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