libvlc: get the pointer on the data

[KidCoding]

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)

[Rémi Denis-Courmont]

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

[KidCoding]

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

[KidCoding]

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

[KidCoding]

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

[jiapei100]

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