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-rw-r--r--src/volume.c260
1 files changed, 143 insertions, 117 deletions
diff --git a/src/volume.c b/src/volume.c
index dca8f5115..32b56bd66 100644
--- a/src/volume.c
+++ b/src/volume.c
@@ -59,7 +59,7 @@
#endif
static int volume_mixerType = VOLUME_MIXER_TYPE_DEFAULT;
-static char * volume_mixerDevice = VOLUME_MIXER_DEVICE_DEFAULT;
+static char *volume_mixerDevice = VOLUME_MIXER_DEVICE_DEFAULT;
static int volume_softwareSet = 100;
@@ -69,8 +69,8 @@ static int volume_ossControl = SOUND_MIXER_PCM;
#endif
#ifdef HAVE_ALSA
-static snd_mixer_t * volume_alsaMixerHandle = NULL;
-static snd_mixer_elem_t * volume_alsaElem;
+static snd_mixer_t *volume_alsaMixerHandle = NULL;
+static snd_mixer_elem_t *volume_alsaElem;
static long volume_alsaMin;
static long volume_alsaMax;
static int volume_alsaSet = -1;
@@ -80,53 +80,54 @@ static int volume_alsaSet = -1;
static void closeOssMixer(void)
{
- while (close(volume_ossFd) && errno == EINTR);
+ while (close(volume_ossFd) && errno == EINTR) ;
volume_ossFd = -1;
}
-static int prepOssMixer(char * device) {
- ConfigParam * param;
+static int prepOssMixer(char *device)
+{
+ ConfigParam *param;
- if((volume_ossFd = open(device,O_RDONLY))<0) {
- WARNING("unable to open oss mixer \"%s\"\n",device);
+ if ((volume_ossFd = open(device, O_RDONLY)) < 0) {
+ WARNING("unable to open oss mixer \"%s\"\n", device);
return -1;
}
- param = getConfigParam(CONF_MIXER_CONTROL);
+ param = getConfigParam(CONF_MIXER_CONTROL);
- if(param) {
- char * labels[SOUND_MIXER_NRDEVICES] = SOUND_DEVICE_LABELS;
- char * dup;
- int i,j;
+ if (param) {
+ char *labels[SOUND_MIXER_NRDEVICES] = SOUND_DEVICE_LABELS;
+ char *dup;
+ int i, j;
int devmask = 0;
- if(ioctl(volume_ossFd,SOUND_MIXER_READ_DEVMASK,&devmask)<0) {
+ if (ioctl(volume_ossFd, SOUND_MIXER_READ_DEVMASK, &devmask) < 0) {
WARNING("errors getting read_devmask for oss mixer\n");
closeOssMixer();
return -1;
}
- for(i=0;i<SOUND_MIXER_NRDEVICES;i++) {
+ for (i = 0; i < SOUND_MIXER_NRDEVICES; i++) {
dup = strdup(labels[i]);
/* eliminate spaces at the end */
- j = strlen(dup)-1;
- while(j>=0 && dup[j]==' ') dup[j--] = '\0';
- if(strcasecmp(dup, param->value)==0) {
+ j = strlen(dup) - 1;
+ while (j >= 0 && dup[j] == ' ')
+ dup[j--] = '\0';
+ if (strcasecmp(dup, param->value) == 0) {
free(dup);
break;
}
free(dup);
}
- if(i>=SOUND_MIXER_NRDEVICES) {
+ if (i >= SOUND_MIXER_NRDEVICES) {
WARNING("mixer control \"%s\" not found at line %i\n",
- param->value, param->line);
+ param->value, param->line);
closeOssMixer();
return -1;
- }
- else if(!( ( 1 << i ) & devmask )) {
+ } else if (!((1 << i) & devmask)) {
WARNING("mixer control \"%s\" not usable at line %i\n",
- param->value, param->line);
+ param->value, param->line);
closeOssMixer();
return -1;
}
@@ -144,13 +145,14 @@ static int ensure_oss_open(void)
return 0;
}
-static int getOssVolumeLevel(void) {
+static int getOssVolumeLevel(void)
+{
int left, right, level;
if (ensure_oss_open() < 0)
return -1;
- if(ioctl(volume_ossFd,MIXER_READ(volume_ossControl),&level) < 0) {
+ if (ioctl(volume_ossFd, MIXER_READ(volume_ossControl), &level) < 0) {
closeOssMixer();
WARNING("unable to read volume\n");
return -1;
@@ -159,42 +161,45 @@ static int getOssVolumeLevel(void) {
left = level & 0xff;
right = (level & 0xff00) >> 8;
- if(left!=right) {
+ if (left != right) {
WARNING("volume for left and right is not the same, \"%i\" and "
- "\"%i\"\n",left,right);
+ "\"%i\"\n", left, right);
}
return left;
}
-static int changeOssVolumeLevel(FILE * fp, int change, int rel) {
+static int changeOssVolumeLevel(FILE * fp, int change, int rel)
+{
int current;
int new;
int level;
if (rel) {
- if((current = getOssVolumeLevel()) < 0) {
+ if ((current = getOssVolumeLevel()) < 0) {
commandError(fp, ACK_ERROR_SYSTEM,
- "problem getting current volume", NULL);
+ "problem getting current volume", NULL);
return -1;
}
- new = current+change;
+ new = current + change;
} else {
if (ensure_oss_open() < 0)
return -1;
new = change;
}
- if(new<0) new = 0;
- else if(new>100) new = 100;
+ if (new < 0)
+ new = 0;
+ else if (new > 100)
+ new = 100;
level = (new << 8) + new;
- if(ioctl(volume_ossFd,MIXER_WRITE(volume_ossControl),&level) < 0) {
+ if (ioctl(volume_ossFd, MIXER_WRITE(volume_ossControl), &level) < 0) {
closeOssMixer();
commandError(fp, ACK_ERROR_SYSTEM, "problems setting volume",
- NULL);
+ NULL);
return -1;
}
@@ -203,39 +208,43 @@ static int changeOssVolumeLevel(FILE * fp, int change, int rel) {
#endif
#ifdef HAVE_ALSA
-static void closeAlsaMixer(void) {
+static void closeAlsaMixer(void)
+{
snd_mixer_close(volume_alsaMixerHandle);
volume_alsaMixerHandle = NULL;
}
-static int prepAlsaMixer(char * card) {
+static int prepAlsaMixer(char *card)
+{
int err;
- snd_mixer_elem_t * elem;
- char * controlName = VOLUME_MIXER_ALSA_CONTROL_DEFAULT;
- ConfigParam * param;
+ snd_mixer_elem_t *elem;
+ char *controlName = VOLUME_MIXER_ALSA_CONTROL_DEFAULT;
+ ConfigParam *param;
- err = snd_mixer_open(&volume_alsaMixerHandle,0);
+ err = snd_mixer_open(&volume_alsaMixerHandle, 0);
snd_config_update_free_global();
if (err < 0) {
- WARNING("problems opening alsa mixer: %s\n",snd_strerror(err));
+ WARNING("problems opening alsa mixer: %s\n", snd_strerror(err));
return -1;
}
- if((err = snd_mixer_attach(volume_alsaMixerHandle,card))<0) {
+ if ((err = snd_mixer_attach(volume_alsaMixerHandle, card)) < 0) {
closeAlsaMixer();
WARNING("problems problems attaching alsa mixer: %s\n",
snd_strerror(err));
return -1;
}
- if((err = snd_mixer_selem_register(volume_alsaMixerHandle,NULL,NULL))<0) {
+ if ((err =
+ snd_mixer_selem_register(volume_alsaMixerHandle, NULL,
+ NULL)) < 0) {
closeAlsaMixer();
WARNING("problems snd_mixer_selem_register'ing: %s\n",
snd_strerror(err));
return -1;
}
- if((err = snd_mixer_load(volume_alsaMixerHandle))<0) {
+ if ((err = snd_mixer_load(volume_alsaMixerHandle)) < 0) {
closeAlsaMixer();
WARNING("problems snd_mixer_selem_register'ing: %s\n",
snd_strerror(err));
@@ -246,30 +255,29 @@ static int prepAlsaMixer(char * card) {
param = getConfigParam(CONF_MIXER_CONTROL);
- if(param) {
+ if (param) {
controlName = param->value;
}
- while(elem) {
- if(snd_mixer_elem_get_type(elem)==SND_MIXER_ELEM_SIMPLE) {
- if(strcasecmp(controlName,
- snd_mixer_selem_get_name(elem))==0)
- {
+ while (elem) {
+ if (snd_mixer_elem_get_type(elem) == SND_MIXER_ELEM_SIMPLE) {
+ if (strcasecmp(controlName,
+ snd_mixer_selem_get_name(elem)) == 0) {
break;
}
}
elem = snd_mixer_elem_next(elem);
}
- if(elem) {
+ if (elem) {
volume_alsaElem = elem;
- snd_mixer_selem_get_playback_volume_range(
- volume_alsaElem,
- &volume_alsaMin,&volume_alsaMax);
+ snd_mixer_selem_get_playback_volume_range(volume_alsaElem,
+ &volume_alsaMin,
+ &volume_alsaMax);
return 0;
}
- WARNING("can't find alsa mixer_control \"%s\"\n",controlName);
+ WARNING("can't find alsa mixer_control \"%s\"\n", controlName);
closeAlsaMixer();
return -1;
@@ -280,27 +288,29 @@ static int prep_alsa_get_level(long *level)
const char *cmd;
int err;
- if (!volume_alsaMixerHandle && prepAlsaMixer(volume_mixerDevice)<0)
+ if (!volume_alsaMixerHandle && prepAlsaMixer(volume_mixerDevice) < 0)
return -1;
if ((err = snd_mixer_handle_events(volume_alsaMixerHandle)) < 0) {
cmd = "handle_events";
goto error;
}
- if((err = snd_mixer_selem_get_playback_volume(volume_alsaElem,
- SND_MIXER_SCHN_FRONT_LEFT, level)) < 0) {
+ if ((err = snd_mixer_selem_get_playback_volume(volume_alsaElem,
+ SND_MIXER_SCHN_FRONT_LEFT,
+ level)) < 0) {
cmd = "selem_get_playback_volume";
goto error;
}
return 0;
-error:
+ error:
WARNING("problems getting alsa volume: %s (snd_mixer_%s)\n",
- snd_strerror(err), cmd);
+ snd_strerror(err), cmd);
closeAlsaMixer();
return -1;
}
-static int getAlsaVolumeLevel(void) {
+static int getAlsaVolumeLevel(void)
+{
int ret;
long level;
long max = volume_alsaMax;
@@ -309,16 +319,17 @@ static int getAlsaVolumeLevel(void) {
if (prep_alsa_get_level(&level) < 0)
return -1;
- ret = ((volume_alsaSet/100.0)*(max-min)+min)+0.5;
- if(volume_alsaSet>0 && ret==level) {
+ ret = ((volume_alsaSet / 100.0) * (max - min) + min) + 0.5;
+ if (volume_alsaSet > 0 && ret == level) {
ret = volume_alsaSet;
- }
- else ret = (int)(100*(((float)(level-min))/(max-min))+0.5);
+ } else
+ ret = (int)(100 * (((float)(level - min)) / (max - min)) + 0.5);
return ret;
}
-static int changeAlsaVolumeLevel(FILE * fp, int change, int rel) {
+static int changeAlsaVolumeLevel(FILE * fp, int change, int rel)
+{
float vol;
long level;
long test;
@@ -330,29 +341,30 @@ static int changeAlsaVolumeLevel(FILE * fp, int change, int rel) {
return -1;
if (rel) {
- test = ((volume_alsaSet/100.0)*(max-min)+min)+0.5;
- if(volume_alsaSet >= 0 && level==test) {
+ test = ((volume_alsaSet / 100.0) * (max - min) + min) + 0.5;
+ if (volume_alsaSet >= 0 && level == test) {
vol = volume_alsaSet;
- }
- else vol = 100.0*(((float)(level-min))/(max-min));
- vol+=change;
- }
- else
+ } else
+ vol = 100.0 * (((float)(level - min)) / (max - min));
+ vol += change;
+ } else
vol = change;
- volume_alsaSet = vol+0.5;
- volume_alsaSet = volume_alsaSet>100 ? 100 :
- (volume_alsaSet<0 ? 0 : volume_alsaSet);
+ volume_alsaSet = vol + 0.5;
+ volume_alsaSet = volume_alsaSet > 100 ? 100 :
+ (volume_alsaSet < 0 ? 0 : volume_alsaSet);
- level = (long)(((vol/100.0)*(max-min)+min)+0.5);
- level = level>max?max:level;
- level = level<min?min:level;
+ level = (long)(((vol / 100.0) * (max - min) + min) + 0.5);
+ level = level > max ? max : level;
+ level = level < min ? min : level;
- if((err = snd_mixer_selem_set_playback_volume_all(
- volume_alsaElem,level))<0) {
+ if ((err =
+ snd_mixer_selem_set_playback_volume_all(volume_alsaElem,
+ level)) < 0) {
commandError(fp, ACK_ERROR_SYSTEM, "problems setting volume",
- NULL);
- WARNING("problems setting alsa volume: %s\n",snd_strerror(err));
+ NULL);
+ WARNING("problems setting alsa volume: %s\n",
+ snd_strerror(err));
closeAlsaMixer();
return -1;
}
@@ -361,8 +373,9 @@ static int changeAlsaVolumeLevel(FILE * fp, int change, int rel) {
}
#endif
-static int prepMixer(char * device) {
- switch(volume_mixerType) {
+static int prepMixer(char *device)
+{
+ switch (volume_mixerType) {
#ifdef HAVE_ALSA
case VOLUME_MIXER_TYPE_ALSA:
return prepAlsaMixer(device);
@@ -376,8 +389,9 @@ static int prepMixer(char * device) {
return 0;
}
-void finishVolume(void) {
- switch(volume_mixerType) {
+void finishVolume(void)
+{
+ switch (volume_mixerType) {
#ifdef HAVE_ALSA
case VOLUME_MIXER_TYPE_ALSA:
closeAlsaMixer();
@@ -391,54 +405,57 @@ void finishVolume(void) {
}
}
-void initVolume(void) {
- ConfigParam * param = getConfigParam(CONF_MIXER_TYPE);
+void initVolume(void)
+{
+ ConfigParam *param = getConfigParam(CONF_MIXER_TYPE);
- if(param) {
- if(0);
+ if (param) {
+ if (0) ;
#ifdef HAVE_ALSA
- else if(strcmp(param->value, VOLUME_MIXER_ALSA)==0) {
+ else if (strcmp(param->value, VOLUME_MIXER_ALSA) == 0) {
volume_mixerType = VOLUME_MIXER_TYPE_ALSA;
volume_mixerDevice = VOLUME_MIXER_ALSA_DEFAULT;
}
#endif
#ifdef HAVE_OSS
- else if(strcmp(param->value, VOLUME_MIXER_OSS)==0) {
+ else if (strcmp(param->value, VOLUME_MIXER_OSS) == 0) {
volume_mixerType = VOLUME_MIXER_TYPE_OSS;
volume_mixerDevice = VOLUME_MIXER_OSS_DEFAULT;
}
#endif
- else if(strcmp(param->value ,VOLUME_MIXER_SOFTWARE)==0) {
+ else if (strcmp(param->value, VOLUME_MIXER_SOFTWARE) == 0) {
volume_mixerType = VOLUME_MIXER_TYPE_SOFTWARE;
volume_mixerDevice = VOLUME_MIXER_SOFTWARE_DEFAULT;
- }
- else {
+ } else {
ERROR("unknown mixer type %s at line %i\n",
- param->value, param->line);
+ param->value, param->line);
exit(EXIT_FAILURE);
}
}
param = getConfigParam(CONF_MIXER_DEVICE);
- if(param) {
+ if (param) {
volume_mixerDevice = param->value;
}
}
-void openVolumeDevice(void) {
- if(prepMixer(volume_mixerDevice)<0) {
+void openVolumeDevice(void)
+{
+ if (prepMixer(volume_mixerDevice) < 0) {
WARNING("using software volume\n");
volume_mixerType = VOLUME_MIXER_TYPE_SOFTWARE;
}
}
-static int getSoftwareVolume(void) {
+static int getSoftwareVolume(void)
+{
return volume_softwareSet;
}
-int getVolumeLevel(void) {
- switch(volume_mixerType) {
+int getVolumeLevel(void)
+{
+ switch (volume_mixerType) {
#ifdef HAVE_ALSA
case VOLUME_MIXER_TYPE_ALSA:
return getAlsaVolumeLevel();
@@ -454,38 +471,47 @@ int getVolumeLevel(void) {
}
}
-static int changeSoftwareVolume(FILE * fp, int change, int rel) {
+static int changeSoftwareVolume(FILE * fp, int change, int rel)
+{
int new = change;
- if(rel) new+=volume_softwareSet;
+ if (rel)
+ new += volume_softwareSet;
- if(new>100) new = 100;
- else if(new<0) new = 0;
+ if (new > 100)
+ new = 100;
+ else if (new < 0)
+ new = 0;
volume_softwareSet = new;
- /*new = 100.0*(exp(new/50.0)-1)/(M_E*M_E-1)+0.5;*/
- if(new>=100) new = 1000;
- else if(new<=0) new = 0;
- else new = 1000.0*(exp(new/25.0)-1)/(54.5981500331F-1)+0.5;
+ /*new = 100.0*(exp(new/50.0)-1)/(M_E*M_E-1)+0.5; */
+ if (new >= 100)
+ new = 1000;
+ else if (new <= 0)
+ new = 0;
+ else
+ new =
+ 1000.0 * (exp(new / 25.0) - 1) / (54.5981500331F - 1) + 0.5;
setPlayerSoftwareVolume(new);
return 0;
}
-int changeVolumeLevel(FILE * fp, int change, int rel) {
- switch(volume_mixerType) {
+int changeVolumeLevel(FILE * fp, int change, int rel)
+{
+ switch (volume_mixerType) {
#ifdef HAVE_ALSA
case VOLUME_MIXER_TYPE_ALSA:
- return changeAlsaVolumeLevel(fp,change,rel);
+ return changeAlsaVolumeLevel(fp, change, rel);
#endif
#ifdef HAVE_OSS
case VOLUME_MIXER_TYPE_OSS:
- return changeOssVolumeLevel(fp,change,rel);
+ return changeOssVolumeLevel(fp, change, rel);
#endif
case VOLUME_MIXER_TYPE_SOFTWARE:
- return changeSoftwareVolume(fp,change,rel);
+ return changeSoftwareVolume(fp, change, rel);
default:
return 0;
break;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-11 01:13:13 +0000