private TrackType EacOutputToTrackType(string str)
{
str = str.Trim();
EacOutputTrackType outputType = s_eacOutputs.Find(val => str.StartsWith(val.RawOutput));
return(outputType.Type);
}
private TrackCodec EacOutputToTrackCodec(string str)
{
str = str.Trim();
EacOutputTrackType outputType = s_eacOutputs.Find(val => val.RawOutput == str);
return(outputType.Codec);
}
/// <summary>
///
/// </summary>
/// <param name="fileName"></param>
/// <param name="completedCallback">抽取的轨道，不包含重复轨道；重复轨道文件名带有.bak</param>
public MediaFile Extract(Action <double, EACProgressType> progressCallback)
{
if (!new FileInfo(sourceFile).Exists)
{
return(null);
}
_progressCallback = progressCallback;
state = ProcessState.FetchStream;
StartEac($"\"{sourceFile}\"", false);
var args = new List <string>();
var extractResult = new List <TrackInfo>();
List <TrackInfo> srcAudio = new List <TrackInfo>();
List <TrackInfo> srcSub = new List <TrackInfo>();
foreach (TrackInfo track in tracks)
{
switch (track.Type)
{
case TrackType.Audio:
srcAudio.Add(track);
break;
case TrackType.Subtitle:
srcSub.Add(track);
break;
default:
break;
}
}
if (srcAudio.Count != JobAudio.Count)
{
OKETaskException ex = new OKETaskException(Constants.audioNumMismatchSmr);
ex.progress = 0.0;
ex.Data["SRC_TRACK"] = srcAudio.Count;
ex.Data["DST_TRACK"] = JobAudio.Count;
throw ex;
}
if (srcSub.Count != JobSub.Count)
{
OKETaskException ex = new OKETaskException(Constants.subNumMismatchSmr);
ex.progress = 0.0;
ex.Data["SRC_TRACK"] = srcSub.Count;
ex.Data["DST_TRACK"] = JobSub.Count;
throw ex;
}
int audioId = 0, subId = 0;
foreach (TrackInfo track in tracks)
{
EacOutputTrackType trackType = s_eacOutputs.Find(val => val.Codec == track.Codec);
if (!(trackType.Extract || trackType.Type == TrackType.Video && extractVideo))
{
continue;
}
;
if (track.Type == TrackType.Audio)
{
AudioInfo jobAudioInfo = JobAudio[audioId++];
if (jobAudioInfo.MuxOption == MuxOption.Skip)
{
continue;
}
}
if (track.Type == TrackType.Subtitle)
{
Info jobSubInfo = JobSub[subId++];
if (jobSubInfo.MuxOption == MuxOption.Skip)
{
continue;
}
}
args.Add($"{track.Index}:\"{track.OutFileName}\"");
extractResult.Add(track);
}
JobAudio.RemoveAll(info => info.MuxOption == MuxOption.Skip);
JobSub.RemoveAll(info => info.MuxOption == MuxOption.Skip);
state = ProcessState.ExtractStream;
StartEac($"\"{sourceFile}\" {string.Join(" ", args)}", true);
foreach (TrackInfo track in extractResult)
{
FileInfo finfo = new FileInfo(track.OutFileName);
if (!finfo.Exists || finfo.Length == 0)
{
throw new Exception("文件输出失败: " + track.OutFileName);
}
else
{
track.FileSize = finfo.Length;
}
if (track.Type == TrackType.Audio)
{
FFmpegVolumeChecker checker = new FFmpegVolumeChecker(track.OutFileName);
checker.start();
checker.waitForFinish();
track.MaxVolume = checker.MaxVolume;
track.MeanVolume = checker.MeanVolume;
}
}
List <int> removeList = new List <int>();
for (int i = 0; i < extractResult.Count; i++)
{
TrackInfo track = extractResult[i];
if (removeList.Contains(track.Index))
{
continue;
}
if (track.IsEmpty())
{
Logger.Warn(track.OutFileName + "被检测为空轨道。");
removeList.Add(track.Index);
track.MarkSkipping();
continue;
}
for (int j = i + 1; j < extractResult.Count; j++)
{
TrackInfo other = extractResult[j];
if (track.IsDuplicate(other))
{
Logger.Warn(track.OutFileName + "被检测为与" + other.OutFileName + "重复。");
removeList.Add(other.Index);
other.MarkSkipping();
}
}
}
MediaFile mf = new MediaFile();
audioId = 0;
subId = 0;
foreach (var item in extractResult)
{
OKEFile file = new OKEFile(item.OutFileName);
switch (item.Type)
{
case TrackType.Audio:
AudioInfo audioInfo = JobAudio[audioId++];
audioInfo.DupOrEmpty = item.DupOrEmpty;
mf.AddTrack(new AudioTrack(file, audioInfo));
break;
case TrackType.Subtitle:
Info subInfo = JobSub[subId++];
subInfo.DupOrEmpty = item.DupOrEmpty;
mf.AddTrack(new SubtitleTrack(file, subInfo));
break;
case TrackType.Chapter:
FileInfo txtChapter = new FileInfo(Path.ChangeExtension(sourceFile, ".txt"));
if (txtChapter.Exists)
{
Logger.Info("检测到单独准备的章节，不予添加");
}
else
{
file.Rename(txtChapter.FullName);
}
break;
case TrackType.Video:
mf.AddTrack(new VideoTrack(file, new VideoInfo()));
break;
default:
System.Windows.MessageBox.Show(item.OutFileName, "不认识的轨道呢");
break;
}
}
return(mf);
}