60 lines
2.2 KiB
C++
60 lines
2.2 KiB
C++
/*
|
|
* Copyright (c) 2015 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 <memory>
|
|
|
|
#include "webrtc/base/checks.h"
|
|
#include "webrtc/modules/rtp_rtcp/source/byte_io.h"
|
|
#include "webrtc/modules/rtp_rtcp/source/producer_fec.h"
|
|
|
|
namespace webrtc {
|
|
|
|
void FuzzOneInput(const uint8_t* data, size_t size) {
|
|
ForwardErrorCorrection fec;
|
|
ProducerFec producer(&fec);
|
|
size_t i = 0;
|
|
if (size < 4)
|
|
return;
|
|
FecProtectionParams params = {
|
|
data[i++] % 128, static_cast<int>(data[i++] % 10), kFecMaskBursty};
|
|
producer.SetFecParameters(¶ms, 0);
|
|
uint16_t seq_num = data[i++];
|
|
|
|
while (i + 3 < size) {
|
|
size_t rtp_header_length = data[i++] % 10 + 12;
|
|
size_t payload_size = data[i++] % 10;
|
|
if (i + payload_size + rtp_header_length + 2 > size)
|
|
break;
|
|
std::unique_ptr<uint8_t[]> packet(
|
|
new uint8_t[payload_size + rtp_header_length]);
|
|
memcpy(packet.get(), &data[i], payload_size + rtp_header_length);
|
|
ByteWriter<uint16_t>::WriteBigEndian(&packet[2], seq_num++);
|
|
i += payload_size + rtp_header_length;
|
|
// Make sure sequence numbers are increasing.
|
|
const int kRedPayloadType = 98;
|
|
std::unique_ptr<RedPacket> red_packet(producer.BuildRedPacket(
|
|
packet.get(), payload_size, rtp_header_length, kRedPayloadType));
|
|
const bool protect = data[i++] % 2 == 1;
|
|
if (protect) {
|
|
producer.AddRtpPacketAndGenerateFec(packet.get(), payload_size,
|
|
rtp_header_length);
|
|
}
|
|
const size_t num_fec_packets = producer.NumAvailableFecPackets();
|
|
if (num_fec_packets > 0) {
|
|
std::vector<RedPacket*> fec_packets =
|
|
producer.GetFecPackets(kRedPayloadType, 99, 100, rtp_header_length);
|
|
RTC_CHECK_EQ(num_fec_packets, fec_packets.size());
|
|
for (RedPacket* fec_packet : fec_packets)
|
|
delete fec_packet;
|
|
}
|
|
}
|
|
}
|
|
} // namespace webrtc
|