void ff_subblock_synthesis(RA144Context *ractx, const int16_t *lpc_coefs, int cba_idx, int cb1_idx, int cb2_idx, int gval, int gain) { int16_t *block; int m[3]; if (cba_idx) { cba_idx += BLOCKSIZE/2 - 1; ff_copy_and_dup(ractx->buffer_a, ractx->adapt_cb, cba_idx); m[0] = (ff_irms(&ractx->adsp, ractx->buffer_a) * gval) >> 12; } else { m[0] = 0; } m[1] = (ff_cb1_base[cb1_idx] * gval) >> 8; m[2] = (ff_cb2_base[cb2_idx] * gval) >> 8; memmove(ractx->adapt_cb, ractx->adapt_cb + BLOCKSIZE, (BUFFERSIZE - BLOCKSIZE) * sizeof(*ractx->adapt_cb)); block = ractx->adapt_cb + BUFFERSIZE - BLOCKSIZE; add_wav(block, gain, cba_idx, m, cba_idx? ractx->buffer_a: NULL, ff_cb1_vects[cb1_idx], ff_cb2_vects[cb2_idx]); memcpy(ractx->curr_sblock, ractx->curr_sblock + BLOCKSIZE, LPC_ORDER*sizeof(*ractx->curr_sblock)); if (ff_celp_lp_synthesis_filter(ractx->curr_sblock + LPC_ORDER, lpc_coefs, block, BLOCKSIZE, LPC_ORDER, 1, 0, 0xfff)) memset(ractx->curr_sblock, 0, (LPC_ORDER+BLOCKSIZE)*sizeof(*ractx->curr_sblock)); }