Trim comp by avoiding music track layers

[Avinash Ramanath]

Hi All, need your help.
I have the below function to stack layers in a comp and trims itself. Can you help in modifying this so that it ignores music tracks with .mp3 and .wav extension

killDeadSpace(slateComp, false);

var totalDuration = 0;
for(i = 0; i < slateComp.numLayers; i++) {
currLayer = slateComp.layers[i + 1];
totalDuration += currLayer.source.duration;
}
slateComp.duration = totalDuration;

[Steve Sierra]

Hi,

I’m not sure this is the most efficiant way, but you could maybe use this. You have to be at the Item level :

var currItem = currLayer.source;

if(currItem.hasAudio == true && currItem.hasVideo == false){
}else{

//———————-Your code here—————

};

I can’t test this, I have a project rendering… and I think “.hasAudio” doesn’t exist for CS6, and that’s what I’m using.
Hope it helps anyway,

Cheers !

[Avinash Ramanath]

Hi Steve,
No it’s not working.

[Steve Sierra]

Did you do it like this ?

killDeadSpace(slateComp, false);

var totalDuration = 0;
for(i = 0; i < slateComp.numLayers; i++) {
var currLayer = slateComp.layers[i + 1];
var currItem = currLayer.source;
if(currItem.hasAudio == true && currItem.hasVideo == false){
}else{
totalDuration += currLayer.source.duration;
}
slateComp.duration = totalDuration;

Still can’t test 😉

[Avinash Ramanath]

Thanks Steve,
It was getting complicated to recognise the source of the file hence iam referring to the layer by name as “music”. I will post the working code here in some time. Thanks

[Avinash Ramanath]

Hi,
Here is the working code.

function killDeadSpace(cItem, preserveOverlap) {
if(preserveOverlap == true) {

for(i = cItem.layers.length; i > 1; i--) {

var curLayer = cItem.layers[i];

if(curLayer.name == 'Music') continue; // ignoring this layer

var prevLayer = cItem.layers[i - 1];
var deadSpace = (curLayer.inPoint) - (prevLayer.outPoint);

if(deadSpace > 0) {

var inBefore = curLayer.inPoint;
var diff = curLayer.inPoint - curLayer.startTime;
curLayer.startTime = prevLayer.outPoint - diff;
var inAfter = curLayer.inPoint;
var amountMoved = inBefore - inAfter;

var j = curLayer.index;
while(j &lt; cItem.layers.length) {
//cItem.layers[j + 1].label = 12;
cItem.layers[j + 1].startTime = cItem.layers[j + 1].startTime - amountMoved;
j++;
};
}
else {

continue;
}
}
}
else {
for(i = 2; i &lt;= cItem.layers.length; i++) {

var curLayer = cItem.layers[i];

if(curLayer.name == 'Music') continue; // ignoring this layer

var prevLayer = cItem.layers[i - 1]
var diff = curLayer.inPoint - curLayer.startTime;
curLayer.startTime = prevLayer.outPoint - diff - 0; // time to overlap
}
}
}

[Avinash Ramanath]

Hi,
Can you please make the above code work, even if the layers stacking order is from bottom to top.