private void Initialize(IRecognizerInternal recognizer, ISpRecoResult recoResult, byte[] sapiResultBlob, int maxAlternates)
{
_recognizer = recognizer;
_maxAlternates = maxAlternates;
try
{
_sapiRecoResult = (recoResult as ISpRecoResult2);
}
catch (COMException)
{
_sapiRecoResult = null;
}
GCHandle gCHandle = GCHandle.Alloc(sapiResultBlob, GCHandleType.Pinned);
try
{
IntPtr intPtr = gCHandle.AddrOfPinnedObject();
int num = Marshal.ReadInt32(intPtr, 4);
if (num == Marshal.SizeOf(typeof(SPRESULTHEADER_Sapi51)))
{
SPRESULTHEADER_Sapi51 source = (SPRESULTHEADER_Sapi51)Marshal.PtrToStructure(intPtr, typeof(SPRESULTHEADER_Sapi51));
_header = new SPRESULTHEADER(source);
_isSapi53Header = false;
}
else
{
_header = (SPRESULTHEADER)Marshal.PtrToStructure(intPtr, typeof(SPRESULTHEADER));
_isSapi53Header = true;
}
_header.Validate();
IntPtr phraseBuffer = new IntPtr((long)intPtr + (int)_header.ulPhraseOffset);
SPSERIALIZEDPHRASE phraseHeader = RecognizedPhrase.GetPhraseHeader(phraseBuffer, _header.ulPhraseDataSize, _isSapi53Header);
bool hasIPAPronunciation = (_header.fAlphabet & 1) != 0;
InitializeFromSerializedBuffer(this, phraseHeader, phraseBuffer, (int)_header.ulPhraseDataSize, _isSapi53Header, hasIPAPronunciation);
if (recoResult != null)
{
ExtractDictationAlternates(recoResult, maxAlternates);
recoResult.Discard(255u);
}
}
finally
{
gCHandle.Free();
}
_sapiAudioBlob = new byte[_header.ulRetainedDataSize];
Array.Copy(sapiResultBlob, (int)_header.ulRetainedOffset, _sapiAudioBlob, 0, (int)_header.ulRetainedDataSize);
_sapiAlternatesBlob = new byte[_header.ulPhraseAltDataSize];
Array.Copy(sapiResultBlob, (int)_header.ulPhraseAltOffset, _sapiAlternatesBlob, 0, (int)_header.ulPhraseAltDataSize);
}
private void Initialize(IRecognizerInternal recognizer, ISpRecoResult recoResult, byte[] sapiResultBlob, int maxAlternates)
{
// record parameters
_recognizer = recognizer;
_maxAlternates = maxAlternates;
try
{
_sapiRecoResult = recoResult as ISpRecoResult2;
}
catch (COMException)
{
_sapiRecoResult = null;
}
GCHandle gc = GCHandle.Alloc(sapiResultBlob, GCHandleType.Pinned);
try
{
IntPtr buffer = gc.AddrOfPinnedObject();
int headerSize = Marshal.ReadInt32(buffer, 4); // Read header size directly from buffer - 4 is the offset of cbHeaderSize.
if (headerSize == Marshal.SizeOf <SPRESULTHEADER_Sapi51>()) // SAPI 5.1 size
{
SPRESULTHEADER_Sapi51 legacyHeader = Marshal.PtrToStructure <SPRESULTHEADER_Sapi51>(buffer);
_header = new SPRESULTHEADER(legacyHeader);
_isSapi53Header = false;
}
else
{
_header = Marshal.PtrToStructure <SPRESULTHEADER>(buffer);
_isSapi53Header = true;
}
// Validate the header fields
_header.Validate();
// initialize the parent to be this result - this is needed for the homophones
IntPtr phraseBuffer = new((long)buffer + (int)_header.ulPhraseOffset);
SPSERIALIZEDPHRASE serializedPhrase = RecognizedPhrase.GetPhraseHeader(phraseBuffer, _header.ulPhraseDataSize, _isSapi53Header);
// Get the alphabet of the main phrase, which should be the same as the current alphabet selected by us (applications).
bool hasIPAPronunciation = (_header.fAlphabet & (uint)SPRESULTALPHABET.SPRA_APP_UPS) != 0;
InitializeFromSerializedBuffer(this, serializedPhrase, phraseBuffer, (int)_header.ulPhraseDataSize, _isSapi53Header, hasIPAPronunciation);
if (recoResult != null)
{
ExtractDictationAlternates(recoResult, maxAlternates);
// Since we took ownership of this unmanaged object we can discard information that don't need.
recoResult.Discard(SapiConstants.SPDF_ALL);
}
}
finally
{
gc.Free();
}
// save the sapi blobs splitting it in the relevant bits
// audio
_sapiAudioBlob = new byte[(int)_header.ulRetainedDataSize];
Array.Copy(sapiResultBlob, (int)_header.ulRetainedOffset, _sapiAudioBlob, 0, (int)_header.ulRetainedDataSize);
// alternates
_sapiAlternatesBlob = new byte[(int)_header.ulPhraseAltDataSize];
Array.Copy(sapiResultBlob, (int)_header.ulPhraseAltOffset, _sapiAlternatesBlob, 0, (int)_header.ulPhraseAltDataSize);
}
internal RecognitionResult(IRecognizerInternal recognizer, ISpRecoResult recoResult, byte[] sapiResultBlob, int maxAlternates)
{
Initialize(recognizer, recoResult, sapiResultBlob, maxAlternates);
}
