cc017ca8df
This unit test compares the difference in quality with error resilience enabled and disabled. The test runs for all of the one-pass encoding modes. The test ensures that the effect of turning on error resilience makes less than a 10% difference in PSNR. Further cases should be added to do a more comprehensive test. Change-Id: I1fc747fc78c9459bc6c74494f4b38308dbed0c32
91 lines
2.5 KiB
C++
91 lines
2.5 KiB
C++
/*
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Copyright (c) 2012 The WebM project authors. All Rights Reserved.
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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 "test/encode_test_driver.h"
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#include "test/i420_video_source.h"
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namespace {
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class ErrorResilienceTest : public libvpx_test::EncoderTest,
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public ::testing::TestWithParam<int> {
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protected:
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ErrorResilienceTest() {
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psnr_ = 0.0;
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nframes_ = 0;
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encoding_mode_ = static_cast<libvpx_test::TestMode>(GetParam());
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}
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virtual ~ErrorResilienceTest() {}
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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 BeginPassHook(unsigned int /*pass*/) {
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psnr_ = 0.0;
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nframes_ = 0;
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}
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virtual bool Continue() const {
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return !HasFatalFailure() && !abort_;
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}
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virtual void PSNRPktHook(const vpx_codec_cx_pkt_t *pkt) {
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psnr_ += pkt->data.psnr.psnr[0];
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nframes_++;
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}
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double GetAveragePsnr() const {
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if (nframes_)
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return psnr_ / nframes_;
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return 0.0;
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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(ErrorResilienceTest, OnVersusOff) {
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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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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, 30);
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// Error resilient mode OFF.
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cfg_.g_error_resilient = 0;
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ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
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const double psnr_resilience_off = GetAveragePsnr();
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EXPECT_GT(psnr_resilience_off, 25.0);
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// Error resilient mode ON.
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cfg_.g_error_resilient = 1;
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ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
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const double psnr_resilience_on = GetAveragePsnr();
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EXPECT_GT(psnr_resilience_on, 25.0);
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// Test that turning on error resilient mode hurts by 10% at most.
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if (psnr_resilience_off > 0.0) {
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const double psnr_ratio = psnr_resilience_on / psnr_resilience_off;
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EXPECT_GE(psnr_ratio, 0.9);
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EXPECT_LE(psnr_ratio, 1.1);
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}
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}
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INSTANTIATE_TEST_CASE_P(OnOffTest, ErrorResilienceTest,
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ONE_PASS_TEST_MODES);
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} // namespace
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