Discussion:
Video + multichannel audio playback
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David Stalling
2017-09-03 22:04:10 UTC
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Hi,

Can somebody recommend a straightforward media player that supports
playback of a video file with discrete multichannel audio output
(preferably Linux, alt. Mac OSX)

I have created an ambisonic soundtrack, decoded with Ambisonic Toolkit to
twelve mono channels corresponding to my speaker layout, and wrapped them
together with the video into a .mov file.

Video playback is via HDMI output, audio via external USB card.

I already looked at solutions like KODI, but it seems they're tailored more
towards commercial surround formats with the max. number of audio output
channels being 7.1 or 8.0

Somebody recommended ffplay / ffmpeg, but I got lost trying to set it up in
a way so it will send the correct audio to the correct soundcard channels.

Any pointers would be greatly appreciated.

Regards,
David
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Marc Lavallée
2017-09-03 22:57:49 UTC
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https://mpv.io/
https://www.videolan.org/vlc/

--
Marc

On Sun, 3 Sep 2017 23:04:10 +0100
Post by David Stalling
Hi,
Can somebody recommend a straightforward media player that supports
playback of a video file with discrete multichannel audio output
(preferably Linux, alt. Mac OSX)
I have created an ambisonic soundtrack, decoded with Ambisonic
Toolkit to twelve mono channels corresponding to my speaker layout,
and wrapped them together with the video into a .mov file.
Video playback is via HDMI output, audio via external USB card.
I already looked at solutions like KODI, but it seems they're
tailored more towards commercial surround formats with the max.
number of audio output channels being 7.1 or 8.0
Somebody recommended ffplay / ffmpeg, but I got lost trying to set it
up in a way so it will send the correct audio to the correct
soundcard channels.
Any pointers would be greatly appreciated.
Regards,
David
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Jörn Nettingsmeier
2017-09-13 11:38:07 UTC
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Post by Marc Lavallée
https://mpv.io/
https://www.videolan.org/vlc/
Also, consider using JACK to connect a decoder after the player, so that
you can store your media in portable Ambisonics format rather than
rendered to a particular layout.

Greetings on the way home from https://vdt-icsa.de,


Jörn
--
Jörn Nettingsmeier
De Rijpgracht 8, 1055VR Amsterdam, Nederland
Tel. +49 177 7937487

Meister für Veranstaltungstechnik (Bühne/Studio), Tonmeister VDT
http://stackingdwarves.net
Marc Lavallée
2017-09-13 14:19:02 UTC
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About mpv; the audio routing syntax is slightly different than for mplayer, and is well documented:
https://github.com/mpv-player/mpv/blob/master/DOCS/man/af.rst <https://github.com/mpv-player/mpv/blob/master/DOCS/man/af.rst>

Off topic:
Looking at https://vdt-icsa.de <https://vdt-icsa.de/>, I see that IRCAM have a new tool (not that new, but still worth mentioning): panoramix.
It looks like the perfect spatial audio companion for live sound, and the Linux version is free (as in beer):
http://forumnet.ircam.fr/product/panoramix-en/


Marc
Post by Marc Lavallée
https://mpv.io/
https://www.videolan.org/vlc/
Also, consider using JACK to connect a decoder after the player, so that you can store your media in portable Ambisonics format rather than rendered to a particular layout.
Greetings on the way home from https://vdt-icsa.de,
Jörn
--
Jörn Nettingsmeier
De Rijpgracht 8, 1055VR Amsterdam, Nederland
Tel. +49 177 7937487
Meister für Veranstaltungstechnik (Bühne/Studio), Tonmeister VDT
http://stackingdwarves.net
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Sursound mailing list
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David Stalling
2017-09-14 08:34:17 UTC
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Thank you Marc and Jörn for your responses. Plenty of food for thought. I
needed a quick solution and what worked for me in the end with the
Raspberry Pi was VLC player (compiled with HW acceleration) connecting via
JACK to my USB soundcard. The next time I will try mpv.

Jörn, are there any particular decoders you can recommend that would work
via JACK?

Best,
David



------------------------------
Post by Jörn Nettingsmeier
Also, consider using JACK to connect a decoder after the player, so that
you can store your media in portable Ambisonics format rather than
rendered to a particular layout.
Greetings on the way home from https://vdt-icsa.de,
J?rn
--
J?rn Nettingsmeier
De Rijpgracht 8, 1055VR Amsterdam, Nederland
Tel. +49 177 7937487
Meister f?r Veranstaltungstechnik (B?hne/Studio), Tonmeister VDT
http://stackingdwarves.net
------------------------------
About mpv; the audio routing syntax is slightly different than for
https://github.com/mpv-player/mpv/blob/master/DOCS/man/af.rst <
https://github.com/mpv-player/mpv/blob/master/DOCS/man/af.rst>
Looking at https://vdt-icsa.de <https://vdt-icsa.de/>, I see that IRCAM
have a new tool (not that new, but still worth mentioning): panoramix.
It looks like the perfect spatial audio companion for live sound, and the
http://forumnet.ircam.fr/product/panoramix-en/
?
Marc
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Bo-Erik Sandholm
2017-09-14 09:57:31 UTC
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Ambdec works via jack
Post by David Stalling
Thank you Marc and Jörn for your responses. Plenty of food for thought. I
needed a quick solution and what worked for me in the end with the
Raspberry Pi was VLC player (compiled with HW acceleration) connecting via
JACK to my USB soundcard. The next time I will try mpv.
Jörn, are there any particular decoders you can recommend that would work
via JACK?
Best,
David
------------------------------
Post by Jörn Nettingsmeier
Also, consider using JACK to connect a decoder after the player, so that
you can store your media in portable Ambisonics format rather than
rendered to a particular layout.
Greetings on the way home from https://vdt-icsa.de,
J?rn
--
J?rn Nettingsmeier
De Rijpgracht 8, 1055VR Amsterdam, Nederland
Tel. +49 177 7937487
Meister f?r Veranstaltungstechnik (B?hne/Studio), Tonmeister VDT
http://stackingdwarves.net
------------------------------
About mpv; the audio routing syntax is slightly different than for
https://github.com/mpv-player/mpv/blob/master/DOCS/man/af.rst <
https://github.com/mpv-player/mpv/blob/master/DOCS/man/af.rst>
Looking at https://vdt-icsa.de <https://vdt-icsa.de/>, I see that IRCAM
have a new tool (not that new, but still worth mentioning): panoramix.
It looks like the perfect spatial audio companion for live sound, and the
http://forumnet.ircam.fr/product/panoramix-en/
?
Marc
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