diff options
| -rw-r--r-- | libavcodec/dpcm.c | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/libavcodec/dpcm.c b/libavcodec/dpcm.c index ef90ab30e1..a024671fa2 100644 --- a/libavcodec/dpcm.c +++ b/libavcodec/dpcm.c @@ -176,7 +176,6 @@ static int dpcm_decode_frame(AVCodecContext *avctx, int stereo = s->channels - 1; short *output_samples = data; int shift[2]; - unsigned char byte; short diff; if (!buf_size) @@ -266,12 +265,12 @@ static int dpcm_decode_frame(AVCodecContext *avctx, } while (in < buf_size) { - byte = buf[in++]; - diff = (byte & 0xFC) << 8; - if ((byte & 0x03) == 3) + uint8_t n = buf[in++]; + diff = (n & 0xFC) << 8; + if ((n & 0x03) == 3) shift[ch]++; else - shift[ch] -= (2 * (byte & 3)); + shift[ch] -= (2 * (n & 3)); /* saturate the shifter to a lower limit of 0 */ if (shift[ch] < 0) shift[ch] = 0; @@ -303,8 +302,7 @@ static int dpcm_decode_frame(AVCodecContext *avctx, } } else { while (in < buf_size) { - int n; - n = buf[in++]; + uint8_t n = buf[in++]; if (n & 0x80) s->sample[ch] -= s->sol_table[n & 0x7F]; else s->sample[ch] += s->sol_table[n & 0x7F]; s->sample[ch] = av_clip_int16(s->sample[ch]); |