Project: opus

Language c++
OSS-Fuzz project link
Project repository link
Build status: Fuzzers succeeding: Build log
Build status: Code coverage succeeding: Build log
Build status: Fuzz Introspector succeeding: Build log
Fuzzer count 24
Lines of code 27563
Lines covered 23083
Code coverage 83.75%
Code coverage report Report link
Static reachability 87.37%
Fuzz Introspector report Report link (from 2025-05-21)
Fuzzer Code coverage (lines) Latest Report Comments
opus_multistream_decode_fuzzer_fixed 66.98% (avg: 66.78%, max: 66.98%) 2025-05-21
opus_multistream_decode_fuzzer_fixed_qext 67.53% (avg: 67.3%, max: 67.53%) 2025-05-21
opus_multistream_decode_fuzzer_floating 66.97% (avg: 66.91%, max: 66.97%) 2025-05-21
opus_multistream_decode_fuzzer_floating_qext 67.99% (avg: 67.86%, max: 67.99%) 2025-05-21
opus_multistream_encode_fuzzer_fixed 67.91% (avg: 67.98%, max: 68.0%) 2025-05-21
opus_multistream_encode_fuzzer_fixed_qext 65.8% (avg: 65.92%, max: 65.97%) 2025-05-21
opus_multistream_encode_fuzzer_floating 64.94% (avg: 64.99%, max: 65.0%) 2025-05-21
opus_multistream_encode_fuzzer_floating_qext 62.85% (avg: 62.94%, max: 62.99%) 2025-05-21
opus_projection_decoder_fuzzer_fixed 66.2% (avg: 66.03%, max: 66.2%) 2025-05-21
opus_projection_decoder_fuzzer_fixed_qext 66.8% (avg: 66.57%, max: 66.8%) 2025-05-21
opus_projection_decoder_fuzzer_floating 66.16% (avg: 66.1%, max: 66.16%) 2025-05-21
opus_projection_decoder_fuzzer_floating_qext 67.23% (avg: 67.1%, max: 67.23%) 2025-05-21
opus_projection_encoder_fuzzer_fixed 65.14% (avg: 65.21%, max: 65.23%) 2025-05-21
opus_projection_encoder_fuzzer_fixed_qext 63.2% (avg: 63.31%, max: 63.37%) 2025-05-21
opus_projection_encoder_fuzzer_floating 62.08% (avg: 62.12%, max: 62.13%) 2025-05-21
opus_projection_encoder_fuzzer_floating_qext 60.42% (avg: 60.5%, max: 60.54%) 2025-05-21
opus_repacketizer_fuzzer_fixed 7.87% (avg: 7.9%, max: 7.91%) 2025-05-21
opus_repacketizer_fuzzer_fixed_qext 7.09% (avg: 7.13%, max: 7.14%) 2025-05-21
opus_repacketizer_fuzzer_floating 8.29% (avg: 8.3%, max: 8.3%) 2025-05-21
opus_repacketizer_fuzzer_floating_qext 7.44% (avg: 7.47%, max: 7.48%) 2025-05-21

Historical Progression

Per Fuzzer Progression

Functions of interest to fuzz

This section outlines functions that may be of interest to fuzz. They are based on ranking functions that have a lot of complexity but currently exhibit low code coverage. The complexity is calculated based on the function itself as well as the functions called by the given function, i.e. the tree of code that the function triggers.


This is only a minor amount of introspection information available for this project. Please consult the Fuzz Introspector report for more information, e.g. the introspection table of all functions in the target project available here.

Function name Function source file Accumulated cyclomatic complexity Code coverage
opus_projection_encode_float /src/opus/src/opus_projection_encoder.c 3871 0.0%
opus_projection_encode24 /src/opus/src/opus_projection_encoder.c 3871 0.0%
opus_multistream_encode_float /src/opus/src/opus_multistream_encoder.c 3860 0.0%
opus_multistream_encode24 /src/opus/src/opus_multistream_encoder.c 3860 0.0%
opus_encode24 /src/opus/src/opus_encoder.c 3567 0.0%
opus_encode /src/opus/src/opus_encoder.c 3567 0.0%
opus_encode_float /src/opus/src/opus_encoder.c 3565 0.0%
opus_projection_decode24 /src/opus/src/opus_projection_decoder.c 2134 0.0%
opus_multistream_decode24 /src/opus/src/opus_multistream_decoder.c 1862 0.0%
opus_decode /src/opus/src/opus_decoder.c 1759 0.0%