blob: 9c0a3230567df67530d4d1ce96dd5cc84ef552de [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 "webrtc/base/basictypes.h"
#include "webrtc/base/random.h"
#include "webrtc/modules/include/module_common_types.h"
#include "webrtc/modules/rtp_rtcp/source/forward_error_correction.h"
namespace webrtc {
namespace test {
// Needed to not clash with another webrtc::FrameGenerator.
namespace fec {
struct RawRtpPacket : public ForwardErrorCorrection::Packet {
WebRtcRTPHeader header;
class FrameGenerator {
void NewFrame(int num_packets);
uint16_t NextSeqNum();
RawRtpPacket* NextPacket(int offset, size_t length);
// Creates a new RtpPacket with the RED header added to the packet.
RawRtpPacket* BuildMediaRedPacket(const RawRtpPacket* 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|.
RawRtpPacket* BuildFecRedPacket(const ForwardErrorCorrection::Packet* packet);
void SetRedHeader(ForwardErrorCorrection::Packet* red_packet,
uint8_t payload_type,
size_t header_length) const;
static void BuildRtpHeader(uint8_t* data, const RTPHeader* header);
int num_packets_;
uint16_t seq_num_;
uint32_t timestamp_;
class MediaPacketGenerator {
MediaPacketGenerator(uint32_t min_packet_size,
uint32_t max_packet_size,
uint32_t ssrc,
Random* random)
: min_packet_size_(min_packet_size),
random_(random) {}
// Construct the media packets, up to |num_media_packets| packets.
ForwardErrorCorrection::PacketList ConstructMediaPackets(
int num_media_packets,
uint16_t start_seq_num);
ForwardErrorCorrection::PacketList ConstructMediaPackets(
int num_media_packets);
uint16_t GetFecSeqNum();
uint32_t min_packet_size_;
uint32_t max_packet_size_;
uint32_t ssrc_;
Random* random_;
ForwardErrorCorrection::PacketList media_packets_;
uint16_t fec_seq_num_;
} // namespace fec
} // namespace test
} // namespace webrtc