[FFmpeg-devel] [PATCH] ffplay: extend documentation for the -vf option

[Marton Balint]

On Sun, 13 Jan 2013, Stefano Sabatini wrote:

> In particular, make it consistent with the ffmpeg docs.
> ---
> doc/ffplay.texi |   11 ++++++++---
> ffplay.c        |    2 +-
> 2 files changed, 9 insertions(+), 4 deletions(-)
>
> diff --git a/doc/ffplay.texi b/doc/ffplay.texi
> index 0703a54..2b37652 100644
> --- a/doc/ffplay.texi
> +++ b/doc/ffplay.texi
> @@ -74,10 +74,15 @@ You can interactively cycle through the available show modes by
> pressing the key @key{w}.
>
> @item -vf @var{filter_graph}
> +Create the filter graph specified by @var{filter_graph} and use it to
> +filter the stream.
> +
> @var{filter_graph} is a description of the filter graph to apply to
> -the input video.
> -Use the option "-filters" to show all the available filters (including
> -also sources and sinks).
> +the stream, and must have a single video input and a single video
> +output. In the filter graph, the input is associated to the label
> + at code{in}, and the output to the label @code{out}. See the
> +ffmpeg-filters manual for more information about the filtergraph
> +syntax.
>
> @item -i @var{input_file}
> Read @var{input_file}.
> diff --git a/ffplay.c b/ffplay.c
> index f300f7e..b23cec2 100644
> --- a/ffplay.c
> +++ b/ffplay.c
> @@ -3241,7 +3241,7 @@ static const OptionDef options[] = {
>     { "infbuf", OPT_BOOL | OPT_EXPERT, { &infinite_buffer }, "don't limit the input buffer size (useful with realtime streams)", "" },
>     { "window_title", OPT_STRING | HAS_ARG, { &window_title }, "set window title", "window title" },
> #if CONFIG_AVFILTER
> -    { "vf", OPT_STRING | HAS_ARG, { &vfilters }, "video filters", "filter list" },
> +    { "vf", OPT_STRING | HAS_ARG, { &vfilters }, "set video filters", "filter_graph" },
> #endif
>     { "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, { &rdftspeed }, "rdft speed", "msecs" },
>     { "showmode", HAS_ARG, { .func_arg = opt_show_mode}, "select show mode (0 = video, 1 = waves, 2 = RDFT)", "mode" },
> --
> 1.7.9.5

LGTM, thanks.

Marton