The VideoLAN Forums

Hello!

How to get the data pointer on the decoded image (unsigned char* or char* or whatever)?
Is there any callback where I can get the pointer on the data each time a new image is decoded?

Thanks,
KiD

N.B.: I'm on Ubuntu 11.4. I have installed libvlc-dev 1.1.9 from synaptic (ubuntu ppa)

That is what video filters VLC plugins are for. Well, that and optionally but typically modifying the image.

Well...
Could you give me a link to some doc? (How to implement a plugin for example? or Some sample code...)

Just to be more specific about my question.
I'm using libvlc to decode videos in a c++ app (based on this code http://wiki.videolan.org/LibVLC_SampleCode_Qt ).
So, libvlc decodes a video and pass the result to a window (Qt here).

I want to do some processing on the image before I display it. This is why I need an access to the data pointer.

Thanks,
KiD

For those who want the answer, it can be found in the SDL example http://wiki.videolan.org/LibVLC_SampleCode_SDL .

To access pixels, the callbacks have to be used. In the callback (unlock) function (defined by vlc see SDL example), a pointer to the pixels date is given.

Cheers,
KiD

Any example including both the video and audio streams?

Cheers
Pei

For those who want the answer, it can be found in the SDL example http://wiki.videolan.org/LibVLC_SampleCode_SDL .

To access pixels, the callbacks have to be used. In the callback (unlock) function (defined by vlc see SDL example), a pointer to the pixels date is given.

Cheers,
KiD