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avfilter/af_atempo: use ff_filter_process_command()

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This commit is contained in:
Paul B Mahol 2019-10-09 12:13:22 +02:00
parent 015cbca444
commit ce764a6c74
1 changed files with 8 additions and 17 deletions
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25
libavfilter/af_atempo.c
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@ -162,7 +162,7 @@ static const AVOption atempo_options[] = {
OFFSET(tempo), AV_OPT_TYPE_DOUBLE, { .dbl = 1.0 },
YAE_ATEMPO_MIN,
YAE_ATEMPO_MAX,
AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_FILTERING_PARAM },
AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_RUNTIME_PARAM },
{ NULL }
};
@ -328,28 +328,14 @@ static int yae_reset(ATempoContext *atempo,
return 0;
}
static int yae_set_tempo(AVFilterContext *ctx, const char *arg_tempo)
static int yae_update(AVFilterContext *ctx)
{
const AudioFragment *prev;
ATempoContext *atempo = ctx->priv;
char *tail = NULL;
double tempo = av_strtod(arg_tempo, &tail);
if (tail && *tail) {
av_log(ctx, AV_LOG_ERROR, "Invalid tempo value '%s'\n", arg_tempo);
return AVERROR(EINVAL);
}
if (tempo < YAE_ATEMPO_MIN || tempo > YAE_ATEMPO_MAX) {
av_log(ctx, AV_LOG_ERROR, "Tempo value %f exceeds [%f, %f] range\n",
tempo, YAE_ATEMPO_MIN, YAE_ATEMPO_MAX);
return AVERROR(EINVAL);
}
prev = yae_prev_frag(atempo);
atempo->origin[0] = prev->position[0] + atempo->window / 2;
atempo->origin[1] = prev->position[1] + atempo->window / 2;
atempo->tempo = tempo;
return 0;
}
@ -1189,7 +1175,12 @@ static int process_command(AVFilterContext *ctx,
int res_len,
int flags)
{
return !strcmp(cmd, "tempo") ? yae_set_tempo(ctx, arg) : AVERROR(ENOSYS);
int ret = ff_filter_process_command(ctx, cmd, arg, res, res_len, flags);
if (ret < 0)
return ret;
return yae_update(ctx);
}
static const AVFilterPad atempo_inputs[] = {