SqueezePlay Audio Playback

SqueezePlay is being extended to include audio playback, and will include the same features that are available on the Squeezebox products. This will be a replacement for the SoftSqueeze and squeezeslave desktop players.

The following feature matrix shows the capabilities for the various players.

		Squeezebox	SqueezePlay	SoftSqueeze	SqueezeSlave
Platforms
Ubicom ip3k		Yes
SqueezeOS arm			Yes
Windows XP			Yes	Yes	Yes
Windows Vista			TODO	Yes	Yes
OS X Intel			Yes	Yes	Yes
OS X PowerPC			TODO	Yes	Yes
Linux Intel			Yes	Yes	Yes
Linux PowerPC			Yes	Yes	Yes
Solaris Intel			No	Yes	Yes
Solaris SPARC			No	Yes	Yes
Audio features
Buffer sample size		24	32	16	16
Gain control		Yes	TODO	Yes	Yes
Gain control (ramp)		TODO	TODO
Replay gain		Yes	Yes	Yes	Yes
Crossfade	Crossfade	Yes	Yes	No
	Fade in	Yes	TODO
	Fade out	Yes	TODO
	Fade in & out	Yes	TODO
Resampling	8 kHz	Yes	NEEDED?
	11.025 kHz	Yes	NEEDED?
	12 kHz	Yes	NEEDED?
	16 kHz	Yes	NEEDED?
	22 kHz	Yes	NEEDED?
	24 kHz	Yes	NEEDED?
	32 kHz	Yes	NEEDED?
	88.2 kHz	Yes	NEEDED?
Fixed Digital Outputs		Yes	NEEDED?
Preamp Volume Control		Yes
Synchronization
Decode buffer threshold		Yes	Yes	Yes	Yes (no STMl)
Output buffer threshold		TODO	TODO	TODO	Partial
Resume at		Yes	TODO	Yes	No
Pause for		Yes	TODO	Yes	Yes
Skip ahead		Yes	TODO	Yes	No
Elapsed ms		Yes	Yes	Yes	Yes
Audio delay		N/A	TODO	?	Yes
Direct Streaming					No
Slimproto BODY		Yes	TODO	Yes
Slimproto CONT		Yes	TODO	Yes
Shoutcast meta data		Yes	TODO	Yes
Asf meta data		Yes	TODO
Direct HTTP
Slimproto HTTP		Yes	TODO	Yes?
Visualizers
Digital VU Meter		Yes	TODO	Yes
Analogue VU Meter		Yes	TODO	Yes
Spectrum Analyzer		Yes	TODO	Yes
Status
Slimproto status	CONNECT	Yes	?	?	?
	ESTABLISH	Yes	?	?	Yes
	ENDOFHEADERS	Yes	?	?	No
	AUTOSTART	Yes	?	?	Yes
	TIMER	Yes	?	?	?
	UNDERRUN	Yes	?	?	Yes
	CLOSE	Yes	?	?	Yes
	PAUSE	Yes	?	?	Yes
	UNPAUSE	Yes	?	?	Yes
	FULL	Yes	?	?	?
	DECODER_UNDERRUN	Yes	?	?	Yes
	TRACK_STARTED	Yes	?	?	Yes
	NOT_SUPPORTED	Yes	?	?	Yes
	OUTPUT_UNDERRUN	Yes	?	?	Partial
WAV/AIFF
Sample Freq	8 kHz	Yes	Yes
	11.025 kHz	Yes	Yes
	12 kHz	Yes	Yes
	16 kHz	Yes	Yes
	22 kHz	Yes	Yes
	24 kHz	Yes	Yes
	32 kHz	Yes	Yes
	44.1 kHz	Yes	Yes	Yes	Yes
	48 kHz	Yes	Yes
	88.2 kHz	TR Only	Yes
	96 kHz	TR Only	Yes
Sample Size	8 bit	Yes	Yes	?	?
	16 bit	Yes	Yes	Yes	Yes
	24 bit	Yes	Yes	?	?
	32 bit (24 bit playback)	Yes	Yes	?	?
Stereo / Mono		Yes	Yes	Yes	Yes
Gapless Playback		Yes	Yes	Yes	Yes
MP3
Sample Freq	8 kHz (MPEG 2.5)	Yes	Yes	?
	11.025 kHz (MPEG 2.5)	Yes	Yes	?
	12 kHz (MPEG 2.5)	Yes	Yes	?
	16 kHz (MPEG 2.5)	Yes	Yes	?
	22 kHz (MPEG 2.5)	Yes	Yes	?
	24 kHz (MPEG 2.5)	Yes	Yes	?
	32 kHz	Yes	Yes	?
	44.1 kHz	Yes	Yes	Yes	Yes
	48 kHz	Yes	Yes
Stereo / Mono		Yes	Yes	Yes	Yes
Lame Gapless Header		Yes	Yes
Rhapsody Direct (192k MP3)		Yes	TODO
FLAC
Sample Freq	8 kHz	Yes	Yes
	11.025 kHz	Yes	Yes
	12 kHz	Yes	Yes
	16 kHz	Yes	Yes
	22 kHz	Yes	Yes
	24 kHz	Yes	Yes
	32 kHz	Yes	Yes
	44.1 kHz	Yes	Yes	Yes	Yes
	48 kHz	Yes	Yes
	88.2 kHz	TR Only	Yes
	96 kHz	TR Only	Yes
Stereo / Mono		Yes	Yes	Yes	Yes
Gapless Playback		Yes	Yes	Yes	Yes
Ogg
Sample Freq	?	?
Stereo / Mono		Yes
Gapless Playback		Yes
WMA
Sample Freq		?	TODO
Stereo / Mono		Yes	TODO
Voice Codec		Yes	TODO
???
Apple Lossless
Sample Freq			TODO
Stereo / Mono			TODO
Gapless Playback			TODO