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hevc: check slice address length

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It is used as get_bits argument and reading 0 bits doesn't make sense.

Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
This commit is contained in:
Andreas Cadhalpun 2015-07-10 19:41:43 +02:00 committed by Anton Khirnov
parent a9a2f36130
commit 9f4c7397a2
1 changed files with 1 additions and 1 deletions

2
libavcodec/hevc.c

@ -532,7 +532,7 @@ static int hls_slice_header(HEVCContext *s)
slice_address_length = av_ceil_log2(s->sps->ctb_width *
s->sps->ctb_height);
sh->slice_segment_addr = get_bits(gb, slice_address_length);
sh->slice_segment_addr = slice_address_length ? get_bits(gb, slice_address_length) : 0;
if (sh->slice_segment_addr >= s->sps->ctb_width * s->sps->ctb_height) {
av_log(s->avctx, AV_LOG_ERROR,
"Invalid slice segment address: %u.\n",