/// <summary>
/// 切割mp3
/// </summary>
/// <param name="mp3"></param>
/// <param name="mp3FilePath"></param>
/// <param name="savePath"></param>
public void SplitMP3(MP3Info mp3, string mp3FilePath, string savePath)
{
Process ffmpegProcess = new Process();
ffmpegProcess.StartInfo.UseShellExecute = false;
ffmpegProcess.StartInfo.ErrorDialog = true;
ffmpegProcess.StartInfo.CreateNoWindow = true;
ffmpegProcess.StartInfo.FileName = AppDomain.CurrentDomain.BaseDirectory + "/ffmpeg/ffmpeg.exe";
string beginTime = ToHourTime(mp3.StartTime).ToString("HH:mm:ss.fff");
string endTime;
if (string.IsNullOrEmpty(mp3.NextPosTime))
{
Shell32.ShellClass sc = new Shell32.ShellClass();
var fd = sc.NameSpace(Path.GetDirectoryName(mp3FilePath));
var item = fd.ParseName(Path.GetFileName(mp3FilePath));
mp3.NextPosTime = fd.GetDetailsOf(item, 27).Substring(3) + ".00";
}
endTime = GetSplitTime(ToHourTime(mp3.NextPosTime).AddSeconds(-0.2) - ToHourTime(mp3.StartTime));//尾部去除部分衔接静音（这里是0.2秒）
ffmpegProcess.StartInfo.Arguments = "-y -i " + mp3FilePath + " -ss " + mp3.StartTime + " -t " + endTime + " -acodec copy " + savePath + "/" + mp3.Name + ".mp3";
ffmpegProcess.Start();
ffmpegProcess.WaitForExit();
}
/// <summary>
/// 读取MP3歌词列表（每行一句，每句一个对象）
/// </summary>
/// <returns></returns>
public List<MP3Info> GetMp3List()
{
if (!File.Exists(lrcPath))
{
throw new FileNotFoundException("文件不存在!");
}
//[00:38.10]ちゅうごくじん 〔名〕 中国人
var regexLine = new Regex(@"^\[\d{2}:\d{2}\.\d{1,}\](?<lyric>\S+)\s*.*");//截取歌词内容
var regexTime = new Regex(@"^\[(?<time>\d{2}:\d{2}\.\d{1,})\].*");//截取开始时间
//读取Lrc
using (StreamReader sr = new StreamReader(lrcPath, System.Text.Encoding.GetEncoding("gb2312")))
{
string line;
while ((line = sr.ReadLine()) != null)
{
var groups = regexLine.Match(line).Groups;
if (groups != null && groups["lyric"].Success)
{
//特别处理
if (line.Contains("---")) { continue; }
var word = groups["lyric"].ToString();
if (!WordTable.ContainsKey(word))
{
continue;
}
var pos = new MP3Info();
pos.Name = "w" + WordTable[word].ToString();
pos.StartTime = regexTime.Match(line).Groups["time"].ToString();
int i = MP3LrcList.Count - 1;//上一句歌词
MP3LrcList.Add(pos);
//修改上句歌词的结局时间为当前歌词的开始时间
if (i > -1)
{
MP3LrcList[i].NextPosTime = pos.StartTime;
}
}
}
}
return MP3LrcList;
}
