[FFmpeg-devel] [PATCH] vf_copy: exclude hwaccel formats

[Paul B Mahol]

On 2/26/16, wm4 <nfxjfg at googlemail.com> wrote:
> This does obviously not work.
>
> (Additions based on vf_crop.c.)
> ---
>  libavfilter/vf_copy.c | 18 ++++++++++++++++++
>  1 file changed, 18 insertions(+)
>
> diff --git a/libavfilter/vf_copy.c b/libavfilter/vf_copy.c
> index fb9a906..b0159cf 100644
> --- a/libavfilter/vf_copy.c
> +++ b/libavfilter/vf_copy.c
> @@ -27,6 +27,23 @@
>  #include "internal.h"
>  #include "video.h"
>
> +static int query_formats(AVFilterContext *ctx)
> +{
> +    AVFilterFormats *formats = NULL;
> +    int fmt;
> +
> +    for (fmt = 0; av_pix_fmt_desc_get(fmt); fmt++) {
> +        const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(fmt);
> +        int ret;
> +        if (desc->flags & AV_PIX_FMT_FLAG_HWACCEL)
> +            continue;
> +        if ((ret = ff_add_format(&formats, fmt)) < 0)
> +            return ret;
> +    }
> +
> +    return ff_set_common_formats(ctx, formats);
> +}
> +
>  static int filter_frame(AVFilterLink *inlink, AVFrame *in)
>  {
>      AVFilterLink *outlink = inlink->dst->outputs[0];
> @@ -64,4 +81,5 @@ AVFilter ff_vf_copy = {
>      .description = NULL_IF_CONFIG_SMALL("Copy the input video unchanged to
> the output."),
>      .inputs      = avfilter_vf_copy_inputs,
>      .outputs     = avfilter_vf_copy_outputs,
> +    .query_formats = query_formats,
>  };

I guess this should be fine.