_YUYV, FOURCC_YUY2},    {FOURCC_YUVS, FOURCC_YUY2},  // kCMPixelFormat_422YpCbCr8_yuvs    {FOURCC_HDYC, FOURCC_UYVY},    {FOURCC_2VUY, FOURCC_UYVY},  // kCMPixelFormat_422YpCbCr8    {FOURCC_JPEG, FOURCC_MJPG},  // Note: JPEG has DHT while MJPG does not.    {FOURCC_DMB1, FOURCC_MJPG},    {FOURCC_BA81, FOURCC_BGGR},  // deprecated.    {FOURCC_RGB3, FOURCC_RAW},    {FOURCC_BGR3, FOURCC_24BG},    {FOURCC_CM32, FOURCC_BGRA},  // kCMPixelFormat_32ARGB    {FOURCC_CM24, FOURCC_RAW},   // kCMPixelFormat_24RGB    {FOURCC_L555, FOURCC_RGBO},  // kCMPixelFormat_16LE555    {FOURCC_L565, FOURCC_RGBP},  // kCMPixelFormat_16LE565    {FOURCC_5551, FOURCC_RGBO},  // kCMPixelFormat_16LE5551};// TODO(fbarchard): Consider mapping kCMPixelFormat_32BGRA to FOURCC_ARGB.//  {FOURCC_BGRA, FOURCC_ARGB},  // kCMPixelFormat_32BGRA LIBYUV_APIuint32_t CanonicalFourCC(uint32_t fourcc) {  int i;  for (i = 0; i < NUM_ALIASES; ++i) {    if (kFourCCAliases[i].alias == fourcc) {      return kFourCCAliases[i].canonical;    }  }  // Not an alias, so return it as-is.  return fourcc;} #ifdef __cplusplus}  // extern "C"}  // namespace libyuv#endif