How to read a avi file from Android Opencv?

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mw18888

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Sep 25, 2011, 11:01:32 PM9/25/11
to android-opencv
I like to open an video file during the test phase.

Can we modify the

package org.opencv.highgui;

public class VideoCapture {

and add

public VideoCapture(String fileName)
{
nativeObj = n_VideoCapture(fileName);

return;
}

Thank.

Kirill Kornyakov

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Sep 26, 2011, 4:04:58 AM9/26/11
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Sorry, but no. OpenCV doesn't support video capturing on Android. This feature will be implemented in next major release. During the test phase we split video into separate images (http://stackoverflow.com/questions/3917601/ffmpeg-split-avi-into-frames-with-known-frame-rate) and read them with imread.

-Kirill

mw18888

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Sep 26, 2011, 10:26:17 AM9/26/11
to android-opencv
Kirill,

Thank you for your comment.

Regards

On Sep 26, 4:04 am, Kirill Kornyakov <kirill.kornya...@itseez.com>
wrote:
> Sorry, but no. OpenCV doesn't support video capturing on Android. This
> feature will be implemented in next major release. During the test phase we
> split video into separate images (http://stackoverflow.com/questions/3917601/ffmpeg-split-avi-into-fram...)

Nathan of Guardian

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Sep 26, 2011, 10:34:48 AM9/26/11
to android-opencv
We have a build system for making ffmpeg binaries on Android that could be plugged into a Video->openCV workflow

https://github.com/guardianproject/android-ffmpeg

Kirill Kornyakov

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Jul 13, 2012, 3:09:41 AM7/13/12
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Hi!

No guarantees, but we are going to try to enable Video IO support for Android 3+ in 2.4.3 release, early September. In the meantime you can use default Android Java API.

On Thursday, July 12, 2012 3:08:54 PM UTC+4, Valeriy Lyuchin wrote:
Hi Kirill, do you know when this feature will be available?

Rui Marques

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Sep 9, 2012, 5:02:33 PM9/9/12
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Hi Nathan, i have tried to build your project but i have failed.
Make says some files are missing, for example:

Makefile:2: config.mak: No such file or directory
Makefile:47: /common.mak: No such file or directory
Makefile:88: /libavutil/Makefile: No such file or directory

Don't know what is wrong, I have followed your README instructions.
I am running ubuntu 12.04.

Any Help?

Andrey Pavlenko

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Dec 14, 2012, 2:36:17 AM12/14/12
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It's still not yet implemented.

brigit

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Dec 14, 2012, 12:48:19 PM12/14/12
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Is basic file I/O supported, e.g. to load a parameter file or classifier?

thanks, 
brigit

On Fri, Dec 14, 2012 at 2:36 AM, Andrey Pavlenko <andrey....@itseez.com> wrote:
It's still not yet implemented.

--
 
 
 

Andrey Pavlenko

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Dec 17, 2012, 7:08:58 AM12/17/12
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Sure,
e.g. you can load a cascade classifier with a code like this:
new CascadeClassifier(mCascadeFile.getAbsolutePath());

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