Changes between Version 13 and Version 14 of CompilationGuide/MSVC

Timestamp:

Nov 2, 2015, 6:51:01 PM (11 years ago)

Author:

Stefano Sabatini

Comment:

add basic instructions to build external libraries with msvc

CompilationGuide/MSVC

@@ -118 +118 @@
 == Compiling FFmpeg with external libraries ==
 
-In order to build FFmpeg with support to external libraries, you need to make sure that the libraries and headers are placed in a location specified by the INCLUDE and LIB directories referenced by the VC compiler and linker.
+In order to build FFmpeg with support to external libraries, you need to make sure that the libraries and headers are placed in a location specified by the INCLUDE and LIB directories referenced by the VC compiler and linker. In case multiple libraries are used, you could use a common prefix to install all the libraries, so that you have to specify a single location.
 
 Also, you may need to compile the libraries themselves with VC in order to make it possible to link them when building the FFmpeg DLLs.
+
+The following subsections document how you can build some of the external libraries employed by FFmpeg using VC. Note that the setup step is the same for all the libraries (so it can be done just once, then you can build several libraries using the same MSYS terminal session).
+
+=== libx264 ===
+
+The following example command will configure libx264:
+{{{
+CC=cl ./configure --enable-shared --prefix=<PREFIX> --extra-cflags="-DNO_PREFIX"
+make
+make install-lib-shared
+}}}
+
+The `NO_PREFIX` flag may be necessary to make linkable libraries.
+
+
+=== libopenh264 ===
+
+libopenh264 provides no configuration system, so the build parameters have to be specified either by editing the Makefile, or by setting the parameters on the commandline.
+The following command will build the openh264 library with VC:
+{{{
+make OS=msvc PREFIX=<PREFIX>
+make install
+}}}