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