static int wav_write(struct ast_filestream *s, struct ast_frame *f)
{
int len;
int size;
struct wavg_desc *fs = (struct wavg_desc *)s->_private;
if (f->frametype != AST_FRAME_VOICE) {
ast_log(LOG_WARNING, "Asked to write non-voice frame!\n");
return -1;
}
if (f->subclass.format.id != AST_FORMAT_GSM) {
ast_log(LOG_WARNING, "Asked to write non-GSM frame (%s)!\n", ast_getformatname(&f->subclass.format));
return -1;
}
/* XXX this might fail... if the input is a multiple of MSGSM_FRAME_SIZE
* we assume it is already in the correct format.
*/
if (!(f->datalen % MSGSM_FRAME_SIZE)) {
size = MSGSM_FRAME_SIZE;
fs->secondhalf = 0;
} else {
size = GSM_FRAME_SIZE;
}
for (len = 0; len < f->datalen ; len += size) {
int res;
unsigned char *src, msdata[MSGSM_FRAME_SIZE];
if (fs->secondhalf) { /* second half of raw gsm to be converted */
memcpy(s->buf + GSM_FRAME_SIZE, f->data.ptr + len, GSM_FRAME_SIZE);
conv66((unsigned char *) s->buf, msdata);
src = msdata;
fs->secondhalf = 0;
} else if (size == GSM_FRAME_SIZE) { /* first half of raw gsm */
memcpy(s->buf, f->data.ptr + len, GSM_FRAME_SIZE);
src = NULL; /* nothing to write */
fs->secondhalf = 1;
} else { /* raw msgsm data */
src = f->data.ptr + len;
}
if (src && (res = fwrite(src, 1, MSGSM_FRAME_SIZE, s->f)) != MSGSM_FRAME_SIZE) {
ast_log(LOG_WARNING, "Bad write (%d/65): %s\n", res, strerror(errno));
return -1;
}
update_header(s->f); /* XXX inefficient! */
}
return 0;
}
static int wav_write(struct ast_filestream *fs, struct ast_frame *f)
{
int res;
char msdata[66];
int len =0;
int alreadyms=0;
if (f->frametype != AST_FRAME_VOICE) {
ast_log(LOG_WARNING, "Asked to write non-voice frame!\n");
return -1;
}
if (f->subclass != AST_FORMAT_GSM) {
ast_log(LOG_WARNING, "Asked to write non-GSM frame (%d)!\n", f->subclass);
return -1;
}
if (!(f->datalen % 65))
alreadyms = 1;
while(len < f->datalen) {
if (alreadyms) {
fs->secondhalf = 0;
if ((res = write(fs->fd, f->data + len, 65)) != 65) {
ast_log(LOG_WARNING, "Bad write (%d/65): %s\n", res, strerror(errno));
return -1;
}
fs->bytes += 65;
update_header(fs->fd);
len += 65;
} else {
if (fs->secondhalf) {
memcpy(fs->gsm + 33, f->data + len, 33);
conv66(fs->gsm, msdata);
if ((res = write(fs->fd, msdata, 65)) != 65) {
ast_log(LOG_WARNING, "Bad write (%d/65): %s\n", res, strerror(errno));
return -1;
}
fs->bytes += 65;
update_header(fs->fd);
} else {
/* Copy the data and do nothing */
memcpy(fs->gsm, f->data + len, 33);
}
fs->secondhalf = !fs->secondhalf;
len += 33;
}
}
return 0;
}