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kaito · 05-10-2013, 02:17 AM

I am trying to cross compile a newer mplayer and it is successful, but I can't figure out why it uses so much cpu (which drains the battery).

I am using these compile instructions:

http://gitorious.org/kindlebrew/mpla...aster/build.sh

export CFLAGS="-O4 -I$ALSAPREFIX/include/ -march=armv6j -mtune=arm1136jf-s -U_FORTIFY_SOURCE"

mplayer -v ...
Configuration: --enable-cross-compile --enable-armv6 --target=arm-linux --host-cc=gcc --cc=arm-none-linux-gnueabi-gcc --as=arm-none-linux-gnueabi-as --nm=arm-none-linux-gnueabi-nm --ranlib=arm-none-linux-gnueabi-ranlib --disable-mencoder --disable-libdvdcss-internal --disable-dvdread-internal --disable-tv --disable-tga --disable-dvb --disable-v4l2 --disable-yuv4mpeg --disable-directfb --disable-fbdev --disable-ossaudio --disable-vcd

But this one made by fbdev:
https://www.mobileread.com/forums/sho...d.php?t=147854

mplayer -v ...
Configuration: --prefix=/tmp/mp --disable-mencoder --disable-directfb --disable-fbdev --disable-ossaudio

uses 10% cpu, much less. I suppose it isn't cross compiled. How can I properly cross compile it to do the same? I've tried different -O values in the CFLAGS but that only makes the cpu use worse.

Is it alsa? Something else? I'm using k3 keyboard.

05-10-2013, 02:17 AM	#129
kaito Connoisseur Posts: 51 Karma: 76234 Join Date: May 2013 Device: k3w, gloHD	I am trying to cross compile a newer mplayer and it is successful, but I can't figure out why it uses so much cpu (which drains the battery). I am using these compile instructions: http://gitorious.org/kindlebrew/mpla...aster/build.sh export CFLAGS="-O4 -I$ALSAPREFIX/include/ -march=armv6j -mtune=arm1136jf-s -U_FORTIFY_SOURCE" mplayer -v ... Configuration: --enable-cross-compile --enable-armv6 --target=arm-linux --host-cc=gcc --cc=arm-none-linux-gnueabi-gcc --as=arm-none-linux-gnueabi-as --nm=arm-none-linux-gnueabi-nm --ranlib=arm-none-linux-gnueabi-ranlib --disable-mencoder --disable-libdvdcss-internal --disable-dvdread-internal --disable-tv --disable-tga --disable-dvb --disable-v4l2 --disable-yuv4mpeg --disable-directfb --disable-fbdev --disable-ossaudio --disable-vcd But this one made by fbdev: https://www.mobileread.com/forums/sho...d.php?t=147854 mplayer -v ... Configuration: --prefix=/tmp/mp --disable-mencoder --disable-directfb --disable-fbdev --disable-ossaudio uses 10% cpu, much less. I suppose it isn't cross compiled. How can I properly cross compile it to do the same? I've tried different -O values in the CFLAGS but that only makes the cpu use worse. Is it alsa? Something else? I'm using k3 keyboard. Last edited by kaito; 05-10-2013 at 02:49 AM.