avfilter_formats_ref  207 libavfilter/avfilter.h void avfilter_formats_ref(AVFilterFormats *formats, AVFilterFormats **ref);
avfilter_formats_ref  146 libavfilter/defaults.c             avfilter_formats_ref(formats, &ctx->inputs[i]->out_formats);
avfilter_formats_ref  152 libavfilter/defaults.c             avfilter_formats_ref(formats, &ctx->outputs[i]->in_formats);