This is relatively easy to achieve using as reference, the BlueZ API available here. I remember having successfully bound my self using a native application to this d-bus channel and got access to the various events BlueZ was posting.
BLUETOOTH AUDIO TUNER ANDROID ANDROID
In fact, Android connects to the DBUS_SYSTEM channel and listens to every BlueZ advertisement, such as events, file descriptors. Now you will have to interact with BlueZ to react appropriately when an A2DP source device will start to stream audio to your phone.Īndroid and BlueZ are talking to each other via D-BUS. Reboot, nearby devices should now recognize your device as an A2DP sink. To do this, you must modify the nf file (usally located in /etc/bluetooth/) and make sure the Enable key exists and the value Source is attached to this key, so you will get something like : Enable=Source You have to change this first, so nearby devices may recognize your device as a sink. Your bluetooth-enabled Android device is advertising itself as an A2DP source device by default.
I will try to guide you, as I was also interested in doing this my self in the near past.
BLUETOOTH AUDIO TUNER ANDROID BLUETOOTH
The fact is that Android, as you mentioned it, does not implement the API calls to BlueZ (the bluetooth stack Android uses till Jelly Bean 4.1) regarding A2DP sink capabilities. At least if you want to use A2DP Sink role. Trying to write an Android application that handles this will not be the solution. I thought of writing my own app, but if anyone knows of an app to solve this I'd be glad to hear about it! I'm using Android 2.3 Gingerbread. The received data stream will be in PCM or Mp3. To be clear, I'm not interested of using the A2DP profile! I want to stream the data via the RFCOMM (SPP Bluetooth profile). Third, how do I convert the received data into audio AND play the audio simultaneously, in "real time"? Can I just use onDataReceived? Second, if it isn't possible to receive a bit stream via RFCOMM as a PCM or Mp3 stream, how do I convert the received bit stream into audio? But what about receiving an ordinary bit stream, and then convert the data into audio in the application? I was thinking of receiving an PCM or Mp3 data stream via the RFCOMM (SPP Bluetooth profile), and then play it using AudioTrack.įirst, how do I receive a bit stream on my Android phone via the RFCOMM? And is it possible to receive a bit stream via RFCOMM as a PCM or Mp3 stream? Looks like there are a lot of people that's searching for a solution for this problem. I thought of using the A2DP profile, but is seems as if Android doesn't support A2DP sink. I want to create an Android application that is capable of receiving an audio stream.
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