38     struct concat_nodes *nodes;    ///< list of nodes to concat  member
49     struct concat_nodes *nodes = data->nodes;  in concat_close()  local
52         err |= ffurl_closep(&nodes[i].uc);  in concat_close()
54     av_freep(&data->nodes);  in concat_close()
67     struct concat_nodes *nodes;  in concat_open()  local
80     if (!(nodes = av_realloc_array(NULL, len, sizeof(*nodes))))  in concat_open()
83         data->nodes = nodes;  in concat_open()
110         nodes[i].uc   = uc;  in concat_open()
111         nodes[i].size = size;  in concat_open()
119     else if (!(nodes = av_realloc(nodes, data->length * sizeof(*nodes)))) {  in concat_open()
123         data->nodes = nodes;  in concat_open()
132     struct concat_nodes *nodes = data->nodes;  in concat_read()  local
136         result = ffurl_read(nodes[i].uc, buf, size);  in concat_read()
139                 ffurl_seek(nodes[++i].uc, 0, SEEK_SET) < 0)  in concat_read()
157     struct concat_nodes *nodes = data->nodes;  in concat_seek()  local
164         for (i = data->length - 1; i && pos < -nodes[i].size; i--)  in concat_seek()
165             pos += nodes[i].size;  in concat_seek()
170             pos += nodes[i].size;  in concat_seek()
171         pos += ffurl_seek(nodes[i].uc, 0, SEEK_CUR);  in concat_seek()
175         for (i = 0; i != data->length - 1 && pos >= nodes[i].size; i++)  in concat_seek()
176             pos -= nodes[i].size;  in concat_seek()
182     result = ffurl_seek(nodes[i].uc, pos, whence);  in concat_seek()
186             result += nodes[--i].size;  in concat_seek()