ios – 崩溃CGImageDestinationFinalize

我的应用程序允许用户使用照片框架编辑照片.我看到一些崩溃报告,似乎在生成输出图像时发生崩溃,但我不知道问题所在.这种崩溃发生在多个硬件设备和多个版本的iOS 9,包括最新的9.1.我的应用程序最后一个调用是CG ImageDestinationFinalize,以创建编辑的图像NSData.崩溃报告显示,在出现崩溃发生在GLTextureManager之前,CoreImage空间中继续进行呼叫.

这可能是内存不足的问题吗？你看到这个问题吗？如何解决？

PhotoEditor.swift的相关代码,内部函数fullImageOutput,从editSingleAsset调用,后台队列中运行QOS_CLASS_UTILITY：

let outputPhoto = //the generated CIImage that is the edited photo to be saved to disk
let dataRef = CFDataCreateMutable(nil,0)

if let destination = CGImageDestinationCreateWithData(dataRef,"public.jpeg",1,nil) {
    struct ContextStruct {
        static var ciContext: CIContext? = nil
    }
    if ContextStruct.ciContext == nil {
        let eaglContext = EAGLContext(API: .OpenGLES2)
        ContextStruct.ciContext = CIContext(EAGLContext: eaglContext)
    }
    let cgImage = ContextStruct.ciContext!.createCGImage(outputPhoto,fromrect: outputPhoto.extent)

    CGImageDestinationAddImage(destination,cgImage,nil)

    if CGImageDestinationFinalize(destination) { //FIXME: CRASH
       //write to disk from dataRef etc
    }

}

崩溃报告的可视化：

崩溃报告详情：

Exception Type:  EXC_BAD_ACCESS (SIGSEGV)
Exception Subtype: KERN_INVALID_ADDRESS at 0x0000000145201ac0
Triggered by Thread:  7

Thread 7 name:
Thread 7 Crashed:
0   libsystem_platform.dylib        0x0000000199e36220 _platform_memmove + 48 (memmove.s:220)
1   CoreImage                       0x0000000184e86e4c CI::GLTextureManager::texture_for_CGImage(CGImage*,CI::PixelFormat) + 372 (context-gles.cpp:910)
2   CoreImage                       0x0000000184e8a310 CI::GLContext::bind_textures(CI::SerialObjectPtrArray*,CI::Kernel*) + 240 (context-gles.cpp:3060)
3   CoreImage                       0x0000000184e899e0 CI::GLContext::render_apply_node(CI::Node const*,bool) + 160 (context-gles.cpp:2699)
4   CoreImage                       0x0000000184e897fc CI::GLContext::recursive_render(CI::Node*,bool) + 912 (context-gles.cpp:2379)
5   CoreImage                       0x0000000184e8a788 CI::GLContext::render(CI::Node*) + 180 (context-gles.cpp:2880)
6   CoreImage                       0x0000000184e9bfec CI::_get_bitmap(CI::Context*,CI::Image*,CGRect,CGColorSpace*,CI::BitmaP*) + 676 (render.cpp:2622)
7   CoreImage                       0x0000000184e9bc9c CI::image_get_bitmap(CI::Context*,CI::BitmaP*,unsigned long) + 664 (render.cpp:2680)
8   CoreImage                       0x0000000184ea08e8 copyImageBlockSetoptsCallback(void*,CGImageProvider*,CGSize,__CFDictionary const*) + 856 (imageProvider.h:143)
9   CoreGraphics                    0x0000000184af2198 CGImageProvidercopyImageBlockSet + 220 (CGImageProvider.c:500)
10  ImageIO                         0x0000000185baa41c GetBytesImageProvider + 484 (CGImagePixelDataProvider.c:382)
11  ImageIO                         0x0000000185c40440 _CGImagePluginWriteAppleJPEG + 2444 (imageAppleJPEG.c:2785)
12  ImageIO                         0x0000000185ba3020 CGImageDestinationFinalize + 724 (CGImageDestination.c:2119)
13  MyAppNameHere                   0x0000000100096468 _TFC11 MyAppNameHere 12PhotoEditor15fullImageOutputfS0_FT_GSqCSo22PHContentEditingOutput_ + 1272 (PhotoEditor.swift:71)
14  MyAppNameHere                   0x0000000100113310 _TFFFFFC11 MyAppNameHere 36PhotosPickerCollectionViewController16editSingleAssetFS0_FCSo7PHAssetT_U_FT_T_U0_FTGSqCSo21PHContentEditingInput_GVSs10DictionaryCSo8NSObjectPSs9AnyObject___T_U_FT_T_U_FT_T_ + 172 (PhotosPickerCollectionViewController.swift:851)
15  libdispatch.dylib               0x0000000199c296e8 _dispatch_call_block_and_release + 24 (init.c:761)
16  libdispatch.dylib               0x0000000199c296a8 _dispatch_client_callout + 16 (object.m:513)
17  libdispatch.dylib               0x0000000199c37b40 _dispatch_root_queue_drain + 2140 (inline_internal.h:1063)
18  libdispatch.dylib               0x0000000199c372dc _dispatch_worker_thread3 + 112 (queue.c:4250)
19  libsystem_pthread.dylib         0x0000000199e3d470 _pthread_wqthread + 1092 (pthread.c:1990)
20  libsystem_pthread.dylib         0x0000000199e3d020 start_wqthread + 4 (pthread_asm.s:191)

解决方法

这是iOS 9中已经解决的iOS 9中的已知问题.源代码没有任何问题.