Green Sky
67653bbe50
git-subtree-dir: external/libwebp/libwebp git-subtree-split: dd7364c3cefe0f5c0b3c18c3b1887d353f90fc1f
53 lines
1.8 KiB
C++
53 lines
1.8 KiB
C++
// Copyright 2020 Google Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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////////////////////////////////////////////////////////////////////////////////
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#include "examples/anim_util.h"
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#include "imageio/imageio_util.h"
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#include "src/webp/demux.h"
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extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
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// WebPAnimDecoderGetInfo() is too late to check the canvas size as
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// WebPAnimDecoderNew() will handle the allocations.
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WebPBitstreamFeatures features;
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if (WebPGetFeatures(data, size, &features) == VP8_STATUS_OK) {
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if (!ImgIoUtilCheckSizeArgumentsOverflow(features.width * 4,
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features.height)) {
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return 0;
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}
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}
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// decode everything as an animation
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WebPData webp_data = { data, size };
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WebPAnimDecoder* const dec = WebPAnimDecoderNew(&webp_data, NULL);
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if (dec == NULL) return 0;
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WebPAnimInfo info;
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if (!WebPAnimDecoderGetInfo(dec, &info)) goto End;
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if (!ImgIoUtilCheckSizeArgumentsOverflow(info.canvas_width * 4,
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info.canvas_height)) {
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goto End;
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}
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while (WebPAnimDecoderHasMoreFrames(dec)) {
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uint8_t* buf;
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int timestamp;
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if (!WebPAnimDecoderGetNext(dec, &buf, ×tamp)) break;
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}
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End:
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WebPAnimDecoderDelete(dec);
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return 0;
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}
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