1/* 2 * Copyright (c) 2012 The WebM project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10#include <climits> 11#include <vector> 12#include "third_party/googletest/src/include/gtest/gtest.h" 13#include "test/codec_factory.h" 14#include "test/encode_test_driver.h" 15#include "test/i420_video_source.h" 16#include "test/util.h" 17 18namespace { 19 20class KeyframeTest : public ::libvpx_test::EncoderTest, 21 public ::libvpx_test::CodecTestWithParam<libvpx_test::TestMode> { 22 protected: 23 KeyframeTest() : EncoderTest(GET_PARAM(0)) {} 24 virtual ~KeyframeTest() {} 25 26 virtual void SetUp() { 27 InitializeConfig(); 28 SetMode(GET_PARAM(1)); 29 kf_count_ = 0; 30 kf_count_max_ = INT_MAX; 31 kf_do_force_kf_ = false; 32 set_cpu_used_ = 0; 33 } 34 35 virtual void PreEncodeFrameHook(::libvpx_test::VideoSource *video, 36 ::libvpx_test::Encoder *encoder) { 37 if (kf_do_force_kf_) 38 frame_flags_ = (video->frame() % 3) ? 0 : VPX_EFLAG_FORCE_KF; 39 if (set_cpu_used_ && video->frame() == 1) 40 encoder->Control(VP8E_SET_CPUUSED, set_cpu_used_); 41 } 42 43 virtual void FramePktHook(const vpx_codec_cx_pkt_t *pkt) { 44 if (pkt->data.frame.flags & VPX_FRAME_IS_KEY) { 45 kf_pts_list_.push_back(pkt->data.frame.pts); 46 kf_count_++; 47 abort_ |= kf_count_ > kf_count_max_; 48 } 49 } 50 51 bool kf_do_force_kf_; 52 int kf_count_; 53 int kf_count_max_; 54 std::vector<vpx_codec_pts_t> kf_pts_list_; 55 int set_cpu_used_; 56}; 57 58TEST_P(KeyframeTest, TestRandomVideoSource) { 59 // Validate that encoding the RandomVideoSource produces multiple keyframes. 60 // This validates the results of the TestDisableKeyframes test. 61 kf_count_max_ = 2; // early exit successful tests. 62 63 ::libvpx_test::RandomVideoSource video; 64 ASSERT_NO_FATAL_FAILURE(RunLoop(&video)); 65 66 // In realtime mode - auto placed keyframes are exceedingly rare, don't 67 // bother with this check if(GetParam() > 0) 68 if (GET_PARAM(1) > 0) 69 EXPECT_GT(kf_count_, 1); 70} 71 72TEST_P(KeyframeTest, TestDisableKeyframes) { 73 cfg_.kf_mode = VPX_KF_DISABLED; 74 kf_count_max_ = 1; // early exit failed tests. 75 76 ::libvpx_test::RandomVideoSource video; 77 ASSERT_NO_FATAL_FAILURE(RunLoop(&video)); 78 79 EXPECT_EQ(1, kf_count_); 80} 81 82TEST_P(KeyframeTest, TestForceKeyframe) { 83 cfg_.kf_mode = VPX_KF_DISABLED; 84 kf_do_force_kf_ = true; 85 86 ::libvpx_test::DummyVideoSource video; 87 ASSERT_NO_FATAL_FAILURE(RunLoop(&video)); 88 89 // verify that every third frame is a keyframe. 90 for (std::vector<vpx_codec_pts_t>::const_iterator iter = kf_pts_list_.begin(); 91 iter != kf_pts_list_.end(); ++iter) { 92 ASSERT_EQ(0, *iter % 3) << "Unexpected keyframe at frame " << *iter; 93 } 94} 95 96TEST_P(KeyframeTest, TestKeyframeMaxDistance) { 97 cfg_.kf_max_dist = 25; 98 99 ::libvpx_test::DummyVideoSource video; 100 ASSERT_NO_FATAL_FAILURE(RunLoop(&video)); 101 102 // verify that keyframe interval matches kf_max_dist 103 for (std::vector<vpx_codec_pts_t>::const_iterator iter = kf_pts_list_.begin(); 104 iter != kf_pts_list_.end(); ++iter) { 105 ASSERT_EQ(0, *iter % 25) << "Unexpected keyframe at frame " << *iter; 106 } 107} 108 109TEST_P(KeyframeTest, TestAutoKeyframe) { 110 cfg_.kf_mode = VPX_KF_AUTO; 111 kf_do_force_kf_ = false; 112 113 // Force a deterministic speed step in Real Time mode, as the faster modes 114 // may not produce a keyframe like we expect. This is necessary when running 115 // on very slow environments (like Valgrind). The step -11 was determined 116 // experimentally as the fastest mode that still throws the keyframe. 117 if (deadline_ == VPX_DL_REALTIME) 118 set_cpu_used_ = -11; 119 120 // This clip has a cut scene every 30 frames -> Frame 0, 30, 60, 90, 120. 121 // I check only the first 40 frames to make sure there's a keyframe at frame 122 // 0 and 30. 123 ::libvpx_test::I420VideoSource video("hantro_collage_w352h288.yuv", 352, 288, 124 30, 1, 0, 40); 125 126 ASSERT_NO_FATAL_FAILURE(RunLoop(&video)); 127 128 // In realtime mode - auto placed keyframes are exceedingly rare, don't 129 // bother with this check 130 if (GET_PARAM(1) > 0) 131 EXPECT_EQ(2u, kf_pts_list_.size()) << " Not the right number of keyframes "; 132 133 // Verify that keyframes match the file keyframes in the file. 134 for (std::vector<vpx_codec_pts_t>::const_iterator iter = kf_pts_list_.begin(); 135 iter != kf_pts_list_.end(); ++iter) { 136 if (deadline_ == VPX_DL_REALTIME && *iter > 0) 137 EXPECT_EQ(0, (*iter - 1) % 30) << "Unexpected keyframe at frame " 138 << *iter; 139 else 140 EXPECT_EQ(0, *iter % 30) << "Unexpected keyframe at frame " << *iter; 141 } 142} 143 144VP8_INSTANTIATE_TEST_CASE(KeyframeTest, ALL_TEST_MODES); 145} // namespace 146