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-rw-r--r--libavcodec/diracdec.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/libavcodec/diracdec.c b/libavcodec/diracdec.c
index c70a0c7902..6e814913d5 100644
--- a/libavcodec/diracdec.c
+++ b/libavcodec/diracdec.c
@@ -996,6 +996,10 @@ static int dirac_unpack_idwt_params(DiracContext *s)
s->lowdelay.quant[level][3] = svq3_get_ue_golomb(gb);
}
} else {
+ if (s->wavelet_depth > 4) {
+ av_log(s->avctx,AV_LOG_ERROR,"Mandatory custom low delay matrix missing for depth %d\n", s->wavelet_depth);
+ return AVERROR_INVALIDDATA;
+ }
/* default quantization matrix */
for (level = 0; level < s->wavelet_depth; level++)
for (i = 0; i < 4; i++) {