1c6203192d
check that bitrates increase with cqlevel at global test case teardown, rather than after each individual test case. this allows the tests to be run out of order with --gtest_shuffle. Change-Id: I9e0d4e6a2d920a1f2fe9aee7b7876a3e7eb5d297
135 lines
4.1 KiB
C++
135 lines
4.1 KiB
C++
/*
|
|
* 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 <cmath>
|
|
#include <map>
|
|
#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 {
|
|
|
|
// CQ level range: [kCQLevelMin, kCQLevelMax).
|
|
const int kCQLevelMin = 4;
|
|
const int kCQLevelMax = 63;
|
|
const int kCQLevelStep = 8;
|
|
const unsigned int kCQTargetBitrate = 2000;
|
|
|
|
class CQTest : public ::libvpx_test::EncoderTest,
|
|
public ::libvpx_test::CodecTestWithParam<int> {
|
|
public:
|
|
// maps the cqlevel to the bitrate produced.
|
|
typedef std::map<int, uint32_t> BitrateMap;
|
|
|
|
static void SetUpTestCase() {
|
|
bitrates_.clear();
|
|
}
|
|
|
|
static void TearDownTestCase() {
|
|
ASSERT_TRUE(!HasFailure())
|
|
<< "skipping bitrate validation due to earlier failure.";
|
|
uint32_t prev_actual_bitrate = kCQTargetBitrate;
|
|
for (BitrateMap::const_iterator iter = bitrates_.begin();
|
|
iter != bitrates_.end(); ++iter) {
|
|
const uint32_t cq_actual_bitrate = iter->second;
|
|
EXPECT_LE(cq_actual_bitrate, prev_actual_bitrate)
|
|
<< "cq_level: " << iter->first
|
|
<< ", bitrate should decrease with increase in CQ level.";
|
|
prev_actual_bitrate = cq_actual_bitrate;
|
|
}
|
|
}
|
|
|
|
protected:
|
|
CQTest() : EncoderTest(GET_PARAM(0)), cq_level_(GET_PARAM(1)) {
|
|
init_flags_ = VPX_CODEC_USE_PSNR;
|
|
}
|
|
|
|
virtual ~CQTest() {}
|
|
|
|
virtual void SetUp() {
|
|
InitializeConfig();
|
|
SetMode(libvpx_test::kTwoPassGood);
|
|
}
|
|
|
|
virtual void BeginPassHook(unsigned int /*pass*/) {
|
|
file_size_ = 0;
|
|
psnr_ = 0.0;
|
|
n_frames_ = 0;
|
|
}
|
|
|
|
virtual void PreEncodeFrameHook(libvpx_test::VideoSource *video,
|
|
libvpx_test::Encoder *encoder) {
|
|
if (video->frame() == 1) {
|
|
if (cfg_.rc_end_usage == VPX_CQ) {
|
|
encoder->Control(VP8E_SET_CQ_LEVEL, cq_level_);
|
|
}
|
|
encoder->Control(VP8E_SET_CPUUSED, 3);
|
|
}
|
|
}
|
|
|
|
virtual void PSNRPktHook(const vpx_codec_cx_pkt_t *pkt) {
|
|
psnr_ += pow(10.0, pkt->data.psnr.psnr[0] / 10.0);
|
|
n_frames_++;
|
|
}
|
|
|
|
virtual void FramePktHook(const vpx_codec_cx_pkt_t *pkt) {
|
|
file_size_ += pkt->data.frame.sz;
|
|
}
|
|
|
|
double GetLinearPSNROverBitrate() const {
|
|
double avg_psnr = log10(psnr_ / n_frames_) * 10.0;
|
|
return pow(10.0, avg_psnr / 10.0) / file_size_;
|
|
}
|
|
|
|
int cq_level() const { return cq_level_; }
|
|
size_t file_size() const { return file_size_; }
|
|
int n_frames() const { return n_frames_; }
|
|
|
|
static BitrateMap bitrates_;
|
|
|
|
private:
|
|
int cq_level_;
|
|
size_t file_size_;
|
|
double psnr_;
|
|
int n_frames_;
|
|
};
|
|
|
|
CQTest::BitrateMap CQTest::bitrates_;
|
|
|
|
TEST_P(CQTest, LinearPSNRIsHigherForCQLevel) {
|
|
const vpx_rational timebase = { 33333333, 1000000000 };
|
|
cfg_.g_timebase = timebase;
|
|
cfg_.rc_target_bitrate = kCQTargetBitrate;
|
|
cfg_.g_lag_in_frames = 25;
|
|
|
|
cfg_.rc_end_usage = VPX_CQ;
|
|
libvpx_test::I420VideoSource video("hantro_collage_w352h288.yuv", 352, 288,
|
|
timebase.den, timebase.num, 0, 30);
|
|
ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
|
|
const double cq_psnr_lin = GetLinearPSNROverBitrate();
|
|
const unsigned int cq_actual_bitrate =
|
|
static_cast<unsigned int>(file_size()) * 8 * 30 / (n_frames() * 1000);
|
|
EXPECT_LE(cq_actual_bitrate, kCQTargetBitrate);
|
|
bitrates_[cq_level()] = cq_actual_bitrate;
|
|
|
|
// try targeting the approximate same bitrate with VBR mode
|
|
cfg_.rc_end_usage = VPX_VBR;
|
|
cfg_.rc_target_bitrate = cq_actual_bitrate;
|
|
ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
|
|
const double vbr_psnr_lin = GetLinearPSNROverBitrate();
|
|
EXPECT_GE(cq_psnr_lin, vbr_psnr_lin);
|
|
}
|
|
|
|
VP8_INSTANTIATE_TEST_CASE(CQTest,
|
|
::testing::Range(kCQLevelMin, kCQLevelMax,
|
|
kCQLevelStep));
|
|
} // namespace
|