MediaFileReader.h

00001 /*---------------------------------------------------------------------------*
00002  *  MediaFileReader.h                                                        *
00003  *                                                                           *
00004  *  Copyright 2007 Nuance Communciations, Inc.                               *
00005  *                                                                           *
00006  *  Licensed under the Apache License, Version 2.0 (the 'License');          *
00007  *  you may not use this file except in compliance with the License.         *
00008  *                                                                           *
00009  *  You may obtain a copy of the License at                                  *
00010  *      http://www.apache.org/licenses/LICENSE-2.0                           *
00011  *                                                                           *
00012  *  Unless required by applicable law or agreed to in writing, software      *
00013  *  distributed under the License is distributed on an 'AS IS' BASIS,        *
00014  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. *
00015  *  See the License for the specific language governing permissions and      *
00016  *  limitations under the License.                                           *
00017  *                                                                           *
00018  *---------------------------------------------------------------------------*/
00019 
00020 #ifndef __UAPI__MEDIAFILEREADER_
00021 #define __UAPI__MEDIAFILEREADER_
00022 
00023 #include "exports.h"
00024 #include "AudioSource.h"
00025 #include "types.h"
00026 #include "Codec.h"
00027 #include "SmartProxy.h"
00028 
00029 namespace android
00030 {
00031   namespace speech
00032   {
00033     namespace recognition
00034     {
00035       class AudioSourceListenerProxy;
00036       class MediaFileReaderProxy;
00037     }
00038   }
00039 }
00040 
00041 
00042 namespace android
00043 {
00044   namespace speech
00045   {
00046     namespace recognition
00047     {
00051       class MediaFileReader: public AudioSource
00052       {
00053         public:
00054           enum ReadingMode
00055           {
00059             REAL_TIME,
00060             
00064             ALL_AT_ONCE
00065           };
00066           
00077           UAPI_EXPORT static MediaFileReaderProxy create(const char* pszFileName,
00078               AudioSourceListenerProxy& listener,
00079               ReturnCode::Type& returnCode);
00080               
00087           virtual void setReadingMode(ReadingMode mode, ReturnCode::Type& returnCode) = 0;
00088         protected:
00092           MediaFileReader();
00096           virtual ~MediaFileReader();
00097           
00098           friend class MediaFileReaderProxy;
00099       };
00100       
00101       /*
00102       * @see android::speech::recognition::SmartProxy
00103       */
00104       DECLARE_SMARTPROXY(UAPI_EXPORT, MediaFileReaderProxy, AudioSourceProxy, MediaFileReader)
00105     }
00106   }
00107 }
00108 
00109 #endif

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