Missing documentation. Also it is lavfi not lavf.
On 5/3/20, Jai Luthra <m...@jailuthra.in> wrote:
> Enables writing buffered frames to the outsink using send command api.
>
> This is useful when a lavf user wants to fetch buffered frames without
> closing/reopening the filtergraph again and again.
>
> Signed-off-by: Jai Luthra <m...@jailuthra.in>
> ---
> libavfilter/vf_fps.c | 36 +++++++++++++++++++++++++++---------
> 1 file changed, 27 insertions(+), 9 deletions(-)
>
> diff --git a/libavfilter/vf_fps.c b/libavfilter/vf_fps.c
> index cf1e36726a..fa856a8f45 100644
> --- a/libavfilter/vf_fps.c
> +++ b/libavfilter/vf_fps.c
> @@ -326,6 +326,23 @@ static int activate(AVFilterContext *ctx)
> return FFERROR_NOT_READY;
> }
>
> +static int process_command(AVFilterContext *ctx, const char *cmd, const
> char *args,
> + char *res, int res_len, int flags)
> +{
> + FPSContext *s = ctx->priv;
> + int ret, again = 0;
> +
> + if (!strcmp(cmd, "force_write")) {
> + AVFilterLink *outlink = ctx->outputs[0];
> + ret = write_frame(ctx, s, outlink, &again);
> + if (again)
> + ff_filter_set_ready(ctx, 100);
> + } else
> + ret = AVERROR(ENOSYS);
> +
> + return ret;
> +}
> +
> static const AVFilterPad avfilter_vf_fps_inputs[] = {
> {
> .name = "default",
> @@ -344,13 +361,14 @@ static const AVFilterPad avfilter_vf_fps_outputs[] = {
> };
>
> AVFilter ff_vf_fps = {
> - .name = "fps",
> - .description = NULL_IF_CONFIG_SMALL("Force constant framerate."),
> - .init = init,
> - .uninit = uninit,
> - .priv_size = sizeof(FPSContext),
> - .priv_class = &fps_class,
> - .activate = activate,
> - .inputs = avfilter_vf_fps_inputs,
> - .outputs = avfilter_vf_fps_outputs,
> + .name = "fps",
> + .description = NULL_IF_CONFIG_SMALL("Force constant framerate."),
> + .init = init,
> + .uninit = uninit,
> + .priv_size = sizeof(FPSContext),
> + .priv_class = &fps_class,
> + .activate = activate,
> + .inputs = avfilter_vf_fps_inputs,
> + .outputs = avfilter_vf_fps_outputs,
> + .process_command = process_command,
> };
> --
> 2.26.2
>
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