The `hq_ac_vlc.table` in incomplete.
---

If the table is complete get_vlc2 always return a value from it, otherwise
you get a -1.

 libavcodec/hq_hqa.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/libavcodec/hq_hqa.c b/libavcodec/hq_hqa.c
index 4b18eae..ae378e6 100644
--- a/libavcodec/hq_hqa.c
+++ b/libavcodec/hq_hqa.c
@@ -75,7 +75,10 @@ static int hq_decode_block(HQContext *c, GetBitContext *gb, 
int16_t block[64],
     }

     for (;;) {
-        val  = get_vlc2(gb, c->hq_ac_vlc.table, 9, 2);
+        val = get_vlc2(gb, c->hq_ac_vlc.table, 9, 2);
+        if (val < 0)
+            return AVERROR_INVALIDDATA;
+
         pos += ff_hq_ac_skips[val];
         if (pos >= 64)
             break;
--
1.9.0

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