isobmff: add fuzzing to STTS atom parser

Author: panayotovmarko

fuzz/Makefile

@@ -6,7 +6,7 @@ CONVERTER = ./converter.py
 RUNS ?= 100
 
 # List of fuzzers
-FUZZERS = Parser META FTYP MVHD HDLR TKHD MDHD DREF STSD HVC1 HVCC
+FUZZERS = Parser META FTYP MVHD HDLR TKHD MDHD DREF STSD HVC1 HVCC STTS
 
 # Default target
 all: $(addsuffix _fuzzer.cpp, $(FUZZERS))

fuzz/STTS_fuzzer.cpp

@@ -0,0 +1,30 @@
+/*
+ *  Copyright (c) Meta Platforms, Inc. and its affiliates.
+ */
+
+// This file was auto-generated using fuzz/converter.py from
+// STTS_unittest.cpp.
+// Do not edit directly.
+
+#include <ISOBMFF.hpp>                  // for various
+#include <BinaryDataStream.hpp> // for BinaryDataStream
+#include <Parser.hpp>           // for Parser
+
+
+// libfuzzer infra to test the fuzz target
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
+  const std::vector<uint8_t> buffer_vector = {data, data + size};
+  {
+  ISOBMFF::BinaryDataStream stream(buffer_vector);
+  ISOBMFF::Parser parser;
+  std::shared_ptr<ISOBMFF::Box> box = parser.CreateBox("stts");
+  try {
+    if (box != nullptr) {
+      box->ReadData(parser, stream);
+    }
+  } catch (std::exception &e) {
+    fprintf(stderr, "Caught exception: %s\n", e.what());
+  }
+  }
+  return 0;
+}