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直播 (十一) : iOS下利用FFmpeg命令行进行视频裁剪 - 宋明的博客
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<h1 class="title">
直播 (十一) : iOS下利用FFmpeg命令行进行视频裁剪
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<a href="http://apolla.cc">宋明</a>
<span style="color: #ccc;">|</span>
<span class="date"><i class="fa fa-calendar-check-o" aria-hidden="true"></i> 2023/03/18</span>
<span class="tran-posted-in">posted in</span>
<span class="posted-in"><a href='%E7%9B%B4%E6%92%AD.html'><i class="fa fa-folder" aria-hidden="true"></i> 直播</a></span>
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<p>安装<a href="http://linux.softpedia.com/get/Programming/Assembler-Tools/Yasm-621.shtml">yasm</a><br />
• 进入下载后的yasm文件夹，通过编译安装命令yasm:<br />
./configure && make -j 4 && sudo make install</p>
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<p><a href="https://github.com/applexiaohao/gas-preprocessor.git">gas-preprocessor</a></p>
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<p>• 打开终端Terminal，进入下载后的gas-preprocessor文件夹:<br />
1.将文件夹内的gas-preprocessor.pl文件拷贝到/usr/local/bin目录下<br />
2.chmod 777 /usr/local/bin/gas-preprocessor.pl</p>
<ol start="3">
<li>
<p><a href="https://github.com/applexiaohao/FFmpeg-iOS-build-script">FFmpeg-iOS-build-script</a><br />
进入FFmpeg-iOS-build-script-master文件夹，执行./build-ffmpeg.sh<br />
• 如果只需要编译真机的静态库<br />
执行./build-ffmpeg.sh arm64<br />
• 最后合并真机和模拟器静态库 （可选）<br />
执行./build-ffmpeg.sh lipo</p>
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<p>使用编译完成的FFmpeg静态库<br />
• 编译成功后，即可将FFmpeg-iOS文件夹(包含include和lib)引入到Xcode内<br />
• 加入依赖库libz.lib、libbz2.lib、libiconv.lib<br />
• 导入 AVFoundation.framework、VideoToolbox.framework<br />
• 修改 Build Setting中Header Search Paths = $(SRCROOT)/FFmpeg-iOS/include<br />
• 导入几个所需文件如图（其中有些文件做了些修改，最好从demo中提取）<br />
<img src="media/16791192499898/16791196610692.png" alt="image.png" /></p>
</li>
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<p><strong>点击下载</strong><a href="https://github.com/fanmaoyu0871/VideoCutterDemo.git">demo</a><br />
• 修改liavutil中的time.h为ffmpegtime.h<br />
• 编译所有的版本arm64(5s later)、armv7(5s before)、x86_64(64bit simulator）的静态库</p>
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