Capturing video and audio from HDMI/USB device

New product: VCL components for displaying and controlling IP cameras, webcams, video conferencing, video chats
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cjb
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Joined: Wed Jun 08, 2016 8:47 am

Capturing video and audio from HDMI/USB device

Post by cjb » Thu Jul 14, 2016 2:38 pm

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 » Thu Jul 14, 2016 5:09 pm

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
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Joined: Wed Jun 08, 2016 8:47 am

Post by cjb » Fri Jul 15, 2016 6:55 am

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 » Sun Jul 17, 2016 7:00 pm

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
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Post by cjb » Mon Jul 18, 2016 9:04 am

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

Thanks

ijbranch
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Joined: Mon Jul 25, 2016 5:22 am

Monitoring Audio as well as Video

Post by ijbranch » Mon Jul 25, 2016 5:26 am

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 » Mon Jul 25, 2016 6:17 am

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
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Post by ijbranch » Mon Jul 25, 2016 7:29 am

HI Sergey,
Noted. Look forward to the 'yet' becoming 'now'...;-)
Ian

cjb
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Post by cjb » Wed Aug 03, 2016 10:35 am

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 » Wed Aug 03, 2016 12:24 pm

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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