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ws_snd: use memcpy() and memset() instead of loops

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This commit is contained in:
Justin Ruggles 2011-09-12 10:04:37 -04:00
parent 6896aa7a38
commit 618b067d21
1 changed files with 6 additions and 9 deletions
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15
libavcodec/ws-snd1.c
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@ -60,7 +60,6 @@ static int ws_snd_decode_frame(AVCodecContext *avctx,
int in_size, out_size; int in_size, out_size;
int sample = 128; int sample = 128;
int i;
uint8_t *samples = data; uint8_t *samples = data;
uint8_t *samples_end; uint8_t *samples_end;
@ -87,8 +86,7 @@ static int ws_snd_decode_frame(AVCodecContext *avctx,
samples_end = samples + out_size; samples_end = samples + out_size;
if (in_size == out_size) { if (in_size == out_size) {
for (i = 0; i < out_size; i++) memcpy(samples, buf, out_size);
*samples++ = *buf++;
*data_size = out_size; *data_size = out_size;
return buf_size; return buf_size;
} }
@ -153,16 +151,15 @@ static int ws_snd_decode_frame(AVCodecContext *avctx,
sample = av_clip_uint8(sample); sample = av_clip_uint8(sample);
*samples++ = sample; *samples++ = sample;
} else { /* copy */ } else { /* copy */
for (count++; count > 0; count--) { memcpy(samples, buf, smp);
*samples++ = *buf++; samples += smp;
} buf += smp;
sample = buf[-1]; sample = buf[-1];
} }
break; break;
default: /* run */ default: /* run */
for(count++; count > 0; count--) { memset(samples, sample, smp);
*samples++ = sample; samples += smp;
}
} }
} }