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/*
* 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 "webrtc/base/checks.h"
#include "webrtc/base/scoped_ptr.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, data[i++] % 1,
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;
rtc::scoped_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;
rtc::scoped_ptr<RedPacket> red_packet(producer.BuildRedPacket(
packet.get(), payload_size, rtp_header_length, kRedPayloadType));
bool protect = static_cast<bool>(data[i++] % 2);
if (protect) {
producer.AddRtpPacketAndGenerateFec(packet.get(), payload_size,
rtp_header_length);
}
uint16_t num_fec_packets = producer.NumAvailableFecPackets();
std::vector<RedPacket*> fec_packets;
if (num_fec_packets > 0) {
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
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