C++ speex_encoder_ctl函数代码示例

extern "C" JNIEXPORT jint JNICALL Java_com_haitou_xiaoyoupai_imservice_support_audio_Speex_open(
    JNIEnv *env, jobject obj, jint compression) {
    int tmp = 0;
    if (codec_open++ != 0)
        return (jint) 0;

    speex_bits_init(&ebits);
    speex_bits_init(&dbits);

    enc_state = speex_encoder_init(&speex_nb_mode);
    dec_state = speex_decoder_init(&speex_nb_mode);

    tmp = compression;
    speex_encoder_ctl(enc_state, SPEEX_SET_QUALITY, &tmp);
    speex_encoder_ctl(enc_state, SPEEX_GET_FRAME_SIZE, &enc_frame_size);
    speex_decoder_ctl(dec_state, SPEEX_GET_FRAME_SIZE, &dec_frame_size);

    SpeexPreprocessState * m_st;
    m_st = speex_preprocess_state_init(enc_frame_size, 8000);
    int denoise = 1;
    int noiseSuppress = -25;
    speex_preprocess_ctl(m_st, SPEEX_PREPROCESS_SET_DENOISE, &denoise);
    speex_preprocess_ctl(m_st, SPEEX_PREPROCESS_SET_NOISE_SUPPRESS,
                         &noiseSuppress);

    return (jint) 0;
}

int AudioInput::getMaxBandwidth() {
	int audiorate;

	void *es;
	float f = static_cast<float>(g.s.iQuality);
	es = speex_encoder_init(speex_lib_get_mode(SPEEX_MODEID_WB));
	speex_encoder_ctl(es,SPEEX_SET_VBR_QUALITY, &f);
	speex_encoder_ctl(es,SPEEX_GET_BITRATE,&audiorate);
	speex_encoder_destroy(es);

	audiorate /= 400/g.s.iFramesPerPacket;

	// Overhead
	audiorate += 20 + 8 + 4 + 3 + 1 + 2;

	if (g.s.bTransmitPosition)
		audiorate += 12;

	if (NetworkConfig::TcpModeEnabled())
		audiorate += 12;

	audiorate = (audiorate * 50) / g.s.iFramesPerPacket;

	return audiorate;
}

void init_speex_encoder() {
    if (!gEncoderState) {
        gEncoderState = speex_encoder_init(&speex_nb_mode);
	int quality = 3; // 8000 bps
        speex_encoder_ctl(gEncoderState, SPEEX_SET_QUALITY, &quality);
	int complexity = 4; // net play is demanding, ok?
        speex_encoder_ctl(gEncoderState, SPEEX_SET_COMPLEXITY, &complexity);
        int tmp = kNetworkAudioSampleRate;
        speex_encoder_ctl(gEncoderState, SPEEX_SET_SAMPLING_RATE, &tmp);
        speex_bits_init(&gEncoderBits);

	// set up the preprocessor
	int frame_size;
	speex_encoder_ctl(gEncoderState, SPEEX_GET_FRAME_SIZE, &frame_size);
	gPreprocessState = speex_preprocess_state_init(frame_size, kNetworkAudioSampleRate);
	// turn on AGC and denoise
	tmp = 1;
	speex_preprocess_ctl(gPreprocessState, SPEEX_PREPROCESS_SET_DENOISE, &tmp);
	tmp = 1;
	speex_preprocess_ctl(gPreprocessState, SPEEX_PREPROCESS_SET_AGC, &tmp);
	
	float agc_level = 32768.0 * 0.7;
	speex_preprocess_ctl(gPreprocessState, SPEEX_PREPROCESS_SET_AGC_LEVEL, &agc_level);
    }
    
}

/*
 * Open codec.
 */
static pj_status_t spx_codec_open( pjmedia_codec *codec, 
				   pjmedia_codec_param *attr )
{
    struct spx_private *spx;
    int id, tmp;

    spx = (struct spx_private*) codec->codec_data;
    id = spx->param_id;

    /* 
     * Create and initialize encoder. 
     */
    spx->enc = speex_encoder_init(spx_factory.speex_param[id].mode);
    if (!spx->enc)
	return PJMEDIA_CODEC_EFAILED;
    speex_bits_init(&spx->enc_bits);

    /* Set the quality*/
    if (spx_factory.speex_param[id].quality != -1) {
	speex_encoder_ctl(spx->enc, SPEEX_SET_QUALITY, 
			  &spx_factory.speex_param[id].quality);
    }

    /* Sampling rate. */
    tmp = attr->info.clock_rate;
    speex_encoder_ctl(spx->enc, SPEEX_SET_SAMPLING_RATE, 
		      &spx_factory.speex_param[id].clock_rate);

    /* VAD */
    tmp = (attr->setting.vad != 0);
    speex_encoder_ctl(spx->enc, SPEEX_SET_VAD, &tmp);
    speex_encoder_ctl(spx->enc, SPEEX_SET_DTX, &tmp);

    /* Complexity */
    if (spx_factory.speex_param[id].complexity != -1) {
	speex_encoder_ctl(spx->enc, SPEEX_SET_COMPLEXITY, 
			  &spx_factory.speex_param[id].complexity);
    }

    /* 
     * Create and initialize decoder. 
     */
    spx->dec = speex_decoder_init(spx_factory.speex_param[id].mode);
    if (!spx->dec) {
	spx_codec_close(codec);
	return PJMEDIA_CODEC_EFAILED;
    }
    speex_bits_init(&spx->dec_bits);

    /* Sampling rate. */
    speex_decoder_ctl(spx->dec, SPEEX_SET_SAMPLING_RATE, 
		      &spx_factory.speex_param[id].clock_rate);

    /* PENH */
    tmp = attr->setting.penh;
    speex_decoder_ctl(spx->dec, SPEEX_SET_ENH, &tmp);

    return PJ_SUCCESS;
}

	pcm2speex_int()
	{
		state = speex_encoder_init(&speex_nb_mode); 
		int quality = QUALITY ; 
		speex_encoder_ctl(state, SPEEX_SET_QUALITY, &quality); 
		speex_bits_init(&bits);

		speex_encoder_ctl(state, SPEEX_GET_FRAME_SIZE, &frame_size);
		in  = new short[ frame_size ];
	}

JNIEXPORT void JNICALL FUNCSPEEX(initEncode)(JNIEnv* env, jobject obj, jint compression) {
	speex_bits_init(&ebits);
	enc_state = speex_encoder_init(speex_lib_get_mode(SPEEX_MODEID_NB));
	speex_encoder_ctl(enc_state, SPEEX_SET_QUALITY, &compression);
	speex_encoder_ctl(enc_state, SPEEX_GET_FRAME_SIZE, &enc_frame_size);
	int tmp = 1;
	speex_encoder_ctl(enc_state, SPEEX_SET_COMPLEXITY, &tmp);
	tmp = 0;
	speex_encoder_ctl(enc_state, SPEEX_SET_VBR, &tmp);
}

bool NetworkSoundRecorder::onStart()
{
	int sampleRate = getSampleRate();
	speex_encoder_ctl(m_speexState, SPEEX_SET_SAMPLING_RATE, &sampleRate);
	speex_encoder_ctl(m_speexState, SPEEX_GET_FRAME_SIZE, &m_frameSize);

	m_samples.clear();

	return true;
}

void Transmitter::setup(int srate, int quality, int abr, int vbr, float vbr_quality, int complexity, int vad, int dtx, int txstop)
{
	if (recording)
	{
		recorder->end();
		stop();
	}

	SpeexMode *mode = NULL;
	
	switch (srate)
	{
		case 32000:
			mode = (SpeexMode *) &speex_uwb_mode;
			speexmode = DRTA_INFO_MODE_ULTRAWIDE;
			break;
		case 16000:
			mode = (SpeexMode *) &speex_wb_mode;
			speexmode = DRTA_INFO_MODE_WIDE;
			break;
		case 8000:
			mode = (SpeexMode *) &speex_nb_mode;
			speexmode = DRTA_INFO_MODE_NARROW;
			break;
	}
	
	if (state)
		speex_encoder_destroy(state);
	
	state = speex_encoder_init(mode);

	speex_encoder_ctl(state, SPEEX_SET_SAMPLING_RATE, &srate);
	speex_encoder_ctl(state, SPEEX_SET_COMPLEXITY, &complexity);
	if (vbr)
	{
		speex_encoder_ctl(state, SPEEX_SET_VBR, &vbr);
		speex_encoder_ctl(state, SPEEX_SET_VBR_QUALITY, &vbr_quality);
	}
	else
	{
		speex_encoder_ctl(state, SPEEX_SET_QUALITY, &quality);
		speex_encoder_ctl(state, SPEEX_SET_VAD, &vad);
	}
	if (abr)
		speex_encoder_ctl(state, SPEEX_SET_ABR, &abr);
	speex_encoder_ctl(state, SPEEX_SET_DTX, &dtx);
	speex_encoder_ctl(state, SPEEX_GET_FRAME_SIZE, &frame_size);
	
	stoptx = (int) ((srate / frame_size)*txstop);
	
	speex_bits_init(&bits);
	
	rate = srate;

	if (recording)
	{
		initRecorder();
		go();
	}
}

void Phone::setup(int mode, int quality, int abr, int vbr, float vbr_quality, int complexity, int vad, int dtx, int txstop, int th, int ring_vol)
{
	bool restart = recording;
	if (restart)
		stopRecorder();

	if (enc_state)
		speex_encoder_destroy(enc_state);

	SpeexMode *spmode = NULL;
	
	switch (mode)
	{
		case IHU_NARROW:
			spmode = (SpeexMode *) &speex_nb_mode;
			break;
		case IHU_WIDE:
			spmode = (SpeexMode *) &speex_wb_mode;
			break;
		case IHU_ULTRAWIDE:
			spmode = (SpeexMode *) &speex_uwb_mode;
			break;
	}
	
	enc_state = speex_encoder_init(spmode);

	speex_encoder_ctl(enc_state, SPEEX_SET_COMPLEXITY, &complexity);
	if (vbr)
	{
		speex_encoder_ctl(enc_state, SPEEX_SET_VBR, &vbr);
		speex_encoder_ctl(enc_state, SPEEX_SET_VBR_QUALITY, &vbr_quality);
	}
	else
	{
		speex_encoder_ctl(enc_state, SPEEX_SET_QUALITY, &quality);
		speex_encoder_ctl(enc_state, SPEEX_SET_VAD, &vad);
	}
	if (abr)
		speex_encoder_ctl(enc_state, SPEEX_SET_ABR, &abr);
	speex_encoder_ctl(enc_state, SPEEX_SET_DTX, &dtx);
	
	speex_encoder_ctl(enc_state, SPEEX_GET_SAMPLING_RATE, &rate);
	speex_encoder_ctl(enc_state, SPEEX_GET_FRAME_SIZE, &frame_size);

	stoptx = txstop;
	
	speex_bits_init(&enc_bits);
	
	ring_vol = -ring_vol + 1;
	float vol = 0.0;
	if (ring_vol <= 0)
		vol = powf(VOL_FACTOR, (float) (ring_vol));
	for (int i=0; i<SIZE_RING_32; i++)
		ringBuffer[i] = ((float) ring_32[i]) * vol;

	setThreshold(th);

	if (restart)
		startRecorder();
}

GVBool gviSpeexInitialize(int quality, GVRate sampleRate)
{
	int rate;
	int bitsPerFrame;
	int samplesPerSecond;
	
	// we shouldn't already be initialized
	if(gviSpeexInitialized)
		return GVFalse;

	// create a new encoder state
	if (sampleRate == GVRate_8KHz)
		gviSpeexEncoderState = speex_encoder_init(&speex_nb_mode);
	else if (sampleRate == GVRate_16KHz)
		gviSpeexEncoderState = speex_encoder_init(&speex_wb_mode);
	else
		return GVFalse;

	if(!gviSpeexEncoderState)
		return GVFalse;

	// set the sampling rate
	samplesPerSecond = sampleRate;
	speex_encoder_ctl(gviSpeexEncoderState, SPEEX_SET_SAMPLING_RATE, &samplesPerSecond);

	// Get the samples per frame setting.
	speex_encoder_ctl(gviSpeexEncoderState, SPEEX_GET_FRAME_SIZE, &gviSpeexSamplesPerFrame);

	// set the quality
	speex_encoder_ctl(gviSpeexEncoderState, SPEEX_SET_QUALITY, &quality);

	// initialize the bits struct
	speex_bits_init(&gviSpeexBits);

	// get the bitrate
	speex_encoder_ctl(gviSpeexEncoderState, SPEEX_GET_BITRATE, &rate);

	// convert to bits per frame
	bitsPerFrame = (rate / (sampleRate / gviSpeexSamplesPerFrame));

	// convert to bytes per frame and store, round up to allocate more space than needed.
	gviSpeexEncodedFrameSize = (bitsPerFrame / 8);
	if (bitsPerFrame % 8)
		gviSpeexEncodedFrameSize++;

	// create our encoding and decoding buffer.
	gviSpeexBuffer = (float *)gsimalloc(gviSpeexSamplesPerFrame * sizeof(float));

	// we're now initialized
	gviSpeexInitialized = GVTrue;

	return GVTrue;
}

void createEncoder(void)
{
	signed int tmp = 0;
	speex_bits_init(&inbits);
	pEnc = speex_encoder_init(&speex_nb_mode);
	//tmp=0;
	//speex_encoder_ctl(pEnc, SPEEX_SET_VBR, &tmp);
	tmp=4;
	speex_encoder_ctl(pEnc, SPEEX_SET_QUALITY, &tmp);
	tmp=2;
	speex_encoder_ctl(pEnc, SPEEX_SET_COMPLEXITY, &tmp);
}

void RakVoice::SetEncoderParameter(void* enc_state, int vartype, int val)
{
	if (enc_state){ 
		// Set parameter for just one encoder
		int ret = speex_encoder_ctl(enc_state, vartype, &val);
		RakAssert(ret==0);		
	} else {
		// Set parameter for all encoders
		for (unsigned int index=0; index < voiceChannels.Size(); index++)
		{
			int ret = speex_encoder_ctl(voiceChannels[index]->enc_state, vartype, &val);
			RakAssert(ret==0);
		}
	}
}

static int encode_speex(int16_t * input_frame, uint8_t nbframes, char * output, int bitrate) {
	int i, bytesToWrite, nbBytes;
  SpeexBits bits;
  void * state;
  long long total;

  speex_bits_init(&bits);
  state = speex_encoder_init(&speex_nb_mode);
  speex_encoder_ctl(state, SPEEX_SET_QUALITY, &bitrate);
  speex_bits_reset(&bits);
  
  total = 0;
  for(i=0;i<5*160;i++) {
    total += input_frame[i];
  }
  total /= (5*160);
  if(abs(total) < 10)
    return 0;

  for(i=0;i<5;i++) {
	  speex_encode_int(state, input_frame + (i*160), &bits);
  }

	bytesToWrite = speex_bits_nbytes(&bits);
  nbBytes = speex_bits_write(&bits, output, bytesToWrite);
  speex_bits_destroy(&bits);
  speex_decoder_destroy(state);
	return nbBytes;
}

int speex_std_high_mode_request_handler(SpeexBits *bits, void *state, void *data)
{
   int m;
   m = speex_bits_unpack_unsigned(bits, 4);
   speex_encoder_ctl(data, SPEEX_SET_HIGH_MODE, &m);
   return 0;
}

int  spx_encode_init(){

    fp_speex_send = fopen("speex_send.spx" ,"w+");
    if(fp_speex_send == NULL){
         printf("open sdcard/fp_speex_send.spx file failed");
    }

    speex_encode_union_t * speex_encode_u = (speex_encode_union_t *)malloc(sizeof(speex_encode_union_t));
    if(speex_encode_u == NULL){
        printf("speex_encode_union malloc failed ...\n");
        exit(1);
    }

        /*Create a new encoder state in narrowband mode*/
   speex_encode_u->state = speex_encoder_init(&speex_nb_mode);

    /*Set the quality to 8 (15 kbps)*/
    int tmp = 8;
    speex_encoder_ctl(speex_encode_u->state, SPEEX_SET_QUALITY, &tmp);

    /*Initialization of the structure that holds the bits*/
    speex_bits_init(&speex_encode_u->bits);

    return (int )speex_encode_u;
}