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oss: refactor code around policy setting 

This fixes a problem with a previous patch spotted by Juergen Lock,
thanks to him again.

Signed-off-by: malc <av1474@comtv.ru>
This commit is contained in:
malc 2010-01-09 00:28:40 +03:00
parent 25d0ae900f
commit 78d9356d3c
1 changed files with 8 additions and 12 deletions
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20
audio/ossaudio.c
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@ -38,6 +38,10 @@
#define AUDIO_CAP "oss"
#include "audio_int.h"
#if defined OSS_GETVERSION && defined SNDCTL_DSP_POLICY
#define USE_DSP_POLICY
#endif
typedef struct OSSVoiceOut {
HWVoiceOut hw;
void *pcm_buf;
@ -240,7 +244,7 @@ static int oss_open (int in, struct oss_params *req,
struct oss_params *obt, int *pfd)
{
int fd;
#ifdef OSS_GETVERSION
#ifdef USE_DSP_POLICY
int version;
#endif
int oflags = conf.exclusive ? O_EXCL : 0;
@ -283,7 +287,7 @@ static int oss_open (int in, struct oss_params *req,
goto err;
}
#ifdef OSS_GETVERSION
#ifdef USE_DSP_POLICY
if (ioctl (fd, OSS_GETVERSION, &version)) {
oss_logerr2 (errno, typ, "Failed to get OSS version\n");
version = 0;
@ -292,16 +296,8 @@ static int oss_open (int in, struct oss_params *req,
if (conf.debug) {
dolog ("OSS version = %#x\n", version);
}
#endif
#ifdef SNDCTL_DSP_POLICY
if (conf.policy >= 0
#ifdef OSS_GETVERSION
&& version >= 0x040000
#else
0
#endif
)
if (conf.policy >= 0 && version >= 0x040000)
{
int policy = conf.policy;
if (ioctl (fd, SNDCTL_DSP_POLICY, &policy)) {
@ -868,7 +864,7 @@ static struct audio_option oss_options[] = {
.valp = &conf.exclusive,
.descr = "Open device in exclusive mode (vmix wont work)"
},
#ifdef SNDCTL_DSP_POLICY
#ifdef USE_DSP_POLICY
{
.name = "POLICY",
.tag = AUD_OPT_INT,