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Fast Encrypt h264 file, the encrypted file change to mpeg-2 file and large size

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Aug 23, 2015
Archive Agent wrote
I just try to use Fast Encrypt, but when I'm try Fast Encrypt 1 h264 file(size is 87MB), the result is : the encrypted file change to mpeg-2 and the size change to 174MB.
Is that it normal?

qakmak on August 23, 2013 6:11 PM
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9 Answers
Aug 23, 2015
Archive Agent agent wrote
qakmak

there is h264 file, if you want to test.
https://www.dropbox.com/s/7sa9zd95vxxlae7/test2.rar

on August 23, 2013 19:03
Aug 23, 2015
Archive Agent agent wrote
Vaclav

H264 compresion is more efficient then mpeg-2, so larger mpeg-2 file is normal.

on August 24, 2013 18:23
Aug 23, 2015
Archive Agent agent wrote
qakmak

I know. but I mean Fast Encrypt API can't convert the media file type. It should be encrypted only.
So I think if I'm Fast Encrypt h264 file, the encrypted file must be h264 too. not mpeg-2. and the size can't change to very big. right?

on August 24, 2013 18:36
Aug 23, 2015
Archive Agent agent wrote
Roman Minyaylov

Source file must be in MP4 format with H264 video and AAC audio. Your file is AVI with H264 video and MP3 audio. Result can be unexpected.

on August 25, 2013 18:42
Aug 23, 2015
Archive Agent agent wrote
Roman Minyaylov

Also please show me output file.

on August 25, 2013 18:42
Aug 23, 2015
Archive Agent agent wrote
qakmak

Oh, I see....
There is the output file, if open with KMPLAYER, it will display, the output file is mpeg-2 format.
password is :100

https://www.dropbox.com/s/1gsv9g0urhaeu6s/output.avi

on August 25, 2013 19:25
Aug 23, 2015
Archive Agent agent wrote
Roman Minyaylov

Real file info:

Video: MPEG4 Video (H264) 720x480 24.995fps [Video 1]
Audio: PCM 48000Hz stereo 1536kbps [Audio 2]
Audio: PCM 48000Hz stereo 1536kbps [Audio 3]

So, file is bigger because it goes PCM (Uncompressed audio) instead MP3 or AAC (That sipported).

For a some reasons KMPlayer do not provide correct information.

You are can build graph in GraphEdit tool manually or using MPC-HC player.

on August 25, 2013 19:35
Aug 23, 2015
Archive Agent agent wrote
qakmak

Ok. Thanks for your helping.

on August 25, 2013 19:39
Aug 23, 2015
Archive Agent agent wrote
qakmak

close this topic please. thanks.

on August 30, 2013 20:48