SIP SIMPLE Client SDK

h1. WIPVideo

Notes while video is a work in progress. Repository: http://devel.ag-projects.com/cgi-bin/darcsweb.cgi?r=saul/python-sipsimple-video;a=summary

h2. Dependencies

The following dependencies are required to build PJSIP with video support (including H264)

* SDL 2
* ffmpeg (libavformat, libswscale, libavcodec, libavutil)
* libx264

Versions I have tried:

* SDL (2.0.0-7655)
* ffmpeg (2.0 release)
* libx264 (snapshot-20130806-2245-stable)



h2. Patches

-If the above versions are used, PJSIP needs to be patched with the attached patch (avcodec.diff) or it won't compile. This does not occur when compiling it against the latest library versions on Debian unstable.- No longer needed.



h2. Compiling dependencies

All dependencies will be compiled to a directory in the user's HOME directory:

<pre>
export MY_VIDEO_LIBS=$HOME/work/ag-projects/video/local
</pre>



h3. libx264

<pre>
./configure --enable-shared --disable-avs --disable-swscale --disable-lavf --disable-ffms --disable-gpac --prefix=$MY_VIDEO_LIBS
make
make install

# If a 32bit build is wanted, then run this configure instead:
./configure --host=i386-apple-darwin --enable-shared --disable-avs --disable-swscale --disable-lavf --disable-ffms --disable-gpac --prefix=$MY_VIDEO_LIBS
</pre>



h3. ffmpeg

<pre>
# Some exports
export PKG_CONFIG_PATH=$MY_VIDEO_LIBS/lib/pkgconfig

./configure --enable-shared --disable-static --enable-memalign-hack --enable-gpl --enable-libx264 --prefix=$MY_VIDEO_LIBS --extra-cflags="`pkg-config --cflags x264`" --extra-ldflags="`pkg-config --libs x264`"
make
make install

# If a 32bit build is wanted do:
./configure --enable-shared --disable-static --enable-memalign-hack --enable-gpl --enable-libx264 --prefix=$MY_VIDEO_LIBS --extra-cflags="`pkg-config --cflags x264`" --extra-ldflags="`pkg-config --libs x264`" --cc="gcc -m32" --disable-asm
# TODO: I WANT MY ASM
</pre>



h3. SDL

<pre>
./configure --disable-audio --prefix=$MY_VIDEO_LIBS
make
make install

# If a 32bit build is wanted:
CFLAGS="-arch i386" CXXFLAGS="-arch i386" LDFLAGS="-arch i386" ./configure --disable-audio --prefix=$MY_VIDEO_LIBS
</pre>



h2. Compiling PJSIP (pjsua, for testing)

<pre>
svn co http://svn.pjsip.org/repos/pjproject/trunk pjsip
cd pjsip
echo "#define PJMEDIA_HAS_VIDEO 1" > pjlib/include/pj/config_site.h
./configure --with-sdl=$MY_VIDEO_LIBS --with-ffmpeg=$MY_VIDEO_LIBS
make dep
make
# pjsua will be located in pjsip-apps/bin/
</pre>

h2. Proposed API

TODO