Crash when resampling

Hi,

I've a problem when trying to resample a mp3 file. Here's the backtrace :

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fffd43ac710 (LWP 11617)]
0x00007fffd5ad354d in Resample (p_filter=0x3eab598, p_in_buf=0x3eb3100) at ../../../../modules/audio_filter/resampler/bandlimited.c:189
189         vlc_memcpy( p_in + p_sys->i_old_wing * 2 * i_nb_channels,
Current language:  auto
The current source language is "auto; currently c".
(gdb) back
[#0](https://code.videolan.org/videolan/vlc/-/issues/0)  0x00007fffd5ad354d in Resample (p_filter=0x3eab598, p_in_buf=0x3eb3100) at ../../../../modules/audio_filter/resampler/bandlimited.c:189
[#1](https://code.videolan.org/videolan/vlc/-/issues/1)  0x00007ffff2f6f8a8 in filter_chain_AudioFilter (p_chain=<value optimized out>, p_block=0x0) at ../../src/misc/filter_chain.c:241
[#2](https://code.videolan.org/videolan/vlc/-/issues/2)  0x00007fffd45b5497 in transcode_audio_process (p_stream=0x3e9f6d8, id=0x3ea77c0, in=0x3ea98f0, out=0x7fffd43abcf8)
    at ../../../../modules/stream_out/transcode/audio.c:380
[#3](https://code.videolan.org/videolan/vlc/-/issues/3)  0x00007fffd45b4662 in Send (p_stream=0x7fffd4283960, id=0x3eb3170, p_buffer=0x128280) at ../../../../modules/stream_out/transcode/transcode.c:695
[#4](https://code.videolan.org/videolan/vlc/-/issues/4)  0x00007ffff2f79672 in sout_InputSendBuffer (p_input=0x3ea7430, p_buffer=0x3ea98f0) at ../../src/stream_output/stream_output.c:280
[#5](https://code.videolan.org/videolan/vlc/-/issues/5)  0x00007ffff2f10ffc in DecoderPlaySout (p_dec=0x7fffe001f9f8, p_block=<value optimized out>) at ../../src/input/decoder.c:1649
[#6](https://code.videolan.org/videolan/vlc/-/issues/6)  DecoderProcessSout (p_dec=0x7fffe001f9f8, p_block=<value optimized out>) at ../../src/input/decoder.c:1768
[#7](https://code.videolan.org/videolan/vlc/-/issues/7)  DecoderProcess (p_dec=0x7fffe001f9f8, p_block=<value optimized out>) at ../../src/input/decoder.c:1967
[#8](https://code.videolan.org/videolan/vlc/-/issues/8)  0x00007ffff2f119cb in DecoderThread (p_this=<value optimized out>) at ../../src/input/decoder.c:885
[#9](https://code.videolan.org/videolan/vlc/-/issues/9)  0x00007ffff2f5ee34 in thread_entry (data=<value optimized out>) at ../../src/misc/threads.c:58
[#10](https://code.videolan.org/videolan/vlc/-/issues/10) 0x00007ffff3cbb81a in start_thread () from /lib/libpthread.so.0
[#11](https://code.videolan.org/videolan/vlc/-/issues/11) 0x00007ffff3285c7d in clone () from /lib/libc.so.6
[#12](https://code.videolan.org/videolan/vlc/-/issues/12) 0x0000000000000000 in ?? ()

And here's the file I was trying to resample : http://vlmc.org/~hugo/my_sweet_shadow.mp3

Regards,

added Component::Core: Audio output Severity::normal Type::bug Version::master git + 1 deleted label

changed milestone to %Bugs paradize

Hi again,

This bug seems to occur with another file : http://vlmc.org/~hugo/sample.avi

Here is the (same) backtrace :

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fffd6f5a710 (LWP 11759)]
0x00007fffd5ff954d in Resample (p_filter=0x2282858, p_in_buf=0x222d050) at ../../../../modules/audio_filter/resampler/bandlimited.c:189
189         vlc_memcpy( p_in + p_sys->i_old_wing * 2 * i_nb_channels,
Current language:  auto
The current source language is "auto; currently c".
(gdb) back
[#0](https://code.videolan.org/videolan/vlc/-/issues/0)  0x00007fffd5ff954d in Resample (p_filter=0x2282858, p_in_buf=0x222d050) at ../../../../modules/audio_filter/resampler/bandlimited.c:189
[#1](https://code.videolan.org/videolan/vlc/-/issues/1)  0x00007ffff2f6f8a8 in filter_chain_AudioFilter (p_chain=<value optimized out>, p_block=0x0) at ../../src/misc/filter_chain.c:241
[#2](https://code.videolan.org/videolan/vlc/-/issues/2)  0x00007fffd9a48497 in transcode_audio_process (p_stream=0x227bea8, id=0x21ed820, in=0x222ccd0, out=0x7fffd6f59cf8)
    at ../../../../modules/stream_out/transcode/audio.c:380
[#3](https://code.videolan.org/videolan/vlc/-/issues/3)  0x00007fffd9a47662 in Send (p_stream=0x7fffd6e31960, id=0x222d0c0, p_buffer=0x128280) at ../../../../modules/stream_out/transcode/transcode.c:695
[#4](https://code.videolan.org/videolan/vlc/-/issues/4)  0x00007ffff2f79672 in sout_InputSendBuffer (p_input=0x21ed3d0, p_buffer=0x222ccd0) at ../../src/stream_output/stream_output.c:280
[#5](https://code.videolan.org/videolan/vlc/-/issues/5)  0x00007ffff2f10ffc in DecoderPlaySout (p_dec=0x227f988, p_block=<value optimized out>) at ../../src/input/decoder.c:1649
[#6](https://code.videolan.org/videolan/vlc/-/issues/6)  DecoderProcessSout (p_dec=0x227f988, p_block=<value optimized out>) at ../../src/input/decoder.c:1768
[#7](https://code.videolan.org/videolan/vlc/-/issues/7)  DecoderProcess (p_dec=0x227f988, p_block=<value optimized out>) at ../../src/input/decoder.c:1967
[#8](https://code.videolan.org/videolan/vlc/-/issues/8)  0x00007ffff2f119cb in DecoderThread (p_this=<value optimized out>) at ../../src/input/decoder.c:885
[#9](https://code.videolan.org/videolan/vlc/-/issues/9)  0x00007ffff2f5ee34 in thread_entry (data=<value optimized out>) at ../../src/misc/threads.c:58
[#10](https://code.videolan.org/videolan/vlc/-/issues/10) 0x00007ffff3cbb81a in start_thread () from /lib/libpthread.so.0
[#11](https://code.videolan.org/videolan/vlc/-/issues/11) 0x00007ffff3285c7d in clone () from /lib/libc.so.6
[#12](https://code.videolan.org/videolan/vlc/-/issues/12) 0x0000000000000000 in ?? ()

Added attachment:

• 0001-Don-t-allocate-that-big-a-buffer-on-the-stack.patch

I just attached a first patch that avoid allocating output buffer on the stack. It seems to avoid a first crash, but other remain.

changed the description

#3199 (closed)

added Status::duplicate label

closed