[FFmpeg-cvslog] ws_snd: use memcpy() and memset() instead of loops
Justin Ruggles
git at videolan.org
Tue Sep 27 02:25:31 CEST 2011
ffmpeg | branch: master | Justin Ruggles <justin.ruggles at gmail.com> | Mon Sep 12 10:04:37 2011 -0400| [618b067d2132b0336e609bc311e85c557ffb30ed] | committer: Justin Ruggles
ws_snd: use memcpy() and memset() instead of loops
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=618b067d2132b0336e609bc311e85c557ffb30ed
---
libavcodec/ws-snd1.c | 15 ++++++---------
1 files changed, 6 insertions(+), 9 deletions(-)
diff --git a/libavcodec/ws-snd1.c b/libavcodec/ws-snd1.c
index 3842ec9..57902a8 100644
--- a/libavcodec/ws-snd1.c
+++ b/libavcodec/ws-snd1.c
@@ -60,7 +60,6 @@ static int ws_snd_decode_frame(AVCodecContext *avctx,
int in_size, out_size;
int sample = 128;
- int i;
uint8_t *samples = data;
uint8_t *samples_end;
@@ -87,8 +86,7 @@ static int ws_snd_decode_frame(AVCodecContext *avctx,
samples_end = samples + out_size;
if (in_size == out_size) {
- for (i = 0; i < out_size; i++)
- *samples++ = *buf++;
+ memcpy(samples, buf, out_size);
*data_size = out_size;
return buf_size;
}
@@ -153,16 +151,15 @@ static int ws_snd_decode_frame(AVCodecContext *avctx,
sample = av_clip_uint8(sample);
*samples++ = sample;
} else { /* copy */
- for (count++; count > 0; count--) {
- *samples++ = *buf++;
- }
+ memcpy(samples, buf, smp);
+ samples += smp;
+ buf += smp;
sample = buf[-1];
}
break;
default: /* run */
- for(count++; count > 0; count--) {
- *samples++ = sample;
- }
+ memset(samples, sample, smp);
+ samples += smp;
}
}
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