[FFmpeg-devel] [PATCH v1] avfilter/showinfo: support Content Light Level information

[mypopy at gmail.com]

On Fri, Aug 9, 2019 at 10:36 AM <lance.lmwang at gmail.com> wrote:
>
> From: Limin Wang <lance.lmwang at gmail.com>
>
> show real information instead of the unknown side data type message for HDR10 stream
>
> Signed-off-by: Limin Wang <lance.lmwang at gmail.com>
> ---
>  libavfilter/vf_showinfo.c | 12 ++++++++++++
>  1 file changed, 12 insertions(+)
>
> diff --git a/libavfilter/vf_showinfo.c b/libavfilter/vf_showinfo.c
> index 9fa322e404..3c13f11524 100644
> --- a/libavfilter/vf_showinfo.c
> +++ b/libavfilter/vf_showinfo.c
> @@ -160,6 +160,15 @@ static void dump_mastering_display(AVFilterContext *ctx, AVFrameSideData *sd)
>             av_q2d(mastering_display->min_luminance), av_q2d(mastering_display->max_luminance));
>  }
>
> +static void dump_content_light_metadata(AVFilterContext *ctx, AVFrameSideData *sd)
> +{
> +    AVContentLightMetadata* metadata = (AVContentLightMetadata*)sd->data;
> +
Add invaild data check? other part is Ok for me
> +    av_log(ctx, AV_LOG_INFO, "Content Light Level information: "
> +           "MaxCLL=%d, MaxFALL=%d",
> +           metadata->MaxCLL, metadata->MaxFALL);
> +}
> +
>  static void dump_color_property(AVFilterContext *ctx, AVFrame *frame)
>  {
>      const char *color_range_str     = av_color_range_name(frame->color_range);
> @@ -301,6 +310,9 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *frame)
>          case AV_FRAME_DATA_MASTERING_DISPLAY_METADATA:
>              dump_mastering_display(ctx, sd);
>              break;
> +        case AV_FRAME_DATA_CONTENT_LIGHT_LEVEL:
> +            dump_content_light_metadata(ctx, sd);
> +            break;
>          default:
>              av_log(ctx, AV_LOG_WARNING, "unknown side data type %d (%d bytes)",
>                     sd->type, sd->size);
> --
> 2.21.0
>