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authorMax Kellermann <max@duempel.org>2011-10-09 12:37:32 +0200
committerMax Kellermann <max@duempel.org>2011-10-10 10:24:06 +0200
commit20c6159c041cc5ec644c51009503cf6801b6fcab (patch)
tree55e38810c32ca6059bafd61578705172feb299e2 /src/pcm_dither.c
parenta47e9d1a4b5bd6b999eaec33624d7c96a29f24e6 (diff)
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pcm_dither: pass an "end" pointer instead of a sample count
This is easier and more efficient to loop on, because only two variables get modified (src and dest).
Diffstat (limited to '')
-rw-r--r--src/pcm_dither.c10
1 files changed, 4 insertions, 6 deletions
diff --git a/src/pcm_dither.c b/src/pcm_dither.c
index a75b07e5d..4811946c8 100644
--- a/src/pcm_dither.c
+++ b/src/pcm_dither.c
@@ -72,10 +72,9 @@ pcm_dither_sample_24_to_16(int32_t sample, struct pcm_dither *dither)
void
pcm_dither_24_to_16(struct pcm_dither *dither,
- int16_t *dest, const int32_t *src,
- unsigned num_samples)
+ int16_t *dest, const int32_t *src, const int32_t *src_end)
{
- while (num_samples-- > 0)
+ while (src < src_end)
*dest++ = pcm_dither_sample_24_to_16(*src++, dither);
}
@@ -87,9 +86,8 @@ pcm_dither_sample_32_to_16(int32_t sample, struct pcm_dither *dither)
void
pcm_dither_32_to_16(struct pcm_dither *dither,
- int16_t *dest, const int32_t *src,
- unsigned num_samples)
+ int16_t *dest, const int32_t *src, const int32_t *src_end)
{
- while (num_samples-- > 0)
+ while (src < src_end)
*dest++ = pcm_dither_sample_32_to_16(*src++, dither);
}