[build] Added the modified build script based on an old version of https://github...

[casparcg] / dependencies64 / ffmpeg / ffmpeg-build-linux / README.md

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+FFmpeg static build
+===================
+
+Three scripts to make a static build of ffmpeg with all the latest codecs (webm + h264).
+
+Just follow the instructions below. Once you have the build dependencies,
+just run ./build.sh, wait and you should get the ffmpeg binary in target/bin
+
+Build dependencies
+------------------
+
+    # Debian & Ubuntu
+    $ apt-get install build-essential curl tar
+
+       # OS X
+       # install XCode, it can be found at http://developer.apple.com/
+       # (apple login needed)
+       # <FIXME???>
+
+Build & "install"
+-----------------
+
+    $ ./build.sh or build-ubuntu.sh
+    # ... wait ...
+    # binaries can be found in ./target/bin/
+
+NOTE: If you're going to use the h264 presets, make sure to copy them along the binaries. For ease, you can put them in your home folder like this:
+
+    $ mkdir ~/.ffmpeg
+    $ cp ./target/share/ffmpeg/*.ffpreset ~/.ffmpeg
+
+Debug
+-----
+
+On the top-level of the project, run:
+
+       $ . env.source
+       
+You can then enter the source folders and make the compilation yourself
+
+       $ cd build/ffmpeg-*
+       $ ./configure --prefix=$TARGET_DIR #...
+       # ...
+
+Remaining links
+---------------
+
+I'm not sure it's a good idea to statically link those, but it probably
+means the executable won't work across distributions or even across releases.
+
+    # On Ubuntu 10.04:
+    $ ldd ./target/bin/ffmpeg 
+       not a dynamic executable
+
+    # on OSX 10.6.4:
+    $ otool -L ffmpeg 
+       ffmpeg:
+               /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 125.2.0)
+
+TODO
+----
+
+ * Add some tests to check that video output is correctly generated
+   this would help upgrading the package without too much work
+ * OSX's xvidcore does not detect yasm correctly
+ * remove remaining libs
+