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avfilter/af_adelay: remove requirement that at least one delay should be provided

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Such requirement is not necessary and code works without it just fine.

Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol 2017-08-30 18:14:10 +02:00
parent 2b7da70a70
commit 6ccd32c367
2 changed files with 0 additions and 6 deletions
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1
doc/filters.texi
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@ -551,7 +551,6 @@ The filter accepts the following option:
@table @option @table @option
@item delays @item delays
Set list of delays in milliseconds for each channel separated by '|'. Set list of delays in milliseconds for each channel separated by '|'.
At least one delay greater than 0 should be provided.
Unused delays will be silently ignored. If number of given delays is Unused delays will be silently ignored. If number of given delays is
smaller than number of channels all remaining channels will not be delayed. smaller than number of channels all remaining channels will not be delayed.
If you want to delay exact number of samples, append 'S' to number. If you want to delay exact number of samples, append 'S' to number.

5
libavfilter/af_adelay.c
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@ -171,11 +171,6 @@ static int config_input(AVFilterLink *inlink)
s->max_delay = FFMAX(s->max_delay, d->delay); s->max_delay = FFMAX(s->max_delay, d->delay);
} }
if (!s->max_delay) {
av_log(ctx, AV_LOG_ERROR, "At least one delay >0 must be specified.\n");
return AVERROR(EINVAL);
}
switch (inlink->format) { switch (inlink->format) {
case AV_SAMPLE_FMT_U8P : s->delay_channel = delay_channel_u8p ; break; case AV_SAMPLE_FMT_U8P : s->delay_channel = delay_channel_u8p ; break;
case AV_SAMPLE_FMT_S16P: s->delay_channel = delay_channel_s16p; break; case AV_SAMPLE_FMT_S16P: s->delay_channel = delay_channel_s16p; break;