方法一：
新建file.txt文档
file ‘F:\Release\StreamMediaServer\html\hd\34020000001310000701\34020000001310000701_live-16.ts‘ file ‘F:\Release\StreamMediaServer\html\hd\34020000001310000701\34020000001310000701_live-17.ts‘ file ‘F:\Release\StreamMediaServer\html\hd\34020000001310000701\34020000001310000701_live-18.ts‘ file ‘F:\Release\StreamMediaServer\html\hd\34020000001310000701\34020000001310000701_live-19.ts‘ file ‘F:\Release\StreamMediaServer\html\hd\34020000001310000701\34020000001310000701_live-20.ts‘ file ‘F:\Release\StreamMediaServer\html\hd\34020000001310000701\34020000001310000701_live-21.ts‘ file ‘F:\Release\StreamMediaServer\html\hd\34020000001310000701\34020000001310000701_live-22.ts‘ file ‘F:\Release\StreamMediaServer\html\hd\34020000001310000701\34020000001310000701_live-23.ts‘ file ‘F:\Release\StreamMediaServer\html\hd\34020000001310000701\34020000001310000701_live-24.ts‘ file ‘F:\Release\StreamMediaServer\html\hd\34020000001310000701\34020000001310000701_live-25.ts‘
执行ffmpeg命令
# -safe 0: 防止Operation not permitted ffmpeg.exe -f concat -safe 0 -i file.txt -c copy out.mp4
方法二：
直接写ffmpeg命令，通过“|”来分隔文件名
ffmpeg -i "concat:34020000001310000701_live-16.ts|34020000001310000701_live-17.ts|" -c copy output.mp4
参考链接：https://blog.csdn.net/jiuaiwo1314/article/details/106100781
原文：https://www.cnblogs.com/nihaorz/p/14701637.html