return 0;
}
+static char *get_metadata_val(AVFilterBufferRef *insamples, const char *key)
+{
+ AVDictionaryEntry *e = av_dict_get(insamples->metadata, key, NULL, 0);
+ return e && e->value ? e->value : NULL;
+}
+
static int filter_samples(AVFilterLink *inlink, AVFilterBufferRef *insamples)
{
int i;
silence->last_sample_rate = srate;
// TODO: support more sample formats
+ // TODO: document metadata
if (insamples->format == AV_SAMPLE_FMT_DBL) {
double *p = (double *)insamples->data[0];
silence->nb_null_samples++;
if (silence->nb_null_samples >= nb_samples_notify) {
silence->start = insamples->pts - (int64_t)(silence->duration / av_q2d(inlink->time_base) + .5);
- av_log(silence, AV_LOG_INFO,
- "silence_start: %s\n", av_ts2timestr(silence->start, &inlink->time_base));
+ av_dict_set(&insamples->metadata, "lavfi.silence_start",
+ av_ts2timestr(silence->start, &inlink->time_base), 0);
+ av_log(silence, AV_LOG_INFO, "silence_start: %s\n",
+ get_metadata_val(insamples, "lavfi.silence_start"));
}
}
} else {
- if (silence->start)
+ if (silence->start) {
+ av_dict_set(&insamples->metadata, "lavfi.silence_end",
+ av_ts2timestr(insamples->pts, &inlink->time_base), 0);
+ av_dict_set(&insamples->metadata, "lavfi.silence_duration",
+ av_ts2timestr(insamples->pts - silence->start, &inlink->time_base), 0);
av_log(silence, AV_LOG_INFO,
"silence_end: %s | silence_duration: %s\n",
- av_ts2timestr(insamples->pts, &inlink->time_base),
- av_ts2timestr(insamples->pts - silence->start, &inlink->time_base));
+ get_metadata_val(insamples, "lavfi.silence_end"),
+ get_metadata_val(insamples, "lavfi.silence_duration"));
+ }
silence->nb_null_samples = silence->start = 0;
}
}