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add some code optimizations, see the report for an explanation

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(issue #7105, Mithraen)


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@29018 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Russell Bryant
2006-05-20 13:37:11 +00:00
parent 9d53a3e7f5
commit b88c06b8b5
4 changed files with 27 additions and 26 deletions
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8
codecs/codec_a_mu.c
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@@ -55,12 +55,12 @@ static unsigned char a2mu[256];
/*! \brief convert frame data and store into the buffer */
static int alawtoulaw_framein(struct ast_trans_pvt *pvt, struct ast_frame *f)
{
int i;
int x = f->samples;
int in_samples = f->samples;
unsigned char *src = f->data;
unsigned char *dst = (unsigned char *)pvt->outbuf + pvt->samples;
for (i = 0; i < in_samples; i++)
while (x--)
*dst++ = a2mu[*src++];
pvt->samples += in_samples;
pvt->datalen += in_samples;
@@ -70,12 +70,12 @@ static int alawtoulaw_framein(struct ast_trans_pvt *pvt, struct ast_frame *f)
/*! \brief convert frame data and store into the buffer */
static int ulawtoalaw_framein(struct ast_trans_pvt *pvt, struct ast_frame *f)
{
int i;
int x = f->samples;
int in_samples = f->samples;
unsigned char *src = f->data;
unsigned char *dst = (unsigned char *)pvt->outbuf + pvt->samples;
for (i = 0; i < in_samples; i++)
while (x--)
*dst++ = mu2a[*src++];
pvt->samples += in_samples;
pvt->datalen += in_samples;