Add oss-fuzz implementation to tests/
diff --git a/tests/oss-fuzz/avif_decode_fuzzer.cc b/tests/oss-fuzz/avif_decode_fuzzer.cc
new file mode 100644
index 0000000..8e7edfc
--- /dev/null
+++ b/tests/oss-fuzz/avif_decode_fuzzer.cc
@@ -0,0 +1,89 @@
+// Copyright 2020 Google Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+//###############################################################################
+
+#include "avif/avif.h"
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
+ static avifRGBFormat rgbFormats[] = {AVIF_RGB_FORMAT_RGB,
+ AVIF_RGB_FORMAT_RGBA};
+ static size_t rgbFormatsCount = sizeof(rgbFormats) / sizeof(rgbFormats[0]);
+
+ static avifChromaUpsampling upsamplings[] = {AVIF_CHROMA_UPSAMPLING_BILINEAR,
+ AVIF_CHROMA_UPSAMPLING_NEAREST};
+ static size_t upsamplingsCount = sizeof(upsamplings) / sizeof(upsamplings[0]);
+
+ static uint32_t rgbDepths[] = {8, 10};
+ static size_t rgbDepthsCount = sizeof(rgbDepths) / sizeof(rgbDepths[0]);
+
+ static uint32_t yuvDepths[] = {8, 10};
+ static size_t yuvDepthsCount = sizeof(yuvDepths) / sizeof(yuvDepths[0]);
+
+ avifDecoder *decoder = avifDecoderCreate();
+ avifResult result = avifDecoderSetIOMemory(decoder, Data, Size);
+ if (result == AVIF_RESULT_OK) {
+ result = avifDecoderParse(decoder);
+ }
+ if (result == AVIF_RESULT_OK) {
+ for (int loop = 0; loop < 2; ++loop) {
+ while (avifDecoderNextImage(decoder) == AVIF_RESULT_OK) {
+ avifRGBImage rgb;
+ avifRGBImageSetDefaults(&rgb, decoder->image);
+
+ for (size_t rgbFormatsIndex = 0; rgbFormatsIndex < rgbFormatsCount;
+ ++rgbFormatsIndex) {
+ for (size_t upsamplingsIndex = 0; upsamplingsIndex < upsamplingsCount;
+ ++upsamplingsIndex) {
+ for (size_t rgbDepthsIndex = 0; rgbDepthsIndex < rgbDepthsCount;
+ ++rgbDepthsIndex) {
+ // Convert to RGB
+ rgb.format = rgbFormats[rgbFormatsIndex];
+ rgb.depth = rgbDepths[rgbDepthsIndex];
+ rgb.chromaUpsampling = upsamplings[upsamplingsIndex];
+ avifRGBImageAllocatePixels(&rgb);
+ avifResult rgbResult = avifImageYUVToRGB(decoder->image, &rgb);
+ if (rgbResult == AVIF_RESULT_OK) {
+ for (size_t yuvDepthsIndex = 0; yuvDepthsIndex < yuvDepthsCount;
+ ++yuvDepthsIndex) {
+ // ... and back to YUV
+ avifImage *tempImage = avifImageCreate(
+ decoder->image->width, decoder->image->height,
+ yuvDepths[yuvDepthsIndex], decoder->image->yuvFormat);
+ avifResult yuvResult = avifImageRGBToYUV(tempImage, &rgb);
+ if (yuvResult != AVIF_RESULT_OK) {
+ }
+ avifImageDestroy(tempImage);
+ }
+ }
+
+ avifRGBImageFreePixels(&rgb);
+ }
+ }
+ }
+ }
+
+ if (loop != 1) {
+ result = avifDecoderReset(decoder);
+ if (result == AVIF_RESULT_OK) {
+ } else {
+ break;
+ }
+ }
+ }
+ }
+
+ avifDecoderDestroy(decoder);
+ return 0; // Non-zero return values are reserved for future use.
+}
