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avcodec/mpeg12dec: use init_get_bits8 and check the return value

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Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
Thierry Foucu 2023-01-04 10:54:24 -08:00 committed by James Almer
parent 99bd2dbc91
commit efbe84eb1b
1 changed files with 3 additions and 1 deletions
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4
libavcodec/mpeg12dec.c
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@ -2550,7 +2550,9 @@ static int decode_chunks(AVCodecContext *avctx, AVFrame *picture,
}
break;
case EXT_START_CODE:
init_get_bits(&s2->gb, buf_ptr, input_size * 8);
ret = init_get_bits8(&s2->gb, buf_ptr, input_size);
if (ret < 0)
return ret;
switch (get_bits(&s2->gb, 4)) {
case 0x1: