首先将ffmpeg添加进系统环境变量
1.mp4转mkv
for %%a in ("*.mp4") do ffmpeg -i %%~na.mp4 -vcodec copy -acodec copy %%~na.mkv
2. mp4添加字幕并转换mkv (字幕格式为srt,名称与视频名称一致)
for %%a in ("*.mp4") do ffmpeg -i %%~na.mp4 -i %%~na.srt -vcodec copy -acodec copy %%~na.mkv
3.视频合并(mkv格式)
::Automatically generating the input file
(for %%i in ("*.mkv") do @echo file '%%i') > mylist.txt:: The -safe 0 is not required if the paths are relative.
ffmpeg -f concat -safe 0 -i mylist.txt -c copy output.mkv