我的测试环境 Xcode 4.6 iPod Touch 4
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Touch-future:~ root# uname -a Darwin Touch-future 11.0.0 Darwin Kernel Version 11.0.0: Sun Apr 8 21:51:26 PDT 2012; root:xnu-1878.11.10~1/RELEASE_ARM_S5L8930X iPod4,1 arm N81AP Darwin |
设置环境变量
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export CC=/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc export AS='gas-preprocessor.pl /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc' export CFLAGS='-arch armv7' export LDFLAGS='-L/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS6.1.sdk/usr/lib/system/ -arch armv7' |
配置
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./configure --sysroot=/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS6.1.sdk/ --host=arm-apple-darwin --enable-static --enable-strip --disable-avs --chroma-format=420 --enable-pic --disable-opencl |
编译
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make -j4 |
签名应用程序
http://danqingdani.blog.163.com/blog/static/186094195201332210447261/
执行结果，与Android版的x264测试使用相同的文件和配置
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Touch-future:~ root# ./x264 -o test.264 akiyo_qcif.y4m y4m [info]: 176x144p 128:117 @ 30000/1001 fps (cfr) x264 [info]: using SAR=128/117 x264 [info]: using cpu capabilities: ARMv6 NEON x264 [info]: profile High, level 1.1 x264 [info]: frame I:2 Avg QP:19.56 size: 4765 x264 [info]: frame P:102 Avg QP:23.74 size: 284 x264 [info]: frame B:196 Avg QP:30.46 size: 30 x264 [info]: consecutive B-frames: 12.7% 0.0% 2.0% 85.3% x264 [info]: mb I I16..4: 1.5% 36.4% 62.1% x264 [info]: mb P I16..4: 0.0% 0.0% 0.0% P16..4: 11.4% 8.8% 7.7% 0.0% 0.0% skip:72.0% x264 [info]: mb B I16..4: 0.0% 0.0% 0.0% B16..8: 8.2% 1.1% 0.3% direct: 0.3% skip:90.1% L0:28.6% L1:63.1% BI: 8.3% x264 [info]: 8x8 transform intra:36.4% inter:35.5% x264 [info]: coded y,uvDC,uvAC intra: 91.0% 89.9% 79.3% inter: 3.9% 2.0% 0.7% x264 [info]: i16 v,h,dc,p: 100% 0% 0% 0% x264 [info]: i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 27% 30% 15% 3% 3% 8% 3% 4% 7% x264 [info]: i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 31% 21% 8% 6% 5% 8% 6% 9% 6% x264 [info]: i8c dc,h,v,p: 39% 23% 29% 9% x264 [info]: Weighted P-Frames: Y:0.0% UV:0.0% x264 [info]: ref P L0: 73.4% 13.7% 8.5% 4.3% x264 [info]: ref B L0: 91.5% 6.6% 1.8% x264 [info]: ref B L1: 95.6% 4.4% x264 [info]: kb/s:35.48 encoded 300 frames, 69.14 fps, 35.48 kb/s |
X264性能调优,请看Android,IOS平台上x264编码实时视频参数设置与优化
原创文章，转载请注明： 转载自贝壳博客
本文链接地址: 开启neon编译iOS版X264