1 files changed, 45 insertions, 0 deletions
diff --git a/third_party/libwebrtc/test/fuzzers/audio_decoder_pcm_fuzzer.cc b/third_party/libwebrtc/test/fuzzers/audio_decoder_pcm_fuzzer.cc
new file mode 100644
index 0000000000..dbfcaf9976
--- /dev/null
+++ b/third_party/libwebrtc/test/fuzzers/audio_decoder_pcm_fuzzer.cc
@@ -0,0 +1,45 @@
+/*
+ *  Copyright (c) 2022 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 <memory>
+
+#include "modules/audio_coding/codecs/g711/audio_decoder_pcm.h"
+#include "test/fuzzers/audio_decoder_fuzzer.h"
+
+namespace webrtc {
+void FuzzOneInput(const uint8_t* data, size_t size) {
+  if (size > 10000 || size < 2) {
+    return;
+  }
+
+  const size_t num_channels = data[0] % 16 + 1;
+
+  std::unique_ptr<AudioDecoder> dec;
+  if (data[1] % 2) {
+    dec = std::make_unique<AudioDecoderPcmU>(num_channels);
+  } else {
+    dec = std::make_unique<AudioDecoderPcmA>(num_channels);
+  }
+
+  // Two first bytes of the data are used. Move forward.
+  data += 2;
+  size -= 2;
+
+  // Allocate a maximum output size of 100 ms.
+  const size_t allocated_ouput_size_samples =
+      dec->SampleRateHz() * num_channels / 10;
+  std::unique_ptr<int16_t[]> output =
+      std::make_unique<int16_t[]>(allocated_ouput_size_samples);
+  FuzzAudioDecoder(DecoderFunctionType::kNormalDecode, data, size, dec.get(),
+                   dec->SampleRateHz(),
+                   allocated_ouput_size_samples * sizeof(int16_t),
+                   output.get());
+}
+}  // namespace webrtc