Creating a sound Track

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On 13/08/2011 at 09:40, xxxxxxxx wrote:

User Information:
Cinema 4D Version:   12 
Platform:   Windows  ;   
Language(s) :     C++  ;

---------
Hi,
I can't get a sound file to load into a sound track properly using Python. So I'm giving it a try with C++. But I'm running having problems creating a sound track.

C4D is crashing on me. And I don't know what I'm doing wrong:

Bool SimplePlugin::Execute(BaseDocument *doc)  
{  
  BaseObject *sphere = BaseObject::Alloc(Osphere);  
  doc->InsertObject(sphere, NULL, NULL); // Add it to the OM  
  
  CTrack *soundtrack = CTrack::Alloc(sphere,DescLevel(CTsound,DTYPE_LONG,0));  //SDK says this: CTrack::Alloc(op,DescLevel(ID,ID,0))    
  sphere->InsertTrackSorted(soundtrack); //This crashes C4D!!!  
  
  //Then I need to load a sound file from my desktop into the sound field  
   
  EventAdd();  
    
  return true;  
}

I think I might be using the wrong code in the second Alloc ID parameter.
Can anyone offer any help on creating a sound track and loading a sound file into it?

-ScottA

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 13/08/2011 at 12:42, xxxxxxxx wrote:

I figured out where my the crashing mistake was.
Now that I can successfully create a sound track. How do I load a file into it?
If I use the base container method. It just loads the file's text information into the sound field. But it doesn't actually load the file into the track:

Bool SimplePlugin::Execute(BaseDocument *doc)  
{  
  BaseObject *sphere = BaseObject::Alloc(Osphere);  
  doc->InsertObject(sphere, NULL, NULL); // Add it to the OM   
  CTrack *soundtrack = CTrack::Alloc(sphere,DescLevel(CTsound,CTsound,0));  
  sphere->InsertTrackSorted(soundtrack);   
  
  Filename file = GeGetC4DPath(C4D_PATH_DESKTOP) + "moviemix.wav";  
  BaseContainer bc = soundtrack->GetData();  
  bc.SetFilename(CID_SOUND_NAME, file);  
  soundtrack->SetData(bc);  
   
  EventAdd();      
  return true;  
}

This is the same problem I was having with Python.

-ScottA

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 13/08/2011 at 15:38, xxxxxxxx wrote:

Here's how I do it:

    // Add Sound track to Null object  
  CTrack*        track =        CTrack::Alloc(nullObj, DescID(DescLevel(ID_ANIM_SOUND,ID_ANIM_SOUND,0L)));  
  if (!track)                return ErrorException::OOMThrow(EE_NODIALOG, logging, GeLoadString(IPPERR_MEMORY_TEXT), "IPPLoader.AddSound.track");  
  nullObj->InsertTrackSorted(track);  
  if (storeUndoLoad)        baseDocument->AddUndo(UNDOTYPE_NEW, track);  
  // Set Start Time and Sound  
  // - Unofficial means to load audio file into SoundTrack  
  SoundTrack*    sdata =        (SoundTrack* )track->GetNodeData();  
  if (!sdata)                return ErrorException::Throw(EE_NODIALOG, logging, GeLoadString(IPPERR_MEMORY_TEXT), "IPPLoader.AddSound.sdata");  
  if (!sdata->sound)        return ErrorException::Throw(EE_NODIALOG, logging, GeLoadString(IPPERR_MEMORY_TEXT), "IPPLoader.AddSound.sdata->sound");  
  if (!sdata->sound->Load(sname))    return ErrorException::Throw(EE_NODIALOG, logging, GeLoadString(IPPERR_MEMORY_TEXT), "IPPLoader.AddSound.sdata->sound->Load(fn)");  
  // -  
  track->SetParameter(DescID(DescLevel(CID_SOUND_START, DTYPE_TIME,0L)), baseDocument->GetTime(), DESCFLAGS_SET_0);  
  //track->SetParameter(DescID(DescLevel(CID_SOUND_NAME, DTYPE_STRING,0L)), sname.GetFileString(), DESCFLAGS_SET_0);  
  track->SetParameter(DescLevel(CID_SOUND_NAME),sname.GetFileString(),DESCFLAGS_SET_0);  
  track->SetName(sname.GetFileString());  
  EventAdd();  

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On 13/08/2011 at 15:39, xxxxxxxx wrote:

Note that ID_ANIM_SOUND is typdef'd from CTsound for backward compatibility; just use CTsound.

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On 13/08/2011 at 16:11, xxxxxxxx wrote:

Thanks Robert.

I'm getting all kinds of undefined errors with that code from things like: SoundTrack, ErrorException, logging,sname, EE_NODIALOG, etc..)

Can you tell me what includes you're using?

-ScottA

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On 13/08/2011 at 17:12, xxxxxxxx wrote:

Never mind.
I eventually managed to get it working.

Using your example. I found out that SetParameter works:

Bool SimplePlugin::Execute(BaseDocument *doc)  
{      
  BaseObject *sphere = BaseObject::Alloc(Osphere);  
  doc->InsertObject(sphere, NULL, NULL);   
  CTrack *track = CTrack::Alloc(sphere, DescID(DescLevel(CTsound,CTsound,0L)));   
  sphere->InsertTrackSorted(track);     
  
  track->SetParameter(DescID(DescLevel(CID_SOUND_START, DTYPE_TIME,0L)), doc->GetTime(), DESCFLAGS_SET_0);      
  Filename file = GeGetC4DPath(C4D_PATH_DESKTOP) + "moviemix.wav";  
  track->SetParameter(DescLevel(CID_SOUND_NAME),file,DESCFLAGS_SET_0);  
  
  EventAdd();  
  return true;  
}

Now I just need to see if there's a way to make it work in Python.

Thanks Robert.:beer:
-ScottA

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 20/10/2011 at 15:09, xxxxxxxx wrote:

Here's my method for Python:

Download the script here:
http://cl.ly/1J002V0y3o0q1c3v2B20

I also explain it here: