FFmpeg learning (0) - use ffmpeg video slice and encryption

Wish to achieve:

Mp4 a video file into a plurality of cutting segments ts, using AES-128 encryption for each segment in the cutting process, and finally generate a video index file of m3u8;

If you want to encrypt, ready to look at two things first:

Encryption key used

openssl rand  16 > enc.key （ 生成一个enc.key文件  ）

Another is iv

openssl rand -hex 16  （ 生成一段字符串，记下来）

Create a new file enc.keyinfo content format is as follows:

Key URI  # enc.key的路径，使用http形式

Path to key file  # enc.key文件

IV  #  上面生成的iv

A few examples:

http://localhost/video/enc.key
enc.key
48c674428c1e719751565ad00fe24243

Finally, the focus here

ffmpeg -y \

-i test.mp4 \

-hls_time 12 \       # 将test.mp4分割成每个小段多少秒

-hls_key_info_file enc.keyinfo \

-hls_playlist_type vod \   # vod 是点播，表示PlayList不会变
-hls_segment_filename "file%d.ts" \  #  每个小段的文件名

playlist.m3u8   #  生成的m3u8文件

M3u8 generated files can be played directly by most players