[FFmpeg-devel] [PATCH V1] lavf/showinfo: support mastering display sidedata

[Steven Liu]

> 在 2019年8月4日，18:30，Jun Zhao <mypopydev at gmail.com> 写道：
> 
> From: Jun Zhao <barryjzhao at tencent.com>
> 
> support mastering display sidedata.
> 
> Signed-off-by: Jun Zhao <barryjzhao at tencent.com>
> ---
> libavfilter/vf_showinfo.c |   30 ++++++++++++++++++++++++++++++
> 1 files changed, 30 insertions(+), 0 deletions(-)
> 
> diff --git a/libavfilter/vf_showinfo.c b/libavfilter/vf_showinfo.c
> index f6f8f49..8889c01 100644
> --- a/libavfilter/vf_showinfo.c
> +++ b/libavfilter/vf_showinfo.c
> @@ -34,6 +34,7 @@
> #include "libavutil/stereo3d.h"
> #include "libavutil/timestamp.h"
> #include "libavutil/timecode.h"
> +#include "libavutil/mastering_display_metadata.h"
> 
> #include "avfilter.h"
> #include "internal.h"
> @@ -133,6 +134,32 @@ static void dump_roi(AVFilterContext *ctx, AVFrameSideData *sd)
>    }
> }
> 
> +static void dump_mastering_display(AVFilterContext *ctx, AVFrameSideData *sd)
> +{
> +    AVMasteringDisplayMetadata *mastering_display;
> +
> +    av_log(ctx, AV_LOG_INFO, "mastering display: ");
> +    if (sd->size < sizeof(*mastering_display)) {
> +        av_log(ctx, AV_LOG_INFO, "invalid data”);
Why don’t use ERROR level if it is invalid data?
> +        return;
> +    }
> +
> +    mastering_display = (AVMasteringDisplayMetadata *)sd->data;
> +
> +    av_log(ctx, AV_LOG_INFO, "has_primaries:%d has_luminance:%d "
> +           "r(%5.4f,%5.4f) g(%5.4f,%5.4f) b(%5.4f %5.4f) wp(%5.4f, %5.4f) "
> +           "min_luminance=%f, max_luminance=%f",
> +           mastering_display->has_primaries, mastering_display->has_luminance,
> +           av_q2d(mastering_display->display_primaries[0][0]),
> +           av_q2d(mastering_display->display_primaries[0][1]),
> +           av_q2d(mastering_display->display_primaries[1][0]),
> +           av_q2d(mastering_display->display_primaries[1][1]),
> +           av_q2d(mastering_display->display_primaries[2][0]),
> +           av_q2d(mastering_display->display_primaries[2][1]),
> +           av_q2d(mastering_display->white_point[0]), av_q2d(mastering_display->white_point[1]),
> +           av_q2d(mastering_display->min_luminance), av_q2d(mastering_display->max_luminance));
> +}
> +
> static void dump_color_property(AVFilterContext *ctx, AVFrame *frame)
> {
>    const char *color_range_str     = av_color_range_name(frame->color_range);
> @@ -271,6 +298,9 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *frame)
>        case AV_FRAME_DATA_REGIONS_OF_INTEREST:
>            dump_roi(ctx, sd);
>            break;
> +        case AV_FRAME_DATA_MASTERING_DISPLAY_METADATA:
> +            dump_mastering_display(ctx, sd);
> +            break;
>        default:
>            av_log(ctx, AV_LOG_WARNING, "unknown side data type %d (%d bytes)",
>                   sd->type, sd->size);
> -- 
> 1.7.1
> 
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Thanks
--------------------------------
刘歧|CDN|研发总监
吉林省高升科技有限公司北京分公司
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Thanks
Steven