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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=2 sw=2 sts=2 et cindent: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef mozilla_dom_PocketSphinxRecognitionService_h
#define mozilla_dom_PocketSphinxRecognitionService_h
#include "nsCOMPtr.h"
#include "nsTArray.h"
#include "nsIObserver.h"
#include "nsISpeechRecognitionService.h"
#include "speex/speex_resampler.h"
extern "C" {
#include <pocketsphinx/pocketsphinx.h>
#include <sphinxbase/sphinx_config.h>
}
#define NS_POCKETSPHINX_SPEECH_RECOGNITION_SERVICE_CID \
{ \
0x0ff5ce56, 0x5b09, 0x4db8, { \
0xad, 0xc6, 0x82, 0x66, 0xaf, 0x95, 0xf8, 0x64 \
} \
};
namespace mozilla {
/**
* Pocketsphix implementation of the nsISpeechRecognitionService interface
*/
class PocketSphinxSpeechRecognitionService : public nsISpeechRecognitionService,
public nsIObserver
{
public:
// Add XPCOM glue code
NS_DECL_ISUPPORTS
NS_DECL_NSISPEECHRECOGNITIONSERVICE
// Add nsIObserver code
NS_DECL_NSIOBSERVER
/**
* Default constructs a PocketSphinxSpeechRecognitionService loading default
* files
*/
PocketSphinxSpeechRecognitionService();
private:
/**
* Private destructor to prevent bypassing of reference counting
*/
virtual ~PocketSphinxSpeechRecognitionService();
/** The associated SpeechRecognition */
WeakPtr<dom::SpeechRecognition> mRecognition;
/**
* Builds a mock SpeechRecognitionResultList
*/
dom::SpeechRecognitionResultList* BuildMockResultList();
/** Speex state */
SpeexResamplerState* mSpeexState;
/** Pocksphix decoder */
ps_decoder_t* mPSHandle;
/** Sphinxbase parsed command line arguments */
cmd_ln_t* mPSConfig;
/** Flag to verify if decoder was created */
bool ISDecoderCreated;
/** Flag to verify if grammar was compiled */
bool ISGrammarCompiled;
/** Audio data */
nsTArray<int16_t> mAudioVector;
};
} // namespace mozilla
#endif
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