v0.3.0 — Now Playing Quality sensors

What's new

Six new read-only diagnostic sensors that surface what the AVR is actually decoding and outputting right now — perfect for verifying that Atmos, DTS:X, or 4K passthrough is really reaching your receiver.

New entities

Entity	Example state
sensor.denon_audio_format	Dolby Atmos, Dolby Audio - DD, DTS-HD MA, DTS:X, PCM
sensor.denon_audio_category	Dolby / DTS / PCM / Multi-ch PCM / Auro-3D / HEOS/Streaming
sensor.denon_audio_sample_rate	48 kHz, 96 kHz, 192 kHz
sensor.denon_video_input_resolution	4K50, 1080p60, 2160p24
sensor.denon_video_output_resolution	4K50, 1080p60, 2160p24
sensor.denon_video_scaling	Passthrough / Upscaling / Downscaling

All six are grouped in Home Assistant's Diagnostic section on the device page and update automatically as the source device (Blu-ray, streaming box, console) switches formats.

How it works

The Denon /ajax/* HTTP API does not expose live playback format info — only setup menu values. To bridge that gap, the integration now opens a very brief telnet connection (~1 second) once per poll cycle, sends four queries (SSINFAISSIG ?, SSINFAISFSV ?, SSINFSIGRES ?, SYSDA ?), and closes the socket.

Everything else in the integration (Speaker Presets, Audyssey, Zone Power, ECO, etc.) still uses pure HTTP — nothing else has changed.