return 0;
}
-int avfilter_config_link(AVFilterLink *link)
+int avfilter_config_links(AVFilterContext *filter)
{
int (*config_link)(AVFilterLink *);
+ unsigned i;
- if(!link)
- return 0;
+ for(i = 0; i < filter->input_count; i ++) {
+ AVFilterLink *link;
+
+ if(!(link = filter->inputs[i])) continue;
+
+ switch(link->init_state) {
+ case AVLINK_INIT:
+ continue;
+ case AVLINK_STARTINIT:
+ av_log(filter, AV_LOG_ERROR, "circular filter chain detected\n");
+ return -1;
+ case AVLINK_UNINIT:
+ link->init_state = AVLINK_STARTINIT;
+
+ if(avfilter_config_links(link->src))
+ return -1;
if(!(config_link = link_spad(link).config_props))
config_link = avfilter_default_config_output_link;
if(config_link(link))
return -1;
- if(!(config_link = link_dpad(link).config_props))
- config_link = avfilter_default_config_input_link;
+ if((config_link = link_dpad(link).config_props))
if(config_link(link))
return -1;
+ link->init_state = AVLINK_INIT;
+ }
+ }
+
return 0;
}