/* * This file is part of MPlayer. * * MPlayer is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * MPlayer is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along * with MPlayer; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #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" char * mixer_device=NULL; char * mixer_channel=NULL; int soft_vol = 0; float soft_vol_max = 110.0; 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; } } 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(soft_vol || 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; db_vals[0] = (l / 100.0) * (soft_vol_max / 100.0); db_vals[1] = (r / 100.0) * (soft_vol_max / 100.0); for (i = 2; i < AF_NCH; i++) { db_vals[i] = ((l + r) / 100.0) * (soft_vol_max / 100.0) / 2.0; } 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_tmsg(MSGT_GLOBAL, MSGL_INFO, "[Mixer] No hardware mixing, inserting volume filter.\n"); if (af_add(mixer->afilter, "volume")) { if (!af_control_any_rev(mixer->afilter, AF_CONTROL_VOLUME_LEVEL | AF_CONTROL_SET, db_vals)) { mp_tmsg(MSGT_GLOBAL, MSGL_ERR, "[Mixer] No volume control available.\n"); 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; } } void mixer_getbalance(mixer_t *mixer, float *val) { *val = 0.f; if(!mixer->afilter) return; af_control_any_rev(mixer->afilter, AF_CONTROL_PAN_BALANCE | AF_CONTROL_GET, val); } void mixer_setbalance(mixer_t *mixer, float val) { float level[AF_NCH]; int i; af_control_ext_t arg_ext = { .arg = level }; af_instance_t* af_pan_balance; if(!mixer->afilter) return; if (af_control_any_rev(mixer->afilter, AF_CONTROL_PAN_BALANCE | AF_CONTROL_SET, &val)) return; if (!(af_pan_balance = af_add(mixer->afilter, "pan"))) { mp_tmsg(MSGT_GLOBAL, MSGL_ERR, "[Mixer] No balance control available.\n"); return; } af_init(mixer->afilter); /* make all other channels pass thru since by default pan blocks all */ memset(level, 0, sizeof(level)); for (i = 2; i < AF_NCH; i++) { arg_ext.ch = i; level[i] = 1.f; af_pan_balance->control(af_pan_balance, AF_CONTROL_PAN_LEVEL | AF_CONTROL_SET, &arg_ext); level[i] = 0.f; } af_pan_balance->control(af_pan_balance, AF_CONTROL_PAN_BALANCE | AF_CONTROL_SET, &val); }