diff options
| -rw-r--r-- | pjmedia/src/pjmedia-videodev/ios_dev.m | 33 |
1 files changed, 27 insertions, 6 deletions
diff --git a/pjmedia/src/pjmedia-videodev/ios_dev.m b/pjmedia/src/pjmedia-videodev/ios_dev.m index 8fe54437..50283bf9 100644 --- a/pjmedia/src/pjmedia-videodev/ios_dev.m +++ b/pjmedia/src/pjmedia-videodev/ios_dev.m @@ -723,13 +723,34 @@ static pj_status_t ios_stream_set_cap(pjmedia_vid_dev_stream *s, { pj_bool_t native_preview = *((pj_bool_t *)pval); - if (!strm->cap_session) return PJ_EINVAL; - - if (!native_preview || strm->render_view) + /* Disable native preview */ + if (!native_preview) { + if (strm->prev_layer) { + CALayer *prev_layer = strm->prev_layer; + dispatch_async(dispatch_get_main_queue(), ^{ + [prev_layer removeFromSuperlayer]; + [prev_layer release]; + }); + strm->prev_layer = nil; + PJ_LOG(4, (THIS_FILE, "Native preview deinitialized")); + } return PJ_SUCCESS; + } - /* Create view */ - ios_init_view(strm); + /* Enable native preview */ + + /* Verify if it is already enabled */ + if (strm->prev_layer) + return PJ_SUCCESS; + + /* Verify capture session instance availability */ + if (!strm->cap_session) + return PJ_EINVALIDOP; + + /* Create view, if none */ + if (!strm->render_view) + ios_init_view(strm); + /* Preview layer instantiation should be in main thread! */ dispatch_async(dispatch_get_main_queue(), ^{ @@ -743,8 +764,8 @@ static pj_status_t ios_stream_set_cap(pjmedia_vid_dev_stream *s, prev_layer.frame = strm->render_view.bounds; [strm->render_view.layer addSublayer:prev_layer]; strm->prev_layer = prev_layer; - PJ_LOG(4, (THIS_FILE, "Native preview initialized")); }); + PJ_LOG(4, (THIS_FILE, "Native preview initialized")); return PJ_SUCCESS; } |