return 0;
}
-static int start_frame(AVFilterLink *inlink, AVFilterBufferRef *picref) { return 0; }
-
-static int draw_slice(AVFilterLink *inlink, int y, int h, int slice_dir) { return 0; }
-
-static int end_frame(AVFilterLink *inlink)
+static int filter_frame(AVFilterLink *inlink, AVFilterBufferRef *cur)
{
DecimateContext *decimate = inlink->dst->priv;
- AVFilterBufferRef *cur = inlink->cur_buf;
AVFilterLink *outlink = inlink->dst->outputs[0];
int ret;
inlink->cur_buf = NULL;
decimate->drop_count = FFMIN(-1, decimate->drop_count-1);
- if ((ret = ff_start_frame(outlink,
- avfilter_ref_buffer(cur, ~AV_PERM_WRITE)) < 0) ||
- (ret = ff_draw_slice(outlink, 0, inlink->h, 1)) < 0 ||
- (ret = ff_end_frame(outlink)) < 0)
+ if (ret = ff_filter_frame(outlink, avfilter_ref_buffer(cur, ~AV_PERM_WRITE)) < 0)
return ret;
}
av_ts2str(cur->pts), av_ts2timestr(cur->pts, &inlink->time_base),
decimate->drop_count);
+ if (decimate->drop_count > 0)
+ avfilter_unref_buffer(cur);
+
return 0;
}
return ret;
}
+static const AVFilterPad decimate_inputs[] = {
+ {
+ .name = "default",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .get_video_buffer = ff_null_get_video_buffer,
+ .config_props = config_input,
+ .filter_frame = filter_frame,
+ .min_perms = AV_PERM_READ | AV_PERM_PRESERVE,
+ },
+ { NULL }
+};
+
+static const AVFilterPad decimate_outputs[] = {
+ {
+ .name = "default",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .request_frame = request_frame,
+ },
+ { NULL }
+};
+
AVFilter avfilter_vf_decimate = {
.name = "decimate",
.description = NULL_IF_CONFIG_SMALL("Remove near-duplicate frames."),
.priv_size = sizeof(DecimateContext),
.query_formats = query_formats,
-
- .inputs = (const AVFilterPad[]) {
- {
- .name = "default",
- .type = AVMEDIA_TYPE_VIDEO,
- .get_video_buffer = ff_null_get_video_buffer,
- .config_props = config_input,
- .start_frame = start_frame,
- .draw_slice = draw_slice,
- .end_frame = end_frame,
- .min_perms = AV_PERM_READ | AV_PERM_PRESERVE,
- },
- { .name = NULL }
- },
- .outputs = (const AVFilterPad[]) {
- {
- .name = "default",
- .type = AVMEDIA_TYPE_VIDEO,
- .request_frame = request_frame,
- },
- { .name = NULL }
- },
+ .inputs = decimate_inputs,
+ .outputs = decimate_outputs,
};