35     DataContext *dc = h->priv_data;  in data_open()  local
83         dc->data = dc->tofree = ddata;  in data_open()
84         dc->size = ret;  in data_open()
86         dc->data = data;  in data_open()
87         dc->size = in_size;  in data_open()
94     DataContext *dc = h->priv_data;  in data_close()  local
96     av_freep(&dc->tofree);  in data_close()
102     DataContext *dc = h->priv_data;  in data_read()  local
104     if (dc->pos >= dc->size)  in data_read()
106     size = FFMIN(size, dc->size - dc->pos);  in data_read()
107     memcpy(buf, dc->data + dc->pos, size);  in data_read()
108     dc->pos += size;  in data_read()