Adding third_party/openh264/src, build files and unittests

third_party/openh264/testing/h264_codec_tester.h

Index: third_party/openh264/testing/h264_codec_tester.h
diff --git a/third_party/openh264/testing/h264_codec_tester.h b/third_party/openh264/testing/h264_codec_tester.h
new file mode 100644
index 0000000000000000000000000000000000000000..a02457f4867a934655f12ee554e1ae2f53c16f47
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+++ b/third_party/openh264/testing/h264_codec_tester.h
@@ -0,0 +1,41 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef OPENH264_TESTING_H264_CODEC_TESTER_H_
+#define OPENH264_TESTING_H264_CODEC_TESTER_H_
+
+#include "openh264/src/codec/api/svc/codec_api.h"
+#include "openh264/src/codec/api/svc/codec_app_def.h"
+#include "openh264/src/codec/api/svc/codec_def.h"
+#include "openh264/testing/h264_encoder_impl.h"
+#include "openh264/testing/h264_decoder_impl.h"
+
+namespace openh264 {
+
+class H264CodecTester : public EncodedImageCallback,
+                        public DecodedImageCallback {
+ public:
+  H264CodecTester();
+  ~H264CodecTester();
+
+  bool Init(unsigned short width, unsigned short height);
+
+  bool Encode(const VideoFrame& frame);
+  VideoFrame* Decode();
+
+ private:
+  int32_t Encoded(const EncodedImage& encoded_image,
+                  const CodecSpecificInfo* codec_specific_info,
+                  const RTPFragmentationHeader* fragmentation) override;
+  int32_t Decoded(VideoFrame& decoded_image) override;
+
+  H264EncoderImpl encoder_;
+  H264DecoderImpl decoder_;
+  const EncodedImage* last_encoded_image_;
+  VideoFrame* last_decoded_image_;
+};
+
+}  // namespace openh264
+
+#endif  // OPENH264_TESTING_H264_CODEC_TESTER_H_