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// Copyright (c) 2012 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.
#include "remoting/codec/video_decoder_vp8.h"
#include "media/base/video_frame.h"
#include "remoting/codec/codec_test.h"
#include "remoting/codec/video_encoder_vp8.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/webrtc/modules/desktop_capture/desktop_geometry.h"
namespace remoting {
class VideoDecoderVp8Test : public testing::Test {
protected:
VideoEncoderVp8 encoder_;
VideoDecoderVp8 decoder_;
void TestGradient(int screen_width, int screen_height,
int view_width, int view_height,
double max_error_limit, double mean_error_limit) {
TestVideoEncoderDecoderGradient(
&encoder_, &decoder_,
webrtc::DesktopSize(screen_width, screen_height),
webrtc::DesktopSize(view_width, view_height),
max_error_limit, mean_error_limit);
}
};
TEST_F(VideoDecoderVp8Test, VideoEncodeAndDecode) {
TestVideoEncoderDecoder(&encoder_, &decoder_, false);
}
// Check that encoding and decoding a particular frame doesn't change the
// frame too much. The frame used is a gradient, which does not contain sharp
// transitions, so encoding lossiness should not be too high.
TEST_F(VideoDecoderVp8Test, Gradient) {
TestGradient(320, 240, 320, 240, 0.04, 0.02);
}
TEST_F(VideoDecoderVp8Test, GradientScaleUpEvenToEven) {
TestGradient(320, 240, 640, 480, 0.04, 0.02);
}
TEST_F(VideoDecoderVp8Test, GradientScaleUpEvenToOdd) {
TestGradient(320, 240, 641, 481, 0.04, 0.02);
}
TEST_F(VideoDecoderVp8Test, GradientScaleUpOddToEven) {
TestGradient(321, 241, 640, 480, 0.04, 0.02);
}
TEST_F(VideoDecoderVp8Test, GradientScaleUpOddToOdd) {
TestGradient(321, 241, 641, 481, 0.04, 0.02);
}
TEST_F(VideoDecoderVp8Test, GradientScaleDownEvenToEven) {
TestGradient(320, 240, 160, 120, 0.04, 0.02);
}
TEST_F(VideoDecoderVp8Test, GradientScaleDownEvenToOdd) {
// The maximum error is non-deterministic. The mean error is not too high,
// which suggests that the problem is restricted to a small area of the output
// image. See crbug.com/139437 and crbug.com/139633.
TestGradient(320, 240, 161, 121, 1.0, 0.02);
}
TEST_F(VideoDecoderVp8Test, GradientScaleDownOddToEven) {
TestGradient(321, 241, 160, 120, 0.04, 0.02);
}
TEST_F(VideoDecoderVp8Test, GradientScaleDownOddToOdd) {
TestGradient(321, 241, 161, 121, 0.04, 0.02);
}
} // namespace remoting
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