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minor performance improvement

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@42477 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Kevin P. Fleming
2006-09-08 21:33:32 +00:00
parent 160cea6139
commit c63fe750bb
4 changed files with 22 additions and 18 deletions
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13
codecs/codec_speex.c
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@@ -274,11 +274,11 @@ static struct ast_frame *lintospeex_frameout(struct ast_trans_pvt *pvt)
#ifdef _SPEEX_TYPES_H
/* Preprocess audio */
if (preproc)
is_speech = speex_preprocess(tmp->pp, tmp->buf, NULL);
is_speech = speex_preprocess(tmp->pp, tmp->buf + samples, NULL);
/* Encode a frame of data */
if (is_speech) {
/* If DTX enabled speex_encode returns 0 during silence */
is_speech = speex_encode_int(tmp->speex, tmp->buf, &tmp->bits) || !dtx;
is_speech = speex_encode_int(tmp->speex, tmp->buf + samples, &tmp->bits) || !dtx;
} else {
/* 5 zeros interpreted by Speex as silence (submode 0) */
speex_bits_pack(&tmp->bits, 0, 5);
@@ -289,18 +289,19 @@ static struct ast_frame *lintospeex_frameout(struct ast_trans_pvt *pvt)
int x;
/* Convert to floating point */
for (x = 0; x < tmp->framesize; x++)
fbuf[x] = tmp->buf[x];
fbuf[x] = tmp->buf[samples + x];
/* Encode a frame of data */
is_speech = speex_encode(tmp->speex, fbuf, &tmp->bits) || !dtx;
}
#endif
samples += tmp->framesize;
pvt->samples -= tmp->framesize;
/* Move the data at the end of the buffer to the front */
if (pvt->samples)
memmove(tmp->buf, tmp->buf + tmp->framesize, pvt->samples * 2);
}
/* Move the data at the end of the buffer to the front */
if (pvt->samples)
memmove(tmp->buf, tmp->buf + samples, pvt->samples * 2);
/* Use AST_FRAME_CNG to signify the start of any silence period */
if (is_speech) {
tmp->silent_state = 0;