5c4f24a141
BUG=None Review-Url: https://codereview.webrtc.org/2642783006 Cr-Commit-Position: refs/heads/master@{#16222}
81 lines
2.4 KiB
C++
81 lines
2.4 KiB
C++
/*
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* Copyright (c) 2012 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 WEBRTC_MODULES_RTP_RTCP_SOURCE_RTP_HEADER_EXTENSION_H_
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#define WEBRTC_MODULES_RTP_RTCP_SOURCE_RTP_HEADER_EXTENSION_H_
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#include <string>
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#include "webrtc/base/array_view.h"
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#include "webrtc/base/basictypes.h"
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#include "webrtc/base/checks.h"
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#include "webrtc/config.h"
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#include "webrtc/modules/rtp_rtcp/include/rtp_rtcp_defines.h"
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namespace webrtc {
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class RtpHeaderExtensionMap {
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public:
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static constexpr RTPExtensionType kInvalidType = kRtpExtensionNone;
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static constexpr uint8_t kInvalidId = 0;
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RtpHeaderExtensionMap();
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explicit RtpHeaderExtensionMap(rtc::ArrayView<const RtpExtension> extensions);
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template <typename Extension>
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bool Register(uint8_t id) {
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return Register(id, Extension::kId, Extension::kValueSizeBytes,
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Extension::kUri);
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}
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bool RegisterByType(uint8_t id, RTPExtensionType type);
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bool RegisterByUri(uint8_t id, const std::string& uri);
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bool IsRegistered(RTPExtensionType type) const {
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return GetId(type) != kInvalidId;
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}
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// Return kInvalidType if not found.
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RTPExtensionType GetType(uint8_t id) const {
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RTC_DCHECK_GE(id, kMinId);
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RTC_DCHECK_LE(id, kMaxId);
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return types_[id];
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}
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// Return kInvalidId if not found.
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uint8_t GetId(RTPExtensionType type) const {
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RTC_DCHECK_GT(type, kRtpExtensionNone);
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RTC_DCHECK_LT(type, kRtpExtensionNumberOfExtensions);
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return ids_[type];
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}
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size_t GetTotalLengthInBytes() const;
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// TODO(danilchap): Remove use of the functions below.
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int32_t Register(RTPExtensionType type, uint8_t id) {
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return RegisterByType(id, type) ? 0 : -1;
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}
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int32_t Deregister(RTPExtensionType type);
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private:
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static constexpr uint8_t kMinId = 1;
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static constexpr uint8_t kMaxId = 14;
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bool Register(uint8_t id,
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RTPExtensionType type,
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size_t value_size,
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const char* uri);
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size_t total_values_size_bytes_ = 0;
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RTPExtensionType types_[kMaxId + 1];
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uint8_t ids_[kRtpExtensionNumberOfExtensions];
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};
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} // namespace webrtc
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#endif // WEBRTC_MODULES_RTP_RTCP_SOURCE_RTP_HEADER_EXTENSION_H_
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