Answers for "how to grant permission to read external storage kotlin android"

crop video from specific time to specific time ffmpeg

ffmpeg -ss 00:01:00 -i input.mp4 -to 00:02:00 -c copy output.mp4
# Triming in ffmpeg

write storage permission android

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

read storage permission android

<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>