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00029 #ifndef AAC_ENCODER_H
00030 #define AAC_ENCODER_H
00031
00032 #ifndef __cplusplus
00033 #error This is a C++ include file
00034 #endif
00035
00036
00037
00038
00039 #ifdef HAVE_CONFIG_H
00040 #include "config.h"
00041 #endif
00042
00043 #ifdef HAVE_FAAC_LIB
00044 #include <faac.h>
00045 #else
00046 #error configure with faac
00047 #endif
00048
00049
00050 #include "Ref.h"
00051 #include "Exception.h"
00052 #include "Reporter.h"
00053 #include "AudioEncoder.h"
00054 #include "Sink.h"
00055
00056
00057
00058
00059
00060
00061
00062
00063
00064
00071 class AacEncoder : public AudioEncoder, public virtual Reporter
00072 {
00073 private:
00074
00078 bool faacOpen;;
00079
00083 faacEncHandle encoderHandle;
00084
00088 unsigned long inputSamples;
00089
00093 unsigned long maxOutputBytes;
00094
00098 Ref<Sink> sink;
00099
00106 inline void
00107 init ( Sink * sink ) throw (Exception)
00108 {
00109 this->sink = sink;
00110
00111 if ( getInBitsPerSample() != 16 && getInBitsPerSample() != 8 ) {
00112 throw Exception( __FILE__, __LINE__,
00113 "specified bits per sample not supported",
00114 getInBitsPerSample() );
00115 }
00116
00117 if ( getInChannel() != 1 && getInChannel() != 2 ) {
00118 throw Exception( __FILE__, __LINE__,
00119 "unsupported number of input channels for the encoder",
00120 getInChannel() );
00121 }
00122 if ( getOutChannel() != 1 && getOutChannel() != 2 ) {
00123 throw Exception( __FILE__, __LINE__,
00124 "unsupported number of output channels for the encoder",
00125 getOutChannel() );
00126 }
00127 if ( getInChannel() != getOutChannel() ) {
00128 throw Exception( __FILE__, __LINE__,
00129 "input channels and output channels do not match");
00130 }
00131 }
00132
00138 inline void
00139 strip ( void ) throw ( Exception )
00140 {
00141 }
00142
00143
00144 protected:
00145
00151 inline
00152 AacEncoder ( void ) throw ( Exception )
00153 {
00154 throw Exception( __FILE__, __LINE__);
00155 }
00156
00157
00158 public:
00159
00177 inline
00178 AacEncoder ( Sink * sink,
00179 unsigned int inSampleRate,
00180 unsigned int inBitsPerSample,
00181 unsigned int inChannel,
00182 bool inBigEndian,
00183 BitrateMode outBitrateMode,
00184 unsigned int outBitrate,
00185 double outQuality,
00186 unsigned int outSampleRate = 0,
00187 unsigned int outChannel = 0)
00188 throw ( Exception )
00189
00190 : AudioEncoder ( inSampleRate,
00191 inBitsPerSample,
00192 inChannel,
00193 inBigEndian,
00194 outBitrateMode,
00195 outBitrate,
00196 outQuality,
00197 outSampleRate,
00198 outChannel )
00199 {
00200 init( sink);
00201 }
00202
00218 inline
00219 AacEncoder ( Sink * sink,
00220 const AudioSource * as,
00221 BitrateMode outBitrateMode,
00222 unsigned int outBitrate,
00223 double outQuality,
00224 unsigned int outSampleRate = 0,
00225 unsigned int outChannel = 0)
00226 throw ( Exception )
00227
00228 : AudioEncoder ( as,
00229 outBitrateMode,
00230 outBitrate,
00231 outQuality,
00232 outSampleRate,
00233 outChannel )
00234 {
00235 init( sink);
00236 }
00237
00243 inline
00244 AacEncoder ( const AacEncoder & encoder )
00245 throw ( Exception )
00246 : AudioEncoder( encoder )
00247 {
00248 init( encoder.sink.get());
00249 }
00250
00251
00257 inline virtual
00258 ~AacEncoder ( void ) throw ( Exception )
00259 {
00260 if ( isOpen() ) {
00261 close();
00262 }
00263 strip();
00264 }
00265
00273 inline virtual AacEncoder &
00274 operator= ( const AacEncoder & encoder ) throw ( Exception )
00275 {
00276 if ( this != &encoder ) {
00277 strip();
00278 AudioEncoder::operator=( encoder);
00279 init( encoder.sink.get());
00280 }
00281
00282 return *this;
00283 }
00284
00290 inline const char *
00291 getFaacVersion( void )
00292 {
00293 char * id;
00294 char * copyright;
00295
00296 faacEncGetVersion(&id, ©right);
00297 return id;
00298 }
00299
00305 inline virtual bool
00306 isRunning ( void ) const throw ()
00307 {
00308 return isOpen();
00309 }
00310
00318 inline virtual bool
00319 start ( void ) throw ( Exception )
00320 {
00321 return open();
00322 }
00323
00329 inline virtual void
00330 stop ( void ) throw ( Exception )
00331 {
00332 return close();
00333 }
00334
00341 virtual bool
00342 open ( void ) throw ( Exception );
00343
00349 inline virtual bool
00350 isOpen ( void ) const throw ()
00351 {
00352 return faacOpen;
00353 }
00354
00364 inline virtual bool
00365 canWrite ( unsigned int sec,
00366 unsigned int usec ) throw ( Exception )
00367 {
00368 if ( !isOpen() ) {
00369 return false;
00370 }
00371
00372 return true;
00373 }
00374
00386 virtual unsigned int
00387 write ( const void * buf,
00388 unsigned int len ) throw ( Exception );
00389
00396 virtual void
00397 flush ( void ) throw ( Exception );
00398
00404 virtual void
00405 close ( void ) throw ( Exception );
00406 };
00407
00408
00409
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00411
00412
00413
00414
00415 #endif
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