I am developing an iOS application, where i need to share my iOS application screen converted as network packets into another server destination. I can use socket programming for sending and receiving network packets. But, i want to know, how can it be possible to convert my iOS app native screen (view) to packets? For ex: In windows desktop, its achieved by RDP and video driver converts desktop screen to packets.
Please advise if anyone come across working on such thing.
Thank you.
Getsy.
iOS has native support to mirror the screen to a remote display. It is called AirPlay Mirroring.
It would be very hard to provide a similar experience trying to bypass iOS.
You would have to run in the background. You would have to do some sort of video compression combined with streaming. Apple doesn't give you enough control over their H.264 hardware compressor.
There are multiple products out there to receive the your iOS screen. For example:
http://www.airsquirrels.com/reflector/ or
http://www.airserver.com/
If you want more control on the receiving side you could write your own AirPlay receiver.
I'd start here: http://nto.github.io/AirPlay.html#screenmirroring
Related
I'm trying to receive a live RTP audio stream in my iPhone but I don't know how to start. I'm seeking some samples but I can't find them anywhere.
I have a Windows desktop app which captures audio from the selected audio interface and streams it as ยต-law or a-law. This app works as an audio server that serves any incoming connection with that streaming. I have to say that I've developed an Android app that receives that stream and it works, so I want to replicate this functionality on iOS. In Android we have "android.net.rtp" package to manage this and transmit or receive data streams over the network.
Is there any kind of equivalent package for iOS to implement this? Could you give me any kind of reference / sample to do this, or just tell me where to start?
You can see this libraryHTTPLiveStreaming, But his protocol maybe is not standard one, You can check my fork aelam/HTTPLiveStreaming-1, I'm still working on it, it can be played by ffplay. You can try
check the file rtp.c in ffmpeg, I think it will help out
So with iOS 8, we can now record the screen of iOS devices. I've searched extensively and cannot find a way to detect, let alone prevent, this recording. The app I'm working on deals with some potentially sensitive information and images and would like to prevent this if at all possible.
Thank you in advance for your responses and insights!
Anthony
Apparently, there is some way to detect whether a display or QuickTime streaming is connected, because the Netflix app will show an error when that is the case (which also means you can't just use an iOS device and stream to your computer to watch it in big). The app works perfectly if QuickTime streaming is off with the cable is plugged in.
Maybe it just detects whether an external display is connected, and screen recording behaves like that, so basically you might have some success with these APIs and notifications.
Also, you could use an encrypted HTTP Live Stream according to Apple which would be blacked out in the stream / the recording.
I need to do video streaming to iPhone.
However, I don't have a homebrewed application playing the H.264 stream yet.
I have to understand first, how much delay there's for iPhone to receive the first packet/frame.
Anyone knows how to get some "sniffer" like WireShark on iPhone? Is it possible at all?
You can configure Fiddler as a reverse proxy and monitor the traffic from mobile devices. I don't know if this will do exactly what you want (I haven't done it in a long time) but the company I work at has analytics products for the various mobile platforms and that was the method we used to monitor their network usage.
http://www.fiddler2.com/Fiddler/help/reverseproxy.asp
I'm working in app where I need to implement a simple voice functionality between two iOS devices in same network.
My doubt is about how to get audio units from master device and send over wifi or bluetooth network directly to slave device in realtime.
Some things about network communication I have done, I can transfer any NSData between devices using TCP.
Is very important to not use GK framework, because I need to connect two clients without any notification. For example, when I use GK to connect two devices, the iOS display a alert with a connection request, I need to avoid this connection request.
Currently I can do this with video, is more simple than audio.
Any ideias about the implementation of this are welcome.
Thanks.
First of all, you need learn how to capture the audio using Audio Queue Services.
Then transmit the audio data it over wifi and bluetooth and play it at the other side.
The most obvious choice for you is to use bonjour.
GameKit framework is built on top of this. You dont have to build too much on top of this for your application though. Yours is a straightforward application of bonjour.
Please refer the code for chatty if needed. Incase you need some background theory, please refer to http://mobileorchard.com/tutorial-networking-and-bonjour-on-iphone/.
I have used Audio Queue Services for the same sort of project.
For Networking I am using Bonjour and it has really solved the problem of transmitting text and video.
Did a lot of workarounds to make a voice chat in wifi using Audio Queue Services but have not succeeded. I will update once I find the solution other than this.
I'd like to stream video from the camera on an iOS device to a receiver via wifi, in effect turning the device into a wireless webcam. Is there a way to build a small app that captures video input on an iOS app and sends it via an RTSP stream or similar?
As this is an ad hoc experiment, I'm not concerned about App Store guidelines and can jailbreak if necessary.
If I interpret your question correctly you more or less need to solve four problems:
Get the camera feed.
Convert/encode this to the right format.
Stream the data.
Prevent the phone from locking itself and going into deep sleep.
The first one is fairly simple and Apple has as always provided good documentation and examples -> API link. Make sure you check out their example in the end as you will get a CMSampleBufferRef data object back.
For the second and third part, you should check out the CFNetwork framework and specially CFFTPStream for streaming using FTP.
If your are only building this for yourself then you can always turn off the Auto-Lock feature in the settings. If you on the other hand would like to distribute this to other users you could use a trick to play a mute sound every 10 seconds. This is more or less how all the alarm clocks work in the App Store. Here's a tutorial. =)
I hope I helped a little bit at least.
Good luck and best regards!
I'm 70% of the way to doing the same thing. Here's how I did it:
Capture content from video input
Chop video into files for use in HTML Live Streaming.
Spin up a web server on the iPhone and make the video files available.
Connect to the IP address of the phone and viola! you've got live streaming video.
Last time I touched the code I was trying to debug my Live Streaming not working. I'll try and get my source code posted on github this weekend, if you'd like to take a look.