133    int frame_size;           /**< Number of samples processed each time */  member
402 EXPORT SpeexEchoState *speex_echo_state_init(int frame_size, int filter_length)  in speex_echo_state_init()  argument
404    return speex_echo_state_init_mc(frame_size, filter_length, 1, 1);  in speex_echo_state_init()
407 EXPORT SpeexEchoState *speex_echo_state_init_mc(int frame_size, int filter_length, int nb_mic, int …  in speex_echo_state_init_mc()  argument
424    st->frame_size = frame_size;  in speex_echo_state_init_mc()
425    st->window_size = 2*frame_size;  in speex_echo_state_init_mc()
427    M = st->M = (filter_length+st->frame_size-1)/frame_size;  in speex_echo_state_init_mc()
434    st->spec_average = DIV32_16(SHL32(EXTEND32(st->frame_size), 15), st->sampling_rate);  in speex_echo_state_init_mc()
436    st->beta0 = DIV32_16(SHL32(EXTEND32(st->frame_size), 16), st->sampling_rate);  in speex_echo_state_init_mc()
437    st->beta_max = DIV32_16(SHL32(EXTEND32(st->frame_size), 14), st->sampling_rate);  in speex_echo_state_init_mc()
439    st->beta0 = (2.0f*st->frame_size)/st->sampling_rate;  in speex_echo_state_init_mc()
440    st->beta_max = (.5f*st->frame_size)/st->sampling_rate;  in speex_echo_state_init_mc()
448    st->input = (spx_word16_t*)speex_alloc(C*st->frame_size*sizeof(spx_word16_t));  in speex_echo_state_init_mc()
451    st->Yf = (spx_word32_t*)speex_alloc((st->frame_size+1)*sizeof(spx_word32_t));  in speex_echo_state_init_mc()
452    st->Rf = (spx_word32_t*)speex_alloc((st->frame_size+1)*sizeof(spx_word32_t));  in speex_echo_state_init_mc()
453    st->Xf = (spx_word32_t*)speex_alloc((st->frame_size+1)*sizeof(spx_word32_t));  in speex_echo_state_init_mc()
454    st->Yh = (spx_word32_t*)speex_alloc((st->frame_size+1)*sizeof(spx_word32_t));  in speex_echo_state_init_mc()
455    st->Eh = (spx_word32_t*)speex_alloc((st->frame_size+1)*sizeof(spx_word32_t));  in speex_echo_state_init_mc()
465    st->power = (spx_word32_t*)speex_alloc((frame_size+1)*sizeof(spx_word32_t));  in speex_echo_state_init_mc()
466    st->power_1 = (spx_float_t*)speex_alloc((frame_size+1)*sizeof(spx_float_t));  in speex_echo_state_init_mc()
481    for (i=0;i<=st->frame_size;i++)  in speex_echo_state_init_mc()
522 … st->play_buf = (spx_int16_t*)speex_alloc(K*(PLAYBACK_DELAY+1)*st->frame_size*sizeof(spx_int16_t));  in speex_echo_state_init_mc()
523    st->play_buf_pos = PLAYBACK_DELAY*st->frame_size;  in speex_echo_state_init_mc()
547    for (i=0;i<=st->frame_size;i++)  in speex_echo_state_reset()
554    for (i=0;i<st->frame_size;i++)  in speex_echo_state_reset()
581    for (i=0;i<3*st->frame_size;i++)  in speex_echo_state_reset()
583    st->play_buf_pos = PLAYBACK_DELAY*st->frame_size;  in speex_echo_state_reset()
641    if (st->play_buf_pos>=st->frame_size)  in speex_echo_capture()
644       st->play_buf_pos -= st->frame_size;  in speex_echo_capture()
646          st->play_buf[i] = st->play_buf[i+st->frame_size];  in speex_echo_capture()
654       for (i=0;i<st->frame_size;i++)  in speex_echo_capture()
667    if (st->play_buf_pos<=PLAYBACK_DELAY*st->frame_size)  in speex_echo_playback()
670       for (i=0;i<st->frame_size;i++)  in speex_echo_playback()
672       st->play_buf_pos += st->frame_size;  in speex_echo_playback()
673       if (st->play_buf_pos <= (PLAYBACK_DELAY-1)*st->frame_size)  in speex_echo_playback()
676          for (i=0;i<st->frame_size;i++)  in speex_echo_playback()
678          st->play_buf_pos += st->frame_size;  in speex_echo_playback()
725 …filter_dc_notch16(in+chan, st->notch_radius, st->input+chan*st->frame_size, st->frame_size, st->no…  in speex_echo_cancellation()
728       for (i=0;i<st->frame_size;i++)  in speex_echo_cancellation()
732 …tmp32 = SUB32(EXTEND32(st->input[chan*st->frame_size+i]), EXTEND32(MULT16_16_P15(st->preemph, st->…  in speex_echo_cancellation()
747          st->memD[chan] = st->input[chan*st->frame_size+i];  in speex_echo_cancellation()
748          st->input[chan*st->frame_size+i] = EXTRACT16(tmp32);  in speex_echo_cancellation()
754       for (i=0;i<st->frame_size;i++)  in speex_echo_cancellation()
757          st->x[speak*N+i] = st->x[speak*N+i+st->frame_size];  in speex_echo_cancellation()
772          st->x[speak*N+i+st->frame_size] = EXTRACT16(tmp32);  in speex_echo_cancellation()
792 … Sxx += mdf_inner_prod(st->x+speak*N+st->frame_size, st->x+speak*N+st->frame_size, st->frame_size);  in speex_echo_cancellation()
803       for (i=0;i<st->frame_size;i++)  in speex_echo_cancellation()
804          st->e[chan*N+i] = SUB16(st->input[chan*st->frame_size+i], st->e[chan*N+i+st->frame_size]);  in speex_echo_cancellation()
805       Sff += mdf_inner_prod(st->e+chan*N, st->e+chan*N, st->frame_size);  in speex_echo_cancellation()
848                for (i=0;i<st->frame_size;i++)  in speex_echo_cancellation()
852                for (i=st->frame_size;i<N;i++)  in speex_echo_cancellation()
862                for (i=st->frame_size;i<N;i++)  in speex_echo_cancellation()
874    for (i=0;i<=st->frame_size;i++)  in speex_echo_cancellation()
885       for (i=0;i<st->frame_size;i++)  in speex_echo_cancellation()
886          st->e[chan*N+i] = SUB16(st->e[chan*N+i+st->frame_size], st->y[chan*N+i+st->frame_size]);  in speex_echo_cancellation()
887       Dbf += 10+mdf_inner_prod(st->e+chan*N, st->e+chan*N, st->frame_size);  in speex_echo_cancellation()
888       for (i=0;i<st->frame_size;i++)  in speex_echo_cancellation()
889          st->e[chan*N+i] = SUB16(st->input[chan*st->frame_size+i], st->y[chan*N+i+st->frame_size]);  in speex_echo_cancellation()
890       See += mdf_inner_prod(st->e+chan*N, st->e+chan*N, st->frame_size);  in speex_echo_cancellation()
934          for (i=0;i<st->frame_size;i++)  in speex_echo_cancellation()
935 …->frame_size] = MULT16_16_Q15(st->window[i+st->frame_size],st->e[chan*N+i+st->frame_size]) + MULT1…  in speex_echo_cancellation()
953             for (i=0;i<st->frame_size;i++)  in speex_echo_cancellation()
954                st->y[chan*N+i+st->frame_size] = st->e[chan*N+i+st->frame_size];  in speex_echo_cancellation()
955             for (i=0;i<st->frame_size;i++)  in speex_echo_cancellation()
956 …         st->e[chan*N+i] = SUB16(st->input[chan*st->frame_size+i], st->y[chan*N+i+st->frame_size]);  in speex_echo_cancellation()
969       for (i=0;i<st->frame_size;i++)  in speex_echo_cancellation()
973 …tmp_out = SUB32(EXTEND32(st->input[chan*st->frame_size+i]), EXTEND32(st->e[chan*N+i+st->frame_size…  in speex_echo_cancellation()
975 …tmp_out = SUB32(EXTEND32(st->input[chan*st->frame_size+i]), EXTEND32(st->y[chan*N+i+st->frame_size…  in speex_echo_cancellation()
989       dump_audio(in, far_end, out, st->frame_size);  in speex_echo_cancellation()
993       for (i=0;i<st->frame_size;i++)  in speex_echo_cancellation()
995          st->e[chan*N+i+st->frame_size] = st->e[chan*N+i];  in speex_echo_cancellation()
1001 …   Sey += mdf_inner_prod(st->e+chan*N+st->frame_size, st->y+chan*N+st->frame_size, st->frame_size);  in speex_echo_cancellation()
1002 …   Syy += mdf_inner_prod(st->y+chan*N+st->frame_size, st->y+chan*N+st->frame_size, st->frame_size);  in speex_echo_cancellation()
1003 …Sdd += mdf_inner_prod(st->input+chan*st->frame_size, st->input+chan*st->frame_size, st->frame_size…  in speex_echo_cancellation()
1007       for (i=0;i<st->frame_size;i++)  in speex_echo_cancellation()
1028       for (i=0;i<st->frame_size*C;i++)  in speex_echo_cancellation()
1050 … Sxx += mdf_inner_prod(st->x+speak*N+st->frame_size, st->x+speak*N+st->frame_size, st->frame_size);  in speex_echo_cancellation()
1056    for (j=0;j<=st->frame_size;j++)  in speex_echo_cancellation()
1060    for (j=st->frame_size;j>=0;j--)  in speex_echo_cancellation()
1138       for (i=0;i<=st->frame_size;i++)  in speex_echo_cancellation()
1171       for (i=0;i<=st->frame_size;i++)  in speex_echo_cancellation()
1180       for (i=0;i<st->frame_size;i++)  in speex_echo_cancellation()
1181          st->last_y[i] = st->last_y[st->frame_size+i];  in speex_echo_cancellation()
1185       for (i=0;i<st->frame_size;i++)  in speex_echo_cancellation()
1186          st->last_y[st->frame_size+i] = in[i]-out[i];  in speex_echo_cancellation()
1224    for (i=0;i<=st->frame_size;i++)  in speex_echo_get_residual()
1235          (*(int*)ptr) = st->frame_size;  in speex_echo_ctl()
1239          st->spec_average = DIV32_16(SHL32(EXTEND32(st->frame_size), 15), st->sampling_rate);  in speex_echo_ctl()
1241          st->beta0 = DIV32_16(SHL32(EXTEND32(st->frame_size), 16), st->sampling_rate);  in speex_echo_ctl()
1242          st->beta_max = DIV32_16(SHL32(EXTEND32(st->frame_size), 14), st->sampling_rate);  in speex_echo_ctl()
1244          st->beta0 = (2.0f*st->frame_size)/st->sampling_rate;  in speex_echo_ctl()
1245          st->beta_max = (.5f*st->frame_size)/st->sampling_rate;  in speex_echo_ctl()
1259          *((spx_int32_t *)ptr) = st->M * st->frame_size;  in speex_echo_ctl()
1263          int M = st->M, N = st->window_size, n = st->frame_size, i, j;  in speex_echo_ctl()