private int SetupResultPcm(AudioData from, List<FilterBase> filters, out AudioData to, FileFormatType toFileFormat)
{
to = new AudioData();
to.preferredSaveFormat = toFileFormat;
var fmt = FilterSetup(from, 0, filters);
to.meta = new WWFlacRWCS.Metadata(from.meta);
to.meta.sampleRate = fmt.SampleRate;
to.meta.totalSamples = fmt.NumSamples;
to.meta.channels = fmt.NumChannels;
switch (toFileFormat) {
case FileFormatType.FLAC:
#if true
to.meta.bitsPerSample = 24;
#endif
break;
case FileFormatType.DSF:
to.meta.bitsPerSample = 1;
break;
}
if (from.picture != null) {
to.picture = new byte[from.picture.Length];
System.Array.Copy(from.picture, to.picture, to.picture.Length);
}
// allocate "to" pcm data
to.pcm = new List<AudioDataPerChannel>();
for (int ch = 0; ch < to.meta.channels; ++ch) {
byte[] data;
// set silent sample values to output buffer
switch (toFileFormat) {
case FileFormatType.DSF:
if (0x7FFFFFC7 < (to.meta.totalSamples + 7) / 8) {
return (int)WWFlacRWCS.FlacErrorCode.OutputFileTooLarge;
}
data = new byte[(to.meta.totalSamples + 7) / 8];
for (long i = 0; i < data.LongLength; ++i) {
data[i] = 0x69;
}
break;
case FileFormatType.FLAC:
if (0x7FFFFFC7 < to.meta.totalSamples * (to.meta.bitsPerSample / 8)) {
return (int)WWFlacRWCS.FlacErrorCode.OutputFileTooLarge;
}
data = new byte[to.meta.totalSamples * (to.meta.bitsPerSample / 8)];
break;
default:
System.Diagnostics.Debug.Assert(false);
data = null;
break;
}
var adp = new AudioDataPerChannel();
adp.data = data;
adp.bitsPerSample = to.meta.bitsPerSample;
adp.totalSamples = to.meta.totalSamples;
to.pcm.Add(adp);
}
return 0;
}
private int SetupResultPcm(AudioData from, List <FilterBase> filters, out AudioData to, FileFormatType toFileFormat)
{
to = new AudioData();
to.preferredSaveFormat = toFileFormat;
var fmt = FilterSetup(from, 0, filters);
to.meta = new WWFlacRWCS.Metadata(from.meta);
to.meta.sampleRate = fmt.SampleRate;
to.meta.totalSamples = fmt.NumSamples;
to.meta.channels = fmt.NumChannels;
switch (toFileFormat)
{
case FileFormatType.FLAC:
#if true
to.meta.bitsPerSample = 24;
#endif
break;
case FileFormatType.DSF:
to.meta.bitsPerSample = 1;
break;
}
if (from.picture != null)
{
to.picture = new byte[from.picture.Length];
System.Array.Copy(from.picture, to.picture, to.picture.Length);
}
// allocate "to" pcm data
to.pcm = new List <AudioDataPerChannel>();
for (int ch = 0; ch < to.meta.channels; ++ch)
{
byte[] data;
// set silent sample values to output buffer
switch (toFileFormat)
{
case FileFormatType.DSF:
if (0x7FFFFFC7 < (to.meta.totalSamples + 7) / 8)
{
return((int)WWFlacRWCS.FlacErrorCode.OutputFileTooLarge);
}
data = new byte[(to.meta.totalSamples + 7) / 8];
for (long i = 0; i < data.LongLength; ++i)
{
data[i] = 0x69;
}
break;
case FileFormatType.FLAC:
if (0x7FFFFFC7 < to.meta.totalSamples * (to.meta.bitsPerSample / 8))
{
return((int)WWFlacRWCS.FlacErrorCode.OutputFileTooLarge);
}
data = new byte[to.meta.totalSamples * (to.meta.bitsPerSample / 8)];
break;
default:
System.Diagnostics.Debug.Assert(false);
data = null;
break;
}
var adp = new AudioDataPerChannel();
adp.data = data;
adp.bitsPerSample = to.meta.bitsPerSample;
adp.totalSamples = to.meta.totalSamples;
to.pcm.Add(adp);
}
return(0);
}
private static int WriteFlacFile(ref AudioData ad, string path)
{
int rv;
var flac = new WWFlacRWCS.FlacRW();
rv = flac.EncodeInit(ad.meta);
if (rv < 0) {
return rv;
}
rv = flac.EncodeSetPicture(ad.picture);
if (rv < 0) {
flac.EncodeEnd();
return rv;
}
for (int ch = 0; ch < ad.meta.channels; ++ch) {
long lrv = flac.EncodeAddPcm(ch, ad.pcm[ch].data);
if (lrv < 0) {
flac.EncodeEnd();
return (int)lrv;
}
}
rv = flac.EncodeRun(path);
if (rv < 0) {
flac.EncodeEnd();
return rv;
}
flac.EncodeEnd();
return 0;
}
private static int WriteDsfFile(ref AudioData ad, string path)
{
int rv;
var dsf = new WWDsfWriter();
rv = dsf.EncodeInit(ad.meta);
if (rv < 0) {
return rv;
}
rv = dsf.EncodeSetPicture(ad.picture);
if (rv < 0) {
dsf.EncodeEnd();
return rv;
}
for (int ch = 0; ch < ad.meta.channels; ++ch) {
long lrv = dsf.EncodeAddPcm(ch, ad.pcm[ch].data);
if (lrv < 0) {
dsf.EncodeEnd();
return (int)lrv;
}
}
rv = dsf.EncodeRun(path);
if (rv < 0) {
dsf.EncodeEnd();
return rv;
}
dsf.EncodeEnd();
return 0;
}
private static int ReadWavFile(string path, out AudioData ad)
{
ad = new AudioData();
using (var br = new BinaryReader(File.Open(path, FileMode.Open, FileAccess.Read, FileShare.Read))) {
var reader = new WavRWLib2.WavReader();
if (!reader.ReadHeaderAndSamples(br, 0, -1)) {
MessageBox.Show(
string.Format("Error: Failed to read WAV file: {0}", path));
return -1;
}
ad.meta = new WWFlacRWCS.Metadata();
ad.meta.albumStr = reader.AlbumName;
ad.meta.artistStr = reader.ArtistName;
ad.meta.titleStr = reader.Title;
ad.meta.pictureBytes = reader.PictureBytes;
ad.picture = reader.PictureData;
ad.meta.totalSamples = reader.NumFrames;
ad.meta.channels = reader.NumChannels;
ad.meta.sampleRate = reader.SampleRate;
var interleaved = reader.GetSampleArray();
int bytesPerSample = reader.BitsPerSample / 8;
ad.pcm = new List<AudioDataPerChannel>();
for (int ch = 0; ch < reader.NumChannels; ++ch) {
var pcmOneChannel = new byte[reader.NumFrames * bytesPerSample];
for (int i = 0; i < reader.NumFrames; ++i) {
for (int b = 0; b < reader.BitsPerSample / 8; ++b) {
pcmOneChannel[bytesPerSample * i + b] =
interleaved[bytesPerSample * (reader.NumChannels * i + ch) + b];
}
}
var pcm24 = PcmDataLib.Util.ConvertTo24bit(reader.BitsPerSample, reader.NumFrames, reader.SampleValueRepresentationType, pcmOneChannel);
var adp = new AudioDataPerChannel();
adp.data = pcm24;
adp.offsBytes = 0;
adp.bitsPerSample = 24;
adp.totalSamples = ad.meta.totalSamples;
ad.pcm.Add(adp);
}
// converted to 24bit
ad.meta.bitsPerSample = 24;
ad.preferredSaveFormat = FileFormatType.FLAC;
return 0;
}
}
private static int ReadFlacFile(string path, out AudioData ad)
{
ad = new AudioData();
var flac = new WWFlacRWCS.FlacRW();
int rv = flac.DecodeAll(path);
if (rv < 0) {
return rv;
}
rv = flac.GetDecodedMetadata(out ad.meta);
if (rv < 0) {
return rv;
}
rv = flac.GetDecodedPicture(out ad.picture, ad.meta.pictureBytes);
if (rv < 0) {
return rv;
}
ad.pcm = new List<AudioDataPerChannel>();
for (int ch = 0; ch < ad.meta.channels; ++ch) {
byte[] pcm;
long lrv = flac.GetDecodedPcmBytes(ch, 0, out pcm, ad.meta.totalSamples * (ad.meta.bitsPerSample / 8));
if (lrv < 0) {
return (int)lrv;
}
var pcm24 = PcmDataLib.Util.ConvertTo24bit(ad.meta.bitsPerSample, ad.meta.totalSamples, PcmDataLib.PcmData.ValueRepresentationType.SInt, pcm);
var adp = new AudioDataPerChannel();
adp.data = pcm24;
adp.offsBytes = 0;
adp.bitsPerSample = 24;
adp.totalSamples = ad.meta.totalSamples;
ad.pcm.Add(adp);
}
// converted to 24bit
ad.meta.bitsPerSample = 24;
ad.preferredSaveFormat = FileFormatType.FLAC;
flac.DecodeEnd();
return 0;
}
private static PcmFormat FilterSetup(AudioData from, int ch, List<FilterBase> filters)
{
var fmt = new PcmFormat(from.meta.channels, ch, from.meta.sampleRate, from.meta.totalSamples);
foreach (var f in filters) {
fmt = f.Setup(fmt);
}
return fmt;
}
