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-rw-r--r--src/audioOutputs/audioOutput_oss.c44
1 files changed, 25 insertions, 19 deletions
diff --git a/src/audioOutputs/audioOutput_oss.c b/src/audioOutputs/audioOutput_oss.c
index 2a5842b25..9805c81f3 100644
--- a/src/audioOutputs/audioOutput_oss.c
+++ b/src/audioOutputs/audioOutput_oss.c
@@ -53,17 +53,22 @@ typedef struct _OssData {
int numUnsupported[3];
} OssData;
-#define OSS_SUPPORTED 1
-#define OSS_UNSUPPORTED 0
-#define OSS_UNKNOWN -1
+enum oss_support {
+ OSS_SUPPORTED = 1,
+ OSS_UNSUPPORTED = 0,
+ OSS_UNKNOWN = -1,
+};
-#define OSS_RATE 0
-#define OSS_CHANNELS 1
-#define OSS_BITS 2
+enum oss_param {
+ OSS_RATE = 0,
+ OSS_CHANNELS = 1,
+ OSS_BITS = 2,
+};
-static int getIndexForParam(int param)
+static enum oss_param
+getIndexForParam(int param)
{
- int idx = 0;
+ enum oss_param idx = OSS_RATE;
switch (param) {
case SNDCTL_DSP_SPEED:
@@ -83,7 +88,7 @@ static int getIndexForParam(int param)
static int findSupportedParam(OssData * od, int param, int val)
{
int i;
- int idx = getIndexForParam(param);
+ enum oss_param idx = getIndexForParam(param);
for (i = 0; i < od->numSupported[idx]; i++) {
if (od->supported[idx][i] == val)
@@ -112,7 +117,7 @@ static int canConvert(int idx, int val)
static int getSupportedParam(OssData * od, int param, int val)
{
int i;
- int idx = getIndexForParam(param);
+ enum oss_param idx = getIndexForParam(param);
int ret = -1;
int least = val;
int diff;
@@ -136,7 +141,7 @@ static int getSupportedParam(OssData * od, int param, int val)
static int findUnsupportedParam(OssData * od, int param, int val)
{
int i;
- int idx = getIndexForParam(param);
+ enum oss_param idx = getIndexForParam(param);
for (i = 0; i < od->numUnsupported[idx]; i++) {
if (od->unsupported[idx][i] == val)
@@ -148,7 +153,7 @@ static int findUnsupportedParam(OssData * od, int param, int val)
static void addSupportedParam(OssData * od, int param, int val)
{
- int idx = getIndexForParam(param);
+ enum oss_param idx = getIndexForParam(param);
od->numSupported[idx]++;
od->supported[idx] = xrealloc(od->supported[idx],
@@ -158,7 +163,7 @@ static void addSupportedParam(OssData * od, int param, int val)
static void addUnsupportedParam(OssData * od, int param, int val)
{
- int idx = getIndexForParam(param);
+ enum oss_param idx = getIndexForParam(param);
od->numUnsupported[idx]++;
od->unsupported[idx] = xrealloc(od->unsupported[idx],
@@ -171,7 +176,7 @@ static void removeSupportedParam(OssData * od, int param, int val)
{
int i;
int j = 0;
- int idx = getIndexForParam(param);
+ enum oss_param idx = getIndexForParam(param);
for (i = 0; i < od->numSupported[idx] - 1; i++) {
if (od->supported[idx][i] == val)
@@ -188,7 +193,7 @@ static void removeUnsupportedParam(OssData * od, int param, int val)
{
int i;
int j = 0;
- int idx = getIndexForParam(param);
+ enum oss_param idx = getIndexForParam(param);
for (i = 0; i < od->numUnsupported[idx] - 1; i++) {
if (od->unsupported[idx][i] == val)
@@ -202,7 +207,8 @@ static void removeUnsupportedParam(OssData * od, int param, int val)
sizeof(int));
}
-static int isSupportedParam(OssData * od, int param, int val)
+static enum oss_support
+isSupportedParam(OssData * od, int param, int val)
{
if (findSupportedParam(od, param, val))
return OSS_SUPPORTED;
@@ -213,7 +219,7 @@ static int isSupportedParam(OssData * od, int param, int val)
static void supportParam(OssData * od, int param, int val)
{
- int supported = isSupportedParam(od, param, val);
+ enum oss_support supported = isSupportedParam(od, param, val);
if (supported == OSS_SUPPORTED)
return;
@@ -227,7 +233,7 @@ static void supportParam(OssData * od, int param, int val)
static void unsupportParam(OssData * od, int param, int val)
{
- int supported = isSupportedParam(od, param, val);
+ enum oss_support supported = isSupportedParam(od, param, val);
if (supported == OSS_UNSUPPORTED)
return;
@@ -402,7 +408,7 @@ static int setParam(OssData * od, int param, int *value)
{
int val = *value;
int copy;
- int supported = isSupportedParam(od, param, val);
+ enum oss_support supported = isSupportedParam(od, param, val);
do {
if (supported == OSS_UNSUPPORTED) {