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Rockbox
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Michael Sevakis aba6ca0881 Fix resampling clicking as much as possible at the moment. 1) Upsampling clicked because of size inaccuracies returned by DSP. Fix by simplifying audio system to use per-channel sample count from codec to pcm buffer. 2) Downsampling affected by 1) and was often starting passed the end of the data when not enough was available to generate an output sample. Fix by clamping input range to last sample in buffer and using the last sample value in the buffer. A perfect fix will require a double buffering scheme on the resampler to sufficient data during small data transients on both ends at all times of the down ratio on input and the up ratio on output. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12218 a1c6a512-1295-4272-9138-f99709370657
2007-02-07 00:51:50 +00:00
apps Fix resampling clicking as much as possible at the moment. 1) Upsampling clicked because of size inaccuracies returned by DSP. Fix by simplifying audio system to use per-channel sample count from codec to pcm buffer. 2) Downsampling affected by 1) and was often starting passed the end of the data when not enough was available to generate an output sample. Fix by clamping input range to last sample in buffer and using the last sample value in the buffer. A perfect fix will require a double buffering scheme on the resampler to sufficient data during small data transients on both ends at all times of the down ratio on input and the up ratio on output. 2007-02-07 00:51:50 +00:00
bootloader Oops. sleep() doesn't work on PortalPlayer builds. Use udelay() instead. 2007-01-28 20:40:58 +00:00
docs Increase disk thread stack on the Sansa in line with the changes in r12093. Fixes the recent Sansa crashes. Thanks to Rene Peinthor 2007-02-01 20:22:19 +00:00
firmware Optimise EQ coef calculation routines for both speed and size. Move now unneeded fsqrt function to plugin fixed point library in case it'll be needed. Move all fixed point helper macros to dsp.h. Added FRACMUL_SHL macro to facilitate high-precision shifting of 64 bit multiplies and remove rounding from macsr in main thread to make this work as intended. 2007-02-05 01:01:15 +00:00
flash Bootbox now needs target includes. 2006-11-27 02:34:22 +00:00
fonts remove chicago and xtal fonts. they have been replaced by the nedore and nimbus fonts a long time ago 2007-01-30 09:09:07 +00:00
gdb Adapted more Makefiles to the more efficient info printing. 2006-10-30 01:40:20 +00:00
manual Made ipodpatcher use slightly more clear for linux users. 2007-02-05 21:16:16 +00:00
rbutil Fix typo 2006-12-14 15:51:24 +00:00
tools Oops, we should close the devices during the scan 2007-02-06 22:48:30 +00:00
uisimulator Removed unused 'mode' parameter from mkdir() for consistency with creat(). 2007-02-03 10:28:55 +00:00
wps removed since there's no UniCatcher for H10 5GB 2007-02-04 13:16:27 +00:00

docs/README 

               __________               __   ___.
     Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
     Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
     Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
     Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
                       \/            \/     \/    \/            \/

Build Your Own Rockbox

1. Check out 'rockbox' from SVN (or extract a downloaded archive).

   $ svn co svn://svn.rockbox.org/rockbox/trunk rockbox

     or

   $ tar xjf rockbox.tar.bz2

2. Create a build directory, preferably in the same directory as the firmware/
   and apps/ directories. This is where all generated files will be written.

   $ cd rockbox
   $ mkdir build
   $ cd build

4. In your build directory, run the 'tools/configure' script and enter what
   target you want to build for and if you want a debug version or not (and a
   few more questions). It'll prompt you. The debug version is for making a
   gdb version out of it. It is only useful if you run gdb towards your target
   Archos.

   $ ../tools/configure

5. *ploink*. Now you have got a Makefile generated for you.

6. Make sure you have sh/arm/m68k-elf-gcc and siblings in the PATH. Make sure
   that you have 'perl' in your PATH too.

   $ which sh-elf-gcc
   $ which perl

7. Run 'make' and soon the necessary pieces from the firmware and the apps
   directories have been compiled, linked and scrambled for you.

   $ make
   $ make zip

8. unzip the rockbox.zip on your music player, reboot it and
   *smile*.

Whenever the tools/configure script gets updated, you can make your makefile
updated too by running 'tools/configure update'.

If you want to build for more than one target, just create several build
directories and create a setup for each target:

   $ mkdir build-fmrecorder
   $ cd build-fmrecorder
   $ ../tools/configure

   $ mkdir build-player
   $ cd build-player
   $ ../tools/configure

Questions anyone? Ask on the mailing list. We'll be happy to help you!