RTP | simple Remote Timestamp Protocol client | Networking library
kandi X-RAY | RTP Summary
kandi X-RAY | RTP Summary
RTP stands for Remote Timestamp Protocol. The implementation of RTP consists of a client application and a server application; the client can ask for the (last modified) timestamp of a file on the remote machine while the server satisfies that request. RTP uses User Datagram Protocol (UDP) as its transport layer protocol.
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of RTP
RTP Key Features
RTP Examples and Code Snippets
Community Discussions
Trending Discussions on RTP
QUESTION
My sample code looks like the following :
...ANSWER
Answered 2022-Mar-09 at 20:23QUESTION
I'm using ffmpeg to generate an RTP stream for testing purposes, but I need to change the RTP payload type to 107. Currently, it's 96.
This is the command I use to generate the stream:
...ANSWER
Answered 2022-Jan-17 at 10:46Use -payload_type 107
before the output url, like: ... -payload_type 107 "rtp://..."
QUESTION
The media team is running some ad campaigns that I need to report on. The reports need to be based on either cities or city groups. A small example of the campaign names are:
...ANSWER
Answered 2022-Jan-08 at 20:48try:
QUESTION
First, I want to mention that I am very new to WebRTC, so any advice would be very helpful.
Currently I am using aiortc
library to build my own WebRTC app.
Here is what I am trying to do.
I have 2 peers, one is web browser, which is written in javascript, and another one is python script, which is working as signaling server and peer at the same time. So If you access to my web page, you will send video frame to server and then the server will make modification of that then send it back.
So I finished testing my app on LAN environment and everything worked as I expected. But once I deployed my app to remote server (Google cloud run) , I encountered Ice connection state failing issue. And gets this log on remote server.
(I think it is due to disconnection between peers, not low memory problem. I tried with 16GB RAM and 4 cpus and still didn't work)
Then, I dig into more information, and found that TURN/STUN server is necessary to build WebRTC app over Internet. So I added google STUN server to my RTCPeerConnection
like this. [{'urls': 'stun:stun.l.google.com:19302'}, {'urls': 'stun:stun1.l.google.com:19302'}, {'urls': 'stun:stun2.l.google.com:19302'}]
(I added both side on javascript and python because both side is working as peer) Unfortunately, it still didn't work.
Now, I am planning to build my own TURN server, but I am afraid if TURN server wouldn't solve this problem. So I would like to have any advice from you since I am quite stuck within my situation.
p.s I have done SSL encryption.(So GetUserMedia
is working fine)
Sdp details(Offer/Answer):
SDP
Offer
...ANSWER
Answered 2021-Dec-10 at 15:13If everything work on local, and this ice server are set, verify that your gcloud server have the correct firewall for webrtc port (not only your signaling port, check the sdp/ice you exchange). also this Webrtc page allow you to check is a stun/turn work on your client
You will not need stun on your python side, as it's a server his ip may be public (unless you don't want to). Stun allow to find your public ip and allow the port to remain open.
On your server you need to open your signaling port (certainly the WS where you exchange the sdp) and the P2P port (candidate lines in the sdp), the media/data will go through this one. For each media (sdp m line) there are usually one used port.
QUESTION
I am trying to record RTP stream with video and audio to HLS. Using GStreamer and nodejs. I get WARNING: erroneous pipeline: no element "fdkaacenc"
. I am using macOS with M1 CPU and all plugins base, good, bad, and ugly are installed.
The whole command I am trying to execute is this
...ANSWER
Answered 2021-Nov-23 at 16:44I fixed that by avenc_aac
instead of fdkaacenc
. Not to mention that you should use audioconvert
before avenc_aac.
The part of command I was trying to convert to aac:
rtpopusdepay ! opusdec ! audioconvert ! avenc_aac
.
More: avenc_aac
is part of gstreamer ffmpeg plugins which exists in linux, mac and windows. fdkaacenc
is part of gstreamer bad plugins that may not be the same in all systems. That's is why using avenc_aac
is more approperiate. So it can be executed in both mac and linux.
QUESTION
Hi there, I am attempting to build a WebRTC client in Android that subscribes to a video feed that is being broadcast using NodeJS and JavaScript.
The broadcaster code can be viewed in its entirety in this lovely article by Gabriel Tanner.
It works beautifully when running it in localhost under the http://localhost:4000/broadcaster.html
in Chrome and then visiting my IP Address from another device on the network. I can see the video and it is near real time.
I have tried this using two different webcam devices, both a built-in and a USB webcam but the Android client does not work even though the JavaScript Broadcaster and Client works fine.
The task at handAfter following the tutorial and getting the example to work I decided to try and implement my own Android application for which the entire source code can be viewed right here on my GitHub.
I have followed various tutorials around the place and the issue always stems from attempting to set the remote description which is done with the following bit of code:
...ANSWER
Answered 2021-Nov-16 at 04:29The error message was triggered due to the offer containing H264 codecs whilst the Android Client was not anticipating H264 and was not setup to encode and/or decode this particular hardware encoded stream.
The fix was to ensure that the connection factory was setup as such:
QUESTION
Here is my code. Basically I am trying to stream android screen to vlc media player using rtsp somehow I have managed to stream video perfectly but audio is not playing. I am using AMRNB encoding method to send stream on Local Socket. I can see that there is audio track by using log also it is being send but don't know why it is not getting played.
...ANSWER
Answered 2021-Oct-09 at 13:02While debugging I foundout that I am using media recorder for audio and medicodecs for video that is why my media recorder was null and it couldn't start mediarecorder.
but still audio is not working
QUESTION
I am receiving h264 frames over a serial link, trying to play them with gstreamer. I set the caps to gst_caps_from_string("video/x-h264")
, and it seems to accept them (if I use other caps, e.g. application/x-rtp
, then the gstreamer log output complains about incompatible caps).
More specifically, I use the following elements: appsrc ! h264parse ! rtph264pay
, and it seems like h264parse
is the one not being happy.
When I pass (through appsrc
) a frame that I get as a byte[]
of length 8018, I get the following log output:
ANSWER
Answered 2021-Nov-06 at 15:02From the source code, this message comes from:
QUESTION
I am trying to start a capture of the webcam, transcode it and output it to RTSP
but I cannot view the stream when I view: rtsp://127.0.0.1:53211
I get a log in my VLC player saying:
...ANSWER
Answered 2021-Oct-10 at 02:19There were two errors:
- This option is malformed and causes a silent error
QUESTION
I have the following function being called in a ViewController that passes in data to build a list of transactions. Each time the page refreshes, this is called and new data is shown. All is good, except for one remaining frustrating bug: when the new data is loaded the previous balancedOwedAmountLabel.text
still shows the previous amount.
So on each refresh, the text is written on top of the previous text each time. This results in a jumbled mess of text each time the page is refreshed. It would be expected to have the previous text removed, and replaced with the new text that I determine.
I've tried manually setting the balancedOwedAmountLabel.text = nil
to simply remove it and then reset it each time the data is retrieved and painted, but it won't work. I've also tried removing the subview entirely via balancedOwedAmountLabel.removeFromSuperview()
and that doesn't seem to do the trick either.
Since I'm not using a Storyboard I can't connect IBOutlets
so I'm having to resort to figuring out how to get around this problem programmatically. How do I go about solving this with the following code?
ANSWER
Answered 2021-Sep-29 at 22:09It looks like each time this function is called, you create a new stackview
and add it in self.view
. But I cannot see when you remove previous stackview
?
One way of fixing it would be: store reference on current stackview
and remove it before adding new one as:
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