Facebook Live Video API, can I share a friend video stream programmatically? - ios

Question

I want to share a Facebook video live stream on my own wall programmatically. I want to do it inside my app after a Facebook login made with the facebook sdk, something like a normal link sharing:
NSMutableDictionary* params = [[NSMutableDictionary alloc] init];
[params setObject:link forKey:#"picture"];
[params setObject:LinkStringa forKey:#"link"];
[params setObject:ShareTextView.text forKey:#"message"];
[params setObject:[[FBSDKAccessToken currentAccessToken] tokenString] forKey:#"access_token"];
FBSDKGraphRequest *request = [[FBSDKGraphRequest alloc]
initWithGraphPath:#"/me/feed"
parameters:params
HTTPMethod:#"POST"];
[request startWithCompletionHandler:^(FBSDKGraphRequestConnection *connection,
id result,
NSError *error) {
// Handle the result
if (!error) {
}
else{
NSLog(#"error %#",error.description);
}
}];
I can't find mentions about sharing live video on Facebook documentation, only how create and publish live video. How can I share a live stream video?

Answer 1

You can use this method for that:
- (void)enableFacebookLiveStreamingWithCompletionHandler:(void(^)(NSString* facebookStreamURL, NSString* facebookStreamKey, NSError* error))completionHandler;
{
dispatch_async(dispatch_get_main_queue(), ^{
if ([[FBSDKAccessToken currentAccessToken] hasGranted:permissionPublishActions])
{
NSString* liveVideosRequestPath = [NSString stringWithFormat:#"/%#/live_videos",[FBSDKAccessToken currentAccessToken].userID];
FBSDKGraphRequest* request = [[FBSDKGraphRequest alloc] initWithGraphPath:liveVideosRequestPath parameters:nil HTTPMethod:#"POST"];
[request startWithCompletionHandler:^(FBSDKGraphRequestConnection *connection, id result, NSError *error) {
NSLog(#"%#",[FBSDKAccessToken currentAccessToken].permissions);
if (error)
{
if (completionHandler)
completionHandler(#"",#"",error);
}
else
{
if (completionHandler)
completionHandler(#"rtmp://rtmp-api.facebook.com:80/rtmp/",[[result objectForKey:#"stream_url"] lastPathComponent],nil);
}
}];
}
});
}
For streaming via RTMP use this open source library: https://github.com/jgh-/VideoCore
There is a code for example:
self.vcSession = [[VCSimpleSession alloc] initWithVideoSize:CGSizeMake(854, 480) frameRate:30 bitrate:1000000 useInterfaceOrientation:NO];
[self.view addSubview:self.vcSession.previewView];
self.vcSession.previewView.frame = CGRectMake(40, 40, 320, 240);//self.view.bounds;
self.vcSession.delegate = self;
[self.vcSession startRtmpSessionWithURL:#"your rtmp:URL "andStreamKey:#"your stream key"];

Answer 2

Swift 3
you can check this repo
https://github.com/hansemannn/facebook-live-ios
How to use
var liveVideo: FBSDKLiveVideo!
override func viewDidLoad() {
super.viewDidLoad()
// Create the live video service
liveVideo = FBSDKLiveVideo(
delegate: self,
previewSize: self.view.bounds,
videoSize: CGSize(width: 1280, height: 720)
)
// Optional: Configure the live-video (see the source for all options)
liveVideo.privacy = .me // or .friends, .friendsOfFriends, .custom
liveVideo.audience = "me" // or your user-id, page-id, event-id, group-id, ...
// Optional: Add the preview view of the stream to your container view.
myView.addSubView(liveVideo.preview)
}

Answer 3

Found this link https://developers.facebook.com/docs/videos/live-video-api which states:
" Stream a Live Video
Once a live_video object is created, a stream_url and key will be returned in the response. The server URL will be http://rtmp-api.facebook.com/rtmp/ and the stream key will be everything after it. Use both in order to push video frames through your streaming software."
Let me know how it turns out though as I'm also starting an app with this functionality.