blob: dcb48b63e652430ea5f63d64751f12e0e6fc9021 [file] [log] [blame]
* Copyright (c) 2012 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 <string>
#include "webrtc/api/array_view.h"
#include "webrtc/api/rtpparameters.h"
#include "webrtc/modules/rtp_rtcp/include/rtp_rtcp_defines.h"
#include "webrtc/rtc_base/basictypes.h"
#include "webrtc/rtc_base/checks.h"
namespace webrtc {
struct RtpExtensionSize {
RTPExtensionType type;
uint8_t value_size;
class RtpHeaderExtensionMap {
static constexpr RTPExtensionType kInvalidType = kRtpExtensionNone;
static constexpr uint8_t kInvalidId = 0;
explicit RtpHeaderExtensionMap(rtc::ArrayView<const RtpExtension> extensions);
template <typename Extension>
bool Register(uint8_t id) {
return Register(id, Extension::kId, Extension::kUri);
bool RegisterByType(uint8_t id, RTPExtensionType type);
bool RegisterByUri(uint8_t id, const std::string& uri);
bool IsRegistered(RTPExtensionType type) const {
return GetId(type) != kInvalidId;
// Return kInvalidType if not found.
RTPExtensionType GetType(uint8_t id) const {
RTC_DCHECK_GE(id, kMinId);
RTC_DCHECK_LE(id, kMaxId);
return types_[id];
// Return kInvalidId if not found.
uint8_t GetId(RTPExtensionType type) const {
RTC_DCHECK_GT(type, kRtpExtensionNone);
RTC_DCHECK_LT(type, kRtpExtensionNumberOfExtensions);
return ids_[type];
size_t GetTotalLengthInBytes(
rtc::ArrayView<const RtpExtensionSize> extensions) const;
// TODO(danilchap): Remove use of the functions below.
int32_t Register(RTPExtensionType type, uint8_t id) {
return RegisterByType(id, type) ? 0 : -1;
int32_t Deregister(RTPExtensionType type);
static constexpr uint8_t kMinId = 1;
static constexpr uint8_t kMaxId = 14;
bool Register(uint8_t id, RTPExtensionType type, const char* uri);
RTPExtensionType types_[kMaxId + 1];
uint8_t ids_[kRtpExtensionNumberOfExtensions];
} // namespace webrtc