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https://github.com/game-stop/veejay.git
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57 lines
1.5 KiB
Plaintext
57 lines
1.5 KiB
Plaintext
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ODROID XU4
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==========
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product: http://www.hardkernel.com/main/products/prdt_info.php
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distro : Ubuntu 12.04.5
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uname : Linux odroid02 3.10.82 #1 SMP PREEMPT Wed Sep 2 19:59:44 BRT 2015 armv7l armv7l armv7l GNU/Linux
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gcc : 4.6.3-1ubuntu5
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Prerequisites
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=============
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Ubuntu 12.04 comes with gcc 4.6, please update your gcc to version 4.7:
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$ sudo add-apt-repository ppa:ubuntu-toolchain-r/test
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$ sudo apt-get update
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$ sudo apt-get install gcc-4.7 g++-4.7
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$ sudo update-alternatives --remove gcc /usr/bin/gcc-4.6
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$ sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-4.7 60 --slave /usr/bin/g++ g++ /usr/bin/g++-4.7
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$ sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-4.6 40 --slave /usr/bin/g++ g++ /usr/bin/g++-4.6
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$ sudo update-alternatives --config gcc
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Remove libav:
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$ apt-get remove libavcodec53 libavformat53
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$ apt-get remove libswscale2
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$ apt-get remove libavutil51
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$ apt-get remove libavutil-dev libavcodec-dev libavformat-dev libswscale-dev
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Get a recent ffmpeg:
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ffmpeg-2.8.6
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Review your CFLAGS:
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$ echo $CFLAGS
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And change/set accordingly:
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$ export CFLAGS="-mfpu=neon -march=armv7 -ftree-vectorize -mvectorize-with-neon-quad -O3"
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Build ffmpeg:
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$ ./configure --enable-shared --enable-nonfree --enable-neon --prefix=/usr
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$ make -j8
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$ sudo make install
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Configuring veejay
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==================
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$ sh autogen.sh
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$ ./configure
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$ make -j8
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$ sudo make install
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When you run veejay, you can see if NEON optimizations are built-in:
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> I: Using SIMD NEON optimized memcpy()
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