Telegram-Android/TMessagesProj/jni/voip/webrtc/common_video/h265/h265_common.cc
2020-09-30 16:48:47 +03:00

57 lines
1.6 KiB
C++

/*
* Copyright (c) 2018 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.
*/
#include "common_video/h265/h265_common.h"
#include "common_video/h264/h264_common.h"
namespace webrtc {
namespace H265 {
const uint8_t kNaluTypeMask = 0x7E;
std::vector<NaluIndex> FindNaluIndices(const uint8_t* buffer,
size_t buffer_size) {
std::vector<H264::NaluIndex> indices = H264::FindNaluIndices(buffer, buffer_size);
std::vector<NaluIndex> results;
for (auto& index : indices) {
results.push_back({index.start_offset, index.payload_start_offset, index.payload_size});
}
return results;
}
NaluType ParseNaluType(uint8_t data) {
return static_cast<NaluType>((data & kNaluTypeMask) >> 1);
}
std::vector<uint8_t> ParseRbsp(const uint8_t* data, size_t length) {
return H264::ParseRbsp(data, length);
}
void WriteRbsp(const uint8_t* bytes, size_t length, rtc::Buffer* destination) {
H264::WriteRbsp(bytes, length, destination);
}
uint32_t Log2(uint32_t value) {
uint32_t result = 0;
// If value is not a power of two an additional bit is required
// to account for the ceil() of log2() below.
if ((value & (value - 1)) != 0) {
++result;
}
while (value > 0) {
value >>= 1;
++result;
}
return result;
}
} // namespace H265
} // namespace webrtc