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// Copyright 2013 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.
// Joint encoder and decoder testing.
// These tests operate directly on the VP8 encoder and decoder, not the
// transport layer, and are targeted at validating the bit stream.
#include <gtest/gtest.h>
#include "base/memory/scoped_ptr.h"
#include "media/cast/test/video_utility.h"
#include "media/cast/video_receiver/codecs/vp8/vp8_decoder.h"
#include "media/cast/video_sender/codecs/vp8/vp8_encoder.h"
namespace media {
namespace cast {
namespace {
const int kWidth = 1280;
const int kHeight = 720;
const int kStartbitrate = 4000000;
const int kMaxQp = 54;
const int kMinQp = 4;
const int kMaxFrameRate = 30;
} // namespace
class EncodeDecodeTest : public ::testing::Test {
protected:
EncodeDecodeTest() {
encoder_config_.max_number_of_video_buffers_used = 1;
encoder_config_.number_of_cores = 1;
encoder_config_.width = kWidth;
encoder_config_.height = kHeight;
encoder_config_.start_bitrate = kStartbitrate;
encoder_config_.min_qp = kMaxQp;
encoder_config_.min_qp = kMinQp;
encoder_config_.max_frame_rate = kMaxFrameRate;
int max_unacked_frames = 1;
encoder_.reset(new Vp8Encoder(encoder_config_, max_unacked_frames));
// Initialize to use one core.
decoder_.reset(new Vp8Decoder(1));
}
virtual void SetUp() {
// Create test frame.
int start_value = 10; // Random value to start from.
video_frame_.reset(new I420VideoFrame());
video_frame_->width = encoder_config_.width;
video_frame_->height = encoder_config_.height;
PopulateVideoFrame(video_frame_.get(), start_value);
}
virtual void TearDown() {
delete [] video_frame_->y_plane.data;
delete [] video_frame_->u_plane.data;
delete [] video_frame_->v_plane.data;
}
void Compare(const I420VideoFrame& original_image,
const I420VideoFrame& decoded_image) {
// Compare resolution.
EXPECT_EQ(original_image.width, decoded_image.width);
EXPECT_EQ(original_image.height, decoded_image.height);
// Compare data.
EXPECT_GT(I420PSNR(original_image, decoded_image), 40.0);
}
VideoSenderConfig encoder_config_;
scoped_ptr<Vp8Encoder> encoder_;
scoped_ptr<Vp8Decoder> decoder_;
scoped_ptr<I420VideoFrame> video_frame_;
};
TEST_F(EncodeDecodeTest, BasicEncodeDecode) {
EncodedVideoFrame encoded_frame;
I420VideoFrame decoded_frame;
// Encode frame.
encoder_->Encode(*(video_frame_.get()), &encoded_frame);
// Decode frame.
decoder_->Decode(encoded_frame, &decoded_frame);
// Validate data.
Compare(*(video_frame_.get()), decoded_frame);
}
} // namespace cast
} // namespace media
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