Openmoko media player and direct mp3 to bluetooth headphones
andy at openmoko.com
Thu Feb 26 03:59:23 CET 2009
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Somebody in the thread at some point said:
| Daniel Benoy wrote:
|> Apparently bluez supports sending mp3 data directly to bluetooth stereo
|> headphones, rather than using CPU taxing SBC compression encoding.
|> (FYI: The way to test direct mp3 is like this: gst-launch filesrc
|> location=<some mp3 file> ! mp3parse ! a2dpsink device=XX:XX:XX:XX:XX:XX
| I'm in the process of making a new media player (OK well - 2 formats
| now mp3 and ogg - with maybe aac later if I can get a GPL codec) called
| intone. It is essentially aimed at reducing CPU usage by using integer
| codecs (libmpg123 and tremor). I'm currently playing 44100 hz ogg files at
| about 17-19% CPU usage.
| Anyhow, your finding is very interesting. If you could post some more
| details - the version of bluez, your audio.conf, hcid.conf etc and a
| step method of sending data to the bluetooth headset (including headset
| bonding) that would be helpful.
Yes it's pretty interesting to read, especially as it pushes the "dodgy
codec" business outside of anything to do with OM, and has power advantages.
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