| // 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 "examples/anim_util.h" |
| #include "imageio/imageio_util.h" |
| #include "src/webp/demux.h" |
| |
| extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) { |
| // WebPAnimDecoderGetInfo() is too late to check the canvas size as |
| // WebPAnimDecoderNew() will handle the allocations. |
| WebPBitstreamFeatures features; |
| if (WebPGetFeatures(data, size, &features) == VP8_STATUS_OK) { |
| if (!ImgIoUtilCheckSizeArgumentsOverflow(features.width * 4, |
| features.height)) { |
| return 0; |
| } |
| } |
| |
| // decode everything as an animation |
| WebPData webp_data = { data, size }; |
| WebPAnimDecoder* const dec = WebPAnimDecoderNew(&webp_data, NULL); |
| if (dec == NULL) return 0; |
| |
| WebPAnimInfo info; |
| if (!WebPAnimDecoderGetInfo(dec, &info)) goto End; |
| if (!ImgIoUtilCheckSizeArgumentsOverflow(info.canvas_width * 4, |
| info.canvas_height)) { |
| goto End; |
| } |
| |
| while (WebPAnimDecoderHasMoreFrames(dec)) { |
| uint8_t* buf; |
| int timestamp; |
| if (!WebPAnimDecoderGetNext(dec, &buf, ×tamp)) break; |
| } |
| End: |
| WebPAnimDecoderDelete(dec); |
| return 0; |
| } |
