286 {

   286 {

   287     AVFormatContext* pContext = NULL;

   287     AVFormatContext* pContext = NULL;

   288     QByteArray utf8path = filepath.toUtf8();

   288     QByteArray utf8path = filepath.toUtf8();

   289     if (avformat_open_input(&pContext, utf8path.data(), NULL, NULL) < 0)

   289     if (avformat_open_input(&pContext, utf8path.data(), NULL, NULL) < 0)

   290         return "";

   290         return "";

   291     if (avformat_find_stream_info(pContext, NULL) < 0)

   294     if (avformat_find_stream_info(pContext, NULL) < 0)

   292         return "";

   296         return "";

   293 

   297 

   294     int s = float(pContext->duration)/AV_TIME_BASE;

   298     int s = float(pContext->duration)/AV_TIME_BASE;

   295     QString desc = QString(tr("Duration: %1m %2s\n")).arg(s/60).arg(s%60);

   299     QString desc = QString(tr("Duration: %1m %2s\n")).arg(s/60).arg(s%60);

   296     for (int i = 0; i < pContext->nb_streams; i++)

   300     for (int i = 0; i < pContext->nb_streams; i++)

   320         desc += "\n";

   324         desc += "\n";

   321     }

   325     }

   322     AVDictionaryEntry* pComment = av_dict_get(pContext->metadata, "comment", NULL, 0);

   326     AVDictionaryEntry* pComment = av_dict_get(pContext->metadata, "comment", NULL, 0);

   323     if (pComment)

   327     if (pComment)

   324         desc += QString("\n") + pComment->value;

   328         desc += QString("\n") + pComment->value;

   326     av_close_input_file(pContext);

   330     av_close_input_file(pContext);

   327 #else

   331 #else

   328     avformat_close_input(&pContext);

   332     avformat_close_input(&pContext);

   329 #endif

   333 #endif

   330     return desc;

   334     return desc;