[FFmpeg-trac] #9692(avfilter:new): Filter ahistogram with slide=scroll crashes

[FFmpeg]

#9692: Filter ahistogram with slide=scroll crashes
-------------------------------------+-------------------------------------
             Reporter:  John         |                     Type:  defect
  Warburton                          |
               Status:  new          |                 Priority:  normal
            Component:  avfilter     |                  Version:  git-
                                     |  master
             Keywords:  ahistogram   |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 Summary of the bug:

 The ahistogram filter with slide=scroll crashes. Without specifying slide
 (i.e. replace mode) the filter works perfectly.

 This problem started at some point since mid-February 2022.

 Platform is mingw-w64, compiled with GCC 12.0.1

 Happy to test any patches you might like me to try.

 How to reproduce:
 {{{
 % ffmpeg -i http://warblefly.sytes.net:8001/audio-hifi.aac -filter_complex
 "[0:0]ahistogram=slide=scroll" output.mp4
 }}}

 FFmpeg is version N-106318-g710e51677a built on March 18 2022.

 GDB gives this trace:

 {{{
 warning: Critical error detected c0000374

 Thread 1 received signal SIGTRAP, Trace/breakpoint trap.
 0x00007ff85749ca63 in ntdll!RtlIsZeroMemory () from
 C:\WINDOWS\SYSTEM32\ntdll.dll
 (gdb) bt
 #0  0x00007ff85749ca63 in ntdll!RtlIsZeroMemory () from
 C:\WINDOWS\SYSTEM32\ntdll.dll
 #1  0x00007ff8574a5a9a in ntdll!.misaligned_access () from
 C:\WINDOWS\SYSTEM32\ntdll.dll
 #2  0x00007ff8574a5d7a in ntdll!.misaligned_access () from
 C:\WINDOWS\SYSTEM32\ntdll.dll
 #3  0x00007ff8574b0305 in ntdll!.misaligned_access () from
 C:\WINDOWS\SYSTEM32\ntdll.dll
 #4  0x00007ff8573c3fdf in ntdll!RtlAllocateHeap () from
 C:\WINDOWS\SYSTEM32\ntdll.dll
 #5  0x00007ff8573c0969 in ntdll!RtlAllocateHeap () from
 C:\WINDOWS\SYSTEM32\ntdll.dll
 #6  0x00007ff857494b92 in ntdll!RtlRegisterSecureMemoryCacheCallback ()
 from C:\WINDOWS\SYSTEM32\ntdll.dll
 #7  0x00007ff85744ec36 in ntdll!RtlNotifyFeatureUsage () from
 C:\WINDOWS\SYSTEM32\ntdll.dll
 #8  0x00007ff8573c0969 in ntdll!RtlAllocateHeap () from
 C:\WINDOWS\SYSTEM32\ntdll.dll
 #9  0x00007ff8564ecb80 in msvcrt!malloc () from
 C:\WINDOWS\System32\msvcrt.dll
 #10 0x00007ff8564ec22c in msvcrt!_aligned_offset_malloc () from
 C:\WINDOWS\System32\msvcrt.dll
 #11 0x00007fffb2598542 in avutil-57!av_malloc () from C:\Program
 Files\ffmpeg\bin\avutil-57.dll
 #12 0x00007fffb2578673 in avutil-57!av_frame_clone () from C:\Program
 Files\ffmpeg\bin\avutil-57.dll
 #13 0x00007fffb27e84ab in avfilter_get_by_name () from C:\Program
 Files\ffmpeg\bin\avfilter-8.dll
 #14 0x00007fffb28023fa in avfilter_pad_get_type () from C:\Program
 Files\ffmpeg\bin\avfilter-8.dll
 #15 0x00007fffb2807360 in avfilter-8!av_buffersrc_add_frame_flags () from
 C:\Program Files\ffmpeg\bin\avfilter-8.dll
 #16 0x00007ff7e1df45ad in ?? ()
 Backtrace stopped: previous frame inner to this frame (corrupt stack?)
 }}}
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/9692>
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