Capturing video and audio from HDMI/USB device

RVMedia support and discussion (components for displaying and controlling IP cameras, webcams, video conferencing, video chats, recording audio and video files)
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cjb
Posts: 12
Joined: Wed Jun 08, 2016 8:47 am

Capturing video and audio from HDMI/USB device

Post by cjb »

Hi,

I have a Magewell HDMI capture device that runs on USB3 and I would like to simply play the captured video and audio in a simple app.

I can see from the demos how the video stream can easily be played, but what about the audio stream? Do I need a TRVMicrophone to connect to the audio stream, and if so, how can that audio be played locally on the PC like the video is?

Thanks
Sergey Tkachenko
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Post by Sergey Tkachenko »

I believe this device is available in the list of audio capture devices. In this case, TRVMicrophone can read sound from it.
However, we do not have a component to play sound from it locally (somehow we did not think about it).
We will try to find a solution. However, I am not sure that the quality will be good, our components are not designed to work with such kind of devices.
cjb
Posts: 12
Joined: Wed Jun 08, 2016 8:47 am

Post by cjb »

Yes, it presents to Windows exactly like a standard webcam with a video and audio capture device. So I believe it's the same issue as playing audio from a webcam microphone which is another case that would be great to have a solution for too.

I hope you are able to get something working for local audio playback from TRVMicrophone. Thanks
Sergey Tkachenko
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Post by Sergey Tkachenko »

We discussed this problem and decided that the best solution would be adding a new component that could be connected to TRVMicrophone and play sound from it on the specified audio output device. It will be called TRVAudioPlayer
I hope we will release this update soon, in a week or two.
cjb
Posts: 12
Joined: Wed Jun 08, 2016 8:47 am

Post by cjb »

This sounds excellent... I am very excited about using RVMedia for our application!

Thanks
ijbranch
Posts: 2
Joined: Mon Jul 25, 2016 5:22 am

Monitoring Audio as well as Video

Post by ijbranch »

I can use this functionality also.
I am trying to monitor the audio from an IP Security Cam. Haven't figured out how to get the audio from the IP camera yet but will need to 'play' it once I have.
Sergey Tkachenko
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Post by Sergey Tkachenko »

Receiving audio from IP cameras is a separate task. I believe that this camera is not available as an "audio input" device on the computer.
Unfortunately, RVMedia does not allow receiving sound from IP cameras yet.
ijbranch
Posts: 2
Joined: Mon Jul 25, 2016 5:22 am

Post by ijbranch »

HI Sergey,
Noted. Look forward to the 'yet' becoming 'now'...;-)
Ian
cjb
Posts: 12
Joined: Wed Jun 08, 2016 8:47 am

Post by cjb »

Hi Sergey,

Just wondering if there is any progress with your proposed 'TRVAudioPlayer'?

I'm keen to test when it's available...

Thanks.
Sergey Tkachenko
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Post by Sergey Tkachenko »

As soon as possible. We are planning to add two new features in the next update - audio player and video recording using FFmpeg
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