135 строки
4.0 KiB
C++
135 строки
4.0 KiB
C++
/*
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* Copyright (c) 2013 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "third_party/googletest/src/include/gtest/gtest.h"
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#include "./vpx_config.h"
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#include "test/codec_factory.h"
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#include "test/encode_test_driver.h"
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#include "test/i420_video_source.h"
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#include "test/util.h"
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#include "test/y4m_video_source.h"
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namespace {
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const int kMaxPsnr = 100;
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class LosslessTest : public ::libvpx_test::EncoderTest,
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public ::libvpx_test::CodecTestWithParam<libvpx_test::TestMode> {
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protected:
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LosslessTest()
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: EncoderTest(GET_PARAM(0)),
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psnr_(kMaxPsnr),
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nframes_(0),
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encoding_mode_(GET_PARAM(1)) {
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}
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virtual ~LosslessTest() {}
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virtual void SetUp() {
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InitializeConfig();
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SetMode(encoding_mode_);
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}
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virtual void PreEncodeFrameHook(::libvpx_test::VideoSource *video,
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::libvpx_test::Encoder *encoder) {
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if (video->frame() == 1) {
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// Only call Control if quantizer > 0 to verify that using quantizer
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// alone will activate lossless
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if (cfg_.rc_max_quantizer > 0 || cfg_.rc_min_quantizer > 0) {
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encoder->Control(VP9E_SET_LOSSLESS, 1);
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}
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}
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}
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virtual void BeginPassHook(unsigned int /*pass*/) {
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psnr_ = kMaxPsnr;
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nframes_ = 0;
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}
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virtual void PSNRPktHook(const vpx_codec_cx_pkt_t *pkt) {
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if (pkt->data.psnr.psnr[0] < psnr_)
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psnr_= pkt->data.psnr.psnr[0];
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}
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double GetMinPsnr() const {
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return psnr_;
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}
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private:
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double psnr_;
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unsigned int nframes_;
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libvpx_test::TestMode encoding_mode_;
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};
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TEST_P(LosslessTest, TestLossLessEncoding) {
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const vpx_rational timebase = { 33333333, 1000000000 };
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cfg_.g_timebase = timebase;
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cfg_.rc_target_bitrate = 2000;
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cfg_.g_lag_in_frames = 25;
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cfg_.rc_min_quantizer = 0;
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cfg_.rc_max_quantizer = 0;
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init_flags_ = VPX_CODEC_USE_PSNR;
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// intentionally changed the dimension for better testing coverage
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libvpx_test::I420VideoSource video("hantro_collage_w352h288.yuv", 352, 288,
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timebase.den, timebase.num, 0, 10);
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ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
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const double psnr_lossless = GetMinPsnr();
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EXPECT_GE(psnr_lossless, kMaxPsnr);
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}
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TEST_P(LosslessTest, TestLossLessEncoding444) {
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libvpx_test::Y4mVideoSource video("rush_hour_444.y4m", 0, 10);
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cfg_.g_profile = 1;
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cfg_.g_timebase = video.timebase();
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cfg_.rc_target_bitrate = 2000;
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cfg_.g_lag_in_frames = 25;
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cfg_.rc_min_quantizer = 0;
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cfg_.rc_max_quantizer = 0;
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init_flags_ = VPX_CODEC_USE_PSNR;
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ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
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const double psnr_lossless = GetMinPsnr();
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EXPECT_GE(psnr_lossless, kMaxPsnr);
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}
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TEST_P(LosslessTest, TestLossLessEncodingCtrl) {
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const vpx_rational timebase = { 33333333, 1000000000 };
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cfg_.g_timebase = timebase;
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cfg_.rc_target_bitrate = 2000;
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cfg_.g_lag_in_frames = 25;
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// Intentionally set Q > 0, to make sure control can be used to activate
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// lossless
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cfg_.rc_min_quantizer = 10;
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cfg_.rc_max_quantizer = 20;
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init_flags_ = VPX_CODEC_USE_PSNR;
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libvpx_test::I420VideoSource video("hantro_collage_w352h288.yuv", 352, 288,
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timebase.den, timebase.num, 0, 10);
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ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
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const double psnr_lossless = GetMinPsnr();
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EXPECT_GE(psnr_lossless, kMaxPsnr);
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}
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VP9_INSTANTIATE_TEST_CASE(LosslessTest,
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::testing::Values(::libvpx_test::kRealTime,
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::libvpx_test::kOnePassGood,
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::libvpx_test::kTwoPassGood));
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VP10_INSTANTIATE_TEST_CASE(LosslessTest,
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::testing::Values(::libvpx_test::kOnePassGood,
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::libvpx_test::kTwoPassGood));
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} // namespace
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