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ffmpeg-xcode's Introduction

ffmpeg-xcode

ffmpeg xcode project

build steps

step 1 编译 ffmpeg

  • tar xvf ffmpeg-3.0.2.tar.bz2
  • cd ffmpeg-3.0.2
  • ./configure --enable-debug
  • make -j8

step 2 新建一个空的 xcode 项目

  • Create a new Xcode project
  • 新建一个空的 xcode 项目 step2-1 step2-2
  • 项目保存路径与ffmpeg-3.0.2同级. step2-3

step 3 添加 ffmpeg-3.0.2 源码目录进 ffmpeg-xcode 项目中

  • 拖进去 step3-1
  • 不要勾选下面这个选项 step3-2
  • 接着一点要选 ffmpeg-xcode, 否则看代码时, 不可以跳转. 写代码时不会有提示. step3-3

step 4 添加头文件搜索路径

  • 到这里就可以实现头文件跳转了. 要等待处理完毕才可以点击头文件或者类来查看代码. step4

step 5 添加一个 target

  • File -> New -> Target -> OS X -> Other -> External Build System step5-1
  • target 命名为 ffmpeg-make step5-2
  • target 切换到 ffmpeg-make step5-3

step 6 修改 ffmpeg-make 源码路径配置

  • 修改 ffmpeg-make 源码路径 step6

step 7 修改 ffmpeg-make 命令行参数

  • 修改命令行参数 step7-1
  • 修改可执行命令 step7-2

step 8 添加断点(ffplay.c->main函数), 点击 run

step8

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ffmpeg-xcode's Issues

从git clone到成功debug

自问自答:
1 问: git clone下来后, 使用XCode10打开报错, 报:

Multiple commands produce '/Users/along/Library/Developer/Xcode/DerivedData/ffmpeg-xcode-aunxzpbljtgyyoevgrbrwbpekawz/Build/Intermediates.noindex/ffmpeg-xcode.build/Debug/ffmpeg-xcode.build/DerivedSources/idctdsp.h':
1) Target 'ffmpeg-xcode' (project 'ffmpeg-xcode'): CompileDTraceScript /Users/along/workplace/github/video_players/ffmpeg-xcode/ffmpeg-3.0.2/libavcodec/idctdsp.d
2) Target 'ffmpeg-xcode' (project 'ffmpeg-xcode'): CompileDTraceScript /Users/along/workplace/github/video_players/ffmpeg-xcode/ffmpeg-3.0.2/libavcodec/x86/idctdsp.d

File->Project Setting->Build System改成Legacy Build System.
2. 改好后, 报:

resample_dsp.d里syntax error near `:`

没有找到原因, 就在同目录新建了ffmpeg-xcode1, 按照Readme.md的设置来, 可以运行.
3. 运行后直接终止执行, 看原因是少了libSDL, 所以brew install sdl, 可以正常运行.
4. 加断点没有触发到, 重新编译了下ffmpeg, 使用

./configure --enable-debug=3 --disable-stripping
make -j8

成功断到.

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