The VideoLAN Forums

Hi,
I have a project where I need to play a DVD to an OpenGL texture, I've achieved this by outputting the DVD into an SDL surface and then copying that to an OpenGL texture, however doing this I lose the ability to interact with the DVD menu (chapter selection, play, sound options etc). I was wondering if there was a solution to this problem? I've tried searching but found nothing. I thought about perhaps rendering to the default DirectX window (which allows interaction), once play has been clicked grabbing the frames and outputting it to an OpenGL texture this way?

Copying frames is a bad idea because it is slow. Grabbing frames -from the video memory- is an extremely bad idea because it is extremely slow.

Basically, you need to extend the LibVLC API.

Use the vmem output module to copy the frame data into an OpenGL surface. Then use "__var_SetInteger" to control the DVD menu.

You need to do this in C++ though (or C++/CLI, which I am doing)

libvlc_instance_t * inst;
[..init libvlc instance..]

vlc_object_t* obj = libvlc_get_vlc_instance(inst);

These are the values for simple DVD navigation:
__var_SetInteger(obj, "key-pressed", KEY_DOWN);
__var_SetInteger(obj, "key-pressed", KEY_UP);
__var_SetInteger(obj, "key-pressed", KEY_LEFT);
__var_SetInteger(obj, "key-pressed", KEY_RIGHT);
__var_SetInteger(obj, "key-pressed", KEY_ENTER);