Пример #1
0
Mlt::Producer* Video4LinuxWidget::newProducer(Mlt::Profile& profile)
{
    if (!profile.is_explicit()) {
        Mlt::Profile ntscProfile("dv_ntsc");
        Mlt::Profile palProfile("dv_pal");
        if (ui->v4lWidthSpinBox->value() == ntscProfile.width() && ui->v4lHeightSpinBox->value() == ntscProfile.height()) {
            profile.set_sample_aspect(ntscProfile.sample_aspect_num(), ntscProfile.sample_aspect_den());
            profile.set_progressive(ntscProfile.progressive());
            profile.set_colorspace(ntscProfile.colorspace());
            profile.set_frame_rate(ntscProfile.frame_rate_num(), ntscProfile.frame_rate_den());
        } else if (ui->v4lWidthSpinBox->value() == palProfile.width() && ui->v4lHeightSpinBox->value() == palProfile.height()) {
            profile.set_sample_aspect(palProfile.sample_aspect_num(), palProfile.sample_aspect_den());
            profile.set_progressive(palProfile.progressive());
            profile.set_colorspace(palProfile.colorspace());
            profile.set_frame_rate(palProfile.frame_rate_num(), palProfile.frame_rate_den());
        } else {
            profile.set_width(ui->v4lWidthSpinBox->value());
            profile.set_height(ui->v4lHeightSpinBox->value());
            profile.set_sample_aspect(1, 1);
            profile.set_progressive(1);
            profile.set_colorspace(601);
            profile.set_frame_rate(ui->v4lFramerateSpinBox->value() * 10000, 10000);
        }
    }
    Mlt::Producer* p = new Mlt::Producer(profile, URL().toLatin1().constData());
    if (!p->is_valid()) {
        delete p;
        p = new Mlt::Producer(profile, "color:");
        p->set("resource1", QString("video4linux2:%1")
               .arg(ui->v4lLineEdit->text()).toLatin1().constData());
        p->set("error", 1);
    }
    else if (m_audioWidget) {
        Mlt::Producer* audio = dynamic_cast<AbstractProducerWidget*>(m_audioWidget)->newProducer(profile);
        Mlt::Tractor* tractor = new Mlt::Tractor;
        tractor->set("_profile", profile.get_profile(), 0);
        tractor->set_track(*p, 0);
        delete p;
        tractor->set_track(*audio, 1);
        delete audio;
        p = new Mlt::Producer(tractor->get_producer());
        delete tractor;
        p->set("resource1", QString("video4linux2:%1")
               .arg(ui->v4lLineEdit->text()).toLatin1().constData());
    }
    p->set("device", ui->v4lLineEdit->text().toLatin1().constData());
    p->set("width", ui->v4lWidthSpinBox->value());
    p->set("height", ui->v4lHeightSpinBox->value());
    if (ui->v4lFramerateSpinBox->value() > 0)
        p->set("framerate", ui->v4lFramerateSpinBox->value());
    p->set("standard", ui->v4lStandardCombo->currentText().toLatin1().constData());
    p->set("channel", ui->v4lChannelSpinBox->value());
    p->set("audio_ix", ui->v4lAudioComboBox->currentIndex());
    p->set("force_seekable", 0);
    p->set(kBackgroundCaptureProperty, 1);
    p->set(kShotcutCaptionProperty, "Video4Linux");
    return p;
}
Mlt::Producer *DirectShowVideoWidget::producer(Mlt::Profile& profile)
{
#if 0
    if (!profile.is_explicit()) {
        Mlt::Profile ntscProfile("dv_ntsc");
        Mlt::Profile palProfile("dv_pal");
        if (ui->v4lWidthSpinBox->value() == ntscProfile.width() && ui->v4lHeightSpinBox->value() == ntscProfile.height()) {
            profile.set_sample_aspect(ntscProfile.sample_aspect_num(), ntscProfile.sample_aspect_den());
            profile.set_progressive(ntscProfile.progressive());
            profile.set_colorspace(ntscProfile.colorspace());
            profile.set_frame_rate(ntscProfile.frame_rate_num(), ntscProfile.frame_rate_den());
        } else if (ui->v4lWidthSpinBox->value() == palProfile.width() && ui->v4lHeightSpinBox->value() == palProfile.height()) {
            profile.set_sample_aspect(palProfile.sample_aspect_num(), palProfile.sample_aspect_den());
            profile.set_progressive(palProfile.progressive());
            profile.set_colorspace(palProfile.colorspace());
            profile.set_frame_rate(palProfile.frame_rate_num(), palProfile.frame_rate_den());
        } else {
            profile.set_width(ui->v4lWidthSpinBox->value());
            profile.set_height(ui->v4lHeightSpinBox->value());
            profile.set_sample_aspect(1, 1);
            profile.set_progressive(1);
            profile.set_colorspace(601);
            profile.set_frame_rate(ui->v4lFramerateSpinBox->value() * 10000, 10000);
        }
    }
#endif
    Mlt::Producer* p = 0;
    if (ui->videoCombo->currentIndex() > 0) {
        p = new Mlt::Producer(profile, QString("dshow:video=%1")
                          .arg(ui->videoCombo->currentText())
                          .toLatin1().constData());
    }
    if (ui->audioCombo->currentIndex() > 0) {
        Mlt::Producer* audio = new Mlt::Producer(profile,
            QString("dshow:audio=%1").arg(ui->audioCombo->currentText())
                                     .toLatin1().constData());
        if (p && p->is_valid() && audio->is_valid()) {
            Mlt::Tractor* tractor = new Mlt::Tractor;
            tractor->set("_profile", profile.get_profile(), 0);
            tractor->set("resource", p->get("resource"));
            tractor->set("resource2", audio->get("resource"));
            tractor->set_track(*p, 0);
            delete p;
            tractor->set_track(*audio, 1);
            delete audio;
            p = tractor;
        } else {
            p = audio;
        }
    }
    if (!p || !p->is_valid()) {
        delete p;
        p = new Mlt::Producer(profile, "color:");
        if (ui->videoCombo->currentIndex() > 0) {
            p->set("resource", QString("dshow:video=%1")
                   .arg(ui->videoCombo->currentText())
                   .toLatin1().constData());
        }
        if (ui->audioCombo->currentIndex() > 0) {
            QString resource = QString("dshow:audio=%1").arg(ui->audioCombo->currentText());
            if (ui->videoCombo->currentIndex() > 0) {
                p->set("resource2", resource.toLatin1().constData());
            } else {
                p->set("resource", resource.toLatin1().constData());
            }
        }
        p->set("error", 1);
    }
    p->set("force_seekable", 0);
    return p;
}