Rockbox for the Ipod finally working, Well, MP3/AAC play at lease :) Options

[saratoga]

Rockbox boots and appears to be stable on the iPod Color/Photo, the Nano and the Video. Plugins and codecs work, including audio on the Color/Photo and Nano. There is no audio on the Video yet.

http://www.rockbox.org/twiki/bin/view/Main/IpodPort

And from the IRC channel:

mp3, aac, wavpack, ac3, wav are all OK.  Ogg and ALAC need a little optimising, FLAC has some memory alignment bugs to fix.

Amazing work, the entire Ipod project started just a few months ago, and it appears that people are submitting updates for the ipod port almost daily.

I have a 3G, which isn't supported, but it looks like someone is working on that too, so maybe I'll get to try it out soon

[bryant]

Kritip:
There was a bug that would cause mpc playback to sometimes become corrupt during track changes, and this would add [sometimes loud] noise until playback was restarted. I fixed this, however in the process I also discovered that the first and last frames in mpc files were sometimes still not being decoded correctly, and this will sometimes produce a click. Unfortunately, I haven't had any time to look into this further (and mpc is now usable, at least).

Dave:
First, thanks for all your hard work on this!

I tried to install RockBox on my very new Nano and ran into the problem that your program would not find my Nano. I grabbed your source and recompiled it to dump the unrecognized sector to disk. I found that the text "iPod" was actually at decimal offset 83 instead of 71. I uploaded a text dump here:

www.wavpack.com/sector.txt

Should I just change the constant and be on my merry way? Is that safe, or do you want to have a look first? I suspect the newness of my Nano to be the culprit. Perhaps a bounded search would be better...?

Thanks again,
David

[davechapman]

I tried to install RockBox on my very new Nano and ran into the problem that your program would not find my Nano. I grabbed your source and recompiled it to dump the unrecognized sector to disk. I found that the text "iPod" was actually at decimal offset 83 instead of 71. I uploaded a text dump here:

www.wavpack.com/sector.txt

Should I just change the constant and be on my merry way? Is that safe, or do you want to have a look first? I suspect the newness of my Nano to be the culprit. Perhaps a bounded search would be better...?

That's a completely different boot sector to other ipods I've seen - mine (a 60GB iPod Color) is as follows:

CODE

0000000: eb58 904d 5344 4f53 352e 3002 0008 0002  .X.MSDOS5.0.....
0000010: 0200 0000 00f8 0000 3f00 ff00 0000 0000  ........?.......
0000020: 807c fc06 0000 0000 0000 0000 0000 0000  .|..............
0000030: 0000 0000 0000 0000 0000 0000 0000 0000  ................
0000040: 0200 2952 368b a869 506f 6400 4d45 2020  ..)R6..iPod.ME  
0000050: 2020 4641 5433 3220 2020 33c9 8ed1 bcf4    FAT32   3.....
0000060: 7b8e c18e d9bd 007c 884e 028a 5640 b408  {......|.N..V@..

You should be able to safely disable that check (or change the constant) and continue on your merry way. I would be interested to know how you got on.

Considering how different your boot sector is, I think I'll just add an || and check for either the "original" iPod string, or your example - assuming you don't run into any other problems.

Thanks,

Dave.

[bryant]

That's a completely different boot sector to other ipods I've seen - mine (a 60GB iPod Color) is as follows:

CODE

0000000: eb58 904d 5344 4f53 352e 3002 0008 0002  .X.MSDOS5.0.....
0000010: 0200 0000 00f8 0000 3f00 ff00 0000 0000  ........?.......
0000020: 807c fc06 0000 0000 0000 0000 0000 0000  .|..............
0000030: 0000 0000 0000 0000 0000 0000 0000 0000  ................
0000040: 0200 2952 368b a869 506f 6400 4d45 2020  ..)R6..iPod.ME  
0000050: 2020 4641 5433 3220 2020 33c9 8ed1 bcf4    FAT32   3.....
0000060: 7b8e c18e d9bd 007c 884e 028a 5640 b408  {......|.N..V@..

You should be able to safely disable that check (or change the constant) and continue on your merry way.  I would be interested to know how you got on.

Considering how different your boot sector is, I think I'll just add an || and check for either the "original" iPod string, or your example - assuming you don't run into any other problems.

Thanks,

Dave.

I updated to 1.1 firmware and now my boot sector is identical to what you show here.

Funny, the problem was not that my Nano was too new, but too old!

I don't particularly want to take the risk of going back to 1.0 and trying again (and, in fact, I wouldn't really know how). Probably the safest thing would be to leave your program the way it is and force people to have recent firmware installed.

Thanks again!