diff options
| -rw-r--r-- | libavfilter/af_aiir.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/libavfilter/af_aiir.c b/libavfilter/af_aiir.c index 8900b0a7c4..f5e5dbb036 100644 --- a/libavfilter/af_aiir.c +++ b/libavfilter/af_aiir.c @@ -195,7 +195,7 @@ static int iir_ch_serial_## name(AVFilterContext *ctx, void *arg, \ int nb_biquads = (FFMAX(iir->nb_ab[0], iir->nb_ab[1]) + 1) / 2; \ int n, i; \ \ - for (i = 0; i < nb_biquads; i++) { \ + for (i = nb_biquads - 1; i >= 0; i--) { \ const double a1 = -iir->biquads[i].a[1]; \ const double a2 = -iir->biquads[i].a[2]; \ const double b0 = iir->biquads[i].b[0]; \ @@ -1226,6 +1226,8 @@ static int config_output(AVFilterLink *outlink) if (ret < 0) return ret; } else if (s->format > 0 && s->process == 2) { + if (s->precision > 1) + av_log(ctx, AV_LOG_WARNING, "Parallel processing is not recommended for fixed-point precisions.\n"); ret = decompose_zp2biquads(ctx, inlink->channels); if (ret < 0) return ret; |