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Update RELEASENOTES-DEVELOPMENT.md

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Mike Brady
2024-06-01 22:30:50 +01:00
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RELEASENOTES-DEVELOPMENT.md
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Version 4.3.4-dev-3-g238e4bbf
==
**Enhancement -- HDMI Ports**
* If your device has HDMI ports, the Shairport Sync help command has previously listed them with a `hw:` prefix, e.g. `hw:vc4hdmi0`. Unfortunately, if you use a name like that as an `output_device` name for a HDMI device in Shairport Sync, the device may not be usable.
But if you use the `hdmi:` prefix, e.g. `hdmi:vc4hdmi0`, it _may_ work: something capable of receiving audio must be connected to the HDMI port and it must be powered on _when your device boots up_.
The enhancement is to update the help text for the ALSA backend to denote HDMI devices using the `hdmi:` prefix rather than `hw:`. Now, for example, on a Raspberry Pi 4, the output is:
```
Settings and options for the audio backend "alsa":
-d output-device set the output device, default is "default".
-c mixer-control set the mixer control name, default is to use no mixer.
-m mixer-device set the mixer device, default is the output device.
-i mixer-index set the mixer index, default is 0.
hardware output devices:
"hdmi:vc4hdmi0"
"hdmi:vc4hdmi1"
```
Previously it was:
```
Settings and options for the audio backend "alsa":
-d output-device set the output device, default is "default".
-c mixer-control set the mixer control name, default is to use no mixer.
-m mixer-device set the mixer device, default is the output device.
-i mixer-index set the mixer index, default is 0.
hardware output devices:
"hw:vc4hdmi0"
"hw:vc4hdmi1"
```
...which is technically correct but unfortunately not very useful.
Get more information about the hardware output devices using [sps-alsa-explore](https://github.com/mikebrady/sps-alsa-explore) (also available as a Docker image).
Version 4.3.4-dev-1-gc945f3a9
==
This is effectively release version 4.3.3 -- the starting point for 4.3.4.