-/**
- * Run setup operations that must be run after slice header decoding.
- * This includes finding the next displayed frame.
- *
- * @param h h264 master context
- * @param setup_finished enough NALs have been read that we can call
- * ff_thread_finish_setup()
- */
-static void decode_postinit(H264Context *h, int setup_finished)
-{
- const SPS *sps = h->ps.sps;
- H264Picture *out = h->cur_pic_ptr;
- H264Picture *cur = h->cur_pic_ptr;
- int i, pics, out_of_order, out_idx;
-
- if (h->next_output_pic)
- return;
-
- if (cur->field_poc[0] == INT_MAX || cur->field_poc[1] == INT_MAX) {
- /* FIXME: if we have two PAFF fields in one packet, we can't start
- * the next thread here. If we have one field per packet, we can.
- * The check in decode_nal_units() is not good enough to find this
- * yet, so we assume the worst for now. */
- // if (setup_finished)
- // ff_thread_finish_setup(h->avctx);
- if (cur->field_poc[0] == INT_MAX && cur->field_poc[1] == INT_MAX)
- return;
- if (h->avctx->hwaccel || h->missing_fields <=1)
- return;
- }
-
- cur->mmco_reset = h->mmco_reset;
- h->mmco_reset = 0;
-
- // FIXME do something with unavailable reference frames
-
- /* Sort B-frames into display order */
- if (sps->bitstream_restriction_flag ||
- h->avctx->strict_std_compliance >= FF_COMPLIANCE_STRICT) {
- h->avctx->has_b_frames = FFMAX(h->avctx->has_b_frames, sps->num_reorder_frames);
- }
-
- for (i = 0; 1; i++) {
- if(i == MAX_DELAYED_PIC_COUNT || cur->poc < h->last_pocs[i]){
- if(i)
- h->last_pocs[i-1] = cur->poc;
- break;
- } else if(i) {
- h->last_pocs[i-1]= h->last_pocs[i];
- }
- }
- out_of_order = MAX_DELAYED_PIC_COUNT - i;
- if( cur->f->pict_type == AV_PICTURE_TYPE_B
- || (h->last_pocs[MAX_DELAYED_PIC_COUNT-2] > INT_MIN && h->last_pocs[MAX_DELAYED_PIC_COUNT-1] - h->last_pocs[MAX_DELAYED_PIC_COUNT-2] > 2))
- out_of_order = FFMAX(out_of_order, 1);
- if (out_of_order == MAX_DELAYED_PIC_COUNT) {
- av_log(h->avctx, AV_LOG_VERBOSE, "Invalid POC %d<%d\n", cur->poc, h->last_pocs[0]);
- for (i = 1; i < MAX_DELAYED_PIC_COUNT; i++)
- h->last_pocs[i] = INT_MIN;
- h->last_pocs[0] = cur->poc;
- cur->mmco_reset = 1;
- } else if(h->avctx->has_b_frames < out_of_order && !sps->bitstream_restriction_flag){
- int loglevel = h->avctx->frame_number > 1 ? AV_LOG_WARNING : AV_LOG_VERBOSE;
- av_log(h->avctx, loglevel, "Increasing reorder buffer to %d\n", out_of_order);
- h->avctx->has_b_frames = out_of_order;
- }
-
- pics = 0;
- while (h->delayed_pic[pics])
- pics++;
-
- av_assert0(pics <= MAX_DELAYED_PIC_COUNT);
-
- h->delayed_pic[pics++] = cur;
- if (cur->reference == 0)
- cur->reference = DELAYED_PIC_REF;
-
- out = h->delayed_pic[0];
- out_idx = 0;
- for (i = 1; h->delayed_pic[i] &&
- !h->delayed_pic[i]->f->key_frame &&
- !h->delayed_pic[i]->mmco_reset;
- i++)
- if (h->delayed_pic[i]->poc < out->poc) {
- out = h->delayed_pic[i];
- out_idx = i;
- }
- if (h->avctx->has_b_frames == 0 &&
- (h->delayed_pic[0]->f->key_frame || h->delayed_pic[0]->mmco_reset))
- h->next_outputed_poc = INT_MIN;
- out_of_order = out->poc < h->next_outputed_poc;
-
- if (out_of_order || pics > h->avctx->has_b_frames) {
- out->reference &= ~DELAYED_PIC_REF;
- for (i = out_idx; h->delayed_pic[i]; i++)
- h->delayed_pic[i] = h->delayed_pic[i + 1];
- }
- if (!out_of_order && pics > h->avctx->has_b_frames) {
- h->next_output_pic = out;
- if (out_idx == 0 && h->delayed_pic[0] && (h->delayed_pic[0]->f->key_frame || h->delayed_pic[0]->mmco_reset)) {
- h->next_outputed_poc = INT_MIN;
- } else
- h->next_outputed_poc = out->poc;
- } else {
- av_log(h->avctx, AV_LOG_DEBUG, "no picture %s\n", out_of_order ? "ooo" : "");
- }
-
- if (h->next_output_pic) {
- if (h->next_output_pic->recovered) {
- // We have reached an recovery point and all frames after it in
- // display order are "recovered".
- h->frame_recovered |= FRAME_RECOVERED_SEI;
- }
- h->next_output_pic->recovered |= !!(h->frame_recovered & FRAME_RECOVERED_SEI);
- }
-
- if (setup_finished && !h->avctx->hwaccel) {
- ff_thread_finish_setup(h->avctx);
-
- if (h->avctx->active_thread_type & FF_THREAD_FRAME)
- h->setup_finished = 1;
- }
-}
-