Reland of Add QP for FFmpeg H264 decoder.

webrtc/modules/video_coding/codecs/h264/test/h264_impl_unittest.cc

Index: webrtc/modules/video_coding/codecs/h264/test/h264_impl_unittest.cc
diff --git a/webrtc/modules/video_coding/codecs/h264/test/h264_impl_unittest.cc b/webrtc/modules/video_coding/codecs/h264/test/h264_impl_unittest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..82992058c9a4b578a29fa912f501d0981eee162c
--- /dev/null
+++ b/webrtc/modules/video_coding/codecs/h264/test/h264_impl_unittest.cc
@@ -0,0 +1,76 @@
+/*
+ *  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 "webrtc/common_video/libyuv/include/webrtc_libyuv.h"
+#include "webrtc/modules/video_coding/codecs/h264/include/h264.h"
+#include "webrtc/modules/video_coding/codecs/test/video_codec_test.h"
+
+namespace webrtc {
+
+class TestH264Impl : public VideoCodecTest {
+ protected:
+  VideoEncoder* CreateEncoder() override {
+    return H264Encoder::Create(cricket::VideoCodec(cricket::kH264CodecName));
+  }
+
+  VideoDecoder* CreateDecoder() override { return H264Decoder::Create(); }
+
+  VideoCodec codec_settings() override {
+    VideoCodec codec_inst;
+    codec_inst.codecType = webrtc::kVideoCodecH264;
+    // If frame dropping is false, we get a warning that bitrate can't
+    // be controlled for RC_QUALITY_MODE; RC_BITRATE_MODE and RC_TIMESTAMP_MODE
+    codec_inst.H264()->frameDroppingOn = true;
+    return codec_inst;
+  }
+};
+
+#ifdef WEBRTC_VIDEOPROCESSOR_H264_TESTS
+#define MAYBE_EncodeDecode EncodeDecode
+#define MAYBE_DecodedQpEqualsEncodedQp DecodedQpEqualsEncodedQp
+#else
+#define MAYBE_EncodeDecode DISABLED_EncodeDecode
+#define MAYBE_DecodedQpEqualsEncodedQp DISABLED_DecodedQpEqualsEncodedQp
+#endif
+
+TEST_F(TestH264Impl, MAYBE_EncodeDecode) {
+  EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
+            encoder_->Encode(*input_frame_, nullptr, nullptr));
+  EncodedImage encoded_frame;
+  ASSERT_TRUE(WaitForEncodedFrame(&encoded_frame));
+  // First frame should be a key frame.
+  encoded_frame._frameType = kVideoFrameKey;
+  EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
+            decoder_->Decode(encoded_frame, false, nullptr));
+  std::unique_ptr<VideoFrame> decoded_frame;
+  rtc::Optional<uint8_t> decoded_qp;
+  ASSERT_TRUE(WaitForDecodedFrame(&decoded_frame, &decoded_qp));
+  ASSERT_TRUE(decoded_frame);
+  EXPECT_GT(I420PSNR(input_frame_.get(), decoded_frame.get()), 36);
+}
+
+TEST_F(TestH264Impl, MAYBE_DecodedQpEqualsEncodedQp) {
+  EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
+            encoder_->Encode(*input_frame_, nullptr, nullptr));
+  EncodedImage encoded_frame;
+  ASSERT_TRUE(WaitForEncodedFrame(&encoded_frame));
+  // First frame should be a key frame.
+  encoded_frame._frameType = kVideoFrameKey;
+  EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
+            decoder_->Decode(encoded_frame, false, nullptr));
+  std::unique_ptr<VideoFrame> decoded_frame;
+  rtc::Optional<uint8_t> decoded_qp;
+  ASSERT_TRUE(WaitForDecodedFrame(&decoded_frame, &decoded_qp));
+  ASSERT_TRUE(decoded_frame);
+  ASSERT_TRUE(decoded_qp);
+  EXPECT_EQ(encoded_frame.qp_, *decoded_qp);
+}
+
+}  // namespace webrtc