6ff9ebd070
This reverts commit 7325bc3917e6dd4c92e7a18fd879ba91f0b2851f. Reason for revert: FecTest.UlpfecTest is consistently failing. Original change's description: > Refactor FEC code to use COW buffers > > This refactoring helps to reduce unnecessary memcpy calls on the receive > side. > > This CL is the first stage of refactoring: it only replaces > |uint8 data[IP_PACKET_SIZE]| with |rtc::CopyOnWriteBuffer data| and does > necessary changes. > > A follow-up CL will remove length field of the Packet class. > > > Bug: webrtc:10750 > Change-Id: Ie233da83ff33f6370f511955e4c65d59522389a7 > Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/144881 > Reviewed-by: Artem Titov <titovartem@webrtc.org> > Reviewed-by: Stefan Holmer <stefan@webrtc.org> > Reviewed-by: Rasmus Brandt <brandtr@webrtc.org> > Commit-Queue: Ilya Nikolaevskiy <ilnik@webrtc.org> > Cr-Commit-Position: refs/heads/master@{#28539} TBR=brandtr@webrtc.org,ilnik@webrtc.org,asapersson@webrtc.org,stefan@webrtc.org,titovartem@webrtc.org Change-Id: I07c34256a76174f09a0d27eacbae6488e66f4b43 No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: webrtc:10750 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/145340 Reviewed-by: Qingsi Wang <qingsi@webrtc.org> Commit-Queue: Ilya Nikolaevskiy <ilnik@webrtc.org> Cr-Commit-Position: refs/heads/master@{#28545}
69 lines
2.5 KiB
C++
69 lines
2.5 KiB
C++
/*
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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 "modules/include/module_common_types_public.h"
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#include "modules/rtp_rtcp/source/byte_io.h"
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#include "modules/rtp_rtcp/source/fec_test_helper.h"
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#include "modules/rtp_rtcp/source/ulpfec_generator.h"
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#include "rtc_base/checks.h"
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namespace webrtc {
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namespace {
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constexpr uint8_t kFecPayloadType = 96;
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constexpr uint8_t kRedPayloadType = 97;
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} // namespace
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void FuzzOneInput(const uint8_t* data, size_t size) {
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UlpfecGenerator generator;
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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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generator.SetFecParameters(params);
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uint16_t seq_num = data[i++];
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uint16_t prev_seq_num = 0;
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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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// Make sure sequence numbers are increasing.
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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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const bool protect = data[i++] % 2 == 1;
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// Check the sequence numbers are monotonic. In rare case the packets number
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// may loop around and in the same FEC-protected group the packet sequence
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// number became out of order.
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if (protect && IsNewerSequenceNumber(seq_num, prev_seq_num) &&
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seq_num < prev_seq_num + kUlpfecMaxMediaPackets) {
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generator.AddRtpPacketAndGenerateFec(packet.get(), payload_size,
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rtp_header_length);
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prev_seq_num = seq_num;
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}
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const size_t num_fec_packets = generator.NumAvailableFecPackets();
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if (num_fec_packets > 0) {
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std::vector<std::unique_ptr<RedPacket>> fec_packets =
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generator.GetUlpfecPacketsAsRed(kRedPayloadType, kFecPayloadType,
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100);
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RTC_CHECK_EQ(num_fec_packets, fec_packets.size());
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}
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}
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}
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} // namespace webrtc
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