The assembler in this project needs updating, but we want to enable the
bti-report=error flag globally.
Change-Id: Ia67dd7bfc9adce5a434f45a783ffbc109dfb4dd4
C++23 removed transitive includes so you need to add C++23 headers
directly to use its classes and functions. svc_enc_fuzzer needs the
algorithm header to use std::fill. I tested it in Android by building `m
svc_enc_fuzzer`.
Error:
external/libavc/fuzzer/svc_enc_fuzzer.cpp:347:5: error: no member named
'fill' in namespace 'std'; did you mean 'kill'?
347 | std::fill(mMemRecBufs.begin(), mMemRecBufs.end(), nullptr);
external/libavc/fuzzer/svc_enc_fuzzer.cpp:379:5: error: no member named
'fill' in namespace 'std'; did you mean 'kill'?
379 | std::fill(mMemRecBufs.begin(), mMemRecBufs.end(), nullptr);
external/libavc/fuzzer/svc_enc_fuzzer.cpp:1203:13: error: no member
named 'fill' in namespace 'std'; did you mean 'kill'?
1203 | std::fill(std::next(mEncBufs.mInputBuf.begin(),
bytesLeft), mEncBufs.mInputBuf.end(),
This patch includes handwritten avx2 intrinsics to optimize the libavc sw decoder
by reducing CPU-cycles overhead on module : libcodec2_soft_avcdec.
Playing 1024 resolution video playback on the Galley App with HW decoder disabled:
cpu-cycles overhead(%) reduced by ~15%.
Loading of video thumbnails on Gallery/Photos App is faster (we have pushed approx
more than 30 videos as a part of the usecase): cpu-cycles overhead(%) have reduced by ~10%.This patch is related to s/w video decoding.
Signed-off-by: Priyanka Bose <priyanka.bose@intel.corp-partner.google.com>
This change redefines the `cc_test` modules within the examples
directory as `cc_binary` modules.
Previously, these `cc_test` modules were effectively acting as wrappers
around executable binaries, solely for the purpose of generating test
executables. This approach did not allow for the direct installation of
these executables on devices.
Changing these modules to `cc_binary` allows the resulting executables
are produced as standalone binaries, enabling their deployment and
execution on test devices.
Bug: 414657128
Change-Id: I9caef8a5cf29c7d77b8bcd535f047a640c52285c
Currently avc encoder creates desired number of threads at
the start of every frame and joins after frame is processed.
This change modifies the thread creation part. Now the threads
are created at the start of the sequence. Kept alive through
out the sequence and joined at the end of the sequence. This
helps in reduction of thread creation and deletion overhead.
This change does not effect the encoded bitstream. That is,
encoded output with this change is same as encoded output
without this change.
Bug: 288998933
Test: avcenc -c enc.cfg
Change-Id: I98784169052a5f05c109aaf1de97a5e46d7a773d
In some erroneous fuzzer bistreams, the slice data requires more
parsing than what was implied by the distance between successive
start codes. The primary culprit is the NEXTBITS macro which requires
reading 4 additional bytes of the bitstream buffer. To alleviate
this, 16 bytes per 4x4 TU have been additionally allocated to the
bitstream buffer. Also, chroma bytes are added for 4:2:0/4:2:2.
This is in reference to commit-72315c1, where additional bytes were added to fix similar issue.
Bug = ossfuzz:42538616
Test: mvc_dec_fuzzer
In avc MaxFrameNum can be 65536 which is of 17 bits due to which
interger overflow was happening for i2_max_frm_num and
ui_max_frame_num. This has been fixed.
Bug: 369676522
Test: poc in bug description
Change-Id: I858eea6bf8eea1e2cee6d4a7c28a84705eb51792
- Added .vscode directory with tasks.json, settings.json, c_cpp_properties.json, and launch.json.
- Configures the Build button to build the project.
- Configures Run and Debug panel to run avcdec and avcenc test benches.
Test: Build
Change-Id: Ifee9130f0041f77907a1a668227bc049270898e1
- Changed hardcoded index [0] to loop variable [i] in ithread_mutex_init call
- Ensures correct initialization of both mutexes in the loop
Test: ./avcdec
Change-Id: I95ccd1eec5f18b5391befbcedf3546a119681b54
In some erroneous fuzzer bistreams, the slice data requires more
parsing than what was implied by the distance between successive
start codes. The primary culprit is the NEXTBITS macro which requires
reading 4 additional bytes of the bitstream buffer. To alleviate
this, 4 bytes per 4x4 TU have been additionally allocated to the
bitstream buffer.
Bug = ossfuzz:66989
Test: mvc_dec_fuzzer
After some time of running these in postsubmit, these will be changed
to presubmit.
- Added AvcEncTest to device-tests test suite
- Also run bpfmt on test/Android.bp
Bug: 304383609
Test: atest AvcEncTest
Change-Id: Ic18b25d8ed27313b6e3a984259af1215ae240c9e
Although the fag end of both the NALU and the bitstream buffer
is being parsed, not all FGC SEI symbols would have been
decoded semantically. This commit detects and returns an error
in this situation.
Bug = ossfuzz:65418
Test: mvc_dec_fuzzer
'isvce_svc_rc_params_validate' was not being invoked prior to
call to 'isvce_rc_init'. This resulted in an erroneous state
within RC's context wherein the instantaneous estimate for the
texture bits for the frame being processed exceeded INT_MAX.
'isvce_svc_rc_params_validate' has code that detects such a
state and is now being correctly invoked where apprpriate.
Bug = ossfuzz:63175
Test: svc_enc_fuzzer
There can be cases where there are multiple SEI payloads within a
single SEI NAL. In the particulkar case where the payload comprises
exclusiely of FGC data, the size of the NAL can exceed the size
of the 'dynamic bitstream buffer' which is used to pass the NALU
onto its appropriate parser.
This commit adds 'imvcd_bitstream_buf_realloc' which re-allocates
the 'dynamic bitstream buffer' such that any arbitrarily sized
NALU can be stored without a heap overflow.
Bug = ossfuzz:64286
Test: svc_enc_fuzzer
Before applying the config params (dimensions), the api is validating
the input buffer dimensions. This causes encode fails wrongly. This is
corrected.
The following lines of code have been removed to improve coverage -
[x] Functions -
- isvc_interleaved_copy
- isvc_16bit_interleaved_copy
- isvc_16bit_interleaved_memset
- isvc_iquant_itrans_recon_chroma_4x4_neon
- isvc_iquant_itrans_recon_chroma_4x4_sse42
- isvc_iquant_itrans_recon_4x4_dc_with_res_output_neon
- isvc_iquant_itrans_recon_res_dc_4x4_sse42
- isvc_iquant_itrans_recon_4x4_dc_with_res_accumulate_neon
- isvc_iquant_itrans_recon_res_dc_with_res_acc_4x4_sse42
- isvce_wait_for_thread
[x] Function pointer initialisations for the functions above
Test: svc_enc_fuzzer
