The set value depends on the input link, or on the sample_rate value.
Avoids the need to explicitely set the time_base value.
if (link->src->input_count) {
if (!link->sample_rate)
link->sample_rate = link->src->inputs[0]->sample_rate;
+ if (!link->time_base.num && !link->time_base.den)
+ link->time_base = link->src->inputs[0]->time_base;
} else if (!link->sample_rate) {
av_log(link->src, AV_LOG_ERROR,
"Audio source filters must set their output link's "
"sample_rate\n");
return AVERROR(EINVAL);
}
+
+ if (!link->time_base.num && !link->time_base.den)
+ link->time_base = (AVRational) {1, link->sample_rate};
}
if ((config_link = link->dstpad->config_props))