Hi,
I used avcodec and avformat libraries in Windows Mobile (5.0-6.0) for
years, but now, with Windows Mobile 6.1, the required architecture is
changed from ARM to THUMB.
Many projects use av libraries for mobile (like ambulant player), but
with WM6.1 there isn't a solution to compile AV libraries in thumb
architecture (or i haven't found it!).
Another possible reason is that. When I compile with VS2005 an
application for WM6.1 they make me a thumb application, and if I include
an arm library (with or whitout internetwork support for thumb) the
application doesn't work for an errate use of virtual memory:
http://cegcc.sourceforge.net/docs/faq.html#DllDoesNotWorkWithWindowsMobile6.1
http://blogs.msdn.com/hopperx/archive/2008/09/19/writeable-code-sections-got-you-down-fear-no-more.aspx
How can I resolve this problem?
This is my environement:
* MinGW-5.1.4
* MSYS-1.0.10
* make-3.81
* cegcc-0.51.0-1
* mingw32ce-0.51.0-1
* bash-3.1
* binutils-2.17.50
* coreutils-5.97
* cygwin1.dll_1.5.25
* gcc-core-3.4.5
* gcc-g++-3.4.5
* gcc-objc-3.4.5
* w32api-3.13
* Visual Studio 2005
* FFMpeg 0.4.9-pre1
This is my configure for ARM compiling (working):
./configure --enable-memalign-hack --arch=armv4i --build-suffix=
--cross-prefix=arm-wince-mingw32ce- --enable-small --enable-static
--enable-shared --disable-mmx --disable-zlib --disable-ipv6
--disable-debug --disable-ffmpeg --disable-ffserver --disable-ffplay
--disable-encoders --disable-network --disable-muxers --disable-decoders
--disable-filters --disable-demuxers --disable-devices
--disable-protocols --disable-bsfs --disable-parsers --enable-decoder=mpeg4
This is my configure for THUMB compiling (working but result is arm not
thumb):
./configure --enable-memalign-hack --arch=thumb
--cross-prefix=arm-wince-mingw32ce- --enable-small --enable-static
--enable-shared --disable-mmx --disable-zlib --disable-ipv6
--disable-debug --disable-ffmpeg --disable-ffserver --disable-ffplay
--disable-encoders --disable-network --disable-muxers --disable-decoders
--disable-filters --disable-demuxers --disable-devices
--disable-protocols --disable-bsfs --disable-parsers
--enable-decoder=mpeg4 --extra-cflags="-march=armv5t -mtune=xscale
-mno-thumb-interwork -mno-thumb"
PS:
If i use --cross-compile or --os-target=WinCE doesn't work
Any suggest?
Marco
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