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让qtwebkit使用gstreamer

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C/C++编程
Linux编程

2012-01-12 16:50
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花了一天事件， 终于编译出了支持gstreamer的qtwebkit, 可以开始html5 的<video><audio>之旅了。

1. 编译libxml2

下载libxml2-sources-2.7.6.tar.gz

解包后在当前目录下编写如下编译脚本：(当然，不用脚本也行，你可以直接执行)

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CC=arm-none-linux-gnueabi-gcc ./configure --build=i686-linux --host=arm-none-linux --prefix=/home/work/dist --without-python
make && make install

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CC=arm-none-linux-gnueabi-gcc  ./configure --build=i686-linux --host=arm-none-linux \
--prefix=/home/work/dist \
CFLAGS="-I/home/work/dist/include -L/home/work/dist/lib" \
glib_cv_stack_grows=no glib_cv_uscore=no ac_cv_func_posix_getpwuid_r=yes \
ac_cv_func_posix_getgrgid_r=yes ac_cv_lib_rt_clock_gettime=no glib_cv_monotonic_clock=yes
make && make install
CC=arm-none-linux-gnueabi-gcc  ./configure --build=i686-linux --host=arm-none-linux \<br />         --prefix=/home/work/dist \<br />         CFLAGS="-I/home/work/dist/include -L/home/work/dist/lib" \<br />         glib_cv_stack_grows=no glib_cv_uscore=no ac_cv_func_posix_getpwuid_r=yes \<br />         ac_cv_func_posix_getgrgid_r=yes ac_cv_lib_rt_clock_gettime=no glib_cv_monotonic_clock=yes<br /> make && make install

4. 编译gstreamer

下载gstreamer-0.10.35.tar.gz, 这个是0.10版本里面最新的了。

编译脚本：

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CC=arm-none-linux-gnueabi-gcc PKG_CONFIG_PATH=/home/work/dist/lib/pkgconfig ./configure --build=i686-linux --host=arm-none-linux \
--prefix=/home/work/dist CFLAGS=-I/home/work/dist/include --disable-registry --disable-loadsave --disable-gtk-doc \
ac_cv_func_register_printf_function=no --disable-tests --disable-valgrind --disable-debug --disable-gst-debug

make && make install

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CC=arm-none-linux-gnueabi-gcc PKG_CONFIG_PATH=/home/work/dist/lib/pkgconfig ./configure --build=i686-linux --host=arm-none-linux \
--prefix=/home/work/dist CFLAGS=-I/home/work/dist/include --disable-valgrind --disable-x --disable-gnome_vfs --disable-alsa  --disable-ogg --disable-pango --disable-theora --disable-vorbis --disable-examples

make && make install
CC=arm-none-linux-gnueabi-gcc PKG_CONFIG_PATH=/home/work/dist/lib/pkgconfig ./configure --build=i686-linux --host=arm-none-linux \<br />         --prefix=/home/work/dist CFLAGS=-I/home/work/dist/include --disable-valgrind --disable-x --disable-gnome_vfs --disable-alsa  --disable-ogg --disable-pango --disable-theora --disable-vorbis --disable-examples</p> <p>make && make install

好了， 万事具备， 只欠东风了。接下来开始编译Qt

Qt的配置文件很复杂， 我就不写出来了， 就是要注意这三点：

1. 在Qt 的configure 时加上-force-pkg-config, 否则会在WebCore的feature.pri中检查时报"Disabling video due the lack of GLib/Gio/GStreamer.",

也就是说会不支持video.

具体可以看这个pri片段：

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!contains(QT_CONFIG, no-pkg-config):system(pkg-config --exists glib-2.0 gio-2.0 gstreamer-0.10): {
DEFINES -= ENABLE_VIDEO=0
DEFINES += ENABLE_VIDEO=1
DEFINES += WTF_USE_GSTREAMER=1
DEFINES -= WTF_USE_GSTREAMER=0
} else {
message("Disabling video due the lack of GLib/Gio/GStreamer.")
DEFINES -= ENABLE_VIDEO=1
DEFINES += ENABLE_VIDEO=0
}
!contains(QT_CONFIG, no-pkg-config):system(pkg-config --exists glib-2.0 gio-2.0 gstreamer-0.10): {<br /> DEFINES -= ENABLE_VIDEO=0<br /> DEFINES += ENABLE_VIDEO=1<br /> DEFINES += WTF_USE_GSTREAMER=1<br /> DEFINES -= WTF_USE_GSTREAMER=0<br /> } else {<br /> message("Disabling video due the lack of GLib/Gio/GStreamer.")<br /> DEFINES -= ENABLE_VIDEO=1<br /> DEFINES += ENABLE_VIDEO=0<br /> }

如果不指定-force-pkg-config， 就会被当作no-pkg-config.

2. 为configure指定：PKG_CONFIG_PATH=/home/work/dist/lib/pkgconfig, 否则也会diabling video

3. 为了让webkit库能找到gstreamer等库， 还需要在webkit.pro中加上

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