Project: openh264

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 1
Lines of code 19137
Lines covered 14631
Code coverage 76.45%
Code coverage report Report link
Static reachability 0.92%
Fuzz Introspector report Report link (from 2025-03-27)
Fuzzer Code coverage (lines) Latest Report Comments
decoder_fuzzer 76.45% (avg: 76.48%, max: 76.54%) 2025-03-27

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
WelsDec::CWelsDecoder::ThreadDecodeFrameInternal(unsignedcharconst*,int,unsignedchar**,TagBufferInfo*) /src/openh264/codec/decoder/plus/src/welsDecoderExt.cpp 2758 0.0%
WelsDec::CWelsDecoder::ParseAccessUnit(WelsDec::tagSWelsDecThreadCtx&) /src/openh264/codec/decoder/plus/src/welsDecoderExt.cpp 2749 0.0%
WelsDec::pThrProcFrame(void*) /src/openh264/codec/decoder/plus/src/welsDecoderExt.cpp 2744 0.0%
WelsDec::ConstructAccessUnit(WelsDec::CWelsDecoder*,WelsDec::tagSWelsDecThreadCtx*) /src/openh264/codec/decoder/plus/src/welsDecoderExt.cpp 2740 0.0%
WelsDec::CWelsDecoder::DecodeParser(unsignedcharconst*,int,TagParserBsInfo*) /src/openh264/codec/decoder/plus/src/welsDecoderExt.cpp 2643 0.0%
WelsDec::DoMbECMvCopy(WelsDec::TagWelsDecoderContext*,WelsDec::SPicture*,WelsDec::SPicture*,int,int,int,WelsDec::TagMCRefMember*) /src/openh264/codec/decoder/core/src/error_concealment.cpp 61 0.0%
WelsDec::CWelsDecoder::CloseDecoderThreads() /src/openh264/codec/decoder/plus/src/welsDecoderExt.cpp 60 15.0%
WelsDec::CWelsDecoder::GetOption(DECODER_OPTION,void*) /src/openh264/codec/decoder/plus/src/welsDecoderExt.cpp 55 0.0%
WelsDec::CWelsDecoder::OpenDecoderThreads() /src/openh264/codec/decoder/plus/src/welsDecoderExt.cpp 51 10.0%
WelsDec::CWelsDecoder::FlushFrame(unsignedchar**,TagBufferInfo*) /src/openh264/codec/decoder/plus/src/welsDecoderExt.cpp 50 0.0%