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lavfi/sine: use standard options parsing.

This commit is contained in:
Clément Bœsch 2013-03-24 08:40:38 +01:00
parent 3ac77f67af
commit 07b7c2a217
1 changed files with 3 additions and 7 deletions
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10
libavfilter/asrc_sine.c
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@ -123,14 +123,7 @@ static void make_sin_table(int16_t *sin)
static av_cold int init(AVFilterContext *ctx, const char *args)
{
SineContext *sine = ctx->priv;
static const char *shorthand[] = { "frequency", "beep_factor", NULL };
int ret;
sine->class = &sine_class;
av_opt_set_defaults(sine);
if ((ret = av_opt_set_from_string(sine, args, shorthand, "=", ":")) < 0)
return ret;
if (!(sine->sin = av_malloc(sizeof(*sine->sin) << LOG_PERIOD)))
return AVERROR(ENOMEM);
sine->dphi = ldexp(sine->frequency, 32) / sine->sample_rate + 0.5;
@ -217,6 +210,8 @@ static const AVFilterPad sine_outputs[] = {
{ NULL }
};
static const char *const shorthand[] = { "frequency", "beep_factor", NULL };
AVFilter avfilter_asrc_sine = {
.name = "sine",
.description = NULL_IF_CONFIG_SMALL("Generate sine wave audio signal."),
@ -227,4 +222,5 @@ AVFilter avfilter_asrc_sine = {
.inputs = NULL,
.outputs = sine_outputs,
.priv_class = &sine_class,
.shorthand = shorthand,
};