HOW TO CROSS-COMPILE MPEG4IP FOR ARM ?
--------------------------------------

Install my cross-compilation package from 
http://software.nautilus6.org/zaurus.php
if you don't have one (or check that you have all the necessary libraries 
cross-compiled -- like libSDL -- if you already have one, 
in that case you may have to change the paths I give).

Cross-compile and install xvid 1.0+. Read the instructions, but something like
that would do it: 
export PATH=/usr/local/arm/2.95.3/bin:$PATH 
&& cd build/generic 
&& ./configure --prefix=/usr/local/arm/2.95.3/arm-linux --host=arm-linux 
&& make 
&& make install

$ cvs -z3 -d:pserver:anonymous@cvs.sourceforge.net:/cvsroot/mpeg4ip co mpeg4ip

In lib/rtp/configure.in, comment the line testing /dev/urandom, since it cannot
be determined when cross-compiling.

Define "PROG_E1 = " in player/src/Makefile.am, since you only want to compile 
the command-line version, otherwise you have some X libraries problems.

Correct key detection in player/src/main.cpp, since the Zaurus has no CTRL key, 
and that some other keys have other codes. It's not necessary, but then you will 
maybe need to simply close the terminal connect to your Zaurus by ssh to stop 
the player.

$ export PATH=/usr/local/arm/2.95.3/bin:/usr/local/arm/2.95.3/arm-linux/bin:$PATH
$ ./cvs_bootstrap \
--enable-ipv6 \
--disable-server \
--disable-mmx \
--disable-ismacryp \
--disable-aesicm \
--disable-ppc \
--prefix=/usr/local/arm/2.95.3/arm-linux \
--exec_prefix=/usr/local/arm/2.95.3/arm-linux \
--host=arm-linux \
--x-includes=/usr/local/arm/2.95.3/arm-linux/include/X11 \
--x-libraries=/usr/local/arm/2.95.3/arm-linux/usr/X11R6/lib

In lib/gnu/Makefile and player/src/codec/mpeg4/Makefile, remove the "-Werror" 
for example: 
$ cat lib/gnu/Makefile | sed -e "s/ -Werror//g" > temp && mv temp lib/gnu/Makefile
otherwise you have (known) cast warnings like this one: 

/usr/local/arm/2.95.3/lib/gcc-lib/arm-linux/2.95.3/../../../../arm-linux/include/bits/socket.h:264: 
warning: cast increases required alignment of target type".

In more and more files you have some problems with undefined strcasestr, in that 
case declare at the beginning of those files: 

#include "lib/gnu/strcasestr.h"

for example: 

$ echo "#include \"lib/gnu/strcasestr.h\"" > tmp 
&& cat file.cpp >> tmp && mv tmp file.cpp

Comment line 275 of player/src/video_sdl.cpp with the XMoveWindow, it does not work
probably because of the older version of X development files that are available 
for the Zaurus.

$ make

Recompile mp4player (on necessary if you want video). This line was adapted 
from the original Make but I changed the flags to enable this SDL application 
to run without the 
"QPaintDevice: Must construct a QApplication before a QPaintDevice" error. 

I think this line is not correcting the problem, but it is not my priority 
and I wrote one time a similar line that worked. To understand the problem, 
look at the compilation line for the SDL example in my cross-compilation package. 
If you change the order of the terms, there are great chances it will not work 
anymore.

$ arm-linux-g++ \
-DQWS \
-Dmain=SDL_main \
-D_REENTRANT \
-DNOCONTROLS \
-fexceptions \
-Wall \
-Werror \
-Wmissing-prototypes \
-Wno-char-subscripts \
-Woverloaded-virtual \
-Wno-unknown-pragmas \
-Wno-deprecated \
-Wformat=2 \
-DPLAYER_PLUGIN_DIR=\"/usr/local/arm/2.95.3/arm-linux/lib/mp4player_plugin\" \
-g \
-O2 \
-DMPEG4IP \
-o .libs/mp4player main.o \
-Wl,-rpath \
-Wl,/usr/local/arm/2.95.3/arm-linux/lib \
../../lib/SDLAudio/src/.libs/libmpeg4ipSDL \
-lm ./.libs/libmp4player.a \
/home/fleiber/mpeg4ip/lib/sdp/.libs/libsdp.so \
/home/fleiber/mpeg4ip/player/lib/mp4util/.libs/libmp4util.so \
/home/fleiber/mpeg4ip/player/lib/libhttp/.libs/libhttp.so \
/home/fleiber/mpeg4ip/lib/msg_queue/.libs/libmsg_queue.so \
/home/fleiber/mpeg4ip/lib/mp4av/.libs/libmp4av.so \
/home/fleiber/mpeg4ip/lib/mp4/.libs/libmp4.so \
/home/fleiber/mpeg4ip/lib/mp4v2/.libs/libmp4v2.so \
./.libs/libmp4syncsdl.a \
./.libs/libmp4syncbase.a \
./.libs/libmp4playerutils.a \
../../lib/ismacryp/.libs/libismacryp.a \
-L/usr/local/arm/2.95.3/arm-linux/lib \
-lSDLmain \
/usr/local/arm/2.95.3/arm-linux/lib/libSDL.so \
-L/opt/Qtopia/sharp/lib \
-L/opt/QtEmbedded/sharp/lib/ \
-lSDL \
-lSDLmain \
-lqpe \
-lqte \
-lpthread \
-ldl \
-Wl,--rpath \
-Wl,/usr/local/arm/2.95.3/arm-linux/lib \
-Wl,--rpath \
-Wl,/usr/local/arm/2.95.3/arm-linux/lib


Install application:

$ su
# export PATH=/usr/local/arm/2.95.3/bin:/usr/local/arm/2.95.3/arm-linux/bin:$PATH
# make install

This will install :

in $prefix/include/ : 
	mp4*, mpeg4*, mpeg4ip*, sdp*, codec_plugin.h, rtp_plugin.h
in $prefix/bin/ : 
	mp4dump, mp4extract, mp4info, mp4trackdump, mp4tags, mp4player, 
	yuvdump, mpeg4vol, mpeg2video_parse, h264_parse, mpeg4ip-config
in $prefix/lib/ : 
	libmp4, libmp4v2, libmp4av, libmp4util, libmpeg4ipSDL-1.2.0, 
	libh264av, libmsg_queue, libsdp, libhttp
in $prefix/lib/mp4player_plugin/ : *

where $prefix=/usr/local/arm/2.95.3/arm-linux

Copy at least to your Zaurus: mp4player (/usr/bin/), the libraries (/usr/lib/) 
and the plugins ($prefix/lib/mp4player_plugin, you need to create this directory). 
Create links for the libraries if necessary (for example, if you copy 
xvid10_plugin.so.0.0.0, link it to xvid10_plugin.so.0).

Now you're all set! It should even be working, but it is not for me 
(sound problems and some video files do not work).
If anybody has any idea how I could solve this sound problem...

-- 
Francois Leiber
For support, see http://www.nautilus6.org/ml.php