It can be less than -1.
Bug-Id: CID 1194397 / CID 1194398
CC: [email protected]
---
libavcodec/svq1dec.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/libavcodec/svq1dec.c b/libavcodec/svq1dec.c
index 789a013..909ace7 100644
--- a/libavcodec/svq1dec.c
+++ b/libavcodec/svq1dec.c
@@ -191,7 +191,7 @@ static int svq1_decode_block_intra(GetBitContext *bitbuf,
uint8_t *pixels,
continue; /* skip vector */
}
- if (stages > 0 && level >= 4) {
+ if ((stages > 0 && level >= 4) || stages < 0) {
av_dlog(NULL,
"Error (svq1_decode_block_intra): invalid vector:
stages=%i level=%i\n",
stages, level);
@@ -253,7 +253,7 @@ static int svq1_decode_block_non_intra(GetBitContext
*bitbuf, uint8_t *pixels,
if (stages == -1)
continue; /* skip vector */
- if ((stages > 0) && (level >= 4)) {
+ if ((stages > 0 && level >= 4) || stages < 0) {
av_dlog(NULL,
"Error (svq1_decode_block_non_intra): invalid vector:
stages=%i level=%i\n",
stages, level);
--
1.9.0
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