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avfilter/af_aiir: refactor code so it uses IIRChannel struct
Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol
parent
ded409b7c9
commit
e9edd61965
@ -42,6 +42,15 @@ typedef struct BiquadContext {
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double o1, o2;
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} BiquadContext;
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typedef struct IIRChannel {
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int nb_ab[2];
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double *ab[2];
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double g;
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double *cache[2];
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BiquadContext *biquads;
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int clippings;
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} IIRChannel;
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typedef struct AudioIIRContext {
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const AVClass *class;
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char *a_str, *b_str, *g_str;
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@ -50,12 +59,7 @@ typedef struct AudioIIRContext {
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int process;
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int precision;
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int *nb_a, *nb_b;
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double **a, **b;
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double *g;
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double **input, **output;
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BiquadContext **biquads;
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int *clippings;
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IIRChannel *iir;
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int channels;
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enum AVSampleFormat sample_format;
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@ -103,12 +107,13 @@ static int iir_ch_## name(AVFilterContext *ctx, void *arg, int ch, int nb_jobs)
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ThreadData *td = arg; \
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AVFrame *in = td->in, *out = td->out; \
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const type *src = (const type *)in->extended_data[ch]; \
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double *ic = (double *)s->input[ch]; \
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double *oc = (double *)s->output[ch]; \
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const int nb_a = s->nb_a[ch]; \
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const int nb_b = s->nb_b[ch]; \
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const double *a = s->a[ch]; \
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const double *b = s->b[ch]; \
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double *ic = (double *)s->iir[ch].cache[0]; \
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double *oc = (double *)s->iir[ch].cache[1]; \
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const int nb_a = s->iir[ch].nb_ab[0]; \
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const int nb_b = s->iir[ch].nb_ab[1]; \
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const double *a = s->iir[ch].ab[0]; \
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const double *b = s->iir[ch].ab[1]; \
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int *clippings = &s->iir[ch].clippings; \
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type *dst = (type *)out->extended_data[ch]; \
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int n; \
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\
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@ -128,10 +133,10 @@ static int iir_ch_## name(AVFilterContext *ctx, void *arg, int ch, int nb_jobs)
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oc[0] = sample; \
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sample *= og; \
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if (need_clipping && sample < min) { \
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s->clippings[ch]++; \
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*clippings++; \
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dst[n] = min; \
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} else if (need_clipping && sample > max) { \
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s->clippings[ch]++; \
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*clippings++; \
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dst[n] = max; \
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} else { \
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dst[n] = sample; \
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@ -156,19 +161,21 @@ static int iir_ch_serial_## name(AVFilterContext *ctx, void *arg, int ch, int nb
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AVFrame *in = td->in, *out = td->out; \
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const type *src = (const type *)in->extended_data[ch]; \
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type *dst = (type *)out->extended_data[ch]; \
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int nb_biquads = (FFMAX(s->nb_a[ch], s->nb_b[ch]) + 1) / 2; \
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IIRChannel *iir = &s->iir[ch]; \
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int *clippings = &iir->clippings; \
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int nb_biquads = (FFMAX(iir->nb_ab[0], iir->nb_ab[1]) + 1) / 2; \
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int n, i; \
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\
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for (i = 0; i < nb_biquads; i++) { \
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const double a1 = -s->biquads[ch][i].a1; \
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const double a2 = -s->biquads[ch][i].a2; \
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const double b0 = s->biquads[ch][i].b0; \
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const double b1 = s->biquads[ch][i].b1; \
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const double b2 = s->biquads[ch][i].b2; \
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double i1 = s->biquads[ch][i].i1; \
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double i2 = s->biquads[ch][i].i2; \
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double o1 = s->biquads[ch][i].o1; \
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double o2 = s->biquads[ch][i].o2; \
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const double a1 = -iir->biquads[i].a1; \
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const double a2 = -iir->biquads[i].a2; \
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const double b0 = iir->biquads[i].b0; \
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const double b1 = iir->biquads[i].b1; \
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const double b2 = iir->biquads[i].b2; \
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double i1 = iir->biquads[i].i1; \
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double i2 = iir->biquads[i].i2; \
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double o1 = iir->biquads[i].o1; \
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double o2 = iir->biquads[i].o2; \
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\
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for (n = 0; n < in->nb_samples; n++) { \
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double sample = ig * (i ? dst[n] : src[n]); \
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@ -181,19 +188,19 @@ static int iir_ch_serial_## name(AVFilterContext *ctx, void *arg, int ch, int nb
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o0 *= og; \
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\
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if (need_clipping && o0 < min) { \
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s->clippings[ch]++; \
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*clippings++; \
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dst[n] = min; \
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} else if (need_clipping && o0 > max) { \
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s->clippings[ch]++; \
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*clippings++; \
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dst[n] = max; \
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} else { \
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dst[n] = o0; \
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} \
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} \
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s->biquads[ch][i].i1 = i1; \
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s->biquads[ch][i].i2 = i2; \
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s->biquads[ch][i].o1 = o1; \
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s->biquads[ch][i].o2 = o2; \
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iir->biquads[i].i1 = i1; \
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iir->biquads[i].i2 = i2; \
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iir->biquads[i].o1 = o1; \
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iir->biquads[i].o2 = o2; \
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} \
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\
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return 0; \
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@ -218,8 +225,9 @@ static void count_coefficients(char *item_str, int *nb_items)
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}
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}
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static int read_gains(AVFilterContext *ctx, char *item_str, int nb_items, double *dst)
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static int read_gains(AVFilterContext *ctx, char *item_str, int nb_items)
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{
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AudioIIRContext *s = ctx->priv;
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char *p, *arg, *old_str, *prev_arg = NULL, *saveptr = NULL;
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int i;
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@ -236,7 +244,7 @@ static int read_gains(AVFilterContext *ctx, char *item_str, int nb_items, double
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}
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p = NULL;
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if (sscanf(arg, "%lf", &dst[i]) != 1) {
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if (sscanf(arg, "%lf", &s->iir[i].g) != 1) {
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av_log(ctx, AV_LOG_ERROR, "Invalid gains supplied: %s\n", arg);
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av_freep(&old_str);
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return AVERROR(EINVAL);
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@ -300,7 +308,7 @@ static int read_zp_coefficients(AVFilterContext *ctx, char *item_str, int nb_ite
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return 0;
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}
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static int read_channels(AVFilterContext *ctx, int channels, uint8_t *item_str, int *nb, double **c, double **cache)
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static int read_channels(AVFilterContext *ctx, int channels, uint8_t *item_str, int ab)
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{
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AudioIIRContext *s = ctx->priv;
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char *p, *arg, *old_str, *prev_arg = NULL, *saveptr = NULL;
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@ -310,6 +318,8 @@ static int read_channels(AVFilterContext *ctx, int channels, uint8_t *item_str,
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if (!p)
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return AVERROR(ENOMEM);
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for (i = 0; i < channels; i++) {
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IIRChannel *iir = &s->iir[i];
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if (!(arg = av_strtok(p, "|", &saveptr)))
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arg = prev_arg;
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@ -318,20 +328,20 @@ static int read_channels(AVFilterContext *ctx, int channels, uint8_t *item_str,
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return AVERROR(EINVAL);
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}
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count_coefficients(arg, &nb[i]);
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count_coefficients(arg, &iir->nb_ab[ab]);
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p = NULL;
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cache[i] = av_calloc(nb[i] + 1, sizeof(double));
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c[i] = av_calloc(nb[i] * (s->format + 1), sizeof(double));
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if (!c[i] || !cache[i]) {
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iir->cache[ab] = av_calloc(iir->nb_ab[ab] + 1, sizeof(double));
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iir->ab[ab] = av_calloc(iir->nb_ab[ab] * (s->format + 1), sizeof(double));
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if (!iir->ab[ab] || !iir->cache[ab]) {
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av_freep(&old_str);
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return AVERROR(ENOMEM);
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}
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if (s->format) {
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ret = read_zp_coefficients(ctx, arg, nb[i], c[i]);
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ret = read_zp_coefficients(ctx, arg, iir->nb_ab[ab], iir->ab[ab]);
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} else {
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ret = read_tf_coefficients(ctx, arg, nb[i], c[i]);
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ret = read_tf_coefficients(ctx, arg, iir->nb_ab[ab], iir->ab[ab]);
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}
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if (ret < 0) {
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av_freep(&old_str);
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@ -397,36 +407,37 @@ static int convert_zp2tf(AVFilterContext *ctx, int channels)
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int ch, i, j, ret;
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for (ch = 0; ch < channels; ch++) {
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IIRChannel *iir = &s->iir[ch];
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double *topc, *botc;
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topc = av_calloc((s->nb_b[ch] + 1) * 2, sizeof(*topc));
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botc = av_calloc((s->nb_a[ch] + 1) * 2, sizeof(*botc));
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topc = av_calloc((iir->nb_ab[0] + 1) * 2, sizeof(*topc));
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botc = av_calloc((iir->nb_ab[1] + 1) * 2, sizeof(*botc));
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if (!topc || !botc)
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return AVERROR(ENOMEM);
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ret = expand(ctx, s->a[ch], s->nb_a[ch], botc);
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ret = expand(ctx, iir->ab[0], iir->nb_ab[0], botc);
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if (ret < 0) {
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av_free(topc);
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av_free(botc);
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return ret;
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}
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ret = expand(ctx, s->b[ch], s->nb_b[ch], topc);
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ret = expand(ctx, iir->ab[1], iir->nb_ab[1], topc);
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if (ret < 0) {
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av_free(topc);
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av_free(botc);
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return ret;
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}
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for (j = 0, i = s->nb_b[ch]; i >= 0; j++, i--) {
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s->b[ch][j] = topc[2 * i];
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for (j = 0, i = iir->nb_ab[1]; i >= 0; j++, i--) {
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iir->ab[1][j] = topc[2 * i];
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}
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s->nb_b[ch]++;
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iir->nb_ab[1]++;
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for (j = 0, i = s->nb_a[ch]; i >= 0; j++, i--) {
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s->a[ch][j] = botc[2 * i];
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for (j = 0, i = iir->nb_ab[0]; i >= 0; j++, i--) {
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iir->ab[0][j] = botc[2 * i];
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}
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s->nb_a[ch]++;
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iir->nb_ab[0]++;
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av_free(topc);
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av_free(botc);
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@ -441,11 +452,12 @@ static int decompose_zp2biquads(AVFilterContext *ctx, int channels)
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int ch, ret;
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for (ch = 0; ch < channels; ch++) {
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int nb_biquads = (FFMAX(s->nb_a[ch], s->nb_b[ch]) + 1) / 2;
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IIRChannel *iir = &s->iir[ch];
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int nb_biquads = (FFMAX(iir->nb_ab[0], iir->nb_ab[1]) + 1) / 2;
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int current_biquad = 0;
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s->biquads[ch] = av_calloc(nb_biquads, sizeof(BiquadContext));
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if (!s->biquads[ch])
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iir->biquads = av_calloc(nb_biquads, sizeof(BiquadContext));
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if (!iir->biquads)
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return AVERROR(ENOMEM);
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while (nb_biquads--) {
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@ -459,12 +471,12 @@ static int decompose_zp2biquads(AVFilterContext *ctx, int channels)
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double max_mag = 0;
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int i;
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for (i = 0; i < s->nb_a[ch]; i++) {
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for (i = 0; i < iir->nb_ab[0]; i++) {
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double mag;
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if (isnan(s->a[ch][2 * i]) || isnan(s->a[ch][2 * i + 1]))
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if (isnan(iir->ab[0][2 * i]) || isnan(iir->ab[0][2 * i + 1]))
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continue;
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mag = hypot(s->a[ch][2 * i], s->a[ch][2 * i + 1]);
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mag = hypot(iir->ab[0][2 * i], iir->ab[0][2 * i + 1]);
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if (mag > max_mag) {
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max_mag = mag;
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@ -472,12 +484,12 @@ static int decompose_zp2biquads(AVFilterContext *ctx, int channels)
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}
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}
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for (i = 0; i < s->nb_a[ch]; i++) {
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if (isnan(s->a[ch][2 * i]) || isnan(s->a[ch][2 * i + 1]))
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for (i = 0; i < iir->nb_ab[1]; i++) {
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if (isnan(iir->ab[0][2 * i]) || isnan(iir->ab[0][2 * i + 1]))
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continue;
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if (s->a[ch][2 * i ] == s->a[ch][2 * outmost_pole.a ] &&
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s->a[ch][2 * i + 1] == -s->a[ch][2 * outmost_pole.a + 1]) {
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if (iir->ab[0][2 * i ] == iir->ab[0][2 * outmost_pole.a ] &&
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iir->ab[0][2 * i + 1] == -iir->ab[0][2 * outmost_pole.a + 1]) {
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outmost_pole.b = i;
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break;
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}
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@ -488,13 +500,13 @@ static int decompose_zp2biquads(AVFilterContext *ctx, int channels)
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if (outmost_pole.a < 0 || outmost_pole.b < 0)
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return AVERROR(EINVAL);
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for (i = 0; i < s->nb_b[ch]; i++) {
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for (i = 0; i < iir->nb_ab[1]; i++) {
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double distance;
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if (isnan(s->b[ch][2 * i]) || isnan(s->b[ch][2 * i + 1]))
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if (isnan(iir->ab[1][2 * i]) || isnan(iir->ab[1][2 * i + 1]))
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continue;
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distance = hypot(s->a[ch][2 * outmost_pole.a ] - s->b[ch][2 * i ],
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s->a[ch][2 * outmost_pole.a + 1] - s->b[ch][2 * i + 1]);
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distance = hypot(iir->ab[0][2 * outmost_pole.a ] - iir->ab[1][2 * i ],
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iir->ab[0][2 * outmost_pole.a + 1] - iir->ab[1][2 * i + 1]);
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if (distance < min_distance) {
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min_distance = distance;
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@ -502,12 +514,12 @@ static int decompose_zp2biquads(AVFilterContext *ctx, int channels)
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}
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}
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for (i = 0; i < s->nb_b[ch]; i++) {
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if (isnan(s->b[ch][2 * i]) || isnan(s->b[ch][2 * i + 1]))
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for (i = 0; i < iir->nb_ab[1]; i++) {
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if (isnan(iir->ab[1][2 * i]) || isnan(iir->ab[1][2 * i + 1]))
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continue;
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if (s->b[ch][2 * i ] == s->b[ch][2 * nearest_zero.a ] &&
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s->b[ch][2 * i + 1] == -s->b[ch][2 * nearest_zero.a + 1]) {
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if (iir->ab[1][2 * i ] == iir->ab[1][2 * nearest_zero.a ] &&
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iir->ab[1][2 * i + 1] == -iir->ab[1][2 * nearest_zero.a + 1]) {
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nearest_zero.b = i;
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break;
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}
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@ -518,11 +530,11 @@ static int decompose_zp2biquads(AVFilterContext *ctx, int channels)
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if (nearest_zero.a < 0 || nearest_zero.b < 0)
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return AVERROR(EINVAL);
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poles[0] = s->a[ch][2 * outmost_pole.a ];
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poles[1] = s->a[ch][2 * outmost_pole.a + 1];
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poles[0] = iir->ab[0][2 * outmost_pole.a ];
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poles[1] = iir->ab[0][2 * outmost_pole.a + 1];
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zeros[0] = s->b[ch][2 * nearest_zero.a ];
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zeros[1] = s->b[ch][2 * nearest_zero.a + 1];
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zeros[0] = iir->ab[1][2 * nearest_zero.a ];
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zeros[1] = iir->ab[1][2 * nearest_zero.a + 1];
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if (nearest_zero.a == nearest_zero.b && outmost_pole.a == outmost_pole.b) {
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zeros[2] = 0;
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@ -531,11 +543,11 @@ static int decompose_zp2biquads(AVFilterContext *ctx, int channels)
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poles[2] = 0;
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poles[3] = 0;
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} else {
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poles[2] = s->a[ch][2 * outmost_pole.b ];
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poles[3] = s->a[ch][2 * outmost_pole.b + 1];
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poles[2] = iir->ab[0][2 * outmost_pole.b ];
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poles[3] = iir->ab[0][2 * outmost_pole.b + 1];
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zeros[2] = s->b[ch][2 * nearest_zero.b ];
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zeros[3] = s->b[ch][2 * nearest_zero.b + 1];
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zeros[2] = iir->ab[1][2 * nearest_zero.b ];
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zeros[3] = iir->ab[1][2 * nearest_zero.b + 1];
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}
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ret = expand(ctx, zeros, 2, b);
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@ -546,25 +558,25 @@ static int decompose_zp2biquads(AVFilterContext *ctx, int channels)
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if (ret < 0)
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return ret;
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s->a[ch][2 * outmost_pole.a] = s->a[ch][2 * outmost_pole.a + 1] = NAN;
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s->a[ch][2 * outmost_pole.b] = s->a[ch][2 * outmost_pole.b + 1] = NAN;
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s->b[ch][2 * nearest_zero.a] = s->b[ch][2 * nearest_zero.a + 1] = NAN;
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s->b[ch][2 * nearest_zero.b] = s->b[ch][2 * nearest_zero.b + 1] = NAN;
|
||||
iir->ab[0][2 * outmost_pole.a] = iir->ab[0][2 * outmost_pole.a + 1] = NAN;
|
||||
iir->ab[0][2 * outmost_pole.b] = iir->ab[0][2 * outmost_pole.b + 1] = NAN;
|
||||
iir->ab[1][2 * nearest_zero.a] = iir->ab[1][2 * nearest_zero.a + 1] = NAN;
|
||||
iir->ab[1][2 * nearest_zero.b] = iir->ab[1][2 * nearest_zero.b + 1] = NAN;
|
||||
|
||||
s->biquads[ch][current_biquad].a0 = 1.0;
|
||||
s->biquads[ch][current_biquad].a1 = a[2] / a[4];
|
||||
s->biquads[ch][current_biquad].a2 = a[0] / a[4];
|
||||
s->biquads[ch][current_biquad].b0 = b[4] / a[4] * (current_biquad ? 1.0 : s->g[ch]);
|
||||
s->biquads[ch][current_biquad].b1 = b[2] / a[4] * (current_biquad ? 1.0 : s->g[ch]);
|
||||
s->biquads[ch][current_biquad].b2 = b[0] / a[4] * (current_biquad ? 1.0 : s->g[ch]);
|
||||
iir->biquads[current_biquad].a0 = 1.0;
|
||||
iir->biquads[current_biquad].a1 = a[2] / a[4];
|
||||
iir->biquads[current_biquad].a2 = a[0] / a[4];
|
||||
iir->biquads[current_biquad].b0 = b[4] / a[4] * (current_biquad ? 1.0 : iir->g);
|
||||
iir->biquads[current_biquad].b1 = b[2] / a[4] * (current_biquad ? 1.0 : iir->g);
|
||||
iir->biquads[current_biquad].b2 = b[0] / a[4] * (current_biquad ? 1.0 : iir->g);
|
||||
|
||||
av_log(ctx, AV_LOG_VERBOSE, "a=%lf %lf %lf:b=%lf %lf %lf\n",
|
||||
s->biquads[ch][current_biquad].a0,
|
||||
s->biquads[ch][current_biquad].a1,
|
||||
s->biquads[ch][current_biquad].a2,
|
||||
s->biquads[ch][current_biquad].b0,
|
||||
s->biquads[ch][current_biquad].b1,
|
||||
s->biquads[ch][current_biquad].b2);
|
||||
iir->biquads[current_biquad].a0,
|
||||
iir->biquads[current_biquad].a1,
|
||||
iir->biquads[current_biquad].a2,
|
||||
iir->biquads[current_biquad].b0,
|
||||
iir->biquads[current_biquad].b1,
|
||||
iir->biquads[current_biquad].b2);
|
||||
|
||||
current_biquad++;
|
||||
}
|
||||
@ -581,26 +593,19 @@ static int config_output(AVFilterLink *outlink)
|
||||
int ch, ret, i;
|
||||
|
||||
s->channels = inlink->channels;
|
||||
s->a = av_calloc(inlink->channels, sizeof(*s->a));
|
||||
s->b = av_calloc(inlink->channels, sizeof(*s->b));
|
||||
s->g = av_calloc(inlink->channels, sizeof(*s->g));
|
||||
s->nb_a = av_calloc(inlink->channels, sizeof(*s->nb_a));
|
||||
s->nb_b = av_calloc(inlink->channels, sizeof(*s->nb_b));
|
||||
s->input = av_calloc(inlink->channels, sizeof(*s->input));
|
||||
s->output = av_calloc(inlink->channels, sizeof(*s->output));
|
||||
s->clippings = av_calloc(inlink->channels, sizeof(*s->clippings));
|
||||
if (!s->a || !s->b || !s->nb_a || !s->nb_b || !s->input || !s->output || !s->clippings)
|
||||
s->iir = av_calloc(s->channels, sizeof(*s->iir));
|
||||
if (!s->iir)
|
||||
return AVERROR(ENOMEM);
|
||||
|
||||
ret = read_gains(ctx, s->g_str, inlink->channels, s->g);
|
||||
ret = read_gains(ctx, s->g_str, inlink->channels);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
|
||||
ret = read_channels(ctx, inlink->channels, s->a_str, s->nb_a, s->a, s->output);
|
||||
ret = read_channels(ctx, inlink->channels, s->a_str, 0);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
|
||||
ret = read_channels(ctx, inlink->channels, s->b_str, s->nb_b, s->b, s->input);
|
||||
ret = read_channels(ctx, inlink->channels, s->b_str, 1);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
|
||||
@ -620,21 +625,20 @@ static int config_output(AVFilterLink *outlink)
|
||||
if (inlink->format == AV_SAMPLE_FMT_S16P)
|
||||
av_log(ctx, AV_LOG_WARNING, "Serial cascading is not recommended for i16 precision.\n");
|
||||
|
||||
s->biquads = av_calloc(inlink->channels, sizeof(*s->biquads));
|
||||
if (!s->biquads)
|
||||
return AVERROR(ENOMEM);
|
||||
ret = decompose_zp2biquads(ctx, inlink->channels);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
}
|
||||
|
||||
for (ch = 0; ch < inlink->channels; ch++) {
|
||||
for (i = 1; i < s->nb_a[ch]; i++) {
|
||||
s->a[ch][i] /= s->a[ch][0];
|
||||
IIRChannel *iir = &s->iir[ch];
|
||||
|
||||
for (i = 1; i < iir->nb_ab[0]; i++) {
|
||||
iir->ab[0][i] /= iir->ab[0][0];
|
||||
}
|
||||
|
||||
for (i = 0; i < s->nb_b[ch]; i++) {
|
||||
s->b[ch][i] *= s->g[ch] / s->a[ch][0];
|
||||
for (i = 0; i < iir->nb_ab[1]; i++) {
|
||||
iir->ab[1][i] *= iir->g / iir->ab[0][0];
|
||||
}
|
||||
}
|
||||
|
||||
@ -673,9 +677,10 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in)
|
||||
ctx->internal->execute(ctx, s->iir_channel, &td, NULL, outlink->channels);
|
||||
|
||||
for (ch = 0; ch < outlink->channels; ch++) {
|
||||
if (s->clippings[ch] > 0)
|
||||
av_log(ctx, AV_LOG_WARNING, "Channel %d clipping %d times. Please reduce gain.\n", ch, s->clippings[ch]);
|
||||
s->clippings[ch] = 0;
|
||||
if (s->iir[ch].clippings > 0)
|
||||
av_log(ctx, AV_LOG_WARNING, "Channel %d clipping %d times. Please reduce gain.\n",
|
||||
ch, s->iir[ch].clippings);
|
||||
s->iir[ch].clippings = 0;
|
||||
}
|
||||
|
||||
if (in != out)
|
||||
@ -709,37 +714,17 @@ static av_cold void uninit(AVFilterContext *ctx)
|
||||
AudioIIRContext *s = ctx->priv;
|
||||
int ch;
|
||||
|
||||
if (s->a) {
|
||||
if (s->iir) {
|
||||
for (ch = 0; ch < s->channels; ch++) {
|
||||
av_freep(&s->a[ch]);
|
||||
av_freep(&s->output[ch]);
|
||||
IIRChannel *iir = &s->iir[ch];
|
||||
av_freep(&iir->ab[0]);
|
||||
av_freep(&iir->ab[1]);
|
||||
av_freep(&iir->cache[0]);
|
||||
av_freep(&iir->cache[1]);
|
||||
av_freep(&iir->biquads);
|
||||
}
|
||||
}
|
||||
av_freep(&s->a);
|
||||
|
||||
if (s->b) {
|
||||
for (ch = 0; ch < s->channels; ch++) {
|
||||
av_freep(&s->b[ch]);
|
||||
av_freep(&s->input[ch]);
|
||||
}
|
||||
}
|
||||
av_freep(&s->b);
|
||||
|
||||
av_freep(&s->g);
|
||||
av_freep(&s->clippings);
|
||||
|
||||
av_freep(&s->input);
|
||||
av_freep(&s->output);
|
||||
|
||||
if (s->biquads) {
|
||||
for (ch = 0; ch < s->channels; ch++) {
|
||||
av_freep(&s->biquads[ch]);
|
||||
}
|
||||
}
|
||||
av_freep(&s->biquads);
|
||||
|
||||
av_freep(&s->nb_a);
|
||||
av_freep(&s->nb_b);
|
||||
av_freep(&s->iir);
|
||||
}
|
||||
|
||||
static const AVFilterPad inputs[] = {
|
||||
|
||||
Loading…
Reference in New Issue
Block a user