mirror of https://github.com/google/oss-fuzz.git
90 lines
2.8 KiB
C++
90 lines
2.8 KiB
C++
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// Copyright 2021 Google LLC
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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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#include <fuzzer/FuzzedDataProvider.h>
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#include <stddef.h>
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#include <algorithm>
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#include <memory>
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#include <random>
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#include "../celt/mathops.h"
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#include "../celt/os_support.h"
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#include "opus.h"
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#include "opus_defines.h"
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#include "opus_multistream.h"
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#include "opus_projection.h"
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#include "opus_types.h"
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extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
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FuzzedDataProvider fdp(data, size);
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const int frame_size_ms_x2 =
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fdp.PickValueInArray({5, 10, 20, 40, 80, 120, 160, 200, 240});
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const opus_int32 frequency = fdp.PickValueInArray({8, 12, 16, 24, 48}) * 1000;
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const int frame_size = frame_size_ms_x2 * frequency / 2000;
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const opus_int32 nb_channels = fdp.ConsumeIntegralInRange(0, 255);
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const int streams = fdp.ConsumeIntegralInRange(0, 255);
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const int coupled_streams = fdp.ConsumeIntegralInRange(0, 255);
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const bool use_fec = fdp.ConsumeBool();
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const bool use_float = fdp.ConsumeBool();
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unsigned char *mapping = (unsigned char *)malloc(nb_channels);
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if (!mapping) {
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return 0;
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}
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for (unsigned char x = 0; x < nb_channels; ++x) {
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mapping[x] = fdp.ConsumeIntegralInRange(0, 255);
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}
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int err = OPUS_OK;
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OpusMSDecoder *const decoder = opus_multistream_decoder_create(
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frequency, nb_channels, streams, coupled_streams, mapping, &err);
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free(mapping);
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if (decoder == nullptr || err != OPUS_OK) {
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return 0;
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}
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auto payload = fdp.ConsumeRemainingBytes<unsigned char>();
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const opus_int16 payload_size =
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std::min((const unsigned long)SHRT_MAX, payload.size());
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if (use_float) {
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float *pcm = (float *)opus_alloc(sizeof(float) * frame_size * nb_channels);
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if (pcm == NULL) {
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goto end;
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}
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const int foo = opus_multistream_decode_float(
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decoder, payload.data(), payload_size, pcm, frame_size, use_fec);
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(void)foo;
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opus_free(pcm);
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} else {
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opus_int16 *pcm =
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(opus_int16 *)opus_alloc(sizeof(opus_int16) * frame_size * nb_channels);
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if (pcm == NULL) {
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goto end;
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}
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const int foo = opus_multistream_decode(
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decoder, payload.data(), payload_size, pcm, frame_size, use_fec);
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(void)foo;
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opus_free(pcm);
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}
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end:
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opus_multistream_decoder_destroy(decoder);
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return 0;
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}
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