CODEWITHSUNDEEP
iphonexcodeaudiovideoavmutablecomposition
Lee
Lee

Reputation: 23

Merge an Audio File with Two Video Files iphone sdk

I am wondering how I would combine a given audio file with two video files. I am stuck when it comes to combining the audio but the video is fine, here is what I have done so far

- (IBAction)MergeAndSave:(id)sender{
    if(firstAsset !=nil && secondAsset!=nil){
        [ActivityView startAnimating];
        //Create AVMutableComposition Object.This object will hold our multiple AVMutableCompositionTrack.
        AVMutableComposition* mixComposition = [[AVMutableComposition alloc] init];

        //VIDEO TRACK
        AVMutableCompositionTrack *firstTrack = [mixComposition addMutableTrackWithMediaType:AVMediaTypeVideo preferredTrackID:kCMPersistentTrackID_Invalid];
        [firstTrack insertTimeRange:CMTimeRangeMake(kCMTimeZero, firstAsset.duration) ofTrack:[[firstAsset tracksWithMediaType:AVMediaTypeVideo] objectAtIndex:0] atTime:kCMTimeZero error:nil];

        AVMutableCompositionTrack *secondTrack = [mixComposition addMutableTrackWithMediaType:AVMediaTypeVideo preferredTrackID:kCMPersistentTrackID_Invalid];
        [secondTrack insertTimeRange:CMTimeRangeMake(kCMTimeZero, secondAsset.duration) ofTrack:[[secondAsset tracksWithMediaType:AVMediaTypeVideo] objectAtIndex:0] atTime:firstAsset.duration error:nil];

        //AUDIO TRACK
        if(audioAsset==nil){

            NSURL* musicFile = [NSURL fileURLWithPath:[[NSBundle mainBundle]
                                                       pathForResource:@"click"
                                                       ofType:@"caf"]];

            AVMutableCompositionTrack *click = [[AVMediaTypeAudio] initWithContentsOfURL:musicFile error:nil];
            [click insertTimeRange:CMTimeRangeMake(kCMTimeZero, CMTimeAdd(firstAsset.duration, secondAsset.duration))
                                ofTrack:[[audioAsset tracksWithMediaType:AVMediaTypeAudio] objectAtIndex:0] atTime:kCMTimeZero error:nil];


                   }

as you can see my code for the audio doesn't work at all

Upvotes: 0

Views: 1176

Answers (1)

K'am
K'am

Reputation: 129

Change Type of audioAsset to AVURLAsset instead of AVAsset ... hope it works

if not try this... How can I overlap audio files and combine for iPhone in Xcode?

Upvotes: 1

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