int spx_encode_frame(int handle ,short *const pcm_data ,char *speex_data){
// char cbits[200];
float input[FRAME_SIZE];
speex_encode_union_t * speex_encode_u = (speex_encode_union_t *)handle;
/*Flush all the bits in the struct so we can encode a new frame*/
speex_bits_reset(&speex_encode_u->bits);
/*Encode the frame*/
// memcpy(input,pcm_data,FRAME_SIZE*2);
int i;
for (i = 0; i < FRAME_SIZE; i++)
input[i] = pcm_data[i];
speex_encode(speex_encode_u->state, input, &speex_encode_u->bits);
////write rtp packet header!!!!!RTP HEADER
//memcpy(speex_data ,&speex_encode_u->rtp_header ,RTP_HEADER_SIZE);
///*Copy the bits to an array of char that can be written*/
//int nbBytes = speex_bits_write(&speex_encode_u->bits, &speex_data[RTP_HEADER_SIZE], 38);
//fwrite(&speex_data[RTP_HEADER_SIZE] ,1 ,38 ,fp_speex_send);
int nbBytes = speex_bits_write(&speex_encode_u->bits, speex_data, 38);
fwrite(speex_data ,1 ,38 ,fp_speex_send);
printf("after speex_encode ,write nbBytes = %d to file !\n" ,nbBytes);
return 0;
}
int spx_encode_frame(int handle ,short *pcm_data ,char *speex_data){
// char cbits[200];
float input[FRAME_SIZE];
speex_encode_union_t * speex_encode_u = (speex_encode_union_t *)handle;
/*Flush all the bits in the struct so we can encode a new frame*/
speex_bits_reset(&speex_encode_u->bits);
/*Encode the frame*/
// memcpy(input,pcm_data,FRAME_SIZE*2);
int i;
for (i = 0; i < FRAME_SIZE; i++)
input[i] = pcm_data[i];
speex_encode(speex_encode_u->state, input, &speex_encode_u->bits);
/*Copy the bits to an array of char that can be written*/
// nbBytes = speex_bits_write(&speex_encode_u->bits, cbits, 200);
int nbBytes = speex_bits_write(&speex_encode_u->bits, speex_data, 38);
printf("nbBytes = %d \n" ,nbBytes);
// /*Write the size of the frame first. This is what sampledec expects but
// it’s likely to be different in your own application*/
// fwrite(&nbBytes, sizeof(int), 1, stdout);
// printf("nbBytes = %d \n" ,nbBytes);
// /*Write the compressed data*/
// //fwrite(cbits, 1, nbBytes, stdout);
}
int main(int argc, char **argv)
{
char *inFile;
FILE *fin;
short in[FRAME_SIZE];
float input[FRAME_SIZE];
char cbits[2000];
int nbBytes;
/*Holds the state of the encoder*/
void *state;
/*Holds bits so they can be read and written to by the Speex routines*/
SpeexBits bits;
int i, tmp;
/*Create a new encoder state in narrowband mode*/
state = speex_encoder_init(&speex_nb_mode);
//printf("inited\n");
/*Set the quality to 8 (15 kbps)*/
tmp=8;
speex_encoder_ctl(state, SPEEX_SET_QUALITY, &tmp);
inFile = argv[1];
fin = fopen(inFile, "r");
/*Initialization of the structure that holds the bits*/
speex_bits_init(&bits);
while (1)
{
/*Read a 16 bits/sample audio frame*/
fread(in, sizeof(short), FRAME_SIZE, fin);
if (feof(fin))
break;
/*Copy the 16 bits values to float so Speex can work on them*/
for (i=0;i<FRAME_SIZE;i++)
input[i]=in[i];
/*Flush all the bits in the struct so we can encode a new frame*/
speex_bits_reset(&bits);
/*Encode the frame*/
speex_encode(state, input, &bits);
/*Copy the bits to an array of char that can be written*/
nbBytes = speex_bits_write(&bits, cbits, 2000);
/*Write the size of the frame first. This is what sampledec expects but
it's likely to be different in your own application*/
fwrite(&nbBytes, sizeof(int), 1, stdout);
/*Write the compressed data*/
fwrite(cbits, 1, nbBytes, stdout);
}
/*Destroy the encoder state*/
speex_encoder_destroy(state);
/*Destroy the bit-packing struct*/
speex_bits_destroy(&bits);
fclose(fin);
return 0;
}
/* encode PCM data to speex frames */
static void speexout_encode(t_speexout *x)
{
if ( x->x_bytesbuffered > x->x_framesize )
{
speex_bits_reset(&x->x_bits);
{
t_int sp=0, rp=0;
while( sp < x->x_framesize )
{
rp=(x->x_outp+sp)%IN_BUFFER_SIZE;
// post( "speexout~ : sp=%d : rp=%d", sp, rp );
x->x_encchunk[ sp++ ] = *(x->x_inbuf+rp);
}
speex_encode(x->x_encstate, x->x_encchunk, &x->x_bits);
}
x->x_outp = (x->x_outp+x->x_framesize)%IN_BUFFER_SIZE;
x->x_bytesbuffered -= x->x_framesize;
x->x_encsize = speex_bits_write(&x->x_bits, x->x_outbuf+1, OUT_BUFFER_SIZE );
if ( x->x_encsize < 127 )
{
*(x->x_outbuf) = (char)x->x_encsize;
}
else
{
post( "speexout~ : encoding error : frame is more than 127 bytes" );
x->x_encsize = -1;
}
x->x_bytesemitted += x->x_encsize;
#ifdef DATADEBUG
{
t_int si;
printf( "speexout~ : encoded : " );
for ( si=0; si<x->x_encsize; si++ )
{
printf( "%d ", *(x->x_outbuf+si) );
}
printf( "\n" );
}
#endif
}
else
{
x->x_encsize = -1;
}
}
int main(int argc, char **argv)
{
char *inFile;
FILE *fin;
short in[FRAME_SIZE];
float input[FRAME_SIZE];
char cbits[200];
int nbBytes;
/*保存编码的状态*/
void *state;
/*保存字节因此他们可以被speex常规读写*/
SpeexBits bits;
int i, tmp;
//新建一个新的编码状态在窄宽(narrowband)模式下
state = speex_encoder_init(&speex_nb_mode);
//设置质量为8(15kbps)
tmp=8;
speex_encoder_ctl(state, SPEEX_SET_QUALITY, &tmp);
inFile = argv[1];
fin = fopen(inFile, "r");
//初始化结构使他们保存数据
speex_bits_init(&bits);
while (1) {
//读入一帧16bits的声音
fread(in, sizeof(short), FRAME_SIZE, fin);
if (feof(fin))
break;
//把16bits的值转化为float,以便speex库可以在上面工作
for (i=0;i<FRAME_SIZE;i++)
input[i]=in[i];
//清空这个结构体里所有的字节,以便我们可以编码一个新的帧
speex_bits_reset(&bits);
//对帧进行编码
speex_encode(state, input, &bits);
//把bits拷贝到一个利用写出的char型数组
nbBytes = speex_bits_write(&bits, cbits, 200);
//首先写出帧的大小,这是sampledec文件需要的一个值,但是你的应用程序中可能不一样
fwrite(&nbBytes, sizeof(int), 1, stdout);
//写出压缩后的数组
fwrite(cbits, 1, nbBytes, stdout);
}
//释放编码器状态量
speex_encoder_destroy(state);
//释放bit_packing结构
speex_bits_destroy(&bits);
fclose(fin);
return 0;
}
void gviSpursSpeexEncode(SpursSpeexTaskOutput *spuTaskOut)
{
short *inBuffer;
float *speexBuffer;
char *outBuffer;
unsigned int i;
spuTaskOut->mSpeexEncodedFrameSize = 0;
spuTaskOut->mSpeexInitialized = 1;
spuTaskOut->mSpeexSamplesPerFrame = 0;
spuTaskOut->mSpeexReturnCode = 0;
spuTaskOut->mSpeexOutBufferSize = 0;
speexBuffer = (float *)memalign(16, gviSpursSpeexTaskDesc.mInputBufferSize * sizeof(float));
inBuffer = (short *)memalign(16, gviSpursSpeexTaskDesc.mInputBufferSize * sizeof(short));
outBuffer = (char *)memalign(16, gviSpursSpeexTaskDesc.mOutputBufferSize);
memset(speexBuffer, 0, gviSpursSpeexTaskDesc.mInputBufferSize * sizeof(float));
memset(inBuffer, 0, gviSpursSpeexTaskDesc.mInputBufferSize * sizeof(short));
memset(outBuffer, 0, gviSpursSpeexTaskDesc.mOutputBufferSize);
cellDmaGet(inBuffer, (uint64_t)gviSpursSpeexTaskDesc.mInputBuffer, gviSpursSpeexTaskDesc.mInputBufferSize * sizeof(short), DMA_TAG(1), 0,0);
cellDmaWaitTagStatusAll(DMA_MASK(1));
// convert the input to floats for encoding
for(i = 0 ; i < gviSpursSpeexTaskDesc.mInputBufferSize ; i++)
speexBuffer[i] = inBuffer[i];
// (re)initialize the bits struct
speex_bits_init_buffer(&gviSpursSpeexBits,gviSpursSpeexBitsBuffer,sizeof(gviSpursSpeexBitsBuffer));
// flush the bits
speex_bits_reset(&gviSpursSpeexBits);
// encode the frame
speex_encode(gviSpursSpeexStateBuffer, speexBuffer, &gviSpursSpeexBits);
// write the bits to the output
spuTaskOut->mSpeexOutBufferSize = speex_bits_write(&gviSpursSpeexBits, (char *)outBuffer, gviSpursSpeexTaskDesc.mEncodedFrameSize);
//spuDebugPrintf("[Speex][SPU] transferring data back, output size should be: %d\n", gviSpursSpeexTaskDesc.mOutputBufferSize>16?gviSpursSpeexTaskDesc.mOutputBufferSize:16);
cellDmaPut(outBuffer, (uint64_t)gviSpursSpeexTaskDesc.mOutputBuffer, gviSpursSpeexTaskDesc.mOutputBufferSize, DMA_TAG(1), 0, 0);
cellDmaWaitTagStatusAll(DMA_MASK(1));
//spuDebugPrintf("[Speex][SPU] done transferring data back\n");
free(speexBuffer);
free(inBuffer);
free(outBuffer);
spuTaskOut->mSpeexReturnCode = 0;
}
void gviSpeexEncode(GVByte * out, const GVSample * in)
{
int bytesWritten;
int i;
// convert the input to floats for encoding
for(i = 0 ; i < gviSpeexSamplesPerFrame ; i++)
gviSpeexBuffer[i] = in[i];
// flush the bits
speex_bits_reset(&gviSpeexBits);
// encode the frame
speex_encode(gviSpeexEncoderState, gviSpeexBuffer, &gviSpeexBits);
// write the bits to the output
bytesWritten = speex_bits_write(&gviSpeexBits, (char *)out, gviSpeexEncodedFrameSize);
GS_ASSERT(bytesWritten == gviSpeexEncodedFrameSize);
}
static int codec_drv_control(
ErlDrvData handle,
unsigned int command,
char *buf, int len,
char **rbuf, int rlen)
{
codec_data* d = (codec_data*)handle;
int i;
int ret = 0;
ErlDrvBinary *out;
*rbuf = NULL;
float frame[FRAME_SIZE];
char cbits[200];
switch(command) {
case CMD_ENCODE:
for (i=0; i < len / 2; i++){
frame[i] = (buf[2*i] & 0xff) | (buf[2*i+1] << 8);
}
speex_bits_reset(&d->bits);
speex_encode(d->estate, frame, &d->bits);
ret = speex_bits_write(&d->bits, cbits, 200);
out = driver_alloc_binary(ret);
memcpy(out->orig_bytes, cbits, ret);
*rbuf = (char *) out;
break;
case CMD_DECODE:
out = driver_alloc_binary(2*FRAME_SIZE);
speex_bits_read_from(&d->bits, buf, len);
speex_decode_int(d->dstate, &d->bits, (spx_int16_t *)out->orig_bytes);
ret = 2*FRAME_SIZE;
*rbuf = (char *) out;
break;
default:
break;
}
return ret;
}
void Transmitter::sendAudioPacket(float *fsamples, int samples)
{
int tot = 0;
speex_bits_reset(&bits);
if (state)
{
speex_encode(state, fsamples, &bits);
tot = speex_bits_write(&bits, out, MAXBUFSIZE);
}
if (tot>0) {
int size;
char type = DRTA_INFO_AUDIO;
try
{
if (blowfish)
{
size = PacketHandler::calculateCryptedSize(tot);
type = DRTA_INFO_CRYPTED_AUDIO;
}
else
size = PacketHandler::calculateSize(tot);
Packet *p = new Packet (size);
PacketHandler::buildModePacket(p, out, tot, type, speexmode);
if (blowfish)
p->crypt(blowfish);
if( _enable_sctp)
sendPacket(p , MAPLE_STM_AUDIO);
else
sendPacket(p);
delete p;
}
catch (Error e)
{
emitError(e.getText());
}
}
}
hsBool plSpeex::Encode(short *data, int numFrames, int *packedLength, hsRAMStream *out)
{
*packedLength = 0;
short *pData = data; // pointer to input data
float *input = new float[fFrameSize]; // input to speex - used as am intermediate array since speex requires float data
uint8_t frameLength; // number of bytes speex compressed frame to
uint8_t *frameData = new uint8_t[fFrameSize]; // holds one frame of encoded data
// encode data
for( int i = 0; i < numFrames; i++ )
{
// convert input data to floats
for( int j = 0; j < fFrameSize; j++ )
{
input[j] = pData[j];
}
speex_bits_reset(fBits); // reset bit structure
// encode data using speex
speex_encode(fEncoderState, input, fBits);
frameLength = speex_bits_write(fBits, (char *)frameData, fFrameSize);
// write data - length and bytes
out->WriteLE(frameLength);
*packedLength += sizeof(frameLength); // add length of encoded frame
out->Write(frameLength, frameData);
*packedLength += frameLength; // update length
pData += fFrameSize; // move input pointer
}
delete[] frameData;
delete[] input;
return true;
}
void Phone::send(float *fsamples, int samples)
{
int tot = 0;
speex_bits_reset(&enc_bits);
if (enc_state)
{
speex_encode(enc_state, fsamples, &enc_bits);
tot = speex_bits_write(&enc_bits, out, MAXBUFSIZE);
}
if (tot > 0) {
try
{
for (int i=0; i<maxcall; i++)
{
if (calls[i])
calls[i]->send(out, tot);
}
}
catch (Error e)
{
abortCall(e.getCallId(), e.getText());
}
}
}
void
*os_sound_start_out_thread(void *_ca)
{
jcall_t *ca = (jcall_t*)_ca;
char data_out[10000];
short sp_data_out_s[640];
float sp_data_out_f[640];
int timestamp = 0;
int i;
while (ca->enable_audio != -1)
{
int k;
speex_bits_reset(&ca->speex_bits);
for (k=0; k<ca->speex_nb_packet;k++)
{
int j;
i=read(fd, sp_data_out_s, ca->speex_fsize * sizeof(short));
if (i>0)
{
for (j=0; j<ca->speex_fsize;j++)
{ /* convert to float */
sp_data_out_f[j] = sp_data_out_s[j];
}
speex_encode(ca->speex_enc, sp_data_out_f, &ca->speex_bits);
}
}
speex_bits_insert_terminator(&ca->speex_bits);
/* convert to char */
i = speex_bits_write(&ca->speex_bits, data_out, sizeof(data_out));
rtp_session_send_with_ts(ca->rtp_session, data_out, i,timestamp);
timestamp+=i;
}
return NULL;
}
/*! \brief convert work buffer and produce output frame */
static struct ast_frame *lintospeex_frameout(struct ast_trans_pvt *pvt)
{
struct speex_coder_pvt *tmp = pvt->pvt;
int is_speech=1;
int datalen = 0; /* output bytes */
int samples = 0; /* output samples */
/* We can't work on anything less than a frame in size */
if (pvt->samples < tmp->framesize)
return NULL;
speex_bits_reset(&tmp->bits);
while (pvt->samples >= tmp->framesize) {
#ifdef _SPEEX_TYPES_H
/* Preprocess audio */
if (preproc)
is_speech = speex_preprocess(tmp->pp, tmp->buf + samples, NULL);
/* Encode a frame of data */
if (is_speech) {
/* If DTX enabled speex_encode returns 0 during silence */
is_speech = speex_encode_int(tmp->speex, tmp->buf + samples, &tmp->bits) || !dtx;
} else {
/* 5 zeros interpreted by Speex as silence (submode 0) */
speex_bits_pack(&tmp->bits, 0, 5);
}
#else
{
float fbuf[1024];
int x;
/* Convert to floating point */
for (x = 0; x < tmp->framesize; x++)
fbuf[x] = tmp->buf[samples + x];
/* Encode a frame of data */
is_speech = speex_encode(tmp->speex, fbuf, &tmp->bits) || !dtx;
}
#endif
samples += tmp->framesize;
pvt->samples -= tmp->framesize;
}
/* Move the data at the end of the buffer to the front */
if (pvt->samples)
memmove(tmp->buf, tmp->buf + samples, pvt->samples * 2);
/* Use AST_FRAME_CNG to signify the start of any silence period */
if (is_speech) {
tmp->silent_state = 0;
} else {
if (tmp->silent_state) {
return NULL;
} else {
tmp->silent_state = 1;
speex_bits_reset(&tmp->bits);
memset(&pvt->f, 0, sizeof(pvt->f));
pvt->f.frametype = AST_FRAME_CNG;
pvt->f.samples = samples;
/* XXX what now ? format etc... */
}
}
/* Terminate bit stream */
speex_bits_pack(&tmp->bits, 15, 5);
datalen = speex_bits_write(&tmp->bits, pvt->outbuf.c, pvt->t->buf_size);
return ast_trans_frameout(pvt, datalen, samples);
}
static int output_data(char *buf, int32 nbytes)
{
char cbits[MAX_FRAME_BYTES];
Speex_ctx *ctx = speex_ctx;
int nbBytes;
int16 *s;
int i, j;
int ret;
int nbytes_left;
if (dpm.fd < 0)
return 0;
ctx->in_bytes += nbytes;
/*
Main encoding loop (one frame per iteration)
*/
nbytes_left = nbytes;
s = (int16 *)buf;
while (1) {
ctx->ogg_packetid++;
/*
packing 16 bit -> float sample
*/
for (i = ctx->input_idx; i < ctx->frame_size * ctx->channels; i++) {
/* stream is ended, and buffer is not full. wait next spooling */
if (nbytes_left < 0) {
/* canceling ogg packet */
ctx->ogg_packetid--;
return 0;
}
ctx->input[i] = *s++;
nbytes_left -= 2; /* -16 bit*/
ctx->input_idx++;
}
/*
buffer is full. encode now.
*/
ctx->input_idx = 0;
if (ctx->channels == 2)
speex_encode_stereo(ctx->input, ctx->frame_size, &ctx->bits);
/* Encode the frame */
speex_encode(ctx->state, ctx->input, &ctx->bits);
if ((ctx->ogg_packetid + 1) % ctx->nframes != 0)
continue;
speex_bits_insert_terminator(&ctx->bits);
/* Copy the bits to an array of char that can be written */
nbBytes = speex_bits_write(&ctx->bits, cbits, MAX_FRAME_BYTES);
/* Flush all the bits in the struct so we can encode a new frame */
speex_bits_reset(&ctx->bits);
/* ogg packet setup */
ctx->op.packet = (unsigned char *)cbits;
ctx->op.bytes = nbBytes;
ctx->op.b_o_s = 0;
ctx->op.e_o_s = 0;
ctx->op.granulepos = (ctx->ogg_packetid + ctx->nframes) * ctx->frame_size;
ctx->op.packetno = 2 + ctx->ogg_packetid / ctx->nframes;
ogg_stream_packetin(&ctx->os, &ctx->op);
/* Write all new pages (most likely 0 or 1) */
while (ogg_stream_pageout(&ctx->os, &ctx->og)) {
ret = oe_write_page(&ctx->og, dpm.fd);
if (ret != ctx->og.header_len + ctx->og.body_len) {
ctl->cmsg(CMSG_ERROR, VERB_NORMAL, "failed writing header to output stream");
return -1;
}
else
ctx->out_bytes += ret;
}
}
return 0;
}
static void close_output(void)
{
int i;
char cbits[MAX_FRAME_BYTES];
Speex_ctx *ctx = speex_ctx;
int nbBytes;
int ret;
if (ctx == NULL)
return;
if (dpm.fd < 0)
return;
/*
Write last frame
*/
if (speex_ctx != NULL) {
if ((ctx->ogg_packetid + 1) % ctx->nframes != 0) {
while ((ctx->ogg_packetid + 1) % ctx->nframes != 0) {
ctx->ogg_packetid++;
speex_bits_pack(&ctx->bits, 15, 5);
}
nbBytes = speex_bits_write(&ctx->bits, cbits, MAX_FRAME_BYTES);
ctx->op.packet = (unsigned char *)cbits;
ctx->op.bytes = nbBytes;
ctx->op.b_o_s = 0;
ctx->op.e_o_s = 1;
ctx->op.granulepos = (ctx->ogg_packetid + ctx->nframes) * ctx->frame_size;
ctx->op.packetno = 2 + ctx->ogg_packetid / ctx->nframes;
ogg_stream_packetin(&ctx->os, &ctx->op);
}
for (i = ctx->input_idx; i < ctx->frame_size * ctx->channels; i++) {
/* left is zero-cleaned */
ctx->input[i] = 0;
}
if (ctx->channels == 2)
speex_encode_stereo(ctx->input, ctx->frame_size, &ctx->bits);
/* Encode the frame */
speex_encode(ctx->state, ctx->input, &ctx->bits);
speex_bits_insert_terminator(&ctx->bits);
/* Copy the bits to an array of char that can be written */
nbBytes = speex_bits_write(&ctx->bits, cbits, MAX_FRAME_BYTES);
/* Flush all the bits in the struct so we can encode a new frame */
speex_bits_reset(&ctx->bits);
/* ogg packet setup */
ctx->op.packet = (unsigned char *)cbits;
ctx->op.bytes = nbBytes;
ctx->op.b_o_s = 0;
ctx->op.e_o_s = 1;
ctx->op.granulepos = (ctx->ogg_packetid + ctx->nframes) * ctx->frame_size;
ctx->op.packetno = 2 + ctx->ogg_packetid / ctx->nframes;
ogg_stream_packetin(&ctx->os, &ctx->op);
/* Write all new pages (most likely 0 or 1) */
while (ogg_stream_pageout(&ctx->os, &ctx->og)) {
ret = oe_write_page(&ctx->og, dpm.fd);
if (ret != ctx->og.header_len + ctx->og.body_len) {
ctl->cmsg(CMSG_ERROR, VERB_NORMAL, "failed writing header to output stream");
return;
}
else
ctx->out_bytes += ret;
}
ogg_stream_clear(&speex_ctx->os);
speex_bits_destroy(&speex_ctx->bits);
speex_encoder_destroy(speex_ctx->state);
close(dpm.fd);
dpm.fd = -1;
free(speex_ctx->input);
ctl->cmsg(CMSG_INFO, VERB_NORMAL, "Wrote %lu/%lu bytes(%g%% compressed)",
ctx->out_bytes, ctx->in_bytes, ((double)ctx->out_bytes / (double)ctx->in_bytes)) * 100.;
speex_ctx->input = NULL;
free(speex_ctx);
speex_ctx = NULL;
}
return;
}
int main(int argc, char **argv)
{
char *inFile, *outFile, *bitsFile;
FILE *fin, *fout, *fbits=NULL;
short in_short[FRAME_SIZE];
short out_short[FRAME_SIZE];
float in_float[FRAME_SIZE];
float sigpow,errpow,snr, seg_snr=0;
int snr_frames = 0;
char cbits[200];
int nbBits;
int i;
void *st;
void *dec;
SpeexBits bits;
int tmp;
int bitCount=0;
int skip_group_delay;
SpeexCallback callback;
sigpow = 0;
errpow = 0;
st = speex_encoder_init(&speex_uwb_mode);
dec = speex_decoder_init(&speex_uwb_mode);
callback.callback_id = SPEEX_INBAND_CHAR;
callback.func = speex_std_char_handler;
callback.data = stderr;
speex_decoder_ctl(dec, SPEEX_SET_HANDLER, &callback);
callback.callback_id = SPEEX_INBAND_MODE_REQUEST;
callback.func = speex_std_mode_request_handler;
callback.data = st;
speex_decoder_ctl(dec, SPEEX_SET_HANDLER, &callback);
tmp=0;
speex_decoder_ctl(dec, SPEEX_SET_ENH, &tmp);
tmp=0;
speex_encoder_ctl(st, SPEEX_SET_VBR, &tmp);
tmp=7;
speex_encoder_ctl(st, SPEEX_SET_QUALITY, &tmp);
tmp=1;
speex_encoder_ctl(st, SPEEX_SET_COMPLEXITY, &tmp);
speex_mode_query(&speex_nb_mode, SPEEX_MODE_FRAME_SIZE, &tmp);
fprintf (stderr, "frame size: %d\n", tmp);
skip_group_delay = 509;
if (argc != 4 && argc != 3)
{
fprintf (stderr, "Usage: encode [in file] [out file] [bits file]\nargc = %d", argc);
exit(1);
}
inFile = argv[1];
fin = fopen(inFile, "r");
outFile = argv[2];
fout = fopen(outFile, "w+");
if (argc==4)
{
bitsFile = argv[3];
fbits = fopen(bitsFile, "w");
}
speex_bits_init(&bits);
while (!feof(fin))
{
fread(in_short, sizeof(short), FRAME_SIZE, fin);
if (feof(fin))
break;
for (i=0;i<FRAME_SIZE;i++)
in_float[i]=in_short[i];
speex_bits_reset(&bits);
speex_encode(st, in_short, &bits);
nbBits = speex_bits_write(&bits, cbits, 200);
bitCount+=bits.nbBits;
if (argc==4)
fwrite(cbits, 1, nbBits, fbits);
speex_bits_rewind(&bits);
speex_decode(dec, &bits, out_short);
speex_bits_reset(&bits);
fwrite(&out_short[skip_group_delay], sizeof(short), FRAME_SIZE-skip_group_delay, fout);
skip_group_delay = 0;
}
fprintf (stderr, "Total encoded size: %d bits\n", bitCount);
speex_encoder_destroy(st);
speex_decoder_destroy(dec);
rewind(fin);
rewind(fout);
while ( FRAME_SIZE == fread(in_short, sizeof(short), FRAME_SIZE, fin)
&&
FRAME_SIZE == fread(out_short, sizeof(short), FRAME_SIZE,fout) )
{
float s=0, e=0;
for (i=0;i<FRAME_SIZE;++i) {
s += (float)in_short[i] * in_short[i];
e += ((float)in_short[i]-out_short[i]) * ((float)in_short[i]-out_short[i]);
}
seg_snr += 10*log10((s+1)/(e+1));
sigpow += s;
errpow += e;
snr_frames++;
}
fclose(fin);
fclose(fout);
snr = 10 * log10( sigpow / errpow );
seg_snr /= snr_frames;
fprintf(stderr,"SNR = %f\nsegmental SNR = %f\n",snr, seg_snr);
#ifdef FIXED_DEBUG
printf ("Total: %f MIPS\n", (float)(1e-6*50*spx_mips/snr_frames));
#endif
return 1;
}
int SpeexEncoder::encoder_encode(const short *data, char **output)
{
////fprintf(stderr, "encoder_encode1\n");
//for (int i = 0; i < FRAME_SIZE; i++){
// encoder_input[i] = data[i];
//}
//speex_encode_int(encoder_state,(short*) encoder_input, &encoder_bits);
//speex_bits_insert_terminator(&encoder_bits);
////fprintf(stderr, "encoder_encode2\n");
//speex_bits_reset(&encoder_bits);
////fprintf(stderr, "encoder_encode3\n");
//speex_encode(encoder_state, encoder_input, &encoder_bits);
////fprintf(stderr, "encoder_encode4\n");
//char outputBuffer[200];
//int size;
////fprintf(stderr, "encoder_encode4.5\n");
//size = speex_bits_write(&encoder_bits, outputBuffer, 200);
char *inFile;
FILE *fin;
short in[FRAME_SIZE];
inFile = "gate10.decode.raw";//argv[1];
fin = fopen(inFile, "r");
float input[FRAME_SIZE];
int i;
/*Initialization of the structure that holds the bits*/
speex_bits_init(&bits);
typedef std::vector<char> buffer_type;
buffer_type myData;
while (1)
{
/*Read a 16 bits/sample audio frame*/
fread(in, sizeof(short), FRAME_SIZE, fin);
if (feof(fin))
break;
/*Copy the 16 bits values to float so Speex can work on them*/
for (i = 0; i<FRAME_SIZE; i++)
input[i] = in[i];
/*Flush all the bits in the struct so we can encode a new frame*/
speex_bits_reset(&bits);
/*Encode the frame*/
speex_encode(encoder_state, input, &bits);
/*Copy the bits to an array of char that can be written*/
nbBytes = speex_bits_write(&bits, cbits, MAX_FRAME_BYTES);
/*Write the size of the frame first. This is what sampledec expects but
it's likely to be different in your own application*/
fwrite(&nbBytes, sizeof(int), 1, stdout);
/*Write the compressed data*/
fwrite(cbits, 1, nbBytes, stdout);
fprintf(stderr, "EncodeTest2 %i\n" , myData.size());
myData.insert(myData.end(), cbits, cbits + nbBytes);
}
char *buffer = new char[myData.size()];
std::copy(myData.begin(), myData.end(), buffer);
fprintf(stderr, "EncodeTest2 %i\n", sizeof(buffer));
//fprintf(stderr, "encoder_encode5\n");
*output = buffer;
//fprintf(stderr, "encoder_encode6 %i\n", size);
return myData.size();
}
int main(int argc, char **argv)
{
char *inFile, *outFile, *bitsFile;
FILE *fin, *fout, *fbits=NULL;
short in[FRAME_SIZE];
float input[FRAME_SIZE], bak[FRAME_SIZE], bak2[FRAME_SIZE];
char cbits[200];
int nbBits;
int i;
void *st;
void *dec;
SpeexBits bits;
int tmp;
int bitCount=0;
SpeexCallback callback;
for (i=0;i<FRAME_SIZE;i++)
bak2[i]=0;
st = speex_encoder_init(&speex_nb_mode);
dec = speex_decoder_init(&speex_nb_mode);
callback.callback_id = SPEEX_INBAND_CHAR;
callback.func = speex_std_char_handler;
callback.data = stderr;
speex_decoder_ctl(dec, SPEEX_SET_HANDLER, &callback);
callback.callback_id = SPEEX_INBAND_MODE_REQUEST;
callback.func = speex_std_mode_request_handler;
callback.data = st;
speex_decoder_ctl(dec, SPEEX_SET_HANDLER, &callback);
tmp=0;
speex_decoder_ctl(dec, SPEEX_SET_ENH, &tmp);
tmp=0;
speex_encoder_ctl(st, SPEEX_SET_VBR, &tmp);
tmp=8;
speex_encoder_ctl(st, SPEEX_SET_QUALITY, &tmp);
tmp=1;
speex_encoder_ctl(st, SPEEX_SET_COMPLEXITY, &tmp);
speex_mode_query(&speex_nb_mode, SPEEX_MODE_FRAME_SIZE, &tmp);
fprintf (stderr, "frame size: %d\n", tmp);
if (argc != 4 && argc != 3)
{
fprintf (stderr, "Usage: encode [in file] [out file] [bits file]\nargc = %d", argc);
exit(1);
}
inFile = argv[1];
fin = fopen(inFile, "r");
outFile = argv[2];
fout = fopen(outFile, "w");
if (argc==4)
{
bitsFile = argv[3];
fbits = fopen(bitsFile, "w");
}
speex_bits_init(&bits);
while (!feof(fin))
{
fread(in, sizeof(short), FRAME_SIZE, fin);
if (feof(fin))
break;
for (i=0;i<FRAME_SIZE;i++)
bak[i]=input[i]=in[i];
speex_bits_reset(&bits);
/*
speex_bits_pack(&bits, 14, 5);
speex_bits_pack(&bits, SPEEX_INBAND_CHAR, 4);
speex_bits_pack(&bits, 'A', 8);
speex_bits_pack(&bits, 14, 5);
speex_bits_pack(&bits, SPEEX_INBAND_MODE_REQUEST, 4);
speex_bits_pack(&bits, 7, 4);
speex_bits_pack(&bits, 15, 5);
speex_bits_pack(&bits, 2, 4);
speex_bits_pack(&bits, 0, 16);
*/
speex_encode(st, input, &bits);
nbBits = speex_bits_write(&bits, cbits, 200);
bitCount+=bits.nbBits;
printf ("Encoding frame in %d bits\n", nbBits*8);
if (argc==4)
fwrite(cbits, 1, nbBits, fbits);
{
float enoise=0, esig=0, snr;
for (i=0;i<FRAME_SIZE;i++)
{
enoise+=(bak2[i]-input[i])*(bak2[i]-input[i]);
esig += bak2[i]*bak2[i];
}
snr = 10*log10((esig+1)/(enoise+1));
printf ("real SNR = %f\n", snr);
}
speex_bits_rewind(&bits);
speex_decode(dec, &bits, input);
/* Save the bits here */
for (i=0;i<FRAME_SIZE;i++)
{
if (input[i]>32000)
input[i]=32000;
else if (input[i]<-32000)
input[i]=-32000;
}
speex_bits_reset(&bits);
for (i=0;i<FRAME_SIZE;i++)
in[i]=(short)input[i];
for (i=0;i<FRAME_SIZE;i++)
bak2[i]=bak[i];
fwrite(in, sizeof(short), FRAME_SIZE, fout);
}
fprintf (stderr, "Total encoded size: %d bits\n", bitCount);
speex_encoder_destroy(st);
speex_decoder_destroy(dec);
return 1;
}
int main(int argc, char **argv)
{
char *inFile, *outFile, *bitsFile;
FILE *fin, *fout, *fbits=NULL;
short in[FRAME_SIZE];
float input[FRAME_SIZE], bak[FRAME_SIZE], bak2[FRAME_SIZE];
char cbits[200];
int nbBits;
int i;
void *st;
void *dec;
SpeexBits bits;
int tmp;
int bitCount=0;
for (i=0;i<FRAME_SIZE;i++)
bak2[i]=0;
st = speex_encoder_init(&speex_uwb_mode);
dec = speex_decoder_init(&speex_uwb_mode);
tmp=0;
/*speex_decoder_ctl(dec, SPEEX_SET_ENH, &tmp);
tmp=0;
speex_encoder_ctl(st, SPEEX_SET_VBR, &tmp);
tmp=10;
speex_encoder_ctl(st, SPEEX_SET_QUALITY, &tmp);
tmp=3;
speex_encoder_ctl(st, SPEEX_SET_COMPLEXITY, &tmp);
tmp=3;
speex_encoder_ctl(st, SPEEX_SET_HIGH_MODE, &tmp);
tmp=6;
speex_encoder_ctl(st, SPEEX_SET_LOW_MODE, &tmp);
*/
if (argc != 4 && argc != 3)
{
fprintf (stderr, "Usage: encode [in file] [out file] [bits file]\nargc = %d", argc);
exit(1);
}
inFile = argv[1];
fin = fopen(inFile, "r");
outFile = argv[2];
fout = fopen(outFile, "w");
if (argc==4)
{
bitsFile = argv[3];
fbits = fopen(bitsFile, "w");
}
speex_bits_init(&bits);
while (!feof(fin))
{
fread(in, sizeof(short), FRAME_SIZE, fin);
if (feof(fin))
break;
for (i=0;i<FRAME_SIZE;i++)
bak[i]=input[i]=in[i];
speex_bits_reset(&bits);
speex_encode(st, input, &bits);
nbBits = speex_bits_write(&bits, cbits, 200);
bitCount+=bits.nbBits;
printf ("Encoding frame in %d bits\n", nbBits*8);
if (argc==4)
fwrite(cbits, 1, nbBits, fbits);
{
float enoise=0, esig=0, snr;
for (i=0;i<FRAME_SIZE;i++)
{
enoise+=(bak2[i]-input[i])*(bak2[i]-input[i]);
esig += bak2[i]*bak2[i];
}
snr = 10*log10((esig+1)/(enoise+1));
printf ("real SNR = %f\n", snr);
}
speex_bits_rewind(&bits);
speex_decode(dec, &bits, input);
/* Save the bits here */
for (i=0;i<FRAME_SIZE;i++)
{
if (input[i]>32000)
input[i]=32000;
else if (input[i]<-32000)
input[i]=-32000;
}
speex_bits_reset(&bits);
for (i=0;i<FRAME_SIZE;i++)
in[i]=(short)input[i];
for (i=0;i<FRAME_SIZE;i++)
bak2[i]=bak[i];
fwrite(in, sizeof(short), FRAME_SIZE, fout);
}
fprintf (stderr, "Total encoded size: %d bits\n", bitCount);
speex_encoder_destroy(st);
speex_decoder_destroy(dec);
speex_bits_destroy(&bits);
fclose(fin);
fclose(fout);
return 1;
}
/*! \brief convert work buffer and produce output frame */
static struct ast_frame *lintospeex_frameout(struct ast_trans_pvt *pvt)
{
struct speex_coder_pvt *tmp = pvt->pvt;
int is_speech=1;
int datalen = 0; /* output bytes */
int samples = 0; /* output samples */
/* We can't work on anything less than a frame in size */
if (pvt->samples < tmp->framesize)
return NULL;
speex_bits_reset(&tmp->bits);
while (pvt->samples >= tmp->framesize) {
#ifdef _SPEEX_TYPES_H
/* Preprocess audio */
if (preproc)
is_speech = speex_preprocess(tmp->pp, tmp->buf + samples, NULL);
/* Encode a frame of data */
if (is_speech) {
/* If DTX enabled speex_encode returns 0 during silence */
is_speech = speex_encode_int(tmp->speex, tmp->buf + samples, &tmp->bits) || !dtx;
} else {
/* 5 zeros interpreted by Speex as silence (submode 0) */
speex_bits_pack(&tmp->bits, 0, 5);
}
#else
{
float fbuf[1024];
int x;
/* Convert to floating point */
for (x = 0; x < tmp->framesize; x++)
fbuf[x] = tmp->buf[samples + x];
/* Encode a frame of data */
is_speech = speex_encode(tmp->speex, fbuf, &tmp->bits) || !dtx;
}
#endif
samples += tmp->framesize;
pvt->samples -= tmp->framesize;
}
/* Move the data at the end of the buffer to the front */
if (pvt->samples)
memmove(tmp->buf, tmp->buf + samples, pvt->samples * 2);
/* Use AST_FRAME_CNG to signify the start of any silence period */
if (is_speech) {
tmp->silent_state = 0;
} else {
if (tmp->silent_state) {
return NULL;
} else {
struct ast_frame frm = {
.frametype = AST_FRAME_CNG,
.src = pvt->t->name,
};
/*
* XXX I don't think the AST_FRAME_CNG code has ever
* really worked for speex. There doesn't seem to be
* any consumers of the frame type. Everyone that
* references the type seems to pass the frame on.
*/
tmp->silent_state = 1;
/* XXX what now ? format etc... */
return ast_frisolate(&frm);
}
}
/* Terminate bit stream */
speex_bits_pack(&tmp->bits, 15, 5);
datalen = speex_bits_write(&tmp->bits, pvt->outbuf.c, pvt->t->buf_size);
return ast_trans_frameout(pvt, datalen, samples);
}
static void speextolin_destroy(struct ast_trans_pvt *arg)
{
struct speex_coder_pvt *pvt = arg->pvt;
speex_decoder_destroy(pvt->speex);
speex_bits_destroy(&pvt->bits);
}
static void lintospeex_destroy(struct ast_trans_pvt *arg)
{
struct speex_coder_pvt *pvt = arg->pvt;
#ifdef _SPEEX_TYPES_H
if (preproc)
speex_preprocess_state_destroy(pvt->pp);
#endif
speex_encoder_destroy(pvt->speex);
speex_bits_destroy(&pvt->bits);
}
static struct ast_translator speextolin = {
.name = "speextolin",
.src_codec = {
.name = "speex",
.type = AST_MEDIA_TYPE_AUDIO,
.sample_rate = 8000,
},
.dst_codec = {
.name = "slin",
.type = AST_MEDIA_TYPE_AUDIO,
.sample_rate = 8000,
},
.format = "slin",
