I wanted to present you a very unusual program, from which created I have a problem.

This is my HLS playlist (.m3u8)

#EXT-X-KEY:METHOD=AES-128,URI="01.key",IV=0x00000000000000000000015FA0E49B00 #EXTINF:9.480, 01.ts 

According to this information, I create variables in PHP

$  segment = file_get_contents("01.ts"); $  key_method = "AES-128-CBC"; // ?? $  key_value = file_get_contents("01.key"); $  key_iv = "0x00000000000000000000015FA0E49B00"; // ?? 

And then I would like this file to decrypt, for example:

$  decrypt = openssl_decrypt($  segment, $  key_method, $  key_value, $  key_iv); 

And display:

header('Content-Type: application/octet-stream'); header('Content-Disposition: attachment; filename="01_decrypt.ts"'); echo $  decrypt; 

Unfortunately, the program written for some segments works, for some it does not work

Attachments:

http://www49.zippyshare.com/v/YPvFtTW6/file.html

In Attachment:

• 01.m3u8 playlist with 01.ts segment and 01.key key works fine in VLC, after decryption by my program returns zero
• 02.m3u8 playlist with 02.ts and 02.key key works fine in VLC, after decryption through my program returns the correct strlen() value, but I can not play that file already in VLC, but works in Media Player Classic

I do not understand why? Please help