public static void WAVFromPCM(Stream input, Stream output, short channels, int samplesPerSec, int bitsPerSample, int samples = 0, IProgressReport writingProgress = null)
{
short sample_size = (short)((bitsPerSample / 8) * channels);
using (BinaryWriter writer = new BinaryWriter(new StreamKeeper(output)))
{
writer.Write(new char[] { 'R', 'I', 'F', 'F' });
writer.Write((int)0); // Skip size of wave file
writer.Write(new char[] { 'W', 'A', 'V', 'E' });
writer.Write(new char[] { 'f', 'm', 't', ' ' });
writer.Write((int)16); // Size of header
writer.Write((short)1); // Format tag - PCM
writer.Write(channels);
writer.Write(samplesPerSec);
writer.Write((int)(sample_size * samplesPerSec)); // average bytes per sec
writer.Write(sample_size); // full sample size..
writer.Write((short)bitsPerSample);
writer.Write(new char[] { 'd', 'a', 't', 'a' });
writer.Write((int)0); // Skip size of data
}
if (samples != 0)
{
if (input.CopyToCount(output, samples * sample_size, writingProgress) != samples * sample_size)
{
// Check output size
throw new Exception("Invalid WAV size");
}
}
else
{
// Write the pcm
input.CopyTo(output);
if (writingProgress != null)
{
writingProgress.SetProgress(writingProgress.GetFullValue());
}
}
output.Seek(4, SeekOrigin.Begin);
// Write the size
using (BinaryWriter writer = new BinaryWriter(new StreamKeeper(output)))
{
writer.Write((int)(output.Length - 8));
}
output.Seek(40, SeekOrigin.Begin);
// Write the size
using (BinaryWriter writer = new BinaryWriter(new StreamKeeper(output)))
{
writer.Write((int)(output.Length - 44));
}
}
public void SetProgress(long value)
{
Parent.SetProgress((long)(StartProgress + value * Unit));
}
/* TODO:
* private void WriteDataInline(Stream stream, List<Entry> entries, Dictionary<Entry, Structs.RPF7EntryInfoTemplate> entriesInfo, int headersEnd)
* {
* Range<FileEntry> oldFileLayout = new Range<FileEntry>(Math.Max(stream.Length, (long)headersEnd));
* List<FileEntry> emptyEntries = new List<FileEntry>();
* List<FileEntry> moveEntries = new List<FileEntry>();
* List<FileEntry> newEntries = new List<FileEntry>();
* // Entries that should be written to temporary files
* List<FileEntry> newSavedEntries = new List<FileEntry>();
*
* // A dictionary of the raw data stream that we need to write to the file
* Dictionary<FileEntry, Stream> entriesStream = new Dictionary<FileEntry, System.IO.Stream>();
*
* // Add the header
* oldFileLayout.AddItem(0, headersEnd, null);
*
* foreach (Entry entry in entries)
* {
* FileEntry fentry = entry as FileEntry;
* if (fentry != null)
* {
*
* // We need to find all the files that depends on the origianl stream first
* FileStreamCreator originalStream = fentry.TryGetOriginalFileStreamCreator();
* if (fentry.Data.GetSize() == 0 && fentry.IsRegularFile() && !((RegularFileEntry)fentry).Compressed)
* {
* emptyEntries.Add(fentry);
* }
* else if (originalStream != null && originalStream.FileStream == this.Stream)
* {
* if (originalStream.Offset < headersEnd) {
* moveEntries.Add(fentry);
* }
* if (!oldFileLayout.AddItem(originalStream.Offset, originalStream.Size, fentry, false))
* {
* // If failed for some reason.. well it can happen if two entries have the same data. Anyway I don't want that two entries will use the same data.
* newSavedEntries.Add(fentry);
* }
* else
* {
* entriesStream[fentry] = new PartialStream(this.Stream, originalStream.Offset, originalStream.Size);
* }
* }
* else if (fentry.Data is FileStreamCreator && ((FileStreamCreator)fentry.Data).FileStream == this.Stream)
* {
* // This file points to the original file, but something about it changed (compression, encryption, ..)
* newSavedEntries.Add(fentry);
* }
* // From here are entries that are not depends on the original strema
* else if ((fentry.IsRegularFile() && ((RegularFileEntry)fentry).Compressed) || fentry.IsResource())
* {
* newSavedEntries.Add(fentry);
* }
* else
* {
* entriesStream[fentry] = fentry.Data.GetStream();
* newEntries.Add(fentry);
* }
* }
* }
*
* foreach (FileEntry entry in newSavedEntries)
* {
* string filepath = Path.GetTempFileName();
* // Let's copy the file to temp folder, this file will be deleted on close
* FileStream writeStream = new FileStream(filepath, FileMode.Create, FileAccess.Write, FileShare.ReadWrite | FileShare.Delete, 0x1000, FileOptions.DeleteOnClose);
*
* entry.Data.GetStream().CopyTo(writeStream);
*
* // Take an handle to the file, so it will be delete only when this handle will be closed.
* FileStream readStream = File.Open(filepath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite | FileShare.Delete);
* writeStream.Close();
*
* entriesStream[entry] = writeStream;
* }
*
* Range<FileEntry> newFileLayout = new Range<FileEntry>();
* }
*/
public void Write(Stream stream, IProgressReport progressReport = null)
{
if (progressReport != null)
{
progressReport.SetMessage("Preparing...");
progressReport.SetProgress(-1);
}
if (this.Filename == "")
{
throw new Exception("Can't save");
}
// Get all the entries
List <Entry> entries = new List <Entry>();
this.Root.AddToList(entries);
Dictionary <Entry, Structs.RPF7EntryInfoTemplate> entriesInfo = new Dictionary <Entry, Structs.RPF7EntryInfoTemplate>();
foreach (Entry entry in entries)
{
Structs.RPF7EntryInfoTemplate entryInfo = new Structs.RPF7EntryInfoTemplate();
// update the is resource field
entryInfo.Field1 = (entry is ResourceEntry) ? 1U : 0U;
entriesInfo[entry] = entryInfo;
}
int shiftNameAccessBy;
Stream names = WriteNames(entries, entriesInfo, out shiftNameAccessBy);
// Fill the header
Info.EntriesCount = entries.Count;
Info.ShiftNameAccessBy = shiftNameAccessBy;
Info.EntriesNamesLength = (int)names.Length;
// Go to current position
stream.Seek(0x10 + 0x10 * Info.EntriesCount + Info.EntriesNamesLength, SeekOrigin.Begin);
// align to 0x200
if (stream.Position % (1 << 9) != 0)
{
stream.Write(new byte[(1 << 9) - ((int)stream.Position % (1 << 9))], 0, (1 << 9) - ((int)stream.Position % (1 << 9)));
}
WriteData(stream, entries, entriesInfo, progressReport);
long end = stream.Position;
using (Stream writer = AES.EncryptStream(new StreamKeeper(stream), sixteenRoundsDecrypt))
{
int currentFreeIndex = 1;
// Last finish to build and write the file
stream.Seek(0, SeekOrigin.Begin);
Info.Write(stream);
Queue <Entry> entriesToProcess = new Queue <Entry>();
entriesToProcess.Enqueue(this.Root);
while (entriesToProcess.Count > 0)
{
Entry entry = entriesToProcess.Dequeue();
if (entry is DirectoryEntry)
{
Structs.RPF7EntryInfoTemplate entryInfo = entriesInfo[entry];
IList <Entry> subentries = (entry as DirectoryEntry).GetEntries();
// Update the info on the sub entries
entryInfo.Field5 = (uint)currentFreeIndex;
entryInfo.Field6 = (uint)subentries.Count;
entriesInfo[entry] = entryInfo;
// Process the sub entries
foreach (Entry subentry in subentries)
{
entriesToProcess.Enqueue(subentry);
}
currentFreeIndex += subentries.Count;
}
// Write the entry info
entriesInfo[entry].Write(writer);
}
// Write names
names.Seek(0, SeekOrigin.Begin);
names.CopyTo(writer);
}
// Seek to end
stream.Seek(end, SeekOrigin.Begin);
// Done!
}
