blob: e71403af7f3af22a6477ec49fdc8bfd8633c2875 [file] [log] [blame]
Pull the new libvpx checkout into external/libvpx/libvpx:
$ cd external/libvpx/
$ rm -rf libvpx
$ git clone http://git.chromium.org/webm/libvpx.git
$ cd libvpx
$ git checkout <branch>
$ rm -rf .git*
Enter the subdirectory for the relevant platform. For example, armv7-neon for
armv7 targets with neon extensions. We disable many features. Some for
functional reasons and some for aesthetic ones.
Functional:
--force-target=$TARGET
The "Android" support in libvpx is targeted at the NDK and does not yet
include support for architectures such as MIPS. However, we can still generate
the necessary files for them.
--disable-runtime-cpu-detect
--disable-neon
The platform knows at build time what extensions are supported.
--sdk-path=$SDK_PATH
For configuration we do some compiler tests. It is much easier to accept them
than to work around them. This uses the compilers included in the NDK.
--enable-realtime-only
Reduce binary size when building the encoder.
Aesthetic:
--disable-examples
--disable-docs
Skip unnecessary extra makefiles.
Example:
$ cd external/libvpx/armv7a
$ ../libvpx/configure --target=armv7-android-gcc --disable-runtime-cpu-detect \
--disable-neon --sdk-path=$ANDROID_NDK_ROOT --disable-vp8-encoder \
--disable-examples --disable-docs
Run 'make libvpx_srcs.txt'
This will generate a file listing all of the required sources. It will also
generate vpx_rtcd.h and vpx_version.h
Remove the unused files leaving only:
libvpx_srcs.txt
vpx_config.c
vpx_config.h
vpx_rtcd.h
vpx_version.h