RtpPacket class introduced.

webrtc/modules/rtp_rtcp/source/rtp_header_extensions.h

+/*
+ *  Copyright (c) 2016 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.
+ */
+#ifndef WEBRTC_MODULES_RTP_RTCP_SOURCE_RTP_HEADER_EXTENSIONS_H_
+#define WEBRTC_MODULES_RTP_RTCP_SOURCE_RTP_HEADER_EXTENSIONS_H_
+
+#include "webrtc/base/basictypes.h"
+#include "webrtc/call.h"
+#include "webrtc/common_video/rotation.h"
+#include "webrtc/modules/rtp_rtcp/include/rtp_rtcp_defines.h"
+
+namespace webrtc {
+
+class AbsoluteSendTime {
+ public:
+  static constexpr RTPExtensionType kId = kRtpExtensionAbsoluteSendTime;
+  static constexpr uint8_t kValueSizeBytes = 3;
+  static const char* kName;
+  static bool IsSupportedFor(MediaType type);
+  static bool Parse(const uint8_t* data, uint32_t* time_ms);
+  static bool Write(uint8_t* data, int64_t time_ms);
+};
+
+class AudioLevel {
+ public:
+  static constexpr RTPExtensionType kId = kRtpExtensionAudioLevel;
+  static constexpr uint8_t kValueSizeBytes = 1;
+  static const char* kName;
+  static bool IsSupportedFor(MediaType type);
+  static bool Parse(const uint8_t* data,
+                    bool* voice_activity,
+                    uint8_t* audio_level);
+  static bool Write(uint8_t* data, bool voice_activity, uint8_t audio_level);
+};
+
+class TransmissionOffset {
+ public:
+  static constexpr RTPExtensionType kId = kRtpExtensionTransmissionTimeOffset;
+  static constexpr uint8_t kValueSizeBytes = 3;
+  static const char* kName;
+  static bool IsSupportedFor(MediaType type);
+  static bool Parse(const uint8_t* data, int32_t* time_ms);
+  static bool Write(uint8_t* data, int64_t time_ms);
+};
+
+class TransportSequenceNumber {
+ public:
+  static constexpr RTPExtensionType kId = kRtpExtensionTransportSequenceNumber;
+  static constexpr uint8_t kValueSizeBytes = 2;
+  static const char* kName;
+  static bool IsSupportedFor(MediaType type);
+  static bool Parse(const uint8_t* data, uint16_t* value);
+  static bool Write(uint8_t* data, uint16_t value);
+};
+
+class VideoOrientation {
+ public:
+  static constexpr RTPExtensionType kId = kRtpExtensionVideoRotation;
+  static constexpr uint8_t kValueSizeBytes = 1;
+  static const char* kName;
+  static bool IsSupportedFor(MediaType type);
+  static bool Parse(const uint8_t* data, VideoRotation* value);
+  static bool Write(uint8_t* data, VideoRotation value);
+  static bool Parse(const uint8_t* data, uint8_t* value);
+  static bool Write(uint8_t* data, uint8_t value);
+};
+
+}  // namespace webrtc
+#endif  // WEBRTC_MODULES_RTP_RTCP_SOURCE_RTP_HEADER_EXTENSIONS_H_