Compressing large files in zip vs `streaming`

[noxytrux]

Hi my problem is that I'm tying to zip a folder containing multiple files which can be executed e.g this way:

 [OZZipFile *zFile = [[OZZipFile alloc] initWithFileName:zipFilePath mode:OZZipFileModeCreate];
        
        NSFileManager *fm  = [NSFileManager new];
        
        NSDirectoryEnumerator *directoryEnumerator = [fm enumeratorAtPath:folderPath];
        
        BOOL isDir;
        
        for (NSString *file in directoryEnumerator)
        {
            NSString *path = [folderPath stringByAppendingPathComponent:file];
            [fm fileExistsAtPath:path
                     isDirectory:&isDir];
            
            if (isDir)
            {
                continue;
            }
            
            OZZipWriteStream *stream = [zFile writeFileInZipWithName:file
                                                    compressionLevel:compressionLevel];

            NSData *inputDataBuffer;
            NSFileHandle *readHandle = [NSFileHandle fileHandleForReadingAtPath:path];

            [readHandle seekToFileOffset:0];

            while( [(inputDataBuffer = [readHandle readDataOfLength:2048 * 32]) length] != 0 ) {

                @autoreleasepool {

                    [stream writeData:inputDataBuffer];
                }
            }

            [stream finishedWriting];
        }
        
        [zFile close];

The problem is that some of those files may be big like i have 600mb video there, so the compression on even quiet good iPad may fail like iPad Air1 will not be able to compress the file.

I even tried doing some NSFileHandle as shown up and chunking write, but no memory footprint reduction at all.

So my question is. Does it really write like a stream or its just a name ? is there any other way to somehow compress big file in memory efficient way?

Regards
Marcin

[noxytrux]

Ok turns out while is wrong and generates leak after fix all work as expected/