- /* check for a do-nothing frame and copy the previous frame */
- if (compression_types[s->compression].algorithm == ALGO_NOP)
- {
- memcpy(s->frame.data[0], s->prev_frame.data[0],
- s->frame.linesize[0] * s->avctx->height);
- } else if (compression_types[s->compression].algorithm == ALGO_RGB24H) {