public void Convert(Mencoder.VideoType vidType, Mencoder.AudioType audType, string videoToConvertFilePath, string outputFilePath)
{
// http://www.mplayerhq.hu/DOCS/HTML/en/menc-feat-selecting-codec.html
StringBuilder cmd = new StringBuilder();
// mencoder.exe
cmd.Append("-ovc"); // video codec for encoding
cmd.Append(" ");
bool lavcVideoSelected = false;
bool lavcAudioSelected = false;
if (vidType == Mencoder.VideoType.x264)
{
cmd.Append("x264");
}
else if (vidType == Mencoder.VideoType.xvid)
{
cmd.Append("xvid");
}
else
{
lavcVideoSelected = true;
cmd.Append("lavc"); // use one of libavcodec's video codecs
}
cmd.Append(" ");
cmd.Append("-oac"); // audio codec for encoding
cmd.Append(" ");
if (audType == Mencoder.AudioType.mp3)
{
cmd.Append("mp3lame");
}
else
{
lavcAudioSelected = true;
cmd.Append("lavc"); // use one of libavcodec's audio codecs
}
cmd.Append(" ");
cmd.Append('"' + videoToConvertFilePath + '"');
cmd.Append(" ");
if (vidType == Mencoder.VideoType.webm)
{
cmd.Append("-ffourcc");
cmd.Append(" ");
cmd.Append("VP80");
cmd.Append(" ");
}
if (lavcAudioSelected == true || lavcVideoSelected == true)
{
cmd.Append("-lavcopts");
cmd.Append(" ");
}
if (lavcVideoSelected) // Using builtin codes from lavc
// setup the selected video format
{
if (vidType == Mencoder.VideoType.webm)
{
cmd.Append("vcodec=libvpx");
}
else if (vidType == Mencoder.VideoType.mpeg4)
{
cmd.Append("vcodec=mpeg4");
}
else if (vidType == Mencoder.VideoType.wmv1)
{
cmd.Append("vcodec=wmv1");
}
else if (vidType == Mencoder.VideoType.wmv2)
{
cmd.Append("vcodec=wmv2");
}
cmd.Append(" ");
}
if (lavcAudioSelected)
{
// setup the selected audio format
if (audType == Mencoder.AudioType.vorbis)
{
cmd.Append("acodec=libvorbis");
}
else if (audType == Mencoder.AudioType.ac3)
{
cmd.Append("acodec=ac3");
}
else if (audType == Mencoder.AudioType.flac)
{
cmd.Append("acodec=flac");
}
else if (audType == Mencoder.AudioType.mp2)
{
cmd.Append("acodec=mp2");
}
else if (audType == Mencoder.AudioType.wmav1)
{
cmd.Append("acodec=wmav1");
}
else if (audType == Mencoder.AudioType.wmav2)
{
cmd.Append("acodec=wmav2");
}
cmd.Append(" ");
}
cmd.Append("-vf harddup"); // avoid audio/video sync issues
cmd.Append(" ");
cmd.Append("-o");
cmd.Append(" ");
cmd.Append('"' + outputFilePath + '"');
Convert(cmd.ToString());
}
public Task ConvertAsync(Mencoder.VideoType vidType, Mencoder.AudioType audType, string videoToConvertFilePath, string outputFilePath)
{
return(Task.Run(() => Convert(vidType, audType, videoToConvertFilePath, outputFilePath)));
}