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avcodec/vp6: return value check for init_get_bits 

As the second argument for init_get_bits(buf) can be crafted,
a return value check for this function call is necessary.
Also replace init_get_bits with init_get_bits8.

Signed-off-by: Peter Ross <pross@xvid.org>
This commit is contained in:
maryam ebrahimzadeh 2021-08-23 14:35:01 -04:00 committed by Peter Ross
parent afeefb306e
commit ad88cce3f8
1 changed files with 3 additions and 1 deletions
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4
libavcodec/vp6.c
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@ -167,7 +167,9 @@ static int vp6_parse_header(VP56Context *s, const uint8_t *buf, int buf_size)
}
if (s->use_huffman) {
s->parse_coeff = vp6_parse_coeff_huffman;
init_get_bits(&s->gb, buf, buf_size<<3);
ret = init_get_bits8(&s->gb, buf, buf_size);
if (ret < 0)
return ret;
} else {
ret = ff_vp56_init_range_decoder(&s->cc, buf, buf_size);
if (ret < 0)