resize_test.cc

/*
 *  Copyright (c) 2012 The WebM 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 <climits>
#include <vector>
#include "third_party/googletest/src/include/gtest/gtest.h"
#include "test/codec_factory.h"
#include "test/encode_test_driver.h"
#include "test/i420_video_source.h"
#include "test/video_source.h"
#include "test/util.h"

namespace {

const unsigned int kInitialWidth = 320;
const unsigned int kInitialHeight = 240;

unsigned int ScaleForFrameNumber(unsigned int frame, unsigned int val) {
  if (frame < 10)
    return val;
  if (frame < 20)
    return val / 2;
  if (frame < 30)
    return val * 2 / 3;
  if (frame < 40)
    return val / 4;
  if (frame < 50)
    return val * 7 / 8;
  return val;
}

class ResizingVideoSource : public ::libvpx_test::DummyVideoSource {
 public:
  ResizingVideoSource() {
    SetSize(kInitialWidth, kInitialHeight);
    limit_ = 60;
  }

 protected:
  virtual void Next() {
    ++frame_;
    SetSize(ScaleForFrameNumber(frame_, kInitialWidth),
            ScaleForFrameNumber(frame_, kInitialHeight));
    FillFrame();
  }
};

class ResizeTest : public ::libvpx_test::EncoderTest,
  public ::libvpx_test::CodecTestWithParam<libvpx_test::TestMode> {
 protected:
  ResizeTest() : EncoderTest(GET_PARAM(0)) {}

  struct FrameInfo {
    FrameInfo(vpx_codec_pts_t _pts, unsigned int _w, unsigned int _h)
        : pts(_pts), w(_w), h(_h) {}

    vpx_codec_pts_t pts;
    unsigned int    w;
    unsigned int    h;
  };

  virtual void SetUp() {
    InitializeConfig();
    SetMode(GET_PARAM(1));