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media / gpu / vp9_decoder_fuzzer.cc [blame]
// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifdef UNSAFE_BUFFERS_BUILD
// TODO(crbug.com/40285824): Remove this and convert code to safer constructs.
#pragma allow_unsafe_buffers
#endif
#include "media/gpu/vp9_decoder.h"
#include <stddef.h>
#include "media/base/decoder_buffer.h"
#include "media/base/test_data_util.h"
#include "media/base/video_codecs.h"
#include "media/base/video_types.h"
#include "media/gpu/vp9_picture.h"
namespace {
class FakeVP9Accelerator : public media::VP9Decoder::VP9Accelerator {
public:
FakeVP9Accelerator() = default;
FakeVP9Accelerator(const FakeVP9Accelerator&) = delete;
FakeVP9Accelerator& operator=(const FakeVP9Accelerator&) = delete;
~FakeVP9Accelerator() override = default;
// media::VP9Decoder::VP9Accelerator
scoped_refptr<media::VP9Picture> CreateVP9Picture() override {
return new media::VP9Picture();
}
Status SubmitDecode(
scoped_refptr<media::VP9Picture> pic,
const media::Vp9SegmentationParams& segm_params,
const media::Vp9LoopFilterParams& lf_params,
const media::Vp9ReferenceFrameVector& reference_frames) override {
return Status::kOk;
}
bool OutputPicture(scoped_refptr<media::VP9Picture> pic) override {
return true;
}
bool NeedsCompressedHeaderParsed() const override { return true; }
};
} // namespace
extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
if (!size) {
return 0;
}
media::VP9Decoder decoder(std::make_unique<FakeVP9Accelerator>(),
media::VP9PROFILE_PROFILE0);
auto external_memory =
std::make_unique<media::ExternalMemoryAdapterForTesting>(
base::span(data, size));
scoped_refptr<media::DecoderBuffer> decoder_buffer =
media::DecoderBuffer::FromExternalMemory(std::move(external_memory));
decoder.SetStream(1, *decoder_buffer);
size_t retry_count = 0;
while (true) {
switch (decoder.Decode()) {
case media::AcceleratedVideoDecoder::DecodeResult::kConfigChange:
break;
case media::AcceleratedVideoDecoder::DecodeResult::kTryAgain:
if (++retry_count > 3) {
return 0;
}
break;
default:
return 0;
}
}
}