How to play a video from Byte array?

Question

I am working on an app which needs encryption of video files which is working quite well.But the method I am using to decrypt returns the video as in Byte array. So is there anyway that I can play the video using that array without creating a new file.

My method decryption:

  private static byte[] decrypt(byte[] raw, byte[] encrypted) throws EncrypterException {
SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES");
try {
    final Cipher cipher = Cipher.getInstance("AES");
    cipher.init(Cipher.DECRYPT_MODE, skeySpec);

    return cipher.doFinal(encrypted);

} catch (Exception e) {
    throw new EncrypterException(e);
}
}

Please help me I am stuck here ?

score 6 · Answer 1 · edited May 23 '17 at 10:30

After lots of search, this answer could be a sum up. All credits should go the solution owners.

Since VideoView only accept URL or File, we have two solution;

Solution 1; Create temp File with stream and provide that file to videoView.

Ref; https://stackoverflow.com/a/21549067/1847645

Solution 2; Create media server on Android Local System and provide stream to media server where videoView is directed to the localhost for streaming.

Ref; https://stackoverflow.com/a/9096241/1847645

Other Ref; Which is very useful, thanks to libeasy; https://stackoverflow.com/a/15668803/1847645

score -1 · Accepted Answer · answered Feb 29 '12 at 08:01

-1

How do you usually play video? You send InputStrem instance to player. So you ByteArrayInputStream that wraps your byte array and send it to the player.

answered Feb 29 '12 at 08:01

AlexR

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@Navdroid: A ByteArrayInputStream is an InputStream. – President James K. Polk Feb 29 '12 at 12:47
2

But I want to use it VideoView ..How can I use it without creating a new file – Navdroid Feb 29 '12 at 12:50
2

Did you get a solution for this? I'm also trying to play a video that I've loaded from a local DB, do I really have to save it to 'disk' to allow me to play it back? The VideoView control only allows you to set the Uri/File for playback. Maybe there's another way of playing videos without using the VideoView? – Rich S Sep 26 '12 at 10:59
6

how is this the answer to the question? – string.Empty Jun 28 '13 at 07:26
Did you find the solution? Navdroid – Rohit Sep 03 '14 at 06:18
This is not a solution! – Berkay Turancı Dec 21 '15 at 13:22
@Berkay, you are welcome to provide your own solution. – AlexR Dec 21 '15 at 21:23

score -2 · Answer 3 · answered Apr 02 '13 at 19:59

You should not feed VideoView with a static file but with a stream. How to produce this stream? Refer to Android Supported Media Formats. The simplest may be a local http server. LocalSingleHttpServer is an example of a library component implementing this kind of solution.

How to play a video from Byte array?

3 Answers3

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