JNIEXPORT void JNICALL FUNCSPEEX(initDecode)(JNIEnv* env, jobject obj) {
speex_bits_init(&dbits);
dec_state = speex_decoder_init(speex_lib_get_mode(SPEEX_MODEID_NB));
speex_decoder_ctl(dec_state, SPEEX_GET_FRAME_SIZE, &dec_frame_size);
int tmp = 1;
speex_decoder_ctl(dec_state, SPEEX_SET_ENH, &tmp);
}
void *ph_speex_dec_init(SpeexMode *mode)
{
struct speexdec *speex;
int tmp;
speex = (struct speexdec *)calloc(sizeof(struct speexdec), 1);
if (!speex)
{
return 0;
}
speex->st = speex_decoder_init(mode);
tmp=0;
speex_decoder_ctl(speex->st, SPEEX_SET_VBR, &tmp);
tmp=8;
speex_decoder_ctl(speex->st, SPEEX_SET_QUALITY, &tmp);
tmp=1;
speex_decoder_ctl(speex->st, SPEEX_SET_COMPLEXITY, &tmp);
speex_bits_init(&speex->bits);
return speex;
}
static av_cold int libspeex_decode_init(AVCodecContext *avctx)
{
LibSpeexContext *s = avctx->priv_data;
const SpeexMode *mode;
// defaults in the case of a missing header
if (avctx->sample_rate <= 8000)
mode = &speex_nb_mode;
else if (avctx->sample_rate <= 16000)
mode = &speex_wb_mode;
else
mode = &speex_uwb_mode;
if (avctx->extradata_size >= 80)
s->header = speex_packet_to_header(avctx->extradata, avctx->extradata_size);
avctx->sample_fmt = AV_SAMPLE_FMT_S16;
if (s->header) {
avctx->sample_rate = s->header->rate;
avctx->channels = s->header->nb_channels;
s->frame_size = s->header->frame_size;
mode = speex_lib_get_mode(s->header->mode);
if (!mode) {
av_log(avctx, AV_LOG_ERROR, "Unknown Speex mode %d", s->header->mode);
return AVERROR_INVALIDDATA;
}
} else
av_log(avctx, AV_LOG_INFO, "Missing Speex header, assuming defaults.\n");
if (avctx->channels > 2) {
av_log(avctx, AV_LOG_ERROR, "Only stereo and mono are supported.\n");
return AVERROR(EINVAL);
}
speex_bits_init(&s->bits);
s->dec_state = speex_decoder_init(mode);
if (!s->dec_state) {
av_log(avctx, AV_LOG_ERROR, "Error initializing libspeex decoder.\n");
return -1;
}
if (!s->header) {
speex_decoder_ctl(s->dec_state, SPEEX_GET_FRAME_SIZE, &s->frame_size);
}
if (avctx->channels == 2) {
SpeexCallback callback;
callback.callback_id = SPEEX_INBAND_STEREO;
callback.func = speex_std_stereo_request_handler;
callback.data = &s->stereo;
s->stereo = (SpeexStereoState)SPEEX_STEREO_STATE_INIT;
speex_decoder_ctl(s->dec_state, SPEEX_SET_HANDLER, &callback);
}
avcodec_get_frame_defaults(&s->frame);
avctx->coded_frame = &s->frame;
return 0;
}
/*
* 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;
}
void init_speex_decoder() {
if (gDecoderState == NULL) {
gDecoderState = speex_decoder_init(&speex_nb_mode);
int tmp = 1;
speex_decoder_ctl(gDecoderState, SPEEX_SET_ENH, &tmp);
tmp = kNetworkAudioSampleRate;
speex_decoder_ctl(gDecoderState, SPEEX_SET_SAMPLING_RATE, &tmp);
speex_bits_init(&gDecoderBits);
}
}
static void *process_header (struct spx_data *data)
{
void *st;
const SpeexMode *mode;
int modeID;
SpeexCallback callback;
int enhance = ENHANCE_AUDIO;
data->header = speex_packet_to_header ((char*)data->op.packet,
data->op.bytes);
if (!data->header) {
decoder_error (&data->error, ERROR_FATAL, 0,
"Can't open speex file: can't read header");
return NULL;
}
if (data->header->mode >= SPEEX_NB_MODES) {
decoder_error (&data->error, ERROR_FATAL, 0,
"Can't open speex file: Mode number %"PRId32
" does not exist in this version",
data->header->mode);
return NULL;
}
modeID = data->header->mode;
mode = speex_mode_list[modeID];
if (mode->bitstream_version < data->header->mode_bitstream_version) {
decoder_error (&data->error, ERROR_FATAL, 0,
"Can't open speex file: The file was encoded "
"with a newer version of Speex.");
return NULL;
}
if (mode->bitstream_version > data->header->mode_bitstream_version) {
decoder_error (&data->error, ERROR_FATAL, 0,
"Can't open speex file: The file was encoded "
"with an older version of Speex.");
return NULL;
}
st = speex_decoder_init (mode);
speex_decoder_ctl(st, SPEEX_SET_ENH, &enhance);
speex_decoder_ctl(st, SPEEX_GET_FRAME_SIZE, &data->frame_size);
callback.callback_id = SPEEX_INBAND_STEREO;
callback.func = speex_std_stereo_request_handler;
callback.data = &data->stereo;
speex_decoder_ctl(st, SPEEX_SET_HANDLER, &callback);
speex_decoder_ctl(st, SPEEX_SET_SAMPLING_RATE, &data->header->rate);
return st;
}
static int speex_decoder_construct(struct ast_trans_pvt *pvt, const SpeexMode *profile)
{
struct speex_coder_pvt *tmp = pvt->pvt;
if (!(tmp->speex = speex_decoder_init(profile)))
return -1;
speex_bits_init(&tmp->bits);
speex_decoder_ctl(tmp->speex, SPEEX_GET_FRAME_SIZE, &tmp->framesize);
if (enhancement)
speex_decoder_ctl(tmp->speex, SPEEX_SET_ENH, &enhancement);
return 0;
}
static int speextolin_new(struct ast_trans_pvt *pvt)
{
struct speex_coder_pvt *tmp = pvt->pvt;
if (!(tmp->speex = speex_decoder_init(&speex_nb_mode)))
return -1;
speex_bits_init(&tmp->bits);
speex_decoder_ctl(tmp->speex, SPEEX_GET_FRAME_SIZE, &tmp->framesize);
if (enhancement)
speex_decoder_ctl(tmp->speex, SPEEX_SET_ENH, &enhancement);
return 0;
}
int main(int argc, char **argv)
{
char *outFile;
FILE *fout;
/*Holds the audio that will be written to file (16 bits per sample)*/
short out[FRAME_SIZE];
/*Speex handle samples as float, so we need an array of floats*/
float output[FRAME_SIZE];
char cbits[200];
int nbBytes;
/*Holds the state of the decoder*/
void *state;
/*Holds bits so they can be read and written to by the Speex routines*/
SpeexBits bits;
int i, tmp;
/*Create a new decoder state in narrowband mode*/
state = speex_decoder_init(&speex_nb_mode);
/*Set the perceptual enhancement on*/
tmp=1;
speex_decoder_ctl(state, SPEEX_SET_ENH, &tmp);
outFile = argv[1];
fout = fopen(outFile, "w");
/*Initialization of the structure that holds the bits*/
speex_bits_init(&bits);
while (1)
{
/*Read the size encoded by sampleenc, this part will likely be
different in your application*/
fread(&nbBytes, sizeof(int), 1, stdin);
fprintf (stderr, "nbBytes: %d\n", nbBytes);
if (feof(stdin))
break;
/*Read the "packet" encoded by sampleenc*/
fread(cbits, 1, nbBytes, stdin);
/*Copy the data into the bit-stream struct*/
speex_bits_read_from(&bits, cbits, nbBytes);
/*Decode the data*/
speex_decode(state, &bits, output);
/*Copy from float to short (16 bits) for output*/
for (i=0;i<FRAME_SIZE;i++)
out[i]=output[i];
/*Write the decoded audio to file*/
fwrite(out, sizeof(short), FRAME_SIZE, fout);
}
/*Destroy the decoder state*/
speex_decoder_destroy(state);
/*Destroy the bit-stream truct*/
speex_bits_destroy(&bits);
fclose(fout);
return 0;
}
hsBool plSpeex::Init(Mode mode)
{
int enh = 1;
// setup speex
speex_bits_init(fBits);
fBitsInit = true;
if(mode == kNarrowband)
{
fEncoderState = speex_encoder_init(speex_lib_get_mode(SPEEX_MODEID_NB)); // narrowband
fDecoderState = speex_decoder_init(speex_lib_get_mode(SPEEX_MODEID_NB));
}
else if(mode == kWideband)
{
fEncoderState = speex_encoder_init(speex_lib_get_mode(SPEEX_MODEID_WB));
fDecoderState = speex_decoder_init(speex_lib_get_mode(SPEEX_MODEID_WB));
}
speex_encoder_ctl(fEncoderState, SPEEX_GET_FRAME_SIZE, &fFrameSize); // get frame size
speex_encoder_ctl(fEncoderState, SPEEX_SET_COMPLEXITY, &fComplexity); // 3
speex_encoder_ctl(fEncoderState, SPEEX_SET_SAMPLING_RATE, &fSampleRate); // 8 khz
speex_encoder_ctl(fEncoderState, SPEEX_SET_VBR_QUALITY, &fQuality); // 7
speex_encoder_ctl(fEncoderState, SPEEX_SET_VBR, &fVBR); // use variable bit rate
speex_encoder_ctl(fEncoderState, SPEEX_SET_ABR, &fAverageBitrate); // default to 8kb
speex_decoder_ctl(fDecoderState, SPEEX_SET_ENH, &fENH); // perceptual enhancement
fInitialized = true;
return true;
}
AudioDecoderSpeex::AudioDecoderSpeex()
: _speex_dec_state(speex_decoder_init(&speex_wb_mode))
{
if (!_speex_dec_state) {
throw MediaException(_("AudioDecoderSpeex: state initialization failed."));
}
speex_bits_init(&_speex_bits);
speex_decoder_ctl(_speex_dec_state, SPEEX_GET_FRAME_SIZE, &_speex_framesize);
#ifdef RESAMPLING_SPEEX
int err = 0;
_resampler = speex_resampler_init(1, 16000, 44100,
SPEEX_RESAMPLER_QUALITY_DEFAULT, &err);
if (err != RESAMPLER_ERR_SUCCESS) {
throw MediaException(_("AudioDecoderSpeex: initialization failed."));
}
spx_uint32_t num = 0, den = 0;
speex_resampler_get_ratio (_resampler, &num, &den);
assert(num && den);
boost::rational<boost::uint32_t> numsamples(den, num);
numsamples *= _speex_framesize * 2 /* convert to stereo */;
_target_frame_size = boost::rational_cast<boost::uint32_t>(numsamples);
#endif
}
//*****************************************************************************
//
//! Initialize the decoder's state to prepare for decoding new frames.
//!
//! This function will initializes the decoder so that it is prepared to start
//! receiving frames to decode.
//!
//! \return This function returns 0.
//
//*****************************************************************************
int32_t
SpeexDecodeInit(void)
{
int iTemp;
//
// Clear out the flags for this instance.
//
g_sSpeexDecoder.ui32Flags = 0;
//
// Create a new decoder state in narrow band mode.
//
g_sSpeexDecoder.pvState = speex_decoder_init(&speex_nb_mode);
//
// Disable enhanced decoding to reduce processing requirements.
//
iTemp = 0;
speex_decoder_ctl(g_sSpeexDecoder.pvState, SPEEX_SET_ENH, &iTemp);
//
// Initialization of the structure that holds the bits.
//
speex_bits_init(&g_sSpeexDecoder.sBits);
return(0);
}
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;
}
static int decode_audio(sh_audio_t *sh, unsigned char *buf,
int minlen, int maxlen) {
double pts;
context_t *ctx = sh->context;
int len, framelen, framesamples;
char *packet;
int i, err;
speex_decoder_ctl(ctx->dec_context, SPEEX_GET_FRAME_SIZE, &framesamples);
framelen = framesamples * ctx->hdr->nb_channels * sizeof(short);
if (maxlen < ctx->hdr->frames_per_packet * framelen) {
mp_msg(MSGT_DECAUDIO, MSGL_V, "maxlen too small in decode_audio\n");
return -1;
}
len = ds_get_packet_pts(sh->ds, (unsigned char **)&packet, &pts);
if (len <= 0) return -1;
if (sh->pts == MP_NOPTS_VALUE)
sh->pts = 0;
if (pts != MP_NOPTS_VALUE) {
sh->pts = pts;
sh->pts_bytes = 0;
}
speex_bits_read_from(&ctx->bits, packet, len);
i = ctx->hdr->frames_per_packet;
do {
err = speex_decode_int(ctx->dec_context, &ctx->bits, (short *)buf);
if (err == -2)
mp_msg(MSGT_DECAUDIO, MSGL_ERR, "Error decoding file.\n");
if (ctx->hdr->nb_channels == 2)
speex_decode_stereo_int((short *)buf, framesamples, &ctx->stereo);
buf = &buf[framelen];
} while (--i > 0);
sh->pts_bytes += ctx->hdr->frames_per_packet * framelen;
return ctx->hdr->frames_per_packet * framelen;
}
static void dec_preprocess(MSFilter *f){
DecState *s=(DecState*)f->data;
const SpeexMode *mode=NULL;
int modeid;
switch(s->rate){
case 8000:
modeid = SPEEX_MODEID_NB; /* rate = 8000Hz */
break;
case 16000:
modeid = SPEEX_MODEID_WB; /* rate = 16000Hz */
break;
/* should be supported in the future */
case 32000:
modeid = SPEEX_MODEID_UWB; /* rate = 32000Hz */
break;
default:
ms_error("Unsupported rate for speex decoder (back to default rate=8000).");
modeid=SPEEX_MODEID_NB;
}
/* warning: speex_lib_get_mode() is not available on speex<1.1.12 */
mode = speex_lib_get_mode(modeid);
s->state=speex_decoder_init(mode);
speex_mode_query(mode,SPEEX_MODE_FRAME_SIZE,&s->frsz);
if (s->penh==1)
speex_decoder_ctl (s->state, SPEEX_SET_ENH, &s->penh);
s->sample_time=0;
}
int speex_jitter_get(SpeexJitter *jitter, spx_int16_t *out, int *current_timestamp, void** userData)
{
int i;
int jbRet; /* results returned by the JB */
int ourRet; /* result that we will return */
spx_int32_t activity;
char data[2048];
JitterBufferPacket packet;
packet.data = data;
packet.len = 2048; /* AAAAARGH: it took a week to find and add this missing line */
if (jitter->valid_bits)
{
/* Try decoding last received packet */
jbRet = speex_decode_int(jitter->dec, &jitter->current_packet, out);
if (jbRet == 0)
{
jitter_buffer_tick(jitter->packets);
return 1;
} else {
jitter->valid_bits = 0;
}
}
jbRet = jitter_buffer_get(jitter->packets, &packet, jitter->frame_size, NULL);
if (jbRet != JITTER_BUFFER_OK)
{
/* no packet found, so no corresponding user-data */
*userData = NULL;
/* No packet found... extrapolate one */
/*fprintf (stderr, "lost/late frame\n");*/
/*Packet is late or lost*/
speex_decode_int(jitter->dec, NULL, out);
ourRet = 2;
} else {
/* found a packet, so there is corresponding user-data */
*userData = (void*)(packet.user_data);
speex_bits_read_from(&jitter->current_packet, packet.data, packet.len);
/* Decode packet */
jbRet = speex_decode_int(jitter->dec, &jitter->current_packet, out);
if (jbRet == 0) {
ourRet = 0;
jitter->valid_bits = 1;
} else {
/* Error while decoding */
ourRet = 3;
for (i=0;i<jitter->frame_size;i++) out[i]=0;
}
}
speex_decoder_ctl(jitter->dec, SPEEX_GET_ACTIVITY, &activity);
if (activity < jitter->activity_threshold)
jitter_buffer_update_delay(jitter->packets, &packet, NULL);
jitter_buffer_tick(jitter->packets);
return ourRet;
}
void gviSpursSpeexDecoderInitialize(SpursSpeexTaskOutput *spuTaskOut)
{
void * decoder = gviSpursSpeexStateBuffer;
int perceptualEnhancement = 1;
// create a new decoder state
if (gviSpursSpeexTaskDesc.mSamplesPerSecond == GVRate_8KHz)
speex_decoder_init(&speex_nb_mode, decoder);
else if (gviSpursSpeexTaskDesc.mSamplesPerSecond == GVRate_16KHz)
speex_decoder_init(&speex_wb_mode, decoder);
else
{
//spuDebugPrintf("[Speex][SPU] Error: invalid sample rate!\n");
spuTaskOut->mSpeexReturnCode = -1;
}
if(!decoder)
{
//spuDebugPrintf("[Speex][SPU] Error: initializing decoder failed!\n");
spuTaskOut->mSpeexReturnCode = -2;
}
// turn on the perceptual enhancement
speex_decoder_ctl(decoder, SPEEX_SET_ENH, &perceptualEnhancement);
spuTaskOut->mSpeexReturnCode = 0;
}
int speex_std_enh_request_handler(SpeexBits *bits, void *state, void *data)
{
int enh;
enh = speex_bits_unpack_unsigned(bits, 1);
speex_decoder_ctl(data, SPEEX_SET_ENH, &enh);
return 0;
}
uint16 SpeexPlugin::getDecodingSampleRate() const
throw(OperationNotPerfomedException) {
if (!decoder)
throw OperationNotPerfomedException("Decoder not initialized");
spx_int32_t sample;
speex_decoder_ctl(decoder->state, SPEEX_GET_SAMPLING_RATE, &sample);
return sample;
}
static void decoder_config(void *st)
{
int ret;
ret = speex_decoder_ctl(st, SPEEX_SET_ENH, &sconf.enhancement);
if (ret) {
warning("speex: SPEEX_SET_ENH: %d\n", ret);
}
}
speex2pcm_int()
{
state = speex_decoder_init(&speex_nb_mode);
int tmp=1;
speex_decoder_ctl(state, SPEEX_SET_ENH, &tmp);
speex_bits_init(&bits);
speex_encoder_ctl(state, SPEEX_GET_FRAME_SIZE, &frame_size);
out = new short[ frame_size ];
}
EXPORT int speex_decode(void *state, SpeexBits *bits, float *out)
{
int i, ret;
spx_int32_t N;
spx_int16_t short_out[MAX_IN_SAMPLES];
speex_decoder_ctl(state, SPEEX_GET_FRAME_SIZE, &N);
ret = (*((SpeexMode**)state))->dec(state, bits, short_out);
for (i=0;i<N;i++)
out[i] = short_out[i];
return ret;
}
void speex_jitter_init(SpeexJitter *jitter, void *decoder, int sampling_rate)
{
jitter->dec = decoder;
speex_decoder_ctl(decoder, SPEEX_GET_FRAME_SIZE, &jitter->frame_size);
jitter->packets = jitter_buffer_init(jitter->frame_size);
speex_bits_init(&jitter->current_packet);
jitter->valid_bits = 0;
jitter->activity_threshold = 0;
}
static int decode_update(struct audec_state **adsp,
const struct aucodec *ac, const char *fmtp)
{
struct audec_state *st;
int err = 0;
(void)fmtp;
if (!adsp || !ac)
return EINVAL;
if (*adsp)
return 0;
st = mem_zalloc(sizeof(*st), decode_destructor);
if (!st)
return ENOMEM;
st->frame_size = ac->srate * SPEEX_PTIME / 1000;
st->channels = ac->ch;
/* Decoder */
st->dec = speex_decoder_init(resolve_mode(ac->srate));
if (!st->dec) {
err = ENOMEM;
goto out;
}
speex_bits_init(&st->bits);
if (2 == st->channels) {
/* Stereo. */
st->stereo.balance = 1;
st->stereo.e_ratio = .5f;
st->stereo.smooth_left = 1;
st->stereo.smooth_right = 1;
st->callback.callback_id = SPEEX_INBAND_STEREO;
st->callback.func = speex_std_stereo_request_handler;
st->callback.data = &st->stereo;
speex_decoder_ctl(st->dec, SPEEX_SET_HANDLER,
&st->callback);
}
decoder_config(st->dec);
out:
if (err)
mem_deref(st);
else
*adsp = st;
return err;
}
void ms_speex_dec_init_core(MSSpeexDec *obj,const SpeexMode *mode)
{
int pf=1;
obj->speex_state=speex_decoder_init(mode);
speex_bits_init(&obj->bits);
/* enable the perceptual post filter */
speex_decoder_ctl(obj->speex_state,SPEEX_SET_PF, &pf);
speex_mode_query(mode, SPEEX_MODE_FRAME_SIZE, &obj->frame_size);
obj->initialized=1;
}
void CASpeexDecoder::BDCReset()
{
speex_bits_reset(&mSpeexBits);
if (mSpeexDecoderState != NULL)
speex_decoder_ctl(mSpeexDecoderState, SPEEX_RESET_STATE, NULL); //??!
mSpeexFPList.clear();
mNumFrames = 0;
mOutBufferUsedSize = 0;
mOutBufferStart = 0;
XCACodec::BDCReset();
}
void CASpeexDecoder::BDCUninitialize()
{
speex_bits_destroy(&mSpeexBits);
if (mSpeexDecoderState != NULL)
speex_decoder_ctl(mSpeexDecoderState, SPEEX_RESET_STATE, NULL); //??!
mSpeexFPList.clear();
if (mOutBuffer)
delete[] mOutBuffer;
mOutBuffer = NULL;
mOutBufferSize = 0;
mOutBufferUsedSize = 0;
mOutBufferStart = 0;
XCACodec::BDCUninitialize();
}
//*****************************************************************************
//
//! This function returns the current frame size from the decoder.
//!
//! This function queries the decoder for the current decode frame size in byte
//! and returns it to the caller.
//!
//! \return The current decoder frame size.
//
//*****************************************************************************
int32_t
SpeexDecodeFrameSizeGet(void)
{
int iFrameSize;
//
// Return 0 if the wrong request is made.
//
iFrameSize = 0;
//
// Query the decoder for the current frame size.
//
speex_decoder_ctl(g_sSpeexDecoder.pvState, SPEEX_GET_FRAME_SIZE,
&iFrameSize);
return(iFrameSize);
}
/*
* Modify codec settings.
*/
static pj_status_t spx_codec_modify(pjmedia_codec *codec,
const pjmedia_codec_param *attr )
{
struct spx_private *spx;
int tmp;
spx = (struct spx_private*) codec->codec_data;
/* VAD */
tmp = (attr->setting.vad != 0);
speex_encoder_ctl(spx->enc, SPEEX_SET_VAD, &tmp);
speex_encoder_ctl(spx->enc, SPEEX_SET_DTX, &tmp);
/* PENH */
tmp = attr->setting.penh;
speex_decoder_ctl(spx->dec, SPEEX_SET_ENH, &tmp);
return PJ_SUCCESS;
}
AudioOutputSpeech::AudioOutputSpeech(boost::shared_ptr<ClientUser> user, MessageHandler::UDPMessageType type) : AudioOutputUser(user->qsName) {
int err;
p = user;
umtType = type;
unsigned int srate = 0;
cCodec = NULL;
cdDecoder = NULL;
if (umtType != MessageHandler::UDPVoiceSpeex) {
srate = SAMPLE_RATE;
iFrameSize = srate / 100;
dsSpeex = NULL;
} else {
speex_bits_init(&sbBits);
dsSpeex = speex_decoder_init(speex_lib_get_mode(SPEEX_MODEID_UWB));
int iArg=1;
speex_decoder_ctl(dsSpeex, SPEEX_SET_ENH, &iArg);
speex_decoder_ctl(dsSpeex, SPEEX_GET_FRAME_SIZE, &iFrameSize);
speex_decoder_ctl(dsSpeex, SPEEX_GET_SAMPLING_RATE, &srate);
}
if (srate != SAMPLE_RATE)
srs = speex_resampler_init(1, srate, SAMPLE_RATE, 3, &err);
else
srs = NULL;
iOutputSize = static_cast<unsigned int>(ceilf(static_cast<float>(iFrameSize * SAMPLE_RATE) / static_cast<float>(SAMPLE_RATE)));
iBufferOffset = iBufferFilled = iLastConsume = 0;
bLastAlive = true;
iMissCount = 0;
iMissedFrames = 0;
ucFlags = 0xFF;
jbJitter = jitter_buffer_init(iFrameSize);
int margin = g.s.iJitterBufferSize * iFrameSize;
jitter_buffer_ctl(jbJitter, JITTER_BUFFER_SET_MARGIN, &margin);
fFadeIn = new float[iFrameSize];
fFadeOut = new float[iFrameSize];
float mul = static_cast<float>(M_PI / (2.0 * static_cast<double>(iFrameSize)));
for (unsigned int i=0;i<iFrameSize;++i)
fFadeIn[i] = fFadeOut[iFrameSize-i-1] = sinf(static_cast<float>(i) * mul);
}