lavfi: add frame counter into AVFilterLink and use it in filters.

1 files changed, 2 insertions, 4 deletions

diff --git a/libavfilter/vf_blackdetect.c b/libavfilter/vf_blackdetect.c
index 9c9e6b4993..ddbf082a2d 100644
--- a/libavfilter/vf_blackdetect.c
+++ b/libavfilter/vf_blackdetect.c
@@ -43,7 +43,6 @@ typedef struct {
     double       pixel_black_th;
     unsigned int pixel_black_th_i;
 
-    unsigned int frame_count;       ///< frame number
     unsigned int nb_black_pixels;   ///< number of black pixels counted so far
 } BlackDetectContext;
 
@@ -149,8 +148,8 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *picref)
     picture_black_ratio = (double)blackdetect->nb_black_pixels / (inlink->w * inlink->h);
 
     av_log(ctx, AV_LOG_DEBUG,
-           "frame:%u picture_black_ratio:%f pts:%s t:%s type:%c\n",
-           blackdetect->frame_count, picture_black_ratio,
+           "frame:%"PRId64" picture_black_ratio:%f pts:%s t:%s type:%c\n",
+           inlink->frame_count, picture_black_ratio,
            av_ts2str(picref->pts), av_ts2timestr(picref->pts, &inlink->time_base),
            av_get_picture_type_char(picref->pict_type));
 
@@ -168,7 +167,6 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *picref)
     }
 
     blackdetect->last_picref_pts = picref->pts;
-    blackdetect->frame_count++;
     blackdetect->nb_black_pixels = 0;
     return ff_filter_frame(inlink->dst->outputs[0], picref);
 }