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avfilter/af_biquads: use ff_filter_process_command()

tags/n4.3
Paul B Mahol 6 years ago
parent
dcfe32920c
commit
015cbca444
1 changed files with 10 additions and 124 deletions
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  1. +10
    -124
      libavfilter/af_biquads.c

+ 10
- 124
libavfilter/af_biquads.c View File

@@ -503,127 +503,12 @@ 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 = av_clipd(gain, -900, 900);
} else if (!strcmp(cmd, "mix") || !strcmp(cmd, "m")) {
double mix;

if (sscanf(args, "%lf", &mix) != 1) {
av_log(ctx, AV_LOG_ERROR, "Invalid mix value.\n");
return AVERROR(EINVAL);
}

s->mix = av_clipd(mix, 0, 1);
} 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);
}
@@ -654,7 +539,8 @@ 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_); \
@@ -810,8 +696,8 @@ 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},
@@ -834,8 +720,8 @@ 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},


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