Michael Fabian 'Xaymar' Dirks
142 lines
3.4 KiB
C++
142 lines
3.4 KiB
C++
// FFMPEG Video Encoder Integration for OBS Studio
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// Copyright (C) 2018 - 2018 Michael Fabian Dirks
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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#include "avframe-queue.hpp"
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#include "tools.hpp"
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std::shared_ptr<AVFrame> ffmpeg::avframe_queue::create_frame()
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{
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std::shared_ptr<AVFrame> frame =
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std::shared_ptr<AVFrame>(av_frame_alloc(), [](AVFrame* frame) { av_frame_free(&frame); });
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frame->width = this->resolution.first;
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frame->height = this->resolution.second;
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frame->format = this->format;
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int res = av_frame_get_buffer(frame.get(), 32);
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if (res < 0) {
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throw std::exception(ffmpeg::tools::get_error_description(res));
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}
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return frame;
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}
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ffmpeg::avframe_queue::avframe_queue() {}
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ffmpeg::avframe_queue::~avframe_queue()
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{
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clear();
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}
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void ffmpeg::avframe_queue::set_resolution(uint32_t width, uint32_t height)
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{
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this->resolution.first = width;
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this->resolution.second = height;
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}
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void ffmpeg::avframe_queue::get_resolution(uint32_t& width, uint32_t& height)
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{
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width = this->resolution.first;
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height = this->resolution.second;
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}
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uint32_t ffmpeg::avframe_queue::get_width()
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{
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return this->resolution.first;
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}
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uint32_t ffmpeg::avframe_queue::get_height()
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{
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return this->resolution.second;
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}
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void ffmpeg::avframe_queue::set_pixel_format(AVPixelFormat format)
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{
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this->format = format;
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}
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AVPixelFormat ffmpeg::avframe_queue::get_pixel_format()
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{
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return this->format;
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}
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void ffmpeg::avframe_queue::precache(size_t count)
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{
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for (size_t n = 0; n < count; n++) {
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push(create_frame());
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}
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}
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void ffmpeg::avframe_queue::clear()
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{
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std::unique_lock<std::mutex> ulock(this->lock);
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frames.clear();
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}
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void ffmpeg::avframe_queue::push(std::shared_ptr<AVFrame> frame)
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{
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std::unique_lock<std::mutex> ulock(this->lock);
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frames.push_back(frame);
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}
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std::shared_ptr<AVFrame> ffmpeg::avframe_queue::pop()
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{
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std::unique_lock<std::mutex> ulock(this->lock);
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std::shared_ptr<AVFrame> ret;
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while (ret == nullptr) {
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if (frames.size() == 0) {
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ret = create_frame();
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} else {
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ret = frames.front();
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if (ret == nullptr) {
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ret = create_frame();
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} else {
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frames.pop_front();
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if ((static_cast<uint32_t>(ret->width) != this->resolution.first)
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|| (static_cast<uint32_t>(ret->height) != this->resolution.second)
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|| (ret->format != this->format)) {
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ret = nullptr;
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}
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}
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}
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}
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return ret;
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}
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std::shared_ptr<AVFrame> ffmpeg::avframe_queue::pop_only()
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{
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std::unique_lock<std::mutex> ulock(this->lock);
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if (frames.size() == 0) {
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return nullptr;
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}
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std::shared_ptr<AVFrame> ret = frames.front();
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if (ret == nullptr) {
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return nullptr;
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}
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frames.pop_front();
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return ret;
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}
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bool ffmpeg::avframe_queue::empty()
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{
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return frames.empty();
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}
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size_t ffmpeg::avframe_queue::size()
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{
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return frames.size();
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}
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