[FFmpeg-user] No such file or directory in Android ffmpeg cli

[fernando guerrero]

Hi, this is my first try in ffmpeg, and I'm trying in Android ffmpeg cli
app.

I want to embed subtitles in srt to an mp4 movie and return "no such
directory or file"
They are both in the same folder.
 What I'm using is

ffmpeg -i /internal storage/Download/blackkk.mp4 -f srt -i /internal
storage/Download/blackkk.srt -c:v copy -c:a copy -c:s mov_text /internal
storage/Download/blackkksub.mp4

I want to know what I'm doing wrong

Thanks