High level conclusions

Fuzzers reach 87.48% of cyclomatic complexity.

Fuzzers reach 81.67% of all functions.

Fuzzers reach 85.63% code coverage.

Fuzzer opus_encode_fuzzer_floating_qext is blocked:

The runtime code coverage of opus_encode_fuzzer_floating_qext covers 0.0% of its statically reachable code. This means there is some place that blocks the fuzzer to continue exploring more code at run time.

Fuzzer opus_encode_fuzzer_fixed is blocked:

The runtime code coverage of opus_encode_fuzzer_fixed covers 0.0% of its statically reachable code. This means there is some place that blocks the fuzzer to continue exploring more code at run time.

Fuzzer opus_projection_encoder_fuzzer_fixed is blocked:

The runtime code coverage of opus_projection_encoder_fuzzer_fixed covers 0.0% of its statically reachable code. This means there is some place that blocks the fuzzer to continue exploring more code at run time.

Fuzzer opus_multistream_encode_fuzzer_floating_qext is blocked:

The runtime code coverage of opus_multistream_encode_fuzzer_floating_qext covers 0.0% of its statically reachable code. This means there is some place that blocks the fuzzer to continue exploring more code at run time.

Fuzzer opus_encode_fuzzer_fixed_qext is blocked:

The runtime code coverage of opus_encode_fuzzer_fixed_qext covers 0.0% of its statically reachable code. This means there is some place that blocks the fuzzer to continue exploring more code at run time.

Fuzzer opus_encode_fuzzer_floating is blocked:

The runtime code coverage of opus_encode_fuzzer_floating covers 0.0% of its statically reachable code. This means there is some place that blocks the fuzzer to continue exploring more code at run time.

Fuzzer opus_multistream_encode_fuzzer_fixed is blocked:

The runtime code coverage of opus_multistream_encode_fuzzer_fixed covers 0.0% of its statically reachable code. This means there is some place that blocks the fuzzer to continue exploring more code at run time.

Reachability and coverage overview

Functions statically reachable by fuzzers

557 / 682

Cyclomatic complexity statically reachable by fuzzers

5846 / 6682

Runtime code coverage of functions

584 / 682

Warning: The number of runtime covered functions are larger than the number of reachable functions. This means that Fuzz Introspector found there are more functions covered at runtime than what is considered reachable based on the static analysis. This is a limitation in the analysis as anything covered at runtime is by definition reachable by the fuzzers.
This is likely due to a limitation in the static analysis. In this case, the count of functions covered at runtime is the true value, which means this is what should be considered "achieved" by the fuzzer.

Use the project functions table below to query all functions that were not covered at runtime.

The following table shows data about each function in the project. The functions included in this table correspond to all functions that exist in the executables of the fuzzers. As such, there may be functions that are from third-party libraries.

For further technical details on the meaning of columns in the below table, please see the Glossary .

Func name	Functions filename	Args	Function call depth	Reached by Fuzzers	Runtime reached by Fuzzers	Combined reached by Fuzzers	Fuzzers runtime hit	Func lines hit %	I Count	BB Count	Cyclomatic complexity	Functions reached	Reached by functions	Accumulated cyclomatic complexity	Undiscovered complexity

Fuzzer: opus_repacketizer_fuzzer_floating_qext

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	4	7.27%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	51	92.7%
All colors	55	100

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity	Unique Reachable Complexities	Unique Reachable Functions	All non-covered Complexity	All Reachable Complexity	Function Name	Function Callsite	Blocked Branch
18	114	4 : View List ['skip_extension', 'celt_fatal', 'skip_extension_payload', 'opus_extension_iterator_next']	18	114	opus_extension_iterator_next	call site: 00030	/src/opus/src/extensions.c:196
0	4	1 : View List ['parse_size']	0	4	opus_packet_parse_impl	call site: 00014	/src/opus/src/opus.c:342
0	2	1 : View List ['encode_size']	6	88	opus_repacketizer_out_range_impl	call site: 00049	/src/opus/src/repacketizer.c:294
0	0	None	6	288	opus_repacketizer_out_range_impl	call site: 00017	/src/opus/src/repacketizer.c:138
0	0	None	6	170	opus_repacketizer_out_range_impl	call site: 00039	/src/opus/src/repacketizer.c:222
0	0	None	6	73	opus_extension_iterator_next	call site: 00032	/src/opus/src/extensions.c:258
0	0	None	0	0	opus_extension_iterator_next	call site: 00025	/src/opus/src/extensions.c:161
0	0	None	0	0	opus_packet_extensions_parse	call site: 00038	/src/opus/src/extensions.c:357
0	0	None	0	0	opus_packet_extensions_generate	call site: 00042	/src/opus/src/extensions.c:564
0	0	None	0	0	opus_packet_extensions_generate	call site: 00043	/src/opus/src/extensions.c:591
0	0	None	0	0	opus_packet_extensions_generate	call site: 00048	/src/opus/src/extensions.c:619
0	0	None	0	0	skip_extension	call site: 00026	/src/opus/src/extensions.c:103

Runtime coverage analysis

Covered functions

26

Functions that are reachable but not covered

3

Reachable functions

30

Percentage of reachable functions covered

90.0%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
/src/opus/tests/opus_repacketizer_fuzzer.cc	2
/src/opus/src/repacketizer.c	8
/src/opus/./celt/os_support.h	2
/src/opus/src/opus.c	4
/src/opus/src/opus_decoder.c	1
/src/opus/src/extensions.c	9
/src/opus/celt/arch.h	1

Fuzzer: opus_repacketizer_fuzzer_fixed_qext

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	4	7.27%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	51	92.7%
All colors	55	100

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity	Unique Reachable Complexities	Unique Reachable Functions	All non-covered Complexity	All Reachable Complexity	Function Name	Function Callsite	Blocked Branch
18	114	4 : View List ['skip_extension', 'celt_fatal', 'skip_extension_payload', 'opus_extension_iterator_next']	18	114	opus_extension_iterator_next	call site: 00030	/src/opus/src/extensions.c:196
0	4	1 : View List ['parse_size']	0	4	opus_packet_parse_impl	call site: 00014	/src/opus/src/opus.c:342
0	2	1 : View List ['encode_size']	6	88	opus_repacketizer_out_range_impl	call site: 00049	/src/opus/src/repacketizer.c:294
0	0	None	6	288	opus_repacketizer_out_range_impl	call site: 00017	/src/opus/src/repacketizer.c:138
0	0	None	6	170	opus_repacketizer_out_range_impl	call site: 00039	/src/opus/src/repacketizer.c:222
0	0	None	6	73	opus_extension_iterator_next	call site: 00032	/src/opus/src/extensions.c:258
0	0	None	0	0	opus_extension_iterator_next	call site: 00025	/src/opus/src/extensions.c:161
0	0	None	0	0	opus_packet_extensions_parse	call site: 00038	/src/opus/src/extensions.c:357
0	0	None	0	0	opus_packet_extensions_generate	call site: 00048	/src/opus/src/extensions.c:619
0	0	None	0	0	skip_extension	call site: 00026	/src/opus/src/extensions.c:103
0	0	None	0	0	skip_extension	call site: 00026	/src/opus/src/extensions.c:107
0	0	None	0	0	write_extension_payload	call site: 00046	/src/opus/src/extensions.c:413

Runtime coverage analysis

Covered functions

26

Functions that are reachable but not covered

3

Reachable functions

30

Percentage of reachable functions covered

90.0%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
/src/opus/tests/opus_repacketizer_fuzzer.cc	2
/src/opus/src/repacketizer.c	8
/src/opus/./celt/os_support.h	2
/src/opus/src/opus.c	4
/src/opus/src/opus_decoder.c	1
/src/opus/src/extensions.c	9
/src/opus/celt/arch.h	1

Fuzzer: opus_repacketizer_fuzzer_fixed

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	4	7.27%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	51	92.7%
All colors	55	100

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity	Unique Reachable Complexities	Unique Reachable Functions	All non-covered Complexity	All Reachable Complexity	Function Name	Function Callsite	Blocked Branch
18	114	4 : View List ['skip_extension', 'celt_fatal', 'skip_extension_payload', 'opus_extension_iterator_next']	18	114	opus_extension_iterator_next	call site: 00030	/src/opus/src/extensions.c:196
0	4	1 : View List ['parse_size']	0	4	opus_packet_parse_impl	call site: 00014	/src/opus/src/opus.c:342
0	2	1 : View List ['encode_size']	6	88	opus_repacketizer_out_range_impl	call site: 00049	/src/opus/src/repacketizer.c:294
0	0	None	6	288	opus_repacketizer_out_range_impl	call site: 00017	/src/opus/src/repacketizer.c:138
0	0	None	6	170	opus_repacketizer_out_range_impl	call site: 00039	/src/opus/src/repacketizer.c:222
0	0	None	6	73	opus_extension_iterator_next	call site: 00032	/src/opus/src/extensions.c:258
0	0	None	0	0	opus_extension_iterator_next	call site: 00025	/src/opus/src/extensions.c:161
0	0	None	0	0	opus_packet_extensions_parse	call site: 00038	/src/opus/src/extensions.c:357
0	0	None	0	0	opus_packet_extensions_generate	call site: 00048	/src/opus/src/extensions.c:619
0	0	None	0	0	skip_extension	call site: 00026	/src/opus/src/extensions.c:103
0	0	None	0	0	skip_extension	call site: 00026	/src/opus/src/extensions.c:107
0	0	None	0	0	write_extension_payload	call site: 00046	/src/opus/src/extensions.c:413

Runtime coverage analysis

Covered functions

26

Functions that are reachable but not covered

3

Reachable functions

30

Percentage of reachable functions covered

90.0%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
/src/opus/tests/opus_repacketizer_fuzzer.cc	2
/src/opus/src/repacketizer.c	8
/src/opus/./celt/os_support.h	2
/src/opus/src/opus.c	4
/src/opus/src/opus_decoder.c	1
/src/opus/src/extensions.c	9
/src/opus/celt/arch.h	1

Fuzzer: opus_multistream_encode_fuzzer_fixed

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	1307	100.%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	0	0.0%
All colors	1307	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
1306	0	EP	call site: 00000	opus_multistream_encode

Runtime coverage analysis

Covered functions

0

Functions that are reachable but not covered

369

Reachable functions

369

Percentage of reachable functions covered

0.0%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
/src/opus/tests/opus_multistream_encode_fuzzer.cc	1
/src/opus/src/opus_multistream_encoder.c	23
/src/opus/celt/mathops.c	12
/src/opus/src/opus_encoder.c	21
/src/opus/silk/enc_API.c	4
/src/opus/src/opus_private.h	1
/src/opus/celt/celt_encoder.c	24
/src/opus/celt/modes.c	1
/src/opus/./celt/os_support.h	2
/src/opus/celt/x86/x86cpu.c	4
/src/opus/src/opus_multistream.c	4
/src/opus/silk/init_encoder.c	1
/src/opus/silk/lin2log.c	1
/src/opus/silk/Inlines.h	4
/src/opus/silk/macros.h	1
/src/opus/silk/SigProc_FIX.h	5
/src/opus/silk/VAD.c	1
/src/opus/celt/arch.h	1
/src/opus/celt/celt.c	4
/src/opus/src/analysis.c	8
/src/opus/tests/../celt/os_support.h	2
/src/opus/celt/mdct.c	1
/src/opus/celt/mathops.h	9
/src/opus/celt/kiss_fft.c	7
/src/opus/celt/bands.c	22
/src/opus/celt/quant_bands.c	6
/src/opus/./celt/mathops.h	7
/src/opus/src/repacketizer.c	7
/src/opus/./celt/float_cast.h	1
/src/opus/src/mlp.c	5
/src/opus/src/opus.c	4
/src/opus/src/opus_decoder.c	1
/src/opus/src/extensions.c	9
/src/opus/celt/entenc.c	14
/src/opus/silk/log2lin.c	1
/src/opus/./silk/typedef.h	1
/src/opus/silk/biquad_alt.c	2
/src/opus/silk/check_control_input.c	1
/src/opus/silk/control_codec.c	5
/src/opus/silk/resampler.c	2
/src/opus/silk/resampler_private_up2_HQ.c	2
/src/opus/silk/resampler_private_IIR_FIR.c	2
/src/opus/silk/resampler_private_down_FIR.c	2
/src/opus/silk/resampler_private_AR2.c	1
/src/opus/silk/control_audio_bandwidth.c	1
/src/opus/./silk/SigProc_FIX.h	5
/src/opus/silk/typedef.h	1
/src/opus/./celt/entcode.h	1
/src/opus/silk/stereo_encode_pred.c	2
/src/opus/silk/encode_indices.c	1
/src/opus/silk/NLSF_unpack.c	1
/src/opus/silk/encode_pulses.c	2
/src/opus/silk/shell_coder.c	3
/src/opus/silk/code_signs.c	1
/src/opus/silk/HP_variable_cutoff.c	1
/src/opus/silk/stereo_LR_to_MS.c	1
/src/opus/silk/stereo_find_predictor.c	1
/src/opus/silk/sum_sqr_shift.c	1
/src/opus/silk/inner_prod_aligned.c	1
/src/opus/silk/stereo_quant_pred.c	1
/src/opus/silk/fixed/encode_frame_FIX.c	3
/src/opus/silk/control_SNR.c	1
/src/opus/silk/LP_variable_cutoff.c	2
/src/opus/silk/fixed/find_pitch_lags_FIX.c	1
/src/opus/silk/fixed/apply_sine_window_FIX.c	1
/src/opus/silk/fixed/autocorr_FIX.c	1
/src/opus/celt/celt_lpc.c	2
/src/opus/celt/pitch.c	7
/src/opus/celt/pitch.h	2
/src/opus/silk/fixed/schur_FIX.c	1
/src/opus/./silk/macros.h	1
/src/opus/./silk/Inlines.h	5
/src/opus/silk/fixed/k2a_FIX.c	1
/src/opus/silk/bwexpander.c	1
/src/opus/silk/LPC_analysis_filter.c	1
/src/opus/silk/fixed/pitch_analysis_core_FIX.c	3
/src/opus/silk/resampler_down2.c	1
/src/opus/silk/resampler_down2_3.c	1
/src/opus/silk/fixed/vector_ops_FIX.c	2
/src/opus/silk/sort.c	3
/src/opus/silk/fixed/noise_shape_analysis_FIX.c	3
/src/opus/silk/sigm_Q15.c	1
/src/opus/silk/fixed/warped_autocorrelation_FIX.c	1
/src/opus/silk/fixed/schur64_FIX.c	1
/src/opus/silk/fixed/k2a_Q16_FIX.c	1
/src/opus/silk/bwexpander_32.c	1
/src/opus/silk/LPC_fit.c	1
/src/opus/silk/fixed/find_pred_coefs_FIX.c	1
/src/opus/silk/fixed/find_LTP_FIX.c	1
/src/opus/silk/fixed/corrMatrix_FIX.c	2
/src/opus/silk/quant_LTP_gains.c	1
/src/opus/silk/fixed/LTP_scale_ctrl_FIX.c	1
/src/opus/silk/fixed/LTP_analysis_filter_FIX.c	1
/src/opus/silk/fixed/find_LPC_FIX.c	1
/src/opus/silk/A2NLSF.c	4
/src/opus/silk/interpolate.c	1
/src/opus/silk/NLSF2A.c	2
/src/opus/silk/LPC_inv_pred_gain.c	2
/src/opus/silk/process_NLSFs.c	1
/src/opus/silk/NLSF_VQ_weights_laroia.c	1
/src/opus/silk/NLSF_encode.c	1
/src/opus/silk/NLSF_stabilize.c	1
/src/opus/silk/NLSF_VQ.c	1
/src/opus/silk/NLSF_del_dec_quant.c	1
/src/opus/silk/NLSF_decode.c	2
/src/opus/silk/fixed/residual_energy_FIX.c	1
/src/opus/silk/fixed/process_gains_FIX.c	1
/src/opus/silk/gain_quant.c	3
/src/opus/celt/entcode.h	6
/src/opus/celt/entcode.c	1
/src/opus/celt/laplace.c	2
/src/opus/celt/vq.c	13
/src/opus/celt/rate.c	2
/src/opus/celt/entdec.c	8
/src/opus/celt/rate.h	3
/src/opus/celt/cwrs.c	4

Fuzzer: opus_encode_fuzzer_floating

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	1098	100.%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	0	0.0%
All colors	1098	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
1097	0	EP	call site: 00000	opus_encode

Runtime coverage analysis

Covered functions

0

Functions that are reachable but not covered

335

Reachable functions

335

Percentage of reachable functions covered

0.0%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
/src/opus/tests/opus_encode_fuzzer.cc	1
/src/opus/src/opus_encoder.c	25
/src/opus/silk/enc_API.c	4
/src/opus/src/opus_private.h	1
/src/opus/celt/celt_encoder.c	22
/src/opus/celt/modes.c	1
/src/opus/./celt/os_support.h	2
/src/opus/celt/x86/x86cpu.c	4
/src/opus/silk/init_encoder.c	1
/src/opus/silk/lin2log.c	1
/src/opus/silk/Inlines.h	4
/src/opus/silk/macros.h	1
/src/opus/silk/SigProc_FIX.h	5
/src/opus/silk/VAD.c	1
/src/opus/celt/arch.h	2
/src/opus/celt/celt.c	3
/src/opus/src/analysis.c	7
/src/opus/./celt/mathops.h	3
/src/opus/celt/kiss_fft.c	6
/src/opus/./celt/arch.h	1
/src/opus/./celt/float_cast.h	2
/src/opus/src/mlp.c	5
/src/opus/celt/x86/pitch_sse.c	3
/src/opus/src/repacketizer.c	6
/src/opus/src/opus.c	4
/src/opus/src/opus_decoder.c	1
/src/opus/src/extensions.c	9
/src/opus/celt/entenc.c	14
/src/opus/silk/log2lin.c	1
/src/opus/./silk/typedef.h	1
/src/opus/silk/check_control_input.c	1
/src/opus/silk/control_codec.c	5
/src/opus/silk/resampler.c	2
/src/opus/./silk/float/SigProc_FLP.h	2
/src/opus/silk/resampler_private_up2_HQ.c	2
/src/opus/silk/resampler_private_IIR_FIR.c	2
/src/opus/silk/resampler_private_down_FIR.c	2
/src/opus/silk/resampler_private_AR2.c	1
/src/opus/silk/control_audio_bandwidth.c	1
/src/opus/./silk/SigProc_FIX.h	4
/src/opus/silk/typedef.h	1
/src/opus/./celt/entcode.h	1
/src/opus/silk/stereo_encode_pred.c	2
/src/opus/silk/encode_indices.c	1
/src/opus/silk/NLSF_unpack.c	1
/src/opus/silk/encode_pulses.c	2
/src/opus/silk/shell_coder.c	3
/src/opus/silk/code_signs.c	1
/src/opus/silk/HP_variable_cutoff.c	1
/src/opus/silk/stereo_LR_to_MS.c	1
/src/opus/silk/stereo_find_predictor.c	1
/src/opus/silk/sum_sqr_shift.c	1
/src/opus/silk/inner_prod_aligned.c	1
/src/opus/silk/stereo_quant_pred.c	1
/src/opus/silk/float/encode_frame_FLP.c	3
/src/opus/silk/control_SNR.c	1
/src/opus/silk/LP_variable_cutoff.c	2
/src/opus/silk/biquad_alt.c	1
/src/opus/silk/float/SigProc_FLP.h	5
/src/opus/silk/float/find_pitch_lags_FLP.c	1
/src/opus/silk/float/apply_sine_window_FLP.c	1
/src/opus/silk/float/autocorrelation_FLP.c	1
/src/opus/silk/float/schur_FLP.c	1
/src/opus/silk/float/k2a_FLP.c	1
/src/opus/silk/float/bwexpander_FLP.c	1
/src/opus/silk/float/LPC_analysis_filter_FLP.c	6
/src/opus/silk/float/pitch_analysis_core_FLP.c	3
/src/opus/silk/resampler_down2.c	1
/src/opus/silk/resampler_down2_3.c	1
/src/opus/silk/float/energy_FLP.c	1
/src/opus/silk/float/sort_FLP.c	1
/src/opus/silk/float/noise_shape_analysis_FLP.c	4
/src/opus/silk/float/warped_autocorrelation_FLP.c	1
/src/opus/silk/float/find_pred_coefs_FLP.c	1
/src/opus/silk/float/find_LTP_FLP.c	1
/src/opus/silk/float/corrMatrix_FLP.c	2
/src/opus/silk/float/scale_vector_FLP.c	1
/src/opus/silk/float/wrappers_FLP.c	5
/src/opus/silk/quant_LTP_gains.c	1
/src/opus/silk/float/LTP_scale_ctrl_FLP.c	1
/src/opus/silk/float/LTP_analysis_filter_FLP.c	1
/src/opus/silk/float/scale_copy_vector_FLP.c	1
/src/opus/silk/float/find_LPC_FLP.c	1
/src/opus/silk/float/burg_modified_FLP.c	1
/src/opus/silk/A2NLSF.c	4
/src/opus/silk/bwexpander_32.c	1
/src/opus/silk/interpolate.c	1
/src/opus/silk/NLSF2A.c	2
/src/opus/silk/LPC_fit.c	1
/src/opus/silk/LPC_inv_pred_gain.c	2
/src/opus/silk/process_NLSFs.c	1
/src/opus/silk/NLSF_VQ_weights_laroia.c	1
/src/opus/silk/NLSF_encode.c	1
/src/opus/silk/NLSF_stabilize.c	1
/src/opus/silk/sort.c	2
/src/opus/silk/NLSF_VQ.c	1
/src/opus/silk/NLSF_del_dec_quant.c	1
/src/opus/silk/NLSF_decode.c	2
/src/opus/silk/float/residual_energy_FLP.c	1
/src/opus/silk/float/process_gains_FLP.c	1
/src/opus/silk/gain_quant.c	3
/src/opus/celt/entcode.h	6
/src/opus/celt/entcode.c	1
/src/opus/celt/mathops.h	5
/src/opus/celt/pitch.c	6
/src/opus/celt/celt_lpc.c	2
/src/opus/celt/mdct.c	1
/src/opus/celt/bands.c	22
/src/opus/celt/quant_bands.c	6
/src/opus/celt/laplace.c	2
/src/opus/celt/rate.c	2
/src/opus/celt/entdec.c	8
/src/opus/celt/vq.c	8
/src/opus/celt/mathops.c	1
/src/opus/celt/rate.h	3
/src/opus/celt/x86/vq_sse2.c	1
/src/opus/celt/cwrs.c	4

Fuzzer: opus_multistream_decode_fuzzer_floating_qext

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	134	16.6%
gold	[1:9]	0	0.0%
yellow	[10:29]	5	0.62%
greenyellow	[30:49]	1	0.12%
lawngreen	50+	663	82.5%
All colors	803	100

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity	Unique Reachable Complexities	Unique Reachable Functions	All non-covered Complexity	All Reachable Complexity	Function Name	Function Callsite	Blocked Branch
137	137	1 : View List ['alg_quant']	137	137	quant_partition	call site: 00604	/src/opus/celt/bands.c:1116
55	55	2 : View List ['ec_enc_depth', 'median_of_5_val16']	55	57	clt_compute_extra_allocation	call site: 00495	/src/opus/celt/rate.c:770
53	53	2 : View List ['ec_enc_uint', 'stereo_itheta']	53	285	cubic_quant_partition	call site: 00545	/src/opus/celt/bands.c:1216
31	31	1 : View List ['ec_enc_uint']	70	79	interp_bits2pulses	call site: 00462	/src/opus/celt/rate.c:398
31	31	1 : View List ['ec_enc_uint']	38	60	compute_theta	call site: 00588	/src/opus/celt/bands.c:852
22	22	1 : View List ['stereo_itheta']	161	350	compute_theta	call site: 00563	/src/opus/celt/bands.c:739
22	22	1 : View List ['ec_encode']	66	156	compute_theta	call site: 00572	/src/opus/celt/bands.c:790
22	22	1 : View List ['ec_encode']	66	156	compute_theta	call site: 00577	/src/opus/celt/bands.c:812
18	114	4 : View List ['skip_extension', 'celt_fatal', 'skip_extension_payload', 'opus_extension_iterator_next']	18	114	opus_extension_iterator_next	call site: 00780	/src/opus/src/extensions.c:196
15	15	1 : View List ['ec_enc_bit_logp']	39	39	interp_bits2pulses	call site: 00472	/src/opus/celt/rate.c:415
15	15	1 : View List ['ec_enc_bit_logp']	15	35	compute_theta	call site: 00595	/src/opus/celt/bands.c:893
12	12	1 : View List ['ec_enc_bits']	12	468	quant_band_stereo	call site: 00689	/src/opus/celt/bands.c:1476

Runtime coverage analysis

Covered functions

216

Functions that are reachable but not covered

33

Reachable functions

249

Percentage of reachable functions covered

86.75%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
/src/opus/tests/opus_multistream_decode_fuzzer.cc	1
/src/opus/src/opus_multistream_decoder.c	13
/src/opus/src/opus_decoder.c	12
/src/opus/silk/dec_API.c	5
/src/opus/src/opus_private.h	1
/src/opus/celt/celt_decoder.c	15
/src/opus/celt/modes.c	2
/src/opus/./celt/os_support.h	2
/src/opus/src/opus_multistream.c	4
/src/opus/silk/init_decoder.c	2
/src/opus/celt/x86/x86cpu.c	4
/src/opus/silk/CNG.c	3
/src/opus/silk/PLC.c	6
/src/opus/celt/celt.c	3
/src/opus/celt/arch.h	1
/src/opus/tests/../celt/os_support.h	2
/src/opus/src/opus.c	4
/src/opus/celt/entdec.c	11
/src/opus/silk/decoder_set_fs.c	1
/src/opus/silk/resampler.c	2
/src/opus/silk/stereo_decode_pred.c	2
/src/opus/silk/decode_indices.c	1
/src/opus/silk/NLSF_unpack.c	1
/src/opus/silk/decode_pulses.c	1
/src/opus/silk/shell_coder.c	2
/src/opus/silk/code_signs.c	1
/src/opus/silk/decode_frame.c	1
/src/opus/silk/decode_parameters.c	1
/src/opus/silk/gain_quant.c	1
/src/opus/silk/SigProc_FIX.h	6
/src/opus/silk/log2lin.c	1
/src/opus/silk/NLSF_decode.c	2
/src/opus/silk/NLSF_stabilize.c	1
/src/opus/silk/typedef.h	1
/src/opus/silk/sort.c	1
/src/opus/silk/NLSF2A.c	2
/src/opus/silk/LPC_fit.c	1
/src/opus/silk/bwexpander_32.c	1
/src/opus/silk/LPC_inv_pred_gain.c	2
/src/opus/silk/macros.h	1
/src/opus/silk/Inlines.h	4
/src/opus/silk/bwexpander.c	1
/src/opus/silk/decode_pitch.c	1
/src/opus/silk/decode_core.c	1
/src/opus/silk/LPC_analysis_filter.c	1
/src/opus/silk/sum_sqr_shift.c	1
/src/opus/silk/stereo_MS_to_LR.c	1
/src/opus/silk/resampler_private_up2_HQ.c	2
/src/opus/silk/resampler_private_IIR_FIR.c	2
/src/opus/silk/resampler_private_down_FIR.c	2
/src/opus/silk/resampler_private_AR2.c	1
/src/opus/./celt/entcode.h	1
/src/opus/celt/entcode.h	4
/src/opus/celt/x86/pitch_sse.c	3
/src/opus/celt/bands.c	21
/src/opus/celt/vq.c	16
/src/opus/celt/mathops.h	4
/src/opus/celt/mdct.c	1
/src/opus/celt/kiss_fft.c	5
/src/opus/celt/pitch.c	4
/src/opus/celt/celt_lpc.c	4
/src/opus/celt/quant_bands.c	3
/src/opus/celt/laplace.c	2
/src/opus/celt/entcode.c	1
/src/opus/celt/rate.c	6
/src/opus/celt/entenc.c	9
/src/opus/celt/mathops.c	2
/src/opus/celt/rate.h	3
/src/opus/celt/cwrs.c	4
/src/opus/celt/x86/vq_sse2.c	1
/src/opus/./celt/mathops.h	1
/src/opus/./celt/stack_alloc.h	1
/src/opus/src/extensions.c	5
/src/opus/./celt/float_cast.h	2

Fuzzer: opus_projection_decoder_fuzzer_floating_qext

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	134	16.1%
gold	[1:9]	0	0.0%
yellow	[10:29]	2	0.24%
greenyellow	[30:49]	2	0.24%
lawngreen	50+	690	83.3%
All colors	828	100

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity	Unique Reachable Complexities	Unique Reachable Functions	All non-covered Complexity	All Reachable Complexity	Function Name	Function Callsite	Blocked Branch
137	137	1 : View List ['alg_quant']	137	137	quant_partition	call site: 00623	/src/opus/celt/bands.c:1116
55	55	2 : View List ['ec_enc_depth', 'median_of_5_val16']	55	57	clt_compute_extra_allocation	call site: 00514	/src/opus/celt/rate.c:770
53	53	2 : View List ['ec_enc_uint', 'stereo_itheta']	53	285	cubic_quant_partition	call site: 00564	/src/opus/celt/bands.c:1216
31	31	1 : View List ['ec_enc_uint']	70	79	interp_bits2pulses	call site: 00481	/src/opus/celt/rate.c:398
31	31	1 : View List ['ec_enc_uint']	38	60	compute_theta	call site: 00607	/src/opus/celt/bands.c:852
22	22	1 : View List ['stereo_itheta']	161	350	compute_theta	call site: 00582	/src/opus/celt/bands.c:739
22	22	1 : View List ['ec_encode']	66	156	compute_theta	call site: 00591	/src/opus/celt/bands.c:790
22	22	1 : View List ['ec_encode']	66	156	compute_theta	call site: 00596	/src/opus/celt/bands.c:812
18	114	4 : View List ['skip_extension', 'celt_fatal', 'skip_extension_payload', 'opus_extension_iterator_next']	18	114	opus_extension_iterator_next	call site: 00799	/src/opus/src/extensions.c:196
15	15	1 : View List ['ec_enc_bit_logp']	39	39	interp_bits2pulses	call site: 00491	/src/opus/celt/rate.c:415
15	15	1 : View List ['ec_enc_bit_logp']	15	35	compute_theta	call site: 00614	/src/opus/celt/bands.c:893
12	12	1 : View List ['ec_enc_bits']	12	468	quant_band_stereo	call site: 00708	/src/opus/celt/bands.c:1476

Runtime coverage analysis

Covered functions

225

Functions that are reachable but not covered

33

Reachable functions

258

Percentage of reachable functions covered

87.21%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
/src/opus/tests/opus_projection_decoder_fuzzer.cc	1
/src/opus/tests/../celt/os_support.h	2
/src/opus/src/opus_projection_decoder.c	10
/src/opus/src/mapping_matrix.c	5
/src/opus/src/opus_private.h	1
/src/opus/src/opus_multistream_decoder.c	7
/src/opus/src/opus_decoder.c	12
/src/opus/silk/dec_API.c	5
/src/opus/celt/celt_decoder.c	15
/src/opus/celt/modes.c	2
/src/opus/./celt/os_support.h	2
/src/opus/celt/arch.h	1
/src/opus/src/opus_multistream.c	4
/src/opus/silk/init_decoder.c	2
/src/opus/celt/x86/x86cpu.c	4
/src/opus/silk/CNG.c	3
/src/opus/silk/PLC.c	6
/src/opus/celt/celt.c	3
/src/opus/src/opus.c	4
/src/opus/celt/entdec.c	11
/src/opus/silk/decoder_set_fs.c	1
/src/opus/silk/resampler.c	2
/src/opus/silk/stereo_decode_pred.c	2
/src/opus/silk/decode_indices.c	1
/src/opus/silk/NLSF_unpack.c	1
/src/opus/silk/decode_pulses.c	1
/src/opus/silk/shell_coder.c	2
/src/opus/silk/code_signs.c	1
/src/opus/silk/decode_frame.c	1
/src/opus/silk/decode_parameters.c	1
/src/opus/silk/gain_quant.c	1
/src/opus/silk/SigProc_FIX.h	6
/src/opus/silk/log2lin.c	1
/src/opus/silk/NLSF_decode.c	2
/src/opus/silk/NLSF_stabilize.c	1
/src/opus/silk/typedef.h	1
/src/opus/silk/sort.c	1
/src/opus/silk/NLSF2A.c	2
/src/opus/silk/LPC_fit.c	1
/src/opus/silk/bwexpander_32.c	1
/src/opus/silk/LPC_inv_pred_gain.c	2
/src/opus/silk/macros.h	1
/src/opus/silk/Inlines.h	4
/src/opus/silk/bwexpander.c	1
/src/opus/silk/decode_pitch.c	1
/src/opus/silk/decode_core.c	1
/src/opus/silk/LPC_analysis_filter.c	1
/src/opus/silk/sum_sqr_shift.c	1
/src/opus/silk/stereo_MS_to_LR.c	1
/src/opus/silk/resampler_private_up2_HQ.c	2
/src/opus/silk/resampler_private_IIR_FIR.c	2
/src/opus/silk/resampler_private_down_FIR.c	2
/src/opus/silk/resampler_private_AR2.c	1
/src/opus/./celt/entcode.h	1
/src/opus/celt/entcode.h	4
/src/opus/celt/x86/pitch_sse.c	3
/src/opus/celt/bands.c	21
/src/opus/celt/vq.c	16
/src/opus/celt/mathops.h	4
/src/opus/celt/mdct.c	1
/src/opus/celt/kiss_fft.c	5
/src/opus/celt/pitch.c	4
/src/opus/celt/celt_lpc.c	4
/src/opus/celt/quant_bands.c	3
/src/opus/celt/laplace.c	2
/src/opus/celt/entcode.c	1
/src/opus/celt/rate.c	6
/src/opus/celt/entenc.c	9
/src/opus/celt/mathops.c	2
/src/opus/celt/rate.h	3
/src/opus/celt/cwrs.c	4
/src/opus/celt/x86/vq_sse2.c	1
/src/opus/./celt/mathops.h	1
/src/opus/./celt/stack_alloc.h	1
/src/opus/src/extensions.c	5
/src/opus/./celt/float_cast.h	2

Fuzzer: opus_projection_decoder_fuzzer_floating

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	100	13.9%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	618	86.0%
All colors	718	100

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity	Unique Reachable Complexities	Unique Reachable Functions	All non-covered Complexity	All Reachable Complexity	Function Name	Function Callsite	Blocked Branch
137	137	1 : View List ['alg_quant']	137	137	quant_partition	call site: 00560	/src/opus/celt/bands.c:1116
31	31	1 : View List ['ec_enc_uint']	70	79	interp_bits2pulses	call site: 00478	/src/opus/celt/rate.c:398
22	22	1 : View List ['stereo_itheta']	161	350	compute_theta	call site: 00520	/src/opus/celt/bands.c:739
22	22	1 : View List ['ec_encode']	66	156	compute_theta	call site: 00537	/src/opus/celt/bands.c:790
22	22	1 : View List ['ec_encode']	66	156	compute_theta	call site: 00542	/src/opus/celt/bands.c:812
15	15	1 : View List ['ec_enc_bit_logp']	39	39	interp_bits2pulses	call site: 00488	/src/opus/celt/rate.c:415
15	15	1 : View List ['ec_enc_bit_logp']	15	35	compute_theta	call site: 00553	/src/opus/celt/bands.c:893
12	12	1 : View List ['ec_enc_bits']	12	468	quant_band_stereo	call site: 00613	/src/opus/celt/bands.c:1476
7	7	2 : View List ['intensity_stereo', 'stereo_split']	7	27	compute_theta	call site: 00549	/src/opus/celt/bands.c:870
5	5	1 : View List ['intensity_stereo']	20	49	compute_theta	call site: 00552	/src/opus/celt/bands.c:880
0	50	1 : View List ['silk_resampler']	0	50	silk_Decode	call site: 00320	/src/opus/silk/dec_API.c:398
0	2	1 : View List ['celt_exp2']	0	4	opus_decode_frame	call site: 00133	/src/opus/src/opus_decoder.c:661

Runtime coverage analysis

Covered functions

213

Functions that are reachable but not covered

24

Reachable functions

237

Percentage of reachable functions covered

89.87%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
/src/opus/tests/opus_projection_decoder_fuzzer.cc	1
/src/opus/tests/../celt/os_support.h	2
/src/opus/src/opus_projection_decoder.c	10
/src/opus/src/mapping_matrix.c	5
/src/opus/src/opus_private.h	1
/src/opus/src/opus_multistream_decoder.c	7
/src/opus/src/opus_decoder.c	12
/src/opus/silk/dec_API.c	5
/src/opus/celt/celt_decoder.c	15
/src/opus/celt/modes.c	1
/src/opus/./celt/os_support.h	2
/src/opus/celt/arch.h	1
/src/opus/src/opus_multistream.c	4
/src/opus/silk/init_decoder.c	2
/src/opus/celt/x86/x86cpu.c	4
/src/opus/silk/CNG.c	3
/src/opus/silk/PLC.c	6
/src/opus/celt/celt.c	3
/src/opus/src/opus.c	4
/src/opus/celt/entdec.c	11
/src/opus/silk/decoder_set_fs.c	1
/src/opus/silk/resampler.c	2
/src/opus/silk/stereo_decode_pred.c	2
/src/opus/silk/decode_indices.c	1
/src/opus/silk/NLSF_unpack.c	1
/src/opus/silk/decode_pulses.c	1
/src/opus/silk/shell_coder.c	2
/src/opus/silk/code_signs.c	1
/src/opus/silk/decode_frame.c	1
/src/opus/silk/decode_parameters.c	1
/src/opus/silk/gain_quant.c	1
/src/opus/silk/SigProc_FIX.h	6
/src/opus/silk/log2lin.c	1
/src/opus/silk/NLSF_decode.c	2
/src/opus/silk/NLSF_stabilize.c	1
/src/opus/silk/typedef.h	1
/src/opus/silk/sort.c	1
/src/opus/silk/NLSF2A.c	2
/src/opus/silk/LPC_fit.c	1
/src/opus/silk/bwexpander_32.c	1
/src/opus/silk/LPC_inv_pred_gain.c	2
/src/opus/silk/macros.h	1
/src/opus/silk/Inlines.h	4
/src/opus/silk/bwexpander.c	1
/src/opus/silk/decode_pitch.c	1
/src/opus/silk/decode_core.c	1
/src/opus/silk/LPC_analysis_filter.c	1
/src/opus/silk/sum_sqr_shift.c	1
/src/opus/silk/stereo_MS_to_LR.c	1
/src/opus/silk/resampler_private_up2_HQ.c	2
/src/opus/silk/resampler_private_IIR_FIR.c	2
/src/opus/silk/resampler_private_down_FIR.c	2
/src/opus/silk/resampler_private_AR2.c	1
/src/opus/./celt/entcode.h	1
/src/opus/celt/entcode.h	4
/src/opus/celt/x86/pitch_sse.c	3
/src/opus/celt/bands.c	20
/src/opus/celt/vq.c	8
/src/opus/celt/mathops.h	3
/src/opus/celt/mdct.c	1
/src/opus/celt/kiss_fft.c	5
/src/opus/celt/pitch.c	4
/src/opus/celt/celt_lpc.c	4
/src/opus/celt/quant_bands.c	3
/src/opus/celt/laplace.c	2
/src/opus/celt/entcode.c	1
/src/opus/celt/rate.c	2
/src/opus/celt/entenc.c	8
/src/opus/celt/mathops.c	2
/src/opus/celt/rate.h	3
/src/opus/celt/x86/vq_sse2.c	1
/src/opus/celt/cwrs.c	4
/src/opus/./celt/mathops.h	1
/src/opus/./celt/stack_alloc.h	1
/src/opus/src/extensions.c	1
/src/opus/./celt/float_cast.h	2

Fuzzer: opus_repacketizer_fuzzer_floating

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	4	7.27%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	51	92.7%
All colors	55	100

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity	Unique Reachable Complexities	Unique Reachable Functions	All non-covered Complexity	All Reachable Complexity	Function Name	Function Callsite	Blocked Branch
18	114	4 : View List ['skip_extension', 'celt_fatal', 'skip_extension_payload', 'opus_extension_iterator_next']	18	114	opus_extension_iterator_next	call site: 00030	/src/opus/src/extensions.c:196
0	4	1 : View List ['parse_size']	0	4	opus_packet_parse_impl	call site: 00014	/src/opus/src/opus.c:342
0	2	1 : View List ['encode_size']	6	88	opus_repacketizer_out_range_impl	call site: 00049	/src/opus/src/repacketizer.c:294
0	0	None	6	288	opus_repacketizer_out_range_impl	call site: 00017	/src/opus/src/repacketizer.c:138
0	0	None	6	170	opus_repacketizer_out_range_impl	call site: 00039	/src/opus/src/repacketizer.c:222
0	0	None	6	73	opus_extension_iterator_next	call site: 00032	/src/opus/src/extensions.c:258
0	0	None	0	0	opus_extension_iterator_next	call site: 00025	/src/opus/src/extensions.c:161
0	0	None	0	0	opus_packet_extensions_parse	call site: 00038	/src/opus/src/extensions.c:357
0	0	None	0	0	opus_packet_extensions_generate	call site: 00048	/src/opus/src/extensions.c:619
0	0	None	0	0	skip_extension	call site: 00026	/src/opus/src/extensions.c:103
0	0	None	0	0	skip_extension	call site: 00026	/src/opus/src/extensions.c:107
0	0	None	0	0	write_extension_payload	call site: 00046	/src/opus/src/extensions.c:413

Runtime coverage analysis

Covered functions

26

Functions that are reachable but not covered

3

Reachable functions

30

Percentage of reachable functions covered

90.0%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
/src/opus/tests/opus_repacketizer_fuzzer.cc	2
/src/opus/src/repacketizer.c	8
/src/opus/./celt/os_support.h	2
/src/opus/src/opus.c	4
/src/opus/src/opus_decoder.c	1
/src/opus/src/extensions.c	9
/src/opus/celt/arch.h	1

Fuzzer: opus_encode_fuzzer_fixed_qext

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	1326	100.%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	0	0.0%
All colors	1326	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
1325	0	EP	call site: 00000	opus_encode

Runtime coverage analysis

Covered functions

0

Functions that are reachable but not covered

362

Reachable functions

362

Percentage of reachable functions covered

0.0%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
/src/opus/tests/opus_encode_fuzzer.cc	1
/src/opus/src/opus_encoder.c	25
/src/opus/silk/enc_API.c	4
/src/opus/src/opus_private.h	1
/src/opus/celt/celt_encoder.c	25
/src/opus/celt/modes.c	2
/src/opus/./celt/os_support.h	2
/src/opus/celt/x86/x86cpu.c	4
/src/opus/silk/init_encoder.c	1
/src/opus/silk/lin2log.c	1
/src/opus/silk/Inlines.h	4
/src/opus/silk/macros.h	1
/src/opus/silk/SigProc_FIX.h	5
/src/opus/silk/VAD.c	1
/src/opus/celt/arch.h	1
/src/opus/celt/celt.c	4
/src/opus/src/analysis.c	8
/src/opus/./celt/mathops.h	6
/src/opus/celt/kiss_fft.c	7
/src/opus/./celt/float_cast.h	1
/src/opus/src/mlp.c	5
/src/opus/./celt/arch.h	1
/src/opus/celt/mathops.c	13
/src/opus/celt/mathops.h	11
/src/opus/src/repacketizer.c	6
/src/opus/src/opus.c	4
/src/opus/src/opus_decoder.c	1
/src/opus/src/extensions.c	9
/src/opus/celt/entenc.c	14
/src/opus/silk/log2lin.c	1
/src/opus/./silk/typedef.h	1
/src/opus/silk/check_control_input.c	1
/src/opus/silk/control_codec.c	5
/src/opus/silk/resampler.c	2
/src/opus/silk/resampler_private_up2_HQ.c	2
/src/opus/silk/resampler_private_IIR_FIR.c	2
/src/opus/silk/resampler_private_down_FIR.c	2
/src/opus/silk/resampler_private_AR2.c	1
/src/opus/silk/control_audio_bandwidth.c	1
/src/opus/./silk/SigProc_FIX.h	5
/src/opus/silk/typedef.h	1
/src/opus/./celt/entcode.h	1
/src/opus/silk/stereo_encode_pred.c	2
/src/opus/silk/encode_indices.c	1
/src/opus/silk/NLSF_unpack.c	1
/src/opus/silk/encode_pulses.c	2
/src/opus/silk/shell_coder.c	3
/src/opus/silk/code_signs.c	1
/src/opus/silk/HP_variable_cutoff.c	1
/src/opus/silk/stereo_LR_to_MS.c	1
/src/opus/silk/stereo_find_predictor.c	1
/src/opus/silk/sum_sqr_shift.c	1
/src/opus/silk/inner_prod_aligned.c	1
/src/opus/silk/stereo_quant_pred.c	1
/src/opus/silk/fixed/encode_frame_FIX.c	3
/src/opus/silk/control_SNR.c	1
/src/opus/silk/LP_variable_cutoff.c	2
/src/opus/silk/biquad_alt.c	1
/src/opus/silk/fixed/find_pitch_lags_FIX.c	1
/src/opus/silk/fixed/apply_sine_window_FIX.c	1
/src/opus/silk/fixed/autocorr_FIX.c	1
/src/opus/celt/celt_lpc.c	2
/src/opus/celt/pitch.c	7
/src/opus/celt/pitch.h	2
/src/opus/silk/fixed/schur_FIX.c	1
/src/opus/./silk/macros.h	1
/src/opus/./silk/Inlines.h	5
/src/opus/silk/fixed/k2a_FIX.c	1
/src/opus/silk/bwexpander.c	1
/src/opus/silk/LPC_analysis_filter.c	1
/src/opus/silk/fixed/pitch_analysis_core_FIX.c	3
/src/opus/silk/resampler_down2.c	1
/src/opus/silk/resampler_down2_3.c	1
/src/opus/silk/fixed/vector_ops_FIX.c	2
/src/opus/silk/sort.c	3
/src/opus/silk/fixed/noise_shape_analysis_FIX.c	3
/src/opus/silk/sigm_Q15.c	1
/src/opus/silk/fixed/warped_autocorrelation_FIX.c	1
/src/opus/silk/fixed/schur64_FIX.c	1
/src/opus/silk/fixed/k2a_Q16_FIX.c	1
/src/opus/silk/bwexpander_32.c	1
/src/opus/silk/LPC_fit.c	1
/src/opus/silk/fixed/find_pred_coefs_FIX.c	1
/src/opus/silk/fixed/find_LTP_FIX.c	1
/src/opus/silk/fixed/corrMatrix_FIX.c	2
/src/opus/silk/quant_LTP_gains.c	1
/src/opus/silk/fixed/LTP_scale_ctrl_FIX.c	1
/src/opus/silk/fixed/LTP_analysis_filter_FIX.c	1
/src/opus/silk/fixed/find_LPC_FIX.c	1
/src/opus/silk/A2NLSF.c	4
/src/opus/silk/interpolate.c	1
/src/opus/silk/NLSF2A.c	2
/src/opus/silk/LPC_inv_pred_gain.c	2
/src/opus/silk/process_NLSFs.c	1
/src/opus/silk/NLSF_VQ_weights_laroia.c	1
/src/opus/silk/NLSF_encode.c	1
/src/opus/silk/NLSF_stabilize.c	1
/src/opus/silk/NLSF_VQ.c	1
/src/opus/silk/NLSF_del_dec_quant.c	1
/src/opus/silk/NLSF_decode.c	2
/src/opus/silk/fixed/residual_energy_FIX.c	1
/src/opus/silk/fixed/process_gains_FIX.c	1
/src/opus/silk/gain_quant.c	3
/src/opus/celt/entcode.h	6
/src/opus/celt/entcode.c	1
/src/opus/celt/mdct.c	1
/src/opus/celt/bands.c	23
/src/opus/celt/quant_bands.c	6
/src/opus/celt/laplace.c	2
/src/opus/celt/vq.c	21
/src/opus/celt/rate.c	6
/src/opus/celt/entdec.c	9
/src/opus/celt/rate.h	3
/src/opus/celt/cwrs.c	4

Fuzzer: opus_multistream_decode_fuzzer_fixed_qext

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	156	17.7%
gold	[1:9]	0	0.0%
yellow	[10:29]	3	0.34%
greenyellow	[30:49]	2	0.22%
lawngreen	50+	717	81.6%
All colors	878	100

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity	Unique Reachable Complexities	Unique Reachable Functions	All non-covered Complexity	All Reachable Complexity	Function Name	Function Callsite	Blocked Branch
137	137	1 : View List ['alg_quant']	137	137	quant_partition	call site: 00660	/src/opus/celt/bands.c:1116
55	55	2 : View List ['ec_enc_depth', 'median_of_5_val16']	55	57	clt_compute_extra_allocation	call site: 00536	/src/opus/celt/rate.c:770
53	53	2 : View List ['ec_enc_uint', 'stereo_itheta']	57	285	cubic_quant_partition	call site: 00593	/src/opus/celt/bands.c:1216
31	31	1 : View List ['ec_enc_uint']	70	79	interp_bits2pulses	call site: 00503	/src/opus/celt/rate.c:398
31	31	1 : View List ['ec_enc_uint']	38	60	compute_theta	call site: 00643	/src/opus/celt/bands.c:852
22	22	1 : View List ['stereo_itheta']	161	350	compute_theta	call site: 00618	/src/opus/celt/bands.c:739
22	22	1 : View List ['ec_encode']	66	156	compute_theta	call site: 00627	/src/opus/celt/bands.c:790
22	22	1 : View List ['ec_encode']	66	156	compute_theta	call site: 00632	/src/opus/celt/bands.c:812
18	114	4 : View List ['skip_extension', 'celt_fatal', 'skip_extension_payload', 'opus_extension_iterator_next']	18	114	opus_extension_iterator_next	call site: 00858	/src/opus/src/extensions.c:196
15	15	1 : View List ['ec_enc_bit_logp']	39	39	interp_bits2pulses	call site: 00513	/src/opus/celt/rate.c:415
15	15	1 : View List ['ec_enc_bit_logp']	15	35	compute_theta	call site: 00651	/src/opus/celt/bands.c:893
12	12	1 : View List ['ec_enc_bits']	12	468	quant_band_stereo	call site: 00761	/src/opus/celt/bands.c:1476

Runtime coverage analysis

Covered functions

234

Functions that are reachable but not covered

33

Reachable functions

266

Percentage of reachable functions covered

87.59%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
/src/opus/tests/opus_multistream_decode_fuzzer.cc	1
/src/opus/src/opus_multistream_decoder.c	13
/src/opus/src/opus_decoder.c	12
/src/opus/silk/dec_API.c	5
/src/opus/src/opus_private.h	1
/src/opus/celt/celt_decoder.c	15
/src/opus/celt/modes.c	2
/src/opus/./celt/os_support.h	2
/src/opus/src/opus_multistream.c	4
/src/opus/silk/init_decoder.c	2
/src/opus/celt/x86/x86cpu.c	4
/src/opus/silk/CNG.c	3
/src/opus/silk/PLC.c	6
/src/opus/celt/celt.c	4
/src/opus/celt/arch.h	1
/src/opus/tests/../celt/os_support.h	2
/src/opus/src/opus.c	3
/src/opus/celt/entdec.c	11
/src/opus/silk/decoder_set_fs.c	1
/src/opus/silk/resampler.c	2
/src/opus/silk/stereo_decode_pred.c	2
/src/opus/silk/decode_indices.c	1
/src/opus/silk/NLSF_unpack.c	1
/src/opus/silk/decode_pulses.c	1
/src/opus/silk/shell_coder.c	2
/src/opus/silk/code_signs.c	1
/src/opus/silk/decode_frame.c	1
/src/opus/silk/decode_parameters.c	1
/src/opus/silk/gain_quant.c	1
/src/opus/silk/SigProc_FIX.h	6
/src/opus/silk/log2lin.c	1
/src/opus/silk/NLSF_decode.c	2
/src/opus/silk/NLSF_stabilize.c	1
/src/opus/silk/typedef.h	1
/src/opus/silk/sort.c	1
/src/opus/silk/NLSF2A.c	2
/src/opus/silk/LPC_fit.c	1
/src/opus/silk/bwexpander_32.c	1
/src/opus/silk/LPC_inv_pred_gain.c	2
/src/opus/silk/macros.h	1
/src/opus/silk/Inlines.h	4
/src/opus/silk/bwexpander.c	1
/src/opus/silk/decode_pitch.c	1
/src/opus/silk/decode_core.c	1
/src/opus/silk/LPC_analysis_filter.c	1
/src/opus/silk/sum_sqr_shift.c	1
/src/opus/silk/stereo_MS_to_LR.c	1
/src/opus/silk/resampler_private_up2_HQ.c	2
/src/opus/silk/resampler_private_IIR_FIR.c	2
/src/opus/silk/resampler_private_down_FIR.c	2
/src/opus/silk/resampler_private_AR2.c	1
/src/opus/./celt/entcode.h	1
/src/opus/celt/entcode.h	4
/src/opus/celt/bands.c	21
/src/opus/celt/vq.c	21
/src/opus/celt/mathops.h	10
/src/opus/celt/mathops.c	13
/src/opus/celt/mdct.c	1
/src/opus/celt/kiss_fft.c	6
/src/opus/celt/pitch.c	5
/src/opus/celt/celt_lpc.c	3
/src/opus/celt/pitch.h	1
/src/opus/celt/quant_bands.c	3
/src/opus/celt/laplace.c	2
/src/opus/celt/entcode.c	1
/src/opus/celt/rate.c	6
/src/opus/celt/entenc.c	9
/src/opus/celt/rate.h	3
/src/opus/celt/cwrs.c	4
/src/opus/./celt/mathops.h	2
/src/opus/./celt/stack_alloc.h	1
/src/opus/src/extensions.c	5
/src/opus/./celt/arch.h	1

Fuzzer: opus_projection_decoder_fuzzer_fixed_qext

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	156	17.2%
gold	[1:9]	0	0.0%
yellow	[10:29]	2	0.22%
greenyellow	[30:49]	2	0.22%
lawngreen	50+	743	82.2%
All colors	903	100

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity	Unique Reachable Complexities	Unique Reachable Functions	All non-covered Complexity	All Reachable Complexity	Function Name	Function Callsite	Blocked Branch
137	137	1 : View List ['alg_quant']	137	137	quant_partition	call site: 00679	/src/opus/celt/bands.c:1116
55	55	2 : View List ['ec_enc_depth', 'median_of_5_val16']	55	57	clt_compute_extra_allocation	call site: 00555	/src/opus/celt/rate.c:770
53	53	2 : View List ['ec_enc_uint', 'stereo_itheta']	57	285	cubic_quant_partition	call site: 00612	/src/opus/celt/bands.c:1216
31	31	1 : View List ['ec_enc_uint']	70	79	interp_bits2pulses	call site: 00522	/src/opus/celt/rate.c:398
31	31	1 : View List ['ec_enc_uint']	38	60	compute_theta	call site: 00662	/src/opus/celt/bands.c:852
22	22	1 : View List ['stereo_itheta']	161	350	compute_theta	call site: 00637	/src/opus/celt/bands.c:739
22	22	1 : View List ['ec_encode']	66	156	compute_theta	call site: 00646	/src/opus/celt/bands.c:790
22	22	1 : View List ['ec_encode']	66	156	compute_theta	call site: 00651	/src/opus/celt/bands.c:812
18	114	4 : View List ['skip_extension', 'celt_fatal', 'skip_extension_payload', 'opus_extension_iterator_next']	18	114	opus_extension_iterator_next	call site: 00877	/src/opus/src/extensions.c:196
15	15	1 : View List ['ec_enc_bit_logp']	39	39	interp_bits2pulses	call site: 00532	/src/opus/celt/rate.c:415
15	15	1 : View List ['ec_enc_bit_logp']	15	35	compute_theta	call site: 00670	/src/opus/celt/bands.c:893
12	12	1 : View List ['ec_enc_bits']	12	468	quant_band_stereo	call site: 00780	/src/opus/celt/bands.c:1476

Runtime coverage analysis

Covered functions

243

Functions that are reachable but not covered

33

Reachable functions

275

Percentage of reachable functions covered

88.0%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
/src/opus/tests/opus_projection_decoder_fuzzer.cc	1
/src/opus/tests/../celt/os_support.h	2
/src/opus/src/opus_projection_decoder.c	10
/src/opus/src/mapping_matrix.c	5
/src/opus/src/opus_private.h	1
/src/opus/src/opus_multistream_decoder.c	7
/src/opus/src/opus_decoder.c	12
/src/opus/silk/dec_API.c	5
/src/opus/celt/celt_decoder.c	15
/src/opus/celt/modes.c	2
/src/opus/./celt/os_support.h	2
/src/opus/celt/arch.h	1
/src/opus/src/opus_multistream.c	4
/src/opus/silk/init_decoder.c	2
/src/opus/celt/x86/x86cpu.c	4
/src/opus/silk/CNG.c	3
/src/opus/silk/PLC.c	6
/src/opus/celt/celt.c	4
/src/opus/src/opus.c	3
/src/opus/celt/entdec.c	11
/src/opus/silk/decoder_set_fs.c	1
/src/opus/silk/resampler.c	2
/src/opus/silk/stereo_decode_pred.c	2
/src/opus/silk/decode_indices.c	1
/src/opus/silk/NLSF_unpack.c	1
/src/opus/silk/decode_pulses.c	1
/src/opus/silk/shell_coder.c	2
/src/opus/silk/code_signs.c	1
/src/opus/silk/decode_frame.c	1
/src/opus/silk/decode_parameters.c	1
/src/opus/silk/gain_quant.c	1
/src/opus/silk/SigProc_FIX.h	6
/src/opus/silk/log2lin.c	1
/src/opus/silk/NLSF_decode.c	2
/src/opus/silk/NLSF_stabilize.c	1
/src/opus/silk/typedef.h	1
/src/opus/silk/sort.c	1
/src/opus/silk/NLSF2A.c	2
/src/opus/silk/LPC_fit.c	1
/src/opus/silk/bwexpander_32.c	1
/src/opus/silk/LPC_inv_pred_gain.c	2
/src/opus/silk/macros.h	1
/src/opus/silk/Inlines.h	4
/src/opus/silk/bwexpander.c	1
/src/opus/silk/decode_pitch.c	1
/src/opus/silk/decode_core.c	1
/src/opus/silk/LPC_analysis_filter.c	1
/src/opus/silk/sum_sqr_shift.c	1
/src/opus/silk/stereo_MS_to_LR.c	1
/src/opus/silk/resampler_private_up2_HQ.c	2
/src/opus/silk/resampler_private_IIR_FIR.c	2
/src/opus/silk/resampler_private_down_FIR.c	2
/src/opus/silk/resampler_private_AR2.c	1
/src/opus/./celt/entcode.h	1
/src/opus/celt/entcode.h	4
/src/opus/celt/bands.c	21
/src/opus/celt/vq.c	21
/src/opus/celt/mathops.h	10
/src/opus/celt/mathops.c	13
/src/opus/celt/mdct.c	1
/src/opus/celt/kiss_fft.c	6
/src/opus/celt/pitch.c	5
/src/opus/celt/celt_lpc.c	3
/src/opus/celt/pitch.h	1
/src/opus/celt/quant_bands.c	3
/src/opus/celt/laplace.c	2
/src/opus/celt/entcode.c	1
/src/opus/celt/rate.c	6
/src/opus/celt/entenc.c	9
/src/opus/celt/rate.h	3
/src/opus/celt/cwrs.c	4
/src/opus/./celt/mathops.h	2
/src/opus/./celt/stack_alloc.h	1
/src/opus/src/extensions.c	5
/src/opus/./celt/arch.h	1

Fuzzer: opus_multistream_encode_fuzzer_floating

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	166	13.6%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	1053	86.3%
All colors	1219	100

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity	Unique Reachable Complexities	Unique Reachable Functions	All non-covered Complexity	All Reachable Complexity	Function Name	Function Callsite	Blocked Branch
97	97	1 : View List ['alg_unquant']	97	97	quant_partition	call site: 01100	/src/opus/celt/bands.c:1116
86	86	2 : View List ['celt_fatal', 'opus_packet_extensions_generate']	86	86	opus_repacketizer_out_range_impl	call site: 00304	/src/opus/src/repacketizer.c:308
28	28	1 : View List ['ec_dec_uint']	61	76	interp_bits2pulses	call site: 01016	/src/opus/celt/rate.c:398
18	24	3 : View List ['ec_dec_update', 'isqrt32', 'ec_decode']	52	158	compute_theta	call site: 01082	/src/opus/celt/bands.c:812
18	18	2 : View List ['ec_dec_update', 'ec_decode']	52	152	compute_theta	call site: 01077	/src/opus/celt/bands.c:790
9	9	1 : View List ['ec_dec_bit_logp']	33	33	interp_bits2pulses	call site: 01020	/src/opus/celt/rate.c:415
9	9	1 : View List ['ec_dec_bit_logp']	9	29	compute_theta	call site: 01093	/src/opus/celt/bands.c:893
6	6	1 : View List ['ec_dec_bits']	6	462	quant_band_stereo	call site: 01155	/src/opus/celt/bands.c:1476
6	6	1 : View List ['celt_fatal']	6	6	check_control_input	call site: 00349	/src/opus/silk/check_control_input.c:103
6	6	1 : View List ['celt_fatal']	6	6	silk_InitEncoder	call site: 00053	/src/opus/silk/enc_API.c:97
6	6	1 : View List ['celt_fatal']	6	6	silk_resampler_init	call site: 00361	/src/opus/silk/resampler.c:157
4	4	1 : View List ['compute_redundancy_bytes']	4	9149	opus_encode_frame_native	call site: 00839	/src/opus/src/opus_encoder.c:2167

Runtime coverage analysis

Covered functions

378

Functions that are reachable but not covered

32

Reachable functions

364

Percentage of reachable functions covered

91.21%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Warning: The number of covered functions are larger than the number of reachable functions. This means that there are more functions covered at runtime than are extracted using static analysis. This is likely a result of the static analysis component failing to extract the right call graph or the coverage runtime being compiled with sanitizers in code that the static analysis has not analysed. This can happen if lto/gold is not used in all places that coverage instrumentation is used.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
/src/opus/tests/opus_multistream_encode_fuzzer.cc	1
/src/opus/src/opus_multistream_encoder.c	23
/src/opus/celt/mathops.c	1
/src/opus/src/opus_encoder.c	22
/src/opus/silk/enc_API.c	4
/src/opus/src/opus_private.h	1
/src/opus/celt/celt_encoder.c	22
/src/opus/celt/modes.c	1
/src/opus/./celt/os_support.h	2
/src/opus/celt/x86/x86cpu.c	4
/src/opus/src/opus_multistream.c	4
/src/opus/silk/init_encoder.c	1
/src/opus/silk/lin2log.c	1
/src/opus/silk/Inlines.h	4
/src/opus/silk/macros.h	1
/src/opus/silk/SigProc_FIX.h	5
/src/opus/silk/VAD.c	1
/src/opus/celt/arch.h	2
/src/opus/celt/celt.c	3
/src/opus/src/analysis.c	7
/src/opus/tests/../celt/os_support.h	2
/src/opus/celt/x86/pitch_sse.c	3
/src/opus/./celt/arch.h	1
/src/opus/celt/mdct.c	1
/src/opus/celt/kiss_fft.c	6
/src/opus/celt/bands.c	22
/src/opus/celt/quant_bands.c	6
/src/opus/celt/mathops.h	5
/src/opus/./celt/mathops.h	4
/src/opus/src/repacketizer.c	7
/src/opus/./celt/float_cast.h	2
/src/opus/src/mlp.c	5
/src/opus/src/opus.c	4
/src/opus/src/opus_decoder.c	1
/src/opus/src/extensions.c	9
/src/opus/celt/entenc.c	14
/src/opus/silk/log2lin.c	1
/src/opus/./silk/typedef.h	1
/src/opus/silk/check_control_input.c	1
/src/opus/silk/control_codec.c	5
/src/opus/silk/resampler.c	2
/src/opus/./silk/float/SigProc_FLP.h	2
/src/opus/silk/resampler_private_up2_HQ.c	2
/src/opus/silk/resampler_private_IIR_FIR.c	2
/src/opus/silk/resampler_private_down_FIR.c	2
/src/opus/silk/resampler_private_AR2.c	1
/src/opus/silk/control_audio_bandwidth.c	1
/src/opus/./silk/SigProc_FIX.h	4
/src/opus/silk/typedef.h	1
/src/opus/./celt/entcode.h	1
/src/opus/silk/stereo_encode_pred.c	2
/src/opus/silk/encode_indices.c	1
/src/opus/silk/NLSF_unpack.c	1
/src/opus/silk/encode_pulses.c	2
/src/opus/silk/shell_coder.c	3
/src/opus/silk/code_signs.c	1
/src/opus/silk/HP_variable_cutoff.c	1
/src/opus/silk/stereo_LR_to_MS.c	1
/src/opus/silk/stereo_find_predictor.c	1
/src/opus/silk/sum_sqr_shift.c	1
/src/opus/silk/inner_prod_aligned.c	1
/src/opus/silk/stereo_quant_pred.c	1
/src/opus/silk/float/encode_frame_FLP.c	3
/src/opus/silk/control_SNR.c	1
/src/opus/silk/LP_variable_cutoff.c	2
/src/opus/silk/biquad_alt.c	1
/src/opus/silk/float/SigProc_FLP.h	5
/src/opus/silk/float/find_pitch_lags_FLP.c	1
/src/opus/silk/float/apply_sine_window_FLP.c	1
/src/opus/silk/float/autocorrelation_FLP.c	1
/src/opus/silk/float/schur_FLP.c	1
/src/opus/silk/float/k2a_FLP.c	1
/src/opus/silk/float/bwexpander_FLP.c	1
/src/opus/silk/float/LPC_analysis_filter_FLP.c	6
/src/opus/silk/float/pitch_analysis_core_FLP.c	3
/src/opus/silk/resampler_down2.c	1
/src/opus/silk/resampler_down2_3.c	1
/src/opus/silk/float/energy_FLP.c	1
/src/opus/silk/float/sort_FLP.c	1
/src/opus/silk/float/noise_shape_analysis_FLP.c	4
/src/opus/silk/float/warped_autocorrelation_FLP.c	1
/src/opus/silk/float/find_pred_coefs_FLP.c	1
/src/opus/silk/float/find_LTP_FLP.c	1
/src/opus/silk/float/corrMatrix_FLP.c	2
/src/opus/silk/float/scale_vector_FLP.c	1
/src/opus/silk/float/wrappers_FLP.c	5
/src/opus/silk/quant_LTP_gains.c	1
/src/opus/silk/float/LTP_scale_ctrl_FLP.c	1
/src/opus/silk/float/LTP_analysis_filter_FLP.c	1
/src/opus/silk/float/scale_copy_vector_FLP.c	1
/src/opus/silk/float/find_LPC_FLP.c	1
/src/opus/silk/float/burg_modified_FLP.c	1
/src/opus/silk/A2NLSF.c	4
/src/opus/silk/bwexpander_32.c	1
/src/opus/silk/interpolate.c	1
/src/opus/silk/NLSF2A.c	2
/src/opus/silk/LPC_fit.c	1
/src/opus/silk/LPC_inv_pred_gain.c	2
/src/opus/silk/process_NLSFs.c	1
/src/opus/silk/NLSF_VQ_weights_laroia.c	1
/src/opus/silk/NLSF_encode.c	1
/src/opus/silk/NLSF_stabilize.c	1
/src/opus/silk/sort.c	2
/src/opus/silk/NLSF_VQ.c	1
/src/opus/silk/NLSF_del_dec_quant.c	1
/src/opus/silk/NLSF_decode.c	2
/src/opus/silk/float/residual_energy_FLP.c	1
/src/opus/silk/float/process_gains_FLP.c	1
/src/opus/silk/gain_quant.c	3
/src/opus/celt/entcode.h	6
/src/opus/celt/entcode.c	1
/src/opus/celt/pitch.c	6
/src/opus/celt/celt_lpc.c	2
/src/opus/celt/laplace.c	2
/src/opus/celt/rate.c	2
/src/opus/celt/entdec.c	8
/src/opus/celt/vq.c	8
/src/opus/celt/rate.h	3
/src/opus/celt/x86/vq_sse2.c	1
/src/opus/celt/cwrs.c	4

Fuzzer: opus_multistream_encode_fuzzer_floating_qext

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	1330	100.%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	0	0.0%
All colors	1330	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
1329	0	EP	call site: 00000	opus_multistream_encode

Runtime coverage analysis

Covered functions

0

Functions that are reachable but not covered

382

Reachable functions

382

Percentage of reachable functions covered

0.0%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
/src/opus/tests/opus_multistream_encode_fuzzer.cc	1
/src/opus/src/opus_multistream_encoder.c	23
/src/opus/celt/mathops.c	1
/src/opus/src/opus_encoder.c	22
/src/opus/silk/enc_API.c	4
/src/opus/src/opus_private.h	1
/src/opus/celt/celt_encoder.c	23
/src/opus/celt/modes.c	2
/src/opus/./celt/os_support.h	2
/src/opus/celt/x86/x86cpu.c	4
/src/opus/src/opus_multistream.c	4
/src/opus/silk/init_encoder.c	1
/src/opus/silk/lin2log.c	1
/src/opus/silk/Inlines.h	4
/src/opus/silk/macros.h	1
/src/opus/silk/SigProc_FIX.h	5
/src/opus/silk/VAD.c	1
/src/opus/celt/arch.h	2
/src/opus/celt/celt.c	3
/src/opus/src/analysis.c	7
/src/opus/tests/../celt/os_support.h	2
/src/opus/celt/x86/pitch_sse.c	3
/src/opus/./celt/arch.h	1
/src/opus/celt/mdct.c	1
/src/opus/celt/kiss_fft.c	6
/src/opus/celt/bands.c	23
/src/opus/celt/quant_bands.c	6
/src/opus/celt/mathops.h	6
/src/opus/./celt/mathops.h	4
/src/opus/src/repacketizer.c	7
/src/opus/./celt/float_cast.h	2
/src/opus/src/mlp.c	5
/src/opus/src/opus.c	4
/src/opus/src/opus_decoder.c	1
/src/opus/src/extensions.c	9
/src/opus/celt/entenc.c	14
/src/opus/silk/log2lin.c	1
/src/opus/./silk/typedef.h	1
/src/opus/silk/check_control_input.c	1
/src/opus/silk/control_codec.c	5
/src/opus/silk/resampler.c	2
/src/opus/./silk/float/SigProc_FLP.h	2
/src/opus/silk/resampler_private_up2_HQ.c	2
/src/opus/silk/resampler_private_IIR_FIR.c	2
/src/opus/silk/resampler_private_down_FIR.c	2
/src/opus/silk/resampler_private_AR2.c	1
/src/opus/silk/control_audio_bandwidth.c	1
/src/opus/./silk/SigProc_FIX.h	4
/src/opus/silk/typedef.h	1
/src/opus/./celt/entcode.h	1
/src/opus/silk/stereo_encode_pred.c	2
/src/opus/silk/encode_indices.c	1
/src/opus/silk/NLSF_unpack.c	1
/src/opus/silk/encode_pulses.c	2
/src/opus/silk/shell_coder.c	3
/src/opus/silk/code_signs.c	1
/src/opus/silk/HP_variable_cutoff.c	1
/src/opus/silk/stereo_LR_to_MS.c	1
/src/opus/silk/stereo_find_predictor.c	1
/src/opus/silk/sum_sqr_shift.c	1
/src/opus/silk/inner_prod_aligned.c	1
/src/opus/silk/stereo_quant_pred.c	1
/src/opus/silk/float/encode_frame_FLP.c	3
/src/opus/silk/control_SNR.c	1
/src/opus/silk/LP_variable_cutoff.c	2
/src/opus/silk/biquad_alt.c	1
/src/opus/silk/float/SigProc_FLP.h	5
/src/opus/silk/float/find_pitch_lags_FLP.c	1
/src/opus/silk/float/apply_sine_window_FLP.c	1
/src/opus/silk/float/autocorrelation_FLP.c	1
/src/opus/silk/float/schur_FLP.c	1
/src/opus/silk/float/k2a_FLP.c	1
/src/opus/silk/float/bwexpander_FLP.c	1
/src/opus/silk/float/LPC_analysis_filter_FLP.c	6
/src/opus/silk/float/pitch_analysis_core_FLP.c	3
/src/opus/silk/resampler_down2.c	1
/src/opus/silk/resampler_down2_3.c	1
/src/opus/silk/float/energy_FLP.c	1
/src/opus/silk/float/sort_FLP.c	1
/src/opus/silk/float/noise_shape_analysis_FLP.c	4
/src/opus/silk/float/warped_autocorrelation_FLP.c	1
/src/opus/silk/float/find_pred_coefs_FLP.c	1
/src/opus/silk/float/find_LTP_FLP.c	1
/src/opus/silk/float/corrMatrix_FLP.c	2
/src/opus/silk/float/scale_vector_FLP.c	1
/src/opus/silk/float/wrappers_FLP.c	5
/src/opus/silk/quant_LTP_gains.c	1
/src/opus/silk/float/LTP_scale_ctrl_FLP.c	1
/src/opus/silk/float/LTP_analysis_filter_FLP.c	1
/src/opus/silk/float/scale_copy_vector_FLP.c	1
/src/opus/silk/float/find_LPC_FLP.c	1
/src/opus/silk/float/burg_modified_FLP.c	1
/src/opus/silk/A2NLSF.c	4
/src/opus/silk/bwexpander_32.c	1
/src/opus/silk/interpolate.c	1
/src/opus/silk/NLSF2A.c	2
/src/opus/silk/LPC_fit.c	1
/src/opus/silk/LPC_inv_pred_gain.c	2
/src/opus/silk/process_NLSFs.c	1
/src/opus/silk/NLSF_VQ_weights_laroia.c	1
/src/opus/silk/NLSF_encode.c	1
/src/opus/silk/NLSF_stabilize.c	1
/src/opus/silk/sort.c	2
/src/opus/silk/NLSF_VQ.c	1
/src/opus/silk/NLSF_del_dec_quant.c	1
/src/opus/silk/NLSF_decode.c	2
/src/opus/silk/float/residual_energy_FLP.c	1
/src/opus/silk/float/process_gains_FLP.c	1
/src/opus/silk/gain_quant.c	3
/src/opus/celt/entcode.h	6
/src/opus/celt/entcode.c	1
/src/opus/celt/pitch.c	6
/src/opus/celt/celt_lpc.c	2
/src/opus/celt/laplace.c	2
/src/opus/celt/rate.c	6
/src/opus/celt/entdec.c	9
/src/opus/celt/vq.c	16
/src/opus/celt/rate.h	3
/src/opus/celt/cwrs.c	4
/src/opus/celt/x86/vq_sse2.c	1

Fuzzer: opus_projection_encoder_fuzzer_fixed

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	1337	100.%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	0	0.0%
All colors	1337	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
1336	0	EP	call site: 00000	opus_projection_encode

Runtime coverage analysis

Covered functions

0

Functions that are reachable but not covered

377

Reachable functions

377

Percentage of reachable functions covered

0.0%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
/src/opus/tests/opus_projection_encoder_fuzzer.cc	1
/src/opus/src/opus_projection_encoder.c	12
/src/opus/celt/mathops.c	12
/src/opus/src/mapping_matrix.c	4
/src/opus/src/opus_private.h	1
/src/opus/src/opus_multistream_encoder.c	15
/src/opus/src/opus_encoder.c	21
/src/opus/silk/enc_API.c	4
/src/opus/celt/celt_encoder.c	24
/src/opus/celt/modes.c	1
/src/opus/./celt/os_support.h	2
/src/opus/celt/arch.h	1
/src/opus/celt/x86/x86cpu.c	4
/src/opus/src/opus_multistream.c	4
/src/opus/silk/init_encoder.c	1
/src/opus/silk/lin2log.c	1
/src/opus/silk/Inlines.h	4
/src/opus/silk/macros.h	1
/src/opus/silk/SigProc_FIX.h	5
/src/opus/silk/VAD.c	1
/src/opus/celt/celt.c	4
/src/opus/src/analysis.c	8
/src/opus/tests/../celt/os_support.h	2
/src/opus/celt/mdct.c	1
/src/opus/celt/mathops.h	9
/src/opus/celt/kiss_fft.c	7
/src/opus/celt/bands.c	22
/src/opus/celt/quant_bands.c	6
/src/opus/./celt/mathops.h	7
/src/opus/src/repacketizer.c	7
/src/opus/./celt/float_cast.h	1
/src/opus/src/mlp.c	5
/src/opus/src/opus.c	4
/src/opus/src/opus_decoder.c	1
/src/opus/src/extensions.c	9
/src/opus/celt/entenc.c	14
/src/opus/silk/log2lin.c	1
/src/opus/./silk/typedef.h	1
/src/opus/silk/biquad_alt.c	2
/src/opus/silk/check_control_input.c	1
/src/opus/silk/control_codec.c	5
/src/opus/silk/resampler.c	2
/src/opus/silk/resampler_private_up2_HQ.c	2
/src/opus/silk/resampler_private_IIR_FIR.c	2
/src/opus/silk/resampler_private_down_FIR.c	2
/src/opus/silk/resampler_private_AR2.c	1
/src/opus/silk/control_audio_bandwidth.c	1
/src/opus/./silk/SigProc_FIX.h	5
/src/opus/silk/typedef.h	1
/src/opus/./celt/entcode.h	1
/src/opus/silk/stereo_encode_pred.c	2
/src/opus/silk/encode_indices.c	1
/src/opus/silk/NLSF_unpack.c	1
/src/opus/silk/encode_pulses.c	2
/src/opus/silk/shell_coder.c	3
/src/opus/silk/code_signs.c	1
/src/opus/silk/HP_variable_cutoff.c	1
/src/opus/silk/stereo_LR_to_MS.c	1
/src/opus/silk/stereo_find_predictor.c	1
/src/opus/silk/sum_sqr_shift.c	1
/src/opus/silk/inner_prod_aligned.c	1
/src/opus/silk/stereo_quant_pred.c	1
/src/opus/silk/fixed/encode_frame_FIX.c	3
/src/opus/silk/control_SNR.c	1
/src/opus/silk/LP_variable_cutoff.c	2
/src/opus/silk/fixed/find_pitch_lags_FIX.c	1
/src/opus/silk/fixed/apply_sine_window_FIX.c	1
/src/opus/silk/fixed/autocorr_FIX.c	1
/src/opus/celt/celt_lpc.c	2
/src/opus/celt/pitch.c	7
/src/opus/celt/pitch.h	2
/src/opus/silk/fixed/schur_FIX.c	1
/src/opus/./silk/macros.h	1
/src/opus/./silk/Inlines.h	5
/src/opus/silk/fixed/k2a_FIX.c	1
/src/opus/silk/bwexpander.c	1
/src/opus/silk/LPC_analysis_filter.c	1
/src/opus/silk/fixed/pitch_analysis_core_FIX.c	3
/src/opus/silk/resampler_down2.c	1
/src/opus/silk/resampler_down2_3.c	1
/src/opus/silk/fixed/vector_ops_FIX.c	2
/src/opus/silk/sort.c	3
/src/opus/silk/fixed/noise_shape_analysis_FIX.c	3
/src/opus/silk/sigm_Q15.c	1
/src/opus/silk/fixed/warped_autocorrelation_FIX.c	1
/src/opus/silk/fixed/schur64_FIX.c	1
/src/opus/silk/fixed/k2a_Q16_FIX.c	1
/src/opus/silk/bwexpander_32.c	1
/src/opus/silk/LPC_fit.c	1
/src/opus/silk/fixed/find_pred_coefs_FIX.c	1
/src/opus/silk/fixed/find_LTP_FIX.c	1
/src/opus/silk/fixed/corrMatrix_FIX.c	2
/src/opus/silk/quant_LTP_gains.c	1
/src/opus/silk/fixed/LTP_scale_ctrl_FIX.c	1
/src/opus/silk/fixed/LTP_analysis_filter_FIX.c	1
/src/opus/silk/fixed/find_LPC_FIX.c	1
/src/opus/silk/A2NLSF.c	4
/src/opus/silk/interpolate.c	1
/src/opus/silk/NLSF2A.c	2
/src/opus/silk/LPC_inv_pred_gain.c	2
/src/opus/silk/process_NLSFs.c	1
/src/opus/silk/NLSF_VQ_weights_laroia.c	1
/src/opus/silk/NLSF_encode.c	1
/src/opus/silk/NLSF_stabilize.c	1
/src/opus/silk/NLSF_VQ.c	1
/src/opus/silk/NLSF_del_dec_quant.c	1
/src/opus/silk/NLSF_decode.c	2
/src/opus/silk/fixed/residual_energy_FIX.c	1
/src/opus/silk/fixed/process_gains_FIX.c	1
/src/opus/silk/gain_quant.c	3
/src/opus/celt/entcode.h	6
/src/opus/celt/entcode.c	1
/src/opus/celt/laplace.c	2
/src/opus/celt/vq.c	13
/src/opus/celt/rate.c	2
/src/opus/celt/entdec.c	8
/src/opus/celt/rate.h	3
/src/opus/celt/cwrs.c	4

Fuzzer: opus_multistream_encode_fuzzer_fixed_qext

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	268	18.5%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	1	0.06%
lawngreen	50+	1176	81.3%
All colors	1445	100

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity	Unique Reachable Complexities	Unique Reachable Functions	All non-covered Complexity	All Reachable Complexity	Function Name	Function Callsite	Blocked Branch
114	114	1 : View List ['cubic_quant_partition']	116	128	quant_band	call site: 01177	/src/opus/celt/bands.c:1333
97	97	1 : View List ['alg_unquant']	97	97	quant_partition	call site: 01260	/src/opus/celt/bands.c:1116
95	99	4 : View List ['ec_enc_depth', 'ec_tell_frac', 'median_of_5_val16', 'ec_dec_depth']	95	99	clt_compute_extra_allocation	call site: 01142	/src/opus/celt/rate.c:763
95	97	3 : View List ['cubic_quant', 'ec_tell_frac', 'cubic_unquant']	95	97	quant_partition	call site: 01260	/src/opus/celt/bands.c:1126
86	86	2 : View List ['celt_fatal', 'opus_packet_extensions_generate']	86	86	opus_repacketizer_out_range_impl	call site: 00336	/src/opus/src/repacketizer.c:308
57	69	4 : View List ['ec_enc_refine', 'ec_tell.830', 'op_pvq_search_extra', 'ec_enc_bits']	57	155	alg_quant	call site: 01298	/src/opus/celt/vq.c:584
28	91	3 : View List ['ec_dec_uint', 'celt_sudiv', 'ec_enc_uint']	28	122	compute_theta	call site: 01241	/src/opus/celt/bands.c:848
28	28	1 : View List ['ec_dec_uint']	61	76	interp_bits2pulses	call site: 01108	/src/opus/celt/rate.c:398
18	24	3 : View List ['ec_dec_update', 'isqrt32', 'ec_decode']	52	158	compute_theta	call site: 01232	/src/opus/celt/bands.c:812
18	18	2 : View List ['ec_dec_update', 'ec_decode']	52	152	compute_theta	call site: 01227	/src/opus/celt/bands.c:790
9	9	1 : View List ['ec_dec_bit_logp']	33	33	interp_bits2pulses	call site: 01112	/src/opus/celt/rate.c:415
9	9	1 : View List ['ec_dec_bit_logp']	9	29	compute_theta	call site: 01251	/src/opus/celt/bands.c:893

Runtime coverage analysis

Covered functions

399

Functions that are reachable but not covered

44

Reachable functions

391

Percentage of reachable functions covered

88.75%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Warning: The number of covered functions are larger than the number of reachable functions. This means that there are more functions covered at runtime than are extracted using static analysis. This is likely a result of the static analysis component failing to extract the right call graph or the coverage runtime being compiled with sanitizers in code that the static analysis has not analysed. This can happen if lto/gold is not used in all places that coverage instrumentation is used.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
/src/opus/tests/opus_multistream_encode_fuzzer.cc	1
/src/opus/src/opus_multistream_encoder.c	23
/src/opus/celt/mathops.c	13
/src/opus/src/opus_encoder.c	22
/src/opus/silk/enc_API.c	4
/src/opus/src/opus_private.h	1
/src/opus/celt/celt_encoder.c	25
/src/opus/celt/modes.c	2
/src/opus/./celt/os_support.h	2
/src/opus/celt/x86/x86cpu.c	4
/src/opus/src/opus_multistream.c	4
/src/opus/silk/init_encoder.c	1
/src/opus/silk/lin2log.c	1
/src/opus/silk/Inlines.h	4
/src/opus/silk/macros.h	1
/src/opus/silk/SigProc_FIX.h	5
/src/opus/silk/VAD.c	1
/src/opus/celt/arch.h	1
/src/opus/celt/celt.c	4
/src/opus/src/analysis.c	8
/src/opus/tests/../celt/os_support.h	2
/src/opus/celt/mdct.c	1
/src/opus/celt/mathops.h	11
/src/opus/celt/kiss_fft.c	7
/src/opus/celt/bands.c	23
/src/opus/celt/quant_bands.c	6
/src/opus/./celt/mathops.h	7
/src/opus/src/repacketizer.c	7
/src/opus/./celt/float_cast.h	1
/src/opus/src/mlp.c	5
/src/opus/./celt/arch.h	1
/src/opus/src/opus.c	4
/src/opus/src/opus_decoder.c	1
/src/opus/src/extensions.c	9
/src/opus/celt/entenc.c	14
/src/opus/silk/log2lin.c	1
/src/opus/./silk/typedef.h	1
/src/opus/silk/check_control_input.c	1
/src/opus/silk/control_codec.c	5
/src/opus/silk/resampler.c	2
/src/opus/silk/resampler_private_up2_HQ.c	2
/src/opus/silk/resampler_private_IIR_FIR.c	2
/src/opus/silk/resampler_private_down_FIR.c	2
/src/opus/silk/resampler_private_AR2.c	1
/src/opus/silk/control_audio_bandwidth.c	1
/src/opus/./silk/SigProc_FIX.h	5
/src/opus/silk/typedef.h	1
/src/opus/./celt/entcode.h	1
/src/opus/silk/stereo_encode_pred.c	2
/src/opus/silk/encode_indices.c	1
/src/opus/silk/NLSF_unpack.c	1
/src/opus/silk/encode_pulses.c	2
/src/opus/silk/shell_coder.c	3
/src/opus/silk/code_signs.c	1
/src/opus/silk/HP_variable_cutoff.c	1
/src/opus/silk/stereo_LR_to_MS.c	1
/src/opus/silk/stereo_find_predictor.c	1
/src/opus/silk/sum_sqr_shift.c	1
/src/opus/silk/inner_prod_aligned.c	1
/src/opus/silk/stereo_quant_pred.c	1
/src/opus/silk/fixed/encode_frame_FIX.c	3
/src/opus/silk/control_SNR.c	1
/src/opus/silk/LP_variable_cutoff.c	2
/src/opus/silk/biquad_alt.c	1
/src/opus/silk/fixed/find_pitch_lags_FIX.c	1
/src/opus/silk/fixed/apply_sine_window_FIX.c	1
/src/opus/silk/fixed/autocorr_FIX.c	1
/src/opus/celt/celt_lpc.c	2
/src/opus/celt/pitch.c	7
/src/opus/celt/pitch.h	2
/src/opus/silk/fixed/schur_FIX.c	1
/src/opus/./silk/macros.h	1
/src/opus/./silk/Inlines.h	5
/src/opus/silk/fixed/k2a_FIX.c	1
/src/opus/silk/bwexpander.c	1
/src/opus/silk/LPC_analysis_filter.c	1
/src/opus/silk/fixed/pitch_analysis_core_FIX.c	3
/src/opus/silk/resampler_down2.c	1
/src/opus/silk/resampler_down2_3.c	1
/src/opus/silk/fixed/vector_ops_FIX.c	2
/src/opus/silk/sort.c	3
/src/opus/silk/fixed/noise_shape_analysis_FIX.c	3
/src/opus/silk/sigm_Q15.c	1
/src/opus/silk/fixed/warped_autocorrelation_FIX.c	1
/src/opus/silk/fixed/schur64_FIX.c	1
/src/opus/silk/fixed/k2a_Q16_FIX.c	1
/src/opus/silk/bwexpander_32.c	1
/src/opus/silk/LPC_fit.c	1
/src/opus/silk/fixed/find_pred_coefs_FIX.c	1
/src/opus/silk/fixed/find_LTP_FIX.c	1
/src/opus/silk/fixed/corrMatrix_FIX.c	2
/src/opus/silk/quant_LTP_gains.c	1
/src/opus/silk/fixed/LTP_scale_ctrl_FIX.c	1
/src/opus/silk/fixed/LTP_analysis_filter_FIX.c	1
/src/opus/silk/fixed/find_LPC_FIX.c	1
/src/opus/silk/A2NLSF.c	4
/src/opus/silk/interpolate.c	1
/src/opus/silk/NLSF2A.c	2
/src/opus/silk/LPC_inv_pred_gain.c	2
/src/opus/silk/process_NLSFs.c	1
/src/opus/silk/NLSF_VQ_weights_laroia.c	1
/src/opus/silk/NLSF_encode.c	1
/src/opus/silk/NLSF_stabilize.c	1
/src/opus/silk/NLSF_VQ.c	1
/src/opus/silk/NLSF_del_dec_quant.c	1
/src/opus/silk/NLSF_decode.c	2
/src/opus/silk/fixed/residual_energy_FIX.c	1
/src/opus/silk/fixed/process_gains_FIX.c	1
/src/opus/silk/gain_quant.c	3
/src/opus/celt/entcode.h	6
/src/opus/celt/entcode.c	1
/src/opus/celt/laplace.c	2
/src/opus/celt/vq.c	21
/src/opus/celt/rate.c	6
/src/opus/celt/entdec.c	9
/src/opus/celt/rate.h	3
/src/opus/celt/cwrs.c	4

Fuzzer: opus_projection_encoder_fuzzer_floating

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	206	16.4%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	1	0.08%
lawngreen	50+	1042	83.4%
All colors	1249	100

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity	Unique Reachable Complexities	Unique Reachable Functions	All non-covered Complexity	All Reachable Complexity	Function Name	Function Callsite	Blocked Branch
128	128	1 : View List ['surround_analysis']	128	6327	opus_multistream_encode_native	call site: 00180	/src/opus/src/opus_multistream_encoder.c:877
97	97	1 : View List ['alg_unquant']	97	97	quant_partition	call site: 01127	/src/opus/celt/bands.c:1116
86	86	2 : View List ['celt_fatal', 'opus_packet_extensions_generate']	86	86	opus_repacketizer_out_range_impl	call site: 00332	/src/opus/src/repacketizer.c:308
48	48	2 : View List ['ms_get_preemph_mem', 'ms_get_window_mem']	176	7075	opus_multistream_encode_native	call site: 00171	/src/opus/src/opus_multistream_encoder.c:844
48	48	2 : View List ['ms_get_preemph_mem', 'ms_get_window_mem']	48	48	opus_multistream_encoder_init_impl	call site: 00114	/src/opus/src/opus_multistream_encoder.c:495
28	28	1 : View List ['ec_dec_uint']	61	76	interp_bits2pulses	call site: 01043	/src/opus/celt/rate.c:398
18	24	3 : View List ['ec_dec_update', 'isqrt32', 'ec_decode']	52	158	compute_theta	call site: 01109	/src/opus/celt/bands.c:812
18	18	2 : View List ['ec_dec_update', 'ec_decode']	52	152	compute_theta	call site: 01104	/src/opus/celt/bands.c:790
9	9	1 : View List ['ec_dec_bit_logp']	33	33	interp_bits2pulses	call site: 01047	/src/opus/celt/rate.c:415
9	9	1 : View List ['ec_dec_bit_logp']	9	29	compute_theta	call site: 01120	/src/opus/celt/bands.c:893
6	6	1 : View List ['ec_dec_bits']	6	462	quant_band_stereo	call site: 01182	/src/opus/celt/bands.c:1476
6	6	1 : View List ['celt_fatal']	6	6	check_control_input	call site: 00376	/src/opus/silk/check_control_input.c:103

Runtime coverage analysis

Covered functions

379

Functions that are reachable but not covered

39

Reachable functions

372

Percentage of reachable functions covered

89.52%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Warning: The number of covered functions are larger than the number of reachable functions. This means that there are more functions covered at runtime than are extracted using static analysis. This is likely a result of the static analysis component failing to extract the right call graph or the coverage runtime being compiled with sanitizers in code that the static analysis has not analysed. This can happen if lto/gold is not used in all places that coverage instrumentation is used.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
/src/opus/tests/opus_projection_encoder_fuzzer.cc	1
/src/opus/src/opus_projection_encoder.c	12
/src/opus/celt/mathops.c	1
/src/opus/src/mapping_matrix.c	4
/src/opus/src/opus_private.h	1
/src/opus/src/opus_multistream_encoder.c	15
/src/opus/src/opus_encoder.c	22
/src/opus/silk/enc_API.c	4
/src/opus/celt/celt_encoder.c	22
/src/opus/celt/modes.c	1
/src/opus/./celt/os_support.h	2
/src/opus/celt/arch.h	2
/src/opus/celt/x86/x86cpu.c	4
/src/opus/src/opus_multistream.c	4
/src/opus/silk/init_encoder.c	1
/src/opus/silk/lin2log.c	1
/src/opus/silk/Inlines.h	4
/src/opus/silk/macros.h	1
/src/opus/silk/SigProc_FIX.h	5
/src/opus/silk/VAD.c	1
/src/opus/celt/celt.c	3
/src/opus/src/analysis.c	7
/src/opus/tests/../celt/os_support.h	2
/src/opus/celt/x86/pitch_sse.c	3
/src/opus/./celt/arch.h	1
/src/opus/celt/mdct.c	1
/src/opus/celt/kiss_fft.c	6
/src/opus/celt/bands.c	22
/src/opus/celt/quant_bands.c	6
/src/opus/celt/mathops.h	5
/src/opus/./celt/mathops.h	4
/src/opus/src/repacketizer.c	7
/src/opus/./celt/float_cast.h	2
/src/opus/src/mlp.c	5
/src/opus/src/opus.c	4
/src/opus/src/opus_decoder.c	1
/src/opus/src/extensions.c	9
/src/opus/celt/entenc.c	14
/src/opus/silk/log2lin.c	1
/src/opus/./silk/typedef.h	1
/src/opus/silk/check_control_input.c	1
/src/opus/silk/control_codec.c	5
/src/opus/silk/resampler.c	2
/src/opus/./silk/float/SigProc_FLP.h	2
/src/opus/silk/resampler_private_up2_HQ.c	2
/src/opus/silk/resampler_private_IIR_FIR.c	2
/src/opus/silk/resampler_private_down_FIR.c	2
/src/opus/silk/resampler_private_AR2.c	1
/src/opus/silk/control_audio_bandwidth.c	1
/src/opus/./silk/SigProc_FIX.h	4
/src/opus/silk/typedef.h	1
/src/opus/./celt/entcode.h	1
/src/opus/silk/stereo_encode_pred.c	2
/src/opus/silk/encode_indices.c	1
/src/opus/silk/NLSF_unpack.c	1
/src/opus/silk/encode_pulses.c	2
/src/opus/silk/shell_coder.c	3
/src/opus/silk/code_signs.c	1
/src/opus/silk/HP_variable_cutoff.c	1
/src/opus/silk/stereo_LR_to_MS.c	1
/src/opus/silk/stereo_find_predictor.c	1
/src/opus/silk/sum_sqr_shift.c	1
/src/opus/silk/inner_prod_aligned.c	1
/src/opus/silk/stereo_quant_pred.c	1
/src/opus/silk/float/encode_frame_FLP.c	3
/src/opus/silk/control_SNR.c	1
/src/opus/silk/LP_variable_cutoff.c	2
/src/opus/silk/biquad_alt.c	1
/src/opus/silk/float/SigProc_FLP.h	5
/src/opus/silk/float/find_pitch_lags_FLP.c	1
/src/opus/silk/float/apply_sine_window_FLP.c	1
/src/opus/silk/float/autocorrelation_FLP.c	1
/src/opus/silk/float/schur_FLP.c	1
/src/opus/silk/float/k2a_FLP.c	1
/src/opus/silk/float/bwexpander_FLP.c	1
/src/opus/silk/float/LPC_analysis_filter_FLP.c	6
/src/opus/silk/float/pitch_analysis_core_FLP.c	3
/src/opus/silk/resampler_down2.c	1
/src/opus/silk/resampler_down2_3.c	1
/src/opus/silk/float/energy_FLP.c	1
/src/opus/silk/float/sort_FLP.c	1
/src/opus/silk/float/noise_shape_analysis_FLP.c	4
/src/opus/silk/float/warped_autocorrelation_FLP.c	1
/src/opus/silk/float/find_pred_coefs_FLP.c	1
/src/opus/silk/float/find_LTP_FLP.c	1
/src/opus/silk/float/corrMatrix_FLP.c	2
/src/opus/silk/float/scale_vector_FLP.c	1
/src/opus/silk/float/wrappers_FLP.c	5
/src/opus/silk/quant_LTP_gains.c	1
/src/opus/silk/float/LTP_scale_ctrl_FLP.c	1
/src/opus/silk/float/LTP_analysis_filter_FLP.c	1
/src/opus/silk/float/scale_copy_vector_FLP.c	1
/src/opus/silk/float/find_LPC_FLP.c	1
/src/opus/silk/float/burg_modified_FLP.c	1
/src/opus/silk/A2NLSF.c	4
/src/opus/silk/bwexpander_32.c	1
/src/opus/silk/interpolate.c	1
/src/opus/silk/NLSF2A.c	2
/src/opus/silk/LPC_fit.c	1
/src/opus/silk/LPC_inv_pred_gain.c	2
/src/opus/silk/process_NLSFs.c	1
/src/opus/silk/NLSF_VQ_weights_laroia.c	1
/src/opus/silk/NLSF_encode.c	1
/src/opus/silk/NLSF_stabilize.c	1
/src/opus/silk/sort.c	2
/src/opus/silk/NLSF_VQ.c	1
/src/opus/silk/NLSF_del_dec_quant.c	1
/src/opus/silk/NLSF_decode.c	2
/src/opus/silk/float/residual_energy_FLP.c	1
/src/opus/silk/float/process_gains_FLP.c	1
/src/opus/silk/gain_quant.c	3
/src/opus/celt/entcode.h	6
/src/opus/celt/entcode.c	1
/src/opus/celt/pitch.c	6
/src/opus/celt/celt_lpc.c	2
/src/opus/celt/laplace.c	2
/src/opus/celt/rate.c	2
/src/opus/celt/entdec.c	8
/src/opus/celt/vq.c	8
/src/opus/celt/rate.h	3
/src/opus/celt/x86/vq_sse2.c	1
/src/opus/celt/cwrs.c	4

Fuzzer: opus_encode_fuzzer_fixed

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	1187	100.%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	0	0.0%
All colors	1187	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
1186	0	EP	call site: 00000	opus_encode

Runtime coverage analysis

Covered functions

0

Functions that are reachable but not covered

340

Reachable functions

340

Percentage of reachable functions covered

0.0%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
/src/opus/tests/opus_encode_fuzzer.cc	1
/src/opus/src/opus_encoder.c	24
/src/opus/silk/enc_API.c	4
/src/opus/src/opus_private.h	1
/src/opus/celt/celt_encoder.c	24
/src/opus/celt/modes.c	1
/src/opus/./celt/os_support.h	2
/src/opus/celt/x86/x86cpu.c	4
/src/opus/silk/init_encoder.c	1
/src/opus/silk/lin2log.c	1
/src/opus/silk/Inlines.h	4
/src/opus/silk/macros.h	1
/src/opus/silk/SigProc_FIX.h	5
/src/opus/silk/VAD.c	1
/src/opus/celt/arch.h	1
/src/opus/celt/celt.c	4
/src/opus/src/analysis.c	8
/src/opus/./celt/mathops.h	6
/src/opus/celt/kiss_fft.c	7
/src/opus/./celt/float_cast.h	1
/src/opus/src/mlp.c	5
/src/opus/celt/mathops.c	12
/src/opus/celt/mathops.h	9
/src/opus/src/repacketizer.c	6
/src/opus/src/opus.c	4
/src/opus/src/opus_decoder.c	1
/src/opus/src/extensions.c	9
/src/opus/celt/entenc.c	14
/src/opus/silk/log2lin.c	1
/src/opus/./silk/typedef.h	1
/src/opus/silk/biquad_alt.c	2
/src/opus/silk/check_control_input.c	1
/src/opus/silk/control_codec.c	5
/src/opus/silk/resampler.c	2
/src/opus/silk/resampler_private_up2_HQ.c	2
/src/opus/silk/resampler_private_IIR_FIR.c	2
/src/opus/silk/resampler_private_down_FIR.c	2
/src/opus/silk/resampler_private_AR2.c	1
/src/opus/silk/control_audio_bandwidth.c	1
/src/opus/./silk/SigProc_FIX.h	5
/src/opus/silk/typedef.h	1
/src/opus/./celt/entcode.h	1
/src/opus/silk/stereo_encode_pred.c	2
/src/opus/silk/encode_indices.c	1
/src/opus/silk/NLSF_unpack.c	1
/src/opus/silk/encode_pulses.c	2
/src/opus/silk/shell_coder.c	3
/src/opus/silk/code_signs.c	1
/src/opus/silk/HP_variable_cutoff.c	1
/src/opus/silk/stereo_LR_to_MS.c	1
/src/opus/silk/stereo_find_predictor.c	1
/src/opus/silk/sum_sqr_shift.c	1
/src/opus/silk/inner_prod_aligned.c	1
/src/opus/silk/stereo_quant_pred.c	1
/src/opus/silk/fixed/encode_frame_FIX.c	3
/src/opus/silk/control_SNR.c	1
/src/opus/silk/LP_variable_cutoff.c	2
/src/opus/silk/fixed/find_pitch_lags_FIX.c	1
/src/opus/silk/fixed/apply_sine_window_FIX.c	1
/src/opus/silk/fixed/autocorr_FIX.c	1
/src/opus/celt/celt_lpc.c	2
/src/opus/celt/pitch.c	7
/src/opus/celt/pitch.h	2
/src/opus/silk/fixed/schur_FIX.c	1
/src/opus/./silk/macros.h	1
/src/opus/./silk/Inlines.h	5
/src/opus/silk/fixed/k2a_FIX.c	1
/src/opus/silk/bwexpander.c	1
/src/opus/silk/LPC_analysis_filter.c	1
/src/opus/silk/fixed/pitch_analysis_core_FIX.c	3
/src/opus/silk/resampler_down2.c	1
/src/opus/silk/resampler_down2_3.c	1
/src/opus/silk/fixed/vector_ops_FIX.c	2
/src/opus/silk/sort.c	3
/src/opus/silk/fixed/noise_shape_analysis_FIX.c	3
/src/opus/silk/sigm_Q15.c	1
/src/opus/silk/fixed/warped_autocorrelation_FIX.c	1
/src/opus/silk/fixed/schur64_FIX.c	1
/src/opus/silk/fixed/k2a_Q16_FIX.c	1
/src/opus/silk/bwexpander_32.c	1
/src/opus/silk/LPC_fit.c	1
/src/opus/silk/fixed/find_pred_coefs_FIX.c	1
/src/opus/silk/fixed/find_LTP_FIX.c	1
/src/opus/silk/fixed/corrMatrix_FIX.c	2
/src/opus/silk/quant_LTP_gains.c	1
/src/opus/silk/fixed/LTP_scale_ctrl_FIX.c	1
/src/opus/silk/fixed/LTP_analysis_filter_FIX.c	1
/src/opus/silk/fixed/find_LPC_FIX.c	1
/src/opus/silk/A2NLSF.c	4
/src/opus/silk/interpolate.c	1
/src/opus/silk/NLSF2A.c	2
/src/opus/silk/LPC_inv_pred_gain.c	2
/src/opus/silk/process_NLSFs.c	1
/src/opus/silk/NLSF_VQ_weights_laroia.c	1
/src/opus/silk/NLSF_encode.c	1
/src/opus/silk/NLSF_stabilize.c	1
/src/opus/silk/NLSF_VQ.c	1
/src/opus/silk/NLSF_del_dec_quant.c	1
/src/opus/silk/NLSF_decode.c	2
/src/opus/silk/fixed/residual_energy_FIX.c	1
/src/opus/silk/fixed/process_gains_FIX.c	1
/src/opus/silk/gain_quant.c	3
/src/opus/celt/entcode.h	6
/src/opus/celt/entcode.c	1
/src/opus/celt/mdct.c	1
/src/opus/celt/bands.c	22
/src/opus/celt/quant_bands.c	6
/src/opus/celt/laplace.c	2
/src/opus/celt/vq.c	13
/src/opus/celt/rate.c	2
/src/opus/celt/entdec.c	8
/src/opus/celt/rate.h	3
/src/opus/celt/cwrs.c	4

Fuzzer: opus_multistream_decode_fuzzer_floating

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	100	14.4%
gold	[1:9]	0	0.0%
yellow	[10:29]	3	0.43%
greenyellow	[30:49]	1	0.14%
lawngreen	50+	589	84.9%
All colors	693	100

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity	Unique Reachable Complexities	Unique Reachable Functions	All non-covered Complexity	All Reachable Complexity	Function Name	Function Callsite	Blocked Branch
137	137	1 : View List ['alg_quant']	137	137	quant_partition	call site: 00541	/src/opus/celt/bands.c:1116
31	31	1 : View List ['ec_enc_uint']	70	79	interp_bits2pulses	call site: 00459	/src/opus/celt/rate.c:398
22	22	1 : View List ['stereo_itheta']	161	350	compute_theta	call site: 00501	/src/opus/celt/bands.c:739
22	22	1 : View List ['ec_encode']	66	156	compute_theta	call site: 00518	/src/opus/celt/bands.c:790
22	22	1 : View List ['ec_encode']	66	156	compute_theta	call site: 00523	/src/opus/celt/bands.c:812
15	15	1 : View List ['ec_enc_bit_logp']	39	39	interp_bits2pulses	call site: 00469	/src/opus/celt/rate.c:415
15	15	1 : View List ['ec_enc_bit_logp']	15	35	compute_theta	call site: 00534	/src/opus/celt/bands.c:893
12	12	1 : View List ['ec_enc_bits']	12	468	quant_band_stereo	call site: 00594	/src/opus/celt/bands.c:1476
7	7	2 : View List ['intensity_stereo', 'stereo_split']	7	27	compute_theta	call site: 00530	/src/opus/celt/bands.c:870
5	5	1 : View List ['intensity_stereo']	20	49	compute_theta	call site: 00533	/src/opus/celt/bands.c:880
0	50	1 : View List ['silk_resampler']	0	50	silk_Decode	call site: 00301	/src/opus/silk/dec_API.c:398
0	2	1 : View List ['celt_exp2']	0	4	opus_decode_frame	call site: 00114	/src/opus/src/opus_decoder.c:661

Runtime coverage analysis

Covered functions

204

Functions that are reachable but not covered

24

Reachable functions

228

Percentage of reachable functions covered

89.47%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
/src/opus/tests/opus_multistream_decode_fuzzer.cc	1
/src/opus/src/opus_multistream_decoder.c	13
/src/opus/src/opus_decoder.c	12
/src/opus/silk/dec_API.c	5
/src/opus/src/opus_private.h	1
/src/opus/celt/celt_decoder.c	15
/src/opus/celt/modes.c	1
/src/opus/./celt/os_support.h	2
/src/opus/src/opus_multistream.c	4
/src/opus/silk/init_decoder.c	2
/src/opus/celt/x86/x86cpu.c	4
/src/opus/silk/CNG.c	3
/src/opus/silk/PLC.c	6
/src/opus/celt/celt.c	3
/src/opus/celt/arch.h	1
/src/opus/tests/../celt/os_support.h	2
/src/opus/src/opus.c	4
/src/opus/celt/entdec.c	11
/src/opus/silk/decoder_set_fs.c	1
/src/opus/silk/resampler.c	2
/src/opus/silk/stereo_decode_pred.c	2
/src/opus/silk/decode_indices.c	1
/src/opus/silk/NLSF_unpack.c	1
/src/opus/silk/decode_pulses.c	1
/src/opus/silk/shell_coder.c	2
/src/opus/silk/code_signs.c	1
/src/opus/silk/decode_frame.c	1
/src/opus/silk/decode_parameters.c	1
/src/opus/silk/gain_quant.c	1
/src/opus/silk/SigProc_FIX.h	6
/src/opus/silk/log2lin.c	1
/src/opus/silk/NLSF_decode.c	2
/src/opus/silk/NLSF_stabilize.c	1
/src/opus/silk/typedef.h	1
/src/opus/silk/sort.c	1
/src/opus/silk/NLSF2A.c	2
/src/opus/silk/LPC_fit.c	1
/src/opus/silk/bwexpander_32.c	1
/src/opus/silk/LPC_inv_pred_gain.c	2
/src/opus/silk/macros.h	1
/src/opus/silk/Inlines.h	4
/src/opus/silk/bwexpander.c	1
/src/opus/silk/decode_pitch.c	1
/src/opus/silk/decode_core.c	1
/src/opus/silk/LPC_analysis_filter.c	1
/src/opus/silk/sum_sqr_shift.c	1
/src/opus/silk/stereo_MS_to_LR.c	1
/src/opus/silk/resampler_private_up2_HQ.c	2
/src/opus/silk/resampler_private_IIR_FIR.c	2
/src/opus/silk/resampler_private_down_FIR.c	2
/src/opus/silk/resampler_private_AR2.c	1
/src/opus/./celt/entcode.h	1
/src/opus/celt/entcode.h	4
/src/opus/celt/x86/pitch_sse.c	3
/src/opus/celt/bands.c	20
/src/opus/celt/vq.c	8
/src/opus/celt/mathops.h	3
/src/opus/celt/mdct.c	1
/src/opus/celt/kiss_fft.c	5
/src/opus/celt/pitch.c	4
/src/opus/celt/celt_lpc.c	4
/src/opus/celt/quant_bands.c	3
/src/opus/celt/laplace.c	2
/src/opus/celt/entcode.c	1
/src/opus/celt/rate.c	2
/src/opus/celt/entenc.c	8
/src/opus/celt/mathops.c	2
/src/opus/celt/rate.h	3
/src/opus/celt/x86/vq_sse2.c	1
/src/opus/celt/cwrs.c	4
/src/opus/./celt/mathops.h	1
/src/opus/./celt/stack_alloc.h	1
/src/opus/src/extensions.c	1
/src/opus/./celt/float_cast.h	2

Fuzzer: opus_projection_encoder_fuzzer_fixed_qext

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	306	20.7%
gold	[1:9]	0	0.0%
yellow	[10:29]	2	0.13%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	1167	79.1%
All colors	1475	100

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity	Unique Reachable Complexities	Unique Reachable Functions	All non-covered Complexity	All Reachable Complexity	Function Name	Function Callsite	Blocked Branch
128	128	1 : View List ['surround_analysis']	128	6327	opus_multistream_encode_native	call site: 00182	/src/opus/src/opus_multistream_encoder.c:877
114	114	1 : View List ['cubic_quant_partition']	116	128	quant_band	call site: 01204	/src/opus/celt/bands.c:1333
97	97	1 : View List ['alg_unquant']	97	97	quant_partition	call site: 01287	/src/opus/celt/bands.c:1116
95	99	4 : View List ['ec_enc_depth', 'ec_tell_frac', 'median_of_5_val16', 'ec_dec_depth']	95	99	clt_compute_extra_allocation	call site: 01169	/src/opus/celt/rate.c:763
95	97	3 : View List ['cubic_quant', 'ec_tell_frac', 'cubic_unquant']	95	97	quant_partition	call site: 01287	/src/opus/celt/bands.c:1126
86	86	2 : View List ['celt_fatal', 'opus_packet_extensions_generate']	86	86	opus_repacketizer_out_range_impl	call site: 00364	/src/opus/src/repacketizer.c:308
57	69	4 : View List ['ec_enc_refine', 'ec_tell.830', 'op_pvq_search_extra', 'ec_enc_bits']	57	155	alg_quant	call site: 01325	/src/opus/celt/vq.c:584
48	48	2 : View List ['ms_get_preemph_mem', 'ms_get_window_mem']	176	7075	opus_multistream_encode_native	call site: 00173	/src/opus/src/opus_multistream_encoder.c:844
48	48	2 : View List ['ms_get_preemph_mem', 'ms_get_window_mem']	48	48	opus_multistream_encoder_init_impl	call site: 00116	/src/opus/src/opus_multistream_encoder.c:495
28	91	3 : View List ['ec_dec_uint', 'celt_sudiv', 'ec_enc_uint']	28	122	compute_theta	call site: 01268	/src/opus/celt/bands.c:848
28	28	1 : View List ['ec_dec_uint']	61	76	interp_bits2pulses	call site: 01135	/src/opus/celt/rate.c:398
18	24	3 : View List ['ec_dec_update', 'isqrt32', 'ec_decode']	52	158	compute_theta	call site: 01259	/src/opus/celt/bands.c:812

Runtime coverage analysis

Covered functions

400

Functions that are reachable but not covered

51

Reachable functions

399

Percentage of reachable functions covered

87.22%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Warning: The number of covered functions are larger than the number of reachable functions. This means that there are more functions covered at runtime than are extracted using static analysis. This is likely a result of the static analysis component failing to extract the right call graph or the coverage runtime being compiled with sanitizers in code that the static analysis has not analysed. This can happen if lto/gold is not used in all places that coverage instrumentation is used.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
/src/opus/tests/opus_projection_encoder_fuzzer.cc	1
/src/opus/src/opus_projection_encoder.c	12
/src/opus/celt/mathops.c	13
/src/opus/src/mapping_matrix.c	4
/src/opus/src/opus_private.h	1
/src/opus/src/opus_multistream_encoder.c	15
/src/opus/src/opus_encoder.c	22
/src/opus/silk/enc_API.c	4
/src/opus/celt/celt_encoder.c	25
/src/opus/celt/modes.c	2
/src/opus/./celt/os_support.h	2
/src/opus/celt/arch.h	1
/src/opus/celt/x86/x86cpu.c	4
/src/opus/src/opus_multistream.c	4
/src/opus/silk/init_encoder.c	1
/src/opus/silk/lin2log.c	1
/src/opus/silk/Inlines.h	4
/src/opus/silk/macros.h	1
/src/opus/silk/SigProc_FIX.h	5
/src/opus/silk/VAD.c	1
/src/opus/celt/celt.c	4
/src/opus/src/analysis.c	8
/src/opus/tests/../celt/os_support.h	2
/src/opus/celt/mdct.c	1
/src/opus/celt/mathops.h	11
/src/opus/celt/kiss_fft.c	7
/src/opus/celt/bands.c	23
/src/opus/celt/quant_bands.c	6
/src/opus/./celt/mathops.h	7
/src/opus/src/repacketizer.c	7
/src/opus/./celt/float_cast.h	1
/src/opus/src/mlp.c	5
/src/opus/./celt/arch.h	1
/src/opus/src/opus.c	4
/src/opus/src/opus_decoder.c	1
/src/opus/src/extensions.c	9
/src/opus/celt/entenc.c	14
/src/opus/silk/log2lin.c	1
/src/opus/./silk/typedef.h	1
/src/opus/silk/check_control_input.c	1
/src/opus/silk/control_codec.c	5
/src/opus/silk/resampler.c	2
/src/opus/silk/resampler_private_up2_HQ.c	2
/src/opus/silk/resampler_private_IIR_FIR.c	2
/src/opus/silk/resampler_private_down_FIR.c	2
/src/opus/silk/resampler_private_AR2.c	1
/src/opus/silk/control_audio_bandwidth.c	1
/src/opus/./silk/SigProc_FIX.h	5
/src/opus/silk/typedef.h	1
/src/opus/./celt/entcode.h	1
/src/opus/silk/stereo_encode_pred.c	2
/src/opus/silk/encode_indices.c	1
/src/opus/silk/NLSF_unpack.c	1
/src/opus/silk/encode_pulses.c	2
/src/opus/silk/shell_coder.c	3
/src/opus/silk/code_signs.c	1
/src/opus/silk/HP_variable_cutoff.c	1
/src/opus/silk/stereo_LR_to_MS.c	1
/src/opus/silk/stereo_find_predictor.c	1
/src/opus/silk/sum_sqr_shift.c	1
/src/opus/silk/inner_prod_aligned.c	1
/src/opus/silk/stereo_quant_pred.c	1
/src/opus/silk/fixed/encode_frame_FIX.c	3
/src/opus/silk/control_SNR.c	1
/src/opus/silk/LP_variable_cutoff.c	2
/src/opus/silk/biquad_alt.c	1
/src/opus/silk/fixed/find_pitch_lags_FIX.c	1
/src/opus/silk/fixed/apply_sine_window_FIX.c	1
/src/opus/silk/fixed/autocorr_FIX.c	1
/src/opus/celt/celt_lpc.c	2
/src/opus/celt/pitch.c	7
/src/opus/celt/pitch.h	2
/src/opus/silk/fixed/schur_FIX.c	1
/src/opus/./silk/macros.h	1
/src/opus/./silk/Inlines.h	5
/src/opus/silk/fixed/k2a_FIX.c	1
/src/opus/silk/bwexpander.c	1
/src/opus/silk/LPC_analysis_filter.c	1
/src/opus/silk/fixed/pitch_analysis_core_FIX.c	3
/src/opus/silk/resampler_down2.c	1
/src/opus/silk/resampler_down2_3.c	1
/src/opus/silk/fixed/vector_ops_FIX.c	2
/src/opus/silk/sort.c	3
/src/opus/silk/fixed/noise_shape_analysis_FIX.c	3
/src/opus/silk/sigm_Q15.c	1
/src/opus/silk/fixed/warped_autocorrelation_FIX.c	1
/src/opus/silk/fixed/schur64_FIX.c	1
/src/opus/silk/fixed/k2a_Q16_FIX.c	1
/src/opus/silk/bwexpander_32.c	1
/src/opus/silk/LPC_fit.c	1
/src/opus/silk/fixed/find_pred_coefs_FIX.c	1
/src/opus/silk/fixed/find_LTP_FIX.c	1
/src/opus/silk/fixed/corrMatrix_FIX.c	2
/src/opus/silk/quant_LTP_gains.c	1
/src/opus/silk/fixed/LTP_scale_ctrl_FIX.c	1
/src/opus/silk/fixed/LTP_analysis_filter_FIX.c	1
/src/opus/silk/fixed/find_LPC_FIX.c	1
/src/opus/silk/A2NLSF.c	4
/src/opus/silk/interpolate.c	1
/src/opus/silk/NLSF2A.c	2
/src/opus/silk/LPC_inv_pred_gain.c	2
/src/opus/silk/process_NLSFs.c	1
/src/opus/silk/NLSF_VQ_weights_laroia.c	1
/src/opus/silk/NLSF_encode.c	1
/src/opus/silk/NLSF_stabilize.c	1
/src/opus/silk/NLSF_VQ.c	1
/src/opus/silk/NLSF_del_dec_quant.c	1
/src/opus/silk/NLSF_decode.c	2
/src/opus/silk/fixed/residual_energy_FIX.c	1
/src/opus/silk/fixed/process_gains_FIX.c	1
/src/opus/silk/gain_quant.c	3
/src/opus/celt/entcode.h	6
/src/opus/celt/entcode.c	1
/src/opus/celt/laplace.c	2
/src/opus/celt/vq.c	21
/src/opus/celt/rate.c	6
/src/opus/celt/entdec.c	9
/src/opus/celt/rate.h	3
/src/opus/celt/cwrs.c	4

Fuzzer: opus_encode_fuzzer_floating_qext

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	1210	100.%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	0	0.0%
All colors	1210	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
1209	0	EP	call site: 00000	opus_encode

Runtime coverage analysis

Covered functions

0

Functions that are reachable but not covered

353

Reachable functions

353

Percentage of reachable functions covered

0.0%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
/src/opus/tests/opus_encode_fuzzer.cc	1
/src/opus/src/opus_encoder.c	25
/src/opus/silk/enc_API.c	4
/src/opus/src/opus_private.h	1
/src/opus/celt/celt_encoder.c	23
/src/opus/celt/modes.c	2
/src/opus/./celt/os_support.h	2
/src/opus/celt/x86/x86cpu.c	4
/src/opus/silk/init_encoder.c	1
/src/opus/silk/lin2log.c	1
/src/opus/silk/Inlines.h	4
/src/opus/silk/macros.h	1
/src/opus/silk/SigProc_FIX.h	5
/src/opus/silk/VAD.c	1
/src/opus/celt/arch.h	2
/src/opus/celt/celt.c	3
/src/opus/src/analysis.c	7
/src/opus/./celt/mathops.h	3
/src/opus/celt/kiss_fft.c	6
/src/opus/./celt/arch.h	1
/src/opus/./celt/float_cast.h	2
/src/opus/src/mlp.c	5
/src/opus/celt/x86/pitch_sse.c	3
/src/opus/src/repacketizer.c	6
/src/opus/src/opus.c	4
/src/opus/src/opus_decoder.c	1
/src/opus/src/extensions.c	9
/src/opus/celt/entenc.c	14
/src/opus/silk/log2lin.c	1
/src/opus/./silk/typedef.h	1
/src/opus/silk/check_control_input.c	1
/src/opus/silk/control_codec.c	5
/src/opus/silk/resampler.c	2
/src/opus/./silk/float/SigProc_FLP.h	2
/src/opus/silk/resampler_private_up2_HQ.c	2
/src/opus/silk/resampler_private_IIR_FIR.c	2
/src/opus/silk/resampler_private_down_FIR.c	2
/src/opus/silk/resampler_private_AR2.c	1
/src/opus/silk/control_audio_bandwidth.c	1
/src/opus/./silk/SigProc_FIX.h	4
/src/opus/silk/typedef.h	1
/src/opus/./celt/entcode.h	1
/src/opus/silk/stereo_encode_pred.c	2
/src/opus/silk/encode_indices.c	1
/src/opus/silk/NLSF_unpack.c	1
/src/opus/silk/encode_pulses.c	2
/src/opus/silk/shell_coder.c	3
/src/opus/silk/code_signs.c	1
/src/opus/silk/HP_variable_cutoff.c	1
/src/opus/silk/stereo_LR_to_MS.c	1
/src/opus/silk/stereo_find_predictor.c	1
/src/opus/silk/sum_sqr_shift.c	1
/src/opus/silk/inner_prod_aligned.c	1
/src/opus/silk/stereo_quant_pred.c	1
/src/opus/silk/float/encode_frame_FLP.c	3
/src/opus/silk/control_SNR.c	1
/src/opus/silk/LP_variable_cutoff.c	2
/src/opus/silk/biquad_alt.c	1
/src/opus/silk/float/SigProc_FLP.h	5
/src/opus/silk/float/find_pitch_lags_FLP.c	1
/src/opus/silk/float/apply_sine_window_FLP.c	1
/src/opus/silk/float/autocorrelation_FLP.c	1
/src/opus/silk/float/schur_FLP.c	1
/src/opus/silk/float/k2a_FLP.c	1
/src/opus/silk/float/bwexpander_FLP.c	1
/src/opus/silk/float/LPC_analysis_filter_FLP.c	6
/src/opus/silk/float/pitch_analysis_core_FLP.c	3
/src/opus/silk/resampler_down2.c	1
/src/opus/silk/resampler_down2_3.c	1
/src/opus/silk/float/energy_FLP.c	1
/src/opus/silk/float/sort_FLP.c	1
/src/opus/silk/float/noise_shape_analysis_FLP.c	4
/src/opus/silk/float/warped_autocorrelation_FLP.c	1
/src/opus/silk/float/find_pred_coefs_FLP.c	1
/src/opus/silk/float/find_LTP_FLP.c	1
/src/opus/silk/float/corrMatrix_FLP.c	2
/src/opus/silk/float/scale_vector_FLP.c	1
/src/opus/silk/float/wrappers_FLP.c	5
/src/opus/silk/quant_LTP_gains.c	1
/src/opus/silk/float/LTP_scale_ctrl_FLP.c	1
/src/opus/silk/float/LTP_analysis_filter_FLP.c	1
/src/opus/silk/float/scale_copy_vector_FLP.c	1
/src/opus/silk/float/find_LPC_FLP.c	1
/src/opus/silk/float/burg_modified_FLP.c	1
/src/opus/silk/A2NLSF.c	4
/src/opus/silk/bwexpander_32.c	1
/src/opus/silk/interpolate.c	1
/src/opus/silk/NLSF2A.c	2
/src/opus/silk/LPC_fit.c	1
/src/opus/silk/LPC_inv_pred_gain.c	2
/src/opus/silk/process_NLSFs.c	1
/src/opus/silk/NLSF_VQ_weights_laroia.c	1
/src/opus/silk/NLSF_encode.c	1
/src/opus/silk/NLSF_stabilize.c	1
/src/opus/silk/sort.c	2
/src/opus/silk/NLSF_VQ.c	1
/src/opus/silk/NLSF_del_dec_quant.c	1
/src/opus/silk/NLSF_decode.c	2
/src/opus/silk/float/residual_energy_FLP.c	1
/src/opus/silk/float/process_gains_FLP.c	1
/src/opus/silk/gain_quant.c	3
/src/opus/celt/entcode.h	6
/src/opus/celt/entcode.c	1
/src/opus/celt/mathops.h	6
/src/opus/celt/pitch.c	6
/src/opus/celt/celt_lpc.c	2
/src/opus/celt/mdct.c	1
/src/opus/celt/bands.c	23
/src/opus/celt/quant_bands.c	6
/src/opus/celt/laplace.c	2
/src/opus/celt/rate.c	6
/src/opus/celt/entdec.c	9
/src/opus/celt/vq.c	16
/src/opus/celt/mathops.c	1
/src/opus/celt/rate.h	3
/src/opus/celt/cwrs.c	4
/src/opus/celt/x86/vq_sse2.c	1

Fuzzer: opus_multistream_decode_fuzzer_fixed

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	114	14.9%
gold	[1:9]	0	0.0%
yellow	[10:29]	2	0.26%
greenyellow	[30:49]	2	0.26%
lawngreen	50+	645	84.5%
All colors	763	100

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity	Unique Reachable Complexities	Unique Reachable Functions	All non-covered Complexity	All Reachable Complexity	Function Name	Function Callsite	Blocked Branch
137	137	1 : View List ['alg_quant']	137	137	quant_partition	call site: 00598	/src/opus/celt/bands.c:1116
31	31	1 : View List ['ec_enc_uint']	70	79	interp_bits2pulses	call site: 00508	/src/opus/celt/rate.c:398
22	22	1 : View List ['stereo_itheta']	161	350	compute_theta	call site: 00550	/src/opus/celt/bands.c:739
22	22	1 : View List ['ec_encode']	66	156	compute_theta	call site: 00574	/src/opus/celt/bands.c:790
22	22	1 : View List ['ec_encode']	66	156	compute_theta	call site: 00579	/src/opus/celt/bands.c:812
15	15	1 : View List ['ec_enc_bit_logp']	39	39	interp_bits2pulses	call site: 00518	/src/opus/celt/rate.c:415
15	15	1 : View List ['ec_enc_bit_logp']	15	35	compute_theta	call site: 00591	/src/opus/celt/bands.c:893
12	12	1 : View List ['ec_enc_bits']	12	468	quant_band_stereo	call site: 00663	/src/opus/celt/bands.c:1476
7	7	2 : View List ['intensity_stereo', 'stereo_split']	7	27	compute_theta	call site: 00586	/src/opus/celt/bands.c:870
5	5	1 : View List ['intensity_stereo']	20	49	compute_theta	call site: 00590	/src/opus/celt/bands.c:880
0	50	1 : View List ['silk_resampler']	0	50	silk_Decode	call site: 00301	/src/opus/silk/dec_API.c:398
0	2	1 : View List ['celt_exp2']	0	4	opus_decode_frame	call site: 00114	/src/opus/src/opus_decoder.c:661

Runtime coverage analysis

Covered functions

221

Functions that are reachable but not covered

24

Reachable functions

244

Percentage of reachable functions covered

90.16%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
/src/opus/tests/opus_multistream_decode_fuzzer.cc	1
/src/opus/src/opus_multistream_decoder.c	13
/src/opus/src/opus_decoder.c	12
/src/opus/silk/dec_API.c	5
/src/opus/src/opus_private.h	1
/src/opus/celt/celt_decoder.c	15
/src/opus/celt/modes.c	1
/src/opus/./celt/os_support.h	2
/src/opus/src/opus_multistream.c	4
/src/opus/silk/init_decoder.c	2
/src/opus/celt/x86/x86cpu.c	4
/src/opus/silk/CNG.c	3
/src/opus/silk/PLC.c	6
/src/opus/celt/celt.c	4
/src/opus/celt/arch.h	2
/src/opus/tests/../celt/os_support.h	2
/src/opus/src/opus.c	3
/src/opus/celt/entdec.c	11
/src/opus/silk/decoder_set_fs.c	1
/src/opus/silk/resampler.c	2
/src/opus/silk/stereo_decode_pred.c	2
/src/opus/silk/decode_indices.c	1
/src/opus/silk/NLSF_unpack.c	1
/src/opus/silk/decode_pulses.c	1
/src/opus/silk/shell_coder.c	2
/src/opus/silk/code_signs.c	1
/src/opus/silk/decode_frame.c	1
/src/opus/silk/decode_parameters.c	1
/src/opus/silk/gain_quant.c	1
/src/opus/silk/SigProc_FIX.h	6
/src/opus/silk/log2lin.c	1
/src/opus/silk/NLSF_decode.c	2
/src/opus/silk/NLSF_stabilize.c	1
/src/opus/silk/typedef.h	1
/src/opus/silk/sort.c	1
/src/opus/silk/NLSF2A.c	2
/src/opus/silk/LPC_fit.c	1
/src/opus/silk/bwexpander_32.c	1
/src/opus/silk/LPC_inv_pred_gain.c	2
/src/opus/silk/macros.h	1
/src/opus/silk/Inlines.h	4
/src/opus/silk/bwexpander.c	1
/src/opus/silk/decode_pitch.c	1
/src/opus/silk/decode_core.c	1
/src/opus/silk/LPC_analysis_filter.c	1
/src/opus/silk/sum_sqr_shift.c	1
/src/opus/silk/stereo_MS_to_LR.c	1
/src/opus/silk/resampler_private_up2_HQ.c	2
/src/opus/silk/resampler_private_IIR_FIR.c	2
/src/opus/silk/resampler_private_down_FIR.c	2
/src/opus/silk/resampler_private_AR2.c	1
/src/opus/./celt/entcode.h	1
/src/opus/celt/entcode.h	4
/src/opus/celt/bands.c	20
/src/opus/celt/vq.c	13
/src/opus/celt/mathops.h	8
/src/opus/celt/mathops.c	11
/src/opus/celt/mdct.c	1
/src/opus/celt/kiss_fft.c	6
/src/opus/celt/pitch.c	5
/src/opus/celt/celt_lpc.c	3
/src/opus/celt/pitch.h	1
/src/opus/celt/fixed_generic.h	1
/src/opus/celt/quant_bands.c	3
/src/opus/celt/laplace.c	2
/src/opus/celt/entcode.c	1
/src/opus/celt/rate.c	2
/src/opus/celt/entenc.c	8
/src/opus/celt/rate.h	3
/src/opus/celt/cwrs.c	4
/src/opus/./celt/mathops.h	2
/src/opus/./celt/stack_alloc.h	1
/src/opus/src/extensions.c	1

Fuzzer: opus_projection_decoder_fuzzer_fixed

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	114	14.4%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	1	0.12%
lawngreen	50+	673	85.4%
All colors	788	100

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity	Unique Reachable Complexities	Unique Reachable Functions	All non-covered Complexity	All Reachable Complexity	Function Name	Function Callsite	Blocked Branch
137	137	1 : View List ['alg_quant']	137	137	quant_partition	call site: 00617	/src/opus/celt/bands.c:1116
31	31	1 : View List ['ec_enc_uint']	70	79	interp_bits2pulses	call site: 00527	/src/opus/celt/rate.c:398
22	22	1 : View List ['stereo_itheta']	161	350	compute_theta	call site: 00569	/src/opus/celt/bands.c:739
22	22	1 : View List ['ec_encode']	66	156	compute_theta	call site: 00593	/src/opus/celt/bands.c:790
22	22	1 : View List ['ec_encode']	66	156	compute_theta	call site: 00598	/src/opus/celt/bands.c:812
15	15	1 : View List ['ec_enc_bit_logp']	39	39	interp_bits2pulses	call site: 00537	/src/opus/celt/rate.c:415
15	15	1 : View List ['ec_enc_bit_logp']	15	35	compute_theta	call site: 00610	/src/opus/celt/bands.c:893
12	12	1 : View List ['ec_enc_bits']	12	468	quant_band_stereo	call site: 00682	/src/opus/celt/bands.c:1476
7	7	2 : View List ['intensity_stereo', 'stereo_split']	7	27	compute_theta	call site: 00605	/src/opus/celt/bands.c:870
5	5	1 : View List ['intensity_stereo']	20	49	compute_theta	call site: 00609	/src/opus/celt/bands.c:880
0	50	1 : View List ['silk_resampler']	0	50	silk_Decode	call site: 00320	/src/opus/silk/dec_API.c:398
0	2	1 : View List ['celt_exp2']	0	4	opus_decode_frame	call site: 00133	/src/opus/src/opus_decoder.c:661

Runtime coverage analysis

Covered functions

230

Functions that are reachable but not covered

24

Reachable functions

253

Percentage of reachable functions covered

90.51%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
/src/opus/tests/opus_projection_decoder_fuzzer.cc	1
/src/opus/tests/../celt/os_support.h	2
/src/opus/src/opus_projection_decoder.c	10
/src/opus/src/mapping_matrix.c	5
/src/opus/src/opus_private.h	1
/src/opus/src/opus_multistream_decoder.c	7
/src/opus/src/opus_decoder.c	12
/src/opus/silk/dec_API.c	5
/src/opus/celt/celt_decoder.c	15
/src/opus/celt/modes.c	1
/src/opus/./celt/os_support.h	2
/src/opus/celt/arch.h	2
/src/opus/src/opus_multistream.c	4
/src/opus/silk/init_decoder.c	2
/src/opus/celt/x86/x86cpu.c	4
/src/opus/silk/CNG.c	3
/src/opus/silk/PLC.c	6
/src/opus/celt/celt.c	4
/src/opus/src/opus.c	3
/src/opus/celt/entdec.c	11
/src/opus/silk/decoder_set_fs.c	1
/src/opus/silk/resampler.c	2
/src/opus/silk/stereo_decode_pred.c	2
/src/opus/silk/decode_indices.c	1
/src/opus/silk/NLSF_unpack.c	1
/src/opus/silk/decode_pulses.c	1
/src/opus/silk/shell_coder.c	2
/src/opus/silk/code_signs.c	1
/src/opus/silk/decode_frame.c	1
/src/opus/silk/decode_parameters.c	1
/src/opus/silk/gain_quant.c	1
/src/opus/silk/SigProc_FIX.h	6
/src/opus/silk/log2lin.c	1
/src/opus/silk/NLSF_decode.c	2
/src/opus/silk/NLSF_stabilize.c	1
/src/opus/silk/typedef.h	1
/src/opus/silk/sort.c	1
/src/opus/silk/NLSF2A.c	2
/src/opus/silk/LPC_fit.c	1
/src/opus/silk/bwexpander_32.c	1
/src/opus/silk/LPC_inv_pred_gain.c	2
/src/opus/silk/macros.h	1
/src/opus/silk/Inlines.h	4
/src/opus/silk/bwexpander.c	1
/src/opus/silk/decode_pitch.c	1
/src/opus/silk/decode_core.c	1
/src/opus/silk/LPC_analysis_filter.c	1
/src/opus/silk/sum_sqr_shift.c	1
/src/opus/silk/stereo_MS_to_LR.c	1
/src/opus/silk/resampler_private_up2_HQ.c	2
/src/opus/silk/resampler_private_IIR_FIR.c	2
/src/opus/silk/resampler_private_down_FIR.c	2
/src/opus/silk/resampler_private_AR2.c	1
/src/opus/./celt/entcode.h	1
/src/opus/celt/entcode.h	4
/src/opus/celt/bands.c	20
/src/opus/celt/vq.c	13
/src/opus/celt/mathops.h	8
/src/opus/celt/mathops.c	11
/src/opus/celt/mdct.c	1
/src/opus/celt/kiss_fft.c	6
/src/opus/celt/pitch.c	5
/src/opus/celt/celt_lpc.c	3
/src/opus/celt/pitch.h	1
/src/opus/celt/fixed_generic.h	1
/src/opus/celt/quant_bands.c	3
/src/opus/celt/laplace.c	2
/src/opus/celt/entcode.c	1
/src/opus/celt/rate.c	2
/src/opus/celt/entenc.c	8
/src/opus/celt/rate.h	3
/src/opus/celt/cwrs.c	4
/src/opus/./celt/mathops.h	2
/src/opus/./celt/stack_alloc.h	1
/src/opus/src/extensions.c	1

Fuzzer: opus_projection_encoder_fuzzer_floating_qext

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	298	21.9%
gold	[1:9]	0	0.0%
yellow	[10:29]	1	0.07%
greenyellow	[30:49]	1	0.07%
lawngreen	50+	1060	77.9%
All colors	1360	100

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity	Unique Reachable Complexities	Unique Reachable Functions	All non-covered Complexity	All Reachable Complexity	Function Name	Function Callsite	Blocked Branch
128	128	1 : View List ['surround_analysis']	128	6327	opus_multistream_encode_native	call site: 00182	/src/opus/src/opus_multistream_encoder.c:877
114	114	1 : View List ['cubic_quant_partition']	116	128	quant_band	call site: 01123	/src/opus/celt/bands.c:1333
97	97	1 : View List ['alg_unquant']	97	97	quant_partition	call site: 01196	/src/opus/celt/bands.c:1116
95	99	4 : View List ['ec_enc_depth', 'ec_tell_frac', 'median_of_5_val16', 'ec_dec_depth']	95	99	clt_compute_extra_allocation	call site: 01088	/src/opus/celt/rate.c:763
95	97	3 : View List ['cubic_quant', 'ec_tell_frac', 'cubic_unquant']	95	97	quant_partition	call site: 01196	/src/opus/celt/bands.c:1126
86	86	2 : View List ['celt_fatal', 'opus_packet_extensions_generate']	86	86	opus_repacketizer_out_range_impl	call site: 00334	/src/opus/src/repacketizer.c:308
57	69	4 : View List ['ec_enc_refine', 'ec_tell.830', 'op_pvq_search_extra', 'ec_enc_bits']	57	155	alg_quant	call site: 01225	/src/opus/celt/vq.c:584
48	48	2 : View List ['ms_get_preemph_mem', 'ms_get_window_mem']	176	7075	opus_multistream_encode_native	call site: 00173	/src/opus/src/opus_multistream_encoder.c:844
48	48	2 : View List ['ms_get_preemph_mem', 'ms_get_window_mem']	48	48	opus_multistream_encoder_init_impl	call site: 00116	/src/opus/src/opus_multistream_encoder.c:495
28	91	3 : View List ['ec_dec_uint', 'celt_sudiv', 'ec_enc_uint']	28	122	compute_theta	call site: 01178	/src/opus/celt/bands.c:848
28	28	1 : View List ['ec_dec_uint']	61	76	interp_bits2pulses	call site: 01054	/src/opus/celt/rate.c:398
18	24	3 : View List ['ec_dec_update', 'isqrt32', 'ec_decode']	52	158	compute_theta	call site: 01169	/src/opus/celt/bands.c:812

Runtime coverage analysis

Covered functions

381

Functions that are reachable but not covered

55

Reachable functions

390

Percentage of reachable functions covered

85.9%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
/src/opus/tests/opus_projection_encoder_fuzzer.cc	1
/src/opus/src/opus_projection_encoder.c	12
/src/opus/celt/mathops.c	1
/src/opus/src/mapping_matrix.c	4
/src/opus/src/opus_private.h	1
/src/opus/src/opus_multistream_encoder.c	15
/src/opus/src/opus_encoder.c	22
/src/opus/silk/enc_API.c	4
/src/opus/celt/celt_encoder.c	23
/src/opus/celt/modes.c	2
/src/opus/./celt/os_support.h	2
/src/opus/celt/arch.h	2
/src/opus/celt/x86/x86cpu.c	4
/src/opus/src/opus_multistream.c	4
/src/opus/silk/init_encoder.c	1
/src/opus/silk/lin2log.c	1
/src/opus/silk/Inlines.h	4
/src/opus/silk/macros.h	1
/src/opus/silk/SigProc_FIX.h	5
/src/opus/silk/VAD.c	1
/src/opus/celt/celt.c	3
/src/opus/src/analysis.c	7
/src/opus/tests/../celt/os_support.h	2
/src/opus/celt/x86/pitch_sse.c	3
/src/opus/./celt/arch.h	1
/src/opus/celt/mdct.c	1
/src/opus/celt/kiss_fft.c	6
/src/opus/celt/bands.c	23
/src/opus/celt/quant_bands.c	6
/src/opus/celt/mathops.h	6
/src/opus/./celt/mathops.h	4
/src/opus/src/repacketizer.c	7
/src/opus/./celt/float_cast.h	2
/src/opus/src/mlp.c	5
/src/opus/src/opus.c	4
/src/opus/src/opus_decoder.c	1
/src/opus/src/extensions.c	9
/src/opus/celt/entenc.c	14
/src/opus/silk/log2lin.c	1
/src/opus/./silk/typedef.h	1
/src/opus/silk/check_control_input.c	1
/src/opus/silk/control_codec.c	5
/src/opus/silk/resampler.c	2
/src/opus/./silk/float/SigProc_FLP.h	2
/src/opus/silk/resampler_private_up2_HQ.c	2
/src/opus/silk/resampler_private_IIR_FIR.c	2
/src/opus/silk/resampler_private_down_FIR.c	2
/src/opus/silk/resampler_private_AR2.c	1
/src/opus/silk/control_audio_bandwidth.c	1
/src/opus/./silk/SigProc_FIX.h	4
/src/opus/silk/typedef.h	1
/src/opus/./celt/entcode.h	1
/src/opus/silk/stereo_encode_pred.c	2
/src/opus/silk/encode_indices.c	1
/src/opus/silk/NLSF_unpack.c	1
/src/opus/silk/encode_pulses.c	2
/src/opus/silk/shell_coder.c	3
/src/opus/silk/code_signs.c	1
/src/opus/silk/HP_variable_cutoff.c	1
/src/opus/silk/stereo_LR_to_MS.c	1
/src/opus/silk/stereo_find_predictor.c	1
/src/opus/silk/sum_sqr_shift.c	1
/src/opus/silk/inner_prod_aligned.c	1
/src/opus/silk/stereo_quant_pred.c	1
/src/opus/silk/float/encode_frame_FLP.c	3
/src/opus/silk/control_SNR.c	1
/src/opus/silk/LP_variable_cutoff.c	2
/src/opus/silk/biquad_alt.c	1
/src/opus/silk/float/SigProc_FLP.h	5
/src/opus/silk/float/find_pitch_lags_FLP.c	1
/src/opus/silk/float/apply_sine_window_FLP.c	1
/src/opus/silk/float/autocorrelation_FLP.c	1
/src/opus/silk/float/schur_FLP.c	1
/src/opus/silk/float/k2a_FLP.c	1
/src/opus/silk/float/bwexpander_FLP.c	1
/src/opus/silk/float/LPC_analysis_filter_FLP.c	6
/src/opus/silk/float/pitch_analysis_core_FLP.c	3
/src/opus/silk/resampler_down2.c	1
/src/opus/silk/resampler_down2_3.c	1
/src/opus/silk/float/energy_FLP.c	1
/src/opus/silk/float/sort_FLP.c	1
/src/opus/silk/float/noise_shape_analysis_FLP.c	4
/src/opus/silk/float/warped_autocorrelation_FLP.c	1
/src/opus/silk/float/find_pred_coefs_FLP.c	1
/src/opus/silk/float/find_LTP_FLP.c	1
/src/opus/silk/float/corrMatrix_FLP.c	2
/src/opus/silk/float/scale_vector_FLP.c	1
/src/opus/silk/float/wrappers_FLP.c	5
/src/opus/silk/quant_LTP_gains.c	1
/src/opus/silk/float/LTP_scale_ctrl_FLP.c	1
/src/opus/silk/float/LTP_analysis_filter_FLP.c	1
/src/opus/silk/float/scale_copy_vector_FLP.c	1
/src/opus/silk/float/find_LPC_FLP.c	1
/src/opus/silk/float/burg_modified_FLP.c	1
/src/opus/silk/A2NLSF.c	4
/src/opus/silk/bwexpander_32.c	1
/src/opus/silk/interpolate.c	1
/src/opus/silk/NLSF2A.c	2
/src/opus/silk/LPC_fit.c	1
/src/opus/silk/LPC_inv_pred_gain.c	2
/src/opus/silk/process_NLSFs.c	1
/src/opus/silk/NLSF_VQ_weights_laroia.c	1
/src/opus/silk/NLSF_encode.c	1
/src/opus/silk/NLSF_stabilize.c	1
/src/opus/silk/sort.c	2
/src/opus/silk/NLSF_VQ.c	1
/src/opus/silk/NLSF_del_dec_quant.c	1
/src/opus/silk/NLSF_decode.c	2
/src/opus/silk/float/residual_energy_FLP.c	1
/src/opus/silk/float/process_gains_FLP.c	1
/src/opus/silk/gain_quant.c	3
/src/opus/celt/entcode.h	6
/src/opus/celt/entcode.c	1
/src/opus/celt/pitch.c	6
/src/opus/celt/celt_lpc.c	2
/src/opus/celt/laplace.c	2
/src/opus/celt/rate.c	6
/src/opus/celt/entdec.c	9
/src/opus/celt/vq.c	16
/src/opus/celt/rate.h	3
/src/opus/celt/cwrs.c	4
/src/opus/celt/x86/vq_sse2.c	1