diff options
| -rw-r--r-- | libavcodec/lzo.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/libavcodec/lzo.c b/libavcodec/lzo.c index 54edc800ac..d3849a743d 100644 --- a/libavcodec/lzo.c +++ b/libavcodec/lzo.c @@ -87,11 +87,11 @@ static inline void copy(LZOContext *c, int cnt) { register uint8_t *src = c->in; register uint8_t *dst = c->out; if (cnt > c->in_end - src) { - cnt = c->in_end - src; + cnt = FFMAX(c->in_end - src, 0); c->error |= LZO_INPUT_DEPLETED; } if (cnt > c->out_end - dst) { - cnt = c->out_end - dst; + cnt = FFMAX(c->out_end - dst, 0); c->error |= LZO_OUTPUT_FULL; } #if defined(INBUF_PADDED) && defined(OUTBUF_PADDED) @@ -122,7 +122,7 @@ static inline void copy_backptr(LZOContext *c, int back, int cnt) { return; } if (cnt > c->out_end - dst) { - cnt = c->out_end - dst; + cnt = FFMAX(c->out_end - dst, 0); c->error |= LZO_OUTPUT_FULL; } if (back == 1) { |