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quartz: Silence the directsound buffer on starting. 

If the buffer is created and stopped, the contents of the buffer are
indeterminate, by zeroing it you won't get leftovers from last play.
This commit is contained in:
Maarten Lankhorst 2008-03-14 11:47:42 -07:00 committed by Alexandre Julliard
parent b1f9acc688
commit 6d965b8fb6
1 changed files with 9 additions and 0 deletions
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9
dlls/quartz/dsoundrender.c
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@ -498,6 +498,15 @@ static HRESULT WINAPI DSoundRender_Run(IBaseFilter * iface, REFERENCE_TIME tStar
/* It's okay if there's no buffer yet. It'll start when it's created */
if (This->dsbuffer)
{
if (This->state == State_Stopped)
{
char *buf1;
DWORD size1;
IDirectSoundBuffer_Lock(This->dsbuffer, 0, 0, (void**)&buf1, &size1, NULL, NULL, DSBLOCK_ENTIREBUFFER);
memset(buf1, 0, size1);
IDirectSoundBuffer_Unlock(This->dsbuffer, buf1, size1, NULL, 0);
}
hr = IDirectSoundBuffer_Play(This->dsbuffer, 0, 0, DSBPLAY_LOOPING);
if (FAILED(hr))
ERR("Can't start playing! (%x)\n", hr);