private static string[] SplitAudio(string fileName, double[] segments, string prefix, string outputDirectory)
{
if (fileName == null)
{
throw new ArgumentNullException("fileName");
}
if (segments == null)
{
throw new ArgumentNullException("segments");
}
if (prefix == null)
{
throw new ArgumentNullException("prefix");
}
if (outputDirectory == null)
{
throw new ArgumentNullException("outputDirectory");
}
int i = Bass.BASS_StreamCreateFile(fileName, 0, 0,
BASSFlag.BASS_STREAM_PRESCAN | BASSFlag.BASS_STREAM_DECODE);
if (i == 0)
{
throw new InvalidOperationException("Couldn't create stream");
}
double sum = segments.Sum();
long length = Bass.BASS_ChannelGetLength(i);
double seconds = Bass.BASS_ChannelBytes2Seconds(i, length);
if (sum > seconds)
{
throw new ArgumentOutOfRangeException("segments", "Required segments exceed file duration");
}
BASS_CHANNELINFO info = Bass.BASS_ChannelGetInfo(i);
if (!Directory.Exists(outputDirectory))
{
Directory.CreateDirectory(outputDirectory);
}
int index = 0;
var list = new List <string>();
foreach (double segment in segments)
{
double d = segment;
long seconds2Bytes = Bass.BASS_ChannelSeconds2Bytes(i, d);
var buffer = new byte[seconds2Bytes];
int getData = Bass.BASS_ChannelGetData(i, buffer, buffer.Length);
string name = string.Format("{0}_{1}.wav", prefix, index);
string combine = Path.Combine(outputDirectory, name);
int bitsPerSample = info.Is8bit ? 8 : info.Is32bit ? 32 : 16;
var waveWriter = new WaveWriter(combine, info.chans, info.freq, bitsPerSample, true);
waveWriter.WriteNoConvert(buffer, buffer.Length);
waveWriter.Close();
list.Add(combine);
index++;
}
bool free = Bass.BASS_StreamFree(i);
return(list.ToArray());
}
