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Fix transcoding performance issue

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@41318 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Mark Spencer
2006-08-30 03:20:54 +00:00
parent 245aa1a62d
commit 35e7066c52
1 changed files with 38 additions and 17 deletions
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55
codecs/codec_zap.c
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@@ -75,6 +75,10 @@ static AST_LIST_HEAD_STATIC(translators, translator);
struct pvt {
int fd;
int fake;
#ifdef DEBUG_TRANSCODE
int totalms;
int lasttotalms;
#endif
struct zt_transcode_header *hdr;
struct ast_frame f;
};
@@ -106,7 +110,7 @@ static int zap_framein(struct ast_trans_pvt *pvt, struct ast_frame *f)
hdr->srcoffset = 0;
}
memcpy(hdr->srcdata + hdr->srcoffset, f->data, f->datalen);
memcpy(hdr->srcdata + hdr->srcoffset + hdr->srclen, f->data, f->datalen);
hdr->srclen += f->datalen;
pvt->samples += f->samples;
@@ -131,24 +135,34 @@ static struct ast_frame *zap_frameout(struct ast_trans_pvt *pvt)
pvt->samples = 0;
} else if (ztp->fake == 1) {
return NULL;
} else if (!hdr->srclen) {
return NULL;
} else {
hdr->dstoffset = 0;
hdr->dstlen = 0;
x = ZT_TCOP_TRANSCODE;
if (ioctl(ztp->fd, ZT_TRANSCODE_OP, &x))
ast_log(LOG_WARNING, "Failed to transcode: %s\n", strerror(errno));
if (!hdr->dstlen)
if (hdr->dstlen) {
#ifdef DEBUG_TRANSCODE
ztp->totalms += hdr->dstsamples;
if ((ztp->totalms - ztp->lasttotalms) > 8000) {
printf("Whee %p, %d (%d to %d)\n", ztp, hdr->dstlen, ztp->lasttotalms, ztp->totalms);
ztp->lasttotalms = ztp->totalms;
}
#endif
ztp->f.frametype = AST_FRAME_VOICE;
ztp->f.subclass = hdr->dstfmt;
ztp->f.samples = hdr->dstsamples;
ztp->f.data = hdr->dstdata + hdr->dstoffset;
ztp->f.offset = hdr->dstoffset;
ztp->f.datalen = hdr->dstlen;
ztp->f.mallocd = 0;
pvt->samples -= ztp->f.samples;
hdr->dstlen = 0;
} else {
if (hdr->srclen) {
hdr->dstoffset = AST_FRIENDLY_OFFSET;
x = ZT_TCOP_TRANSCODE;
if (ioctl(ztp->fd, ZT_TRANSCODE_OP, &x))
ast_log(LOG_WARNING, "Failed to transcode: %s\n", strerror(errno));
}
return NULL;
ztp->f.frametype = AST_FRAME_VOICE;
ztp->f.subclass = hdr->dstfmt;
ztp->f.samples = hdr->dstsamples;
ztp->f.data = hdr->dstdata + hdr->dstoffset;
ztp->f.offset = hdr->dstoffset;
ztp->f.datalen = hdr->dstlen;
ztp->f.mallocd = 0;
pvt->samples -= ztp->f.samples;
}
}
return &ztp->f;
@@ -169,9 +183,16 @@ static int zap_translate(struct ast_trans_pvt *pvt, int dest, int source)
unsigned int x = ZT_TCOP_RESET;
struct pvt *ztp = pvt->pvt;
struct zt_transcode_header *hdr;
int flags;
if ((fd = open("/dev/zap/transcode", O_RDWR)) < 0)
return -1;
flags = fcntl(fd, F_GETFL);
if (flags > - 1) {
if (fcntl(fd, F_SETFL, flags | O_NONBLOCK))
ast_log(LOG_WARNING, "Could not set non-block mode!\n");
}
if ((hdr = mmap(NULL, sizeof(*hdr), PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0)) == MAP_FAILED) {
ast_log(LOG_ERROR, "Memory Map failed for transcoding (%s)\n", strerror(errno));