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Code Issues Releases Activity

avfilter/af_biquads: use correct variables when reversing samples

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Also silence initial block frames.
This commit is contained in:
Paul B Mahol 2022-05-10 09:25:38 +02:00
parent 467f157fc6
commit 38238b604f
1 changed files with 5 additions and 2 deletions
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7
libavfilter/af_biquads.c
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@ -793,6 +793,9 @@ static int config_filter(AVFilterLink *outlink, int reset)
s->block[i] = ff_get_audio_buffer(outlink, s->block_samples * 2); s->block[i] = ff_get_audio_buffer(outlink, s->block_samples * 2);
if (!s->block[i]) if (!s->block[i])
return AVERROR(ENOMEM); return AVERROR(ENOMEM);
av_samples_set_silence(s->block[i]->extended_data, 0, s->block_samples * 2,
s->block[i]->ch_layout.nb_channels, s->block[i]->format);
} }
} }
@ -927,14 +930,14 @@ static void reverse_samples(AVFrame *out, AVFrame *in, int p,
{ {
switch (out->format) { switch (out->format) {
case AV_SAMPLE_FMT_S16P: { case AV_SAMPLE_FMT_S16P: {
const int16_t *src = ((const int16_t *)out->extended_data[p]) + io; const int16_t *src = ((const int16_t *)in->extended_data[p]) + io;
int16_t *dst = ((int16_t *)out->extended_data[p]) + oo; int16_t *dst = ((int16_t *)out->extended_data[p]) + oo;
for (int i = 0, j = nb_samples - 1; i < nb_samples; i++, j--) for (int i = 0, j = nb_samples - 1; i < nb_samples; i++, j--)
dst[i] = src[j]; dst[i] = src[j];
} }
break; break;
case AV_SAMPLE_FMT_S32P: { case AV_SAMPLE_FMT_S32P: {
const int32_t *src = ((const int32_t *)out->extended_data[p]) + io; const int32_t *src = ((const int32_t *)in->extended_data[p]) + io;
int32_t *dst = ((int32_t *)out->extended_data[p]) + oo; int32_t *dst = ((int32_t *)out->extended_data[p]) + oo;
for (int i = 0, j = nb_samples - 1; i < nb_samples; i++, j--) for (int i = 0, j = nb_samples - 1; i < nb_samples; i++, j--)
dst[i] = src[j]; dst[i] = src[j];