obs-StreamFX/source/ffmpeg/avframe-queue.cpp

132 lines
2.8 KiB
C++

// AUTOGENERATED COPYRIGHT HEADER START
// Copyright (C) 2020-2023 Michael Fabian 'Xaymar' Dirks <info@xaymar.com>
// Copyright (C) 2022 lainon <GermanAizek@yandex.ru>
// AUTOGENERATED COPYRIGHT HEADER END
#include "avframe-queue.hpp"
#include "tools.hpp"
using namespace streamfx::ffmpeg;
std::shared_ptr<AVFrame> avframe_queue::create_frame()
{
std::shared_ptr<AVFrame> frame = std::shared_ptr<AVFrame>(av_frame_alloc(), [](AVFrame* frame) {
av_frame_unref(frame);
av_frame_free(&frame);
});
frame->width = this->_resolution.first;
frame->height = this->_resolution.second;
frame->format = this->_format;
int res = av_frame_get_buffer(frame.get(), 32);
if (res < 0) {
throw std::runtime_error(tools::get_error_description(res));
}
return frame;
}
avframe_queue::avframe_queue() = default;
avframe_queue::~avframe_queue()
{
clear();
}
void avframe_queue::set_resolution(int32_t const width, int32_t const height)
{
this->_resolution.first = width;
this->_resolution.second = height;
}
void avframe_queue::get_resolution(int32_t& width, int32_t& height)
{
width = this->_resolution.first;
height = this->_resolution.second;
}
int32_t avframe_queue::get_width()
{
return this->_resolution.first;
}
int32_t avframe_queue::get_height()
{
return this->_resolution.second;
}
void avframe_queue::set_pixel_format(AVPixelFormat const format)
{
this->_format = format;
}
AVPixelFormat avframe_queue::get_pixel_format()
{
return this->_format;
}
void avframe_queue::precache(std::size_t count)
{
for (std::size_t n = 0; n < count; n++) {
push(create_frame());
}
}
void avframe_queue::clear()
{
std::unique_lock<std::mutex> ulock(this->_lock);
_frames.clear();
}
void avframe_queue::push(std::shared_ptr<AVFrame> const frame)
{
std::unique_lock<std::mutex> ulock(this->_lock);
_frames.push_back(frame);
}
std::shared_ptr<AVFrame> avframe_queue::pop()
{
std::unique_lock<std::mutex> ulock(this->_lock);
std::shared_ptr<AVFrame> ret;
while (ret == nullptr) {
if (_frames.size() == 0) {
ret = create_frame();
} else {
ret = _frames.front();
if (ret == nullptr) {
ret = create_frame();
} else {
_frames.pop_front();
if ((static_cast<int32_t>(ret->width) != this->_resolution.first) || (static_cast<int32_t>(ret->height) != this->_resolution.second) || (ret->format != this->_format)) {
ret = nullptr;
}
}
}
}
return ret;
}
std::shared_ptr<AVFrame> avframe_queue::pop_only()
{
std::unique_lock<std::mutex> ulock(this->_lock);
if (_frames.size() == 0) {
return nullptr;
}
std::shared_ptr<AVFrame> ret = _frames.front();
if (ret == nullptr) {
return nullptr;
}
_frames.pop_front();
return ret;
}
bool avframe_queue::empty()
{
return _frames.empty();
}
std::size_t avframe_queue::size()
{
return _frames.size();
}