I am coding a plugin for windows that essentially reproduce a movie file or an audio file with control on output channels. (This feature is not yet available natively on Isadora on Windows, I am using free external libraries for this, libsndfile, ffmpeg and portaudio for the sound processing)

For this I need at some moment to recover the MediaInfo struct from the media index in media window that is the first user input. I think I should use the GetMediaObjectInfo_ function as follows

info->isMovie=GetMediaObjectInfo_(ip,inControlInfo,kMediaTypeMovie,info->mSoundNumber,info->outName,true,info->outImage,NULL)
info->isAudio=GetMediaObjectInfo_(ip,inControlInfo,kMediaTypeAudio,info->mSoundNumber,info->outName,false,info->outImage,NULL)

where info is of the type PluginInfo, mSoundNumber is of type integer and represents index number into the Media Window, isMovie, isAudio are booleans, outImage is an ImageBufferPtr that will be send to the output if IsMovie is true.

But I can't figure out what is the parameter inControlInfo, more precisely, is it already defined somewhere, at least partially? Can I get some default ControlInfo from somewhere just in order to use the GetMediaObjectInfo function? Should I define a function called GetControlInfo_() or a cast somewhere? In the ControlInfo struct definition there is a lot of required fields but none of them is written in the DemoPlugin, so I am a bit lost and any help is welcome.

[Edit] Also, I would like to know if outName will be the whole path to the file or just the name of the file.

[Edit] Ok, I think I figured this out, I can recover the info about the media with the ExecuteMediaCommand_() function by passing command kMediaGetName to obtain the name of the file I want to play the sound with an external library, and command kMediaGetImageBuffer to obtain its imagebuffer to pass on. Like this
ExecuteMediaCommand_(ip,inActorInfo,inActorInfo->mID,kMediaGetName,kMediaTypeAudio,info->mSoundNumber,p1,256);
ExecuteMediaCommand_(ip,inActorInfo,inActorInfo->mID,kMediaGetName,kMediaTypeAudio,info->mSoundNumber,p1,256);

I'm running into issues with building a C/C++ plugin for IsadoraCore 1.3.0f24 (same issue with Isadora 1.3.0f22) using the sample Xcode projects provided on the Troikatronix web site. I'm using an Intel Core2 Duo, Mac OS 10.6, Xcode 3.2.6. Downloading the most recent IsadoraSDK from the Troikatronix web site, the Xcode projects will build with no modification other than pointing the project to the library and Includes directories, but when I launch IsadoraCore 1.3.0f24 I get the message that the plugin will not load because it is not compatible with this version of Isadora. I've tried just about every combination of MacOSX SDK  (MacOSX10.4u.sdk / MacOSX10.5.sdk / MacOSX10.6.sdk), various architectures (i386, ppc, native, 32-Intel, 64-Intel), various compilers (gcc 4.0, gcc 4.2, the more recent LLVM compilers), and various Mac OSX targets (Mac OSX 10.4, Mac OSX 10.5, Mac OSX 10.6).  But none of them produces a plugin that will load. (I have also tried compiling for 64-bit Intel, but the IsadoraDemoPlugin fails to compile then because of a type definition problem in the image buffer class.) Can someone let me know what the correct compiler/SDK settings should be, so I can rule those out as the source of the problem?   Thanks, --Bruce

Just wanted to ad that I have had a chance to test on Mac running F25, and the patch runs beautifully, other than a few small and very manageable font issues.
I have identified a few issues with initial values not loading into channel selectors, but simple selecting the required channel again will correct the problem.. and the top 'active channel' indicator strip works, so you can always peak at it.
In any case, I am happy to see it working on Mac, and plan to continue with improvements soon, including a short getting started video.

I'll try to take a look at this in the next couple of days. Bump me if you don't hear something by Thursday. Thanks.

Best Wishes, Mark

Unfortunately not. What you see is what you get. In terms of helping, that might be possible. But given my current artistic residency, I can't be of any help. It's going to be a big task to document everything that's there.

Best Wishes, Mark

Hello,

Well, there seems to be some source code here http://phoboslab.org/log/2009/07/uvc-camera-control-for-mac-os-x it's just a matter of getting it into an Isadora plugin. I wonder if anybody else would like to try this as a coding challenge. I just don't have the extra time right now. Best Wishes, Mark

Hi ! ZeroMQ seems to become standard in distributed application development . Does it make sense to develop server & client , encoder and decoder actors for Izzy ? An interesting project along this reasoning : http://lubyk.org/en/project316.html Best Benedikt

Hi Lanz

Don't know why my reply earlier today wasn't posted... but that scripting works very well, thanks! There's a bit of a delay (~2 - 4 seconds) before the bin is refreshed, but in this project that's ok. Really interesting learning how flexible and open the software is - so many possibilities for projects! best, Anthony

Dear Bill,

In the next version, the media window will no longer appear if the media is imported using Applescript. Keep your eyes posted on the forum for news of this version. Best Wishes, Mark

Yes, Mark I mean creating a custom C++ actor.
The device I wish to interface communicates over bluetooth, and appears to the pc on a com port.
I know that the serial setup should be done via the serial setup under communications, then do we simply create a port number input (limit it 1-8)?
An example?

Hey Maxi,

I'm looking for multiply, overlay and screen blending mode plugins that blend projectors not just a foreground and background image. FreeFrame's burn plugin does this. I'd like to build an image with multiple layers — much like an After Effects file. I can give you a much more detailed description of what I need if you think it's something you'd like to take on. Of course, let me know your rates.

Thank you!

If we could have the lines adjust to what is selected it would be amazing.. For instance, if you select a 'router' actor that all patch cords in and out would remain red.. anything that is not connected to the 'router' would grey out.
From my understanding of the way messages are requested/passed it might be possible to use this routing to create highlighted patch cords per selection??
@Mark , is that a possibility?

Noted about ??? From what he said, I think it was a bug in their code, no?

-- M

i tested them today and they worked fine together. I guess i could install another ATI card but i really did not want to place another eyefinity into the machine just for a control monitor but i guess if i could put it into crossfire it miugt be worth it. What problems have you heard about Mehdi?

If anyone is looking for the windows quicktime sdk, it is available here:
https://developer.apple.com/downloads/index.action

Hello everybody,

I have developed a multichannel sound player actor for Isadora. With this actor, you can direct  the sound from your audio files to any channel of your multichannel output soundcard, and have controls for volume, start trigger, loop enable. The actor outputs the current position in the audio file and generate an end trigger. I think this will be mainly of interest for the people that are working on Windows OS, as Isadora does not support natively the multichannel sound settings under Windows yet.

This actor was first developed for "The light does not stop there" www.la-lumiere-ne-s-arrete-pas-la.org, an ongoing cybernetic project of the neticLab www.neticLab.org .

In the attached zip file you will find the Visual Studio 2008 project that contains the code for this actor.
Instructions for installation:
0. Install QuicktimeSDK and IsadoraSDK if you don't have them already installed.
1. Install Portaudio. (These are the sources I used
http://www.portaudio.com/archives/pa_stable_v19_20111121.tgz, and here you have tutorial on how to compile it http://portaudio.com/docs/v19-doxydocs/tutorial_start.html . We are using portaudio with the WASAPI hostapi.)
2. Install LibSndfile ( http://www.mega-nerd.com/libsndfile/)
3. Adapt the attached code to your system:

First, you should check in the project properties that the paths to portaudio and libsndfile correspond to the folders where you installed them. Then you should adapt in the AudioComplex01.cpp file, inside the ActivateActor function, the recognition of the device. The code I am sharing is adapted to the recognition of a hybrid ultralite MOTU device, which has eight analog mono outputs. In "La Lumière ne s'arrête pas là", two ultralite MOTU are connected such that eight stereo channels are available. If the number of output channels of your sound card is not eight, there are some changes to do throughout the code. If anyone could tell me how to put a variable number of inputs/outputs in an actor, I could solve this issue.
4. Compile.

This actor was tested on our project with *.wav files and it did serve its purpose. However we would like to add some functionalities like, for example, an automatic recognition of every available multichannel devices so the user can choose his device from a list instead of having to adapt the code and recompile the code by hand as this is the case now.  We would like also to change the library we are using to read from sound files to something that read wider variety of sound files than libsndfile, or even movie files. Maybe ffmpeg? There are still some other things on our TO DO list but I will not write it all here because it would make the post way too long...
If you happened to update or add some features to this code, we would be grateful to you if you could share them to us here. We will keep you posted with our forthcoming updates. 7c1957-audioc01.zip

Dear Mark,

Thank you, this function works well.

best regards,
Alex

Gracias Adolfo,

vi el video. Muy interesante. Y gracias por el actor del usuario. Voy continuar. Falta trabajo... Y te le mando  Ciao

no there should not be a problem server side, it's just the upload plugin for the forum where you have to add what kind of files are allowed to be uploaded.

Best
Michel

I am creating my own socket within the actor. So if you duplicate the actor (or drag a new actor on the stage with the same port) it tries to create a socket two times on the same port and it will fail because you cannot have to similar binds.

Some background info which helped me figuring this out I found is here: http://stackoverflow.com/questions/14388706/socket-options-so-reuseaddr-and-so-reuseport-how-do-they-differ-do-they-mean-t To clarify the way I make bind the address is:  listen_socket = new UdpListeningReceiveSocket( IpEndpointName( IpEndpointName::ANY_ADDRESS, listen_port ), this ); Where listen_port is the port to which I listen. I am using the oscpack library and the way OpenFrameworks implements it. The try{}  catch(exception& e){} works fine (in the sense that Isadora does not crash), but output to the console will not really help the user .. So, my question is how can I create visible feedback to an Isadora user when a second actor of the same type with the same port is created. As reference I am attaching an image of the plugin I am working on. I hope I am expressing myself clearly and you understand my question better.

fa9cae-screen-shot-2014-02-18-at-5.12.45-pm.png