What can I do to interface with RTS network video streams or local file video streams? If possible, could you provide examples or development documentation?
For instance, how to concatenate video streams using OpenCV or process output video streams using YOLO?
Thank you, best wishes to you and have a great day! :)
I have read the reference documentation and can't find a suitable implementation for my method, if you can give me a reference. Thanks
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I been reading a lot about H265 encoder but I'm no really sure how to start a C or Python application to encode a video stream in real time using H.265 encoder from libde265, I all ready install the library and I guess I could use opencv to get the input video stream from a usb camera, do anyone has worked in this type of application ?
If you are not particular about using libde265, which I am not aware of, please give a shot with gstreamer. gstreamer has lots of plugins and examples if you are doing some standard tasks like encoding on your stream. It also integrates well with native development.
I have worked on a project similar to yours, where we did H264 encoding and decoding along with few other things on a live camera feed.
Please find the video of a similar application here: https://www.youtube.com/watch?v=JcpkGDpfVU0
Just my two cents!!
Hej
I would like to build an audio effect into a RPi. This effect should be programmed in C. I am not familiar with the software audio interfaces in Linux. The ALSA interface looks very complicated. Port Audio seems to be an alternative.
Any ideas(maybe with a tutorial)?
With some work you can also get OpenAL to stream and render audio using c language - then you could perform your processing in that context ...
Node.js is available on RPi which offers audio modules
PortAudio seems the best approach. A good tutorial can be found here:
http://portaudio.com/docs/v19-doxydocs/tutorial_start.html
Sometimes the Interface configuration needs to be done manually.
Dose any one try to captured the audio stream using OpenNI2 library from Xtion pro??
I searched the Internet and found the audio API in OpenNI2 source code. Audio API
It seems that it only can "Play" the audio but capture audio stream.
And it doesn't demonstrate how to use those API.
Is there any example code which recorded the audio stream using OpenNI2 from Xtion pro?
BTW, my OpenNI version is 2.2.0.33.
Thanks anyone's help : )
After I surveyed so much information, I found that OpenNI2 didn't support the audio stream anymore. Hence, someone suggest me to use another library to capture audio stream from Xtion Pro.
Now, I'm using the PortAudio to deal with the audio stream. It's quit powerful tool and easy to use.
Moreover, it's cross-platform library which support Windows, Mac OS, and Unix using C/C++, and the Documentation is clear and the example code is understandable.
So, if some newbies like me want to use Xtion Pro to capture audio stream, I will recommend this library.
Any other suggestions are very welcome : )
.Hi everyone! I am looking forward to create a website with a live video streaming feature.
I have done some research and read about some applications including Flash Media Live Encoder.
Can anyone please guide me on how to start with this? Thanks!
It really depends from your requirements.
Do you need live streaming for big event or small event (what is your bandwidth)?
Do you need to stream to different devices (desktop+mobile)?
Do you have to stream your desktop/webcam or high quality camera feeds through capture cards?
Are you flexible with different Operative Systems?
Your question is too general. FMLE + FMS is a good solution, but FMS can be expensive.
Try to have a look also to Wowza.
If you just need a few live videos on your website, the solution is quite simple, Flash Media Live Encoder plus Flash Media Server are suitable.
I want to make (for fun, challenge) a videoconference application, I have some ideas about this:
1) taking the audio/video streams (I don't know what an audio/video stream is)
2) pass this to a server that lets communicate the clients. I can figure out how to write a server(there are a lot of books and documentation about this) but I really don't know how to interact with the webcam and with the audio/video in general.
I want some links, book, suggestions about the basics of digital audio/video expecially on programming. Please help me!!!
I want to make it run on a Linux platform.
Linux makes video grabbing really nice. As long as you have a driver that outputs the video stream to the /dev/video/v* channels. All you have to do is open up a control connection to the device [an exercise for the OP] and then read in the channel like a file [given the parameters set by the control connection. Audio should be the same way, but don't quote me on it.
BTW: Video streaming from a server is a very complex issue. You have to develop or use an existing protocol. You have to be very aware of networking delays, and adjust the information sent (resize or recompress) to the client based on the link size between the client and the server.