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/*
* 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/util.h"
namespace {
class KeyframeTest
: public ::libvpx_test::EncoderTest,
public ::libvpx_test::CodecTestWithParam<libvpx_test::TestMode> {
protected:
KeyframeTest() : EncoderTest(GET_PARAM(0)) {}
virtual ~KeyframeTest() {}
virtual void SetUp() {
InitializeConfig();
SetMode(GET_PARAM(1));
kf_count_ = 0;
kf_count_max_ = INT_MAX;
kf_do_force_kf_ = false;
set_cpu_used_ = 0;
}
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 (GET_PARAM(1) > 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 (GET_PARAM(1) > 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;
}
}
VP8_INSTANTIATE_TEST_CASE(KeyframeTest, ALL_TEST_MODES);
} // namespace