public FlacReader(string input, WavWriter output)
{
if (output == null)
{
throw new ArgumentNullException("WavWriter");
}
stream = File.OpenRead(input);
reader = new BinaryReader(stream);
writer = output;
context = FLAC__stream_decoder_new();
if (context == IntPtr.Zero)
{
throw new ApplicationException("FLAC: Could not initialize stream decoder!");
}
write = new WriteCallback(Write);
metadata = new MetadataCallback(Metadata);
error = new ErrorCallback(Error);
if (FLAC__stream_decoder_init_file(context,
input, write, metadata, error,
IntPtr.Zero) != 0)
{
throw new ApplicationException("FLAC: Could not open stream for reading!");
}
}
/// <summary>
/// Detect a text
/// </summary>
/// <param name="callback">Callback to be invoked with the detected text</param>
/// <param name="detectOnce">If true, at most one text will be detected</param>
public static void DetectText(MetadataCallback <Text> callback, bool detectOnce = true) // NCDOC
{
if (!Implementation.SupportsMetadata)
{
Util.LogError("Current platform does not support metadata detection");
return;
}
if (callback == null)
{
Util.LogError("Cannot detect text with no callback");
return;
}
MetadataCallback <IMetadata> callbackWrapper = null;
callbackWrapper = text => {
if (!(text is Text))
{
return;
}
if (detectOnce)
{
Implementation.OnMetadata -= callbackWrapper;
}
callback((Text)text);
};
Implementation.OnMetadata += callbackWrapper;
}
public FlacReader(Stream input, WavWriter output)
{
if (output == null)
{
throw new ArgumentNullException("output");
}
stream = input;
writer = output;
context = _flacStreamDecoderNew();
if (context == IntPtr.Zero)
{
throw new ApplicationException("FLAC: Could not initialize stream decoder!");
}
write = Write;
metadata = Metadata;
error = Error;
read = Read;
seek = Seek;
tell = Tell;
length = Length;
eof = Eof;
if (_flacStreamDecoderInitStream(context, read, seek, tell, length, eof, write, metadata,
error, IntPtr.Zero) != 0)
{
throw new ApplicationException("FLAC: Could not open stream for reading!");
}
}
public static void DetectBarcode(MetadataCallback <Barcode> callback, BarcodeFormat format = BarcodeFormat.ALL, bool detectOnce = true)
{
if (!Implementation.SupportsMetadata)
{
Util.LogError("Current platform does not support metadata detection");
return;
}
if (callback == null)
{
Util.LogError("Cannot detect barcode with no callback");
return;
}
MetadataCallback <IMetadata> callbackWrapper = null;
callbackWrapper = barcode => {
if (!(barcode is Barcode))
{
return;
}
if ((((Barcode)barcode).format & format) == 0)
{
return;
}
if (detectOnce)
{
Implementation.OnMetadata -= callbackWrapper;
}
callback((Barcode)barcode);
};
Implementation.OnMetadata += callbackWrapper;
}
/// <summary>
/// Detect a face
/// </summary>
/// <param name="callback">Callback to be invoked with the detected face</param>
public static void DetectFace(MetadataCallback <Face> callback) // NCDOC
{
if (!Implementation.SupportsMetadata)
{
Util.LogError("Current platform does not support metadata detection");
return;
}
if (callback == null)
{
Util.LogError("Cannot detect face with no callback");
return;
}
MetadataCallback <IMetadata> callbackWrapper = null;
callbackWrapper = face => {
if (face is Face)
{
callback((Face)face);
}
};
Implementation.OnMetadata += callbackWrapper;
}
public FlacReader(string input, WavWriter output)
{
if (output == null)
throw new ArgumentNullException("WavWriter");
stream = File.OpenRead(input);
reader = new BinaryReader(stream);
writer = output;
context = FLAC__stream_decoder_new();
if (context == IntPtr.Zero)
throw new ApplicationException("FLAC: Could not initialize stream decoder!");
write = new WriteCallback(Write);
metadata = new MetadataCallback(Metadata);
error = new ErrorCallback(Error);
if (FLAC__stream_decoder_init_file(context,
input, write, metadata, error,
IntPtr.Zero) != 0)
throw new ApplicationException("FLAC: Could not open stream for reading!");
}
public void getMetadata(MetadataCallback successCallback) {}
public void SetMetadata(MetadataCallback successCallback, FileErrorCallback errorCallback, Metadata metadataObject)
{
}
public void GetMetadata(MetadataCallback successCallback, FileErrorCallback errorCallback)
{
}
public void GetMetadata(MetadataCallback successCallback)
{
}
public void getMetadata(MetadataCallback successCallback, ErrorCallback errorCallback)
{
}
static extern int FLAC__stream_encoder_init_stream(IntPtr context, WriteCallback write, SeekCallback seek, TellCallback tell, MetadataCallback metadata, IntPtr userData);
public void getMetadata(MetadataCallback successCallback, ErrorCallback errorCallback) {}
public void SetMetadata(MetadataCallback successCallback, FileErrorCallback errorCallback, Metadata metadataObject) { }
public void GetMetadata(MetadataCallback successCallback, FileErrorCallback errorCallback) { }
private void OnDestroy()
{
callbacks = (MetadataCallback)Delegate.Remove(callbacks, new MetadataCallback(MetadataChangedInternal));
}
private void Awake()
{
callbacks = (MetadataCallback)Delegate.Combine(callbacks, new MetadataCallback(MetadataChangedInternal));
}
static extern int FLAC__stream_encoder_init_stream(IntPtr context, WriteCallback write, SeekCallback seek, TellCallback tell, MetadataCallback metadata, IntPtr userData);
static extern int FLAC__stream_decoder_init_file(IntPtr context, string filename, WriteCallback write, MetadataCallback metadata, ErrorCallback error, IntPtr userData);
public static void DetectBarcode(Color32[] frame, int width, int height, IDispatch dispatch, MetadataCallback <IMetadata> callback)
{
if (frame == null || dispatch == null || callback == null)
{
return;
}
#if ZXING_API
var results = reader.DecodeMultiple(frame, width, height);
dispatch.Dispatch(() => results.ForEach(result => callback(NatCamBarcode(result))));
#endif
}
static extern int FLAC__stream_decoder_init_file(IntPtr context, string filename, WriteCallback write, MetadataCallback metadata, ErrorCallback error, IntPtr userData);
