// TODO: 变更编码参数
public QAACEncoder(AudioJob j, int bitrate = Constants.QAACBitrate) : base()
{
if (j.Input != "-")
{ //not from stdin, but an actual file
j.Input = $"\"{j.Input}\"";
}
executable = Constants.QAACPath;
commandLine = $"-i -v {bitrate} -q 2 --no-delay -o \"{j.Output}\" {j.Input}";
}
// TODO: 变更编码参数
public QAACEncoder(string QAACPath, AudioJob j, int bitrate = 128) : base()
{
if (j.Input == "-")
{
// stdin
}
executable = QAACPath;
commandLine = "-i -v " + bitrate + " -q 2 --no-delay -o " + j.Output + " " + j.Input;
}
// TODO: 变更编码参数
public FLACDecoder(string FlacPath, AudioJob j) : base()
{
commandLine = "-d ";
if (j.Output == "-")
{
commandLine += "--stdout ";
}
else if (j.Output != "")
{
commandLine += "-o " + j.Output;
}
if (Path.GetExtension(j.Input) == ".flac")
{
commandLine += j.Input;
}
executable = FlacPath;
}
public void Start()
{
// TODO: 只考虑完整的视频压制流程
if (job.JobType != "video")
{
return;
}
VideoJob vjob = job as VideoJob;
// 抽取音轨
FileInfo eacInfo = new FileInfo(".\\tools\\eac3to\\eac3to.exe");
if (!eacInfo.Exists)
{
throw new Exception("Eac3to 不存在");
}
EACDemuxer eac = new EACDemuxer(eacInfo.FullName, vjob.config.InputFile);
var audioTracks = eac.Extract((double progress, EACProgressType type) => {
switch (type)
{
case EACProgressType.Analyze:
vjob.config.Status = "轨道分析中";
vjob.config.ProgressValue = progress;
break;
case EACProgressType.Process:
vjob.config.Status = "抽取音轨中";
vjob.config.ProgressValue = progress;
break;
case EACProgressType.Completed:
vjob.config.Status = "音轨抽取完毕";
vjob.config.ProgressValue = progress;
break;
default:
return;
}
});
// 默认列表是按照顺序来
string audioTrack = audioTracks[0].OutFileName;
// 音频转码
List <string> audioFile = new List <string>();
foreach (var track in vjob.config.AudioTracks)
{
var audioOutput = audioTracks[track.TrackId];
string audioOutpath = audioOutput.OutFileName;
if (track.Format.ToUpper() == "AAC")
{
vjob.config.Status = "音轨转码中";
vjob.config.ProgressValue = -1;
if (audioOutput.FileExtension == ".flac")
{
AudioJob aDecode = new AudioJob("WAV");
aDecode.Input = audioOutput.OutFileName;
aDecode.Output = "-";
FLACDecoder flac = new FLACDecoder(".\\tools\\flac\\flac.exe", aDecode);
AudioJob aEncode = new AudioJob("AAC");
aEncode.Input = "-";
aEncode.Output = Path.ChangeExtension(audioOutpath, ".aac");
QAACEncoder qaac = new QAACEncoder(".\\tools\\qaac\\qaac.exe", aEncode, track.Bitrate);
CMDPipeJobProcessor cmdpipe = CMDPipeJobProcessor.NewCMDPipeJobProcessor(flac, qaac);
cmdpipe.start();
cmdpipe.waitForFinish();
audioOutpath = aEncode.Output;
}
}
var audioFileInfo = new FileInfo(audioOutpath);
if (audioFileInfo.Length < 1024)
{
// 无效音轨
// TODO: 提示用户不能封装
File.Move(audioOutpath, Path.ChangeExtension(audioOutpath, ".bak") + audioFileInfo.Extension);
continue;
}
if (!track.SkipMuxing)
{
audioFile.Add(audioOutpath);
}
}
vjob.config.Status = "获取信息中";
IJobProcessor processor = x265Encoder.init(vjob, vjob.config.EncoderParam);
vjob.config.Status = "压制中";
vjob.config.ProgressValue = 0.0;
processor.start();
processor.waitForFinish();
if (vjob.config.ContainerFormat != "")
{
// 封装
vjob.config.Status = "封装中";
FileInfo mkvInfo = new FileInfo(".\\tools\\mkvtoolnix\\mkvmerge.exe");
if (!mkvInfo.Exists)
{
throw new Exception("mkvmerge不存在");
}
FileInfo lsmash = new FileInfo(".\\tools\\l-smash\\muxer.exe");
if (!lsmash.Exists)
{
throw new Exception("l-smash 封装工具不存在");
}
AutoMuxer muxer = new AutoMuxer(mkvInfo.FullName, lsmash.FullName);
muxer.ProgressChanged += progress => vjob.config.ProgressValue = progress;
List <string> mergeList = new List <string> {
vjob.config.InputFile + ".hevc",
Path.ChangeExtension(vjob.config.InputFile, ".txt"),
};
mergeList.AddRange(audioFile);
muxer.StartMerge(mergeList, vjob.Output);
}
vjob.config.Status = "完成";
vjob.config.ProgressValue = 100;
}