avcodec/iff: Fix bytestream advance

Fixes Ticket5585 Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
9 years ago · c3ad63c6a3
parent bd3fd467fe
commit c3ad63c6a3
1 changed files with 2 additions and 0 deletions
--- a/libavcodec/iff.c
+++ b/libavcodec/iff.c
@ -541,6 +541,8 @@ static int decode_byterun(uint8_t *dst, int dst_size,
        if (value >= 0) {
            length = FFMIN3(value + 1, dst_size - x, bytestream2_get_bytes_left(gb));
            bytestream2_get_buffer(gb, dst + x, length);
+            if (length < value + 1)
+                bytestream2_skip(gb, value + 1 - length);
        } else if (value > -128) {
            length = FFMIN(-value + 1, dst_size - x);
            memset(dst + x, bytestream2_get_byte(gb), length);