video-pc/AvPlayer2/PlayWidget.cpp

#include "PlayWidget.h"
#include <QDebug>
#include <QTimer>

#include "playercontroller.h"

#include "AvRecorder/ui/opengl_video_widget.h"
#include "audio_effect_gl.h"

PlayWidget::PlayWidget(QWidget* parent)
    : QWidget(parent)
{
    setupUi();
    setupConnections();

    setPlayerController(new PlayerController);
}

void PlayWidget::setupUi()
{
    m_videoWidget = std::make_unique<OpenGLVideoWidget>(this);
    m_sliderProgress = new QSlider(Qt::Horizontal, this);
    m_labelTime = new QLabel("00:00/00:00", this);
    m_btnPlayPause = new QPushButton("播放", this);
    m_comboSpeed = new QComboBox(this);
    m_comboSpeed->addItems({"0.5x", "1.0x", "1.5x", "2.0x"});
    m_sliderVolume = new QSlider(Qt::Horizontal, this);
    m_sliderVolume->setRange(0, 100);
    m_labelVolume = new QLabel("音量", this);
    QHBoxLayout* controlLayout = new QHBoxLayout;
    controlLayout->addWidget(m_btnPlayPause);
    controlLayout->addWidget(new QLabel("倍速:"));
    controlLayout->addWidget(m_comboSpeed);
    controlLayout->addWidget(m_labelVolume);
    controlLayout->addWidget(m_sliderVolume);
    m_audioEffect = std::make_unique<AudioEffectGL>(this);
    QVBoxLayout* mainLayout = new QVBoxLayout(this);
    mainLayout->addWidget(m_videoWidget.get(), 5);
    QHBoxLayout* progressLayout = new QHBoxLayout;
    progressLayout->addWidget(m_sliderProgress, 8);
    progressLayout->addWidget(m_labelTime, 2);
    mainLayout->addLayout(progressLayout);
    mainLayout->addLayout(controlLayout);
    mainLayout->addWidget(m_audioEffect.get(), 2);
    setLayout(mainLayout);
}

void PlayWidget::setupConnections()
{
    connect(m_btnPlayPause, &QPushButton::clicked, this, &PlayWidget::onPlayPauseClicked);
    // connect(m_sliderProgress, &QSlider::sliderReleased, this, [this]() {
    //     if (!m_playerController) return;
    //     int value = m_sliderProgress->value();
    //     int max = m_sliderProgress->maximum();
    //     if (max > 0) {
    //         double seek_time = value * m_totalTime / max;
    //         m_playerController->videoSeek(seek_time);
    //     }
    // });
    connect(m_comboSpeed, QOverload<int>::of(&QComboBox::currentIndexChanged), this, &PlayWidget::onSpeedChanged);
    connect(m_sliderVolume, &QSlider::valueChanged, this, &PlayWidget::onVolumeChanged);
}

void PlayWidget::setPlayerController(PlayerController* controller)
{
    m_playerController = controller;
    if (!m_playerController) return;
    // 视频帧信号
    connect(m_playerController, &PlayerController::frameReady, this, [this](AVFrame* frame) {
        if (m_videoWidget) m_videoWidget->Render(frame);
    });
    // 音频可视化信号
    connect(m_playerController, &PlayerController::audioData, this, [this](const AudioData& data) {
        if (m_audioEffect) m_audioEffect->paint_data(data);
    });
    // 进度/时间信号
    // connect(m_playerController, &PlayerController::updatePlayTime, this, [this]() {
    //     if (!m_playerController) return;
    //     auto state = m_playerController->state();
    //     if (!state) return;
    //     double cur = state->audio_clock;
    //     double total = 0;
    //     if (state->ic) total = state->ic->duration / 1000000.0;
    //     m_totalTime = total;
    //     int max = 1000;
    //     m_sliderProgress->setMaximum(max);
    //     m_sliderProgress->setValue(total > 0 ? int(cur * max / total) : 0);
    //     QTime curT(0,0); curT = curT.addSecs(int(cur));
    //     QTime totT(0,0); totT = totT.addSecs(int(total));
    //     m_labelTime->setText(curT.toString("mm:ss") + "/" + totT.toString("mm:ss"));
    // });
    // 音量信号
    connect(m_playerController, &PlayerController::updatePlayControlVolume, this, [this]() {
        if (!m_playerController) return;
        float vol = m_playerController->deviceVolume();
        m_sliderVolume->setValue(int(vol * 100));
    });
    // 播放/暂停状态信号
    connect(m_playerController, &PlayerController::updatePlayControlStatus, this, [this]() {
        if (!m_playerController) return;
        auto state = m_playerController->state();
        if (state && state->paused)
            m_btnPlayPause->setText("播放");
        else
            m_btnPlayPause->setText("暂停");
    });

    controller->startToPlay("C:/Users/zhuizhu/Videos/1.mp4");
}

void PlayWidget::onPlayPauseClicked()
{
    if (m_playerController) m_playerController->pausePlay();
}

void PlayWidget::onProgressChanged(int value)
{
    // 进度条拖动时可选预览实现
}

void PlayWidget::onSpeedChanged(int index)
{
    if (!m_playerController) return;
    double speed = 1.0;
    switch(index) {
        case 0: speed = 0.5; break;
        case 1: speed = 1.0; break;
        case 2: speed = 1.5; break;
        case 3: speed = 2.0; break;
        default: speed = 1.0; break;
    }
    m_playerController->setPlaySpeed(speed);
}

void PlayWidget::onVolumeChanged(int value)
{
    if (!m_playerController) return;
    m_playerController->setDeviceVolume(value / 100.0f);
}