[FFmpeg-devel] [PATCH] avfilter: add adelay filter

Lou Logan lou at lrcd.com
Fri Sep 13 20:40:59 CEST 2013


On Fri, 13 Sep 2013 17:42:08 +0000, Paul B Mahol wrote:

> Signed-off-by: Paul B Mahol <onemda at gmail.com>
> ---
>  doc/filters.texi         |  15 +++
>  libavfilter/Makefile     |   1 +
>  libavfilter/af_adelay.c  | 296 +++++++++++++++++++++++++++++++++++++++++++++++
>  libavfilter/allfilters.c |   1 +
>  4 files changed, 313 insertions(+)
>  create mode 100644 libavfilter/af_adelay.c
> 
> diff --git a/doc/filters.texi b/doc/filters.texi
> index 7f8d1b2..d4cec8a 100644
> --- a/doc/filters.texi
> +++ b/doc/filters.texi
> @@ -347,6 +347,21 @@ aconvert=u8:auto
>  @end example
>  @end itemize
>  
> + at section adelay
> +
> +Delay one or more audio channels.
> +
> +The filter accepts the following option:
> +
> + at table @option
> + at item delays
> +Set list of delays in milliseconds for each channel.
> +At least one delay greater than 0 should be provided.
> +Unused delays will be silently ignored. If number
> +of given delays is smaller than numer of channels all
> +remaining channels will be un-delayed.

typo: s/numer/number

The last sentence is confusing to me: "un-delayed" implies that the
remaining channels are already delayed and the delaying will be undone.

An example would be nice.


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