linux ffmpeg Unknown encoder 'h264'
1、主要参考:https://quantum6.blog.csdn.net/article/details/82713833 LINUX下,ffmpeg增加NVIDIA硬件编解码的步骤及解决办法
2、ffmpeg下载连接参考:https://blog.csdn.net/a529975125/article/details/101780013 【ffmpeg】Ubuntu16.04重新编译ffmpeg来使用h264_nvenc编码
3、其他参考:https://blog.csdn.net/weixin_33127753/article/details/84637351 linux ffmpeg Unknown encoder 'h264'