I’m a long-time vvvv beta user and I’m now approaching vvvv gamma.
I would like to know if there is any way to play a video with Dolby Atmos 5.1/7.1 encoded audio.
The idea is to run a PC with vvvv gamma, output both video and audio via HDMI, and let an external Dolby Atmos preamplifier decode the audio stream to a 5.1 or 7.1 speaker setup.
As far as I understood, the built-in video player in vvvv gamma converts the audio track to stereo PCM, while what I need is HDMI bitstream passthrough (AC3, E-AC3, TrueHD, etc.).
It seems that VLC / libVLC can do that.
Since I’m completely new to gamma, I would like to understand if this limitation is real, and if anyone has suggestions or experience on how to handle Dolby encoded audio in gamma.
I hope to find a good solution so I can finally move my workflow to gamma.
any chance you could provide such a video file? and are you saying the same worked in vvvv beta? if so, please provide a patch that shows how you did it there.
here you can find 2 demo video files with Dolby audio.
I never tried a surround audio system, even with vvvv beta. In order to pass the stream to the Dolby Atmos preamplifier though the HDMI I need HDMI passthrough. This is an option that VLC player has.
As far as I understood, the built-in video player in vvvv gamma (Media Foundation) converts the audio track to stereo PCM, while what I need is HDMI bitstream passthrough (AC3, E-AC3, TrueHD, etc.). Let me know if I’m right or not!
I would like to understand how can I play these video with HDMI passthrough in vvvv gamma.
so from the limited research we can do here (since we don’t have the needed external amplifier to test) it seems that you may be lucky and it is just about getting windows settings right. please refer to this reddit post and see if it helps.
videoplayer always plays to the default windows audio device. so if you configure that one accordingly and it works with windows mediaplayer, it should also work with vvvv.
I read the reddit post but after the configuration of windows the article talk about video player configuration in order to turn on the “passthrough HDMI” and the vvvv videoplayer doesn’t have any option about that.
Do you think is it a feature that could be implemented in the existing videoplayer node?
Otherwise VLC has this feature. Do you think is it possible to develop a VLC videoplayer node for gamma with Audio Passthough input pin to enable the feature?
since the vvvv videoplayer chooses the default playback device, the hope was that if you configure this device accordingly, it might just magically work. if it doesn’t.. you’re saying it works for you on the same PC when using vlc?
we can certainly look into implementing this via vlc. please get in touch via devvvvs@vvvv.org if you want this prioritized.
