mirror of
https://github.com/mpv-player/mpv
synced 2024-12-14 10:55:43 +00:00
bb98df0456
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@12909 b3059339-0415-0410-9bf9-f77b7e298cf2
119 lines
3.0 KiB
C
119 lines
3.0 KiB
C
#include <string.h>
|
|
#ifndef __MINGW32__
|
|
#include <sys/ioctl.h>
|
|
#endif
|
|
#include <fcntl.h>
|
|
#include <stdio.h>
|
|
#include <unistd.h>
|
|
|
|
#include "config.h"
|
|
#include "libao2/audio_out.h"
|
|
#include "libaf/af.h"
|
|
#include "mixer.h"
|
|
|
|
#include "help_mp.h"
|
|
|
|
char * mixer_device=NULL;
|
|
char * mixer_channel=NULL;
|
|
|
|
void mixer_getvolume(mixer_t *mixer, float *l, float *r)
|
|
{
|
|
ao_control_vol_t vol;
|
|
*l=0; *r=0;
|
|
if(mixer->audio_out){
|
|
if(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] * 90.0;
|
|
vol.right = db_vals[1] * 90.0;
|
|
}
|
|
}
|
|
*r=vol.right;
|
|
*l=vol.left;
|
|
}
|
|
}
|
|
|
|
void mixer_setvolume(mixer_t *mixer, float l, float r)
|
|
{
|
|
ao_control_vol_t vol;
|
|
vol.right=r; vol.left=l;
|
|
if(mixer->audio_out){
|
|
if(CONTROL_OK != mixer->audio_out->control(AOCONTROL_SET_VOLUME,&vol)) {
|
|
if (!mixer->afilter)
|
|
return;
|
|
else {
|
|
// af_volume uses values in dB
|
|
float db_vals[AF_NCH];
|
|
int i;
|
|
// a volume of 90% will give 0 dB (no change)
|
|
// like this, amplification is possible as well
|
|
db_vals[0] = l / 90.0;
|
|
db_vals[1] = r / 90.0;
|
|
for (i = 2; i < AF_NCH; i++) {
|
|
db_vals[i] = (l + r) / 180.0;
|
|
}
|
|
af_to_dB (AF_NCH, db_vals, db_vals, 20.0);
|
|
if (!af_control_any_rev(mixer->afilter,
|
|
AF_CONTROL_VOLUME_LEVEL | AF_CONTROL_SET, db_vals)) {
|
|
mp_msg(MSGT_GLOBAL, MSGL_INFO, MSGTR_InsertingAfVolume);
|
|
if (af_add(mixer->afilter, "volume")) {
|
|
if (!af_control_any_rev(mixer->afilter,
|
|
AF_CONTROL_VOLUME_LEVEL | AF_CONTROL_SET, db_vals)) {
|
|
mp_msg(MSGT_GLOBAL, MSGL_ERR, MSGTR_NoVolume);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
mixer->muted=0;
|
|
}
|
|
|
|
void mixer_incvolume(mixer_t *mixer)
|
|
{
|
|
float mixer_l, mixer_r;
|
|
mixer_getvolume(mixer, &mixer_l, &mixer_r);
|
|
mixer_l += mixer->volstep;
|
|
if ( mixer_l > 100 ) mixer_l = 100;
|
|
mixer_r += mixer->volstep;
|
|
if ( mixer_r > 100 ) mixer_r = 100;
|
|
mixer_setvolume(mixer, mixer_l, mixer_r);
|
|
}
|
|
|
|
void mixer_decvolume(mixer_t *mixer)
|
|
{
|
|
float mixer_l, mixer_r;
|
|
mixer_getvolume(mixer, &mixer_l, &mixer_r);
|
|
mixer_l -= mixer->volstep;
|
|
if ( mixer_l < 0 ) mixer_l = 0;
|
|
mixer_r -= mixer->volstep;
|
|
if ( mixer_r < 0 ) mixer_r = 0;
|
|
mixer_setvolume(mixer, mixer_l, mixer_r);
|
|
}
|
|
|
|
void mixer_getbothvolume(mixer_t *mixer, float *b)
|
|
{
|
|
float mixer_l, mixer_r;
|
|
mixer_getvolume(mixer, &mixer_l, &mixer_r);
|
|
*b = ( mixer_l + mixer_r ) / 2;
|
|
}
|
|
|
|
void mixer_mute(mixer_t *mixer)
|
|
{
|
|
if (mixer->muted) mixer_setvolume(mixer, mixer->last_l, mixer->last_r);
|
|
else
|
|
{
|
|
mixer_getvolume(mixer, &mixer->last_l, &mixer->last_r);
|
|
mixer_setvolume(mixer, 0, 0);
|
|
mixer->muted=1;
|
|
}
|
|
}
|