[Cin] Simplest demo of BT 638 crash

[Andrew Randrianasulu]

Attempt at making local variable version ... not sure if I got all
conditions right?
It does not crash ...


On Wed, Apr 26, 2023 at 2:28 PM Andrew Randrianasulu
<randrianasulu at gmail.com> wrote:
>
> Or, alternatively, just reconfigure it unconditionally?
>
> Not sure how slower it will become ... but it seems to prevent crash
> without adding any arbitrary constant
> I wonder if it works with very fast shuttle forward?
>
>
> On Wed, Apr 26, 2023 at 2:17 PM Andrew Randrianasulu
> <randrianasulu at gmail.com> wrote:
> >
> > I tried to set allocation to 2x more (because plugin suddently get 2x
> > bigger buffer on speed change), but not sure if  this even sounds
> > right?
> >
> > May be better idea is to store this PluginClient::in_buffer_size in
> > plugin-local variable, and compare it to current value, and
> > reconfigure if needed ...
> >
> > On Wed, Apr 26, 2023 at 9:26 AM Andrew Randrianasulu
> > <randrianasulu at gmail.com> wrote:
> > >
> > > Phyllis, can you check HV's version of delayaudio plugin functions?
> > >
> > > https://github.com/heroineworshiper/hvirtual/blob/457c27f1786a83d43ad205478e4389f760c4fdf9/plugins/delayaudio/delayaudio.C
> > >
> > > they slightly different, esp. in memcpy parts.
> > > I'll try to test this idea myself, sometime this day.
> > >
> > >
> > > пт, 21 апр. 2023 г., 19:03 Andrew Randrianasulu <randrianasulu at gmail.com>:
> > >>
> > >> so far I get this Backtrace:
> > >>
> > >> Thread 88 "cin" received signal SIGSEGV, Segmentation fault.
> > >> [Switching to Thread 0xc4612b00 (LWP 16879)]
> > >> 0xf4e0f37d in DelayAudio::process_realtime(long long, Samples*,
> > >> Samples*) () from /usr/lib/cin/plugins/audio/delayaudio.plugin
> > >> (gdb) bt full
> > >> #0  0xf4e0f37d in DelayAudio::process_realtime(long long, Samples*, Samples*)
> > >>     () from /usr/lib/cin/plugins/audio/delayaudio.plugin
> > >> No symbol table info available.
> > >> #1  0x08709468 in PluginAClient::process_buffer(long long, Samples*,
> > >> long long, int) ()
> > >> No symbol table info available.
> > >> #2  0x08729ea5 in PluginServer::process_buffer(Samples**, long long,
> > >> long long, long long, long long, int) ()
> > >> No symbol table info available.
> > >> #3  0x084d393b in AAttachmentPoint::render(Samples*, int, long long,
> > >> long long, long long) ()
> > >> No symbol table info available.
> > >> #4  0x087efb03 in VirtualANode::render_as_module(Samples**, Samples*,
> > >> long long, long long, long long) ()
> > >> No symbol table info available.
> > >> #5  0x087efbaa in VirtualANode::render(Samples*, long long, long long,
> > >> long long) ()
> > >> No symbol table info available.
> > >> #6  0x087ede33 in VirtualAConsole::process_buffer(long long, long long) ()
> > >> No symbol table info available.
> > >> #7  0x08504f84 in ARender::run() ()
> > >> No symbol table info available.
> > >> #8  0x088f4881 in Thread::entrypoint(void*) ()
> > >> --Type <RET> for more, q to quit, c to continue without paging--
> > >> No symbol table info available.
> > >> #9  0xf7e42328 in start_thread () from /lib/libpthread.so.0
> > >> No symbol table info available.
> > >> #10 0xf6204f06 in clone () from /lib/libc.so.6
> > >> No symbol table info available.
> > >>
> > >> On Fri, Apr 21, 2023 at 5:08 AM Andrew Randrianasulu
> > >> <randrianasulu at gmail.com> wrote:
> > >> >
> > >> > Thanks a lot, I am sorry I spend most of time watching all 7 episodes of Extrapolations (tv series)  instead of doing anything at computer.
> > >> >
> > >> > So, it basically in "delay audio" plugin, this find narrows it quite a lot!
> > >> >
> > >> > пт, 21 апр. 2023 г., 04:04 Phyllis Smith <phylsmith2017 at gmail.com>:
> > >> >>
> > >> >> Simplest demo to create "Delay Audio" plugin problem. I tested this with 4 random audio files or video files that included audio files and all crashed under this set of steps. So you can demo with any file but 1 small example audio file is attached.
> > >> >>
> > >> >> 1) load/replace file (or load to resources and then drag onto timeline)
> > >> >> 2) drag the "Delay Audio" plugin to the audio track
> > >> >> 3) start playing file from the beginning (or start anywhere)
> > >> >> 4) without stopping first, use the "fast forward" icon in the main window to speed up the playing - CRASH
> > >> >>
> > >> >> ALTERNATIVE to "Delay Audio" is "F_adelay" which did not crash for me - set "delays" parameter to desired seconds and use "Apply".
> > >> >> Next I will use the debugger to learn some more.
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