static void *playtones_alloc(struct ast_channel *chan, void *params)
{
struct playtones_def *pd = params;
struct playtones_state *ps = NULL;
if (!(ps = ast_calloc(1, sizeof(*ps)))) {
return NULL;
}
ast_format_copy(&ps->origwfmt, ast_channel_writeformat(chan));
if (ast_set_write_format_by_id(chan, AST_FORMAT_SLINEAR)) {
ast_log(LOG_WARNING, "Unable to set '%s' to signed linear format (write)\n", ast_channel_name(chan));
playtones_release(NULL, ps);
ps = NULL;
} else {
ps->vol = pd->vol;
ps->reppos = pd->reppos;
ps->nitems = pd->nitems;
ps->items = pd->items;
ps->oldnpos = -1;
}
/* Let interrupts interrupt :) */
if (pd->interruptible) {
ast_set_flag(ast_channel_flags(chan), AST_FLAG_WRITE_INT);
} else {
ast_clear_flag(ast_channel_flags(chan), AST_FLAG_WRITE_INT);
}
return ps;
}
static void *playtones_alloc(struct cw_channel *chan, void *params)
{
struct playtones_def *pd = params;
struct playtones_state *ps;
if ((ps = malloc(sizeof(*ps))) == NULL)
return NULL;
memset(ps, 0, sizeof(*ps));
ps->origwfmt = chan->writeformat;
if (cw_set_write_format(chan, CW_FORMAT_SLINEAR))
{
cw_log(LOG_WARNING, "Unable to set '%s' to signed linear format (write)\n", chan->name);
playtones_release(NULL, ps);
ps = NULL;
}
else
{
struct playtones_item *pi;
ps->vol = pd->vol;
ps->reppos = pd->reppos;
ps->nitems = pd->nitems;
ps->items = pd->items;
/* Initialize the tone generator */
pi = &pd->items[0];
tone_setup(ps, pi);
}
/* Let interrupts interrupt :) */
if (pd->interruptible)
cw_set_flag(chan, CW_FLAG_WRITE_INT);
else
cw_clear_flag(chan, CW_FLAG_WRITE_INT);
return ps;
}