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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=2 et sw=2 tw=80: */
/* Copyright 2018 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. */
/* This file was originally imported from Google's oss-fuzz project at
* https://github.com/google/oss-fuzz/tree/master/projects/libaom */
#define DECODE_MODE 1
#include "FuzzingInterface.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <memory>
#include "aom/aom_decoder.h"
#include "aom/aomdx.h"
#include "aom_ports/mem_ops.h"
#include "common/ivfdec.h"
static const char *const kIVFSignature = "DKIF";
static void close_file(FILE *file) { fclose(file); }
void usage_exit(void) { exit(EXIT_FAILURE); }
static int
LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
std::unique_ptr<FILE, decltype(&close_file)> file(
fmemopen((void *)data, size, "rb"), &close_file);
if (file == nullptr) {
return 0;
}
char header[32];
if (fread(header, 1, 32, file.get()) != 32) {
return 0;
}
const AvxInterface *decoder = get_aom_decoder_by_name("av1");
if (decoder == nullptr) {
return 0;
}
aom_codec_ctx_t codec;
#if defined(DECODE_MODE)
const int threads = 1;
#elif defined(DECODE_MODE_threaded)
const int threads = 16;
#else
#error define one of DECODE_MODE or DECODE_MODE_threaded
#endif
aom_codec_dec_cfg_t cfg = {threads, 0, 0};
if (aom_codec_dec_init(&codec, decoder->codec_interface(), &cfg, 0)) {
return 0;
}
int frame_in_cnt = 0;
int frame_out_cnt = 0;
uint8_t *buffer = nullptr;
size_t buffer_size = 0;
size_t frame_size = 0;
while (!ivf_read_frame(file.get(), &buffer, &frame_size, &buffer_size,
nullptr)) {
const aom_codec_err_t err =
aom_codec_decode(&codec, buffer, frame_size, nullptr);
++frame_in_cnt;
aom_codec_iter_t iter = nullptr;
aom_image_t *img = nullptr;
while ((img = aom_codec_get_frame(&codec, &iter)) != nullptr) {
++frame_out_cnt;
}
}
aom_codec_destroy(&codec);
free(buffer);
return 0;
}
MOZ_FUZZING_INTERFACE_RAW(nullptr, LLVMFuzzerTestOneInput, AV1Decode);
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