libavcodec/ac3dec.c: Avoid unspecific -1 error code

Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

diff --git a/libavcodec/ac3dec.c b/libavcodec/ac3dec.c
index 71419458fa44022c5df076c6a418b2ac5888318e..ba731314b4886757883b6124f7be00a42a957d3b 100644 (file)
--- a/libavcodec/ac3dec.c
+++ b/libavcodec/ac3dec.c
@@ -452,7 +452,7 @@ static int decode_exponents(AC3DecodeContext *s,
         prevexp += dexp[i] - 2;
         if (prevexp > 24U) {
             av_log(s->avctx, AV_LOG_ERROR, "exponent %d is out-of-range\n", prevexp);
-            return -1;
+            return AVERROR_INVALIDDATA;
         }
         switch (group_size) {
         case 4: dexps[j++] = prevexp;