902bc24b6f
Note that this needs to be done with a work directory that supports fuzzer builds, otherwise IWYU will bail out with complaints about find-bad-constructs and raw-ptr-plugin Some manual work was required to resolve the TaskQueueFactory which is forward-declared by environment which required a manual include of the header file. The DcSctp packet fuzzer was also updated use the disable_checksum_verification option which was moved to the DcSctpOptions struct. vp9_encoder_references_fuzzer was trying to include libvpx includes which had to be reverted. BUG=webrtc:42226242 Change-Id: I9fdcf979e73fdee77106c4583faff21ca7abf19f Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/375840 Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org> Reviewed-by: Danil Chapovalov <danilchap@webrtc.org> Commit-Queue: Philipp Hancke <phancke@meta.com> Cr-Commit-Position: refs/heads/main@{#43873}
69 lines
2.4 KiB
C++
69 lines
2.4 KiB
C++
/*
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* Copyright (c) 2017 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 <math.h>
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#include <string.h>
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#include <bitset>
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#include <cstdint>
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#include <vector>
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#include "api/audio/audio_processing.h"
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#include "api/audio/echo_detector_creator.h"
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#include "api/scoped_refptr.h"
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#include "rtc_base/checks.h"
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namespace webrtc {
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void FuzzOneInput(const uint8_t* data, size_t size) {
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// Number of times to update the echo detector.
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constexpr size_t kNrOfUpdates = 7;
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// Each round of updates requires a call to both AnalyzeRender and
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// AnalyzeCapture, so the amount of needed input bytes doubles. Also, two
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// bytes are used to set the call order.
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constexpr size_t kNrOfNeededInputBytes = 2 * kNrOfUpdates * sizeof(float) + 2;
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// The maximum audio energy that an audio frame can have is equal to the
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// number of samples in the frame multiplied by 2^30. We use a single sample
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// to represent an audio frame in this test, so it should have a maximum value
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// equal to the square root of that value.
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const float maxFuzzedValue = sqrtf(20 * 48) * 32768;
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if (size < kNrOfNeededInputBytes) {
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return;
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}
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size_t read_idx = 0;
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// Use the first two bytes to choose the call order.
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uint16_t call_order_int;
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memcpy(&call_order_int, &data[read_idx], 2);
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read_idx += 2;
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std::bitset<16> call_order(call_order_int);
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rtc::scoped_refptr<EchoDetector> echo_detector = CreateEchoDetector();
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std::vector<float> input(1);
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// Call AnalyzeCaptureAudio once to prevent the flushing of the buffer.
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echo_detector->AnalyzeCaptureAudio(input);
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for (size_t i = 0; i < 2 * kNrOfUpdates; ++i) {
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// Convert 4 input bytes to a float.
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RTC_DCHECK_LE(read_idx + sizeof(float), size);
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memcpy(input.data(), &data[read_idx], sizeof(float));
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read_idx += sizeof(float);
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if (!isfinite(input[0]) || fabs(input[0]) > maxFuzzedValue) {
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// Ignore infinity, nan values and values that are unrealistically large.
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continue;
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}
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if (call_order[i]) {
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echo_detector->AnalyzeRenderAudio(input);
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} else {
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echo_detector->AnalyzeCaptureAudio(input);
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}
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}
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}
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} // namespace webrtc
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