diff options
Diffstat (limited to 'libmpcodecs')
| -rw-r--r-- | libmpcodecs/ad_imaadpcm.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/libmpcodecs/ad_imaadpcm.c b/libmpcodecs/ad_imaadpcm.c index 7a8e89dc41..15340ab0d5 100644 --- a/libmpcodecs/ad_imaadpcm.c +++ b/libmpcodecs/ad_imaadpcm.c @@ -50,10 +50,9 @@ static const int16_t adpcm_step[89] = 15289, 16818, 18500, 20350, 22385, 24623, 27086, 29794, 32767 }; -static const int8_t adpcm_index[16] = +static const int8_t adpcm_index[8] = { -1, -1, -1, -1, 2, 4, 6, 8, - -1, -1, -1, -1, 2, 4, 6, 8 }; // useful macros @@ -144,12 +143,12 @@ static void decode_nibbles(unsigned short *output, for (i = 0; i < output_size; i++) { delta = output[i]; + sign = delta & 8; + delta = delta & 7; index[channel_number] += adpcm_index[delta]; CLAMP_0_TO_88(index[channel_number]); - sign = delta & 8; - delta = delta & 7; delta = 2 * delta + 1; if (sign) delta = -delta; |