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get_space fix by Florian Dietrich <flodt8 at yahoo.de>

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git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@14948 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
faust3 2005-03-15 16:29:18 +00:00
parent eb4815621a
commit a8941ce3eb
1 changed files with 5 additions and 1 deletions
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6
libao2/ao_dsound.c
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@ -115,6 +115,9 @@ static LPDIRECTSOUNDBUFFER hdsbuf = NULL; ///secondary direct sound buffer (stre
static int buffer_size = 0; ///size in bytes of the direct sound buffer
static int write_offset = 0; ///offset of the write cursor in the direct sound buffer
static int min_free_space = 0; ///if the free space is below this value get_space() will return 0
///there will always be at least this amout of free space to prevent
///get_space() from returning wrong values when buffer is 100% full.
///will be replaced with nBlockAlign in init()
static int device_num = 0; ///wanted device number
static GUID device; ///guid of the device
@ -482,6 +485,7 @@ static int init(int rate, int channels, int format, int flags)
dsbdesc.lpwfxFormat = (WAVEFORMATEX *)&wformat;
buffer_size = dsbdesc.dwBufferBytes;
write_offset = 0;
min_free_space = wformat.Format.nBlockAlign;
ao_data.outburst = wformat.Format.nBlockAlign * 512;
// create primary buffer and set its format
@ -579,7 +583,7 @@ static int get_space()
// write_offset is the postion where we actually write the data to
if(space > buffer_size)space -= buffer_size; // write_offset < play_offset
if(space < min_free_space)return 0;
return space;
return space-min_free_space;
}
/**