mirror of https://github.com/google/oss-fuzz.git
114 lines
4.2 KiB
C++
114 lines
4.2 KiB
C++
// 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 <math.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <string.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_types.h"
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#include "../celt/os_support.h"
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#define MAX_PACKET (1500)
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static unsigned char out[MAX_PACKET];
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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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opus_int32 nb_channels = fdp.ConsumeIntegralInRange(0, 255);
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const opus_int32 frequency = fdp.PickValueInArray({8, 12, 16, 24, 48}) * 1000;
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int streams = fdp.ConsumeIntegralInRange(0, 255);
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int coupled_streams = fdp.ConsumeIntegralInRange(0, 255);
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int frame_size_ms_x2 =
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fdp.PickValueInArray({5, 10, 20, 40, 80, 120, 160, 200, 240});
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int frame_size = frame_size_ms_x2 * frequency / 2000;
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int application =
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fdp.PickValueInArray({OPUS_APPLICATION_AUDIO, OPUS_APPLICATION_VOIP,
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OPUS_APPLICATION_RESTRICTED_LOWDELAY});
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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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OpusMSEncoder *enc = NULL;
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if (fdp.ConsumeBool()) {
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int mapping_family = fdp.PickValueInArray({0, 1, 2, 3, 255});
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enc = opus_multistream_surround_encoder_create(
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frequency, nb_channels, mapping_family, &streams, &coupled_streams,
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mapping, application, &err);
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} else {
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enc = opus_multistream_encoder_create(frequency, nb_channels, streams,
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coupled_streams, mapping, application,
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&err);
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}
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free(mapping);
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if (err != OPUS_OK || enc == NULL) {
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opus_multistream_encoder_destroy(enc);
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return 0;
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}
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opus_multistream_encoder_ctl(
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enc, OPUS_SET_COMPLEXITY(fdp.ConsumeIntegralInRange(0, 10)));
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opus_multistream_encoder_ctl(enc, OPUS_SET_VBR(fdp.ConsumeBool()));
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opus_multistream_encoder_ctl(enc, OPUS_SET_VBR_CONSTRAINT(fdp.ConsumeBool()));
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opus_multistream_encoder_ctl(
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enc, OPUS_SET_FORCE_CHANNELS(fdp.PickValueInArray({OPUS_AUTO, 1, 2})));
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opus_multistream_encoder_ctl(
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enc, OPUS_SET_MAX_BANDWIDTH(fdp.PickValueInArray(
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{OPUS_BANDWIDTH_NARROWBAND, OPUS_BANDWIDTH_MEDIUMBAND,
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OPUS_BANDWIDTH_WIDEBAND, OPUS_BANDWIDTH_SUPERWIDEBAND,
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OPUS_BANDWIDTH_FULLBAND})));
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opus_multistream_encoder_ctl(enc, OPUS_SET_INBAND_FEC(fdp.ConsumeBool()));
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opus_multistream_encoder_ctl(
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enc, OPUS_SET_PACKET_LOSS_PERC(fdp.ConsumeIntegralInRange(0, 100)));
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opus_multistream_encoder_ctl(enc, OPUS_SET_DTX(fdp.ConsumeBool()));
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opus_multistream_encoder_ctl(
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enc, OPUS_SET_LSB_DEPTH(fdp.ConsumeIntegralInRange(8, 24)));
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opus_multistream_encoder_ctl(
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enc, OPUS_SET_PREDICTION_DISABLED((fdp.ConsumeBool())));
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opus_multistream_encoder_ctl(
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enc, OPUS_SET_SIGNAL(fdp.PickValueInArray(
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{OPUS_AUTO, OPUS_SIGNAL_VOICE, OPUS_SIGNAL_MUSIC})));
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opus_multistream_encoder_ctl(
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enc, OPUS_SET_PHASE_INVERSION_DISABLED(((fdp.ConsumeBool()))));
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const int pcm_size = sizeof(opus_int16) * frame_size * nb_channels;
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opus_int16 *pcm = (opus_int16 *)opus_alloc(pcm_size);
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if (pcm == NULL) {
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opus_multistream_encoder_destroy(enc);
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return 0;
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}
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memset(pcm, 0, pcm_size);
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if (pcm_size == fdp.ConsumeData(pcm, pcm_size)) {
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const int len =
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opus_multistream_encode(enc, pcm, frame_size, out, MAX_PACKET);
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(void)len;
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}
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opus_free(pcm);
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opus_multistream_encoder_destroy(enc);
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return 0;
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}
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