// Initialization and runtime control
static int control(struct af_instance_s* af, int cmd, void* arg)
{
af_gate_t* s = (af_gate_t*)af->setup;
switch(cmd){
case AF_CONTROL_REINIT:
// Sanity check
if(!arg) return AF_ERROR;
af->data->rate = ((af_data_t*)arg)->rate;
af->data->nch = ((af_data_t*)arg)->nch;
af->data->format = AF_FORMAT_FLOAT_NE;
af->data->bps = 4;
// Time constant set to 0.1s
// s->alpha = (1.0/0.2)/(2.0*M_PI*(float)((af_data_t*)arg)->rate);
return af_test_output(af,(af_data_t*)arg);
case AF_CONTROL_COMMAND_LINE:{
/* float v=-10.0; */
/* float vol[AF_NCH]; */
/* float s=0.0; */
/* float clipp[AF_NCH]; */
/* int i; */
/* sscanf((char*)arg,"%f:%f", &v, &s); */
/* for(i=0;i<AF_NCH;i++){ */
/* vol[i]=v; */
/* clipp[i]=s; */
/* } */
/* if(AF_OK != control(af,AF_CONTROL_VOLUME_SOFTCLIP | AF_CONTROL_SET, clipp)) */
/* return AF_ERROR; */
/* return control(af,AF_CONTROL_VOLUME_LEVEL | AF_CONTROL_SET, vol); */
}
case AF_CONTROL_GATE_ON_OFF | AF_CONTROL_SET:
memcpy(s->enable,(int*)arg,AF_NCH*sizeof(int));
return AF_OK;
case AF_CONTROL_GATE_ON_OFF | AF_CONTROL_GET:
memcpy((int*)arg,s->enable,AF_NCH*sizeof(int));
return AF_OK;
case AF_CONTROL_GATE_THRESH | AF_CONTROL_SET:
return af_from_dB(AF_NCH,(float*)arg,s->tresh,20.0,-60.0,-1.0);
case AF_CONTROL_GATE_THRESH | AF_CONTROL_GET:
return af_to_dB(AF_NCH,s->tresh,(float*)arg,10.0);
case AF_CONTROL_GATE_ATTACK | AF_CONTROL_SET:
return af_from_ms(AF_NCH,(float*)arg,s->attack,af->data->rate,500.0,0.1);
case AF_CONTROL_GATE_ATTACK | AF_CONTROL_GET:
return af_to_ms(AF_NCH,s->attack,(float*)arg,af->data->rate);
case AF_CONTROL_GATE_RELEASE | AF_CONTROL_SET:
return af_from_ms(AF_NCH,(float*)arg,s->release,af->data->rate,3000.0,10.0);
case AF_CONTROL_GATE_RELEASE | AF_CONTROL_GET:
return af_to_ms(AF_NCH,s->release,(float*)arg,af->data->rate);
case AF_CONTROL_GATE_RANGE | AF_CONTROL_SET:
return af_from_dB(AF_NCH,(float*)arg,s->range,20.0,100.0,0.0);
case AF_CONTROL_GATE_RANGE | AF_CONTROL_GET:
return af_to_dB(AF_NCH,s->range,(float*)arg,10.0);
}
return AF_UNKNOWN;
}
static void checkvolume(struct mixer *mixer)
{
if (!mixer->ao)
return;
if (mixer->softvol == SOFTVOL_AUTO) {
mixer->softvol = mixer->ao->per_application_mixer
? SOFTVOL_NO : SOFTVOL_YES;
}
ao_control_vol_t vol;
if (mixer->softvol || CONTROL_OK != ao_control(mixer->ao,
AOCONTROL_GET_VOLUME, &vol)) {
mixer->softvol = SOFTVOL_YES;
if (!mixer->afilter)
return;
float db_vals[AF_NCH];
if (!af_control_any_rev(mixer->afilter,
AF_CONTROL_VOLUME_LEVEL | AF_CONTROL_GET, db_vals))
db_vals[0] = db_vals[1] = 1.0;
else
af_from_dB(2, db_vals, db_vals, 20.0, -200.0, 60.0);
vol.left = (db_vals[0] / (mixer->softvol_max / 100.0)) * 100.0;
vol.right = (db_vals[1] / (mixer->softvol_max / 100.0)) * 100.0;
}
float l = mixer->vol_l;
float r = mixer->vol_r;
if (mixer->muted_using_volume)
l = r = 0;
/* Try to detect cases where the volume has been changed by some external
* action (such as something else changing a shared system-wide volume).
* We don't test for exact equality, as some AOs may round the value
* we last set to some nearby supported value. 3 has been the default
* volume step for increase/decrease keys, and is apparently big enough
* to step to the next possible value in most setups.
*/
if (FFABS(vol.left - l) >= 3 || FFABS(vol.right - r) >= 3) {
mixer->vol_l = vol.left;
mixer->vol_r = vol.right;
if (mixer->muted_using_volume)
mixer->muted = false;
}
if (!mixer->softvol)
// Rely on the value not changing if the query is not supported
ao_control(mixer->ao, AOCONTROL_GET_MUTE, &mixer->muted);
mixer->muted_by_us &= mixer->muted;
mixer->muted_using_volume &= mixer->muted;
}
void mixer_getvolume(mixer_t *mixer, float *l, float *r)
{
ao_control_vol_t vol;
*l=0; *r=0;
if(mixer->audio_out){
if(soft_vol ||
CONTROL_OK != mixer->audio_out->control(AOCONTROL_GET_VOLUME,&vol)) {
if (!mixer->afilter)
return;
else {
float db_vals[AF_NCH];
if (!af_control_any_rev(mixer->afilter,
AF_CONTROL_VOLUME_LEVEL | AF_CONTROL_GET, db_vals))
db_vals[0] = db_vals[1] = 1.0;
else
af_from_dB (2, db_vals, db_vals, 20.0, -200.0, 60.0);
vol.left = (db_vals[0] / (soft_vol_max / 100.0)) * 100.0;
vol.right = (db_vals[1] / (soft_vol_max / 100.0)) * 100.0;
}
}
*r=vol.right;
*l=vol.left;
}
}
// Initialization and runtime control
static int control(struct af_instance_s* af, int cmd, void* arg)
{
af_volume_t* s = (af_volume_t*)af->setup;
switch(cmd){
case AF_CONTROL_REINIT:
// Sanity check
if(!arg) return AF_ERROR;
af->data->rate = ((af_data_t*)arg)->rate;
af->data->nch = ((af_data_t*)arg)->nch;
if(s->fast && (((af_data_t*)arg)->format != (AF_FORMAT_FLOAT_NE))){
af->data->format = AF_FORMAT_S16_NE;
af->data->bps = 2;
}
else{
// Cutoff set to 10Hz for forgetting factor
float x = 2.0*M_PI*15.0/(float)af->data->rate;
float t = 2.0-cos(x);
s->time = 1.0 - (t - sqrt(t*t - 1));
mp_msg(MSGT_AFILTER, MSGL_DBG2, "[volume] Forgetting factor = %0.5f\n",s->time);
af->data->format = AF_FORMAT_FLOAT_NE;
af->data->bps = 4;
}
return af_test_output(af,(af_data_t*)arg);
case AF_CONTROL_COMMAND_LINE:{
float v=0.0;
float vol[AF_NCH];
int i;
sscanf((char*)arg,"%f:%i", &v, &s->soft);
for(i=0;i<AF_NCH;i++) vol[i]=v;
return control(af,AF_CONTROL_VOLUME_LEVEL | AF_CONTROL_SET, vol);
}
case AF_CONTROL_POST_CREATE:
s->fast = ((((af_cfg_t*)arg)->force & AF_INIT_FORMAT_MASK) ==
AF_INIT_FLOAT) ? 0 : 1;
return AF_OK;
case AF_CONTROL_VOLUME_ON_OFF | AF_CONTROL_SET:
memcpy(s->enable,(int*)arg,AF_NCH*sizeof(int));
return AF_OK;
case AF_CONTROL_VOLUME_ON_OFF | AF_CONTROL_GET:
memcpy((int*)arg,s->enable,AF_NCH*sizeof(int));
return AF_OK;
case AF_CONTROL_VOLUME_SOFTCLIP | AF_CONTROL_SET:
s->soft = *(int*)arg;
return AF_OK;
case AF_CONTROL_VOLUME_SOFTCLIP | AF_CONTROL_GET:
*(int*)arg = s->soft;
return AF_OK;
case AF_CONTROL_VOLUME_LEVEL | AF_CONTROL_SET:
return af_from_dB(AF_NCH,(float*)arg,s->level,20.0,-200.0,60.0);
case AF_CONTROL_VOLUME_LEVEL | AF_CONTROL_GET:
return af_to_dB(AF_NCH,s->level,(float*)arg,20.0);
case AF_CONTROL_VOLUME_PROBE | AF_CONTROL_GET:
return af_to_dB(AF_NCH,s->pow,(float*)arg,10.0);
case AF_CONTROL_VOLUME_PROBE_MAX | AF_CONTROL_GET:
return af_to_dB(AF_NCH,s->max,(float*)arg,10.0);
case AF_CONTROL_PRE_DESTROY:{
float m = 0.0;
int i;
if(!s->fast){
for(i=0;i<AF_NCH;i++)
m=max(m,s->max[i]);
af_to_dB(1, &m, &m, 10.0);
mp_msg(MSGT_AFILTER, MSGL_INFO, "[volume] The maximum volume was %0.2fdB \n", m);
}
return AF_OK;
}
}
return AF_UNKNOWN;
}
