45e5e385f3
No-Try: true Bug: webrtc:42225170 Change-Id: I4682f400054fee5c86ea24bebf6d703fb90074da Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/354722 Reviewed-by: Harald Alvestrand <hta@webrtc.org> Commit-Queue: Ilya Nikolaevskiy <ilnik@webrtc.org> Reviewed-by: Danil Chapovalov <danilchap@webrtc.org> Reviewed-by: Sergey Silkin <ssilkin@webrtc.org> Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org> Reviewed-by: Erik Språng <sprang@webrtc.org> Cr-Commit-Position: refs/heads/main@{#42650}
51 lines
1.5 KiB
C++
51 lines
1.5 KiB
C++
/*
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* Copyright (c) 2023 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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#include "common_video/h265/h265_common.h"
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#include "common_video/h264/h264_common.h"
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namespace webrtc {
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namespace H265 {
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constexpr uint8_t kNaluTypeMask = 0x7E;
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std::vector<NaluIndex> FindNaluIndices(rtc::ArrayView<const uint8_t> buffer) {
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std::vector<H264::NaluIndex> indices = H264::FindNaluIndices(buffer);
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std::vector<NaluIndex> results;
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for (auto& index : indices) {
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results.push_back(
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{index.start_offset, index.payload_start_offset, index.payload_size});
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}
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return results;
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}
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NaluType ParseNaluType(uint8_t data) {
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return static_cast<NaluType>((data & kNaluTypeMask) >> 1);
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}
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std::vector<uint8_t> ParseRbsp(rtc::ArrayView<const uint8_t> data) {
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return H264::ParseRbsp(data);
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}
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void WriteRbsp(rtc::ArrayView<const uint8_t> bytes, rtc::Buffer* destination) {
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H264::WriteRbsp(bytes, destination);
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}
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uint32_t Log2Ceiling(uint32_t value) {
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// When n == 0, we want the function to return -1.
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// When n == 0, (n - 1) will underflow to 0xFFFFFFFF, which is
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// why the statement below starts with (n ? 32 : -1).
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return (value ? 32 : -1) - WebRtcVideo_CountLeadingZeros32(value - 1);
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}
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} // namespace H265
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} // namespace webrtc
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