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-rw-r--r--libavcodec/h264_refs.c17
1 files changed, 11 insertions, 6 deletions
diff --git a/libavcodec/h264_refs.c b/libavcodec/h264_refs.c
index 619f2edf84..a3de6b2f35 100644
--- a/libavcodec/h264_refs.c
+++ b/libavcodec/h264_refs.c
@@ -122,6 +122,14 @@ static int add_sorted(H264Picture **sorted, H264Picture **src, int len, int limi
return out_i;
}
+static int mismatches_ref(H264Context *h, H264Picture *pic)
+{
+ AVFrame *f = pic->f;
+ return (h->cur_pic_ptr->f->width != f->width ||
+ h->cur_pic_ptr->f->height != f->height ||
+ h->cur_pic_ptr->f->format != f->format);
+}
+
int ff_h264_fill_default_ref_list(H264Context *h, H264SliceContext *sl)
{
int i, len;
@@ -193,10 +201,7 @@ int ff_h264_fill_default_ref_list(H264Context *h, H264SliceContext *sl)
for (j = 0; j<1+(sl->slice_type_nos == AV_PICTURE_TYPE_B); j++) {
for (i = 0; i < sl->ref_count[j]; i++) {
if (h->default_ref_list[j][i].parent) {
- AVFrame *f = h->default_ref_list[j][i].parent->f;
- if (h->cur_pic_ptr->f->width != f->width ||
- h->cur_pic_ptr->f->height != f->height ||
- h->cur_pic_ptr->f->format != f->format) {
+ if (mismatches_ref(h, h->default_ref_list[j][i].parent)) {
av_log(h->avctx, AV_LOG_ERROR, "Discarding mismatching reference\n");
memset(&h->default_ref_list[j][i], 0, sizeof(h->default_ref_list[j][i]));
}
@@ -298,14 +303,14 @@ int ff_h264_decode_ref_pic_list_reordering(H264Context *h, H264SliceContext *sl)
long_idx = pic_num_extract(h, pic_id, &pic_structure);
- if (long_idx > 31) {
+ if (long_idx > 31U) {
av_log(h->avctx, AV_LOG_ERROR,
"long_term_pic_idx overflow\n");
return AVERROR_INVALIDDATA;
}
ref = h->long_ref[long_idx];
assert(!(ref && !ref->reference));
- if (ref && (ref->reference & pic_structure)) {
+ if (ref && (ref->reference & pic_structure) && !mismatches_ref(h, ref)) {
ref->pic_id = pic_id;
assert(ref->long_ref);
i = 0;