5
#include <speex/speex.h>
8
#include <speex/speex_callbacks.h>
11
extern long long spx_mips;
14
#define FRAME_SIZE 640
16
int main(int argc, char **argv)
18
char *inFile, *outFile, *bitsFile;
19
FILE *fin, *fout, *fbits=NULL;
20
short in_short[FRAME_SIZE];
21
short out_short[FRAME_SIZE];
22
float in_float[FRAME_SIZE];
23
float sigpow,errpow,snr, seg_snr=0;
33
spx_int32_t skip_group_delay;
34
SpeexCallback callback;
39
st = speex_encoder_init(speex_lib_get_mode(SPEEX_MODEID_UWB));
40
dec = speex_decoder_init(speex_lib_get_mode(SPEEX_MODEID_UWB));
42
callback.callback_id = SPEEX_INBAND_CHAR;
43
callback.func = speex_std_char_handler;
44
callback.data = stderr;
45
speex_decoder_ctl(dec, SPEEX_SET_HANDLER, &callback);
47
callback.callback_id = SPEEX_INBAND_MODE_REQUEST;
48
callback.func = speex_std_mode_request_handler;
50
speex_decoder_ctl(dec, SPEEX_SET_HANDLER, &callback);
53
speex_decoder_ctl(dec, SPEEX_SET_ENH, &tmp);
55
speex_encoder_ctl(st, SPEEX_SET_VBR, &tmp);
57
speex_encoder_ctl(st, SPEEX_SET_QUALITY, &tmp);
59
speex_encoder_ctl(st, SPEEX_SET_COMPLEXITY, &tmp);
61
speex_encoder_ctl(st, SPEEX_GET_LOOKAHEAD, &skip_group_delay);
62
speex_decoder_ctl(dec, SPEEX_GET_LOOKAHEAD, &tmp);
63
skip_group_delay += tmp;
66
if (argc != 4 && argc != 3)
68
fprintf (stderr, "Usage: encode [in file] [out file] [bits file]\nargc = %d", argc);
72
fin = fopen(inFile, "rb");
74
fout = fopen(outFile, "wb+");
78
fbits = fopen(bitsFile, "wb");
80
speex_bits_init(&bits);
83
fread(in_short, sizeof(short), FRAME_SIZE, fin);
86
for (i=0;i<FRAME_SIZE;i++)
87
in_float[i]=in_short[i];
88
speex_bits_reset(&bits);
90
speex_encode_int(st, in_short, &bits);
91
nbBits = speex_bits_write(&bits, cbits, 200);
92
bitCount+=bits.nbBits;
95
fwrite(cbits, 1, nbBits, fbits);
96
speex_bits_rewind(&bits);
98
speex_decode_int(dec, &bits, out_short);
99
speex_bits_reset(&bits);
101
fwrite(&out_short[skip_group_delay], sizeof(short), FRAME_SIZE-skip_group_delay, fout);
102
skip_group_delay = 0;
104
fprintf (stderr, "Total encoded size: %d bits\n", bitCount);
105
speex_encoder_destroy(st);
106
speex_decoder_destroy(dec);
111
while ( FRAME_SIZE == fread(in_short, sizeof(short), FRAME_SIZE, fin)
113
FRAME_SIZE == fread(out_short, sizeof(short), FRAME_SIZE,fout) )
116
for (i=0;i<FRAME_SIZE;++i) {
117
s += (float)in_short[i] * in_short[i];
118
e += ((float)in_short[i]-out_short[i]) * ((float)in_short[i]-out_short[i]);
120
seg_snr += 10*log10((s+1)/(e+1));
128
snr = 10 * log10( sigpow / errpow );
129
seg_snr /= snr_frames;
130
fprintf(stderr,"SNR = %f\nsegmental SNR = %f\n",snr, seg_snr);
133
printf ("Total: %f MIPS\n", (float)(1e-6*50*spx_mips/snr_frames));