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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
tree | f435a8308119effd964b339f76abb83a57c29483 /third_party/libwebrtc/modules/rtp_rtcp/include/rtp_cvo.h | |
parent | Initial commit. (diff) | |
download | firefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz firefox-26a029d407be480d791972afb5975cf62c9360a6.zip |
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'third_party/libwebrtc/modules/rtp_rtcp/include/rtp_cvo.h')
-rw-r--r-- | third_party/libwebrtc/modules/rtp_rtcp/include/rtp_cvo.h | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/third_party/libwebrtc/modules/rtp_rtcp/include/rtp_cvo.h b/third_party/libwebrtc/modules/rtp_rtcp/include/rtp_cvo.h new file mode 100644 index 0000000000..497946d6a7 --- /dev/null +++ b/third_party/libwebrtc/modules/rtp_rtcp/include/rtp_cvo.h @@ -0,0 +1,56 @@ +/* + * Copyright (c) 2015 The WebRTC 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. + */ +#ifndef MODULES_RTP_RTCP_INCLUDE_RTP_CVO_H_ +#define MODULES_RTP_RTCP_INCLUDE_RTP_CVO_H_ + +#include "api/video/video_rotation.h" +#include "rtc_base/checks.h" + +namespace webrtc { + +// Please refer to http://www.etsi.org/deliver/etsi_ts/126100_126199/126114/ +// 12.07.00_60/ts_126114v120700p.pdf Section 7.4.5. The rotation of a frame is +// the clockwise angle the frames must be rotated in order to display the frames +// correctly if the display is rotated in its natural orientation. +inline uint8_t ConvertVideoRotationToCVOByte(VideoRotation rotation) { + switch (rotation) { + case kVideoRotation_0: + return 0; + case kVideoRotation_90: + return 1; + case kVideoRotation_180: + return 2; + case kVideoRotation_270: + return 3; + } + RTC_DCHECK_NOTREACHED(); + return 0; +} + +inline VideoRotation ConvertCVOByteToVideoRotation(uint8_t cvo_byte) { + // CVO byte: |0 0 0 0 C F R R|. + const uint8_t rotation_bits = cvo_byte & 0x3; + switch (rotation_bits) { + case 0: + return kVideoRotation_0; + case 1: + return kVideoRotation_90; + case 2: + return kVideoRotation_180; + case 3: + return kVideoRotation_270; + default: + RTC_DCHECK_NOTREACHED(); + return kVideoRotation_0; + } +} + +} // namespace webrtc +#endif // MODULES_RTP_RTCP_INCLUDE_RTP_CVO_H_ |