60 lines
2.2 KiB
C++
60 lines
2.2 KiB
C++
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/*
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* Copyright (c) 2015 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include <memory>
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#include "webrtc/base/checks.h"
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#include "webrtc/modules/rtp_rtcp/source/byte_io.h"
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#include "webrtc/modules/rtp_rtcp/source/producer_fec.h"
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namespace webrtc {
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void FuzzOneInput(const uint8_t* data, size_t size) {
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ForwardErrorCorrection fec;
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ProducerFec producer(&fec);
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size_t i = 0;
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if (size < 4)
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return;
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FecProtectionParams params = {
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data[i++] % 128, static_cast<int>(data[i++] % 10), kFecMaskBursty};
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producer.SetFecParameters(¶ms, 0);
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uint16_t seq_num = data[i++];
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while (i + 3 < size) {
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size_t rtp_header_length = data[i++] % 10 + 12;
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size_t payload_size = data[i++] % 10;
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if (i + payload_size + rtp_header_length + 2 > size)
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break;
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std::unique_ptr<uint8_t[]> packet(
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new uint8_t[payload_size + rtp_header_length]);
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memcpy(packet.get(), &data[i], payload_size + rtp_header_length);
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ByteWriter<uint16_t>::WriteBigEndian(&packet[2], seq_num++);
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i += payload_size + rtp_header_length;
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// Make sure sequence numbers are increasing.
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const int kRedPayloadType = 98;
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std::unique_ptr<RedPacket> red_packet(producer.BuildRedPacket(
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packet.get(), payload_size, rtp_header_length, kRedPayloadType));
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const bool protect = data[i++] % 2 == 1;
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if (protect) {
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producer.AddRtpPacketAndGenerateFec(packet.get(), payload_size,
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rtp_header_length);
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}
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const size_t num_fec_packets = producer.NumAvailableFecPackets();
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if (num_fec_packets > 0) {
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std::vector<RedPacket*> fec_packets =
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producer.GetFecPackets(kRedPayloadType, 99, 100, rtp_header_length);
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RTC_CHECK_EQ(num_fec_packets, fec_packets.size());
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for (RedPacket* fec_packet : fec_packets)
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delete fec_packet;
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}
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}
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}
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} // namespace webrtc
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