ff_celp_lp_synthesis_filterf(work, coefs, exc, BLOCKSIZE, LPC_ORDER);
for (i = 0; i < BLOCKSIZE; i++)
data[i] -= best_gain * work[i];
- return (best_vect - BLOCKSIZE / 2 + 1);
+ return best_vect - BLOCKSIZE / 2 + 1;
}
* The filter is unstable: use the coefficients of the previous frame.
*/
ff_int_to_int16(block_coefs[NBLOCKS - 1], ractx->lpc_coef[1]);
- ff_eval_refl(lpc_refl, block_coefs[NBLOCKS - 1], avctx);
+ if (ff_eval_refl(lpc_refl, block_coefs[NBLOCKS - 1], avctx)) {
+ /* the filter is still unstable. set reflection coeffs to zero. */
+ memset(lpc_refl, 0, sizeof(lpc_refl));
+ }
}
init_put_bits(&pb, frame, buf_size);
for (i = 0; i < LPC_ORDER; i++) {
.init = ra144_encode_init,
.encode = ra144_encode_frame,
.close = ra144_encode_close,
+ .sample_fmts = (const enum AVSampleFormat[]){ AV_SAMPLE_FMT_S16,
+ AV_SAMPLE_FMT_NONE },
.long_name = NULL_IF_CONFIG_SMALL("RealAudio 1.0 (14.4K) encoder"),
};