我正在尝试将视频从相册保存到我的文档目录.它适用于不到1分钟的视频.但是当我试图保存视频超过1分钟时,我的应用程序正在崩溃.这种情况只发生在iPhone上,在iPad中它正在为更大的视频工作.
这是我的代码：
else if([mediaType isEqualToString:ALAssetTypeVideo])
{
ALAssetsLibrary *librarys = [[ALAssetsLibrary alloc] init];
[librarys enumerateGroupsWithTypes:ALAssetsGroupSavedPhotos usingBlock:^(ALAssetsGroup *group,BOOL *stop)
{
[group setAssetsFilter:[ALAssetsFilter allVideos]];
if ([group numberOfAssets] > 0)
{
for (int j = 0; j < [group numberOfAssets]; j++)
{
[group enumerateAssetsAtIndexes:[NSIndexSet indexSetWithIndex:j]
options:0
usingBlock:^(ALAsset *alAsset,NSUInteger index,BOOL *innerStop)
{
if (alAsset)
{
ALAssetRepresentation *representation = [alAsset defaultRepresentation];
NSURL *url = [representation url];
if ([[dict objectForKey:@"UIImagePickerControllerReferenceURL"] isEqual:url])
{
Byte *buffer = (Byte*)malloc((unsigned)[representation size]);
//NSUInteger buffered = [representation getBytes:buffer fromOffset:0.0 length:representation.size error:nil];
//Byte *buffer = ((Byte*)representation.size);
//NSUInteger chunkSize = 100 * 1024;
// uint8_t *buffer = malloc(chunkSize * sizeof(uint64_t));
NSUInteger buffered = [representation getBytes:buffer fromOffset:0.0 length:(NSUInteger)representation.size error:nil];
NSData *videoCameraData = [NSData dataWithBytesNoCopy:buffer length:buffered freeWhenDone:YES];
NSString *savedImagePath = [docDirectory stringByAppendingPathComponent:str_Header];
NSError *error;
[[NSFileManager defaultManager] createDirectoryAtPath:savedImagePath withIntermediateDirectories:NO attributes:nil error:&error];
我的应用程序正在崩溃：
NSUInteger buffered = [representation getBytes:buffer fromOffset:0.0 length:(NSUInteger)representation.size error:nil];
错误：
malloc: *** mach_vm_map(size=310386688) Failed (error code=3) *** error: can't allocate region *** set a breakpoint in malloc_error_break to debug
