Investigate feasibility of 24-bit ALAC support #31
Description
Investigate the feasibility of supporting audio quality capabilities in addition to the current one of ALAC with sample rate of 44100, bits per sample of 16 and 2 channels.
Some early code suggestions from Claude:
extern int g_bits_per_sample;
extern int g_use_alac; // 1 = ALAC encoding, 0 = raw PCM
extern int g_alac_24bit; // 1 = use 24-bit ALAC, 0 = use 16-bit ALAC
As part of the MDNS discovery details, AirPlay2 devices provide a features item that contains a bitmask of the features that the device supports. Some of these bits are dedicated to audio formats. So, we could use them to determine the appropriate quality level of audio to stream to the device.