} BlackDetectContext;
#define OFFSET(x) offsetof(BlackDetectContext, x)
+#define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
+
static const AVOption blackdetect_options[] = {
- { "d", "set minimum detected black duration in seconds", OFFSET(black_min_duration_time), AV_OPT_TYPE_DOUBLE, {.dbl=2}, 0, DBL_MAX},
- { "black_min_duration", "set minimum detected black duration in seconds", OFFSET(black_min_duration_time), AV_OPT_TYPE_DOUBLE, {.dbl=2}, 0, DBL_MAX},
- { "picture_black_ratio_th", "set the picture black ratio threshold", OFFSET(picture_black_ratio_th), AV_OPT_TYPE_DOUBLE, {.dbl=.98}, 0, 1},
- { "pic_th", "set the picture black ratio threshold", OFFSET(picture_black_ratio_th), AV_OPT_TYPE_DOUBLE, {.dbl=.98}, 0, 1},
- { "pixel_black_th", "set the pixel black threshold", OFFSET(pixel_black_th), AV_OPT_TYPE_DOUBLE, {.dbl=.10}, 0, 1},
- { "pix_th", "set the pixel black threshold", OFFSET(pixel_black_th), AV_OPT_TYPE_DOUBLE, {.dbl=.10}, 0, 1},
+ { "d", "set minimum detected black duration in seconds", OFFSET(black_min_duration_time), AV_OPT_TYPE_DOUBLE, {.dbl=2}, 0, DBL_MAX, FLAGS },
+ { "black_min_duration", "set minimum detected black duration in seconds", OFFSET(black_min_duration_time), AV_OPT_TYPE_DOUBLE, {.dbl=2}, 0, DBL_MAX, FLAGS },
+ { "picture_black_ratio_th", "set the picture black ratio threshold", OFFSET(picture_black_ratio_th), AV_OPT_TYPE_DOUBLE, {.dbl=.98}, 0, 1, FLAGS },
+ { "pic_th", "set the picture black ratio threshold", OFFSET(picture_black_ratio_th), AV_OPT_TYPE_DOUBLE, {.dbl=.98}, 0, 1, FLAGS },
+ { "pixel_black_th", "set the pixel black threshold", OFFSET(pixel_black_th), AV_OPT_TYPE_DOUBLE, {.dbl=.10}, 0, 1, FLAGS },
+ { "pix_th", "set the pixel black threshold", OFFSET(pixel_black_th), AV_OPT_TYPE_DOUBLE, {.dbl=.10}, 0, 1, FLAGS },
{ NULL },
};
blackdetect->class = &blackdetect_class;
av_opt_set_defaults(blackdetect);
- if ((ret = av_set_options_string(blackdetect, args, "=", ":")) < 0) {
- av_log(ctx, AV_LOG_ERROR, "Error parsing options string: '%s'\n", args);
+ if ((ret = av_set_options_string(blackdetect, args, "=", ":")) < 0)
return ret;
- }
return 0;
}
blackdetect->pixel_black_th * 255 :
16 + blackdetect->pixel_black_th * (235 - 16);
- av_log(blackdetect, AV_LOG_INFO,
+ av_log(blackdetect, AV_LOG_VERBOSE,
"black_min_duration:%s pixel_black_th:%f pixel_black_th_i:%d picture_black_ratio_th:%f\n",
av_ts2timestr(blackdetect->black_min_duration, &inlink->time_base),
blackdetect->pixel_black_th, blackdetect->pixel_black_th_i,
return ret;
}
-static void draw_slice(AVFilterLink *inlink, int y, int h, int slice_dir)
+static int draw_slice(AVFilterLink *inlink, int y, int h, int slice_dir)
{
AVFilterContext *ctx = inlink->dst;
BlackDetectContext *blackdetect = ctx->priv;
p += picref->linesize[0];
}
- ff_draw_slice(ctx->outputs[0], y, h, slice_dir);
+ return ff_draw_slice(ctx->outputs[0], y, h, slice_dir);
}
-static void end_frame(AVFilterLink *inlink)
+static int end_frame(AVFilterLink *inlink)
{
AVFilterContext *ctx = inlink->dst;
BlackDetectContext *blackdetect = ctx->priv;
blackdetect->last_picref_pts = picref->pts;
blackdetect->frame_count++;
blackdetect->nb_black_pixels = 0;
- avfilter_unref_buffer(picref);
- ff_end_frame(inlink->dst->outputs[0]);
+ return ff_end_frame(inlink->dst->outputs[0]);
}
AVFilter avfilter_vf_blackdetect = {
.config_props = config_input,
.draw_slice = draw_slice,
.get_video_buffer = ff_null_get_video_buffer,
- .start_frame = ff_null_start_frame_keep_ref,
+ .start_frame = ff_null_start_frame,
.end_frame = end_frame, },
{ .name = NULL }
},
.request_frame = request_frame, },
{ .name = NULL }
},
+ .priv_class = &blackdetect_class,
};