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Issue 1499093002: Create fuzzer tests for audio decoders (Closed) Base URL: https://chromium.googlesource.com/external/webrtc.git@master
Patch Set: Add a public_configs element to webrtc_fuzzer_main Created 5 years ago
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1 /*
2 * Copyright (c) 2015 The WebRTC project authors. All Rights Reserved.
3 *
4 * Use of this source code is governed by a BSD-style license
5 * that can be found in the LICENSE file in the root of the source
6 * tree. An additional intellectual property rights grant can be found
7 * in the file PATENTS. All contributing project authors may
8 * be found in the AUTHORS file in the root of the source tree.
9 */
10
11 #include "webrtc/test/fuzzers/audio_decoder_fuzzer.h"
12
13 #include "webrtc/base/checks.h"
14 #include "webrtc/modules/audio_coding/codecs/audio_decoder.h"
15
16 namespace webrtc {
17 namespace {
18 size_t PacketSizeFromTwoBytes(const uint8_t* data, size_t size) {
19 if (size < 2)
20 return 0;
21 return static_cast<size_t>((data[0] << 8) + data[1]);
22 }
23 } // namespace
24
25 // This function reads two bytes from the beginning of |data|, interprets them
26 // as the first packet length, and reads this many bytes if available. The
27 // payload is inserted into the decoder, and the process continues until no more
28 // data is available.
29 void FuzzAudioDecoder(const uint8_t* data,
30 size_t size,
31 AudioDecoder* decoder,
32 int sample_rate_hz,
33 size_t max_decoded_bytes,
34 int16_t* decoded) {
35 const uint8_t* data_ptr = data;
36 size_t remaining_size = size;
37 size_t packet_len = PacketSizeFromTwoBytes(data_ptr, remaining_size);
38 while (packet_len != 0 && packet_len <= remaining_size - 2) {
39 data_ptr += 2;
40 remaining_size -= 2;
41 AudioDecoder::SpeechType speech_type;
42 decoder->Decode(data_ptr, packet_len, sample_rate_hz, max_decoded_bytes,
43 decoded, &speech_type);
44 data_ptr += packet_len;
45 remaining_size -= packet_len;
46 packet_len = PacketSizeFromTwoBytes(data_ptr, remaining_size);
47 }
48 }
49 } // namespace webrtc
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