C++ mlt::Filter类代码示例

Frei0rColoradjWidget::Frei0rColoradjWidget(Mlt::Filter filter, bool setDefaults, QWidget *parent) :
    QWidget(parent),
    ui(new Ui::Frei0rColoradjWidget),
    m_filter(filter)
{
    ui->setupUi(this);
    ui->keepLumaCheckBox->hide();
    m_defaultAction = 0.5;
    m_defaultLuma = false;
    m_defaultRGB = QColor::fromRgbF(0.5, 0.5, 0.5);
    if (setDefaults) {
        ui->modeComboBox->setCurrentIndex(2 * m_defaultAction);
        ui->keepLumaCheckBox->setChecked(m_defaultLuma);
        ui->wheel->setColor(m_defaultRGB);
        m_filter.set(kParamAction, m_defaultAction);
        m_filter.set(kParamKeepLuma, m_defaultLuma? 1 : 0);
        m_filter.set(kParamRed, m_defaultRGB.redF());
        m_filter.set(kParamGreen, m_defaultRGB.greenF());
        m_filter.set(kParamBlue, m_defaultRGB.blueF());
        ui->preset->saveDefaultPreset(m_filter);
    } else {
        ui->modeComboBox->setCurrentIndex(2 * filter.get_double(kParamAction));
        ui->keepLumaCheckBox->setChecked(filter.get_int(kParamKeepLuma));
        ui->wheel->setColor(QColor::fromRgbF(filter.get_double(kParamRed),
                                             filter.get_double(kParamGreen),
                                             filter.get_double(kParamBlue)));
    }
    ui->preset->loadPresets();
    m_filter.set(kParamLumaFormula,
                 (MLT.profile().colorspace() == 709? kLumaFormula709 : kLumaFormula601));
}

void AttachedFiltersModel::add(QmlMetadata* meta)
{
    if (!meta->allowMultiple()) {
        for (int i = 0; i < m_metaList.count(); i++) {
            const QmlMetadata* attachedMeta = m_metaList[i];
            if (attachedMeta && meta->uniqueId() == attachedMeta->uniqueId()) {
                emit duplicateAddFailed(i);
                return;
            }
        }
    }

    int insertIndex = -1;
    int mltIndex = -1;
    Mlt::Filter* filter = new Mlt::Filter(MLT.profile(), meta->mlt_service().toUtf8().constData());
    if (filter->is_valid()) {
        if (!meta->objectName().isEmpty())
            filter->set(kShotcutFilterProperty, meta->objectName().toUtf8().constData());

        // Put the filter after the last filter that is greater than or equal
        // in sort order.
        insertIndex = 0;
        for (int i = m_metaList.count() - 1; i >= 0; i--) {
            if (!sortIsLess(m_metaList[i], meta)) {
                insertIndex = i + 1;
                break;
            }
        }

        // Calculate the MLT index for the new filter.
        if (m_mltIndexMap.count() == 0) {
            mltIndex = m_producer->filter_count();
        } else if (insertIndex == 0) {
            mltIndex = m_mltIndexMap[0];
        } else {
            mltIndex = m_mltIndexMap[insertIndex -1] + 1;
        }

        beginInsertRows(QModelIndex(), insertIndex, insertIndex);
        if (MLT.isSeekable())
            MLT.pause();
        m_event->block();
        m_producer->attach(*filter);
        m_producer->move_filter(m_producer->filter_count() - 1, mltIndex);
        m_event->unblock();
        // Adjust MLT index map for indices that just changed.
        for (int i = 0; i < m_mltIndexMap.count(); i++) {
            if (m_mltIndexMap[i] >= mltIndex) {
                m_mltIndexMap[i] = m_mltIndexMap[i] + 1;
            }
        }
        m_mltIndexMap.insert(insertIndex, mltIndex);
        m_metaList.insert(insertIndex, meta);
        endInsertRows();
        emit changed();
    }
    else qWarning() << "Failed to load filter" << meta->mlt_service();
    delete filter;
}

bool EffectManager::enableEffects(const QList <int> &effectIndexes, bool disable, bool rememberState)
{
    int ct = 0;
    bool success = false;
    Mlt::Filter *filter = m_producer.filter(ct);
    while (filter) {
        if (effectIndexes.isEmpty() || effectIndexes.contains(filter->get_int("kdenlive_ix"))) {
            //m_producer.lock();
            if (rememberState) {
                if (disable && filter->get_int("disable") == 0) {
                    filter->set("auto_disable", 1);
                    filter->set("disable", (int) disable);
                } else if (!disable && filter->get_int("auto_disable") == 1) {
                    filter->set("disable", (char*) NULL);
                    filter->set("auto_disable", (char*) NULL);
                }
            } else {
                filter->set("disable", (int) disable);
            }
            success = true;
            //m_producer.unlock();
        }
        delete filter;
        ct++;
        filter = m_producer.filter(ct);
    }
    return success;
}

void AttachedFiltersModel::remove(int row)
{
    Mlt::Filter* filter = filterForRow(row);
    if (filter && filter->is_valid()) {
        beginRemoveRows(QModelIndex(), row, row);
        MLT.pause();
        m_producer->detach(*filter);
        m_rows--;
        endRemoveRows();
        emit changed();
    }
    delete filter;
}

bool AttachedFiltersModel::setData(const QModelIndex& index, const QVariant& , int role)
{
    if (role == Qt::CheckStateRole) {
        Mlt::Filter* filter = getFilter(index.row());
        if (filter && filter->is_valid()) {
            filter->set("disable", !filter->get_int("disable"));
            emit changed();
            emit dataChanged(createIndex(index.row(), 0), createIndex(index.row(), 0));
        }
        delete filter;
        return true;
    }
    return false;
}

void AttachedFiltersModel::calculateRows()
{
    m_rows =-0;
    if (MLT.isPlaylist()) return;
    if (m_producer && m_producer->is_valid()) {
        int n = m_producer->filter_count();
        while (n--) {
            Mlt::Filter* filter = m_producer->filter(n);
            if (filter && filter->is_valid() && !filter->get_int("_loader"))
                m_rows++;
            delete filter;
        }
    }
}

bool AttachedFiltersModel::setData(const QModelIndex& index, const QVariant& value, int role)
{
    if (role == Qt::CheckStateRole) {
        Mlt::Filter* filter = filterForRow(index.row());
        if (filter && filter->is_valid()) {
            double speed = MLT.producer()->get_speed();
            MLT.pause();
            filter->set("disable", !filter->get_int("disable"));
            MLT.play(speed);
            emit changed();
            emit dataChanged(createIndex(index.row(), 0), createIndex(index.row(), 0));
        }
        delete filter;
        return true;
    }
    return false;
}

Mlt::Filter *AttachedFiltersModel::add(const QString& mlt_service, const QString& shotcutName)
{
    Mlt::Filter* filter = new Mlt::Filter(MLT.profile(), mlt_service.toUtf8().constData());
    if (filter->is_valid()) {
        if (!shotcutName.isEmpty())
            filter->set("shotcut:filter", shotcutName.toUtf8().constData());
        int count = rowCount();
        beginInsertRows(QModelIndex(), count, count);
        MLT.pause();
        m_producer->attach(*filter);
        m_rows++;
        endInsertRows();
        emit changed();
    }
    else qWarning() << "Failed to load filter" << mlt_service;
    return filter;
}

void BinController::duplicateFilters(Mlt::Producer original, Mlt::Producer clone)
{
    Mlt::Service clipService(original.get_service());
    Mlt::Service dupService(clone.get_service());
    //delete original;
    //delete clone;
    int ct = 0;
    Mlt::Filter *filter = clipService.filter(ct);
    while (filter) {
        // Only duplicate Kdenlive filters, and skip the fade in effects
        //fprintf(stderr, "CHKNG FILTER: %s\n", filter->get("kdenlive_id"));
        if (filter->is_valid()/* && strcmp(filter->get("kdenlive_id"), "") && strcmp(filter->get("kdenlive_id"), "fadein") && strcmp(filter->get("kdenlive_id"), "fade_from_black")*/) {
            // looks like there is no easy way to duplicate a filter,
            // so we will create a new one and duplicate its properties
            Mlt::Filter *dup = new Mlt::Filter(*original.profile(), filter->get("mlt_service"));
            if (dup && dup->is_valid()) {
                Mlt::Properties entries(filter->get_properties());
                for (int i = 0; i < entries.count(); ++i) {
                    dup->set(entries.get_name(i), entries.get(i));
                }
                dupService.attach(*dup);
            }
        }
        ct++;
        filter = clipService.filter(ct);
    }
}

QVariant AttachedFiltersModel::data(const QModelIndex &index, int role) const
{
    if ( !m_producer || !m_producer->is_valid()
        || index.row() >= m_producer->filter_count())
        return QVariant();
    switch (role ) {
    case Qt::DisplayRole: {
            QVariant result;
            Mlt::Filter* filter = filterForRow(index.row());
            if (filter && filter->is_valid()) {
                // Relabel by QML UI
                QmlMetadata* meta = MAIN.filtersDock()->qmlMetadataForService(filter);
                if (meta)
                    result = meta->name();
                // Fallback is raw mlt_service name
                else if (filter->get("mlt_service"))
                    result = QString::fromUtf8(filter->get("mlt_service"));
            }
            // Relabel for widgets UIs
            if (result == "movit.blur" || result == "boxblur")
                result = tr("Blur");
            else if (result == "movit.lift_gamma_gain" || result == "frei0r.coloradj_RGB")
                result = tr("Color Grading");
            else if (result == "crop")
                result = tr("Crop");
            else if (result == "movit.glow" || result == "frei0r.glow")
                result = tr("Glow");
            else if (result == "movit.mirror" || result == "mirror")
                result = tr("Mirror");
            else if (result == "webvfx")
                result = tr("Overlay HTML");
            else if (result == "movit.sharpen" || result == "frei0r.sharpness")
                result = tr("Sharpen");
            else if (result == "movit.white_balance" || result == "frei0r.colgate")
                result = tr("White Balance");
            else if (result == "sox" && filter->get("use_peak"))
                result = tr("Normalize");
            delete filter;
            return result;
        }
    case Qt::CheckStateRole: {
            Mlt::Filter* filter = filterForRow(index.row());
            QVariant result = Qt::Unchecked;
            if (filter && filter->is_valid() && !filter->get_int("disable"))
                result = Qt::Checked;
            delete filter;
            return result;
        }
        break;
    default:
        break;
    }
    return QVariant();
}

void AttachedFiltersModel::reset(Mlt::Producer* producer)
{
    beginResetModel();
    m_event.reset();
    if (producer && producer->is_valid())
        m_producer.reset(new Mlt::Producer(producer));
    else if (MLT.isClip())
        m_producer.reset(new Mlt::Producer(MLT.producer()));
    else
        m_producer.reset();
    m_metaList.clear();
    m_mltIndexMap.clear();

    if (m_producer && m_producer->is_valid()) {
        Mlt::Event* event = m_producer->listen("service-changed", this, (mlt_listener)AttachedFiltersModel::producerChanged);
        m_event.reset(event);
        int count = m_producer->filter_count();
        for (int i = 0; i < count; i++) {
            Mlt::Filter* filter = m_producer->filter(i);
            if (filter && filter->is_valid() && !filter->get_int("_loader")) {
                QmlMetadata* newMeta = MAIN.filterController()->metadataForService(filter);
                int newIndex = m_metaList.count();
                for (int j = newIndex - 1; j >= 0; j--) {
                    const QmlMetadata* prevMeta = m_metaList[j];
                    if (sortIsLess(prevMeta, newMeta)) {
                        newIndex = j;
                    } else {
                        break;
                    }
                }
                m_metaList.insert(newIndex, newMeta);
                m_mltIndexMap.insert(newIndex, i);
            }
            delete filter;
        }
    }

    endResetModel();
    emit trackTitleChanged();
    emit isProducerSelectedChanged();
    emit readyChanged();
}

int AttachedFiltersModel::indexForRow(int row) const
{
    int result = -1;
    if (m_producer && m_producer->is_valid()) {
        int count = m_producer->filter_count();
        int j = 0;
        for (int i = 0; i < count; i++) {
            Mlt::Filter* filter = m_producer->filter(i);
            if (filter && filter->is_valid() && !filter->get_int("_loader")) {
                if (j == row) {
                    result = i;
                    break;
                }
                j++;
            }
            delete filter;
        }
    }
    return result;
}

MovitColorFilter::MovitColorFilter(Mlt::Filter filter, bool setDefaults, QWidget *parent) :
    QWidget(parent),
    ui(new Ui::MovitColorFilter),
    m_filter(filter)
{
    ui->setupUi(this);
    Mlt::Filter f(MLT.profile(), "movit.lift_gamma_gain");
    m_liftDefault = QColor::fromRgbF(f.get_double("lift_r"),
                                     f.get_double("lift_g"),
                                     f.get_double("lift_b"));
    m_gammaDefault = QColor::fromRgbF(f.get_double("gamma_r") / GAMMA_FACTOR,
                                      f.get_double("gamma_g") / GAMMA_FACTOR,
                                      f.get_double("gamma_b") / GAMMA_FACTOR);
    m_gainDefault = QColor::fromRgbF(f.get_double("gain_r") / GAIN_FACTOR,
                                     f.get_double("gain_g") / GAIN_FACTOR,
                                     f.get_double("gain_b") / GAIN_FACTOR);
    if (setDefaults) {
        ui->liftWheel->setColor(m_liftDefault);
        ui->gammaWheel->setColor(m_gammaDefault);
        ui->gainWheel->setColor(m_gainDefault);
        ui->preset->saveDefaultPreset(m_filter);
    } else {
        ui->liftWheel->setColor(QColor::fromRgbF(filter.get_double("lift_r"),
                                                 filter.get_double("lift_g"),
                                                 filter.get_double("lift_b")));
        ui->gammaWheel->setColor(QColor::fromRgbF(filter.get_double("gamma_r") / GAMMA_FACTOR,
                                                  filter.get_double("gamma_g") / GAMMA_FACTOR,
                                                  filter.get_double("gamma_b") / GAMMA_FACTOR));
        ui->gainWheel->setColor(QColor::fromRgbF(filter.get_double("gain_r") / GAIN_FACTOR,
                                                 filter.get_double("gain_g") / GAIN_FACTOR,
                                                 filter.get_double("gain_b") / GAIN_FACTOR));
    }
    ui->preset->loadPresets();
}

bool EffectManager::removeEffect(int effectIndex, bool updateIndex)
{
    m_producer.lock();
    int ct = 0;
    bool success = false;
    Mlt::Filter *filter = m_producer.filter(ct);
    QList <Mlt::Filter *> filters;
    while (filter) {
        filters << filter;
        if ((effectIndex == -1 && strcmp(filter->get("kdenlive_id"), "")) || filter->get_int("kdenlive_ix") == effectIndex) {
            if (m_producer.detach(*filter) == 0) {
                success = true;
            }
        } else if (updateIndex) {
            // Adjust the other effects index
            if (filter->get_int("kdenlive_ix") > effectIndex) filter->set("kdenlive_ix", filter->get_int("kdenlive_ix") - 1);
            ct++;
        } else ct++;
        filter = m_producer.filter(ct);
    }
    m_producer.unlock();
    qDeleteAll(filters);
    return success;
}

QVariant AttachedFiltersModel::data(const QModelIndex &index, int role) const
{
    if ( !m_producer || !m_producer->is_valid()
        || index.row() >= m_producer->filter_count())
        return QVariant();
    switch (role ) {
    case Qt::DisplayRole: {
            QVariant result;
            const QmlMetadata* meta = m_metaList[index.row()];
            if (meta) {
                result = meta->name();
            } else {
                // Fallback is raw mlt_service name
                Mlt::Filter* filter = getFilter(index.row());
                if (filter && filter->is_valid() && filter->get("mlt_service")) {
                    result = QString::fromUtf8(filter->get("mlt_service"));
                }
                delete filter;
            }
            return result;
        }
    case Qt::CheckStateRole: {
            Mlt::Filter* filter = getFilter(index.row());
            QVariant result = Qt::Unchecked;
            if (filter && filter->is_valid() && !filter->get_int("disable"))
                result = Qt::Checked;
            delete filter;
            return result;
        }
        break;
    case TypeDisplayRole: {
            QVariant result;
            const QmlMetadata* meta = m_metaList[index.row()];
            if (meta && meta->isAudio()) {
                result = tr("Audio");
            } else if (meta && meta->needsGPU()) {
                result = tr("GPU");
            } else {
                result = tr("Video");
            }
            return result;
        }
        break;
    default:
        break;
    }
    return QVariant();
}