obs-StreamFX/source/filters/filter-autoframing.hpp

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/*
* Modern effects for a modern Streamer
* Copyright (C) 2020 Michael Fabian Dirks
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#pragma once
#include "gfx/gfx-debug.hpp"
#include "obs/gs/gs-rendertarget.hpp"
#include "obs/gs/gs-texture.hpp"
#include "obs/gs/gs-vertexbuffer.hpp"
#include "obs/obs-source-factory.hpp"
#include "plugin.hpp"
#include "util/util-threadpool.hpp"
#include "util/utility.hpp"
#include "warning-disable.hpp"
#include <atomic>
#include <list>
#include <memory>
#include <mutex>
#include "warning-enable.hpp"
#ifdef ENABLE_FILTER_AUTOFRAMING_NVIDIA
#include "nvidia/ar/nvidia-ar-facedetection.hpp"
#endif
namespace streamfx::filter::autoframing {
enum class tracking_mode : int64_t {
SOLO = 0,
GROUP = 1,
};
enum class tracking_provider : int64_t {
INVALID = -1,
AUTOMATIC = 0,
NVIDIA_FACEDETECTION = 1,
};
const char* cstring(tracking_provider provider);
std::string string(tracking_provider provider);
class autoframing_instance : public obs::source_instance {
struct track_el {
float age;
vec2 pos;
vec2 size;
vec2 vel;
};
struct pred_el {
// Motion-Predicted Position
vec2 mp_pos;
// Filtered Position
streamfx::util::math::kalman1D<float> filter_pos_x;
streamfx::util::math::kalman1D<float> filter_pos_y;
// Offset Filtered Position
vec2 offset_pos;
// Padded Area
vec2 pad_size;
// Aspect-Ratio-Corrected Padded Area
vec2 aspected_size;
};
bool _dirty;
std::pair<uint32_t, uint32_t> _size;
std::pair<uint32_t, uint32_t> _out_size;
std::shared_ptr<::streamfx::gfx::debug> _gfx_debug;
std::shared_ptr<::streamfx::obs::gs::effect> _standard_effect;
std::shared_ptr<::streamfx::obs::gs::rendertarget> _input;
std::shared_ptr<::streamfx::obs::gs::vertex_buffer> _vb;
tracking_provider _provider;
tracking_provider _provider_ui;
std::atomic<bool> _provider_ready;
std::mutex _provider_lock;
std::shared_ptr<util::threadpool::task> _provider_task;
#ifdef ENABLE_FILTER_AUTOFRAMING_NVIDIA
std::shared_ptr<::streamfx::nvidia::ar::facedetection> _nvidia_fx;
#endif
tracking_mode _track_mode;
float _track_frequency;
float _motion_smoothing;
float _motion_smoothing_kalman_pnc;
float _motion_smoothing_kalman_mnc;
float _motion_prediction;
float _frame_stability;
float _frame_stability_kalman;
bool _frame_padding_prc[2];
vec2 _frame_padding;
bool _frame_offset_prc[2];
vec2 _frame_offset;
float _frame_aspect_ratio;
float _track_frequency_counter;
std::list<std::shared_ptr<track_el>> _tracked_elements;
std::map<std::shared_ptr<track_el>, std::shared_ptr<pred_el>> _predicted_elements;
streamfx::util::math::kalman1D<float> _frame_pos_x;
streamfx::util::math::kalman1D<float> _frame_pos_y;
vec2 _frame_pos;
streamfx::util::math::kalman1D<float> _frame_size_x;
streamfx::util::math::kalman1D<float> _frame_size_y;
vec2 _frame_size;
bool _debug;
public:
~autoframing_instance();
autoframing_instance(obs_data_t* settings, obs_source_t* self);
void load(obs_data_t* data) override;
void migrate(obs_data_t* data, uint64_t version) override;
void update(obs_data_t* data) override;
void properties(obs_properties_t* properties);
uint32_t get_width() override;
uint32_t get_height() override;
virtual void video_tick(float_t seconds) override;
virtual void video_render(gs_effect_t* effect) override;
private:
void tracking_tick(float seconds);
void switch_provider(tracking_provider provider);
void task_switch_provider(util::threadpool_data_t data);
#ifdef ENABLE_FILTER_AUTOFRAMING_NVIDIA
void nvar_facedetection_load();
void nvar_facedetection_unload();
void nvar_facedetection_process();
void nvar_facedetection_properties(obs_properties_t* props);
void nvar_facedetection_update(obs_data_t* data);
#endif
};
class autoframing_factory : public obs::source_factory<streamfx::filter::autoframing::autoframing_factory,
streamfx::filter::autoframing::autoframing_instance> {
#ifdef ENABLE_FILTER_AUTOFRAMING_NVIDIA
bool _nvidia_available;
std::shared_ptr<::streamfx::nvidia::cuda::obs> _nvcuda;
std::shared_ptr<::streamfx::nvidia::cv::cv> _nvcvi;
std::shared_ptr<::streamfx::nvidia::ar::ar> _nvar;
#endif
public:
autoframing_factory();
~autoframing_factory() override;
const char* get_name() override;
void get_defaults2(obs_data_t* data) override;
obs_properties_t* get_properties2(autoframing_instance* data) override;
#ifdef ENABLE_FRONTEND
static bool on_manual_open(obs_properties_t* props, obs_property_t* property, void* data);
#endif
bool is_provider_available(tracking_provider);
tracking_provider find_ideal_provider();
public: // Singleton
static void initialize();
static void finalize();
static std::shared_ptr<autoframing_factory> get();
};
} // namespace streamfx::filter::autoframing