--- libavcodec/h264_refs.c | 30 +++++++++++++++++++----------- 1 file changed, 19 insertions(+), 11 deletions(-)
diff --git a/libavcodec/h264_refs.c b/libavcodec/h264_refs.c index 2a71ac1..755f115 100644 --- a/libavcodec/h264_refs.c +++ b/libavcodec/h264_refs.c @@ -62,20 +62,22 @@ static int split_field_copy(Picture *dest, Picture *src, return match; } -static int build_def_list(Picture *def, Picture **in, int len, int is_long, int sel){ +static int build_def_list(Picture *def, Picture **in, int len, int is_long, + int sel, int index) +{ int i[2]={0}; - int index=0; - while(i[0]<len || i[1]<len){ + while ((i[0] < len || i[1] < len) && index < 32) { while (i[0] < len && !(in[ i[0] ] && (in[ i[0] ]->f.reference & sel))) i[0]++; while (i[1] < len && !(in[ i[1] ] && (in[ i[1] ]->f.reference & (sel^3)))) i[1]++; - if(i[0] < len){ + + if (i[0] < len && index < 32) { in[ i[0] ]->pic_id= is_long ? i[0] : in[ i[0] ]->frame_num; split_field_copy(&def[index++], in[ i[0]++ ], sel , 1); } - if(i[1] < len){ + if (i[1] < len && index < 32) { in[ i[1] ]->pic_id= is_long ? i[1] : in[ i[1] ]->frame_num; split_field_copy(&def[index++], in[ i[1]++ ], sel^3, 0); } @@ -120,11 +122,15 @@ int ff_h264_fill_default_ref_list(H264Context *h){ cur_poc= s->current_picture_ptr->poc; for(list= 0; list<2; list++){ - len= add_sorted(sorted , h->short_ref, h->short_ref_count, cur_poc, 1^list); - len+=add_sorted(sorted+len, h->short_ref, h->short_ref_count, cur_poc, 0^list); + len = add_sorted(sorted , h->short_ref, h->short_ref_count, + cur_poc, 1^list); + len += add_sorted(sorted+len, h->short_ref, h->short_ref_count, + cur_poc, 0^list); assert(len<=32); - len= build_def_list(h->default_ref_list[list] , sorted , len, 0, s->picture_structure); - len+=build_def_list(h->default_ref_list[list]+len, h->long_ref, 16 , 1, s->picture_structure); + len = build_def_list(h->default_ref_list[list], sorted, len, 0, + s->picture_structure, 0); + len = build_def_list(h->default_ref_list[list], h->long_ref, 16, 1, + s->picture_structure, len); assert(len<=32); if(len < h->ref_count[list]) @@ -138,8 +144,10 @@ int ff_h264_fill_default_ref_list(H264Context *h){ FFSWAP(Picture, h->default_ref_list[1][0], h->default_ref_list[1][1]); } }else{ - len = build_def_list(h->default_ref_list[0] , h->short_ref, h->short_ref_count, 0, s->picture_structure); - len+= build_def_list(h->default_ref_list[0]+len, h-> long_ref, 16 , 1, s->picture_structure); + len = build_def_list(h->default_ref_list[0], h->short_ref, + h->short_ref_count, 0, s->picture_structure, 0); + len = build_def_list(h->default_ref_list[0], h-> long_ref, 16, 1, + s->picture_structure, len); assert(len <= 32); if(len < h->ref_count[0]) memset(&h->default_ref_list[0][len], 0, sizeof(Picture)*(h->ref_count[0] - len)); -- 1.7.12.4 _______________________________________________ libav-devel mailing list libav-devel@libav.org https://lists.libav.org/mailman/listinfo/libav-devel