public bool ConvertToWAV(string inPath, string outPath, uint sampleRate, uint sampleSize, uint channels)
{
WaveLib.WaveFormat fmt = new WaveLib.WaveFormat((int)sampleRate, (int)sampleSize, (int)channels);
using (WmaStream str = new WmaStream(inPath, fmt)) {
byte[] buffer = new byte[str.SampleSize * 2];
AudioWriter writer = new WaveWriter(new FileStream(outPath, FileMode.Create), str.Format);
try {
int read;
while ((read = str.Read(buffer, 0, buffer.Length)) > 0)
{
writer.Write(buffer, 0, read);
}
}
finally {
writer.Close();
}
} //str.Close() is automatically called by Dispose.
return(true);
}
private void WMDataFill()
{
//int bufferwriteoffset = 0;
using (WmaStream str = new WmaStream(file)) {
byte[] buffer = new byte[131072];
int firstread = str.Read(buffer, 0, buffer.Length);
sound.Write(0, buffer, LockFlag.None);
//firstread = str.Read(buffer, 0, buffer.Length);
//sound.Write(131072, buffer, LockFlag.None);
try {
int count = 0;
int read;
while ((read = str.Read(buffer, 0, buffer.Length)) > 0)
{
BufferNotificationEvent.WaitOne();
if (sound.PlayPosition < 131071)
{
sound.Write(131072, buffer, LockFlag.None);
}
else
{
sound.Write(0, buffer, LockFlag.None);
}
count++;
}
}
finally {
str.Close();
str.Dispose();
}
BufferNotificationEvent.WaitOne();
End();
}
}
public static void FileEncode(SortableBindingList <FileEntryClass> workinglist, string m4boutputfile,
int TargetRate, int Quant, int usetns,
ProgressUpdate procprogress, AudioBookConverterMain _owner)
{
Owner = _owner;
long inputsamples = 0;
long maxbytes = 0;
ulong filesamples = 0;
ulong totalms = 0;
ulong filems;
int read;
int fileindex = 0;
int lastupdate = 0;
bool havechapters = false;
int bufferfactor = 256;
//scan the files, see if we need chapter processing
foreach (FileEntryClass listitem in workinglist)
{
if (listitem.Chapter)
{
havechapters = true;
if (listitem.ChapterTitle == null)
{
if (listitem.Title != null)
{
listitem.ChapterTitle = listitem.Title;
}
else
{
listitem.ChapterTitle = Path.GetFileNameWithoutExtension(listitem.FilePath);
}
}
}
}
WmaStream wavfile = new WmaStream(workinglist[fileindex].FilePath);
uint samplerate = (uint)wavfile.Format.nSamplesPerSec;
uint numchannels = (uint)wavfile.Format.nChannels;
string tempfile = Path.GetTempFileName();
//FileStream outputfile = new FileStream(tempfile, FileMode.Create);
Bento4Writer mp4writer = new Bento4Writer(m4boutputfile, tempfile);
// Faac Settings
faac encoder = new faac(samplerate, numchannels);
inputsamples = encoder.InputSamples;
maxbytes = encoder.MaxBytes;
encoder.QuantQual = Quant;
encoder.InputFormat = 1;
//encoder.BandWidth = 8000;// (int)samplerate / 6;
encoder.UseTNS = usetns;
encoder.UseLFE = 0;
encoder.BitRate = TargetRate * 1000;
byte[] decoderspecific = encoder.DecoderSpecInfo;
string[] chaptitles = new string[255];
ulong[] chapstart = new ulong[255];
uint totalchapters = 0;
if (havechapters)
{
chapstart[0] = 0;
totalchapters = 0;
if (!workinglist[fileindex].Chapter)
{
chaptitles[0] = "Begin";
}
else
{
chaptitles[0] = workinglist[fileindex].ChapterTitleResolver;
}
}
procprogress.TotalFiles = workinglist.Count;
procprogress.TotalKbytes = (int)wavfile.Length / 1024;
procprogress.CurrentFile = fileindex + 1;
procprogress.CurrentFilename = workinglist[fileindex].FilePath;
read = 0;
//setup buffer for data coming from faac
byte[] aac_buffer = new byte[maxbytes * bufferfactor];
int aac_buffer_offset = 0;
int aac_buffer_frames = 0;
//DateTime start = DateTime.Now;
while (fileindex < workinglist.Count && read != -1)
{
if (Owner.bgAACEncoder.CancellationPending)
{
wavfile.Close();
//outputfile.Close();
//System.IO.File.Delete(tempfile);
return;
}
short[] isamples = new short[inputsamples];
byte[] wavbytes = new byte[inputsamples * 2];
int bytes = 0;
//read from source file
bytes = wavfile.Read(wavbytes, 0, (int)inputsamples * 2);
//update filesamples with number of samples
filesamples += (ulong)bytes / (numchannels * 2);
if (wavfile.Position >= wavfile.Length || bytes < inputsamples * 2)
{
filems = filesamples * 1000 / samplerate;
workinglist[fileindex].Duration = TimeSpan.FromMilliseconds(filems);
//if that file we just ran was flagged as a chapter start, finalize the last and create a new
if (workinglist[fileindex].Chapter && fileindex != 0)
{
chapstart[totalchapters] = totalms;
totalchapters++;
chaptitles[totalchapters] = workinglist[fileindex].ChapterTitleResolver;
}
//accumulate the total millisecond counter
totalms += filems;
fileindex++;
//out of data, move to next file
wavfile.Close();
if (fileindex < workinglist.Count)
{
wavfile = new WmaStream(workinglist[fileindex].FilePath);
//need to read more to get required number of input samples
if (bytes < inputsamples * 2)
{
int requiredbytes = (int)(inputsamples * 2) - bytes;
byte[] extrawavbytes = new byte[requiredbytes];
int extrabytes;
extrabytes = wavfile.Read(extrawavbytes, 0, requiredbytes);
Array.Copy(extrawavbytes, 0, wavbytes, bytes, extrabytes);
bytes += extrabytes;
filesamples = (ulong)extrabytes / (numchannels * 2);
}
else
{
filesamples = 0;
}
procprogress.CurrentFile = fileindex + 1;
procprogress.CurrentKbyte = 1;
procprogress.TotalKbytes = (int)wavfile.Length / 1024;
procprogress.CurrentFilename = workinglist[fileindex].FilePath;
Owner.bgAACEncoder.ReportProgress(0, procprogress);
lastupdate = 0;
}
}
//Notification to user front-end
if (lastupdate > 200)
{
if (bytes == inputsamples * 2)
{
procprogress.CurrentKbyte = (int)wavfile.Position / 1024;
}
else
{
procprogress.CurrentKbyte = procprogress.TotalKbytes;
}
lastupdate = 0;
Owner.bgAACEncoder.ReportProgress(0, procprogress);
}
lastupdate++;
//convert the byte[] into a short[]
int z = 0;
for (int x = 0; x < bytes; x += 2)
{
isamples[z] = (short)((wavbytes[x + 1] << 8) | wavbytes[x] << 0);
z++;
}
byte[] output = new byte[maxbytes];
uint buffersize = 0;
int inputsam = isamples.Length;
//feed the samples to the aac encoder
read = encoder.Encode(isamples, inputsam, out output, out buffersize);
//if the encoder encoded, write it out to the aac buffer
if (read > 0)
{
Array.Copy(output, 0, aac_buffer, aac_buffer_offset, read);
aac_buffer_offset += read;
aac_buffer_frames++;
//if the buffer is full, write it out to bento
if (aac_buffer_frames == bufferfactor)
{
mp4writer.Write(aac_buffer, aac_buffer_frames);
aac_buffer_frames = 0;
aac_buffer_offset = 0;
}
}
} //end sample processing loop
//flush the sample_buffer
if (aac_buffer_frames > 0)
{
mp4writer.Write(aac_buffer, aac_buffer_frames);
}
encoder.Close();
encoder.Dispose();
wavfile.Close();
wavfile.Dispose();
if (havechapters)
{
chapstart[totalchapters] = totalms;
totalchapters++;
mp4writer.WriteChapters(chaptitles, chapstart, totalchapters);
}
////fake chapter data
//for (int fx = 0; fx < 35; fx++) {
// chaptitles[fx] = "Chapter " + fx;
// chapstart[fx] = (ulong)((2500 * fx) + fx);
//}
//totalchapters = 35;
if (Owner.bgAACEncoder.CancellationPending)
{
return;
}
procprogress.CurrentFilename = "Packaging Mpeg4 Audiobook File";
procprogress.TotalFiles = 1;
procprogress.CurrentFile = 1;
procprogress.BentoWorking = true;
Owner.bgAACEncoder.ReportProgress(0, procprogress);
//tempfile = "c:\\mp4utils\\file.aac";
//chapdata = "c:\\mp4utils\\chapdata.txt";
//BentoSharp.Bento4 BentoClass = new Bento4();
//int bentoerror = BentoClass.aac2mp4(tempfile, m4boutputfile, decoderspecific, chapdata, chapstart, totalchapters);
//bentoerror = BentoClass.mp4chapter("c:\\mp4utils\\bentoout.m4b","c:\\mp4utils\\chapout.m4b",chapdata,chaptimes,totalchapters);
//BentoClass = null;
mp4writer.Save();
//System.IO.File.Delete(tempfile);
//System.IO.File.Delete(chapdata);
mp4writer.Dispose();
}
public PlayerClass(AudioBookConverterMain Caller, string filename)
{
if (GetSourceExt(filename) != "mp3")
{
return;
}
file = filename;
Parent = Caller;
Microsoft.DirectX.DirectSound.WaveFormat format = new Microsoft.DirectX.DirectSound.WaveFormat();
WmaStream wmastr = new WmaStream(filename);
format.BlockAlign = wmastr.Format.nBlockAlign;
format.Channels = wmastr.Format.nChannels;
format.SamplesPerSecond = wmastr.Format.nSamplesPerSec;
format.BitsPerSample = wmastr.Format.wBitsPerSample;
format.AverageBytesPerSecond = format.BlockAlign * format.SamplesPerSecond;
wmastr.Dispose();
BufferDescription desc = new BufferDescription(format);
desc.ControlPan = true;
desc.GlobalFocus = true;
desc.BufferBytes = 262144;
desc.ControlPositionNotify = true;
desc.CanGetCurrentPosition = true;
desc.ControlVolume = true;
desc.StickyFocus = true;
desc.LocateInSoftware = true;
desc.ControlEffects = false;
desc.LocateInHardware = false;
desc.Control3D = false;
//MemoryStream bufferstream = new MemoryStream(262144);
Device device = new Device();
device.SetCooperativeLevel(Parent, CooperativeLevel.Priority);
sound = new SecondaryBuffer(desc, device);
sound.SetCurrentPosition(1);
sound.Volume = 0;
sound.Pan = 0;
BufferNotificationEvent = new AutoResetEvent(false);
BufferNotify = new Notify(sound);
BufferPositionNotify[] BufferPositions = new BufferPositionNotify[2];
BufferPositions[0].Offset = 0;
BufferPositions[0].EventNotifyHandle = BufferNotificationEvent.Handle;
BufferPositions[1].Offset = (desc.BufferBytes / 2);
BufferPositions[1].EventNotifyHandle = BufferNotificationEvent.Handle;
BufferNotify.SetNotificationPositions(BufferPositions);
DataTransferThread = new Thread(new ThreadStart(WMDataFill));
//if (GetSourceExt(filename) =="mp4") DataTransferThread = new Thread(new ThreadStart(FaadDataFill));
//if (GetSourceExt(filename) =="flac") DataTransferThread = new Thread(new ThreadStart(FlacDataFill));
//if (GetSourceExt(filename) =="ogg") DataTransferThread = new Thread(new ThreadStart(OggDataFill));
DataTransferThread.Name = "BufferFill";
DataTransferThread.Priority = ThreadPriority.Highest;
DataTransferThread.Start();
}
static void Main(string[] args)
{
uint samplerate = 44100;
uint numchannels = 2;
long inputsamples = 0;
long maxbytes = 0;
string file = "c:\\sandbox\\testfile.mp3";
WmaStream wavfile = new WmaStream(file);
samplerate = (uint)wavfile.Format.nSamplesPerSec;
FileStream outputfile = new FileStream("c:\\mp4utils\\faactest.aac", FileMode.Create);
faac encoder = new faac(samplerate, 2);
inputsamples = encoder.InputSamples;
maxbytes = encoder.MaxBytes;
encoder.BitRate = 16000;
encoder.InputFormat = 1;
encoder.BandWidth = 22050;
encoder.UseTNS = 0;
int read = 0;
uint decoderspeclength = 0;
byte[] decoderspecificinfo = encoder.DecoderSpecInfo;
DateTime start = DateTime.Now;
long totalsamples = 0;
while (wavfile.Position < wavfile.Length && read != -1)
{
short[] isamples = new short[inputsamples];
byte[] wavbytes = new byte[inputsamples * 2];
int bytes = 0;
if (wavfile.Position < wavfile.Length)
{
bytes = wavfile.Read(wavbytes, 0, (int)inputsamples * 2);
}
int z = 0;
for (int x = 0; x < bytes; x += 2)
{
isamples[z] = (short)((wavbytes[x + 1] << 8) | wavbytes[x] << 0);
z++;
}
byte[] output = new byte[maxbytes];
uint buffersize = 0;
int inputsam = (int)inputsamples;
read = encoder.Encode(isamples, inputsam, out output, out buffersize);
outputfile.Write(output, 0, (int)read);
totalsamples += bytes / 2;
}
Console.WriteLine(DateTime.Now - start);
Console.WriteLine("Audio Duration: " + TimeSpan.FromSeconds((totalsamples / samplerate) / numchannels));
outputfile.Close();
}
