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623 Commits 2 Branches 28 Tags 25 MiB
a32171340e
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78 Commits

Author SHA1 Message Date
Janne Grunau
a32171340e do not build the allocation fail fuzzer when lto is enabled 
Link time optimization and '--wrap' seems to not work together.
Fixes #219.
 2018-12-11 13:48:28 +00:00
Janne Grunau
8bc73da355 fuzzing: add memory allocation fail fuzzer 
Depends on posix_memalign and a linker supporting '--wrap' to wrap
arbitrary symbols.
 2018-12-10 22:27:05 +01:00
Janne Grunau
c49680e629 checkasm: replace rand() with xorshift xor128 
Reduces the aarch64 checkasm run time from 22s to 2.4s.
 2018-12-08 19:35:35 +01:00
Henrik Gramner
0b6ee30eab checkasm: Try to handle crashes more gracefully 
Attempt to catch SIGFPE, SIGILL, and SIGSEGV and flag the current test as
failed instead of aborting abruptly.
 2018-12-07 18:57:18 +01:00
Ronald S. Bultje
c3980e394d 12 bits/component support 2018-12-05 18:21:05 -05:00
Ronald S. Bultje
2e6c8a92d2 Change type of MC intermediates from coef to int16_t 
Coef was originally chosen to accomodate 12 bits/component with
4 extra precision intermediates + some under/overflow range, but
it turns out that 12 bits/component only uses 2 extra precision
intermediates, so we don't need coef.
 2018-12-05 18:17:55 -05:00
Henrik Gramner
d6770f9344 Add ipred_z1 AVX2 asm 2018-12-05 01:42:14 +01:00
Ronald S. Bultje
70fb01d8c7 Make per-width versions of cfl_ac 
Also use aligned reads and writes in sub_loop, and integrate sum_loop into
the main loop.

before:
cfl_ac_420_w4_8bpc_c: 367.4
cfl_ac_420_w4_8bpc_avx2: 72.8
cfl_ac_420_w8_8bpc_c: 621.6
cfl_ac_420_w8_8bpc_avx2: 85.1
cfl_ac_420_w16_8bpc_c: 983.4
cfl_ac_420_w16_8bpc_avx2: 141.0

after:
cfl_ac_420_w4_8bpc_c: 376.2
cfl_ac_420_w4_8bpc_avx2: 28.5
cfl_ac_420_w8_8bpc_c: 607.2
cfl_ac_420_w8_8bpc_avx2: 29.9
cfl_ac_420_w16_8bpc_c: 962.1
cfl_ac_420_w16_8bpc_avx2: 48.8
 2018-12-03 22:10:38 +01:00
Francois Cartegnie
08184fd81d checkasm: add --list tests 2018-11-28 23:43:39 +01:00
Nathan E. Egge
560dc6848a Reset the random seed when testing each CPU type. 
Any benchmark that uses random data as input gives bunk results as it
 currently uses differently random data on each run.
This now makes any non-determinism in the tests repeatable across each
 call to check_cpu_flags() and checkasm_check_func().
 2018-11-27 10:39:27 -05:00
Janne Grunau
bbcaf41155 fuzzer: use dav1d_parse_sequence_header() 
Should increase function coverage in oss-fuzz to 100%.
 2018-11-26 12:51:30 +01:00
David Michael Barr
0e3c21979b checkasm: Add unit tests for chroma-from-luma subsampling 2018-11-24 00:59:49 +09:00
James Almer
32accaa47f
dav1d_fuzzer: include config.h before other headers 
Fixes warnings about redefinition of _WIN32_WINNT on Windows targets
introduced by b716083c7a.
 2018-11-20 19:16:11 -03:00
Janne Grunau
b716083c7a fuzzer: mask all CPU flags under memory sanitizer 2018-11-20 22:01:58 +01:00
Marvin Scholz
b3c522d5c0 build: Only add libdav1d_nasm_objs if needed 
Current versions of meson have a bug that causes the need to add
the nasm generated objects to checkasm, even though this should
already be covered by the extract_all_objects() for libdav1d.
Meson versions >= 0.48.999 (that is, Meson 0.49 and development
versions states of that on git) fixed this issue so now adding
this is not longer needed.
Adding it regardless would actually cause an error because of
symbols being present twice.
 2018-11-19 22:25:41 +01:00
Janne Grunau
623132aca2 checkasm: fix undefined signed int left shift by 31 in loopfilter test 2018-11-17 00:03:28 +01:00
Janne Grunau
14388c3c6b call dav1d_get_picture() until it returns -EAGAIN for draining 
With the decoupled decoding data there might be remaining input data during
draining which can cause bitstream parsing errors.
 2018-11-15 22:29:05 +01:00
Janne Grunau
a79cebf2e6 dav1d_fuzzer: skip empty frames to avoid assertions after 026069693e 2018-11-14 16:17:12 +01:00
James Almer
026069693e
implement a decoupled decode API 2018-11-13 21:13:27 -03:00
Ronald S. Bultje
2f251bd115 Add a max_width/height argument to angular_ipred_fn 
This is used in z2 to limit the number of pixels over which the
filter is applied, as per "numPx" in 7.11.2.4 point 4 in the AV1
specification. This only applies to z2, because in z1/3, the edge
filter is (incomprehensibly) lengtened by the opposite side's edge
length, which undoes the limit on the filter length (like a bug
undoing another bug).

I admit the code is getting rather complex, so we may want to
redesign this to make writing SIMD easier.
 2018-11-12 16:31:17 +01:00
Henrik Gramner
58fc516596 Split MC blend 
The mstride == 0, mstride == 1, and mstride == w cases are very different
from each other, and splitting them into separate functions makes it easier
top optimize them.

Also add some further optimizations to the AVX2 asm that became possible
after this change.
 2018-11-10 02:40:44 +01:00
Henrik Gramner
e4fbbbce67 Add blend AVX2 asm 2018-11-08 08:32:17 +01:00
Henrik Gramner
8676fda34c Add blend checkasm unit test 2018-11-08 08:32:17 +01:00
Ronald S. Bultje
47a581a53d Change emu_edge function argument order for easier SIMD 2018-11-07 20:59:50 +01:00
Ronald S. Bultje
404a8fbfb9 Add emu_edge checkasm unit test 2018-11-07 20:59:50 +01:00
Martin Storsjö
17426a6a44 checkasm: Don't benchmark all the 8tap filters 
This significantly reduces the runtime when benchmarking. For all
practical cases, it is enough to just benchmark one version of
the 8tap filter.
 2018-11-06 14:58:35 +01:00
Martin Storsjö
84b7a86153 checkasm: Extend mc testing for any combination of 2-32 x 2-32, for OBMC 
av1-1-b8-00-quantizer-55, -56 and -59 actually invokes the mc function
with e.g. 2x16.
 2018-11-06 14:54:43 +01:00
Henrik Gramner
22e144fb4c Add checkasm unit tests for warp8x8 and warp8x8t 2018-11-05 17:52:42 +01:00
Ronald S. Bultje
4a499fd51a Add AVX2 implementation for SGR looprestoration 
Total decoding time for first 1000 frames of TwxVOYxoukU:
after: 0m3.761s
before: 0m6.868s

Cycle times:
selfguided_3x3_8bpc_c: 438865.8
selfguided_3x3_8bpc_avx2: 112522.6
selfguided_5x5_8bpc_c: 326938.3
selfguided_5x5_8bpc_avx2: 75850.1
selfguided_mix_8bpc_c: 755980.5
selfguided_mix_8bpc_avx2: 195930.3
 2018-11-05 17:32:35 +01:00
Ronald S. Bultje
7d1d7d2807 Add unit test for SGR looprestoration 2018-11-05 17:32:35 +01:00
Janne Grunau
124653109d fuzzing: limit maximum frame size to 4kx4k 
Avoid out of memory (2Gb) or time out (25s) issues in oss-fuzz.
 2018-10-30 22:58:23 +01:00
Martin Storsjö
fa93b8ffd3 meson: Simplify the name of the checkasm test target 
This simplifies running specifically this test by "meson test checkasm".
 2018-10-30 23:31:51 +02:00
Marvin Scholz
4a535b9fbb Do not run other tests parallel with checkasm test 
This would result in weird output, as checkasm outputs several lines.
 2018-10-30 13:39:43 +01:00
Marvin Scholz
ea70793450 Add option to include extra testdata tests 2018-10-30 13:39:43 +01:00
Janne Grunau
c52cc17a7e API: constify Dav1dData and dav1d_data_wrap() 
Fix #120.
 2018-10-29 21:20:28 +01:00
Ronald S. Bultje
3b02d3a9e5 Add CDEF filter checkasm unit test 2018-10-29 17:16:56 +01:00
Janne Grunau
e74daebe09 libfuzzer: build oss-fuzz fuzzer binaries with meson 
oss-fuzz's FuzzingEngine requires libc++.
 2018-10-28 21:12:20 +01:00
Ronald S. Bultje
dd797aa20b Add CDEF unit test 2018-10-28 02:03:29 +02:00
Janne Grunau
31634e36e2 libfuzzer: unbreak oss-fuzz build 
oss-fuzz builds the fuzzing binary out of meson. Local (quoted) includes
should be preferred for headers located in the same directory.
 2018-10-26 09:20:11 +02:00
James Almer
367d785a4e
meson: add "-Werror=missing-prototypes" to the list of optional arguments 
Add duplicate prototypes to ref_mvs.c for now, since ref_mvs.h can't
be included.

Signed-off-by: James Almer <jamrial@gmail.com>
 2018-10-25 11:58:06 -03:00
Ronald S. Bultje
a036432316 Fix compiler warning in checkasm/looprestoration.c 2018-10-24 18:32:38 +02:00
James Almer
2982ef9279
libfuzzer: fix a -Wformat warning 2018-10-23 19:56:18 -03:00
Janne Grunau
bc803f00fd fuzzer: add a multithreaded fuzzer using 2 frame and tile threads 2018-10-23 22:20:44 +02:00
Janne Grunau
f8e918a9f1 fuzzer: add a standalone fuzzing engine 'none' 
Replaces the boolean 'build_libfuzzer' meson option with 'fuzzing_engine'.
This allows reproducing fuzzing test cases on systems without libfuzzer.
Also prevents regressions in the fuzzing test target since it will be
build by default.
 2018-10-23 22:20:44 +02:00
Janne Grunau
a7bc6b8f2e fuzzer: improve coverage of lib.c 2018-10-23 22:20:44 +02:00
Janne Grunau
520894c6d1 fuzzer: prevent unwanted integer promotion in r32le 
Fixes an undefined shift in
clusterfuzz-testcase-minimized-dav1d_fuzzer-5685383740784640. Credits to
oss-fuzz.
 2018-10-23 22:20:44 +02:00
Henrik Gramner
53194dbc0d x86: Add filter intra prediction AVX2 asm 2018-10-20 16:59:08 +02:00
Henrik Gramner
93c4bea2d4 x86: Add pal_pred AVX2 asm 2018-10-20 16:56:25 +02:00
Ronald S. Bultje
89c3f53fa5 Fix wiener AVX2 SIMD and related unit test. 2018-10-19 17:37:45 +02:00
David Michael Barr
acfa495a20 checkasm: Add unit tests for chroma-from-luma 2018-10-19 21:26:06 +09:00