Function parse_outputs

libavfilter/graphparser.c:248–285

}

static int parse_outputs(const char **buf, AVFilterInOut **curr_inputs,
                         AVFilterInOut **open_inputs,
                         AVFilterInOut **open_outputs, AVClass *log_ctx)
{
    int pad = 0;

    while(**buf == '[') {
        char *name = parse_link_name(buf, log_ctx);
        AVFilterInOut *match;

        AVFilterInOut *input = *curr_inputs;
        *curr_inputs = (*curr_inputs)->next;

        if(!name)
            return -1;

        /* First check if the label is not in the open_inputs list */
        match = extract_inout(name, open_inputs);

        if(match) {
            if(link_filter(input->filter, input->pad_idx,
                           match->filter, match->pad_idx, log_ctx) < 0)
                return -1;
            av_free(match->name);
            av_free(name);
            av_free(match);
            av_free(input);
        } else {
            /* Not in the list, so add the first input as a open_output */
            input->name = name;
            insert_inout(open_outputs, input);
        }
        *buf += strspn(*buf, WHITESPACES);
        pad++;
    }

    return pad;
}

int avfilter_graph_parse(AVFilterGraph *graph, const char *filters,
                         AVFilterInOut *open_inputs,