Erik de Castro Lopo | e0f7e0e | 2019-11-17 16:15:51 +1100 | [diff] [blame] | 1 | #include <cstddef> |
| 2 | #include <cstdint> |
| 3 | #include <limits> |
| 4 | |
| 5 | #include <fuzzing/datasource/datasource.hpp> |
| 6 | #include <fuzzing/memory.hpp> |
| 7 | |
| 8 | #include "FLAC++/encoder.h" |
| 9 | |
| 10 | #define SAMPLE_VALUE_LIMIT (1024*1024*10) |
| 11 | |
| 12 | static_assert(SAMPLE_VALUE_LIMIT <= std::numeric_limits<FLAC__int32>::max(), "Invalid SAMPLE_VALUE_LIMIT"); |
| 13 | static_assert(-SAMPLE_VALUE_LIMIT >= std::numeric_limits<FLAC__int32>::min(), "Invalid SAMPLE_VALUE_LIMIT"); |
| 14 | |
| 15 | namespace FLAC { |
| 16 | namespace Encoder { |
| 17 | class FuzzerStream : public Stream { |
| 18 | private: |
| 19 | // fuzzing::datasource::Datasource& ds; |
| 20 | public: |
| 21 | FuzzerStream(fuzzing::datasource::Datasource&) : |
| 22 | Stream() { } |
| 23 | |
| 24 | ::FLAC__StreamEncoderWriteStatus write_callback(const FLAC__byte buffer[], size_t bytes, uint32_t /* samples */, uint32_t /* current_frame */) override { |
| 25 | fuzzing::memory::memory_test(buffer, bytes); |
| 26 | #if 0 |
| 27 | try { |
| 28 | if ( ds.Get<bool>() == true ) { |
| 29 | return FLAC__STREAM_ENCODER_WRITE_STATUS_FATAL_ERROR; |
| 30 | } |
| 31 | } catch ( ... ) { } |
| 32 | #endif |
| 33 | return FLAC__STREAM_ENCODER_WRITE_STATUS_OK; |
| 34 | } |
| 35 | }; |
| 36 | } |
| 37 | } |
| 38 | |
| 39 | extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) { |
| 40 | fuzzing::datasource::Datasource ds(data, size); |
| 41 | FLAC::Encoder::FuzzerStream encoder(ds); |
| 42 | |
| 43 | const int channels = 2; |
| 44 | encoder.set_channels(channels); |
| 45 | encoder.set_bits_per_sample(16); |
| 46 | |
| 47 | try { |
| 48 | ::FLAC__StreamEncoderInitStatus ret; |
| 49 | |
| 50 | if ( ds.Get<bool>() ) { |
| 51 | ret = encoder.init(); |
| 52 | } else { |
| 53 | ret = encoder.init_ogg(); |
| 54 | } |
| 55 | |
| 56 | if ( ret != FLAC__STREAM_ENCODER_INIT_STATUS_OK ) { |
| 57 | goto end; |
| 58 | } |
| 59 | |
| 60 | { |
| 61 | const bool res = encoder.set_streamable_subset(ds.Get<bool>()); |
| 62 | fuzzing::memory::memory_test(res); |
| 63 | } |
| 64 | { |
| 65 | const bool res = encoder.set_ogg_serial_number(ds.Get<long>()); |
| 66 | fuzzing::memory::memory_test(res); |
| 67 | } |
| 68 | { |
| 69 | const bool res = encoder.set_verify(ds.Get<bool>()); |
| 70 | fuzzing::memory::memory_test(res); |
| 71 | } |
| 72 | { |
| 73 | const bool res = encoder.set_compression_level(ds.Get<uint8_t>()); |
| 74 | fuzzing::memory::memory_test(res); |
| 75 | } |
| 76 | { |
| 77 | const bool res = encoder.set_do_exhaustive_model_search(ds.Get<bool>()); |
| 78 | fuzzing::memory::memory_test(res); |
| 79 | } |
| 80 | { |
| 81 | const bool res = encoder.set_do_mid_side_stereo(ds.Get<bool>()); |
| 82 | fuzzing::memory::memory_test(res); |
| 83 | } |
| 84 | { |
| 85 | const bool res = encoder.set_loose_mid_side_stereo(ds.Get<bool>()); |
| 86 | fuzzing::memory::memory_test(res); |
| 87 | } |
| 88 | { |
| 89 | const auto s = ds.Get<std::string>(); |
| 90 | const bool res = encoder.set_apodization(s.data()); |
| 91 | fuzzing::memory::memory_test(res); |
| 92 | } |
| 93 | { |
| 94 | const bool res = encoder.set_max_lpc_order(ds.Get<uint8_t>()); |
| 95 | fuzzing::memory::memory_test(res); |
| 96 | } |
| 97 | { |
| 98 | const bool res = encoder.set_qlp_coeff_precision(ds.Get<uint32_t>()); |
| 99 | fuzzing::memory::memory_test(res); |
| 100 | } |
| 101 | { |
| 102 | const bool res = encoder.set_do_qlp_coeff_prec_search(ds.Get<bool>()); |
| 103 | fuzzing::memory::memory_test(res); |
| 104 | } |
| 105 | { |
| 106 | const bool res = encoder.set_do_escape_coding(ds.Get<bool>()); |
| 107 | fuzzing::memory::memory_test(res); |
| 108 | } |
| 109 | { |
| 110 | const bool res = encoder.set_min_residual_partition_order(ds.Get<uint32_t>()); |
| 111 | fuzzing::memory::memory_test(res); |
| 112 | } |
| 113 | { |
| 114 | const bool res = encoder.set_max_residual_partition_order(ds.Get<uint32_t>()); |
| 115 | fuzzing::memory::memory_test(res); |
| 116 | } |
| 117 | { |
| 118 | const bool res = encoder.set_rice_parameter_search_dist(ds.Get<uint32_t>()); |
| 119 | fuzzing::memory::memory_test(res); |
| 120 | } |
| 121 | { |
| 122 | const bool res = encoder.set_total_samples_estimate(ds.Get<uint64_t>()); |
| 123 | fuzzing::memory::memory_test(res); |
| 124 | } |
| 125 | |
| 126 | while ( ds.Get<bool>() ) { |
| 127 | { |
| 128 | auto dat = ds.GetVector<FLAC__int32>(); |
| 129 | for (size_t i = 0; i < dat.size(); i++) { |
| 130 | if ( SAMPLE_VALUE_LIMIT != 0 ) { |
| 131 | if ( dat[i] < -SAMPLE_VALUE_LIMIT ) { |
| 132 | dat[i] = -SAMPLE_VALUE_LIMIT; |
| 133 | } else if ( dat[i] > SAMPLE_VALUE_LIMIT ) { |
| 134 | dat[i] = SAMPLE_VALUE_LIMIT; |
| 135 | } |
| 136 | } |
| 137 | } |
| 138 | const uint32_t samples = dat.size() / 2; |
| 139 | if ( samples > 0 ) { |
| 140 | const int32_t* ptr = dat.data(); |
| 141 | const bool res = encoder.process_interleaved(ptr, samples); |
| 142 | fuzzing::memory::memory_test(res); |
| 143 | } |
| 144 | } |
| 145 | } |
| 146 | } catch ( ... ) { } |
| 147 | |
| 148 | end: |
| 149 | { |
| 150 | const bool res = encoder.finish(); |
| 151 | fuzzing::memory::memory_test(res); |
| 152 | } |
| 153 | return 0; |
| 154 | } |