- /* Frame reordering. This code takes pictures from coding order and sorts
- * them by their incremental POC value into display order. It supports POC
- * gaps, MMCO reset codes and random resets.
- * A "display group" can start either with a IDR frame (f.key_frame = 1),
- * and/or can be closed down with a MMCO reset code. In sequences where
- * there is no delay, we can't detect that (since the frame was already
- * output to the user), so we also set h->mmco_reset to detect the MMCO
- * reset code.
- * FIXME: if we detect insufficient delays (as per h->avctx->has_b_frames),
- * we increase the delay between input and output. All frames affected by
- * the lag (e.g. those that should have been output before another frame
- * that we already returned to the user) will be dropped. This is a bug
- * that we will fix later. */
- for (i = 0; i < MAX_DELAYED_PIC_COUNT; i++) {
- cnt += out->poc < h->last_pocs[i];
- invalid += out->poc == INT_MIN;
- }
- if (!h->mmco_reset && !cur->f.key_frame &&
- cnt + invalid == MAX_DELAYED_PIC_COUNT && cnt > 0) {
- h->mmco_reset = 2;
- if (pics > 1)
- h->delayed_pic[pics - 2]->mmco_reset = 2;
- }
- if (h->mmco_reset || cur->f.key_frame) {
- for (i = 0; i < MAX_DELAYED_PIC_COUNT; i++)
- h->last_pocs[i] = INT_MIN;
- cnt = 0;
- invalid = MAX_DELAYED_PIC_COUNT;
- }