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/*
* 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.
*/
#ifndef WEBRTC_MODULES_RTP_RTCP_SOURCE_FEC_TEST_HELPER_H_
#define WEBRTC_MODULES_RTP_RTCP_SOURCE_FEC_TEST_HELPER_H_
#include "webrtc/modules/include/module_common_types.h"
#include "webrtc/modules/rtp_rtcp/source/forward_error_correction.h"
namespace webrtc {
const uint8_t kFecPayloadType = 96;
const uint8_t kRedPayloadType = 97;
const uint8_t kVp8PayloadType = 120;
typedef ForwardErrorCorrection::Packet Packet;
struct RtpPacket : public Packet {
WebRtcRTPHeader header;
};
class FrameGenerator {
public:
FrameGenerator();
void NewFrame(int num_packets);
uint16_t NextSeqNum();
RtpPacket* NextPacket(int offset, size_t length);
// Creates a new RtpPacket with the RED header added to the packet.
RtpPacket* BuildMediaRedPacket(const RtpPacket* packet);
// Creates a new RtpPacket with FEC payload and red header. Does this by
// creating a new fake media RtpPacket, clears the marker bit and adds a RED
// header. Finally replaces the payload with the content of |packet->data|.
RtpPacket* BuildFecRedPacket(const Packet* packet);
void SetRedHeader(Packet* red_packet, uint8_t payload_type,
size_t header_length) const;
private:
static void BuildRtpHeader(uint8_t* data, const RTPHeader* header);
int num_packets_;
uint16_t seq_num_;
uint32_t timestamp_;
};
} // namespace webrtc
#endif // WEBRTC_MODULES_RTP_RTCP_SOURCE_FEC_TEST_HELPER_H_
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