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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
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