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Fix .bnsf key detection in rare cases

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bnnm 2022-02-06 13:14:54 +01:00
parent 878b253c76
commit df1ba64eaf
1 changed files with 2 additions and 2 deletions
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4
src/coding/g7221_decoder_lib.c
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@ -1072,7 +1072,7 @@ static int unpack_frame(int bit_rate, const uint8_t* data, int frame_size, /*int
/* test for errors (in refdec but not Namco's, useful to detect decryption) */
if (test_errors) {
int max_pad_bytes = 0x7; /* usually 0x04 and rarely ~0x07 */
int max_pad_bytes = 0x8; /* usually 0x04 and rarely ~0x08 */
int bits_left = 8 * expected_frame_size - bitpos;
int i, endpos, test_bits;
@ -1088,7 +1088,7 @@ static int unpack_frame(int bit_rate, const uint8_t* data, int frame_size, /*int
return -1;
}
/* extra: test we aren't in the middle of padding (happens with bad keys)
/* extra: test we aren't in the middle of padding (happens with bad keys, this test catches most)
* After reading the whole frame, last bit position should land near last useful
* data, a few bytes into padding, so check there aren't too many padding bits. */
endpos = bitpos;