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/*
* Copyright (c) 2020 The WebM project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "vp9/ratectrl_rtc.h"
#include <fstream> // NOLINT
#include <string>
#include "./vpx_config.h"
#include "third_party/googletest/src/include/gtest/gtest.h"
#include "test/codec_factory.h"
#include "test/encode_test_driver.h"
#include "test/util.h"
#include "test/video_source.h"
#include "vpx/vpx_codec.h"
#include "vpx_ports/bitops.h"
namespace {
const size_t kNumFrame = 850;
struct FrameInfo {
friend std::istream &operator>>(std::istream &is, FrameInfo &info) {
is >> info.frame_id >> info.spatial_id >> info.temporal_id >> info.base_q >>
info.target_bandwidth >> info.buffer_level >> info.filter_level_ >>
info.bytes_used;
return is;
}
int frame_id;
int spatial_id;
int temporal_id;
// Base QP
int base_q;
size_t target_bandwidth;
size_t buffer_level;
// Loopfilter level
int filter_level_;
// Frame size for current frame, used for pose encode update
size_t bytes_used;
};
// This test runs the rate control interface and compare against ground truth
// generated by encoders.
// Settings for the encoder:
// For 1 layer:
//
// examples/vpx_temporal_svc_encoder gipsrec_motion1.1280_720.yuv out vp9
// 1280 720 1 30 7 0 0 1 0 1000
//
// For SVC (3 temporal layers, 3 spatial layers):
//
// examples/vp9_spatial_svc_encoder -f 10000 -w 1280 -h 720 -t 1/30 -sl 3
// -k 10000 -bl 100,140,200,250,350,500,450,630,900 -b 1600 --rc-end-usage=1
// --lag-in-frames=0 --passes=1 --speed=7 --threads=1
// --temporal-layering-mode=3 -aq 1 -rcstat 1
// gipsrec_motion1.1280_720.yuv -o out.webm
//
// - AQ_Mode 0
// - Disable golden refresh
// - Bitrate x 2 at frame/superframe 200
// - Bitrate / 4 at frame/superframe 400
//
// The generated file includes:
// frame number, spatial layer ID, temporal layer ID, base QP, target
// bandwidth, buffer level, loopfilter level, encoded frame size
// TODO(jianj): Remove golden files, and run actual encoding in this test.
class RcInterfaceTest : public ::testing::Test {
public:
explicit RcInterfaceTest() {}
virtual ~RcInterfaceTest() {}
protected:
void RunOneLayer() {
SetConfigOneLayer();
rc_api_->Create(rc_cfg_);
FrameInfo frame_info;
libvpx::VP9FrameParamsQpRTC frame_params;
frame_params.frame_type = KEY_FRAME;
frame_params.spatial_layer_id = 0;
frame_params.temporal_layer_id = 0;
std::ifstream one_layer_file;
one_layer_file.open(libvpx_test::GetDataPath() +
"/rc_interface_test_one_layer");
ASSERT_EQ(one_layer_file.rdstate() & std::ifstream::failbit, 0);
for (size_t i = 0; i < kNumFrame; i++) {
one_layer_file >> frame_info;
if (frame_info.frame_id > 0) frame_params.frame_type = INTER_FRAME;
if (frame_info.frame_id == 200) {
rc_cfg_.target_bandwidth = rc_cfg_.target_bandwidth * 2;
rc_api_->UpdateRateControl(rc_cfg_);
} else if (frame_info.frame_id == 400) {
rc_cfg_.target_bandwidth = rc_cfg_.target_bandwidth / 4;
rc_api_->UpdateRateControl(rc_cfg_);
}
ASSERT_EQ(frame_info.spatial_id, 0);
ASSERT_EQ(frame_info.temporal_id, 0);
rc_api_->ComputeQP(frame_params);
ASSERT_EQ(rc_api_->GetQP(), frame_info.base_q);
ASSERT_EQ(rc_api_->GetLoopfilterLevel(), frame_info.filter_level_);
rc_api_->PostEncodeUpdate(frame_info.bytes_used);
}
}
void RunSVC() {
SetConfigSVC();
rc_api_->Create(rc_cfg_);
FrameInfo frame_info;
libvpx::VP9FrameParamsQpRTC frame_params;
frame_params.frame_type = KEY_FRAME;
std::ifstream svc_file;
svc_file.open(std::string(std::getenv("LIBVPX_TEST_DATA_PATH")) +
"/rc_interface_test_svc");
ASSERT_EQ(svc_file.rdstate() & std::ifstream::failbit, 0);
for (size_t i = 0; i < kNumFrame * rc_cfg_.ss_number_layers; i++) {
svc_file >> frame_info;
if (frame_info.frame_id > 0) frame_params.frame_type = INTER_FRAME;
if (frame_info.frame_id == 200 * rc_cfg_.ss_number_layers) {
for (int layer = 0;
layer < rc_cfg_.ss_number_layers * rc_cfg_.ts_number_layers;
layer++)
rc_cfg_.layer_target_bitrate[layer] *= 2;
rc_cfg_.target_bandwidth *= 2;
rc_api_->UpdateRateControl(rc_cfg_);
} else if (frame_info.frame_id == 400 * rc_cfg_.ss_number_layers) {
for (int layer = 0;
layer < rc_cfg_.ss_number_layers * rc_cfg_.ts_number_layers;
layer++)
rc_cfg_.layer_target_bitrate[layer] /= 4;
rc_cfg_.target_bandwidth /= 4;
rc_api_->UpdateRateControl(rc_cfg_);
}
frame_params.spatial_layer_id = frame_info.spatial_id;
frame_params.temporal_layer_id = frame_info.temporal_id;
rc_api_->ComputeQP(frame_params);
ASSERT_EQ(rc_api_->GetQP(), frame_info.base_q);
ASSERT_EQ(rc_api_->GetLoopfilterLevel(), frame_info.filter_level_);
rc_api_->PostEncodeUpdate(frame_info.bytes_used);
}
}
private:
void SetConfigOneLayer() {
rc_cfg_.width = 1280;
rc_cfg_.height = 720;
rc_cfg_.max_quantizer = 52;
rc_cfg_.min_quantizer = 2;
rc_cfg_.target_bandwidth = 1000;
rc_cfg_.buf_initial_sz = 600;
rc_cfg_.buf_optimal_sz = 600;
rc_cfg_.buf_sz = 1000;
rc_cfg_.undershoot_pct = 50;
rc_cfg_.overshoot_pct = 50;
rc_cfg_.max_intra_bitrate_pct = 1000;
rc_cfg_.framerate = 30.0;
rc_cfg_.ss_number_layers = 1;
rc_cfg_.ts_number_layers = 1;
rc_cfg_.scaling_factor_num[0] = 1;
rc_cfg_.scaling_factor_den[0] = 1;
rc_cfg_.layer_target_bitrate[0] = 1000;
rc_cfg_.max_quantizers[0] = 52;
rc_cfg_.min_quantizers[0] = 2;
}
void SetConfigSVC() {
rc_cfg_.width = 1280;
rc_cfg_.height = 720;
rc_cfg_.max_quantizer = 56;
rc_cfg_.min_quantizer = 2;
rc_cfg_.target_bandwidth = 1600;
rc_cfg_.buf_initial_sz = 500;
rc_cfg_.buf_optimal_sz = 600;
rc_cfg_.buf_sz = 1000;
rc_cfg_.undershoot_pct = 50;
rc_cfg_.overshoot_pct = 50;
rc_cfg_.max_intra_bitrate_pct = 900;
rc_cfg_.framerate = 30.0;
rc_cfg_.ss_number_layers = 3;
rc_cfg_.ts_number_layers = 3;
rc_cfg_.scaling_factor_num[0] = 1;
rc_cfg_.scaling_factor_den[0] = 4;
rc_cfg_.scaling_factor_num[1] = 2;
rc_cfg_.scaling_factor_den[1] = 4;
rc_cfg_.scaling_factor_num[2] = 4;
rc_cfg_.scaling_factor_den[2] = 4;
rc_cfg_.ts_rate_decimator[0] = 4;
rc_cfg_.ts_rate_decimator[1] = 2;
rc_cfg_.ts_rate_decimator[2] = 1;
rc_cfg_.layer_target_bitrate[0] = 100;
rc_cfg_.layer_target_bitrate[1] = 140;
rc_cfg_.layer_target_bitrate[2] = 200;
rc_cfg_.layer_target_bitrate[3] = 250;
rc_cfg_.layer_target_bitrate[4] = 350;
rc_cfg_.layer_target_bitrate[5] = 500;
rc_cfg_.layer_target_bitrate[6] = 450;
rc_cfg_.layer_target_bitrate[7] = 630;
rc_cfg_.layer_target_bitrate[8] = 900;
for (int sl = 0; sl < rc_cfg_.ss_number_layers; ++sl) {
for (int tl = 0; tl < rc_cfg_.ts_number_layers; ++tl) {
const int i = sl * rc_cfg_.ts_number_layers + tl;
rc_cfg_.max_quantizers[i] = 56;
rc_cfg_.min_quantizers[i] = 2;
}
}
}
std::unique_ptr<libvpx::VP9RateControlRTC> rc_api_;
libvpx::VP9RateControlRtcConfig rc_cfg_;
};
TEST_F(RcInterfaceTest, OneLayer) { RunOneLayer(); }
TEST_F(RcInterfaceTest, SVC) { RunSVC(); }
} // namespace
int main(int argc, char **argv) {
::testing::InitGoogleTest(&argc, argv);
return RUN_ALL_TESTS();
}
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