avcodec/jpeglsdec: Check ilv for being a supported value

Fixes: 1773/clusterfuzz-testcase-minimized-4832523987189760
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

diff --git a/libavcodec/jpeglsdec.c b/libavcodec/jpeglsdec.c
index 64505321affe3acffe9e1d94a88d0a96e019a7e8..cb2f89a88c3dd9b8beca6f75749e31675bae96bd 100644 (file)
--- a/libavcodec/jpeglsdec.c
+++ b/libavcodec/jpeglsdec.c
@@ -443,6 +443,10 @@ int ff_jpegls_decode_picture(MJpegDecodeContext *s, int near,
         avpriv_report_missing_feature(s->avctx, "Sample interleaved images");
         ret = AVERROR_PATCHWELCOME;
         goto end;
+    } else { /* unknown interleaving */
+        avpriv_report_missing_feature(s->avctx, "Unknown interleaved images");
+        ret = AVERROR_PATCHWELCOME;
+        goto end;
     }
 
     if (s->xfrm && s->nb_components == 3) {