/* API: init driver */
PJ_DEF(pj_status_t) pjmedia_vid_driver_init(unsigned drv_idx,
pj_bool_t refresh)
{
pjmedia_vid_driver *drv = &vid_subsys.drv[drv_idx];
pjmedia_vid_dev_factory *f;
unsigned i, dev_cnt;
pj_status_t status;
if (!refresh) {
/* Create the factory */
f = (*drv->create)(vid_subsys.pf);
if (!f)
return PJ_EUNKNOWN;
/* Call factory->init() */
status = f->op->init(f);
if (status != PJ_SUCCESS) {
f->op->destroy(f);
return status;
}
} else {
f = drv->f;
}
/* Get number of devices */
dev_cnt = f->op->get_dev_count(f);
if (dev_cnt + vid_subsys.dev_cnt > MAX_DEVS) {
PJ_LOG(4,(THIS_FILE, "%d device(s) cannot be registered because"
" there are too many devices",
vid_subsys.dev_cnt + dev_cnt - MAX_DEVS));
dev_cnt = MAX_DEVS - vid_subsys.dev_cnt;
}
/* enabling this will cause pjsua-lib initialization to fail when there
* is no video device installed in the system, even when pjsua has been
* run with --null-video
*
if (dev_cnt == 0) {
f->op->destroy(f);
return PJMEDIA_EVID_NODEV;
}
*/
/* Fill in default devices */
drv->rend_dev_idx = drv->cap_dev_idx = -1;
for (i=0; i<dev_cnt; ++i) {
pjmedia_vid_dev_info info;
status = f->op->get_dev_info(f, i, &info);
if (status != PJ_SUCCESS) {
f->op->destroy(f);
return status;
}
if (drv->name[0]=='\0') {
/* Set driver name */
pj_ansi_strncpy(drv->name, info.driver, sizeof(drv->name));
drv->name[sizeof(drv->name)-1] = '\0';
}
if (drv->rend_dev_idx < 0 && (info.dir & PJMEDIA_DIR_RENDER)) {
/* Set default render device */
drv->rend_dev_idx = i;
}
if (drv->cap_dev_idx < 0 && (info.dir & PJMEDIA_DIR_CAPTURE)) {
/* Set default capture device */
drv->cap_dev_idx = i;
}
if (drv->rend_dev_idx >= 0 && drv->cap_dev_idx >= 0) {
/* Done. */
break;
}
}
/* Register the factory */
drv->f = f;
drv->f->sys.drv_idx = drv_idx;
drv->start_idx = vid_subsys.dev_cnt;
drv->dev_cnt = dev_cnt;
/* Register devices to global list */
for (i=0; i<dev_cnt; ++i) {
vid_subsys.dev_list[vid_subsys.dev_cnt++] = MAKE_DEV_ID(drv_idx, i);
}
return PJ_SUCCESS;
}
/* Internal: init driver */
static pj_status_t init_driver(unsigned drv_idx, pj_bool_t refresh)
{
struct driver *drv = &aud_subsys.drv[drv_idx];
pjmedia_aud_dev_factory *f;
unsigned i, dev_cnt;
pj_status_t status;
if (!refresh && drv->create) {
/* Create the factory */
f = (*drv->create)(aud_subsys.pf);
if (!f)
return PJ_EUNKNOWN;
/* Call factory->init() */
status = f->op->init(f);
if (status != PJ_SUCCESS) {
f->op->destroy(f);
return status;
}
} else {
f = drv->f;
}
/* Register device change observer */
if (!refresh) {
f->op->set_dev_change_cb(f, &process_aud_dev_change_event);
}
if (!f)
return PJ_EUNKNOWN;
/* Get number of devices */
dev_cnt = f->op->get_dev_count(f);
if (dev_cnt + aud_subsys.dev_cnt > MAX_DEVS) {
PJ_LOG(4,(THIS_FILE, "%d device(s) cannot be registered because"
" there are too many devices",
aud_subsys.dev_cnt + dev_cnt - MAX_DEVS));
dev_cnt = MAX_DEVS - aud_subsys.dev_cnt;
}
/* enabling this will cause pjsua-lib initialization to fail when there
* is no sound device installed in the system, even when pjsua has been
* run with --null-audio
*
if (dev_cnt == 0) {
f->op->destroy(f);
return PJMEDIA_EAUD_NODEV;
}
*/
/* Fill in default devices */
drv->rec_dev_idx = f->op->get_default_rec_dev(f);
drv->play_dev_idx = f->op->get_default_play_dev(f);
for (i=0; i<dev_cnt; ++i) {
pjmedia_aud_dev_info info;
status = f->op->get_dev_info(f, i, &info);
if (status != PJ_SUCCESS) {
f->op->destroy(f);
return status;
}
if (drv->name[0]=='\0') {
/* Set driver name */
pj_ansi_strncpy(drv->name, info.driver, sizeof(drv->name));
drv->name[sizeof(drv->name)-1] = '\0';
}
if (drv->play_dev_idx < 0 && info.output_count) {
/* Set default playback device */
drv->play_dev_idx = i;
}
if (drv->rec_dev_idx < 0 && info.input_count) {
/* Set default capture device */
drv->rec_dev_idx = i;
}
if (drv->play_dev_idx >= 0 && drv->rec_dev_idx >= 0)
{
/* Done. */
break;
}
}
/* Register the factory */
drv->f = f;
drv->f->sys.drv_idx = drv_idx;
drv->start_idx = aud_subsys.dev_cnt;
drv->dev_cnt = dev_cnt;
/* Register devices to global list */
for (i=0; i<dev_cnt; ++i) {
aud_subsys.dev_list[aud_subsys.dev_cnt++] = MAKE_DEV_ID(drv_idx, i);
}
return PJ_SUCCESS;
}
