High level conclusions

Fuzzers reach 87.75% of cyclomatic complexity.

Fuzzers reach 81.69% of all functions.

Fuzzers reach 85.94% code coverage.

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.

Reachability and coverage overview

Functions statically reachable by fuzzers

558 / 683

Cyclomatic complexity statically reachable by fuzzers

5962 / 6794

Runtime code coverage of functions

587 / 683

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_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	7.01%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	53	92.9%
All colors	57	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
12	41	3 : View List ['celt_fatal', 'skip_extension_payload', 'skip_extension']	12	41	opus_extension_iterator_next_repeat	call site: 00032	/src/opus/src/extensions.c:191
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: 00051	/src/opus/src/repacketizer.c:294
0	0	None	6	296	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: 00041	/src/opus/src/repacketizer.c:222
0	0	None	6	59	opus_extension_iterator_next	call site: 00034	/src/opus/src/extensions.c:271
0	0	None	0	0	opus_extension_iterator_next	call site: 00025	/src/opus/src/extensions.c:229
0	0	None	0	0	opus_packet_extensions_parse	call site: 00040	/src/opus/src/extensions.c:372
0	0	None	0	0	opus_packet_extensions_generate	call site: 00050	/src/opus/src/extensions.c:634
0	0	None	0	0	skip_extension	call site: 00028	/src/opus/src/extensions.c:103
0	0	None	0	0	skip_extension	call site: 00028	/src/opus/src/extensions.c:107
0	0	None	0	0	write_extension_payload	call site: 00048	/src/opus/src/extensions.c:428

Runtime coverage analysis

Covered functions

27

Functions that are reachable but not covered

3

Reachable functions

31

Percentage of reachable functions covered

90.32%

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	10
/src/opus/celt/arch.h	1

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]	1	0.12%
yellow	[10:29]	4	0.49%
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
119	119	1 : View List ['alg_quant']	119	119	quant_partition	call site: 00604	/src/opus/celt/bands.c:1116
80	80	2 : View List ['ec_enc_uint', 'stereo_itheta']	80	320	cubic_quant_partition	call site: 00546	/src/opus/celt/bands.c:1216
55	55	2 : View List ['median_of_5_val16', 'ec_enc_depth']	55	57	clt_compute_extra_allocation	call site: 00496	/src/opus/celt/rate.c:769
49	49	1 : View List ['stereo_itheta']	197	316	compute_theta	call site: 00564	/src/opus/celt/bands.c:739
31	31	1 : View List ['ec_enc_uint']	70	79	interp_bits2pulses	call site: 00463	/src/opus/celt/rate.c:398
31	31	1 : View List ['ec_enc_uint']	64	84	compute_theta	call site: 00576	/src/opus/celt/bands.c:805
27	27	2 : View List ['stereo_split', 'intensity_stereo']	27	47	compute_theta	call site: 00591	/src/opus/celt/bands.c:870
25	25	1 : View List ['intensity_stereo']	40	69	compute_theta	call site: 00594	/src/opus/celt/bands.c:880
22	22	1 : View List ['ec_encode']	55	75	compute_theta	call site: 00573	/src/opus/celt/bands.c:790
22	22	1 : View List ['ec_encode']	55	75	compute_theta	call site: 00578	/src/opus/celt/bands.c:812
15	15	1 : View List ['ec_enc_bit_logp']	39	39	interp_bits2pulses	call site: 00473	/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

Runtime coverage analysis

Covered functions

217

Functions that are reachable but not covered

33

Reachable functions

250

Percentage of reachable functions covered

86.8%

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	6
/src/opus/./celt/float_cast.h	2

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]	0	0.0%
lawngreen	50+	674	85.5%
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
119	119	1 : View List ['alg_quant']	119	119	quant_partition	call site: 00618	/src/opus/celt/bands.c:1116
49	49	1 : View List ['stereo_itheta']	197	316	compute_theta	call site: 00570	/src/opus/celt/bands.c:739
31	31	1 : View List ['ec_enc_uint']	70	79	interp_bits2pulses	call site: 00528	/src/opus/celt/rate.c:398
31	31	1 : View List ['ec_enc_uint']	64	84	compute_theta	call site: 00597	/src/opus/celt/bands.c:805
27	27	2 : View List ['stereo_split', 'intensity_stereo']	27	47	compute_theta	call site: 00606	/src/opus/celt/bands.c:870
25	25	1 : View List ['intensity_stereo']	40	69	compute_theta	call site: 00610	/src/opus/celt/bands.c:880
22	22	1 : View List ['ec_encode']	55	75	compute_theta	call site: 00594	/src/opus/celt/bands.c:790
22	22	1 : View List ['ec_encode']	55	75	compute_theta	call site: 00599	/src/opus/celt/bands.c:812
15	15	1 : View List ['ec_enc_bit_logp']	39	39	interp_bits2pulses	call site: 00538	/src/opus/celt/rate.c:415
15	15	1 : View List ['ec_enc_bit_logp']	15	35	compute_theta	call site: 00611	/src/opus/celt/bands.c:893
12	12	1 : View List ['ec_enc_bits']	12	414	quant_band_stereo	call site: 00683	/src/opus/celt/bands.c:1476
0	50	1 : View List ['silk_resampler']	0	50	silk_Decode	call site: 00320	/src/opus/silk/dec_API.c:437

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_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]	0	0.0%
greenyellow	[30:49]	5	0.55%
lawngreen	50+	742	82.1%
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
119	119	1 : View List ['alg_quant']	119	119	quant_partition	call site: 00679	/src/opus/celt/bands.c:1116
80	80	2 : View List ['ec_enc_uint', 'stereo_itheta']	84	320	cubic_quant_partition	call site: 00613	/src/opus/celt/bands.c:1216
55	55	2 : View List ['median_of_5_val16', 'ec_enc_depth']	55	57	clt_compute_extra_allocation	call site: 00556	/src/opus/celt/rate.c:769
49	49	1 : View List ['stereo_itheta']	197	316	compute_theta	call site: 00638	/src/opus/celt/bands.c:739
31	31	1 : View List ['ec_enc_uint']	70	79	interp_bits2pulses	call site: 00523	/src/opus/celt/rate.c:398
31	31	1 : View List ['ec_enc_uint']	64	84	compute_theta	call site: 00650	/src/opus/celt/bands.c:805
27	27	2 : View List ['stereo_split', 'intensity_stereo']	27	47	compute_theta	call site: 00665	/src/opus/celt/bands.c:870
25	25	1 : View List ['intensity_stereo']	40	69	compute_theta	call site: 00669	/src/opus/celt/bands.c:880
22	22	1 : View List ['ec_encode']	55	75	compute_theta	call site: 00647	/src/opus/celt/bands.c:790
22	22	1 : View List ['ec_encode']	55	75	compute_theta	call site: 00652	/src/opus/celt/bands.c:812
15	15	1 : View List ['ec_enc_bit_logp']	39	39	interp_bits2pulses	call site: 00533	/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

Runtime coverage analysis

Covered functions

244

Functions that are reachable but not covered

33

Reachable functions

276

Percentage of reachable functions covered

88.04%

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	6
/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	1329	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	1329	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
1328	0	EP	call site: 00000	opus_encode

Runtime coverage analysis

Covered functions

0

Functions that are reachable but not covered

363

Reachable functions

363

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	10
/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_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	7.01%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	53	92.9%
All colors	57	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
12	41	3 : View List ['celt_fatal', 'skip_extension_payload', 'skip_extension']	12	41	opus_extension_iterator_next_repeat	call site: 00032	/src/opus/src/extensions.c:191
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: 00051	/src/opus/src/repacketizer.c:294
0	0	None	6	296	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: 00041	/src/opus/src/repacketizer.c:222
0	0	None	6	59	opus_extension_iterator_next	call site: 00034	/src/opus/src/extensions.c:271
0	0	None	0	0	opus_extension_iterator_next	call site: 00025	/src/opus/src/extensions.c:229
0	0	None	0	0	opus_packet_extensions_parse	call site: 00040	/src/opus/src/extensions.c:372
0	0	None	0	0	opus_packet_extensions_generate	call site: 00050	/src/opus/src/extensions.c:634
0	0	None	0	0	skip_extension	call site: 00028	/src/opus/src/extensions.c:103
0	0	None	0	0	skip_extension	call site: 00028	/src/opus/src/extensions.c:107
0	0	None	0	0	write_extension_payload	call site: 00048	/src/opus/src/extensions.c:428

Runtime coverage analysis

Covered functions

27

Functions that are reachable but not covered

3

Reachable functions

31

Percentage of reachable functions covered

90.32%

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	10
/src/opus/celt/arch.h	1

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]	3	0.36%
lawngreen	50+	689	83.2%
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
119	119	1 : View List ['alg_quant']	119	119	quant_partition	call site: 00623	/src/opus/celt/bands.c:1116
80	80	2 : View List ['ec_enc_uint', 'stereo_itheta']	80	320	cubic_quant_partition	call site: 00565	/src/opus/celt/bands.c:1216
55	55	2 : View List ['median_of_5_val16', 'ec_enc_depth']	55	57	clt_compute_extra_allocation	call site: 00515	/src/opus/celt/rate.c:769
49	49	1 : View List ['stereo_itheta']	197	316	compute_theta	call site: 00583	/src/opus/celt/bands.c:739
31	31	1 : View List ['ec_enc_uint']	70	79	interp_bits2pulses	call site: 00482	/src/opus/celt/rate.c:398
31	31	1 : View List ['ec_enc_uint']	64	84	compute_theta	call site: 00595	/src/opus/celt/bands.c:805
27	27	2 : View List ['stereo_split', 'intensity_stereo']	27	47	compute_theta	call site: 00610	/src/opus/celt/bands.c:870
25	25	1 : View List ['intensity_stereo']	40	69	compute_theta	call site: 00613	/src/opus/celt/bands.c:880
22	22	1 : View List ['ec_encode']	55	75	compute_theta	call site: 00592	/src/opus/celt/bands.c:790
22	22	1 : View List ['ec_encode']	55	75	compute_theta	call site: 00597	/src/opus/celt/bands.c:812
15	15	1 : View List ['ec_enc_bit_logp']	39	39	interp_bits2pulses	call site: 00492	/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

Runtime coverage analysis

Covered functions

226

Functions that are reachable but not covered

33

Reachable functions

259

Percentage of reachable functions covered

87.26%

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	6
/src/opus/./celt/float_cast.h	2

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	168	13.7%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	1053	86.2%
All colors	1221	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
100	100	1 : View List ['alg_unquant']	100	100	quant_partition	call site: 01103	/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: 00306	/src/opus/src/repacketizer.c:308
28	28	1 : View List ['ec_dec_uint']	61	76	interp_bits2pulses	call site: 01019	/src/opus/celt/rate.c:398
28	28	1 : View List ['ec_dec_uint']	34	81	compute_theta	call site: 01083	/src/opus/celt/bands.c:805
18	24	3 : View List ['ec_decode', 'ec_dec_update', 'isqrt32']	24	77	compute_theta	call site: 01085	/src/opus/celt/bands.c:812
18	18	2 : View List ['ec_decode', 'ec_dec_update']	24	71	compute_theta	call site: 01080	/src/opus/celt/bands.c:790
9	9	1 : View List ['ec_dec_bit_logp']	33	33	interp_bits2pulses	call site: 01023	/src/opus/celt/rate.c:415
9	9	1 : View List ['ec_dec_bit_logp']	9	29	compute_theta	call site: 01096	/src/opus/celt/bands.c:893
6	6	1 : View List ['ec_dec_bits']	6	408	quant_band_stereo	call site: 01157	/src/opus/celt/bands.c:1476
6	6	1 : View List ['celt_fatal']	6	6	check_control_input	call site: 00351	/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: 00364	/src/opus/silk/resampler.c:157

Runtime coverage analysis

Covered functions

378

Functions that are reachable but not covered

33

Reachable functions

365

Percentage of reachable functions covered

90.96%

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	10
/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_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	208	16.6%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	1	0.07%
lawngreen	50+	1042	83.2%
All colors	1251	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
134	134	1 : View List ['surround_analysis']	134	6727	opus_multistream_encode_native	call site: 00180	/src/opus/src/opus_multistream_encoder.c:877
100	100	1 : View List ['alg_unquant']	100	100	quant_partition	call site: 01130	/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: 00334	/src/opus/src/repacketizer.c:308
52	52	2 : View List ['ms_get_preemph_mem', 'ms_get_window_mem']	186	7519	opus_multistream_encode_native	call site: 00171	/src/opus/src/opus_multistream_encoder.c:844
52	52	2 : View List ['ms_get_preemph_mem', 'ms_get_window_mem']	52	52	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: 01046	/src/opus/celt/rate.c:398
28	28	1 : View List ['ec_dec_uint']	34	81	compute_theta	call site: 01110	/src/opus/celt/bands.c:805
18	24	3 : View List ['ec_decode', 'ec_dec_update', 'isqrt32']	24	77	compute_theta	call site: 01112	/src/opus/celt/bands.c:812
18	18	2 : View List ['ec_decode', 'ec_dec_update']	24	71	compute_theta	call site: 01107	/src/opus/celt/bands.c:790
9	9	1 : View List ['ec_dec_bit_logp']	33	33	interp_bits2pulses	call site: 01050	/src/opus/celt/rate.c:415
9	9	1 : View List ['ec_dec_bit_logp']	9	29	compute_theta	call site: 01123	/src/opus/celt/bands.c:893
6	6	1 : View List ['ec_dec_bits']	6	408	quant_band_stereo	call site: 01184	/src/opus/celt/bands.c:1476

Runtime coverage analysis

Covered functions

379

Functions that are reachable but not covered

40

Reachable functions

373

Percentage of reachable functions covered

89.28%

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	10
/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_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	7.01%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	53	92.9%
All colors	57	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
12	41	3 : View List ['celt_fatal', 'skip_extension_payload', 'skip_extension']	12	41	opus_extension_iterator_next_repeat	call site: 00032	/src/opus/src/extensions.c:191
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: 00051	/src/opus/src/repacketizer.c:294
0	0	None	6	296	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: 00041	/src/opus/src/repacketizer.c:222
0	0	None	6	59	opus_extension_iterator_next	call site: 00034	/src/opus/src/extensions.c:271
0	0	None	0	0	opus_extension_iterator_next	call site: 00025	/src/opus/src/extensions.c:229
0	0	None	0	0	opus_packet_extensions_parse	call site: 00040	/src/opus/src/extensions.c:372
0	0	None	0	0	opus_packet_extensions_generate	call site: 00045	/src/opus/src/extensions.c:606
0	0	None	0	0	opus_packet_extensions_generate	call site: 00050	/src/opus/src/extensions.c:634
0	0	None	0	0	skip_extension	call site: 00028	/src/opus/src/extensions.c:103
0	0	None	0	0	skip_extension	call site: 00028	/src/opus/src/extensions.c:107

Runtime coverage analysis

Covered functions

27

Functions that are reachable but not covered

3

Reachable functions

31

Percentage of reachable functions covered

90.32%

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	10
/src/opus/celt/arch.h	1

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	259	19.4%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	1	0.07%
lawngreen	50+	1071	80.4%
All colors	1331	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
100	100	1 : View List ['alg_unquant']	100	100	quant_partition	call site: 01171	/src/opus/celt/bands.c:1116
95	99	4 : View List ['ec_dec_depth', 'ec_tell_frac', 'ec_enc_depth', 'median_of_5_val16']	95	99	clt_compute_extra_allocation	call site: 01064	/src/opus/celt/rate.c:762
86	86	2 : View List ['celt_fatal', 'opus_packet_extensions_generate']	86	86	opus_repacketizer_out_range_impl	call site: 00308	/src/opus/src/repacketizer.c:308
38	204	5 : View List ['normalise_bands', 'amp2Log2', 'compute_band_energies', 'quant_coarse_energy', 'encode_qext_stereo_params']	38	1476	celt_encode_with_ec	call site: 01052	/src/opus/celt/celt_encoder.c:2603
28	28	1 : View List ['ec_dec_uint']	61	76	interp_bits2pulses	call site: 01030	/src/opus/celt/rate.c:398
28	28	1 : View List ['ec_dec_uint']	34	81	compute_theta	call site: 01143	/src/opus/celt/bands.c:805
18	24	3 : View List ['ec_decode', 'ec_dec_update', 'isqrt32']	24	77	compute_theta	call site: 01145	/src/opus/celt/bands.c:812
18	18	2 : View List ['ec_decode', 'ec_dec_update']	24	71	compute_theta	call site: 01140	/src/opus/celt/bands.c:790
10	33	3 : View List ['ec_enc_shrink', 'compute_qext_mode', 'ec_enc_bit_logp']	48	1676	celt_encode_with_ec	call site: 01017	/src/opus/celt/celt_encoder.c:2521
9	9	1 : View List ['ec_dec_bit_logp']	33	33	interp_bits2pulses	call site: 01034	/src/opus/celt/rate.c:415
9	9	1 : View List ['ec_dec_bit_logp']	9	29	compute_theta	call site: 01162	/src/opus/celt/bands.c:893
6	6	1 : View List ['celt_fatal']	101	105	clt_compute_extra_allocation	call site: 01063	/src/opus/celt/rate.c:749

Runtime coverage analysis

Covered functions

380

Functions that are reachable but not covered

49

Reachable functions

383

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_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	10
/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_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	299	21.9%
gold	[1:9]	0	0.0%
yellow	[10:29]	1	0.07%
greenyellow	[30:49]	2	0.14%
lawngreen	50+	1059	77.8%
All colors	1361	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
134	134	1 : View List ['surround_analysis']	134	6727	opus_multistream_encode_native	call site: 00182	/src/opus/src/opus_multistream_encoder.c:877
100	100	1 : View List ['alg_unquant']	100	100	quant_partition	call site: 01198	/src/opus/celt/bands.c:1116
95	99	4 : View List ['ec_dec_depth', 'ec_tell_frac', 'ec_enc_depth', 'median_of_5_val16']	95	99	clt_compute_extra_allocation	call site: 01091	/src/opus/celt/rate.c:762
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
52	52	2 : View List ['ms_get_preemph_mem', 'ms_get_window_mem']	186	7519	opus_multistream_encode_native	call site: 00173	/src/opus/src/opus_multistream_encoder.c:844
52	52	2 : View List ['ms_get_preemph_mem', 'ms_get_window_mem']	52	52	opus_multistream_encoder_init_impl	call site: 00116	/src/opus/src/opus_multistream_encoder.c:495
38	204	5 : View List ['normalise_bands', 'amp2Log2', 'compute_band_energies', 'quant_coarse_energy', 'encode_qext_stereo_params']	38	1476	celt_encode_with_ec	call site: 01079	/src/opus/celt/celt_encoder.c:2603
28	28	1 : View List ['ec_dec_uint']	61	76	interp_bits2pulses	call site: 01057	/src/opus/celt/rate.c:398
28	28	1 : View List ['ec_dec_uint']	34	81	compute_theta	call site: 01170	/src/opus/celt/bands.c:805
18	24	3 : View List ['ec_decode', 'ec_dec_update', 'isqrt32']	24	77	compute_theta	call site: 01172	/src/opus/celt/bands.c:812
18	18	2 : View List ['ec_decode', 'ec_dec_update']	24	71	compute_theta	call site: 01167	/src/opus/celt/bands.c:790
10	33	3 : View List ['ec_enc_shrink', 'compute_qext_mode', 'ec_enc_bit_logp']	48	1676	celt_encode_with_ec	call site: 01044	/src/opus/celt/celt_encoder.c:2521

Runtime coverage analysis

Covered functions

381

Functions that are reachable but not covered

56

Reachable functions

391

Percentage of reachable functions covered

85.68%

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	10
/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_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	7.01%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	53	92.9%
All colors	57	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
12	41	3 : View List ['celt_fatal', 'skip_extension_payload', 'skip_extension']	12	41	opus_extension_iterator_next_repeat	call site: 00032	/src/opus/src/extensions.c:191
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: 00051	/src/opus/src/repacketizer.c:294
0	0	None	6	296	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: 00041	/src/opus/src/repacketizer.c:222
0	0	None	6	59	opus_extension_iterator_next	call site: 00034	/src/opus/src/extensions.c:271
0	0	None	0	0	opus_extension_iterator_next	call site: 00025	/src/opus/src/extensions.c:229
0	0	None	0	0	opus_packet_extensions_parse	call site: 00040	/src/opus/src/extensions.c:372
0	0	None	0	0	opus_packet_extensions_generate	call site: 00050	/src/opus/src/extensions.c:634
0	0	None	0	0	skip_extension	call site: 00028	/src/opus/src/extensions.c:103
0	0	None	0	0	skip_extension	call site: 00028	/src/opus/src/extensions.c:107
0	0	None	0	0	write_extension_payload	call site: 00048	/src/opus/src/extensions.c:428

Runtime coverage analysis

Covered functions

27

Functions that are reachable but not covered

3

Reachable functions

31

Percentage of reachable functions covered

90.32%

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	10
/src/opus/celt/arch.h	1

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]	1	0.14%
yellow	[10:29]	2	0.28%
greenyellow	[30:49]	2	0.28%
lawngreen	50+	588	84.8%
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
119	119	1 : View List ['alg_quant']	119	119	quant_partition	call site: 00542	/src/opus/celt/bands.c:1116
49	49	1 : View List ['stereo_itheta']	197	316	compute_theta	call site: 00502	/src/opus/celt/bands.c:739
31	31	1 : View List ['ec_enc_uint']	70	79	interp_bits2pulses	call site: 00460	/src/opus/celt/rate.c:398
31	31	1 : View List ['ec_enc_uint']	64	84	compute_theta	call site: 00522	/src/opus/celt/bands.c:805
27	27	2 : View List ['stereo_split', 'intensity_stereo']	27	47	compute_theta	call site: 00531	/src/opus/celt/bands.c:870
25	25	1 : View List ['intensity_stereo']	40	69	compute_theta	call site: 00534	/src/opus/celt/bands.c:880
22	22	1 : View List ['ec_encode']	55	75	compute_theta	call site: 00519	/src/opus/celt/bands.c:790
22	22	1 : View List ['ec_encode']	55	75	compute_theta	call site: 00524	/src/opus/celt/bands.c:812
15	15	1 : View List ['ec_enc_bit_logp']	39	39	interp_bits2pulses	call site: 00470	/src/opus/celt/rate.c:415
15	15	1 : View List ['ec_enc_bit_logp']	15	35	compute_theta	call site: 00535	/src/opus/celt/bands.c:893
12	12	1 : View List ['ec_enc_bits']	12	414	quant_band_stereo	call site: 00595	/src/opus/celt/bands.c:1476
0	50	1 : View List ['silk_resampler']	0	50	silk_Decode	call site: 00301	/src/opus/silk/dec_API.c:437

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

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	207	15.4%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	3	0.22%
lawngreen	50+	1131	84.3%
All colors	1341	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
134	134	1 : View List ['surround_analysis']	134	6727	opus_multistream_encode_native	call site: 00180	/src/opus/src/opus_multistream_encoder.c:877
100	100	1 : View List ['alg_unquant']	100	100	quant_partition	call site: 01200	/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: 00353	/src/opus/src/repacketizer.c:308
52	52	2 : View List ['ms_get_preemph_mem', 'ms_get_window_mem']	186	7519	opus_multistream_encode_native	call site: 00171	/src/opus/src/opus_multistream_encoder.c:844
52	52	2 : View List ['ms_get_preemph_mem', 'ms_get_window_mem']	52	52	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: 01111	/src/opus/celt/rate.c:398
28	28	1 : View List ['ec_dec_uint']	34	81	compute_theta	call site: 01179	/src/opus/celt/bands.c:805
18	24	3 : View List ['ec_decode', 'ec_dec_update', 'isqrt32']	24	77	compute_theta	call site: 01181	/src/opus/celt/bands.c:812
18	18	2 : View List ['ec_decode', 'ec_dec_update']	24	71	compute_theta	call site: 01176	/src/opus/celt/bands.c:790
9	9	1 : View List ['ec_dec_bit_logp']	33	33	interp_bits2pulses	call site: 01115	/src/opus/celt/rate.c:415
9	9	1 : View List ['ec_dec_bit_logp']	9	29	compute_theta	call site: 01193	/src/opus/celt/bands.c:893
6	6	1 : View List ['ec_dec_bits']	6	408	quant_band_stereo	call site: 01272	/src/opus/celt/bands.c:1476

Runtime coverage analysis

Covered functions

394

Functions that are reachable but not covered

36

Reachable functions

378

Percentage of reachable functions covered

90.48%

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	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	10
/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_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	307	20.7%
gold	[1:9]	0	0.0%
yellow	[10:29]	2	0.13%
greenyellow	[30:49]	1	0.06%
lawngreen	50+	1168	79.0%
All colors	1478	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
134	134	1 : View List ['surround_analysis']	134	6727	opus_multistream_encode_native	call site: 00182	/src/opus/src/opus_multistream_encoder.c:877
100	100	1 : View List ['alg_unquant']	100	100	quant_partition	call site: 01291	/src/opus/celt/bands.c:1116
95	99	4 : View List ['ec_dec_depth', 'ec_tell_frac', 'ec_enc_depth', 'median_of_5_val16']	95	99	clt_compute_extra_allocation	call site: 01174	/src/opus/celt/rate.c:762
86	86	2 : View List ['celt_fatal', 'opus_packet_extensions_generate']	86	86	opus_repacketizer_out_range_impl	call site: 00366	/src/opus/src/repacketizer.c:308
52	52	2 : View List ['ms_get_preemph_mem', 'ms_get_window_mem']	186	7519	opus_multistream_encode_native	call site: 00173	/src/opus/src/opus_multistream_encoder.c:844
52	52	2 : View List ['ms_get_preemph_mem', 'ms_get_window_mem']	52	52	opus_multistream_encoder_init_impl	call site: 00116	/src/opus/src/opus_multistream_encoder.c:495
38	204	5 : View List ['normalise_bands', 'amp2Log2', 'compute_band_energies', 'quant_coarse_energy', 'encode_qext_stereo_params']	38	1476	celt_encode_with_ec	call site: 01162	/src/opus/celt/celt_encoder.c:2603
28	28	1 : View List ['ec_dec_uint']	61	76	interp_bits2pulses	call site: 01140	/src/opus/celt/rate.c:398
28	28	1 : View List ['ec_dec_uint']	34	81	compute_theta	call site: 01262	/src/opus/celt/bands.c:805
18	24	3 : View List ['ec_decode', 'ec_dec_update', 'isqrt32']	24	77	compute_theta	call site: 01264	/src/opus/celt/bands.c:812
18	18	2 : View List ['ec_decode', 'ec_dec_update']	24	71	compute_theta	call site: 01259	/src/opus/celt/bands.c:790
10	33	3 : View List ['ec_enc_shrink', 'compute_qext_mode', 'ec_enc_bit_logp']	48	1676	celt_encode_with_ec	call site: 01126	/src/opus/celt/celt_encoder.c:2521

Runtime coverage analysis

Covered functions

400

Functions that are reachable but not covered

52

Reachable functions

400

Percentage of reachable functions covered

87.0%

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	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	10
/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_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]	1	0.11%
yellow	[10:29]	3	0.34%
greenyellow	[30:49]	1	0.11%
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
119	119	1 : View List ['alg_quant']	119	119	quant_partition	call site: 00660	/src/opus/celt/bands.c:1116
80	80	2 : View List ['ec_enc_uint', 'stereo_itheta']	84	320	cubic_quant_partition	call site: 00594	/src/opus/celt/bands.c:1216
55	55	2 : View List ['median_of_5_val16', 'ec_enc_depth']	55	57	clt_compute_extra_allocation	call site: 00537	/src/opus/celt/rate.c:769
49	49	1 : View List ['stereo_itheta']	197	316	compute_theta	call site: 00619	/src/opus/celt/bands.c:739
31	31	1 : View List ['ec_enc_uint']	70	79	interp_bits2pulses	call site: 00504	/src/opus/celt/rate.c:398
31	31	1 : View List ['ec_enc_uint']	64	84	compute_theta	call site: 00631	/src/opus/celt/bands.c:805
27	27	2 : View List ['stereo_split', 'intensity_stereo']	27	47	compute_theta	call site: 00646	/src/opus/celt/bands.c:870
25	25	1 : View List ['intensity_stereo']	40	69	compute_theta	call site: 00650	/src/opus/celt/bands.c:880
22	22	1 : View List ['ec_encode']	55	75	compute_theta	call site: 00628	/src/opus/celt/bands.c:790
22	22	1 : View List ['ec_encode']	55	75	compute_theta	call site: 00633	/src/opus/celt/bands.c:812
15	15	1 : View List ['ec_enc_bit_logp']	39	39	interp_bits2pulses	call site: 00514	/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

Runtime coverage analysis

Covered functions

235

Functions that are reachable but not covered

33

Reachable functions

267

Percentage of reachable functions covered

87.64%

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	6
/src/opus/./celt/arch.h	1

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
119	119	1 : View List ['alg_quant']	119	119	quant_partition	call site: 00561	/src/opus/celt/bands.c:1116
49	49	1 : View List ['stereo_itheta']	197	316	compute_theta	call site: 00521	/src/opus/celt/bands.c:739
31	31	1 : View List ['ec_enc_uint']	70	79	interp_bits2pulses	call site: 00479	/src/opus/celt/rate.c:398
31	31	1 : View List ['ec_enc_uint']	64	84	compute_theta	call site: 00541	/src/opus/celt/bands.c:805
27	27	2 : View List ['stereo_split', 'intensity_stereo']	27	47	compute_theta	call site: 00550	/src/opus/celt/bands.c:870
25	25	1 : View List ['intensity_stereo']	40	69	compute_theta	call site: 00553	/src/opus/celt/bands.c:880
22	22	1 : View List ['ec_encode']	55	75	compute_theta	call site: 00538	/src/opus/celt/bands.c:790
22	22	1 : View List ['ec_encode']	55	75	compute_theta	call site: 00543	/src/opus/celt/bands.c:812
15	15	1 : View List ['ec_enc_bit_logp']	39	39	interp_bits2pulses	call site: 00489	/src/opus/celt/rate.c:415
15	15	1 : View List ['ec_enc_bit_logp']	15	35	compute_theta	call site: 00554	/src/opus/celt/bands.c:893
12	12	1 : View List ['ec_enc_bits']	12	414	quant_band_stereo	call site: 00614	/src/opus/celt/bands.c:1476
0	50	1 : View List ['silk_resampler']	0	50	silk_Decode	call site: 00320	/src/opus/silk/dec_API.c:437

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_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]	3	0.39%
greenyellow	[30:49]	2	0.26%
lawngreen	50+	644	84.4%
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
119	119	1 : View List ['alg_quant']	119	119	quant_partition	call site: 00599	/src/opus/celt/bands.c:1116
49	49	1 : View List ['stereo_itheta']	197	316	compute_theta	call site: 00551	/src/opus/celt/bands.c:739
31	31	1 : View List ['ec_enc_uint']	70	79	interp_bits2pulses	call site: 00509	/src/opus/celt/rate.c:398
31	31	1 : View List ['ec_enc_uint']	64	84	compute_theta	call site: 00578	/src/opus/celt/bands.c:805
27	27	2 : View List ['stereo_split', 'intensity_stereo']	27	47	compute_theta	call site: 00587	/src/opus/celt/bands.c:870
25	25	1 : View List ['intensity_stereo']	40	69	compute_theta	call site: 00591	/src/opus/celt/bands.c:880
22	22	1 : View List ['ec_encode']	55	75	compute_theta	call site: 00575	/src/opus/celt/bands.c:790
22	22	1 : View List ['ec_encode']	55	75	compute_theta	call site: 00580	/src/opus/celt/bands.c:812
15	15	1 : View List ['ec_enc_bit_logp']	39	39	interp_bits2pulses	call site: 00519	/src/opus/celt/rate.c:415
15	15	1 : View List ['ec_enc_bit_logp']	15	35	compute_theta	call site: 00592	/src/opus/celt/bands.c:893
12	12	1 : View List ['ec_enc_bits']	12	414	quant_band_stereo	call site: 00664	/src/opus/celt/bands.c:1476
0	50	1 : View List ['silk_resampler']	0	50	silk_Decode	call site: 00301	/src/opus/silk/dec_API.c:437

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_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	269	18.5%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	2	0.13%
lawngreen	50+	1177	81.2%
All colors	1448	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
100	100	1 : View List ['alg_unquant']	100	100	quant_partition	call site: 01264	/src/opus/celt/bands.c:1116
95	99	4 : View List ['ec_dec_depth', 'ec_tell_frac', 'ec_enc_depth', 'median_of_5_val16']	95	99	clt_compute_extra_allocation	call site: 01147	/src/opus/celt/rate.c:762
86	86	2 : View List ['celt_fatal', 'opus_packet_extensions_generate']	86	86	opus_repacketizer_out_range_impl	call site: 00338	/src/opus/src/repacketizer.c:308
38	204	5 : View List ['normalise_bands', 'amp2Log2', 'compute_band_energies', 'quant_coarse_energy', 'encode_qext_stereo_params']	38	1476	celt_encode_with_ec	call site: 01135	/src/opus/celt/celt_encoder.c:2603
28	28	1 : View List ['ec_dec_uint']	61	76	interp_bits2pulses	call site: 01113	/src/opus/celt/rate.c:398
28	28	1 : View List ['ec_dec_uint']	34	81	compute_theta	call site: 01235	/src/opus/celt/bands.c:805
18	24	3 : View List ['ec_decode', 'ec_dec_update', 'isqrt32']	24	77	compute_theta	call site: 01237	/src/opus/celt/bands.c:812
18	18	2 : View List ['ec_decode', 'ec_dec_update']	24	71	compute_theta	call site: 01232	/src/opus/celt/bands.c:790
10	33	3 : View List ['ec_enc_shrink', 'compute_qext_mode', 'ec_enc_bit_logp']	48	1676	celt_encode_with_ec	call site: 01099	/src/opus/celt/celt_encoder.c:2521
9	9	1 : View List ['ec_dec_bit_logp']	33	33	interp_bits2pulses	call site: 01117	/src/opus/celt/rate.c:415
9	9	1 : View List ['ec_dec_bit_logp']	9	29	compute_theta	call site: 01255	/src/opus/celt/bands.c:893
6	6	1 : View List ['celt_fatal']	101	105	clt_compute_extra_allocation	call site: 01146	/src/opus/celt/rate.c:749

Runtime coverage analysis

Covered functions

399

Functions that are reachable but not covered

45

Reachable functions

392

Percentage of reachable functions covered

88.52%

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_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	10
/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_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	169	12.8%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	1142	87.1%
All colors	1311	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
100	100	1 : View List ['alg_unquant']	100	100	quant_partition	call site: 01173	/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: 00325	/src/opus/src/repacketizer.c:308
28	28	1 : View List ['ec_dec_uint']	61	76	interp_bits2pulses	call site: 01084	/src/opus/celt/rate.c:398
28	28	1 : View List ['ec_dec_uint']	34	81	compute_theta	call site: 01152	/src/opus/celt/bands.c:805
18	24	3 : View List ['ec_decode', 'ec_dec_update', 'isqrt32']	24	77	compute_theta	call site: 01154	/src/opus/celt/bands.c:812
18	18	2 : View List ['ec_decode', 'ec_dec_update']	24	71	compute_theta	call site: 01149	/src/opus/celt/bands.c:790
9	9	1 : View List ['ec_dec_bit_logp']	33	33	interp_bits2pulses	call site: 01088	/src/opus/celt/rate.c:415
9	9	1 : View List ['ec_dec_bit_logp']	9	29	compute_theta	call site: 01166	/src/opus/celt/bands.c:893
6	6	1 : View List ['ec_dec_bits']	6	408	quant_band_stereo	call site: 01245	/src/opus/celt/bands.c:1476
6	6	1 : View List ['celt_fatal']	6	8	silk_P_Ana_calc_energy_st3	call site: 00666	/src/opus/silk/fixed/pitch_analysis_core_FIX.c:665
6	6	1 : View List ['celt_fatal']	6	6	check_control_input	call site: 00370	/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

Runtime coverage analysis

Covered functions

393

Functions that are reachable but not covered

29

Reachable functions

370

Percentage of reachable functions covered

92.16%

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.

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	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	10
/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_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	22.1%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	2	0.16%
lawngreen	50+	941	77.7%
All colors	1211	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
55	55	2 : View List ['median_of_5_val16', 'ec_enc_depth']	55	57	clt_compute_extra_allocation	call site: 00949	/src/opus/celt/rate.c:769
38	204	5 : View List ['normalise_bands', 'amp2Log2', 'compute_band_energies', 'quant_coarse_energy', 'encode_qext_stereo_params']	38	1476	celt_encode_with_ec	call site: 00937	/src/opus/celt/celt_encoder.c:2603
12	41	3 : View List ['celt_fatal', 'skip_extension_payload', 'skip_extension']	12	41	opus_extension_iterator_next_repeat	call site: 00169	/src/opus/src/extensions.c:191
6	6	1 : View List ['celt_fatal']	6	8	silk_P_Ana_calc_energy_st3	call site: 00516	/src/opus/silk/fixed/pitch_analysis_core_FIX.c:665
6	6	1 : View List ['celt_fatal']	6	6	check_control_input	call site: 00234	/src/opus/silk/check_control_input.c:103
6	6	1 : View List ['celt_fatal']	6	6	silk_InitEncoder	call site: 00032	/src/opus/silk/enc_API.c:97
4	4	1 : View List ['compute_redundancy_bytes']	10	10640	opus_encode_frame_native	call site: 00726	/src/opus/src/opus_encoder.c:2167
0	518	4 : View List ['ec_enc_init', 'ec_tell_frac', 'quant_fine_energy', 'quant_all_bands']	0	622	celt_encode_with_ec	call site: 00965	/src/opus/celt/celt_encoder.c:2644
0	134	1 : View List ['surround_analysis']	0	6727	opus_multistream_encode_native	call site: 00000	/src/opus/src/opus_multistream_encoder.c:877
0	119	1 : View List ['alg_quant']	0	119	quant_partition	call site: 01056	/src/opus/celt/bands.c:1116
0	100	1 : View List ['silk_resampler']	0	172	silk_setup_resamplers	call site: 00244	/src/opus/silk/control_codec.c:144
0	80	2 : View List ['ec_enc_uint', 'stereo_itheta']	0	320	cubic_quant_partition	call site: 00999	/src/opus/celt/bands.c:1216

Runtime coverage analysis

Covered functions

602

Functions that are reachable but not covered

25

Reachable functions

354

Percentage of reachable functions covered

92.94%

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_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	10
/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_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	148	12.4%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	2	0.16%
lawngreen	50+	1041	87.4%
All colors	1191	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
55	55	2 : View List ['median_of_5_val16', 'ec_enc_depth']	55	57	clt_compute_extra_allocation	call site: 00000	/src/opus/celt/rate.c:769
38	204	5 : View List ['normalise_bands', 'amp2Log2', 'compute_band_energies', 'quant_coarse_energy', 'encode_qext_stereo_params']	38	1476	celt_encode_with_ec	call site: 00991	/src/opus/celt/celt_encoder.c:2603
12	41	3 : View List ['celt_fatal', 'skip_extension_payload', 'skip_extension']	12	41	opus_extension_iterator_next_repeat	call site: 00180	/src/opus/src/extensions.c:191
6	6	1 : View List ['celt_fatal']	6	8	silk_P_Ana_calc_energy_st3	call site: 00541	/src/opus/silk/fixed/pitch_analysis_core_FIX.c:665
6	6	1 : View List ['celt_fatal']	6	6	check_control_input	call site: 00245	/src/opus/silk/check_control_input.c:103
6	6	1 : View List ['celt_fatal']	6	6	silk_InitEncoder	call site: 00032	/src/opus/silk/enc_API.c:97
4	4	1 : View List ['compute_redundancy_bytes']	10	10640	opus_encode_frame_native	call site: 00766	/src/opus/src/opus_encoder.c:2167
0	518	4 : View List ['ec_enc_init', 'ec_tell_frac', 'quant_fine_energy', 'quant_all_bands']	0	622	celt_encode_with_ec	call site: 00994	/src/opus/celt/celt_encoder.c:2644
0	134	1 : View List ['surround_analysis']	0	6727	opus_multistream_encode_native	call site: 00000	/src/opus/src/opus_multistream_encoder.c:877
0	119	1 : View List ['alg_quant']	0	119	quant_partition	call site: 01058	/src/opus/celt/bands.c:1116
0	100	1 : View List ['silk_resampler']	0	172	silk_setup_resamplers	call site: 00255	/src/opus/silk/control_codec.c:144
0	80	2 : View List ['ec_enc_uint', 'stereo_itheta']	0	320	cubic_quant_partition	call site: 00000	/src/opus/celt/bands.c:1216

Runtime coverage analysis

Covered functions

602

Functions that are reachable but not covered

13

Reachable functions

341

Percentage of reachable functions covered

96.19%

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_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	10
/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_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	183	16.6%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	2	0.18%
lawngreen	50+	915	83.1%
All colors	1100	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
55	55	2 : View List ['median_of_5_val16', 'ec_enc_depth']	55	57	clt_compute_extra_allocation	call site: 00000	/src/opus/celt/rate.c:769
38	204	5 : View List ['normalise_bands', 'amp2Log2', 'compute_band_energies', 'quant_coarse_energy', 'encode_qext_stereo_params']	38	1476	celt_encode_with_ec	call site: 00925	/src/opus/celt/celt_encoder.c:2603
12	41	3 : View List ['celt_fatal', 'skip_extension_payload', 'skip_extension']	12	41	opus_extension_iterator_next_repeat	call site: 00166	/src/opus/src/extensions.c:191
6	6	1 : View List ['celt_fatal']	6	8	silk_P_Ana_calc_energy_st3	call site: 00513	/src/opus/silk/fixed/pitch_analysis_core_FIX.c:665
6	6	1 : View List ['celt_fatal']	6	6	check_control_input	call site: 00231	/src/opus/silk/check_control_input.c:103
6	6	1 : View List ['celt_fatal']	6	6	silk_InitEncoder	call site: 00032	/src/opus/silk/enc_API.c:97
4	4	1 : View List ['compute_redundancy_bytes']	10	10640	opus_encode_frame_native	call site: 00723	/src/opus/src/opus_encoder.c:2167
0	518	4 : View List ['ec_enc_init', 'ec_tell_frac', 'quant_fine_energy', 'quant_all_bands']	0	622	celt_encode_with_ec	call site: 00928	/src/opus/celt/celt_encoder.c:2644
0	134	1 : View List ['surround_analysis']	0	6727	opus_multistream_encode_native	call site: 00000	/src/opus/src/opus_multistream_encoder.c:877
0	119	1 : View List ['alg_quant']	0	119	quant_partition	call site: 00987	/src/opus/celt/bands.c:1116
0	100	1 : View List ['silk_resampler']	0	172	silk_setup_resamplers	call site: 00241	/src/opus/silk/control_codec.c:144
0	80	2 : View List ['ec_enc_uint', 'stereo_itheta']	0	320	cubic_quant_partition	call site: 00000	/src/opus/celt/bands.c:1216

Runtime coverage analysis

Covered functions

602

Functions that are reachable but not covered

16

Reachable functions

336

Percentage of reachable functions covered

95.24%

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_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	10
/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