/* *  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 "test/encode_test_driver.h"#include "test/i420_video_source.h"#include "third_party/googletest/src/include/gtest/gtest.h" namespace { class KeyframeTest : public ::libvpx_test::EncoderTest,    public ::testing::TestWithParam<enum libvpx_test::TestMode> { protected:  virtual void SetUp() {    InitializeConfig();    SetMode(GetParam());    kf_count_ = 0;    kf_count_max_ = INT_MAX;    kf_do_force_kf_ = false;    set_cpu_used_ = 0;  }   virtual bool Continue() const {    return !HasFatalFailure() && !abort_;  }   virtual void PreEncodeFrameHook(::libvpx_test::VideoSource *video,                                  ::libvpx_test::Encoder *encoder) {    if (kf_do_force_kf_)      frame_flags_ = (video->frame() % 3) ? 0 : VPX_EFLAG_FORCE_KF;    if (set_cpu_used_ && video->frame() == 1)      encoder->Control(VP8E_SET_CPUUSED, set_cpu_used_);  }   virtual void FramePktHook(const vpx_codec_cx_pkt_t *pkt) {    if (pkt->data.frame.flags & VPX_FRAME_IS_KEY) {      kf_pts_list_.push_back(pkt->data.frame.pts);      kf_count_++;      abort_ |= kf_count_ > kf_count_max_;    }  }   bool kf_do_force_kf_;  int kf_count_;  int kf_count_max_;  std::vector<vpx_codec_pts_t> kf_pts_list_;  int set_cpu_used_;}; TEST_P(KeyframeTest, TestRandomVideoSource) {  // Validate that encoding the RandomVideoSource produces multiple keyframes.  // This validates the results of the TestDisableKeyframes test.  kf_count_max_ = 2;  // early exit successful tests.   ::libvpx_test::RandomVideoSource video;  ASSERT_NO_FATAL_FAILURE(RunLoop(&video));   // In realtime mode - auto placed keyframes are exceedingly rare,  don't  // bother with this check   if(GetParam() > 0)  if(GetParam() > 0)    EXPECT_GT(kf_count_, 1);} TEST_P(KeyframeTest, TestDisableKeyframes) {  cfg_.kf_mode = VPX_KF_DISABLED;  kf_count_max_ = 1;  // early exit failed tests.   ::libvpx_test::RandomVideoSource video;  ASSERT_NO_FATAL_FAILURE(RunLoop(&video));   EXPECT_EQ(1, kf_count_);} TEST_P(KeyframeTest, TestForceKeyframe) {  cfg_.kf_mode = VPX_KF_DISABLED;  kf_do_force_kf_ = true;   ::libvpx_test::DummyVideoSource video;  ASSERT_NO_FATAL_FAILURE(RunLoop(&video));   // verify that every third frame is a keyframe.  for (std::vector<vpx_codec_pts_t>::const_iterator iter = kf_pts_list_.begin();       iter != kf_pts_list_.end(); ++iter) {    ASSERT_EQ(0, *iter % 3) << "Unexpected keyframe at frame " << *iter;  }} TEST_P(KeyframeTest, TestKeyframeMaxDistance) {  cfg_.kf_max_dist = 25;   ::libvpx_test::DummyVideoSource video;  ASSERT_NO_FATAL_FAILURE(RunLoop(&video));   // verify that keyframe interval matches kf_max_dist  for (std::vector<vpx_codec_pts_t>::const_iterator iter = kf_pts_list_.begin();       iter != kf_pts_list_.end(); ++iter) {    ASSERT_EQ(0, *iter % 25) << "Unexpected keyframe at frame " << *iter;  }} TEST_P(KeyframeTest, TestAutoKeyframe) {  cfg_.kf_mode = VPX_KF_AUTO;  kf_do_force_kf_ = false;   // Force a deterministic speed step in Real Time mode, as the faster modes  // may not produce a keyframe like we expect. This is necessary when running  // on very slow environments (like Valgrind). The step -11 was determined  // experimentally as the fastest mode that still throws the keyframe.  if (deadline_ == VPX_DL_REALTIME)    set_cpu_used_ = -11;   // This clip has a cut scene every 30 frames -> Frame 0, 30, 60, 90, 120.  // I check only the first 40 frames to make sure there's a keyframe at frame  // 0 and 30.  ::libvpx_test::I420VideoSource video("hantro_collage_w352h288.yuv", 352, 288,                                       30, 1, 0, 40);   ASSERT_NO_FATAL_FAILURE(RunLoop(&video));   // In realtime mode - auto placed keyframes are exceedingly rare,  don't  // bother with this check  if(GetParam() > 0)    EXPECT_EQ(2u, kf_pts_list_.size()) << " Not the right number of keyframes ";   // Verify that keyframes match the file keyframes in the file.  for (std::vector<vpx_codec_pts_t>::const_iterator iter = kf_pts_list_.begin();       iter != kf_pts_list_.end(); ++iter) {     if (deadline_ == VPX_DL_REALTIME && *iter > 0)      EXPECT_EQ(0, (*iter - 1) % 30) << "Unexpected keyframe at frame "        << *iter;    else      EXPECT_EQ(0, *iter % 30) << "Unexpected keyframe at frame " << *iter;  }} INSTANTIATE_TEST_CASE_P(AllModes, KeyframeTest, ALL_TEST_MODES);}  // namespace