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https://github.com/mollyim/webrtc.git
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723b35f6f0
Bug: None Change-Id: I1d9447df41edf109665a5c746a6dc2c912aad8a7 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/234526 Reviewed-by: Jakob Ivarsson <jakobi@webrtc.org> Commit-Queue: Danil Chapovalov <danilchap@webrtc.org> Cr-Commit-Position: refs/heads/main@{#35179}
75 lines
2.4 KiB
C++
75 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 MODULES_RTP_RTCP_INCLUDE_RTP_HEADER_EXTENSION_MAP_H_
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#define MODULES_RTP_RTCP_INCLUDE_RTP_HEADER_EXTENSION_MAP_H_
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#include <stdint.h>
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#include <string>
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#include "absl/strings/string_view.h"
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#include "api/array_view.h"
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#include "api/rtp_parameters.h"
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#include "modules/rtp_rtcp/include/rtp_rtcp_defines.h"
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#include "rtc_base/checks.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 int kInvalidId = 0;
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RtpHeaderExtensionMap();
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explicit RtpHeaderExtensionMap(bool extmap_allow_mixed);
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explicit RtpHeaderExtensionMap(rtc::ArrayView<const RtpExtension> extensions);
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void Reset(rtc::ArrayView<const RtpExtension> extensions);
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template <typename Extension>
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bool Register(int id) {
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return Register(id, Extension::kId, Extension::Uri());
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}
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bool RegisterByType(int id, RTPExtensionType type);
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bool RegisterByUri(int id, absl::string_view 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(int id) const;
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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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void Deregister(absl::string_view uri);
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// Corresponds to the SDP attribute extmap-allow-mixed, see RFC8285.
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// Set to true if it's allowed to mix one- and two-byte RTP header extensions
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// in the same stream.
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bool ExtmapAllowMixed() const { return extmap_allow_mixed_; }
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void SetExtmapAllowMixed(bool extmap_allow_mixed) {
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extmap_allow_mixed_ = extmap_allow_mixed;
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}
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private:
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bool Register(int id, RTPExtensionType type, absl::string_view uri);
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uint8_t ids_[kRtpExtensionNumberOfExtensions];
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bool extmap_allow_mixed_;
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};
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} // namespace webrtc
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#endif // MODULES_RTP_RTCP_INCLUDE_RTP_HEADER_EXTENSION_MAP_H_
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