mirror of https://github.com/google/oss-fuzz.git
95 lines
3.5 KiB
C++
95 lines
3.5 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 <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_types.h"
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#include "opus_defines.h"
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#define MAX_PACKET (1500)
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#define SAMPLES (48000 * 10)
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#define MAX_FRAME_SAMP (5760)
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static const int sampling_rates[] = {8000, 12000, 16000, 24000, 48000};
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static const int channels[] = {1, 2};
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static const int applications[] = {OPUS_APPLICATION_AUDIO,
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OPUS_APPLICATION_VOIP,
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OPUS_APPLICATION_RESTRICTED_LOWDELAY};
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static const int frame_sizes_ms_x2[] = {5, 10, 20, 40, 80, 120, 160, 200, 240};
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static opus_int16 inbuf[sizeof(opus_int16) * SAMPLES] = {0};
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static unsigned char packet[MAX_PACKET + 257];
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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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int err = OPUS_OK;
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int num_channels = fdp.PickValueInArray(channels);
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int frame_size = fdp.PickValueInArray(frame_sizes_ms_x2);
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int sampling_rate = fdp.PickValueInArray(sampling_rates);
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int application = fdp.PickValueInArray(applications);
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OpusEncoder *enc =
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opus_encoder_create(sampling_rate, num_channels, application, &err);
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if (err != OPUS_OK || enc == NULL) {
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opus_encoder_destroy(enc);
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return 0;
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}
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opus_encoder_ctl(enc, OPUS_SET_COMPLEXITY(fdp.ConsumeIntegralInRange(0, 10)));
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opus_encoder_ctl(enc, OPUS_SET_VBR(fdp.ConsumeBool()));
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opus_encoder_ctl(enc, OPUS_SET_VBR_CONSTRAINT(fdp.ConsumeBool()));
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opus_encoder_ctl(
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enc, OPUS_SET_FORCE_CHANNELS(fdp.PickValueInArray({OPUS_AUTO, 1, 2})));
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opus_encoder_ctl(enc,
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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_encoder_ctl(enc, OPUS_SET_INBAND_FEC(fdp.ConsumeBool()));
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opus_encoder_ctl(
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enc, OPUS_SET_PACKET_LOSS_PERC(fdp.ConsumeIntegralInRange(0, 100)));
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opus_encoder_ctl(enc, OPUS_SET_DTX(fdp.ConsumeBool()));
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opus_encoder_ctl(enc, OPUS_SET_LSB_DEPTH(fdp.ConsumeIntegralInRange(8, 24)));
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opus_encoder_ctl(enc, OPUS_SET_PREDICTION_DISABLED((fdp.ConsumeBool())));
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opus_encoder_ctl(enc,
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OPUS_SET_SIGNAL(fdp.PickValueInArray(
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{OPUS_AUTO, OPUS_SIGNAL_VOICE, OPUS_SIGNAL_MUSIC})));
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opus_encoder_ctl(enc,
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OPUS_SET_PHASE_INVERSION_DISABLED(((fdp.ConsumeBool()))));
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fdp.ConsumeData(inbuf, sizeof(inbuf));
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size_t samp_count = 0;
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do {
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const int frame_size_samples = frame_size * sampling_rate / 2000;
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const int len = opus_encode(enc, &inbuf[samp_count * num_channels],
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frame_size_samples, packet, MAX_PACKET);
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if (len < 0 || len > MAX_PACKET) {
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break;
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}
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samp_count += frame_size;
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} while (samp_count < ((SAMPLES / 2) - MAX_FRAME_SAMP));
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opus_encoder_destroy(enc);
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return 0;
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}
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