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Diffstat (limited to 'apps/recorder/pcm_record.c')
-rw-r--r--apps/recorder/pcm_record.c32
1 files changed, 18 insertions, 14 deletions
diff --git a/apps/recorder/pcm_record.c b/apps/recorder/pcm_record.c
index b5de670c0d..0a6e1b5a51 100644
--- a/apps/recorder/pcm_record.c
+++ b/apps/recorder/pcm_record.c
@@ -873,13 +873,17 @@ static bool open_rec_file(bool create)
static void * ICODE_ATTR
copy_buffer_mono_lr(void *dst, const void *src, size_t src_size)
{
- int16_t *d = dst;
- int16_t const *s = src;
-
- /* mono = (L + R) / 2 */
+ int16_t *d = (int16_t*) dst;
+ int16_t const *s = (int16_t const*) src;
+ ssize_t copy_size = src_size;
+
+ /* mono = (L + R) / 2 */
do
- *d++ = ((int32_t){ *s++ } + *s++ + 1) >> 1;
- while (src_size -= PCM_SAMP_SIZE);
+ {
+ *d++ = ((int32_t){s[0]} + s[1] + 1) >> 1;
+ s+=2;
+ }
+ while ((copy_size -= PCM_SAMP_SIZE) > 0);
return dst;
}
@@ -888,13 +892,13 @@ copy_buffer_mono_lr(void *dst, const void *src, size_t src_size)
static void * ICODE_ATTR
copy_buffer_mono_l(void *dst, const void *src, size_t src_size)
{
- int16_t *d = dst;
- int16_t const *s = (int16_t *)src - 2;
-
+ int16_t *d = (int16_t*)dst;
+ int16_t const *s = (int16_t const*)src - 2;
+ ssize_t copy_size = src_size;
/* mono = L */
do
*d++ = *(s += 2);
- while (src_size -= PCM_SAMP_SIZE);
+ while ((copy_size -= PCM_SAMP_SIZE) > 0);
return dst;
}
@@ -903,13 +907,13 @@ copy_buffer_mono_l(void *dst, const void *src, size_t src_size)
static void * ICODE_ATTR
copy_buffer_mono_r(void *dst, const void *src, size_t src_size)
{
- int16_t *d = dst;
- int16_t const *s = (int16_t *)src - 1;
-
+ int16_t *d = (int16_t*)dst;
+ int16_t const *s = (int16_t const*)src - 1;
+ ssize_t copy_size = src_size;
/* mono = R */
do
*d++ = *(s += 2);
- while (src_size -= PCM_SAMP_SIZE);
+ while ((copy_size -= PCM_SAMP_SIZE) > 0);
return dst;
}