diff --git a/libavcodec/h264.c b/libavcodec/h264.c index e62574f9b6..289f90df2f 100644 --- a/libavcodec/h264.c +++ b/libavcodec/h264.c @@ -1474,6 +1474,24 @@ static void decode_postinit(H264Context *h, int setup_finished){ s->low_delay= 0; } + 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(s->low_delay && cur->f.pict_type == AV_PICTURE_TYPE_B) + out_of_order = FFMAX(out_of_order, 1); + if(s->avctx->has_b_frames < out_of_order && !h->sps.bitstream_restriction_flag){ + av_log(s->avctx, AV_LOG_WARNING, "Increasing reorder buffer to %d\n", out_of_order); + s->avctx->has_b_frames = out_of_order; + s->low_delay = 0; + } + pics = 0; while(h->delayed_pic[pics]) pics++; @@ -1496,21 +1514,7 @@ static void decode_postinit(H264Context *h, int setup_finished){ if(h->sps.bitstream_restriction_flag && s->avctx->has_b_frames >= h->sps.num_reorder_frames) { } - else if (out_of_order && pics-1 == s->avctx->has_b_frames && - s->avctx->has_b_frames < MAX_DELAYED_PIC_COUNT) { - int cnt = 0, invalid = 0; - for (i = 0; i < MAX_DELAYED_PIC_COUNT; i++) { - cnt += out->poc < h->last_pocs[i]; - invalid += h->last_pocs[i] == INT_MIN; - } - if (invalid + cnt < MAX_DELAYED_PIC_COUNT) { - s->avctx->has_b_frames = FFMAX(s->avctx->has_b_frames, cnt); - } else if (cnt) { - for (i = 0; i < MAX_DELAYED_PIC_COUNT; i++) - h->last_pocs[i] = INT_MIN; - } - s->low_delay = 0; - } else if (s->low_delay && + else if (s->low_delay && ((h->next_outputed_poc != INT_MIN && out->poc > h->next_outputed_poc + 2) || cur->f.pict_type == AV_PICTURE_TYPE_B)) { s->low_delay = 0; @@ -1524,8 +1528,6 @@ static void decode_postinit(H264Context *h, int setup_finished){ for(i=out_idx; h->delayed_pic[i]; i++) h->delayed_pic[i] = h->delayed_pic[i+1]; } - memmove(h->last_pocs, &h->last_pocs[1], sizeof(*h->last_pocs) * (MAX_DELAYED_PIC_COUNT - 1)); - h->last_pocs[MAX_DELAYED_PIC_COUNT - 1] = out->poc; if(!out_of_order && pics > s->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)) {