Mail Archives: cygwin/2008/03/17/05:47:31
Hi Cygwin developers,
I got a repeatable crash using waveInOpen under Vista without SP1
(no SP1 for Italians until April) using cygwin 1.5.25(0.156/4/2) 2008-03-05,
on a HP Pavilion m9080 quad core with Realtek HD Audio.
Please, can fellow developers compile the following example and report
if it crashes?
1) As soon as waveInOpen is called, it crashes
2) To cause the crash it is not needed to use the wavein, just to open it.
3) Under XP, no problems.
4) If you compile under vista with -mno-cygwin and execute with a
double click on it, no problem.
5) If you compile using cygwin, and execute it from bash, crashes.
See below a very simple test case.
You can compile it without cygwin and then execute it with a double click:
gcc -mno-cygwin -Wall waveinopen_vista.c -o waveinopen_vista -l winmm
or you can compile it with cygwin and execute it from bash (I got a crash):
gcc -Wall waveinopen_vista.c -o waveinopen_vista -l winmm
=======================================
#include <windows.h>
#include <stdio.h>
#include <mmsystem.h>
/* Handle to the WAVE In Device */
HWAVEIN WaveInHandle;
int main(int argc , char ** argv)
{
MMRESULT err;
WAVEFORMATEX waveFormat;
/* Initialize the WAVEFORMATEX */
waveFormat.wFormatTag = WAVE_FORMAT_PCM;
waveFormat.nChannels = 2;
waveFormat.nSamplesPerSec = 44100;
waveFormat.wBitsPerSample = 16;
waveFormat.nBlockAlign = waveFormat.nChannels *
(waveFormat.wBitsPerSample/8);
waveFormat.nAvgBytesPerSec = waveFormat.nSamplesPerSec *
waveFormat.nBlockAlign;
waveFormat.cbSize = 0;
/* Open the default WAVE In Device */
err = waveInOpen(&WaveInHandle, WAVE_MAPPER, &waveFormat,
0, 0, CALLBACK_NULL);
printf("\n\nciao!!!\n\n");
Sleep(5000);
printf("\n\ngoodbye!!!\n\n");
return 0;
}
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