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/index/api/stack/reset 在相同url和通分辨率多次调用channel析构没画面的问题 是在 VideoStackManager::parseParams 函数里 多次 (*params)[i * cols + j] = nullptr; 导致 channel 计数器为0，析构没画面。 同时修复cpu占用过高问题。
542 lines
18 KiB
C++
542 lines
18 KiB
C++
#if defined(ENABLE_VIDEOSTACK) && defined(ENABLE_X264) && defined(ENABLE_FFMPEG)
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#include "VideoStack.h"
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#include "Codec/Transcode.h"
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#include "Common/Device.h"
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#include "Util/logger.h"
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#include "Util/util.h"
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#include "json/value.h"
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#include <Thread/WorkThreadPool.h>
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#include <fstream>
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#include <libavutil/pixfmt.h>
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#include <memory>
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#include <mutex>
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// ITU-R BT.601
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// #define RGB_TO_Y(R, G, B) ((( 66 * (R) + 129 * (G) + 25 * (B)+128) >> 8)+16)
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// #define RGB_TO_U(R, G, B) (((-38 * (R) - 74 * (G) + 112 * (B)+128) >> 8)+128)
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// #define RGB_TO_V(R, G, B) (((112 * (R) - 94 * (G) - 18 * (B)+128) >> 8)+128)
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// ITU-R BT.709
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#define RGB_TO_Y(R, G, B) (((47 * (R) + 157 * (G) + 16 * (B) + 128) >> 8) + 16)
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#define RGB_TO_U(R, G, B) (((-26 * (R) - 87 * (G) + 112 * (B) + 128) >> 8) + 128)
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#define RGB_TO_V(R, G, B) (((112 * (R) - 102 * (G) - 10 * (B) + 128) >> 8) + 128)
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INSTANCE_IMP(VideoStackManager)
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Param::~Param() {
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auto strongChn= weak_chn.lock();
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if (!strongChn) { return; }
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VideoStackManager::Instance().unrefChannel(id, width, height, pixfmt);
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}
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Channel::Channel(const std::string& id, int width, int height, AVPixelFormat pixfmt)
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: _id(id), _width(width), _height(height), _pixfmt(pixfmt) {
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_tmp = std::make_shared<mediakit::FFmpegFrame>();
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_tmp->get()->width = _width;
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_tmp->get()->height = _height;
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_tmp->get()->format = _pixfmt;
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av_frame_get_buffer(_tmp->get(), 32);
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memset(_tmp->get()->data[0], 0, _tmp->get()->linesize[0] * _height);
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memset(_tmp->get()->data[1], 0, _tmp->get()->linesize[1] * _height / 2);
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memset(_tmp->get()->data[2], 0, _tmp->get()->linesize[2] * _height / 2);
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auto frame = VideoStackManager::Instance().getBgImg();
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_sws = std::make_shared<mediakit::FFmpegSws>(_pixfmt, _width, _height);
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_tmp = _sws->inputFrame(frame);
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}
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void Channel::addParam(const std::weak_ptr<Param>& p) {
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std::lock_guard<std::recursive_mutex> lock(_mx);
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_params.push_back(p);
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}
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void Channel::onFrame(const mediakit::FFmpegFrame::Ptr& frame) {
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std::weak_ptr<Channel> weakSelf = shared_from_this();
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_poller = _poller ? _poller : toolkit::WorkThreadPool::Instance().getPoller();
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_poller->async([weakSelf, frame]() {
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auto self = weakSelf.lock();
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if (!self) { return; }
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self->_tmp = self->_sws->inputFrame(frame);
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self->forEachParam([self](const Param::Ptr& p) { self->fillBuffer(p); });
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});
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}
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void Channel::forEachParam(const std::function<void(const Param::Ptr&)>& func) {
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for (auto& wp : _params) {
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if (auto sp = wp.lock()) { func(sp); }
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}
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}
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void Channel::fillBuffer(const Param::Ptr& p) {
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if (auto buf = p->weak_buf.lock()) { copyData(buf, p); }
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}
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void Channel::copyData(const mediakit::FFmpegFrame::Ptr& buf, const Param::Ptr& p) {
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switch (p->pixfmt) {
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case AV_PIX_FMT_YUV420P: {
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for (int i = 0; i < p->height; i++) {
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memcpy(buf->get()->data[0] + buf->get()->linesize[0] * (i + p->posY) + p->posX,
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_tmp->get()->data[0] + _tmp->get()->linesize[0] * i, _tmp->get()->width);
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}
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// 确保height为奇数时，也能正确的复制到最后一行uv数据 [AUTO-TRANSLATED:69895ea5]
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// Ensure that the uv data can be copied to the last line correctly when height is odd
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for (int i = 0; i < (p->height + 1) / 2; i++) {
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// U平面 [AUTO-TRANSLATED:8b73dc2d]
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// U plane
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memcpy(buf->get()->data[1] + buf->get()->linesize[1] * (i + p->posY / 2) +
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p->posX / 2,
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_tmp->get()->data[1] + _tmp->get()->linesize[1] * i, _tmp->get()->width / 2);
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// V平面 [AUTO-TRANSLATED:8fa72cc7]
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// V plane
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memcpy(buf->get()->data[2] + buf->get()->linesize[2] * (i + p->posY / 2) +
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p->posX / 2,
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_tmp->get()->data[2] + _tmp->get()->linesize[2] * i, _tmp->get()->width / 2);
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}
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break;
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}
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case AV_PIX_FMT_NV12: {
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// TODO: 待实现 [AUTO-TRANSLATED:247ec1df]
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// TODO: To be implemented
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break;
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}
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default: WarnL << "No support pixformat: " << av_get_pix_fmt_name(p->pixfmt); break;
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}
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}
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void StackPlayer::addChannel(const std::weak_ptr<Channel>& chn) {
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std::lock_guard<std::recursive_mutex> lock(_mx);
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_channels.push_back(chn);
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}
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void StackPlayer::play() {
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auto url = _url;
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// 创建拉流 解码对象 [AUTO-TRANSLATED:9267c5dc]
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// Create a pull stream decoding object
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_player = std::make_shared<mediakit::MediaPlayer>();
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std::weak_ptr<mediakit::MediaPlayer> weakPlayer = _player;
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std::weak_ptr<StackPlayer> weakSelf = shared_from_this();
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(*_player)[mediakit::Client::kWaitTrackReady] = false;
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(*_player)[mediakit::Client::kRtpType] = mediakit::Rtsp::RTP_TCP;
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_player->setOnPlayResult([weakPlayer, weakSelf, url](const toolkit::SockException& ex) mutable {
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TraceL << "StackPlayer: " << url << " OnPlayResult: " << ex.what();
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auto strongPlayer = weakPlayer.lock();
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if (!strongPlayer) { return; }
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auto self = weakSelf.lock();
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if (!self) { return; }
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if (!ex) {
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// 取消定时器 [AUTO-TRANSLATED:41ff7c9a]
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// Cancel the timer
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self->_timer.reset();
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self->_failedCount = 0;
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} else {
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self->onDisconnect();
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self->rePlay(url);
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}
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auto videoTrack = std::dynamic_pointer_cast<mediakit::VideoTrack>(
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strongPlayer->getTrack(mediakit::TrackVideo, false));
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// auto audioTrack = std::dynamic_pointer_cast<mediakit::AudioTrack>(strongPlayer->getTrack(mediakit::TrackAudio, false));
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if (videoTrack) {
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// TODO:添加使用显卡还是cpu解码的判断逻辑 [AUTO-TRANSLATED:44bef37a]
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// TODO: Add logic to determine whether to use GPU or CPU decoding
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auto decoder = std::make_shared<mediakit::FFmpegDecoder>(
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videoTrack, 0, std::vector<std::string>{"h264", "hevc"});
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decoder->setOnDecode([weakSelf](const mediakit::FFmpegFrame::Ptr& frame) mutable {
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auto self = weakSelf.lock();
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if (!self) { return; }
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self->onFrame(frame);
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});
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videoTrack->addDelegate([decoder](const mediakit::Frame::Ptr& frame) {
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return decoder->inputFrame(frame, false, true);
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});
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}
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});
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_player->setOnShutdown([weakPlayer, url, weakSelf](const toolkit::SockException& ex) {
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TraceL << "StackPlayer: " << url << " OnShutdown: " << ex.what();
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auto strongPlayer = weakPlayer.lock();
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if (!strongPlayer) { return; }
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auto self = weakSelf.lock();
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if (!self) { return; }
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self->onDisconnect();
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self->rePlay(url);
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});
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_player->play(url);
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}
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void StackPlayer::onFrame(const mediakit::FFmpegFrame::Ptr& frame) {
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std::lock_guard<std::recursive_mutex> lock(_mx);
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for (auto& weak_chn : _channels) {
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if (auto chn = weak_chn.lock()) { chn->onFrame(frame); }
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}
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}
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void StackPlayer::onDisconnect() {
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std::lock_guard<std::recursive_mutex> lock(_mx);
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for (auto& weak_chn : _channels) {
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if (auto chn = weak_chn.lock()) {
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auto frame = VideoStackManager::Instance().getBgImg();
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chn->onFrame(frame);
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}
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}
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}
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void StackPlayer::rePlay(const std::string& url) {
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_failedCount++;
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auto delay = MAX(2 * 1000, MIN(_failedCount * 3 * 1000, 60 * 1000));// 步进延迟 重试间隔
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std::weak_ptr<StackPlayer> weakSelf = shared_from_this();
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_timer = std::make_shared<toolkit::Timer>(delay / 1000.0f, [weakSelf, url]() {
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auto self = weakSelf.lock();
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if (!self) {}
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WarnL << "replay [" << self->_failedCount << "]:" << url;
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self->_player->play(url);
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return false;
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}, nullptr);
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}
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VideoStack::VideoStack(const std::string& id, int width, int height, AVPixelFormat pixfmt,
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float fps, int bitRate)
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: _id(id), _width(width), _height(height), _pixfmt(pixfmt), _fps(fps), _bitRate(bitRate) {
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_buffer = std::make_shared<mediakit::FFmpegFrame>();
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_buffer->get()->width = _width;
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_buffer->get()->height = _height;
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_buffer->get()->format = _pixfmt;
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av_frame_get_buffer(_buffer->get(), 32);
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_dev = std::make_shared<mediakit::DevChannel>(
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mediakit::MediaTuple{DEFAULT_VHOST, "live", _id, ""});
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mediakit::VideoInfo info;
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info.codecId = mediakit::CodecH264;
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info.iWidth = _width;
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info.iHeight = _height;
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info.iFrameRate = _fps;
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info.iBitRate = _bitRate;
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_dev->initVideo(info);
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// dev->initAudio(); //TODO:音频 [AUTO-TRANSLATED:adc5658b]
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// dev->initAudio(); //TODO: Audio
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_dev->addTrackCompleted();
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_isExit = false;
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}
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VideoStack::~VideoStack() {
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_isExit = true;
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if (_thread.joinable()) { _thread.join(); }
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}
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void VideoStack::setParam(const Params& params) {
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if (_params) {
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for (auto& p : (*_params)) {
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if (!p) continue;
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p->weak_buf.reset();
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}
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}
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initBgColor();
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for (auto& p : (*params)) {
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if (!p) continue;
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p->weak_buf = _buffer;
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if (auto chn = p->weak_chn.lock()) {
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chn->addParam(p);
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chn->fillBuffer(p);
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}
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}
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_params = params;
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}
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void VideoStack::start() {
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_thread = std::thread([&]() {
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uint64_t pts = 0;
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int frameInterval = 1000 / _fps;
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auto lastEncTP = std::chrono::steady_clock::now();
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while (!_isExit) {
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if (std::chrono::steady_clock::now() - lastEncTP >
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std::chrono::milliseconds(frameInterval)) {
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lastEncTP = std::chrono::steady_clock::now();
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_dev->inputYUV((char**)_buffer->get()->data, _buffer->get()->linesize, pts);
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pts += frameInterval;
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} else {
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std::this_thread::sleep_for(std::chrono::milliseconds(1));
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}
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}
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});
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}
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void VideoStack::initBgColor() {
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// 填充底色 [AUTO-TRANSLATED:ee9bbd46]
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// Fill the background color
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auto R = 20;
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auto G = 20;
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auto B = 20;
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double Y = RGB_TO_Y(R, G, B);
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double U = RGB_TO_U(R, G, B);
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double V = RGB_TO_V(R, G, B);
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memset(_buffer->get()->data[0], Y, _buffer->get()->linesize[0] * _height);
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memset(_buffer->get()->data[1], U, _buffer->get()->linesize[1] * _height / 2);
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memset(_buffer->get()->data[2], V, _buffer->get()->linesize[2] * _height / 2);
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}
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Channel::Ptr VideoStackManager::getChannel(const std::string& id, int width, int height,
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AVPixelFormat pixfmt) {
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std::lock_guard<std::recursive_mutex> lock(_mx);
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auto key = id + std::to_string(width) + std::to_string(height) + std::to_string(pixfmt);
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auto it = _channelMap.find(key);
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if (it != _channelMap.end()) { return it->second->acquire(); }
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return createChannel(id, width, height, pixfmt);
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}
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void VideoStackManager::unrefChannel(const std::string& id, int width, int height,
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AVPixelFormat pixfmt) {
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std::lock_guard<std::recursive_mutex> lock(_mx);
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auto key = id + std::to_string(width) + std::to_string(height) + std::to_string(pixfmt);
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auto chn_it = _channelMap.find(key);
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if (chn_it != _channelMap.end() && chn_it->second->dispose()) {
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_channelMap.erase(chn_it);
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auto player_it = _playerMap.find(id);
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if (player_it != _playerMap.end() && player_it->second->dispose()) {
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_playerMap.erase(player_it);
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}
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}
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}
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int VideoStackManager::startVideoStack(const Json::Value& json) {
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std::string id;
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int width, height;
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auto params = parseParams(json, id, width, height);
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if (!params) {
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ErrorL << "Videostack parse params failed!";
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return -1;
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}
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auto stack = std::make_shared<VideoStack>(id, width, height);
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for (auto& p : (*params)) {
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if (!p) continue;
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p->weak_chn = getChannel(p->id, p->width, p->height, p->pixfmt);
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}
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stack->setParam(params);
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stack->start();
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std::lock_guard<std::recursive_mutex> lock(_mx);
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_stackMap[id] = stack;
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return 0;
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}
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int VideoStackManager::resetVideoStack(const Json::Value& json) {
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std::string id;
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int width, height;
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auto params = parseParams(json, id, width, height);
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if (!params) {
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ErrorL << "Videostack parse params failed!";
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return -1;
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}
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VideoStack::Ptr stack;
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{
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std::lock_guard<std::recursive_mutex> lock(_mx);
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auto it = _stackMap.find(id);
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if (it == _stackMap.end()) { return -2; }
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stack = it->second;
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}
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for (auto& p : (*params)) {
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if (!p) continue;
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p->weak_chn = getChannel(p->id, p->width, p->height, p->pixfmt);
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}
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stack->setParam(params);
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return 0;
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}
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int VideoStackManager::stopVideoStack(const std::string& id) {
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std::lock_guard<std::recursive_mutex> lock(_mx);
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auto it = _stackMap.find(id);
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if (it != _stackMap.end()) {
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_stackMap.erase(it);
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InfoL << "VideoStack stop: " << id;
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return 0;
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}
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return -1;
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}
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mediakit::FFmpegFrame::Ptr VideoStackManager::getBgImg() { return _bgImg; }
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template<typename T> T getJsonValue(const Json::Value& json, const std::string& key) {
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if (!json.isMember(key)) {
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throw Json::LogicError("VideoStack parseParams missing required field: " + key);
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}
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return json[key].as<T>();
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}
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Params VideoStackManager::parseParams(const Json::Value& json, std::string& id, int& width,
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int& height) {
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id = getJsonValue<std::string>(json, "id");
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width = getJsonValue<int>(json, "width");
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height = getJsonValue<int>(json, "height");
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int rows = getJsonValue<int>(json, "row");// 行数
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int cols = getJsonValue<int>(json, "col");// 列数
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float gapv = json["gapv"].asFloat();// 垂直间距
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float gaph = json["gaph"].asFloat();// 水平间距
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// 单个间距 [AUTO-TRANSLATED:e1b9b5b6]
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// Single spacing
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int gaphPix = static_cast<int>(round(width * gaph));
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int gapvPix = static_cast<int>(round(height * gapv));
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// 根据间距计算格子宽高 [AUTO-TRANSLATED:b9972498]
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// Calculate the width and height of the grid according to the spacing
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int gridWidth = cols > 1 ? (width - gaphPix * (cols - 1)) / cols : width;
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int gridHeight = rows > 1 ? (height - gapvPix * (rows - 1)) / rows : height;
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auto params = std::make_shared<std::vector<Param::Ptr>>(rows * cols);
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for (int row = 0; row < rows; row++) {
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for (int col = 0; col < cols; col++) {
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std::string url = json["url"][row][col].asString();
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auto param = std::make_shared<Param>();
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param->posX = gridWidth * col + col * gaphPix;
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param->posY = gridHeight * row + row * gapvPix;
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param->width = gridWidth;
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param->height = gridHeight;
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param->id = url;
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(*params)[row * cols + col] = param;
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}
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}
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// 判断是否需要合并格子 （焦点屏） [AUTO-TRANSLATED:bfa14430]
|
||
// Determine whether to merge grids (focus screen)
|
||
if (json.isMember("span") && json["span"].isArray() && json["span"].size() > 0) {
|
||
for (const auto& subArray : json["span"]) {
|
||
if (!subArray.isArray() || subArray.size() != 2) {
|
||
throw Json::LogicError("Incorrect 'span' sub-array format in JSON");
|
||
}
|
||
std::array<int, 4> mergePos;
|
||
unsigned int index = 0;
|
||
|
||
for (const auto& innerArray : subArray) {
|
||
if (!innerArray.isArray() || innerArray.size() != 2) {
|
||
throw Json::LogicError("Incorrect 'span' inner-array format in JSON");
|
||
}
|
||
for (const auto& number : innerArray) {
|
||
if (index < mergePos.size()) { mergePos[index++] = number.asInt(); }
|
||
}
|
||
}
|
||
|
||
for (int i = mergePos[0]; i <= mergePos[2]; i++) {
|
||
for (int j = mergePos[1]; j <= mergePos[3]; j++) {
|
||
if (i == mergePos[0] && j == mergePos[1]) {
|
||
(*params)[i * cols + j]->width =
|
||
(mergePos[3] - mergePos[1] + 1) * gridWidth +
|
||
(mergePos[3] - mergePos[1]) * gapvPix;
|
||
(*params)[i * cols + j]->height =
|
||
(mergePos[2] - mergePos[0] + 1) * gridHeight +
|
||
(mergePos[2] - mergePos[0]) * gaphPix;
|
||
} else {
|
||
(*params)[i * cols + j] = nullptr;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
return params;
|
||
}
|
||
|
||
bool VideoStackManager::loadBgImg(const std::string& path) {
|
||
_bgImg = std::make_shared<mediakit::FFmpegFrame>();
|
||
|
||
_bgImg->get()->width = 1280;
|
||
_bgImg->get()->height = 720;
|
||
_bgImg->get()->format = AV_PIX_FMT_YUV420P;
|
||
|
||
av_frame_get_buffer(_bgImg->get(), 32);
|
||
|
||
std::ifstream file(path, std::ios::binary);
|
||
if (!file.is_open()) { return false; }
|
||
|
||
file.read((char*)_bgImg->get()->data[0],
|
||
_bgImg->get()->linesize[0] * _bgImg->get()->height);// Y
|
||
file.read((char*)_bgImg->get()->data[1],
|
||
_bgImg->get()->linesize[1] * _bgImg->get()->height / 2);// U
|
||
file.read((char*)_bgImg->get()->data[2],
|
||
_bgImg->get()->linesize[2] * _bgImg->get()->height / 2);// V
|
||
return true;
|
||
}
|
||
|
||
void VideoStackManager::clear() { _stackMap.clear(); }
|
||
|
||
Channel::Ptr VideoStackManager::createChannel(const std::string& id, int width, int height,
|
||
AVPixelFormat pixfmt) {
|
||
|
||
std::lock_guard<std::recursive_mutex> lock(_mx);
|
||
StackPlayer::Ptr player;
|
||
auto it = _playerMap.find(id);
|
||
if (it != _playerMap.end()) {
|
||
player = it->second->acquire();
|
||
} else {
|
||
player = createPlayer(id);
|
||
}
|
||
|
||
auto refChn = std::make_shared<RefWrapper<Channel::Ptr>>(
|
||
std::make_shared<Channel>(id, width, height, pixfmt));
|
||
auto chn = refChn->acquire();
|
||
player->addChannel(chn);
|
||
|
||
_channelMap[id + std::to_string(width) + std::to_string(height) + std::to_string(pixfmt)] =
|
||
refChn;
|
||
return chn;
|
||
}
|
||
|
||
StackPlayer::Ptr VideoStackManager::createPlayer(const std::string& id) {
|
||
std::lock_guard<std::recursive_mutex> lock(_mx);
|
||
auto refPlayer =
|
||
std::make_shared<RefWrapper<StackPlayer::Ptr>>(std::make_shared<StackPlayer>(id));
|
||
_playerMap[id] = refPlayer;
|
||
|
||
auto player = refPlayer->acquire();
|
||
if (!id.empty()) { player->play(); }
|
||
|
||
return player;
|
||
}
|
||
#endif
|