Output Current Sound Track Name

mrittman

Thanks so much @s_bach, this is really helpful!

mrittman

@s_bach I'm not super savvy when it comes to programming. If I had 18 or so tracks, what would be the proper way to write this code so it loops through all of them?

s_bach

Hello,

the tracks of an object are stored in a list. You can access the first track using GetFirstCTrack(). Then you can loop over all tracks with an ordinary while() loop and GetNext().

track = op.GetFirstCTrack()

while track is not None:
		
		print(track.GetName())
		
		track = track.GetNext()

See also the example in the C++ CTrack documentation.

best wishes,
Sebastian

mrittman

@s_bach So something like this?

track = op.GetFirstCTrack()

while track is not None:

start = track[c4d.CID_SOUND_START]

# get length
# length is stored as a string; need to convert it to int
length = track[c4d.CID_SOUND_LENGTH]
length = length[:-2]
length = int(float(length))
fps = doc.GetFps()
end = start + c4d.BaseTime(length, fps)

# check if the current frame is within the range of the sound clip

curTime = doc.GetTime()

if curTime >= start and curTime < end:
    print("Uses Track: " + track.GetName())
else:
    print("no hit")

I'm really struggling with wrapping my head around this

s_bach

Well, you indentation is off. And you are missing

track = track.GetNext()

at the end.

Besides that, this should work:


    track = op.GetFirstCTrack()
    
    while track is not None:
    
        print(track.GetName())
        
        start = track[c4d.CID_SOUND_START]

        # get length
        # length is stored as a string; need to convert it to int
        length = track[c4d.CID_SOUND_LENGTH]
        length = length[:-2]
        length = int(float(length))
        fps = doc.GetFps()
        end = start + c4d.BaseTime(length, fps)
        
        # check if the current frame is within the range of the sound clip
        
        curTime = doc.GetTime()
        
        if curTime >= start and curTime < end:
            print("Uses Track: " + track.GetName())
        else:
            print("no hit")
    
        track = track.GetNext()

I strongly suggest to get familiar with the basics of Python first.

best wishes,
Sebastian

mrittman

Thanks @s_bach, I really appreciate your help. I’m more of a motion designer, but wanted to tailor the scene I’m working on to make it easier.

HTML/CSS come really easy to me, but my brain just comes to a halt when I try and get my head around python

mrittman

Also, with this code, I am getting the spinning beachball of death
It must be trapped in the loop maybe?

s_bach

Hello,

are you sure the indentation of your code is correct? Do you call

track = track.GetNext()

at the end of your loop?

What is the context of your code? Are you calling it whining a script or a Python Tag? Please post the full code you are actually using.

If a "while" loop is not suitable, you could also use GetCTracks() to get a list of all the tracks.

tracks = op.GetCTracks()

for track in tracks:
    print(track.GetName())

best wishes,
Sebastian

mrittman

@s_bach Okay it's kind of working now, but is only outputting the last track in the list. I am using this script in a python tag:

import c4d
#Welcome to the world of Python

def main():

    # find object in scene, store in obj
    obj = doc.SearchObject('VO')


    # store some variables
    track = obj.GetCTracks()

    obj[c4d.ID_USERDATA,4] = track[0].GetName()
    track[0][c4d.CID_SOUND_ONOFF] = obj[c4d.ID_USERDATA,6]
    track[0][c4d.CID_SOUND_START] = obj[c4d.ID_USERDATA,7]
    track[0][c4d.CID_SOUND_NAME] = obj[c4d.ID_USERDATA,14]

    obj[c4d.ID_USERDATA,10] = track[1].GetName()
    track[1][c4d.CID_SOUND_ONOFF] = obj[c4d.ID_USERDATA,11]
    track[1][c4d.CID_SOUND_START] = obj[c4d.ID_USERDATA,12]
    track[1][c4d.CID_SOUND_NAME] = obj[c4d.ID_USERDATA,9]

    obj[c4d.ID_USERDATA,15] = track[2].GetName()
    track[2][c4d.CID_SOUND_ONOFF] = obj[c4d.ID_USERDATA,16]
    track[2][c4d.CID_SOUND_START] = obj[c4d.ID_USERDATA,17]
    track[2][c4d.CID_SOUND_NAME] = obj[c4d.ID_USERDATA,18]

    obj[c4d.ID_USERDATA,3] = track[3].GetName()
    track[3][c4d.CID_SOUND_ONOFF] = obj[c4d.ID_USERDATA,20]
    track[3][c4d.CID_SOUND_START] = obj[c4d.ID_USERDATA,21]
    track[3][c4d.CID_SOUND_NAME] = obj[c4d.ID_USERDATA,22]

    obj[c4d.ID_USERDATA,24] = track[4].GetName()
    track[4][c4d.CID_SOUND_ONOFF] = obj[c4d.ID_USERDATA,25]
    track[4][c4d.CID_SOUND_START] = obj[c4d.ID_USERDATA,26]
    track[4][c4d.CID_SOUND_NAME] = obj[c4d.ID_USERDATA,27]

    obj[c4d.ID_USERDATA,29] = track[5].GetName()
    track[5][c4d.CID_SOUND_ONOFF] = obj[c4d.ID_USERDATA,30]
    track[5][c4d.CID_SOUND_START] = obj[c4d.ID_USERDATA,31]
    track[5][c4d.CID_SOUND_NAME] = obj[c4d.ID_USERDATA,32]

    obj[c4d.ID_USERDATA,34] = track[6].GetName()
    track[6][c4d.CID_SOUND_ONOFF] = obj[c4d.ID_USERDATA,35]
    track[6][c4d.CID_SOUND_START] = obj[c4d.ID_USERDATA,36]
    track[6][c4d.CID_SOUND_NAME] = obj[c4d.ID_USERDATA,37]

    obj[c4d.ID_USERDATA,39] = track[7].GetName()
    track[7][c4d.CID_SOUND_ONOFF] = obj[c4d.ID_USERDATA,40]
    track[7][c4d.CID_SOUND_START] = obj[c4d.ID_USERDATA,41]
    track[7][c4d.CID_SOUND_NAME] = obj[c4d.ID_USERDATA,42]

    obj[c4d.ID_USERDATA,44] = track[8].GetName()
    track[8][c4d.CID_SOUND_ONOFF] = obj[c4d.ID_USERDATA,45]
    track[8][c4d.CID_SOUND_START] = obj[c4d.ID_USERDATA,46]
    track[8][c4d.CID_SOUND_NAME] = obj[c4d.ID_USERDATA,47]

    obj[c4d.ID_USERDATA,49] = track[9].GetName()
    track[9][c4d.CID_SOUND_ONOFF] = obj[c4d.ID_USERDATA,50]
    track[9][c4d.CID_SOUND_START] = obj[c4d.ID_USERDATA,51]
    track[9][c4d.CID_SOUND_NAME] = obj[c4d.ID_USERDATA,52]

    obj[c4d.ID_USERDATA,54] = track[10].GetName()
    track[10][c4d.CID_SOUND_ONOFF] = obj[c4d.ID_USERDATA,55]
    track[10][c4d.CID_SOUND_START] = obj[c4d.ID_USERDATA,56]
    track[10][c4d.CID_SOUND_NAME] = obj[c4d.ID_USERDATA,57]

    obj[c4d.ID_USERDATA,59] = track[11].GetName()
    track[11][c4d.CID_SOUND_ONOFF] = obj[c4d.ID_USERDATA,60]
    track[11][c4d.CID_SOUND_START] = obj[c4d.ID_USERDATA,61]
    track[11][c4d.CID_SOUND_NAME] = obj[c4d.ID_USERDATA,62]

    obj[c4d.ID_USERDATA,64] = track[12].GetName()
    track[12][c4d.CID_SOUND_ONOFF] = obj[c4d.ID_USERDATA,65]
    track[12][c4d.CID_SOUND_START] = obj[c4d.ID_USERDATA,66]
    track[12][c4d.CID_SOUND_NAME] = obj[c4d.ID_USERDATA,67]

    obj[c4d.ID_USERDATA,69] = track[13].GetName()
    track[13][c4d.CID_SOUND_ONOFF] = obj[c4d.ID_USERDATA,70]
    track[13][c4d.CID_SOUND_START] = obj[c4d.ID_USERDATA,71]
    track[13][c4d.CID_SOUND_NAME] = obj[c4d.ID_USERDATA,72]

    obj[c4d.ID_USERDATA,74] = track[14].GetName()
    track[14][c4d.CID_SOUND_ONOFF] = obj[c4d.ID_USERDATA,75]
    track[14][c4d.CID_SOUND_START] = obj[c4d.ID_USERDATA,76]
    track[14][c4d.CID_SOUND_NAME] = obj[c4d.ID_USERDATA,77]

    obj[c4d.ID_USERDATA,79] = track[15].GetName()
    track[15][c4d.CID_SOUND_ONOFF] = obj[c4d.ID_USERDATA,80]
    track[15][c4d.CID_SOUND_START] = obj[c4d.ID_USERDATA,81]
    track[15][c4d.CID_SOUND_NAME] = obj[c4d.ID_USERDATA,82]

    obj[c4d.ID_USERDATA,84] = track[16].GetName()
    track[16][c4d.CID_SOUND_ONOFF] = obj[c4d.ID_USERDATA,85]
    track[16][c4d.CID_SOUND_START] = obj[c4d.ID_USERDATA,86]
    track[16][c4d.CID_SOUND_NAME] = obj[c4d.ID_USERDATA,87]

    obj[c4d.ID_USERDATA,89] = track[17].GetName()
    track[17][c4d.CID_SOUND_ONOFF] = obj[c4d.ID_USERDATA,90]
    track[17][c4d.CID_SOUND_START] = obj[c4d.ID_USERDATA,91]
    track[17][c4d.CID_SOUND_NAME] = obj[c4d.ID_USERDATA,92]



    # outputs the current track name where playhead is
    traks = obj.GetCTracks()

    for trak in traks:

        start = trak[c4d.CID_SOUND_START]

        # get length
        # length is stored as a string; need to convert it to int
        length = trak[c4d.CID_SOUND_LENGTH]
        length = length[:-2]
        length = int(float(length))
        fps = doc.GetFps()
        end = start + c4d.BaseTime(length, fps)

        # check if the current frame is within the range of the sound clip

        curTime = doc.GetTime()

        if curTime >= start and curTime < end:
            obj[c4d.ID_USERDATA,19] = trak.GetName()
        else:
            obj[c4d.ID_USERDATA,19] = "No Track"

        trak = trak.GetNext()

s_bach

Hello,

it seems you just write the name of the last track into your user data field:

obj[c4d.ID_USERDATA,19] = trak.GetName()

Since you do not extend that string, it can only show one name.

best wishes,
Sebastian