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Version 0.1.7 from FTP

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@252 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Mark Spencer
2001-03-22 04:20:13 +00:00
parent 58e773dfe1
commit 1e56a9a9cf
2 changed files with 70 additions and 452 deletions
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76
codecs/codec_gsm.c
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@@ -47,7 +47,7 @@ struct ast_translator_pvt {
/* Space to build offset */
char offset[AST_FRIENDLY_OFFSET];
/* Buffer for our outgoing frame */
gsm_frame outbuf;
short outbuf[8000];
/* Enough to store a full second */
short buf[8000];
int tail;
@@ -118,34 +118,29 @@ static struct ast_frame *gsmtolin_frameout(struct ast_translator_pvt *tmp)
/* Reset tail pointer */
tmp->tail = 0;
#if 0
/* Save a sample frame */
{ static int samplefr = 0;
if (samplefr == 80) {
int fd;
fd = open("gsm.example", O_WRONLY | O_CREAT, 0644);
write(fd, tmp->f.data, tmp->f.datalen);
close(fd);
}
samplefr++;
}
#endif
return &tmp->f;
}
static int gsmtolin_framein(struct ast_translator_pvt *tmp, struct ast_frame *f)
{
/* Assuming there's space left, decode into the current buffer at
the tail location */
if (tmp->tail + 160 < sizeof(tmp->buf)/2) {
if (gsm_decode(tmp->gsm, f->data, tmp->buf + tmp->tail)) {
ast_log(LOG_WARNING, "Invalid GSM data\n");
the tail location. Read in as many frames as there are */
int x;
if (f->datalen % 33) {
ast_log(LOG_WARNING, "Huh? A GSM frame that isn't a multiple of 33 bytes long from %s (%d)?\n", f->src, f->datalen);
return -1;
}
for (x=0;x<f->datalen;x+=33) {
if (tmp->tail + 160 < sizeof(tmp->buf)/2) {
if (gsm_decode(tmp->gsm, f->data + x, tmp->buf + tmp->tail)) {
ast_log(LOG_WARNING, "Invalid GSM data\n");
return -1;
}
tmp->tail+=160;
} else {
ast_log(LOG_WARNING, "Out of buffer space\n");
return -1;
}
tmp->tail+=160;
} else {
ast_log(LOG_WARNING, "Out of buffer space\n");
return -1;
}
return 0;
}
@@ -168,34 +163,32 @@ static int lintogsm_framein(struct ast_translator_pvt *tmp, struct ast_frame *f)
static struct ast_frame *lintogsm_frameout(struct ast_translator_pvt *tmp)
{
int x=0;
/* We can't work on anything less than a frame in size */
if (tmp->tail < 160)
return NULL;
/* Encode a frame of data */
gsm_encode(tmp->gsm, tmp->buf, tmp->outbuf);
tmp->f.frametype = AST_FRAME_VOICE;
tmp->f.subclass = AST_FORMAT_GSM;
tmp->f.datalen = 33;
/* Assume 8000 Hz -- 20 ms */
tmp->f.timelen = 20;
tmp->f.mallocd = 0;
tmp->f.offset = AST_FRIENDLY_OFFSET;
tmp->f.src = __PRETTY_FUNCTION__;
tmp->f.data = tmp->outbuf;
tmp->tail -= 160;
/* Move the data at the end of the buffer to the front */
if (tmp->tail)
memmove(tmp->buf, tmp->buf + 160, tmp->tail * 2);
#if 0
/* Save the frames */
{
static int fd2 = -1;
if (fd2 == -1) {
fd2 = open("gsm.example", O_WRONLY | O_CREAT | O_TRUNC, 0644);
while(tmp->tail >= 160) {
if ((x+1) * 33 >= sizeof(tmp->outbuf)) {
ast_log(LOG_WARNING, "Out of buffer space\n");
return NULL;
}
write(fd2, tmp->f.data, tmp->f.datalen);
}
#endif
/* Encode a frame of data */
gsm_encode(tmp->gsm, tmp->buf, (gsm_byte *) tmp->outbuf + (x * 33));
/* Assume 8000 Hz -- 20 ms */
tmp->tail -= 160;
/* Move the data at the end of the buffer to the front */
if (tmp->tail)
memmove(tmp->buf, tmp->buf + 160, tmp->tail * 2);
x++;
}
tmp->f.datalen = x * 33;
tmp->f.timelen = x * 20;
return &tmp->f;
}
@@ -260,3 +253,8 @@ int usecount(void)
STANDARD_USECOUNT(res);
return res;
}
char *key()
{
return ASTERISK_GPL_KEY;
}