protected string BaseMixedFlow(DownloadingItem downloading, string audioUid, string videoUid)
{
// 更新状态显示
downloading.DownloadStatusTitle = DictionaryResource.GetString("MixedFlow");
downloading.DownloadContent = DictionaryResource.GetString("DownloadingVideo");
// 下载大小
downloading.DownloadingFileSize = string.Empty;
// 下载速度
downloading.SpeedDisplay = string.Empty;
//if (videoUid == nullMark)
//{
// return null;
//}
string finalFile = $"{downloading.DownloadBase.FilePath}.mp4";
if (videoUid == null)
{
finalFile = $"{downloading.DownloadBase.FilePath}.aac";
}
// 合并音视频
FFmpegHelper.MergeVideo(audioUid, videoUid, finalFile);
// 获取文件大小
if (File.Exists(finalFile))
{
FileInfo info = new FileInfo(finalFile);
downloading.FileSize = Format.FormatFileSize(info.Length);
}
else
{
downloading.FileSize = Format.FormatFileSize(0);
}
return(finalFile);
}