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d3251968d1
Add implementation of RTC_DCHECK_NOTREACHED equal to the RTC_NOTREACHED. The new macros will replace the old one when old one's usage will be removed. The idea of the renaming to provide a clear signal that this is debug build only macros and will be stripped in the production build. Bug: webrtc:9065 Change-Id: I4c35d8b03e74a4b3fd1ae75dba2f9c05643101db Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/237802 Reviewed-by: Harald Alvestrand <hta@webrtc.org> Commit-Queue: Artem Titov <titovartem@webrtc.org> Cr-Commit-Position: refs/heads/main@{#35348}
56 lines
1.7 KiB
C++
56 lines
1.7 KiB
C++
/*
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* Copyright (c) 2015 The WebRTC 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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#ifndef MODULES_RTP_RTCP_INCLUDE_RTP_CVO_H_
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#define MODULES_RTP_RTCP_INCLUDE_RTP_CVO_H_
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#include "api/video/video_rotation.h"
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#include "rtc_base/checks.h"
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namespace webrtc {
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// Please refer to http://www.etsi.org/deliver/etsi_ts/126100_126199/126114/
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// 12.07.00_60/ts_126114v120700p.pdf Section 7.4.5. The rotation of a frame is
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// the clockwise angle the frames must be rotated in order to display the frames
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// correctly if the display is rotated in its natural orientation.
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inline uint8_t ConvertVideoRotationToCVOByte(VideoRotation rotation) {
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switch (rotation) {
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case kVideoRotation_0:
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return 0;
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case kVideoRotation_90:
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return 1;
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case kVideoRotation_180:
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return 2;
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case kVideoRotation_270:
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return 3;
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}
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RTC_DCHECK_NOTREACHED();
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return 0;
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}
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inline VideoRotation ConvertCVOByteToVideoRotation(uint8_t cvo_byte) {
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// CVO byte: |0 0 0 0 C F R R|.
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const uint8_t rotation_bits = cvo_byte & 0x3;
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switch (rotation_bits) {
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case 0:
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return kVideoRotation_0;
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case 1:
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return kVideoRotation_90;
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case 2:
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return kVideoRotation_180;
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case 3:
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return kVideoRotation_270;
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default:
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RTC_DCHECK_NOTREACHED();
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return kVideoRotation_0;
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}
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}
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} // namespace webrtc
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#endif // MODULES_RTP_RTCP_INCLUDE_RTP_CVO_H_
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