Streaming fallback - Revision history

Camille at 14:31, 5 November 2020

2020-11-05T14:31:01Z

Camille at 14:15, 4 November 2020

2020-11-04T14:15:20Z

Camille: Created

2020-11-04T14:04:30Z

Created

New page

This shows a way to have a fallback Streaming on SOUND4 Stream x2/x4/x8 processors.

=== Principle ===
This will use the onboard Ethernet to send and receive Livewire GPIO.

The Main process will send a GPO (called GPI in Livewire) to inform when it detects no Audio.

The Fallback process will receive this information as a GPI (called GPO in Livewire) and Enable the Streaming accordingly.

=== General Setup ===
Use 2 computers each with a SOUND4 processor and Streaming extension.

Provide both with audio (either Livewire/AES67 input, or Automation software playing directly on it).

Configure the same streams on both cards, but put only first On.

The 2 cards' Ethernet ports must be on the same network, and could be directly connected without a switch. They must be configured either in DHCP or with a fixed IP.

This needs the SOUND4 Streaming Extension [[SOUND4 Stream Versions#2.4.15|2.4.15]] to detect audio presence.

''NOTE: to have working GPIOs on cards, you need a recent enough board version (>=1.5) and driver (Windows>=2020-07-15, Linux>=2.14) and server (>=4.1.77).''

=== Main setup ===
In Setup->GPIO, configure one Pin of One Livewire Port GPI to send Stream Audio Detected Equal to No, like this for instance:
[[File:Streaming Fallback Livewire GPI setup.png|border|center|frameless|600x600px]]
You may add a Delay Before Action to limit the concurrent streaming.

Which results in this:
[[File:Streaming Fallback Livewire GPI.png|border|center|frameless|966x966px]]

=== Fallback setup ===
In Setup->GPIO, configure the Livewire GPO Port 1 Config with [[Gpio|Livewire snake mode]]. Supposing that main process board has IP 192.168.4.82 and you used Livewire port 1 for main, you need to put "192.168.4.82/1"

Then, on the same pin number you configured on the Main processor, for Action select "Stream General" and Value "On" and for Action Off select "Stream General" and Value Off.
[[File:Streaming Fallback Livewire GPO setup.png|border|center|frameless|600x600px]]

Which results in this:
[[File:Streaming Fallback Livewire GPO.png|center|frameless|972x972px]]
<br />

@@ Line 17: / Line 17: @@
 The 2 cards' Ethernet ports must be on the same network, and could be directly connected without a switch. They must be configured either in DHCP or with a fixed IP.
-This needs the SOUND4 Streaming Extension [[SOUND4 Stream Versions#2.4.15|2.4.15]] to detect audio presence.
+This needs the SOUND4 Streaming Extension [[SOUND4 Stream Versions#2.4.16|2.4.16]] to detect audio presence.
 ''NOTE: to have working GPIOs on cards, you need a recent enough board version (>=1.5) and driver (Windows>=2020-07-15, Linux>=2.14) and server (>=4.1.77).''
@@ Line 39: / Line 39: @@
 [[File:Streaming Fallback Livewire GPO.png|center|frameless|972x972px]]
-=== Advanced error handling ===
+===Advanced error handling===
 We do not have a way to check a heartbeat to detect if the Main processor is shutdown and does not send updates, so there is currently no way to start the Fallback in this case.

@@ Line 1: / Line 1: @@
 This shows a way to have a fallback Streaming on SOUND4 Stream x2/x4/x8 processors.
-=== Principle ===
+===Principle===
 This will use the onboard Ethernet to send and receive Livewire GPIO.
@@ Line 8: / Line 8: @@
 The Fallback process will receive this information as a GPI (called GPO in Livewire) and Enable the Streaming accordingly.
-=== General Setup ===
+===General Setup===
 Use 2 computers each with a SOUND4 processor and Streaming extension.
@@ Line 21: / Line 21: @@
 ''NOTE: to have working GPIOs on cards, you need a recent enough board version (>=1.5) and driver (Windows>=2020-07-15, Linux>=2.14) and server (>=4.1.77).''
-=== Main setup ===
+===Main setup===
 In Setup->GPIO, configure one Pin of One Livewire Port GPI to send Stream Audio Detected Equal to No, like this for instance:
 [[File:Streaming Fallback Livewire GPI setup.png|border|center|frameless|600x600px]]
@@ Line 29: / Line 29: @@
 [[File:Streaming Fallback Livewire GPI.png|border|center|frameless|966x966px]]
-=== Fallback setup ===
+===Fallback setup===
 In Setup->GPIO, configure the Livewire GPO Port 1 Config with [[Gpio|Livewire snake mode]]. Supposing that main process board has IP 192.168.4.82 and you used Livewire port 1 for main, you need to put "192.168.4.82/1"
@@ Line 38: / Line 38: @@
 Which results in this:
 [[File:Streaming Fallback Livewire GPO.png|center|frameless|972x972px]]
-<br />