Rockbox as an Application (Android, WebOS etc.)

[dmelliot]

Not sure if this has been discussed (couldn't find a way to search this thread).
But, if recording is possible with the software, what devices would actually support this?

I would assume that mic level mono recording would be fine as this would be part of the hardware for using headphones with a hands free mic.

But are there any Android (or other) devices that could do stereo recording (line or mic level) ?

Thanks

[saratoga]

But, if recording is possible with the software,

Wiki says no recording.

[kugel.]

But, if recording is possible with the software, what devices would actually support this?

Possible, but not implemented yet. Feel free to hack around and post a patch though.

[paulheu]

this might be a good start for any takers.. (not asking for anything just pointing out..)

http://www.benmccann.com/dev-blog/android-audio-recording-tutorial/

[tonyg362]

Can anybody explain how to compile rockbox for Android statically? I tried adding the -static flag to the makefile but I get errors.

[bluebrother]

Why do you want to do this?

[tonyg362]

I am trying to run rockbox in the gem5 full-system simulator. It crashes when trying to load rockbox.so. With gem5 applications are typically compiled statically.

So, can it be compiled statically for Android?

[gevaerts]

I am trying to run rockbox in the gem5 full-system simulator. It crashes when trying to load rockbox.so. With gem5 applications are typically compiled statically.

So, can it be compiled statically for Android?

If you're asking if rockbox.so can be made not to depend on any other shared libraries, I'd say maybe, you'll have to experiment.

If you're asking if rockbox can be made not to have a separate rockbox.so, then no. That's how native code works on android.

[torne]

I am trying to run rockbox in the gem5 full-system simulator. It crashes when trying to load rockbox.so. With gem5 applications are typically compiled statically.

So, can it be compiled statically for Android?

gem5 is, er, not an Android emulator, so it's not going to work. To run an Android app in a simulator you need to be running a full Android rom in the simulator first, at which point any normal android apk will just install

[tonyg362]

Correct, gem5 is not an Android emulator. It is a full-system architectural simulator that models the ARM architecture with enough detail to boot unmodified Android. I have booted android on gem5.

Besides the reason for wanting to compile statically is irrelevant. Can anybody tell me how to do it?

[tonyg362]

I got it working, if anybody cares. Didn't need static compilation after all.

[tonyg362]

Is there a way to install rockbox on android without an sdcard? I have installed rockbox an an android device without an sdcard slot. When I try to play an mp3 it gives me an error accessing playlist control file message. Looking at how rockbox is installed on a regular android device it seems to put the rockbox directory which contains these configure and playlist control files in the sdcard directory. I tried to manually create this and add the files but it still doesn't work. Any ideas?

[lefko]

I love rockbox.  I have several sansa's and love that I can get music in and out that way.  I use it at Strawberry music festival for the festival radio station (where we only play things on the radio that have been performed live at Strawberry music festival).  Rockbox is used there for the overnight recordings.  It's on shuffle/repeat.  I use sansa e200's there for that and it works very well (although nobody seems to know the interface so I have to make sure it's set up right and leave it running hours before it's actually used.).

Anyway I got an Atrix and was delighted to see that there was an android port.  This way I can test things out for the overnight playlists I am creating. 

However I've noticed a few things
Atrix - android port: 32gb sd card, 192 bps Constant mp3

• There appear to be issue with playback.  Sometimes it just stops playing and I have to exit the program and restart. Random song that plays fine normally
• I added another file to the SD card in a directory where I did not have a playlist.  I had previously paused rockbox.  There were two other files in the directory.  I believe I also deleted one file (playing down a list of files and deleting the ones already played) When I restarted the playback via resume play I was resuming at the pause for the next file, the one I just uploaded
• The fades appear not to work at all
• the settings seem to change randomly.  However this may be because I didn't lock the device.  (suggest lock playback setting in playback settings section)
• It's unclear to me which skins/themes will work

Any help/pointers in either cockpit errors or whether they are bugs.  Are these bug report worthy?
Post Merge: July 23, 2011, 11:08:49 AMIn regards to the first bullet:I can tell you it happened pretty quick with a monkey's audio file the first time I was able to successfully play this format, but trying it again and it's gone through 2 songs without having the issue.  With mp3 it can go for days without the problem. 

[[Saint]]

• There appear to be issue with playback.  Sometimes it just stops playing and I have to exit the program and restart.

It *is* still classed as "Unusable"...

• the settings seem to change randomly.  However this may be because I didn't lock the device.  (suggest lock playback setting in playback settings section)

Just lock the screen (with the devices built-in keylock)*, a soft lock on a device with a screen that can be locked so easily seems pointless to me, and also like it could cause more frustration that it cured, ie. "I have the screen unlocked but its stuck on <blah> and I can't change anything, why?"

• It's unclear to me which skins/themes will work

Any theme developed for a target resolution that is the same dimensions (or lesser) than your device.

*Edit

[St.]

[bluebrother]

There appear to be issue with playback.  Sometimes it just stops playing and I have to exit the program and restart. Random song that plays fine normally

What build are you using? Is it current? There has been an issue with playback on some phones (see
FS#12006 and FS#12064). It *should* be fixed but lately I got the impression that it reappeared in some cases.

the settings seem to change randomly.  However this may be because I didn't lock the device.  (suggest lock playback setting in playback settings section)

This sounds like to be caused by the fact that Rockbox writes its configuration / playback state to a file on the SD card, but when you unmount the card on the phone (which happens if you connect it to the PC) this obviously fails. Usually players don't have this issue (since Rockbox goes into a USB mode then) so this is a problem with how Rockbox currently handles this. It's simply not meant to handle that case so someone has to adjust it.

I don't understand what you're referring to by "lock playback" though.