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avformat/adtsenc: return value check for init_get_bits in adts_decode_extradata

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

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 9ffa49496d1aae4cbbb387aac28a9e061a6ab0a6)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
maryam ebrahimzadeh 2021-08-04 16:15:18 -04:00 committed by Michael Niedermayer
parent 1e198bd926
commit bc9e0b6cd2
1 changed files with 4 additions and 2 deletions
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6
libavformat/adtsenc.c
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@ -50,9 +50,11 @@ static int adts_decode_extradata(AVFormatContext *s, ADTSContext *adts, const ui
GetBitContext gb; GetBitContext gb;
PutBitContext pb; PutBitContext pb;
MPEG4AudioConfig m4ac; MPEG4AudioConfig m4ac;
int off; int off, ret;
init_get_bits(&gb, buf, size * 8); ret = init_get_bits8(&gb, buf, size);
if (ret < 0)
return ret;
off = avpriv_mpeg4audio_get_config(&m4ac, buf, size * 8, 1); off = avpriv_mpeg4audio_get_config(&m4ac, buf, size * 8, 1);
if (off < 0) if (off < 0)
return off; return off;