IOS平台上使用FFmpeg解码H264的例子
https://github.com/lajos/iFrameExtractor
Xcode4.5 安装路径变了的缘故吧，修改了下build_armv6 build_armv7 build_i386 三个编译脚本
build_armv6
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#!/bin/tcsh -f if (! -d armv6) mkdir armv6 if (! -d lib) mkdir lib rm armv6/*.a make clean ./configure --disable-doc --disable-ffmpeg --disable-ffplay --disable-ffserver --enable-cross-compile --arch=arm --target-os=darwin --cc=/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc --as='gas-preprocessor/gas-preprocessor.pl /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc' --sysroot=/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS6.0.sdk --cpu=arm1176jzf-s --extra-cflags='-arch armv6' --extra-ldflags='-arch armv6 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS6.0.sdk' make -j4 mv libavcodec/libavcodec.a armv6/ mv libavdevice/libavdevice.a armv6/ mv libavformat/libavformat.a armv6/ mv libavutil/libavutil.a armv6/ mv libswscale/libswscale.a armv6/ rm lib/*.a cp armv6/*.a lib/ |
build_armv7
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#!/bin/tcsh -f if (! -d armv7) mkdir armv7 if (! -d lib) mkdir lib rm armv7/*.a make clean ./configure --disable-doc --disable-ffmpeg --disable-ffplay --disable-ffserver --enable-cross-compile --arch=arm --target-os=darwin --cc=/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc --as='gas-preprocessor/gas-preprocessor.pl /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc' --sysroot=/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS6.0.sdk --cpu=cortex-a8 --extra-cflags='-arch armv7' --extra-ldflags='-arch armv7 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS6.0.sdk' --enable-pic make -j4 mv libavcodec/libavcodec.a armv7/ mv libavdevice/libavdevice.a armv7/ mv libavformat/libavformat.a armv7/ mv libavutil/libavutil.a armv7/ mv libswscale/libswscale.a armv7/ rm lib/*.a cp armv7/*.a lib/ |
build_i386
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#!/bin/tcsh -f if (! -d i386) mkdir i386 if (! -d lib) mkdir lib rm i386/*.a make clean ./configure --disable-bzlib --disable-mmx --disable-doc --disable-ffmpeg --disable-ffplay --disable-ffserver --cc=/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc --as="gas-preprocessor/gas-preprocessor.pl /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc" --sysroot=/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator6.0.sdk --extra-ldflags="-arch i386 -L/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator6.0.sdk/usr/lib/system" --extra-cflags="-arch i386 -fmessage-length=0 -pipe -Wno-trigraphs -fpascal-strings -O0 -fasm-blocks -Wreturn-type -Wunused-variable -D__IPHONE_OS_VERSION_MIN_REQUIRED=40000 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator6.0.sdk -fvisibility=hidden -mmacosx-version-min=10.5 -gdwarf-2" make -j4 mv libavcodec/libavcodec.a i386/ mv libavdevice/libavdevice.a i386/ mv libavformat/libavformat.a i386/ mv libavutil/libavutil.a i386/ mv libswscale/libswscale.a i386/ rm lib/*.a cp i386/*.a lib/ |
没有真机，模拟器就使用i386编译出来的库。
用xcode打开项目，编译运行。
接下来 学习Objective-C，移植rtmpdump，能直接使用FFmpeg里的rtmp协议处理最好
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本文链接地址: 使用Xcode4.5 编译运行 iFrameExtractor