From a8b254e436dce2f5c8c6459108dab4b02cc6b79b Mon Sep 17 00:00:00 2001
From: Michael Niedermayer <michael@niedermayer.cc>
Date: Thu, 5 Nov 2015 01:25:50 +0100
Subject: [PATCH] avcodec/ffv1dec: Print an error if the quant table count is
invalid
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
libavcodec/ffv1dec.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/libavcodec/ffv1dec.c b/libavcodec/ffv1dec.c
index 8544bb7e0d1..0d10114ae95 100644
--- a/libavcodec/ffv1dec.c
+++ b/libavcodec/ffv1dec.c
@@ -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]);
--
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