FFmpeg开发笔记（七十）Windows给FFmpeg集成AV1编码器libsvtav1
<span data-cke-copybin-start="1"><span data-cke-copybin-start="1"></span></span><span id="cke_bm_997S">AV1是一种新兴的免费视频编码标准，它由开放媒体联盟（Alliance for Open Media，简称AOM）于2018年制定，融合了Google VP10、Mozilla Daala以及Cisco Thor三款开源项目的成果。据说在实际测试中，AV1标准比H.265（HEVC）的压缩率提升了大约27%。由于AV1具有性能优势，并且还是免费授权，因此各大流媒体平台更倾向使用AV1而非HEVC标准。</span><p><span id="cke_bm_997S"> AV1如此炙手可热，以致它的编解码器如雨后春笋，单单FFmpeg支持的AV1编解码器，就有libaom、libdav1d、libsvtav1、librav1e四种。接下来以微软的视窗系统为例，介绍如何在Windows环境给FFmpeg集成AV1编码器libsvtav1，具体的操作步骤说明如下：</span></p>
<h1>一、配置libsvtav1</h1>
<p>SVT-AV1项目最初由英特尔与奈飞公司合作创建，后来被AOM官方收编，它的源码托管页面在https://gitlab.com/AOMediaCodec/SVT-AV1。虽然最新版为2025年3月推出的SVT-AV1-v3.0.2，但实际验证在Windows10上配置失败，所以要用2024年10月推出的SVT-AV1-v2.3.0，下载地址是https://gitlab.com/AOMediaCodec/SVT-AV1/-/archive/v2.3.0/SVT-AV1-v2.3.0.tar.gz。<br>
先下载最新的svt-av1源码，再把svt-av1源码包复制到MSYS环境的/usr/local/src目录下。接着在MSYS控制台执行下面命令解压源码包：</p>
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<pre class="cke_widget_element" data-cke-widget-data="%7B%22code%22%3A%22tar%20zxvf%20SVT-AV1-v2.3.0.orig.tar.gz%5Cncd%20SVT-AV1-v2.3.0%22%2C%22classes%22%3Anull%7D" data-cke-widget-keep-attr="0" data-cke-widget-upcasted="1" data-widget="codeSnippet"><code class="hljs">tar zxvf SVT-AV1-v2.3.0.orig.tar.gz
cd SVT-AV1-v2.3.0</code></pre>
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<p>然后执行下面命令配置svt-av1：</p>
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<pre class="cke_widget_element" data-cke-widget-data="%7B%22code%22%3A%22cd%20Build%5Cncmake%20-DBUILD_SHARED_LIBS%3D1%20..%22%2C%22classes%22%3Anull%7D" data-cke-widget-keep-attr="0" data-cke-widget-upcasted="1" data-widget="codeSnippet"><code class="hljs">cd Build
cmake -DBUILD_SHARED_LIBS=1 ..</code></pre>
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<p>配置完毕，会在Build目录下找到svt-av1.sln，这就是svt-av1的Visual Studio项目工程文件。</p>
<h1>二、编译libsvtav1</h1>
<p>打开Visual Studio 2022，在欢迎页面单击右侧的“打开项目或解决方案”，在弹出的文件对话框中选择SVT-AV1-v2.3.0\Build目录下的svt-av1.sln。<br>
打开svt-av1工程后，依次选择顶部菜单：生成→配置管理器，在打开的配置管理器窗口上，找到左上角的“活动解决方案配置”下拉框，把Debug模式改为Release模式，再单击窗口右下角的关闭按钮。<br>
依次选择顶部菜单：生成→Build ALL_BUILD，Visual Studio就开始编译svt-av1模块。编译过程可在Visual Studio界面下方观察，直到编译完成如下图所示。</p>
<p><span class="cke_widget_wrapper cke_widget_inline cke_widget_image cke_image_nocaption cke_widget_selected" data-cke-display-name="图像" data-cke-filter="off" data-cke-widget-id="9" data-cke-widget-wrapper="1"><span class="cke_reset cke_widget_drag_handler_container"><span class="cke_image_resizer" title="点击并拖拽以改变尺寸"><span class="cke_widget_edit_container" title="编辑图片"><img src="https://img2024.cnblogs.com/blog/729938/202506/729938-20250628125502109-682086720.png"></span></span></span></span></p>
<p>此时可在SVT-AV1-v2.3.0\Bin\Release目录下找到SvtAv1Enc.lib和SvtAv1Enc.dll，这两个文件就是编译生成的libsvtav1库文件。</p>
<h1>三、安装libsvtav1</h1>
<p>确保Windows系统已经按照《FFmpeg开发实战：从零基础到短视频上线》第一章“1.3 Windows系统安装FFmpeg”的说明安装配置了MSYS，再按照以下步骤在MSYS环境安装libsvtav1。<br>
1、在msys64的/usr/local目录下新建libsvtav1目录，并在该目录下创建lib子目录；<br>
2、把svt-av1工程中Bin\Release目录下的SvtAv1Enc.lib和SvtAv1Enc.dll两个文件复制到第一步创建的lib目录；<br>
3、在lib目录下创建pkgconfig子目录，并把svt-av1工程的Build\SvtAv1Enc.pc复制到pkgconfig目录；然后打开SvtAv1Enc.pc，把开头一行改成下面这样。</p>
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<pre class="cke_widget_element" data-cke-widget-data="%7B%22code%22%3A%22prefix%3D%2Fusr%2Flocal%2Flibsvtav1%22%2C%22classes%22%3Anull%7D" data-cke-widget-keep-attr="0" data-cke-widget-upcasted="1" data-widget="codeSnippet"><code class="hljs">prefix=/usr/local/libsvtav1</code></pre>
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<p>4、在msys64的/usr/local/libsvtav1目录下创建include目录，再在include下创建子目录svt-av1，然后把svt-av1工程中Source\API目录下的几个h文件都复制到刚才创建的include/svt-av1目录；<br>
经过以上步骤操作后的libsvtav1目录结构如下所示。</p>
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<pre class="cke_widget_element" data-cke-widget-data="%7B%22code%22%3A%22%2Fusr%2Flocal%2Flibsvtav1%5Cn%C2%A0%7C---------------%20lib%5Cn%C2%A0%7C%20%C2%A0%20%C2%A0%20%C2%A0%20%C2%A0%20%C2%A0%20%C2%A0%20%C2%A0%20%C2%A0%20%7C-----%20SvtAv1Enc.lib%5Cn%C2%A0%7C%20%C2%A0%20%C2%A0%20%C2%A0%20%C2%A0%20%C2%A0%20%C2%A0%20%C2%A0%20%C2%A0%20%7C-----%20SvtAv1Enc.dll%5Cn%C2%A0%7C%20%C2%A0%20%C2%A0%20%C2%A0%20%C2%A0%20%C2%A0%20%C2%A0%20%C2%A0%20%C2%A0%20%7C-----%20pkgconfig%5Cn%C2%A0%7C%20%C2%A0%20%C2%A0%20%C2%A0%20%C2%A0%20%C2%A0%20%C2%A0%20%C2%A0%20%C2%A0%20%C2%A0%20%C2%A0%20%C2%A0%20%C2%A0%20%C2%A0%20%7C-----%20SvtAv1Enc.pc%5Cn%C2%A0%7C---------------%20include%5Cn%C2%A0%7C%20%C2%A0%20%C2%A0%20%C2%A0%20%C2%A0%20%C2%A0%20%C2%A0%20%C2%A0%20%C2%A0%20%7C-----%20svt-av1%5Cn%C2%A0%7C%20%C2%A0%20%C2%A0%20%C2%A0%20%C2%A0%20%C2%A0%20%C2%A0%20%C2%A0%20%C2%A0%20%C2%A0%20%C2%A0%20%C2%A0%20%C2%A0%20%C2%A0%20%7C-----%20EbSvtAv1.h%5Cn%C2%A0%7C%20%C2%A0%20%C2%A0%20%C2%A0%20%C2%A0%20%C2%A0%20%C2%A0%20%C2%A0%20%C2%A0%20%C2%A0%20%C2%A0%20%C2%A0%20%C2%A0%20%C2%A0%20%7C-----%20EbSvtAv1Enc.h%5Cn%C2%A0%7C%20%C2%A0%20%C2%A0%20%C2%A0%20%C2%A0%20%C2%A0%20%C2%A0%20%C2%A0%20%C2%A0%20%C2%A0%20%C2%A0%20%C2%A0%20%C2%A0%20%C2%A0%20%7C-----%20%E2%80%A6%E2%80%A6%22%2C%22classes%22%3Anull%7D" data-cke-widget-keep-attr="0" data-cke-widget-upcasted="1" data-widget="codeSnippet"><code class="hljs">/usr/local/libsvtav1
|--------------- lib
| |----- SvtAv1Enc.lib
| |----- SvtAv1Enc.dll
| |----- pkgconfig
| |----- SvtAv1Enc.pc
|--------------- include
| |----- svt-av1
| |----- EbSvtAv1.h
| |----- EbSvtAv1Enc.h
| |----- ……</code></pre>
</div>
<h1>四、编译安装FFmpeg</h1>
<p>先下载最新的FFmpeg源码（版本号需大于等于7.1），再把FFmpeg源码包复制到MSYS环境的/usr/local/src目录下。接着在MSYS控制台执行下面命令解压源码包：</p>
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<pre class="cke_widget_element" data-cke-widget-data="%7B%22code%22%3A%22cd%20%2Fusr%2Flocal%2Fsrc%5Cnunzip%20ffmpeg-n7.1.1.zip%22%2C%22classes%22%3Anull%7D" data-cke-widget-keep-attr="0" data-cke-widget-upcasted="1" data-widget="codeSnippet"><code class="hljs">cd /usr/local/src
unzip ffmpeg-n7.1.1.zip</code></pre>
</div>
<p>确保MSYS环境已经按照《FFmpeg开发实战：从零基础到短视频上线》该书第八章的“8.1.1 给FFmpeg集成x264”和“8.1.5 给FFmpeg集成x265”安装了H.264的编码器libx264和H.265的编码器libx265，也按照该书第十章的“10.1.1 FFmpeg集成SDL”安装了Windows系统的SDL2库，并且按照之前的文章安装了H.266的编码器libvvenc，然后执行下面命令配置FFmpeg的编译环境：</p>
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<pre class="cke_widget_element" data-cke-widget-data="%7B%22code%22%3A%22cd%20ffmpeg-n7.1.1%5Cnexport%20PKG_CONFIG_PATH%3D%2Fusr%2Flocal%2Flibsvtav1%2Flib%2Fpkgconfig%3A%24PKG_CONFIG_PATH%5Cn.%2Fconfigure%20--prefix%3D%2Fusr%2Flocal%2Fffmpeg%20--arch%3Dx86_64%20--enable-shared%20--disable-static%20--disable-doc%20--enable-libx264%20--enable-libx265%20--enable-libvvenc%20--enable-liblc3%20--enable-librist%20--enable-libdav1d%20--enable-libaom%20--enable-libsvtav1%20--enable-sdl2%20--enable-gpl%20--enable-nonfree%20--enable-iconv%20--enable-zlib%20--cross-prefix%3Dx86_64-w64-mingw32-%20--target-os%3Dmingw32%22%2C%22classes%22%3Anull%7D" data-cke-widget-keep-attr="0" data-cke-widget-upcasted="1" data-widget="codeSnippet"><code class="hljs">cd ffmpeg-n7.1.1
export PKG_CONFIG_PATH=/usr/local/libsvtav1/lib/pkgconfig:$PKG_CONFIG_PATH
./configure --prefix=/usr/local/ffmpeg --arch=x86_64 --enable-shared --disable-static --disable-doc --enable-libx264 --enable-libx265 --enable-libvvenc --enable-liblc3 --enable-librist --enable-libdav1d --enable-libaom --enable-libsvtav1 --enable-sdl2 --enable-gpl --enable-nonfree --enable-iconv --enable-zlib --cross-prefix=x86_64-w64-mingw32- --target-os=mingw32</code></pre>
</div>
<p>配置完毕执行下面命令编译和安装FFmpeg，编译完成的ffmpeg库将会安装到configure指定的/usr/local/ffmpeg目录。</p>
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<pre class="cke_widget_element" data-cke-widget-data="%7B%22code%22%3A%22make%5Cnmake%20install%5Cncp%20%2Fusr%2Flocal%2Flibsvtav1%2Flib%2FSvtAv1Enc.dll%20%2Fusr%2Flocal%2Fffmpeg%2Fbin%22%2C%22classes%22%3Anull%7D" data-cke-widget-keep-attr="0" data-cke-widget-upcasted="1" data-widget="codeSnippet"><code class="hljs">make
make install
cp /usr/local/libsvtav1/lib/SvtAv1Enc.dll /usr/local/ffmpeg/bin</code></pre>
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<h1>五、查看FFmpeg的安装结果</h1>
<p>运行下面命令查看FFmpeg的安装版本：</p>
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<pre class="cke_widget_element" data-cke-widget-data="%7B%22code%22%3A%22ffmpeg%20-version%22%2C%22classes%22%3Anull%7D" data-cke-widget-keep-attr="0" data-cke-widget-upcasted="1" data-widget="codeSnippet"><code class="hljs">ffmpeg -version</code></pre>
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<p>上面命令返回的FFmpeg版本信息如下：</p>
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<pre class="cke_widget_element" data-cke-widget-data="%7B%22code%22%3A%22ffmpeg%20version%207.1.1%20Copyright%20(c)%202000-2025%20the%20FFmpeg%20developers%5Cnbuilt%20with%20gcc%2012.2.0%20(Rev10%2C%20Built%20by%20MSYS2%20project)%5Cnconfiguration%3A%20--prefix%3D%2Fusr%2Flocal%2Fffmpeg%20--arch%3Dx86_64%20--enable-shared%20--disable-static%20--disable-doc%20--enable-libx264%20--enable-libx265%20--enable-libvvenc%20--enable-liblc3%20--enable-librist%20--enable-libdav1d%20--enable-libaom%20--enable-libsvtav1%20--enable-sdl2%20--enable-gpl%20--enable-nonfree%20--enable-iconv%20--enable-zlib%20--cross-prefix%3Dx86_64-w64-mingw32-%20--target-os%3Dmingw32%5Cnlibavutil%20%C2%A0%20%C2%A0%20%C2%A059.%2039.100%20%2F%2059.%2039.100%5Cnlibavcodec%20%C2%A0%20%C2%A0%2061.%2019.101%20%2F%2061.%2019.101%5Cnlibavformat%20%C2%A0%20%C2%A061.%20%C2%A07.100%20%2F%2061.%20%C2%A07.100%5Cnlibavdevice%20%C2%A0%20%C2%A061.%20%C2%A03.100%20%2F%2061.%20%C2%A03.100%5Cnlibavfilter%20%C2%A0%20%C2%A010.%20%C2%A04.100%20%2F%2010.%20%C2%A04.100%5Cnlibswscale%20%C2%A0%20%C2%A0%20%C2%A08.%20%C2%A03.100%20%2F%20%C2%A08.%20%C2%A03.100%5Cnlibswresample%20%C2%A0%205.%20%C2%A03.100%20%2F%20%C2%A05.%20%C2%A03.100%5Cnlibpostproc%20%C2%A0%20%C2%A058.%20%C2%A03.100%20%2F%2058.%20%C2%A03.100%22%2C%22classes%22%3Anull%7D" data-cke-widget-keep-attr="0" data-cke-widget-upcasted="1" data-widget="codeSnippet"><code class="hljs">ffmpeg version 7.1.1 Copyright (c) 2000-2025 the FFmpeg developers
built with gcc 12.2.0 (Rev10, Built by MSYS2 project)
configuration: --prefix=/usr/local/ffmpeg --arch=x86_64 --enable-shared --disable-static --disable-doc --enable-libx264 --enable-libx265 --enable-libvvenc --enable-liblc3 --enable-librist --enable-libdav1d --enable-libaom --enable-libsvtav1 --enable-sdl2 --enable-gpl --enable-nonfree --enable-iconv --enable-zlib --cross-prefix=x86_64-w64-mingw32- --target-os=mingw32
libavutil 59. 39.100 / 59. 39.100
libavcodec 61. 19.101 / 61. 19.101
libavformat 61. 7.100 / 61. 7.100
libavdevice 61. 3.100 / 61. 3.100
libavfilter 10. 4.100 / 10. 4.100
libswscale 8. 3.100 / 8. 3.100
libswresample 5. 3.100 / 5. 3.100
libpostproc 58. 3.100 / 58. 3.100</code></pre>
</div>
<p>根据以上返回的版本信息，可知已安装的FFmpeg版本号为7.1.1，同时configuration这行找到“--enable-libsvtav1”，说明FFmpeg已经启用了AV1编码器libsvtav1。</p>
<p>更多详细的FFmpeg开发知识参见<span class="cke_widget_wrapper cke_widget_inline cke_widget_csdnlink cke_widget_selected" data-cke-display-name="a" data-cke-filter="off" data-cke-widget-id="1" data-cke-widget-wrapper="1">《FFmpeg开发实战：从零基础到短视频上线》一书。</span></p><br><br>
来源：https://www.cnblogs.com/aqi00/p/18953491
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