228 lines
8 KiB
C++
228 lines
8 KiB
C++
/*
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* Copyright (c) 2016, Alliance for Open Media. All rights reserved.
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*
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* This source code is subject to the terms of the BSD 2 Clause License and
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* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
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* was not distributed with this source code in the LICENSE file, you can
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* obtain it at www.aomedia.org/license/software. If the Alliance for Open
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* Media Patent License 1.0 was not distributed with this source code in the
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* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
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*/
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#include <climits>
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#include <vector>
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#include "gtest/gtest.h"
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#include "config/aom_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/video_source.h"
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#include "test/util.h"
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namespace {
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const unsigned int kCqLevel = 18;
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const double kMaxPsnr = 100.0;
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// kPsnrThreshold represents the psnr threshold used to validate the quality of
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// the first frame. The indices correspond to one/two-pass, allintra and
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// realtime encoding modes.
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const double kPsnrThreshold[3] = { 29.0, 41.5, 41.5 };
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// kPsnrFluctuation represents the maximum allowed psnr fluctuation w.r.t first
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// frame. The indices correspond to one/two-pass, allintra and realtime
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// encoding modes.
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const double kPsnrFluctuation[3] = { 2.5, 0.3, 17.0 };
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class MonochromeTest
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: public ::libaom_test::CodecTestWith3Params<libaom_test::TestMode, int,
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int>,
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public ::libaom_test::EncoderTest {
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protected:
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MonochromeTest()
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: EncoderTest(GET_PARAM(0)), lossless_(GET_PARAM(2)),
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frame0_psnr_y_(0.0) {}
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~MonochromeTest() override = default;
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void SetUp() override { InitializeConfig(GET_PARAM(1)); }
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void PreEncodeFrameHook(::libaom_test::VideoSource *video,
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::libaom_test::Encoder *encoder) override {
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if (video->frame() == 0) {
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encoder->Control(AOME_SET_CPUUSED, GET_PARAM(3));
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if (mode_ == ::libaom_test::kAllIntra) {
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encoder->Control(AOME_SET_CQ_LEVEL, kCqLevel);
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} else if (mode_ == ::libaom_test::kRealTime) {
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encoder->Control(AOME_SET_MAX_INTRA_BITRATE_PCT, 10000);
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}
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if (lossless_) {
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encoder->Control(AV1E_SET_LOSSLESS, 1);
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}
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}
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}
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void DecompressedFrameHook(const aom_image_t &img,
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aom_codec_pts_t pts) override {
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(void)pts;
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// Get value of top-left corner pixel of U plane
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int chroma_value = img.planes[AOM_PLANE_U][0];
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bool is_chroma_constant =
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ComparePlaneToValue(img, AOM_PLANE_U, chroma_value) &&
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ComparePlaneToValue(img, AOM_PLANE_V, chroma_value);
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// Chroma planes should be constant
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EXPECT_TRUE(is_chroma_constant);
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// Monochrome flag on image should be set
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EXPECT_EQ(img.monochrome, 1);
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chroma_value_list_.push_back(chroma_value);
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}
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// Returns true if all pixels on the plane are equal to value, and returns
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// false otherwise.
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bool ComparePlaneToValue(const aom_image_t &img, const int plane,
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const int value) {
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const int w = aom_img_plane_width(&img, plane);
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const int h = aom_img_plane_height(&img, plane);
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const uint8_t *const buf = img.planes[plane];
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const int stride = img.stride[plane];
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for (int r = 0; r < h; ++r) {
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for (int c = 0; c < w; ++c) {
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if (buf[r * stride + c] != value) return false;
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}
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}
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return true;
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}
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void PSNRPktHook(const aom_codec_cx_pkt_t *pkt) override {
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// Check average PSNR value is >= 100 db in case of lossless encoding.
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if (lossless_) {
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EXPECT_GE(pkt->data.psnr.psnr[0], kMaxPsnr);
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return;
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}
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const int psnr_index = (mode_ == ::libaom_test::kRealTime) ? 2
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: (mode_ == ::libaom_test::kAllIntra) ? 1
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: 0;
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// Check that the initial Y PSNR value is 'high enough', and check that
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// subsequent Y PSNR values are 'close' to this initial value.
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if (frame0_psnr_y_ == 0.0) {
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frame0_psnr_y_ = pkt->data.psnr.psnr[1];
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EXPECT_GT(frame0_psnr_y_, kPsnrThreshold[psnr_index]);
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}
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EXPECT_NEAR(pkt->data.psnr.psnr[1], frame0_psnr_y_,
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kPsnrFluctuation[psnr_index]);
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}
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int lossless_;
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std::vector<int> chroma_value_list_;
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double frame0_psnr_y_;
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};
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#if !CONFIG_REALTIME_ONLY
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TEST_P(MonochromeTest, TestMonochromeEncoding) {
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::libaom_test::I420VideoSource video("hantro_collage_w352h288.yuv", 352, 288,
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30, 1, 0, 5);
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init_flags_ = AOM_CODEC_USE_PSNR;
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cfg_.rc_buf_initial_sz = 500;
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cfg_.rc_buf_optimal_sz = 600;
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cfg_.rc_buf_sz = 1000;
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cfg_.rc_min_quantizer = 2;
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cfg_.rc_max_quantizer = 56;
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cfg_.rc_undershoot_pct = 50;
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cfg_.rc_overshoot_pct = 50;
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cfg_.rc_end_usage = AOM_CBR;
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cfg_.g_lag_in_frames = 1;
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cfg_.kf_min_dist = cfg_.kf_max_dist = 3000;
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// Enable dropped frames.
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cfg_.rc_dropframe_thresh = 1;
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// Run at low bitrate.
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cfg_.rc_target_bitrate = 40;
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// Set monochrome encoding flag
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cfg_.monochrome = 1;
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ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
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// Check that the chroma planes are equal across all frames
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std::vector<int>::const_iterator iter = chroma_value_list_.begin();
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int initial_chroma_value = *iter;
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for (; iter != chroma_value_list_.end(); ++iter) {
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// Check that all decoded frames have the same constant chroma planes.
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EXPECT_EQ(*iter, initial_chroma_value);
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}
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}
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class MonochromeAllIntraTest : public MonochromeTest {};
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TEST_P(MonochromeAllIntraTest, TestMonochromeEncoding) {
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::libaom_test::I420VideoSource video("hantro_collage_w352h288.yuv", 352, 288,
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30, 1, 0, 5);
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init_flags_ = AOM_CODEC_USE_PSNR;
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// Set monochrome encoding flag
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cfg_.monochrome = 1;
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ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
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// Check that the chroma planes are equal across all frames
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std::vector<int>::const_iterator iter = chroma_value_list_.begin();
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int initial_chroma_value = *iter;
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for (; iter != chroma_value_list_.end(); ++iter) {
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// Check that all decoded frames have the same constant chroma planes.
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EXPECT_EQ(*iter, initial_chroma_value);
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}
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}
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#endif // !CONFIG_REALTIME_ONLY
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class MonochromeRealtimeTest : public MonochromeTest {};
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TEST_P(MonochromeRealtimeTest, TestMonochromeEncoding) {
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::libaom_test::I420VideoSource video("hantro_collage_w352h288.yuv", 352, 288,
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30, 1, 0, 30);
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init_flags_ = AOM_CODEC_USE_PSNR;
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// Set monochrome encoding flag
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cfg_.monochrome = 1;
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// Run at low bitrate.
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cfg_.rc_target_bitrate = 40;
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cfg_.rc_buf_sz = 6000;
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cfg_.rc_buf_initial_sz = 4000;
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cfg_.rc_buf_optimal_sz = 5000;
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ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
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#if CONFIG_AV1_DECODER
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// Check that the chroma planes are equal across all frames
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std::vector<int>::const_iterator iter = chroma_value_list_.begin();
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int initial_chroma_value = *iter;
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for (; iter != chroma_value_list_.end(); ++iter) {
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// Check that all decoded frames have the same constant chroma planes.
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EXPECT_EQ(*iter, initial_chroma_value);
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}
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#endif
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}
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#if !CONFIG_REALTIME_ONLY
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AV1_INSTANTIATE_TEST_SUITE(MonochromeTest,
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::testing::Values(::libaom_test::kOnePassGood,
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::libaom_test::kTwoPassGood),
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::testing::Values(0), // lossless
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::testing::Values(0)); // cpu_used
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AV1_INSTANTIATE_TEST_SUITE(MonochromeAllIntraTest,
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::testing::Values(::libaom_test::kAllIntra),
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::testing::Values(0, 1), // lossless
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::testing::Values(6, 9)); // cpu_used
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#endif // !CONFIG_REALTIME_ONLY
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AV1_INSTANTIATE_TEST_SUITE(MonochromeRealtimeTest,
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::testing::Values(::libaom_test::kRealTime),
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::testing::Values(0), // lossless
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::testing::Values(6, 8, 10)); // cpu_used
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} // namespace
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