FFMPEG encrypt & decrypt Video offline

[DARA ALAVI]

I want encrypt & decrypt Video file With FFMPEG oflfine mode in hard disk. I encrypt a Video File (mp4 Extention) by ffmpeg.exe Tools by this Command:

ffmpeg -i SampleVideo_1280x720_1mb.mp4 -vcodec copy -acodec copy
-encryption_scheme cenc-aes-ctr -encryption_key
76a6c65c5ea762046bd749a2e632ccbb -encryption_kid
a7e61c373e219033c21091fa607bf3b8 SampleVideo_1280x720_1mb_encrypted.mp4

for decryption : i want decrypt and play video file (encrypted.mp4) in my player source c++ (ffmpeg base) and *now i dont wnat use decrypt file with command line with ffplay.exe *like this :

ffplay SampleVideo_1280x720_1mb_encrypted.mp4 -decryption_key
76a6c65c5ea762046bd749a2e632ccbb

how i can do decrypt with Write programing code that use FFMPEG api? thanks in advance.

[Victor Nijegorodov]

DARA ALAVI wrote:

how i can do decrypt with Write programing code that use FFMPEG api?

Read/learn the FFMPEG api documentation.

[DARA ALAVI]

I searched a lot but did not find anything. There is no explanation on how to use it. :( I did not find a sample.. :(

[Victor Nijegorodov]

Then use the recommended way to decrypt with ffplay.exe

[DARA ALAVI]

I do not need ffplay.exe because i downloaded FFMPEG dev and i have written my own player program Which is based on FFMPEG! with QT & C++. I dont want use ffplay.exe that exist static FFMPEG Folder. . I want decrypt and play Encrypted File in my player program Through Programing code. Now how to decrypt encrypted files using FFMPeg API with C++ Programing? thanks.