1 files changed, 116 insertions, 0 deletions
diff --git a/third_party/libwebrtc/test/fuzzers/frame_buffer2_fuzzer.cc b/third_party/libwebrtc/test/fuzzers/frame_buffer2_fuzzer.cc
new file mode 100644
index 0000000000..ec1bbbb4c1
--- /dev/null
+++ b/third_party/libwebrtc/test/fuzzers/frame_buffer2_fuzzer.cc
@@ -0,0 +1,116 @@
+/*
+ *  Copyright (c) 2017 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 "api/task_queue/task_queue_base.h"
+#include "modules/video_coding/frame_buffer2.h"
+#include "modules/video_coding/timing/timing.h"
+#include "test/scoped_key_value_config.h"
+#include "test/time_controller/simulated_time_controller.h"
+
+namespace webrtc {
+
+namespace {
+
+// When DataReader runs out of data provided in the constructor it will
+// just set/return 0 instead.
+struct DataReader {
+  DataReader(const uint8_t* data, size_t size) : data_(data), size_(size) {}
+
+  void CopyTo(void* destination, size_t dest_size) {
+    memset(destination, 0, dest_size);
+
+    size_t bytes_to_copy = std::min(size_ - offset_, dest_size);
+    memcpy(destination, data_ + offset_, bytes_to_copy);
+    offset_ += bytes_to_copy;
+  }
+
+  template <typename T>
+  T GetNum() {
+    T res;
+    if (offset_ + sizeof(res) < size_) {
+      memcpy(&res, data_ + offset_, sizeof(res));
+      offset_ += sizeof(res);
+      return res;
+    }
+
+    offset_ = size_;
+    return T(0);
+  }
+
+  bool MoreToRead() { return offset_ < size_; }
+
+  const uint8_t* const data_;
+  size_t size_;
+  size_t offset_ = 0;
+};
+
+class FuzzyFrameObject : public EncodedFrame {
+ public:
+  FuzzyFrameObject() {}
+  ~FuzzyFrameObject() {}
+
+  int64_t ReceivedTime() const override { return 0; }
+  int64_t RenderTime() const override { return _renderTimeMs; }
+};
+}  // namespace
+
+void FuzzOneInput(const uint8_t* data, size_t size) {
+  if (size > 10000) {
+    return;
+  }
+  DataReader reader(data, size);
+  GlobalSimulatedTimeController time_controller(Timestamp::Seconds(0));
+  std::unique_ptr<TaskQueueBase, TaskQueueDeleter> task_queue =
+      time_controller.GetTaskQueueFactory()->CreateTaskQueue(
+          "time_tq", TaskQueueFactory::Priority::NORMAL);
+  test::ScopedKeyValueConfig field_trials;
+  VCMTiming timing(time_controller.GetClock(), field_trials);
+  video_coding::FrameBuffer frame_buffer(time_controller.GetClock(), &timing,
+                                         field_trials);
+
+  bool next_frame_task_running = false;
+
+  while (reader.MoreToRead()) {
+    if (reader.GetNum<uint8_t>() % 2) {
+      std::unique_ptr<FuzzyFrameObject> frame(new FuzzyFrameObject());
+      frame->SetId(reader.GetNum<int64_t>());
+      frame->SetSpatialIndex(reader.GetNum<uint8_t>() % 5);
+      frame->SetTimestamp(reader.GetNum<uint32_t>());
+      frame->num_references =
+          reader.GetNum<uint8_t>() % EncodedFrame::kMaxFrameReferences;
+
+      for (size_t r = 0; r < frame->num_references; ++r)
+        frame->references[r] = reader.GetNum<int64_t>();
+
+      frame_buffer.InsertFrame(std::move(frame));
+    } else {
+      if (!next_frame_task_running) {
+        next_frame_task_running = true;
+        bool keyframe_required = reader.GetNum<uint8_t>() % 2;
+        int max_wait_time_ms = reader.GetNum<uint8_t>();
+        task_queue->PostTask([&task_queue, &frame_buffer,
+                              &next_frame_task_running, keyframe_required,
+                              max_wait_time_ms] {
+          frame_buffer.NextFrame(
+              max_wait_time_ms, keyframe_required, task_queue.get(),
+              [&next_frame_task_running](std::unique_ptr<EncodedFrame> frame) {
+                next_frame_task_running = false;
+              });
+        });
+      }
+    }
+
+    time_controller.AdvanceTime(TimeDelta::Millis(reader.GetNum<uint8_t>()));
+  }
+}
+
+}  // namespace webrtc