[jamrial@ArchVM build]$ /home/jamrial/build/ffmpeg -nostdin -nostats -cpuflags all -hwaccel none -threads 1 -thread_type frame+slice -i /home/jamrial/build/tests/data/asynth-44100-2.wav -frames:a 20 -af dcshift=shift=0.25:limitergain=0.05 -flags +bitexact -fflags +bitexact -f framecrc -
ffmpeg version N-87281-gde03eb622d Copyright (c) 2000-2017 the FFmpeg developers
  built with gcc 7.2.0 (GCC)
  configuration: --enable-gpl --toolchain=gcc-asan --prefix=/usr --disable-stripping --samples=/var/tmp/samples
  libavutil      55. 74.100 / 55. 74.100
  libavcodec     57.105.100 / 57.105.100
  libavformat    57. 82.100 / 57. 82.100
  libavdevice    57.  8.100 / 57.  8.100
  libavfilter     6.105.100 /  6.105.100
  libswscale      4.  7.103 /  4.  7.103
  libswresample   2.  8.100 /  2.  8.100
  libpostproc    54.  6.100 / 54.  6.100
Guessed Channel Layout for Input Stream #0.0 : stereo
Input #0, wav, from '/home/jamrial/build/tests/data/asynth-44100-2.wav':
  Duration: 00:00:06.00, bitrate: 1411 kb/s
    Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, stereo, s16, 1411 kb/s
Stream mapping:
  Stream #0:0 -> #0:0 (pcm_s16le (native) -> pcm_s16le (native))
#tb 0: 1/44100
#media_type 0: audio
#codec_id 0: pcm_s16le
#sample_rate 0: 44100
#channel_layout 0: 3
#channel_layout_name 0: stereo
Output #0, framecrc, to 'pipe:':
    Stream #0:0: Audio: pcm_s16le, 44100 Hz, stereo, s16, 1411 kb/s
    Metadata:
      encoder         : Lavc pcm_s16le
0,          0,          0,     1024,     4096, 0x96868842
0,       1024,       1024,     1024,     4096, 0xeff98700
0,       2048,       2048,     1024,     4096, 0x6ea28e1e
0,       3072,       3072,     1024,     4096, 0x67b982be
0,       4096,       4096,     1024,     4096, 0xd08a8302
0,       5120,       5120,     1024,     4096, 0xfdf891dc
0,       6144,       6144,     1024,     4096, 0xbec4784a
0,       7168,       7168,     1024,     4096, 0x04ca910a
0,       8192,       8192,     1024,     4096, 0xe4af87d0
0,       9216,       9216,     1024,     4096, 0xc7f18c66
0,      10240,      10240,     1024,     4096, 0x6448732a
0,      11264,      11264,     1024,     4096, 0x98b89706
0,      12288,      12288,     1024,     4096, 0xf47887f4
0,      13312,      13312,     1024,     4096, 0x387290d2
0,      14336,      14336,     1024,     4096, 0xc5716e84
0,      15360,      15360,     1024,     4096, 0x94de8aa8
0,      16384,      16384,     1024,     4096, 0x3a618d88
0,      17408,      17408,     1024,     4096, 0xfeb56ec2
0,      18432,      18432,     1024,     4096, 0x55fe8fb6
0,      19456,      19456,     1024,     4096, 0x8ff788fa
size=       1kB time=00:00:00.46 bitrate=  22.3kbits/s speed= 110x
video:0kB audio:80kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
ASAN:DEADLYSIGNAL
=================================================================
==11572==ERROR: AddressSanitizer: SEGV on unknown address 0x7f781893d330 (pc 0x7f781c8addea bp 0x7ffcb5493160 sp 0x7ffcb5492cc8 T0)
==11572==The signal is caused by a READ memory access.