avcodec/ffv1dec: Print an error if the quant table count is invalid
authorMichael Niedermayer <michael@niedermayer.cc>
Thu, 5 Nov 2015 00:25:50 +0000 (01:25 +0100)
committerMichael Niedermayer <michael@niedermayer.cc>
Thu, 5 Nov 2015 00:31:52 +0000 (01:31 +0100)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
libavcodec/ffv1dec.c

index 8544bb7..0d10114 100644 (file)
@@ -569,8 +569,10 @@ static int read_extra_header(FFV1Context *f)
     }
 
     f->quant_table_count = get_symbol(c, state, 0);
-    if (f->quant_table_count > (unsigned)MAX_QUANT_TABLES || !f->quant_table_count)
+    if (f->quant_table_count > (unsigned)MAX_QUANT_TABLES || !f->quant_table_count) {
+        av_log(f->avctx, AV_LOG_ERROR, "quant table count %d is invalid\n", f->quant_table_count);
         return AVERROR_INVALIDDATA;
+    }
 
     for (i = 0; i < f->quant_table_count; i++) {
         f->context_count[i] = read_quant_tables(c, f->quant_tables[i]);