From 5f856ea9979172241a74b76e9f8c43854e7bc1ee Mon Sep 17 00:00:00 2001 From: Russell Bryant Date: Fri, 5 May 2006 21:36:17 +0000 Subject: minor code optimizations to reduce the number of times that the ast_frame and ast_trans_pvt pointers have to be dereferenced (issue #7069, Mithraen) git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@25059 65c4cc65-6c06-0410-ace0-fbb531ad65f3 --- codecs/codec_alaw.c | 24 ++++++++++++++---------- 1 file changed, 14 insertions(+), 10 deletions(-) (limited to 'codecs/codec_alaw.c') diff --git a/codecs/codec_alaw.c b/codecs/codec_alaw.c index d654e21e4..8ca185f75 100644 --- a/codecs/codec_alaw.c +++ b/codecs/codec_alaw.c @@ -57,25 +57,29 @@ static int alawtolin_framein(struct ast_trans_pvt *pvt, struct ast_frame *f) int i; unsigned char *src = f->data; int16_t *dst = (int16_t *)pvt->outbuf; - - for ( i = 0; i < f->samples; i++) - dst[pvt->samples + i] = AST_ALAW(src[i]); - pvt->samples += f->samples; - pvt->datalen += 2*f->samples; /* 2 bytes/sample */ + int in_samples = f->samples; + int out_samples = pvt->samples; + + for (i = 0; i < in_samples; i++) + dst[out_samples++] = AST_ALAW(src[i]); + + pvt->samples = out_samples; + pvt->datalen += in_samples * 2; /* 2 bytes/sample */ return 0; } /*! \brief convert and store input samples in output buffer */ static int lintoalaw_framein(struct ast_trans_pvt *pvt, struct ast_frame *f) { - int x; + int i; char *dst = pvt->outbuf + pvt->samples; int16_t *src = f->data; + int in_samples = f->samples; - for ( x = 0; x < f->samples; x++) - *dst++ = AST_LIN2A(src[x]); - pvt->samples += f->samples; - pvt->datalen += f->samples; /* 1 byte/sample */ + for (i = 0; i < in_samples; i++) + *dst++ = AST_LIN2A(src[i]); + pvt->samples += in_samples; + pvt->datalen += in_samples; /* 1 byte/sample */ return 0; } -- cgit v1.2.3