[FFmpeg-devel] [PATCH] doc/bitstream_filters: add filter_units practical examples for removing closed captions

[Stefano Sabatini]

On date Saturday 2023-12-09 13:31:13 -0600, Marth64 wrote:
> ---
>  doc/bitstream_filters.texi | 17 +++++++++++++++++
>  1 file changed, 17 insertions(+)
> 
> diff --git a/doc/bitstream_filters.texi b/doc/bitstream_filters.texi
> index 145aa8684e..b01ede0c93 100644
> --- a/doc/bitstream_filters.texi
> +++ b/doc/bitstream_filters.texi
> @@ -213,6 +213,23 @@ To remove all AUDs, SEI and filler from an H.265 stream:
>  ffmpeg -i INPUT -c:v copy -bsf:v 'filter_units=remove_types=35|38-40' OUTPUT
>  @end example
>  

> +By nature of removing SEI messages, the filter can also remove Closed Captions.

I think you might expand this to shortly explain the relation between
Closed Captions and SEI message. Also, I'd avoid the expression "by
nature" and replace with a plainer/more explicit expression (as most
of the readers are not English speakers).

[...]