Terminated App due to memory pressure While creating Video ios

Question

I am create the video using the Array of images . If I select more than 40 images from gallery it gives the Error:Terminated App Due to memory pressure I am use CVPixelBufferRef to create the Video.

I write to create the video

for (int i=0; i<[_slideshowArray count]; i++) {
UIImage *img=[_slideshowArray objectAtIndex:i];
buffer = [self pixelBufferFromCGImage:[img CGImage] size:imageSize];
BOOL append_ok = NO;
int j = 0;
while (!append_ok && j < 9999) {
    if (adaptor.assetWriterInput.readyForMoreMediaData)  {
        //  NSLog(@"Processing video frame (%d,%lu)",frameCount,(unsigned long)[imageArray count]);

        CMTime frameTime = CMTimeMake(frameCount*frameDuration,(int32_t) fps);
        append_ok = [adaptor appendPixelBuffer:buffer withPresentationTime:frameTime];
        if(!append_ok){
            NSError *error = videoWriter.error;
            if(error!=nil) {
                NSLog(@"Unresolved error %@,%@.", error, [error userInfo]);
            }
        }
    }
    else {
        printf("adaptor not ready %d, %d\n", frameCount, j);
        [NSThread sleepForTimeInterval:0.2];
    }
    j++;
}
if (!append_ok) {
    printf("error appending image %d times %d\n, with error.", frameCount, j);
}
frameCount++;
}
[videoWriterInput markAsFinished];
[videoWriter endSessionAtSourceTime:tm];
[videoWriter finishWritingWithCompletionHandler:^{
NSLog(@"Write Ended");
}];

In this code _slideShowArray is my array that is the Array of UIImage. I put the screenshot of the instruments below.

When I create the video At that time memory will increase otherwise it is 9 or 10 MB.

Note : I am use ARC.

enter image description here

After the creating the video it does not release the memory.

I found the memory leaks in this project please help me..

Memory Leak Image

Rather than pre-load all of the images into an array, why not just load each image as you need it. This will vastly reduce your memory requirement — Paulw11, Sep 17 '14 at 11:46

score 1 · Answer 1 · answered Sep 19 '14 at 13:04

You do not release your buffer in your code. Now you insert the below code.

CVPixelBufferPoolRef bufferPool = adaptor.pixelBufferPool;
            NSParameterAssert(bufferPool != NULL);
            CVPixelBufferRelease(buffer);

This code insert under the

        append_ok = [adaptor appendPixelBuffer:buffer withPresentationTime:frameTime];

I hope this will help you for release the memory

Terminated App due to memory pressure While creating Video ios

1 Answers1