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vp9: add rate control interface for RTC
Add vp9 RTC rate control without creating encoder, to allow external codecs to use vp9 rate control. A new library (libvp9rc.a) will be built. Applications using this interface must be linked with the library. BUG=1060775 Change-Id: Ib3e597256725a37d2d104e1e1a1733c469991b03
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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" | ||
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| #include <fstream> // NOLINT | ||
| #include <string> | ||
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| #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" | ||
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| namespace { | ||
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| const size_t kNumFrame = 850; | ||
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| 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; | ||
| }; | ||
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| // 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() {} | ||
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| virtual ~RcInterfaceTest() {} | ||
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| 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); | ||
| } | ||
| } | ||
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| 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); | ||
| } | ||
| } | ||
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| 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; | ||
| } | ||
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| 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; | ||
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| 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; | ||
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| rc_cfg_.ts_rate_decimator[0] = 4; | ||
| rc_cfg_.ts_rate_decimator[1] = 2; | ||
| rc_cfg_.ts_rate_decimator[2] = 1; | ||
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| 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; | ||
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| 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; | ||
| } | ||
| } | ||
| } | ||
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| std::unique_ptr<libvpx::VP9RateControlRTC> rc_api_; | ||
| libvpx::VP9RateControlRtcConfig rc_cfg_; | ||
| }; | ||
|
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| TEST_F(RcInterfaceTest, OneLayer) { RunOneLayer(); } | ||
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| TEST_F(RcInterfaceTest, SVC) { RunSVC(); } | ||
| } // namespace | ||
|
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| int main(int argc, char **argv) { | ||
| ::testing::InitGoogleTest(&argc, argv); | ||
| return RUN_ALL_TESTS(); | ||
| } |
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