在开始本文的正文之前,首先得安装好ffmpeg程序(Linux下还得安装x264编码)。Mac下直接用brew安装:
brew install ffmpeg --with-faac --with-fdk-aac --with-ffplay --with-fontconfig --with-freetype --with-libass --with-libbluray --with-libcaca --with-libsoxr --with-libquvi --with-frei0r --with-libvidstab --with-libvorbis --with-libvpx --with-opencore-amr --with-openjpeg --with-openssl --with-opus --with-rtmpdump --with-schroedinger --with-speex --with-theroa --with-tools --with-x265
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