134 lines
3.3 KiB
C
134 lines
3.3 KiB
C
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include "speex/speex_callbacks.h"
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
|
|
#ifdef FIXED_DEBUG
|
|
extern long long spx_mips;
|
|
#endif
|
|
|
|
#define FRAME_SIZE 640
|
|
#include <math.h>
|
|
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 sigpow,errpow,snr, seg_snr=0;
|
|
int snr_frames = 0;
|
|
char cbits[200];
|
|
int nbBits;
|
|
int i;
|
|
void *st;
|
|
void *dec;
|
|
SpeexBits bits;
|
|
spx_int32_t tmp;
|
|
int bitCount=0;
|
|
spx_int32_t skip_group_delay;
|
|
SpeexCallback callback;
|
|
|
|
sigpow = 0;
|
|
errpow = 0;
|
|
|
|
st = speex_encoder_init(speex_lib_get_mode(SPEEX_MODEID_UWB));
|
|
dec = speex_decoder_init(speex_lib_get_mode(SPEEX_MODEID_UWB));
|
|
|
|
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_encoder_ctl(st, SPEEX_GET_LOOKAHEAD, &skip_group_delay);
|
|
speex_decoder_ctl(dec, SPEEX_GET_LOOKAHEAD, &tmp);
|
|
skip_group_delay += 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, "rb");
|
|
outFile = argv[2];
|
|
fout = fopen(outFile, "wb+");
|
|
if (argc==4)
|
|
{
|
|
bitsFile = argv[3];
|
|
fbits = fopen(bitsFile, "wb");
|
|
}
|
|
speex_bits_init(&bits);
|
|
while (!feof(fin))
|
|
{
|
|
fread(in_short, sizeof(short), FRAME_SIZE, fin);
|
|
if (feof(fin))
|
|
break;
|
|
speex_bits_reset(&bits);
|
|
|
|
speex_encode_int(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_int(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;
|
|
}
|