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authortrav90 <travawine@palemoon.org>2018-10-15 21:45:30 -0500
committertrav90 <travawine@palemoon.org>2018-10-15 21:45:30 -0500
commit68569dee1416593955c1570d638b3d9250b33012 (patch)
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Import aom library
This is the reference implementation for the Alliance for Open Media's av1 video code. The commit used was 4d668d7feb1f8abd809d1bca0418570a7f142a36.
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diff --git a/third_party/aom/test/datarate_test.cc b/third_party/aom/test/datarate_test.cc
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+/*
+ * Copyright (c) 2016, Alliance for Open Media. All rights reserved
+ *
+ * This source code is subject to the terms of the BSD 2 Clause License and
+ * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+ * was not distributed with this source code in the LICENSE file, you can
+ * obtain it at www.aomedia.org/license/software. If the Alliance for Open
+ * Media Patent License 1.0 was not distributed with this source code in the
+ * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+*/
+
+#include "./aom_config.h"
+#include "third_party/googletest/src/googletest/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"
+#include "test/y4m_video_source.h"
+#include "aom/aom_codec.h"
+
+namespace {
+
+class DatarateTestLarge
+ : public ::libaom_test::EncoderTest,
+ public ::libaom_test::CodecTestWith2Params<libaom_test::TestMode, int> {
+ public:
+ DatarateTestLarge() : EncoderTest(GET_PARAM(0)) {}
+
+ protected:
+ virtual ~DatarateTestLarge() {}
+
+ virtual void SetUp() {
+ InitializeConfig();
+ SetMode(GET_PARAM(1));
+ set_cpu_used_ = GET_PARAM(2);
+ ResetModel();
+ }
+
+ virtual void ResetModel() {
+ last_pts_ = 0;
+ bits_in_buffer_model_ = cfg_.rc_target_bitrate * cfg_.rc_buf_initial_sz;
+ frame_number_ = 0;
+ tot_frame_number_ = 0;
+ first_drop_ = 0;
+ num_drops_ = 0;
+ // Denoiser is off by default.
+ denoiser_on_ = 0;
+ bits_total_ = 0;
+ denoiser_offon_test_ = 0;
+ denoiser_offon_period_ = -1;
+ }
+
+ virtual void PreEncodeFrameHook(::libaom_test::VideoSource *video,
+ ::libaom_test::Encoder *encoder) {
+ if (video->frame() == 0) encoder->Control(AOME_SET_CPUUSED, set_cpu_used_);
+
+ if (denoiser_offon_test_) {
+ ASSERT_GT(denoiser_offon_period_, 0)
+ << "denoiser_offon_period_ is not positive.";
+ if ((video->frame() + 1) % denoiser_offon_period_ == 0) {
+ // Flip denoiser_on_ periodically
+ denoiser_on_ ^= 1;
+ }
+ }
+
+ encoder->Control(AV1E_SET_NOISE_SENSITIVITY, denoiser_on_);
+
+ const aom_rational_t tb = video->timebase();
+ timebase_ = static_cast<double>(tb.num) / tb.den;
+ duration_ = 0;
+ }
+
+ virtual void FramePktHook(const aom_codec_cx_pkt_t *pkt) {
+ // Time since last timestamp = duration.
+ aom_codec_pts_t duration = pkt->data.frame.pts - last_pts_;
+
+ if (duration > 1) {
+ // If first drop not set and we have a drop set it to this time.
+ if (!first_drop_) first_drop_ = last_pts_ + 1;
+ // Update the number of frame drops.
+ num_drops_ += static_cast<int>(duration - 1);
+ // Update counter for total number of frames (#frames input to encoder).
+ // Needed for setting the proper layer_id below.
+ tot_frame_number_ += static_cast<int>(duration - 1);
+ }
+
+ // Add to the buffer the bits we'd expect from a constant bitrate server.
+ bits_in_buffer_model_ += static_cast<int64_t>(
+ duration * timebase_ * cfg_.rc_target_bitrate * 1000);
+
+ // Buffer should not go negative.
+ ASSERT_GE(bits_in_buffer_model_, 0) << "Buffer Underrun at frame "
+ << pkt->data.frame.pts;
+
+ const size_t frame_size_in_bits = pkt->data.frame.sz * 8;
+
+ // Update the total encoded bits.
+ bits_total_ += frame_size_in_bits;
+
+ // Update the most recent pts.
+ last_pts_ = pkt->data.frame.pts;
+ ++frame_number_;
+ ++tot_frame_number_;
+ }
+
+ virtual void EndPassHook(void) {
+ duration_ = (last_pts_ + 1) * timebase_;
+ // Effective file datarate:
+ effective_datarate_ = (bits_total_ / 1000.0) / duration_;
+ }
+
+ aom_codec_pts_t last_pts_;
+ double timebase_;
+ int frame_number_; // Counter for number of non-dropped/encoded frames.
+ int tot_frame_number_; // Counter for total number of input frames.
+ int64_t bits_total_;
+ double duration_;
+ double effective_datarate_;
+ int set_cpu_used_;
+ int64_t bits_in_buffer_model_;
+ aom_codec_pts_t first_drop_;
+ int num_drops_;
+ int denoiser_on_;
+ int denoiser_offon_test_;
+ int denoiser_offon_period_;
+};
+
+// Check basic rate targeting for VBR mode.
+TEST_P(DatarateTestLarge, BasicRateTargetingVBR) {
+ cfg_.rc_min_quantizer = 0;
+ cfg_.rc_max_quantizer = 63;
+ cfg_.g_error_resilient = 0;
+ cfg_.rc_end_usage = AOM_VBR;
+ cfg_.g_lag_in_frames = 0;
+
+ ::libaom_test::I420VideoSource video("hantro_collage_w352h288.yuv", 352, 288,
+ 30, 1, 0, 140);
+ for (int i = 400; i <= 800; i += 400) {
+ cfg_.rc_target_bitrate = i;
+ ResetModel();
+ ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
+ ASSERT_GE(effective_datarate_, cfg_.rc_target_bitrate * 0.75)
+ << " The datarate for the file is lower than target by too much!";
+ ASSERT_LE(effective_datarate_, cfg_.rc_target_bitrate * 1.25)
+ << " The datarate for the file is greater than target by too much!";
+ }
+}
+
+// Check basic rate targeting for CBR,
+TEST_P(DatarateTestLarge, BasicRateTargeting) {
+ cfg_.rc_buf_initial_sz = 500;
+ cfg_.rc_buf_optimal_sz = 500;
+ cfg_.rc_buf_sz = 1000;
+ cfg_.rc_dropframe_thresh = 1;
+ cfg_.rc_min_quantizer = 0;
+ cfg_.rc_max_quantizer = 63;
+ cfg_.rc_end_usage = AOM_CBR;
+ cfg_.g_lag_in_frames = 0;
+
+ ::libaom_test::I420VideoSource video("hantro_collage_w352h288.yuv", 352, 288,
+ 30, 1, 0, 140);
+ for (int i = 150; i < 800; i += 400) {
+ cfg_.rc_target_bitrate = i;
+ ResetModel();
+ ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
+ ASSERT_GE(effective_datarate_, cfg_.rc_target_bitrate * 0.85)
+ << " The datarate for the file is lower than target by too much!";
+ ASSERT_LE(effective_datarate_, cfg_.rc_target_bitrate * 1.15)
+ << " The datarate for the file is greater than target by too much!";
+ }
+}
+
+// Check basic rate targeting for CBR.
+TEST_P(DatarateTestLarge, BasicRateTargeting444) {
+ ::libaom_test::Y4mVideoSource video("rush_hour_444.y4m", 0, 140);
+
+ cfg_.g_profile = 1;
+ cfg_.g_timebase = video.timebase();
+
+ cfg_.rc_buf_initial_sz = 500;
+ cfg_.rc_buf_optimal_sz = 500;
+ cfg_.rc_buf_sz = 1000;
+ cfg_.rc_dropframe_thresh = 1;
+ cfg_.rc_min_quantizer = 0;
+ cfg_.rc_max_quantizer = 63;
+ cfg_.rc_end_usage = AOM_CBR;
+
+ for (int i = 250; i < 900; i += 400) {
+ cfg_.rc_target_bitrate = i;
+ ResetModel();
+ ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
+ ASSERT_GE(static_cast<double>(cfg_.rc_target_bitrate),
+ effective_datarate_ * 0.85)
+ << " The datarate for the file exceeds the target by too much!";
+ ASSERT_LE(static_cast<double>(cfg_.rc_target_bitrate),
+ effective_datarate_ * 1.15)
+ << " The datarate for the file missed the target!"
+ << cfg_.rc_target_bitrate << " " << effective_datarate_;
+ }
+}
+
+// Check that (1) the first dropped frame gets earlier and earlier
+// as the drop frame threshold is increased, and (2) that the total number of
+// frame drops does not decrease as we increase frame drop threshold.
+// Use a lower qp-max to force some frame drops.
+TEST_P(DatarateTestLarge, ChangingDropFrameThresh) {
+ cfg_.rc_buf_initial_sz = 500;
+ cfg_.rc_buf_optimal_sz = 500;
+ cfg_.rc_buf_sz = 1000;
+ cfg_.rc_undershoot_pct = 20;
+ cfg_.rc_undershoot_pct = 20;
+ cfg_.rc_dropframe_thresh = 10;
+ cfg_.rc_min_quantizer = 0;
+ cfg_.rc_max_quantizer = 50;
+ cfg_.rc_end_usage = AOM_CBR;
+ cfg_.rc_target_bitrate = 200;
+ cfg_.g_lag_in_frames = 0;
+ // TODO(marpan): Investigate datarate target failures with a smaller keyframe
+ // interval (128).
+ cfg_.kf_max_dist = 9999;
+
+ ::libaom_test::I420VideoSource video("hantro_collage_w352h288.yuv", 352, 288,
+ 30, 1, 0, 100);
+
+ const int kDropFrameThreshTestStep = 30;
+ aom_codec_pts_t last_drop = 140;
+ int last_num_drops = 0;
+ for (int i = 40; i < 100; i += kDropFrameThreshTestStep) {
+ cfg_.rc_dropframe_thresh = i;
+ ResetModel();
+ ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
+ ASSERT_GE(effective_datarate_, cfg_.rc_target_bitrate * 0.85)
+ << " The datarate for the file is lower than target by too much!";
+ ASSERT_LE(effective_datarate_, cfg_.rc_target_bitrate * 1.15)
+ << " The datarate for the file is greater than target by too much!";
+ ASSERT_LE(first_drop_, last_drop)
+ << " The first dropped frame for drop_thresh " << i
+ << " > first dropped frame for drop_thresh "
+ << i - kDropFrameThreshTestStep;
+ ASSERT_GE(num_drops_, last_num_drops * 0.85)
+ << " The number of dropped frames for drop_thresh " << i
+ << " < number of dropped frames for drop_thresh "
+ << i - kDropFrameThreshTestStep;
+ last_drop = first_drop_;
+ last_num_drops = num_drops_;
+ }
+}
+
+AV1_INSTANTIATE_TEST_CASE(DatarateTestLarge,
+ ::testing::Values(::libaom_test::kOnePassGood,
+ ::libaom_test::kRealTime),
+ ::testing::Range(2, 9, 2));
+} // namespace