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- #include "VideoPlayer.h"
- #include "DecodeVedio.h"
- #include <QPainter>
- #include <QResizeEvent>
- #include <QEventLoop>
- #include "spdlog/spdlog.h"
- VideoPlayer::VideoPlayer(QWidget *parent) : QWidget(parent)
- {
-
- m_threadDecode = new QThread(this);
- m_decodeVedio = new DecodeVedio(m_threadDecode);
- m_semRefresh = new QSemaphore(30);
- m_semRefresh->release(30);
- m_timerRefreshUI.setSingleShot(false);
-
- m_timerRefreshUI.setTimerType(Qt::PreciseTimer);
- connect(&m_timerRefreshUI, &QTimer::timeout, this, &VideoPlayer::do_refreshUI);
- connect(m_decodeVedio, &DecodeVedio::signal_oneImage, this, &VideoPlayer::do_refreshOneUI);
- SPDLOG_TRACE("UI线程ID:{}", QThread::currentThreadId());
- }
- VideoPlayer::~VideoPlayer()
- {
- if(m_timerRefreshUI.isActive())
- {
- m_timerRefreshUI.stop();
- }
- delete m_decodeVedio;
- if(m_image)
- {
- delete m_image;
- }
- }
- void VideoPlayer::setPlayVedio(const QString& fileName)
- {
- m_fileName = fileName;
- isSetVedioFile = true;
- m_decodeVedio->initFFmpeg(m_fileName);
-
- m_srcWidth = m_decodeVedio->getVideoWidth();
- m_srcHeight = m_decodeVedio->getVideoHeight();
- m_frameCount = m_decodeVedio->getFrameCount();
- SPDLOG_DEBUG("视频宽:{} 高:{} 帧数:{}", m_srcWidth, m_srcHeight, m_frameCount);
-
- this->setMinimumSize(160,90);
-
- if(m_frameCount < 0)
- {
-
- if(m_frameCount == -2)
- {
- m_frameCount = 24;
- }
- else {
- m_frameCount = 25;
- }
- }
- else if(m_frameCount == 0)
- {
- m_frameCount = 25;
- }
- SPDLOG_INFO("帧率:{}", m_frameCount);
-
- m_decodeVedio->startDecodeVedio();
- m_semRefresh->release(1);
-
-
- }
- bool VideoPlayer::play()
- {
- if(!isSetVedioFile)
- {
- SPDLOG_ERROR("文件名为空");
- return false;
- }
- if(m_playStatus)
- {
- return false;
- }
-
-
- m_timerRefreshUI.setSingleShot(false);
- m_interval = 1000/m_frameCount;
- if(1000 % m_frameCount > 5)
- {
- m_frameCount += 1;
- }
- SPDLOG_TRACE("刷新UI的定时间隔:{}",m_interval);
- m_timerRefreshUI.start(m_interval);
- m_playStatus = true;
-
- return true;
- }
- void VideoPlayer::pause()
- {
- if(!m_playStatus)
- {
- return;
- }
- m_timerRefreshUI.stop();
- m_playStatus = false;
- }
- void VideoPlayer::stop()
- {
- SPDLOG_DEBUG("...停止播放...");
- m_fileName = QString();
- if(m_timerRefreshUI.isActive())
- {
- m_timerRefreshUI.stop();
- }
- SPDLOG_DEBUG("...停止解码...");
- m_decodeVedio->stopDecodeVedio();
-
- SPDLOG_DEBUG("绘制黑帧");
- m_image = new QImage(m_nowWidth, m_nowHeight, QImage::Format_RGB32);
- m_image->fill(Qt::black);
- update();
- m_playStatus = false;
- isSetVedioFile = false;
- }
- qint64 VideoPlayer::getDuration()
- {
- return m_decodeVedio->getDuration();
- }
- qint64 VideoPlayer::getCurrentPos()
- {
- return m_decodeVedio->getCurrentPos();
- }
- void VideoPlayer::setCurrentPos(quint64 pos)
- {
-
- bool temp = m_playStatus;
- if(m_playStatus)
- {
- m_timerRefreshUI.stop();
- m_playStatus = false;
- }
- m_decodeVedio->setCurrentPos(pos);
-
- if(temp)
- {
- m_timerRefreshUI.start(m_interval);
- m_playStatus = true;
- }else
- {
-
- m_semRefresh->release(3);
- }
- }
- void VideoPlayer::paintEvent(QPaintEvent *event)
- {
- if(m_image)
- {
-
- QPainter painter(this);
- painter.drawImage(0, 0, *m_image);
- }
- }
- void VideoPlayer::resizeEvent(QResizeEvent *event)
- {
- SPDLOG_TRACE("窗口大小改变...");
- m_nowWidth = event->size().width();
- m_nowHeight = event->size().height();
- QWidget::resizeEvent(event);
- }
- void VideoPlayer::refreshOneUIUntilHave()
- {
- if(m_decodeVedio != nullptr)
- {
-
-
- if(m_image != nullptr)
- {
- delete m_image;
- m_image = nullptr;
- }
-
- m_image = m_decodeVedio->getOneImageUntilHave();
-
- if(m_image)
- {
- if(m_srcWidth != m_nowWidth || m_srcHeight != m_nowHeight)
- {
- *m_image = m_image->scaled(m_nowWidth, m_nowHeight, Qt::KeepAspectRatio, Qt::SmoothTransformation);
- }
-
- update();
- }
- m_decodeVedio->wakeUpCondQueueNoEmpty();
- }
- }
- void VideoPlayer::do_refreshUI()
- {
- if(m_decodeVedio != nullptr)
- {
-
-
- if(m_image != nullptr)
- {
- delete m_image;
- m_image = nullptr;
- }
- m_image = m_decodeVedio->getOneImage();
-
- if(m_image)
- {
- if(m_srcWidth != m_nowWidth || m_srcHeight != m_nowHeight)
- {
- *m_image = m_image->scaled(m_nowWidth, m_nowHeight, Qt::KeepAspectRatio, Qt::SmoothTransformation);
- }
-
- update();
- }
- m_decodeVedio->wakeUpCondQueueNoEmpty();
- }
- }
- void VideoPlayer::do_refreshOneUI()
- {
- if(!m_semRefresh->tryAcquire(1))
- {
- return;
- }
-
- if(m_decodeVedio != nullptr)
- {
-
-
- if(m_image != nullptr)
- {
- delete m_image;
- m_image = nullptr;
- }
- m_image = m_decodeVedio->getOneImage();
-
- if(m_image)
- {
- if(m_srcWidth != m_nowWidth || m_srcHeight != m_nowHeight)
- {
- *m_image = m_image->scaled(m_nowWidth, m_nowHeight, Qt::KeepAspectRatio, Qt::SmoothTransformation);
- }
-
- update();
- }
- m_decodeVedio->wakeUpCondQueueNoEmpty();
- }
- }
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