X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavfilter%2Faf_biquads.c;h=3ec26d2a9d7e52ab9032b22be3f92f49c339ecf0;hb=c5cdec9731b864d4e4bda59a7ad9246967ef99da;hp=86cd10df3b31e1e69e38d4f3c733f1023739ffa0;hpb=06476249cd2332e30b66576633b2827adf3478dd;p=ffmpeg diff --git a/libavfilter/af_biquads.c b/libavfilter/af_biquads.c index 86cd10df3b3..3ec26d2a9d7 100644 --- a/libavfilter/af_biquads.c +++ b/libavfilter/af_biquads.c @@ -93,6 +93,14 @@ enum WidthType { NB_WTYPE, }; +enum TransformType { + DI, + DII, + TDII, + LATT, + NB_TTYPE, +}; + typedef struct ChanCache { double i1, i2; double o1, o2; @@ -106,38 +114,33 @@ typedef struct BiquadsContext { int width_type; int poles; int csg; + int transform_type; + + int bypass; double gain; double frequency; double width; + double mix; uint64_t channels; + int normalize; + int order; double a0, a1, a2; double b0, b1, b2; + double oa0, oa1, oa2; + double ob0, ob1, ob2; + ChanCache *cache; int block_align; void (*filter)(struct BiquadsContext *s, const void *ibuf, void *obuf, int len, double *i1, double *i2, double *o1, double *o2, - double b0, double b1, double b2, double a1, double a2, int *clippings); + double b0, double b1, double b2, double a1, double a2, int *clippings, + int disabled); } BiquadsContext; -static av_cold int init(AVFilterContext *ctx) -{ - BiquadsContext *s = ctx->priv; - - if (s->filter_type != biquad) { - if (s->frequency <= 0 || s->width <= 0) { - av_log(ctx, AV_LOG_ERROR, "Invalid frequency %f and/or width %f <= 0\n", - s->frequency, s->width); - return AVERROR(EINVAL); - } - } - - return 0; -} - static int query_formats(AVFilterContext *ctx) { AVFilterFormats *formats; @@ -177,7 +180,8 @@ static void biquad_## name (BiquadsContext *s, \ double *in1, double *in2, \ double *out1, double *out2, \ double b0, double b1, double b2, \ - double a1, double a2, int *clippings) \ + double a1, double a2, int *clippings, \ + int disabled) \ { \ const type *ibuf = input; \ type *obuf = output; \ @@ -185,6 +189,9 @@ static void biquad_## name (BiquadsContext *s, \ double i2 = *in2; \ double o1 = *out1; \ double o2 = *out2; \ + double wet = s->mix; \ + double dry = 1. - wet; \ + double out; \ int i; \ a1 = -a1; \ a2 = -a2; \ @@ -192,26 +199,32 @@ static void biquad_## name (BiquadsContext *s, \ for (i = 0; i+1 < len; i++) { \ o2 = i2 * b2 + i1 * b1 + ibuf[i] * b0 + o2 * a2 + o1 * a1; \ i2 = ibuf[i]; \ - if (need_clipping && o2 < min) { \ + out = o2 * wet + i2 * dry; \ + if (disabled) { \ + obuf[i] = i2; \ + } else if (need_clipping && out < min) { \ (*clippings)++; \ obuf[i] = min; \ - } else if (need_clipping && o2 > max) { \ + } else if (need_clipping && out > max) { \ (*clippings)++; \ obuf[i] = max; \ } else { \ - obuf[i] = o2; \ + obuf[i] = out; \ } \ i++; \ o1 = i1 * b2 + i2 * b1 + ibuf[i] * b0 + o1 * a2 + o2 * a1; \ i1 = ibuf[i]; \ - if (need_clipping && o1 < min) { \ + out = o1 * wet + i1 * dry; \ + if (disabled) { \ + obuf[i] = i1; \ + } else if (need_clipping && out < min) { \ (*clippings)++; \ obuf[i] = min; \ - } else if (need_clipping && o1 > max) { \ + } else if (need_clipping && out > max) { \ (*clippings)++; \ obuf[i] = max; \ } else { \ - obuf[i] = o1; \ + obuf[i] = out; \ } \ } \ if (i < len) { \ @@ -220,14 +233,17 @@ static void biquad_## name (BiquadsContext *s, \ i1 = ibuf[i]; \ o2 = o1; \ o1 = o0; \ - if (need_clipping && o0 < min) { \ + out = o0 * wet + i1 * dry; \ + if (disabled) { \ + obuf[i] = i1; \ + } else if (need_clipping && out < min) { \ (*clippings)++; \ obuf[i] = min; \ - } else if (need_clipping && o0 > max) { \ + } else if (need_clipping && out > max) { \ (*clippings)++; \ obuf[i] = max; \ } else { \ - obuf[i] = o0; \ + obuf[i] = out; \ } \ } \ *in1 = i1; \ @@ -241,6 +257,173 @@ BIQUAD_FILTER(s32, int32_t, INT32_MIN, INT32_MAX, 1) BIQUAD_FILTER(flt, float, -1., 1., 0) BIQUAD_FILTER(dbl, double, -1., 1., 0) +#define BIQUAD_DII_FILTER(name, type, min, max, need_clipping) \ +static void biquad_dii_## name (BiquadsContext *s, \ + const void *input, void *output, int len, \ + double *z1, double *z2, \ + double *unused1, double *unused2, \ + double b0, double b1, double b2, \ + double a1, double a2, int *clippings, \ + int disabled) \ +{ \ + const type *ibuf = input; \ + type *obuf = output; \ + double w1 = *z1; \ + double w2 = *z2; \ + double wet = s->mix; \ + double dry = 1. - wet; \ + double in, out, w0; \ + \ + a1 = -a1; \ + a2 = -a2; \ + \ + for (int i = 0; i < len; i++) { \ + in = ibuf[i]; \ + w0 = in + a1 * w1 + a2 * w2; \ + out = b0 * w0 + b1 * w1 + b2 * w2; \ + w2 = w1; \ + w1 = w0; \ + out = out * wet + in * dry; \ + if (disabled) { \ + obuf[i] = in; \ + } else if (need_clipping && out < min) { \ + (*clippings)++; \ + obuf[i] = min; \ + } else if (need_clipping && out > max) { \ + (*clippings)++; \ + obuf[i] = max; \ + } else { \ + obuf[i] = out; \ + } \ + } \ + *z1 = w1; \ + *z2 = w2; \ +} + +BIQUAD_DII_FILTER(s16, int16_t, INT16_MIN, INT16_MAX, 1) +BIQUAD_DII_FILTER(s32, int32_t, INT32_MIN, INT32_MAX, 1) +BIQUAD_DII_FILTER(flt, float, -1., 1., 0) +BIQUAD_DII_FILTER(dbl, double, -1., 1., 0) + +#define BIQUAD_TDII_FILTER(name, type, min, max, need_clipping) \ +static void biquad_tdii_## name (BiquadsContext *s, \ + const void *input, void *output, int len, \ + double *z1, double *z2, \ + double *unused1, double *unused2, \ + double b0, double b1, double b2, \ + double a1, double a2, int *clippings, \ + int disabled) \ +{ \ + const type *ibuf = input; \ + type *obuf = output; \ + double w1 = *z1; \ + double w2 = *z2; \ + double wet = s->mix; \ + double dry = 1. - wet; \ + double in, out; \ + \ + a1 = -a1; \ + a2 = -a2; \ + \ + for (int i = 0; i < len; i++) { \ + in = ibuf[i]; \ + out = b0 * in + w1; \ + w1 = b1 * in + w2 + a1 * out; \ + w2 = b2 * in + a2 * out; \ + out = out * wet + in * dry; \ + if (disabled) { \ + obuf[i] = in; \ + } else if (need_clipping && out < min) { \ + (*clippings)++; \ + obuf[i] = min; \ + } else if (need_clipping && out > max) { \ + (*clippings)++; \ + obuf[i] = max; \ + } else { \ + obuf[i] = out; \ + } \ + } \ + *z1 = w1; \ + *z2 = w2; \ +} + +BIQUAD_TDII_FILTER(s16, int16_t, INT16_MIN, INT16_MAX, 1) +BIQUAD_TDII_FILTER(s32, int32_t, INT32_MIN, INT32_MAX, 1) +BIQUAD_TDII_FILTER(flt, float, -1., 1., 0) +BIQUAD_TDII_FILTER(dbl, double, -1., 1., 0) + +#define BIQUAD_LATT_FILTER(name, type, min, max, need_clipping) \ +static void biquad_latt_## name (BiquadsContext *s, \ + const void *input, void *output, int len, \ + double *z1, double *z2, \ + double *unused1, double *unused2, \ + double v0, double v1, double v2, \ + double k0, double k1, int *clippings, \ + int disabled) \ +{ \ + const type *ibuf = input; \ + type *obuf = output; \ + double s0 = *z1; \ + double s1 = *z2; \ + double wet = s->mix; \ + double dry = 1. - wet; \ + double in, out; \ + double t0, t1; \ + \ + for (int i = 0; i < len; i++) { \ + out = 0.; \ + in = ibuf[i]; \ + t0 = in - k1 * s0; \ + t1 = t0 * k1 + s0; \ + out += t1 * v2; \ + \ + t0 = t0 - k0 * s1; \ + t1 = t0 * k0 + s1; \ + out += t1 * v1; \ + \ + out += t0 * v0; \ + s0 = t1; \ + s1 = t0; \ + \ + out = out * wet + in * dry; \ + if (disabled) { \ + obuf[i] = in; \ + } else if (need_clipping && out < min) { \ + (*clippings)++; \ + obuf[i] = min; \ + } else if (need_clipping && out > max) { \ + (*clippings)++; \ + obuf[i] = max; \ + } else { \ + obuf[i] = out; \ + } \ + } \ + *z1 = s0; \ + *z2 = s1; \ +} + +BIQUAD_LATT_FILTER(s16, int16_t, INT16_MIN, INT16_MAX, 1) +BIQUAD_LATT_FILTER(s32, int32_t, INT32_MIN, INT32_MAX, 1) +BIQUAD_LATT_FILTER(flt, float, -1., 1., 0) +BIQUAD_LATT_FILTER(dbl, double, -1., 1., 0) + +static void convert_dir2latt(BiquadsContext *s) +{ + double k0, k1, v0, v1, v2; + + k1 = s->a2; + k0 = s->a1 / (1. + k1); + v2 = s->b2; + v1 = s->b1 - v2 * s->a1; + v0 = s->b0 - v1 * k0 - v2 * k1; + + s->a1 = k0; + s->a2 = k1; + s->b0 = v0; + s->b1 = v1; + s->b2 = v2; +} + static int config_filter(AVFilterLink *outlink, int reset) { AVFilterContext *ctx = outlink->src; @@ -248,15 +431,18 @@ static int config_filter(AVFilterLink *outlink, int reset) AVFilterLink *inlink = ctx->inputs[0]; double A = ff_exp10(s->gain / 40); double w0 = 2 * M_PI * s->frequency / inlink->sample_rate; + double K = tan(w0 / 2.); double alpha, beta; - if (w0 > M_PI) { - av_log(ctx, AV_LOG_ERROR, - "Invalid frequency %f. Frequency must be less than half the sample-rate %d.\n", - s->frequency, inlink->sample_rate); - return AVERROR(EINVAL); + s->bypass = (((w0 > M_PI || w0 <= 0.) && reset) || (s->width <= 0.)) && (s->filter_type != biquad); + if (s->bypass) { + av_log(ctx, AV_LOG_WARNING, "Invalid frequency and/or width!\n"); + return 0; } + if ((w0 > M_PI || w0 <= 0.) && (s->filter_type != biquad)) + return AVERROR(EINVAL); + switch (s->width_type) { case NONE: alpha = 0.0; @@ -284,6 +470,12 @@ static int config_filter(AVFilterLink *outlink, int reset) switch (s->filter_type) { case biquad: + s->a0 = s->oa0; + s->a1 = s->oa1; + s->a2 = s->oa2; + s->b0 = s->ob0; + s->b1 = s->ob1; + s->b2 = s->ob2; break; case equalizer: s->a0 = 1 + alpha / A; @@ -373,12 +565,24 @@ static int config_filter(AVFilterLink *outlink, int reset) } break; case allpass: - s->a0 = 1 + alpha; - s->a1 = -2 * cos(w0); - s->a2 = 1 - alpha; - s->b0 = 1 - alpha; - s->b1 = -2 * cos(w0); - s->b2 = 1 + alpha; + switch (s->order) { + case 1: + s->a0 = 1.; + s->a1 = -(1. - K) / (1. + K); + s->a2 = 0.; + s->b0 = s->a1; + s->b1 = s->a0; + s->b2 = 0.; + break; + case 2: + s->a0 = 1 + alpha; + s->a1 = -2 * cos(w0); + s->a2 = 1 - alpha; + s->b0 = 1 - alpha; + s->b1 = -2 * cos(w0); + s->b2 = 1 + alpha; + break; + } break; default: av_assert0(0); @@ -393,21 +597,97 @@ static int config_filter(AVFilterLink *outlink, int reset) s->b2 /= s->a0; s->a0 /= s->a0; + if (s->normalize && fabs(s->b0 + s->b1 + s->b2) > 1e-6) { + double factor = (s->a0 + s->a1 + s->a2) / (s->b0 + s->b1 + s->b2); + + s->b0 *= factor; + s->b1 *= factor; + s->b2 *= factor; + } + s->cache = av_realloc_f(s->cache, sizeof(ChanCache), inlink->channels); if (!s->cache) return AVERROR(ENOMEM); if (reset) memset(s->cache, 0, sizeof(ChanCache) * inlink->channels); - switch (inlink->format) { - case AV_SAMPLE_FMT_S16P: s->filter = biquad_s16; break; - case AV_SAMPLE_FMT_S32P: s->filter = biquad_s32; break; - case AV_SAMPLE_FMT_FLTP: s->filter = biquad_flt; break; - case AV_SAMPLE_FMT_DBLP: s->filter = biquad_dbl; break; - default: av_assert0(0); - } + switch (s->transform_type) { + case DI: + switch (inlink->format) { + case AV_SAMPLE_FMT_S16P: + s->filter = biquad_s16; + break; + case AV_SAMPLE_FMT_S32P: + s->filter = biquad_s32; + break; + case AV_SAMPLE_FMT_FLTP: + s->filter = biquad_flt; + break; + case AV_SAMPLE_FMT_DBLP: + s->filter = biquad_dbl; + break; + default: av_assert0(0); + } + break; + case DII: + switch (inlink->format) { + case AV_SAMPLE_FMT_S16P: + s->filter = biquad_dii_s16; + break; + case AV_SAMPLE_FMT_S32P: + s->filter = biquad_dii_s32; + break; + case AV_SAMPLE_FMT_FLTP: + s->filter = biquad_dii_flt; + break; + case AV_SAMPLE_FMT_DBLP: + s->filter = biquad_dii_dbl; + break; + default: av_assert0(0); + } + break; + case TDII: + switch (inlink->format) { + case AV_SAMPLE_FMT_S16P: + s->filter = biquad_tdii_s16; + break; + case AV_SAMPLE_FMT_S32P: + s->filter = biquad_tdii_s32; + break; + case AV_SAMPLE_FMT_FLTP: + s->filter = biquad_tdii_flt; + break; + case AV_SAMPLE_FMT_DBLP: + s->filter = biquad_tdii_dbl; + break; + default: av_assert0(0); + } + break; + case LATT: + switch (inlink->format) { + case AV_SAMPLE_FMT_S16P: + s->filter = biquad_latt_s16; + break; + case AV_SAMPLE_FMT_S32P: + s->filter = biquad_latt_s32; + break; + case AV_SAMPLE_FMT_FLTP: + s->filter = biquad_latt_flt; + break; + case AV_SAMPLE_FMT_DBLP: + s->filter = biquad_latt_dbl; + break; + default: av_assert0(0); + } + break; + default: + av_assert0(0); + } - s->block_align = av_get_bytes_per_sample(inlink->format); + s->block_align = av_get_bytes_per_sample(inlink->format); + + if (s->transform_type == LATT) + convert_dir2latt(s); return 0; } @@ -442,7 +722,7 @@ static int filter_channel(AVFilterContext *ctx, void *arg, int jobnr, int nb_job s->filter(s, buf->extended_data[ch], out_buf->extended_data[ch], buf->nb_samples, &s->cache[ch].i1, &s->cache[ch].i2, &s->cache[ch].o1, &s->cache[ch].o2, - s->b0, s->b1, s->b2, s->a1, s->a2, &s->cache[ch].clippings); + s->b0, s->b1, s->b2, s->a1, s->a2, &s->cache[ch].clippings, ctx->is_disabled); } return 0; @@ -457,6 +737,9 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *buf) ThreadData td; int ch; + if (s->bypass) + return ff_filter_frame(outlink, buf); + if (av_frame_is_writable(buf)) { out_buf = buf; } else { @@ -488,118 +771,12 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *buf) static int process_command(AVFilterContext *ctx, const char *cmd, const char *args, char *res, int res_len, int flags) { - BiquadsContext *s = ctx->priv; AVFilterLink *outlink = ctx->outputs[0]; + int ret; - if ((!strcmp(cmd, "frequency") || !strcmp(cmd, "f")) && - (s->filter_type == equalizer || - s->filter_type == lowshelf || - s->filter_type == highshelf || - s->filter_type == bass || - s->filter_type == treble || - s->filter_type == bandpass || - s->filter_type == bandreject|| - s->filter_type == lowpass || - s->filter_type == highpass || - s->filter_type == allpass)) { - double freq; - - if (sscanf(args, "%lf", &freq) != 1) { - av_log(ctx, AV_LOG_ERROR, "Invalid frequency value.\n"); - return AVERROR(EINVAL); - } - - s->frequency = freq; - } else if ((!strcmp(cmd, "gain") || !strcmp(cmd, "g")) && - (s->filter_type == equalizer || - s->filter_type == lowshelf || - s->filter_type == highshelf || - s->filter_type == bass || - s->filter_type == treble)) { - double gain; - - if (sscanf(args, "%lf", &gain) != 1) { - av_log(ctx, AV_LOG_ERROR, "Invalid gain value.\n"); - return AVERROR(EINVAL); - } - - s->gain = gain; - } else if ((!strcmp(cmd, "width") || !strcmp(cmd, "w")) && - (s->filter_type == equalizer || - s->filter_type == lowshelf || - s->filter_type == highshelf || - s->filter_type == bass || - s->filter_type == treble || - s->filter_type == bandpass || - s->filter_type == bandreject|| - s->filter_type == lowpass || - s->filter_type == highpass || - s->filter_type == allpass)) { - double width; - - if (sscanf(args, "%lf", &width) != 1) { - av_log(ctx, AV_LOG_ERROR, "Invalid width value.\n"); - return AVERROR(EINVAL); - } - - s->width = width; - } else if ((!strcmp(cmd, "width_type") || !strcmp(cmd, "t")) && - (s->filter_type == equalizer || - s->filter_type == lowshelf || - s->filter_type == highshelf || - s->filter_type == bass || - s->filter_type == treble || - s->filter_type == bandpass || - s->filter_type == bandreject|| - s->filter_type == lowpass || - s->filter_type == highpass || - s->filter_type == allpass)) { - char width_type; - - if (sscanf(args, "%c", &width_type) != 1) { - av_log(ctx, AV_LOG_ERROR, "Invalid width_type value.\n"); - return AVERROR(EINVAL); - } - - switch (width_type) { - case 'h': width_type = HERTZ; break; - case 'q': width_type = QFACTOR; break; - case 'o': width_type = OCTAVE; break; - case 's': width_type = SLOPE; break; - case 'k': width_type = KHERTZ; break; - default: - av_log(ctx, AV_LOG_ERROR, "Invalid width_type value: %c\n", width_type); - return AVERROR(EINVAL); - } - - s->width_type = width_type; - } else if ((!strcmp(cmd, "a0") || - !strcmp(cmd, "a1") || - !strcmp(cmd, "a2") || - !strcmp(cmd, "b0") || - !strcmp(cmd, "b1") || - !strcmp(cmd, "b2")) && - s->filter_type == biquad) { - double value; - - if (sscanf(args, "%lf", &value) != 1) { - av_log(ctx, AV_LOG_ERROR, "Invalid biquad value.\n"); - return AVERROR(EINVAL); - } - - if (!strcmp(cmd, "a0")) - s->a0 = value; - else if (!strcmp(cmd, "a1")) - s->a1 = value; - else if (!strcmp(cmd, "a2")) - s->a2 = value; - else if (!strcmp(cmd, "b0")) - s->b0 = value; - else if (!strcmp(cmd, "b1")) - s->b1 = value; - else if (!strcmp(cmd, "b2")) - s->b2 = value; - } + ret = ff_filter_process_command(ctx, cmd, args, res, res_len, flags); + if (ret < 0) + return ret; return config_filter(outlink, 0); } @@ -630,19 +807,20 @@ static const AVFilterPad outputs[] = { }; #define OFFSET(x) offsetof(BiquadsContext, x) -#define FLAGS AV_OPT_FLAG_AUDIO_PARAM|AV_OPT_FLAG_FILTERING_PARAM +#define FLAGS AV_OPT_FLAG_AUDIO_PARAM|AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_RUNTIME_PARAM +#define AF AV_OPT_FLAG_AUDIO_PARAM|AV_OPT_FLAG_FILTERING_PARAM #define DEFINE_BIQUAD_FILTER(name_, description_) \ AVFILTER_DEFINE_CLASS(name_); \ -static av_cold int name_##_init(AVFilterContext *ctx) \ +static av_cold int name_##_init(AVFilterContext *ctx) \ { \ BiquadsContext *s = ctx->priv; \ s->class = &name_##_class; \ s->filter_type = name_; \ - return init(ctx); \ + return 0; \ } \ \ -AVFilter ff_af_##name_ = { \ +AVFilter ff_af_##name_ = { \ .name = #name_, \ .description = NULL_IF_CONFIG_SMALL(description_), \ .priv_size = sizeof(BiquadsContext), \ @@ -653,7 +831,7 @@ AVFilter ff_af_##name_ = { \ .outputs = outputs, \ .priv_class = &name_##_class, \ .process_command = process_command, \ - .flags = AVFILTER_FLAG_SLICE_THREADS, \ + .flags = AVFILTER_FLAG_SLICE_THREADS | AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL, \ } #if CONFIG_EQUALIZER_FILTER @@ -671,8 +849,18 @@ static const AVOption equalizer_options[] = { {"w", "set band-width", OFFSET(width), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0, 99999, FLAGS}, {"gain", "set gain", OFFSET(gain), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -900, 900, FLAGS}, {"g", "set gain", OFFSET(gain), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -900, 900, FLAGS}, + {"mix", "set mix", OFFSET(mix), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0, 1, FLAGS}, + {"m", "set mix", OFFSET(mix), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0, 1, FLAGS}, {"channels", "set channels to filter", OFFSET(channels), AV_OPT_TYPE_CHANNEL_LAYOUT, {.i64=-1}, INT64_MIN, INT64_MAX, FLAGS}, {"c", "set channels to filter", OFFSET(channels), AV_OPT_TYPE_CHANNEL_LAYOUT, {.i64=-1}, INT64_MIN, INT64_MAX, FLAGS}, + {"normalize", "normalize coefficients", OFFSET(normalize), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS}, + {"n", "normalize coefficients", OFFSET(normalize), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS}, + {"transform", "set transform type", OFFSET(transform_type), AV_OPT_TYPE_INT, {.i64=0}, 0, NB_TTYPE-1, AF, "transform_type"}, + {"a", "set transform type", OFFSET(transform_type), AV_OPT_TYPE_INT, {.i64=0}, 0, NB_TTYPE-1, AF, "transform_type"}, + {"di", "direct form I", 0, AV_OPT_TYPE_CONST, {.i64=DI}, 0, 0, AF, "transform_type"}, + {"dii", "direct form II", 0, AV_OPT_TYPE_CONST, {.i64=DII}, 0, 0, AF, "transform_type"}, + {"tdii", "transposed direct form II", 0, AV_OPT_TYPE_CONST, {.i64=TDII}, 0, 0, AF, "transform_type"}, + {"latt", "lattice-ladder form", 0, AV_OPT_TYPE_CONST, {.i64=LATT}, 0, 0, AF, "transform_type"}, {NULL} }; @@ -693,8 +881,18 @@ static const AVOption bass_options[] = { {"w", "set shelf transition steep", OFFSET(width), AV_OPT_TYPE_DOUBLE, {.dbl=0.5}, 0, 99999, FLAGS}, {"gain", "set gain", OFFSET(gain), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -900, 900, FLAGS}, {"g", "set gain", OFFSET(gain), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -900, 900, FLAGS}, + {"mix", "set mix", OFFSET(mix), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0, 1, FLAGS}, + {"m", "set mix", OFFSET(mix), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0, 1, FLAGS}, {"channels", "set channels to filter", OFFSET(channels), AV_OPT_TYPE_CHANNEL_LAYOUT, {.i64=-1}, INT64_MIN, INT64_MAX, FLAGS}, {"c", "set channels to filter", OFFSET(channels), AV_OPT_TYPE_CHANNEL_LAYOUT, {.i64=-1}, INT64_MIN, INT64_MAX, FLAGS}, + {"normalize", "normalize coefficients", OFFSET(normalize), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS}, + {"n", "normalize coefficients", OFFSET(normalize), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS}, + {"transform", "set transform type", OFFSET(transform_type), AV_OPT_TYPE_INT, {.i64=0}, 0, NB_TTYPE-1, AF, "transform_type"}, + {"a", "set transform type", OFFSET(transform_type), AV_OPT_TYPE_INT, {.i64=0}, 0, NB_TTYPE-1, AF, "transform_type"}, + {"di", "direct form I", 0, AV_OPT_TYPE_CONST, {.i64=DI}, 0, 0, AF, "transform_type"}, + {"dii", "direct form II", 0, AV_OPT_TYPE_CONST, {.i64=DII}, 0, 0, AF, "transform_type"}, + {"tdii", "transposed direct form II", 0, AV_OPT_TYPE_CONST, {.i64=TDII}, 0, 0, AF, "transform_type"}, + {"latt", "lattice-ladder form", 0, AV_OPT_TYPE_CONST, {.i64=LATT}, 0, 0, AF, "transform_type"}, {NULL} }; @@ -715,8 +913,18 @@ static const AVOption treble_options[] = { {"w", "set shelf transition steep", OFFSET(width), AV_OPT_TYPE_DOUBLE, {.dbl=0.5}, 0, 99999, FLAGS}, {"gain", "set gain", OFFSET(gain), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -900, 900, FLAGS}, {"g", "set gain", OFFSET(gain), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -900, 900, FLAGS}, + {"mix", "set mix", OFFSET(mix), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0, 1, FLAGS}, + {"m", "set mix", OFFSET(mix), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0, 1, FLAGS}, {"channels", "set channels to filter", OFFSET(channels), AV_OPT_TYPE_CHANNEL_LAYOUT, {.i64=-1}, INT64_MIN, INT64_MAX, FLAGS}, {"c", "set channels to filter", OFFSET(channels), AV_OPT_TYPE_CHANNEL_LAYOUT, {.i64=-1}, INT64_MIN, INT64_MAX, FLAGS}, + {"normalize", "normalize coefficients", OFFSET(normalize), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS}, + {"n", "normalize coefficients", OFFSET(normalize), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS}, + {"transform", "set transform type", OFFSET(transform_type), AV_OPT_TYPE_INT, {.i64=0}, 0, NB_TTYPE-1, AF, "transform_type"}, + {"a", "set transform type", OFFSET(transform_type), AV_OPT_TYPE_INT, {.i64=0}, 0, NB_TTYPE-1, AF, "transform_type"}, + {"di", "direct form I", 0, AV_OPT_TYPE_CONST, {.i64=DI}, 0, 0, AF, "transform_type"}, + {"dii", "direct form II", 0, AV_OPT_TYPE_CONST, {.i64=DII}, 0, 0, AF, "transform_type"}, + {"tdii", "transposed direct form II", 0, AV_OPT_TYPE_CONST, {.i64=TDII}, 0, 0, AF, "transform_type"}, + {"latt", "lattice-ladder form", 0, AV_OPT_TYPE_CONST, {.i64=LATT}, 0, 0, AF, "transform_type"}, {NULL} }; @@ -736,8 +944,18 @@ static const AVOption bandpass_options[] = { {"width", "set band-width", OFFSET(width), AV_OPT_TYPE_DOUBLE, {.dbl=0.5}, 0, 99999, FLAGS}, {"w", "set band-width", OFFSET(width), AV_OPT_TYPE_DOUBLE, {.dbl=0.5}, 0, 99999, FLAGS}, {"csg", "use constant skirt gain", OFFSET(csg), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS}, + {"mix", "set mix", OFFSET(mix), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0, 1, FLAGS}, + {"m", "set mix", OFFSET(mix), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0, 1, FLAGS}, {"channels", "set channels to filter", OFFSET(channels), AV_OPT_TYPE_CHANNEL_LAYOUT, {.i64=-1}, INT64_MIN, INT64_MAX, FLAGS}, {"c", "set channels to filter", OFFSET(channels), AV_OPT_TYPE_CHANNEL_LAYOUT, {.i64=-1}, INT64_MIN, INT64_MAX, FLAGS}, + {"normalize", "normalize coefficients", OFFSET(normalize), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS}, + {"n", "normalize coefficients", OFFSET(normalize), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS}, + {"transform", "set transform type", OFFSET(transform_type), AV_OPT_TYPE_INT, {.i64=0}, 0, NB_TTYPE-1, AF, "transform_type"}, + {"a", "set transform type", OFFSET(transform_type), AV_OPT_TYPE_INT, {.i64=0}, 0, NB_TTYPE-1, AF, "transform_type"}, + {"di", "direct form I", 0, AV_OPT_TYPE_CONST, {.i64=DI}, 0, 0, AF, "transform_type"}, + {"dii", "direct form II", 0, AV_OPT_TYPE_CONST, {.i64=DII}, 0, 0, AF, "transform_type"}, + {"tdii", "transposed direct form II", 0, AV_OPT_TYPE_CONST, {.i64=TDII}, 0, 0, AF, "transform_type"}, + {"latt", "lattice-ladder form", 0, AV_OPT_TYPE_CONST, {.i64=LATT}, 0, 0, AF, "transform_type"}, {NULL} }; @@ -756,8 +974,18 @@ static const AVOption bandreject_options[] = { {"k", "kHz", 0, AV_OPT_TYPE_CONST, {.i64=KHERTZ}, 0, 0, FLAGS, "width_type"}, {"width", "set band-width", OFFSET(width), AV_OPT_TYPE_DOUBLE, {.dbl=0.5}, 0, 99999, FLAGS}, {"w", "set band-width", OFFSET(width), AV_OPT_TYPE_DOUBLE, {.dbl=0.5}, 0, 99999, FLAGS}, + {"mix", "set mix", OFFSET(mix), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0, 1, FLAGS}, + {"m", "set mix", OFFSET(mix), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0, 1, FLAGS}, {"channels", "set channels to filter", OFFSET(channels), AV_OPT_TYPE_CHANNEL_LAYOUT, {.i64=-1}, INT64_MIN, INT64_MAX, FLAGS}, {"c", "set channels to filter", OFFSET(channels), AV_OPT_TYPE_CHANNEL_LAYOUT, {.i64=-1}, INT64_MIN, INT64_MAX, FLAGS}, + {"normalize", "normalize coefficients", OFFSET(normalize), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS}, + {"n", "normalize coefficients", OFFSET(normalize), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS}, + {"transform", "set transform type", OFFSET(transform_type), AV_OPT_TYPE_INT, {.i64=0}, 0, NB_TTYPE-1, AF, "transform_type"}, + {"a", "set transform type", OFFSET(transform_type), AV_OPT_TYPE_INT, {.i64=0}, 0, NB_TTYPE-1, AF, "transform_type"}, + {"di", "direct form I", 0, AV_OPT_TYPE_CONST, {.i64=DI}, 0, 0, AF, "transform_type"}, + {"dii", "direct form II", 0, AV_OPT_TYPE_CONST, {.i64=DII}, 0, 0, AF, "transform_type"}, + {"tdii", "transposed direct form II", 0, AV_OPT_TYPE_CONST, {.i64=TDII}, 0, 0, AF, "transform_type"}, + {"latt", "lattice-ladder form", 0, AV_OPT_TYPE_CONST, {.i64=LATT}, 0, 0, AF, "transform_type"}, {NULL} }; @@ -776,10 +1004,20 @@ static const AVOption lowpass_options[] = { {"k", "kHz", 0, AV_OPT_TYPE_CONST, {.i64=KHERTZ}, 0, 0, FLAGS, "width_type"}, {"width", "set width", OFFSET(width), AV_OPT_TYPE_DOUBLE, {.dbl=0.707}, 0, 99999, FLAGS}, {"w", "set width", OFFSET(width), AV_OPT_TYPE_DOUBLE, {.dbl=0.707}, 0, 99999, FLAGS}, - {"poles", "set number of poles", OFFSET(poles), AV_OPT_TYPE_INT, {.i64=2}, 1, 2, FLAGS}, - {"p", "set number of poles", OFFSET(poles), AV_OPT_TYPE_INT, {.i64=2}, 1, 2, FLAGS}, + {"poles", "set number of poles", OFFSET(poles), AV_OPT_TYPE_INT, {.i64=2}, 1, 2, AF}, + {"p", "set number of poles", OFFSET(poles), AV_OPT_TYPE_INT, {.i64=2}, 1, 2, AF}, + {"mix", "set mix", OFFSET(mix), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0, 1, FLAGS}, + {"m", "set mix", OFFSET(mix), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0, 1, FLAGS}, {"channels", "set channels to filter", OFFSET(channels), AV_OPT_TYPE_CHANNEL_LAYOUT, {.i64=-1}, INT64_MIN, INT64_MAX, FLAGS}, {"c", "set channels to filter", OFFSET(channels), AV_OPT_TYPE_CHANNEL_LAYOUT, {.i64=-1}, INT64_MIN, INT64_MAX, FLAGS}, + {"normalize", "normalize coefficients", OFFSET(normalize), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS}, + {"n", "normalize coefficients", OFFSET(normalize), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS}, + {"transform", "set transform type", OFFSET(transform_type), AV_OPT_TYPE_INT, {.i64=0}, 0, NB_TTYPE-1, AF, "transform_type"}, + {"a", "set transform type", OFFSET(transform_type), AV_OPT_TYPE_INT, {.i64=0}, 0, NB_TTYPE-1, AF, "transform_type"}, + {"di", "direct form I", 0, AV_OPT_TYPE_CONST, {.i64=DI}, 0, 0, AF, "transform_type"}, + {"dii", "direct form II", 0, AV_OPT_TYPE_CONST, {.i64=DII}, 0, 0, AF, "transform_type"}, + {"tdii", "transposed direct form II", 0, AV_OPT_TYPE_CONST, {.i64=TDII}, 0, 0, AF, "transform_type"}, + {"latt", "lattice-ladder form", 0, AV_OPT_TYPE_CONST, {.i64=LATT}, 0, 0, AF, "transform_type"}, {NULL} }; @@ -798,10 +1036,20 @@ static const AVOption highpass_options[] = { {"k", "kHz", 0, AV_OPT_TYPE_CONST, {.i64=KHERTZ}, 0, 0, FLAGS, "width_type"}, {"width", "set width", OFFSET(width), AV_OPT_TYPE_DOUBLE, {.dbl=0.707}, 0, 99999, FLAGS}, {"w", "set width", OFFSET(width), AV_OPT_TYPE_DOUBLE, {.dbl=0.707}, 0, 99999, FLAGS}, - {"poles", "set number of poles", OFFSET(poles), AV_OPT_TYPE_INT, {.i64=2}, 1, 2, FLAGS}, - {"p", "set number of poles", OFFSET(poles), AV_OPT_TYPE_INT, {.i64=2}, 1, 2, FLAGS}, + {"poles", "set number of poles", OFFSET(poles), AV_OPT_TYPE_INT, {.i64=2}, 1, 2, AF}, + {"p", "set number of poles", OFFSET(poles), AV_OPT_TYPE_INT, {.i64=2}, 1, 2, AF}, + {"mix", "set mix", OFFSET(mix), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0, 1, FLAGS}, + {"m", "set mix", OFFSET(mix), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0, 1, FLAGS}, {"channels", "set channels to filter", OFFSET(channels), AV_OPT_TYPE_CHANNEL_LAYOUT, {.i64=-1}, INT64_MIN, INT64_MAX, FLAGS}, {"c", "set channels to filter", OFFSET(channels), AV_OPT_TYPE_CHANNEL_LAYOUT, {.i64=-1}, INT64_MIN, INT64_MAX, FLAGS}, + {"normalize", "normalize coefficients", OFFSET(normalize), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS}, + {"n", "normalize coefficients", OFFSET(normalize), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS}, + {"transform", "set transform type", OFFSET(transform_type), AV_OPT_TYPE_INT, {.i64=0}, 0, NB_TTYPE-1, AF, "transform_type"}, + {"a", "set transform type", OFFSET(transform_type), AV_OPT_TYPE_INT, {.i64=0}, 0, NB_TTYPE-1, AF, "transform_type"}, + {"di", "direct form I", 0, AV_OPT_TYPE_CONST, {.i64=DI}, 0, 0, AF, "transform_type"}, + {"dii", "direct form II", 0, AV_OPT_TYPE_CONST, {.i64=DII}, 0, 0, AF, "transform_type"}, + {"tdii", "transposed direct form II", 0, AV_OPT_TYPE_CONST, {.i64=TDII}, 0, 0, AF, "transform_type"}, + {"latt", "lattice-ladder form", 0, AV_OPT_TYPE_CONST, {.i64=LATT}, 0, 0, AF, "transform_type"}, {NULL} }; @@ -820,8 +1068,20 @@ static const AVOption allpass_options[] = { {"k", "kHz", 0, AV_OPT_TYPE_CONST, {.i64=KHERTZ}, 0, 0, FLAGS, "width_type"}, {"width", "set filter-width", OFFSET(width), AV_OPT_TYPE_DOUBLE, {.dbl=707.1}, 0, 99999, FLAGS}, {"w", "set filter-width", OFFSET(width), AV_OPT_TYPE_DOUBLE, {.dbl=707.1}, 0, 99999, FLAGS}, + {"mix", "set mix", OFFSET(mix), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0, 1, FLAGS}, + {"m", "set mix", OFFSET(mix), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0, 1, FLAGS}, {"channels", "set channels to filter", OFFSET(channels), AV_OPT_TYPE_CHANNEL_LAYOUT, {.i64=-1}, INT64_MIN, INT64_MAX, FLAGS}, {"c", "set channels to filter", OFFSET(channels), AV_OPT_TYPE_CHANNEL_LAYOUT, {.i64=-1}, INT64_MIN, INT64_MAX, FLAGS}, + {"normalize", "normalize coefficients", OFFSET(normalize), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS}, + {"n", "normalize coefficients", OFFSET(normalize), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS}, + {"order", "set filter order", OFFSET(order), AV_OPT_TYPE_INT, {.i64=2}, 1, 2, FLAGS}, + {"o", "set filter order", OFFSET(order), AV_OPT_TYPE_INT, {.i64=2}, 1, 2, FLAGS}, + {"transform", "set transform type", OFFSET(transform_type), AV_OPT_TYPE_INT, {.i64=0}, 0, NB_TTYPE-1, AF, "transform_type"}, + {"a", "set transform type", OFFSET(transform_type), AV_OPT_TYPE_INT, {.i64=0}, 0, NB_TTYPE-1, AF, "transform_type"}, + {"di", "direct form I", 0, AV_OPT_TYPE_CONST, {.i64=DI}, 0, 0, AF, "transform_type"}, + {"dii", "direct form II", 0, AV_OPT_TYPE_CONST, {.i64=DII}, 0, 0, AF, "transform_type"}, + {"tdii", "transposed direct form II", 0, AV_OPT_TYPE_CONST, {.i64=TDII}, 0, 0, AF, "transform_type"}, + {"latt", "lattice-ladder form", 0, AV_OPT_TYPE_CONST, {.i64=LATT}, 0, 0, AF, "transform_type"}, {NULL} }; @@ -842,8 +1102,18 @@ static const AVOption lowshelf_options[] = { {"w", "set shelf transition steep", OFFSET(width), AV_OPT_TYPE_DOUBLE, {.dbl=0.5}, 0, 99999, FLAGS}, {"gain", "set gain", OFFSET(gain), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -900, 900, FLAGS}, {"g", "set gain", OFFSET(gain), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -900, 900, FLAGS}, + {"mix", "set mix", OFFSET(mix), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0, 1, FLAGS}, + {"m", "set mix", OFFSET(mix), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0, 1, FLAGS}, {"channels", "set channels to filter", OFFSET(channels), AV_OPT_TYPE_CHANNEL_LAYOUT, {.i64=-1}, INT64_MIN, INT64_MAX, FLAGS}, {"c", "set channels to filter", OFFSET(channels), AV_OPT_TYPE_CHANNEL_LAYOUT, {.i64=-1}, INT64_MIN, INT64_MAX, FLAGS}, + {"normalize", "normalize coefficients", OFFSET(normalize), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS}, + {"n", "normalize coefficients", OFFSET(normalize), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS}, + {"transform", "set transform type", OFFSET(transform_type), AV_OPT_TYPE_INT, {.i64=0}, 0, NB_TTYPE-1, AF, "transform_type"}, + {"a", "set transform type", OFFSET(transform_type), AV_OPT_TYPE_INT, {.i64=0}, 0, NB_TTYPE-1, AF, "transform_type"}, + {"di", "direct form I", 0, AV_OPT_TYPE_CONST, {.i64=DI}, 0, 0, AF, "transform_type"}, + {"dii", "direct form II", 0, AV_OPT_TYPE_CONST, {.i64=DII}, 0, 0, AF, "transform_type"}, + {"tdii", "transposed direct form II", 0, AV_OPT_TYPE_CONST, {.i64=TDII}, 0, 0, AF, "transform_type"}, + {"latt", "lattice-ladder form", 0, AV_OPT_TYPE_CONST, {.i64=LATT}, 0, 0, AF, "transform_type"}, {NULL} }; @@ -864,8 +1134,18 @@ static const AVOption highshelf_options[] = { {"w", "set shelf transition steep", OFFSET(width), AV_OPT_TYPE_DOUBLE, {.dbl=0.5}, 0, 99999, FLAGS}, {"gain", "set gain", OFFSET(gain), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -900, 900, FLAGS}, {"g", "set gain", OFFSET(gain), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -900, 900, FLAGS}, + {"mix", "set mix", OFFSET(mix), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0, 1, FLAGS}, + {"m", "set mix", OFFSET(mix), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0, 1, FLAGS}, {"channels", "set channels to filter", OFFSET(channels), AV_OPT_TYPE_CHANNEL_LAYOUT, {.i64=-1}, INT64_MIN, INT64_MAX, FLAGS}, {"c", "set channels to filter", OFFSET(channels), AV_OPT_TYPE_CHANNEL_LAYOUT, {.i64=-1}, INT64_MIN, INT64_MAX, FLAGS}, + {"normalize", "normalize coefficients", OFFSET(normalize), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS}, + {"n", "normalize coefficients", OFFSET(normalize), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS}, + {"transform", "set transform type", OFFSET(transform_type), AV_OPT_TYPE_INT, {.i64=0}, 0, NB_TTYPE-1, AF, "transform_type"}, + {"a", "set transform type", OFFSET(transform_type), AV_OPT_TYPE_INT, {.i64=0}, 0, NB_TTYPE-1, AF, "transform_type"}, + {"di", "direct form I", 0, AV_OPT_TYPE_CONST, {.i64=DI}, 0, 0, AF, "transform_type"}, + {"dii", "direct form II", 0, AV_OPT_TYPE_CONST, {.i64=DII}, 0, 0, AF, "transform_type"}, + {"tdii", "transposed direct form II", 0, AV_OPT_TYPE_CONST, {.i64=TDII}, 0, 0, AF, "transform_type"}, + {"latt", "lattice-ladder form", 0, AV_OPT_TYPE_CONST, {.i64=LATT}, 0, 0, AF, "transform_type"}, {NULL} }; @@ -873,14 +1153,24 @@ DEFINE_BIQUAD_FILTER(highshelf, "Apply a high shelf filter."); #endif /* CONFIG_HIGHSHELF_FILTER */ #if CONFIG_BIQUAD_FILTER static const AVOption biquad_options[] = { - {"a0", NULL, OFFSET(a0), AV_OPT_TYPE_DOUBLE, {.dbl=1}, INT32_MIN, INT32_MAX, FLAGS}, - {"a1", NULL, OFFSET(a1), AV_OPT_TYPE_DOUBLE, {.dbl=0}, INT32_MIN, INT32_MAX, FLAGS}, - {"a2", NULL, OFFSET(a2), AV_OPT_TYPE_DOUBLE, {.dbl=0}, INT32_MIN, INT32_MAX, FLAGS}, - {"b0", NULL, OFFSET(b0), AV_OPT_TYPE_DOUBLE, {.dbl=0}, INT32_MIN, INT32_MAX, FLAGS}, - {"b1", NULL, OFFSET(b1), AV_OPT_TYPE_DOUBLE, {.dbl=0}, INT32_MIN, INT32_MAX, FLAGS}, - {"b2", NULL, OFFSET(b2), AV_OPT_TYPE_DOUBLE, {.dbl=0}, INT32_MIN, INT32_MAX, FLAGS}, + {"a0", NULL, OFFSET(oa0), AV_OPT_TYPE_DOUBLE, {.dbl=1}, INT32_MIN, INT32_MAX, FLAGS}, + {"a1", NULL, OFFSET(oa1), AV_OPT_TYPE_DOUBLE, {.dbl=0}, INT32_MIN, INT32_MAX, FLAGS}, + {"a2", NULL, OFFSET(oa2), AV_OPT_TYPE_DOUBLE, {.dbl=0}, INT32_MIN, INT32_MAX, FLAGS}, + {"b0", NULL, OFFSET(ob0), AV_OPT_TYPE_DOUBLE, {.dbl=0}, INT32_MIN, INT32_MAX, FLAGS}, + {"b1", NULL, OFFSET(ob1), AV_OPT_TYPE_DOUBLE, {.dbl=0}, INT32_MIN, INT32_MAX, FLAGS}, + {"b2", NULL, OFFSET(ob2), AV_OPT_TYPE_DOUBLE, {.dbl=0}, INT32_MIN, INT32_MAX, FLAGS}, + {"mix", "set mix", OFFSET(mix), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0, 1, FLAGS}, + {"m", "set mix", OFFSET(mix), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0, 1, FLAGS}, {"channels", "set channels to filter", OFFSET(channels), AV_OPT_TYPE_CHANNEL_LAYOUT, {.i64=-1}, INT64_MIN, INT64_MAX, FLAGS}, {"c", "set channels to filter", OFFSET(channels), AV_OPT_TYPE_CHANNEL_LAYOUT, {.i64=-1}, INT64_MIN, INT64_MAX, FLAGS}, + {"normalize", "normalize coefficients", OFFSET(normalize), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS}, + {"n", "normalize coefficients", OFFSET(normalize), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS}, + {"transform", "set transform type", OFFSET(transform_type), AV_OPT_TYPE_INT, {.i64=0}, 0, NB_TTYPE-1, AF, "transform_type"}, + {"a", "set transform type", OFFSET(transform_type), AV_OPT_TYPE_INT, {.i64=0}, 0, NB_TTYPE-1, AF, "transform_type"}, + {"di", "direct form I", 0, AV_OPT_TYPE_CONST, {.i64=DI}, 0, 0, AF, "transform_type"}, + {"dii", "direct form II", 0, AV_OPT_TYPE_CONST, {.i64=DII}, 0, 0, AF, "transform_type"}, + {"tdii", "transposed direct form II", 0, AV_OPT_TYPE_CONST, {.i64=TDII}, 0, 0, AF, "transform_type"}, + {"latt", "lattice-ladder form", 0, AV_OPT_TYPE_CONST, {.i64=LATT}, 0, 0, AF, "transform_type"}, {NULL} };