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device selection support

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git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@14399 b3059339-0415-0410-9bf9-f77b7e298cf2
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faust3 2005-01-06 13:31:02 +00:00
parent 92f7267851
commit 5817da7f59
1 changed files with 56 additions and 2 deletions
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58
libao2/ao_dsound.c
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@ -34,6 +34,7 @@
#include "mp_msg.h"
#include "libvo/fastmemcpy.h"
#include "osdep/timer.h"
#include "subopt-helper.h"
static ao_info_t info =
@ -113,6 +114,8 @@ 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 = 4096; ///if the free space is below this value get_space() will return 0
static int device_num = 0; ///wanted device number
static GUID device; ///guid of the device
/***************************************************************************************/
@ -165,6 +168,41 @@ static void UninitDirectSound(void)
mp_msg(MSGT_AO, MSGL_V, "ao_dsound: DirectSound uninitialized\n");
}
/**
\brief print the commandline help
*/
static void print_help()
{
mp_msg(MSGT_AO, MSGL_FATAL,
"\n-ao dsound commandline help:\n"
"Example: mplayer -ao dsound:device=1\n"
" sets 1st device\n"
"\nOptions:\n"
" device=<device-number>\n"
" Sets device number, use -v to get a list\n");
}
/**
\brief enumerate direct sound devices
\return TRUE to continue with the enumeration
*/
static BOOL CALLBACK DirectSoundEnum(LPGUID guid,LPCSTR desc,LPCSTR module,LPVOID context)
{
int* device_index=context;
mp_msg(MSGT_AO, MSGL_V,"%i %s ",*device_index,desc);
if(device_num==*device_index){
mp_msg(MSGT_AO, MSGL_V,"<--");
if(guid){
memcpy(&device,guid,sizeof(GUID));
}
}
mp_msg(MSGT_AO, MSGL_V,"\n");
(*device_index)++;
return TRUE;
}
/**
\brief initilize direct sound
\return 0 if error, 1 if ok
@ -175,21 +213,37 @@ static int InitDirectSound(void)
// initialize directsound
HRESULT (WINAPI *OurDirectSoundCreate)(LPGUID, LPDIRECTSOUND *, LPUNKNOWN);
HRESULT (WINAPI *OurDirectSoundEnumerate)(LPDSENUMCALLBACKA, LPVOID);
int device_index=0;
opt_t subopts[] = {
{"device", OPT_ARG_INT, &device_num,NULL},
{NULL}
};
if (subopt_parse(ao_subdevice, subopts) != 0) {
print_help();
return 0;
}
hdsound_dll = LoadLibrary("DSOUND.DLL");
if (hdsound_dll == NULL) {
mp_msg(MSGT_AO, MSGL_ERR, "ao_dsound: cannot load DSOUND.DLL\n");
return 0;
}
OurDirectSoundCreate = (void*)GetProcAddress(hdsound_dll, "DirectSoundCreate");
OurDirectSoundEnumerate = (void*)GetProcAddress(hdsound_dll, "DirectSoundEnumerateA");
if (OurDirectSoundCreate == NULL) {
if (OurDirectSoundCreate == NULL || OurDirectSoundEnumerate == NULL) {
mp_msg(MSGT_AO, MSGL_ERR, "ao_dsound: GetProcAddress FAILED\n");
FreeLibrary(hdsound_dll);
return 0;
}
// Enumerate all directsound devices
mp_msg(MSGT_AO, MSGL_V,"ao_dsound: Output Devices:\n");
OurDirectSoundEnumerate(DirectSoundEnum,&device_index);
// Create the direct sound object
if FAILED(OurDirectSoundCreate(NULL, &hds, NULL )) {
if FAILED(OurDirectSoundCreate((device_num)?&device:NULL, &hds, NULL )) {
mp_msg(MSGT_AO, MSGL_ERR, "ao_dsound: cannot create a DirectSound device\n");
FreeLibrary(hdsound_dll);
return 0;