emacs + goldendict 查单词

slbtty · 2022 年11 月 29 日 12:44

在 fedora 上试了一下，用 6.4.1 的 appimage 的话，Qt Multimedia 需要用系统安装 ffmpeg，sudo dnf install ffmpeg-free

qt/qtmultimedia/blob/1fc49f0c2ff603c39ba9d1dd90f0e621a0fde488/src/multimedia/platform/qplatformmediaintegration.cpp#L74


      
          {
              QMutexLocker locker(&holder.mutex);
              if (holder.instance)
                  return holder.instance;
          
          
    auto plugins = backends();
          
          
    QString type = QString::fromUtf8(qgetenv("QT_MEDIA_BACKEND"));
              if (type.isEmpty() && !plugins.isEmpty()) {
                  type = plugins.first();
                  // FIXME: prefer platform specific backend if available over ffmpeg until it becomes mature
                  if (type == QStringLiteral("ffmpeg") && plugins.size() > 1)
                      type = plugins[1];
              }
          
          
    qCDebug(qLcMediaPlugin) << "loading backend" << type;
              holder.nativeInstance = qLoadPlugin<QPlatformMediaIntegration, QPlatformMediaPlugin>(loader(), type);
          
          
    if (!holder.nativeInstance) {
                  qWarning() << "could not load multimedia backend" << type;
                  holder.nativeInstance = new QDummyIntegration;