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lavfi: set link audio time_base if not set in avfilter_config_links()

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The set value depends on the input link, or on the sample_rate value.
Avoids the need to explicitely set the time_base value.
This commit is contained in:
Stefano Sabatini 2011-09-16 12:38:31 +02:00
parent 4460b81f9e
commit 71c644ceda
1 changed files with 5 additions and 0 deletions
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5
libavfilter/avfilter.c
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@ -299,12 +299,17 @@ int avfilter_config_links(AVFilterContext *filter)
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))