Merge pull request #40 from SDWebImage/fix_copy_data_buffer_threads

Fix ICC profile, buffer and AVIF encoding memory leak

Author: dreampiggy

SDWebImageAVIFCoder/Classes/ColorSpace.m

@@ -215,7 +215,7 @@ void SDAVIFCalcColorSpaceMono(avifImage * avif, CGColorSpaceRef* ref, BOOL* shou
     }
     if(avif->icc.data && avif->icc.size) {
         if(@available(macOS 10.12, iOS 10.0, tvOS 10.0, *)) {
-            CFDataRef iccData = CFDataCreateWithBytesNoCopy(kCFAllocatorDefault, avif->icc.data, avif->icc.size,kCFAllocatorNull);
+            CFDataRef iccData = CFDataCreate(kCFAllocatorDefault, avif->icc.data, avif->icc.size);
             *ref = CGColorSpaceCreateWithICCData(iccData);
             CFRelease(iccData);
             *shouldRelease = TRUE;
@@ -313,7 +313,7 @@ void SDAVIFCalcColorSpaceRGB(avifImage * avif, CGColorSpaceRef* ref, BOOL* shoul
     }
     if(avif->icc.data && avif->icc.size) {
         if(@available(macOS 10.12, iOS 10.0, tvOS 10.0, *)) {
-            CFDataRef iccData = CFDataCreateWithBytesNoCopy(kCFAllocatorDefault, avif->icc.data, avif->icc.size,kCFAllocatorNull);
+            CFDataRef iccData = CFDataCreate(kCFAllocatorDefault, avif->icc.data, avif->icc.size);
             *ref = CGColorSpaceCreateWithICCData(iccData);
             CFRelease(iccData);
             *shouldRelease = TRUE;

SDWebImageAVIFCoder/Classes/Conversion.m

@@ -704,11 +704,11 @@ static CGImageRef CreateCGImage8(avifImage * avif) {
     }
 
 end_all:
-    free(resultBufferData);
-    free(argbBufferData);
-    free(dummyCbData);
-    free(dummyCrData);
-    free(scaledAlphaBufferData);
+    if (resultBufferData) free(resultBufferData);
+    if (argbBufferData) free(argbBufferData);
+    if (dummyCbData) free(dummyCbData);
+    if (dummyCrData) free(dummyCrData);
+    if (scaledAlphaBufferData) free(scaledAlphaBufferData);
     return result;
 }
 

SDWebImageAVIFCoder/Classes/SDImageAVIFCoder.m

@@ -210,12 +210,14 @@ - (nullable NSData *)encodedDataWithImage:(nullable UIImage *)image format:(SDIm
     vImage_Buffer src;
     v_error = vImageBuffer_InitWithCGImage(&src, &srcFormat, NULL, imageRef, kvImageNoFlags);
     if (v_error != kvImageNoError) {
+        vImageConverter_Release(convertor);
         return nil;
     }
     vImage_Buffer dest;
-    vImageBuffer_Init(&dest, height, width, hasAlpha ? 32 : 24, kvImageNoFlags);
-    if (!dest.data) {
-        free(src.data);
+    v_error = vImageBuffer_Init(&dest, height, width, hasAlpha ? 32 : 24, kvImageNoFlags);
+    if (v_error != kvImageNoError) {
+        if (src.data) free(src.data);
+        vImageConverter_Release(convertor);
         return nil;
     }
 
@@ -224,15 +226,15 @@ - (nullable NSData *)encodedDataWithImage:(nullable UIImage *)image format:(SDIm
     free(src.data);
     vImageConverter_Release(convertor);
     if (v_error != kvImageNoError) {
-        free(dest.data);
+        if(dest.data) free(dest.data);
         return nil;
     }
 
     avifPixelFormat avifFormat = AVIF_PIXEL_FORMAT_YUV444;
 
     avifImage *avif = avifImageCreate((int)width, (int)height, 8, avifFormat);
     if (!avif) {
-        free(dest.data);
+        if (dest.data) free(dest.data);
         return nil;
     }
     avifRGBImage rgb = {
@@ -245,7 +247,6 @@ - (nullable NSData *)encodedDataWithImage:(nullable UIImage *)image format:(SDIm
     };
     avifImageRGBToYUV(avif, &rgb);
     free(dest.data);
-    dest.data = NULL;
 
     NSData *iccProfile = (__bridge_transfer NSData *)CGColorSpaceCopyICCProfile([SDImageCoderHelper colorSpaceGetDeviceRGB]);
 
@@ -264,14 +265,15 @@ - (nullable NSData *)encodedDataWithImage:(nullable UIImage *)image format:(SDIm
     encoder->maxThreads = 2;
     avifResult result = avifEncoderWrite(encoder, avif, &raw);
 
+    avifImageDestroy(avif);
+    avifEncoderDestroy(encoder);
     if (result != AVIF_RESULT_OK) {
-        avifEncoderDestroy(encoder);
+        if (raw.data) avifRWDataFree(&raw);
         return nil;
     }
 
     NSData *imageData = [NSData dataWithBytes:raw.data length:raw.size];
-    free(raw.data);
-    avifEncoderDestroy(encoder);
+    avifRWDataFree(&raw);
 
     return imageData;
 }