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avfilter/af_compensationdelay: add commands support

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This commit is contained in:
Paul B Mahol 2022-02-11 21:15:48 +01:00
parent 4b40e20ce9
commit 1ca19cf371
2 changed files with 33 additions and 3 deletions
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4
doc/filters.texi
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@ -4066,6 +4066,10 @@ Set temperature in degrees Celsius. This is the temperature of the environment.
Default is 20.
@end table
@subsection Commands
This filter supports the all above options as @ref{commands}.
@section crossfeed
Apply headphone crossfeed filter.

32
libavfilter/af_compensationdelay.c
View File

@ -40,7 +40,7 @@ typedef struct CompensationDelayContext {
} CompensationDelayContext;
#define OFFSET(x) offsetof(CompensationDelayContext, x)
#define A AV_OPT_FLAG_AUDIO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
#define A (AV_OPT_FLAG_AUDIO_PARAM|AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_RUNTIME_PARAM)
static const AVOption compensationdelay_options[] = {
{ "mm", "set mm distance", OFFSET(distance_mm), AV_OPT_TYPE_INT, {.i64=0}, 0, 10, A },
@ -84,6 +84,7 @@ static int config_input(AVFilterLink *inlink)
s->delay_frame->format = inlink->format;
s->delay_frame->nb_samples = new_size;
s->delay_frame->channel_layout = inlink->channel_layout;
s->delay_frame->channels = inlink->channels;
return av_frame_get_buffer(s->delay_frame, 0);
}
@ -91,6 +92,7 @@ static int config_input(AVFilterLink *inlink)
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
{
AVFilterContext *ctx = inlink->dst;
AVFilterLink *outlink = ctx->outputs[0];
CompensationDelayContext *s = ctx->priv;
const unsigned b_mask = s->buf_size - 1;
const unsigned buf_size = s->buf_size;
@ -101,7 +103,7 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in)
AVFrame *out;
int n, ch;
out = ff_get_audio_buffer(ctx->outputs[0], in->nb_samples);
out = ff_get_audio_buffer(outlink, in->nb_samples);
if (!out) {
av_frame_free(&in);
return AVERROR(ENOMEM);
@ -127,8 +129,30 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in)
}
s->w_ptr = w_ptr;
if (ctx->is_disabled) {
av_frame_free(&out);
return ff_filter_frame(outlink, in);
}
av_frame_free(&in);
return ff_filter_frame(ctx->outputs[0], out);
return ff_filter_frame(outlink, out);
}
static int process_command(AVFilterContext *ctx, const char *cmd, const char *args,
char *res, int res_len, int flags)
{
CompensationDelayContext *s = ctx->priv;
AVFilterLink *outlink = ctx->outputs[0];
int ret;
ret = ff_filter_process_command(ctx, cmd, args, res, res_len, flags);
if (ret < 0)
return ret;
s->delay = (s->distance_m * 100. + s->distance_cm * 1. + s->distance_mm * .1) *
COMP_DELAY_SOUND_FRONT_DELAY(s->temp) * outlink->sample_rate;
return 0;
}
static av_cold void uninit(AVFilterContext *ctx)
@ -163,4 +187,6 @@ const AVFilter ff_af_compensationdelay = {
FILTER_INPUTS(compensationdelay_inputs),
FILTER_OUTPUTS(compensationdelay_outputs),
FILTER_SINGLE_SAMPLEFMT(AV_SAMPLE_FMT_DBLP),
.process_command = process_command,
.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL,
};