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authorMax Kellermann <max@duempel.org>2009-10-20 21:23:05 +0200
committerMax Kellermann <max@duempel.org>2009-10-20 21:23:05 +0200
commit097e200a97dfda0844c93f53f1c0a1e6f5d07201 (patch)
tree958b079c42f9e4b80d65451794755c8aa4b76970 /src/mixer/alsa_mixer.c
parentbd28caed3c650101ee4d19b9b0d985609f1a97cf (diff)
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mixer/{oss,alsa}: renamed the mixer source files
Diffstat (limited to 'src/mixer/alsa_mixer.c')
-rw-r--r--src/mixer/alsa_mixer.c222
1 files changed, 0 insertions, 222 deletions
diff --git a/src/mixer/alsa_mixer.c b/src/mixer/alsa_mixer.c
deleted file mode 100644
index 52e553cc5..000000000
--- a/src/mixer/alsa_mixer.c
+++ /dev/null
@@ -1,222 +0,0 @@
-/*
- * Copyright (C) 2003-2009 The Music Player Daemon Project
- * http://www.musicpd.org
- *
- * This program 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.
- *
- * This program 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 this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#include "../output_api.h"
-#include "../mixer_api.h"
-
-#include <glib.h>
-#include <alsa/asoundlib.h>
-
-#define VOLUME_MIXER_ALSA_DEFAULT "default"
-#define VOLUME_MIXER_ALSA_CONTROL_DEFAULT "PCM"
-#define VOLUME_MIXER_ALSA_INDEX_DEFAULT 0
-
-struct alsa_mixer {
- /** the base mixer class */
- struct mixer base;
-
- const char *device;
- const char *control;
- unsigned int index;
-
- snd_mixer_t *handle;
- snd_mixer_elem_t *elem;
- long volume_min;
- long volume_max;
- int volume_set;
-};
-
-static struct mixer *
-alsa_mixer_init(const struct config_param *param)
-{
- struct alsa_mixer *am = g_new(struct alsa_mixer, 1);
-
- mixer_init(&am->base, &alsa_mixer);
-
- am->device = config_get_block_string(param, "mixer_device",
- VOLUME_MIXER_ALSA_DEFAULT);
- am->control = config_get_block_string(param, "mixer_control",
- VOLUME_MIXER_ALSA_CONTROL_DEFAULT);
- am->index = config_get_block_unsigned(param, "mixer_index",
- VOLUME_MIXER_ALSA_INDEX_DEFAULT);
-
- return &am->base;
-}
-
-static void
-alsa_mixer_finish(struct mixer *data)
-{
- struct alsa_mixer *am = (struct alsa_mixer *)data;
-
- g_free(am);
-
- /* free libasound's config cache */
- snd_config_update_free_global();
-}
-
-static void
-alsa_mixer_close(struct mixer *data)
-{
- struct alsa_mixer *am = (struct alsa_mixer *)data;
-
- assert(am->handle != NULL);
-
- snd_mixer_close(am->handle);
-}
-
-static bool
-alsa_mixer_open(struct mixer *data)
-{
- struct alsa_mixer *am = (struct alsa_mixer *)data;
- int err;
- snd_mixer_elem_t *elem;
-
- am->volume_set = -1;
-
- err = snd_mixer_open(&am->handle, 0);
- if (err < 0) {
- g_warning("problems opening alsa mixer: %s\n", snd_strerror(err));
- return false;
- }
-
- if ((err = snd_mixer_attach(am->handle, am->device)) < 0) {
- g_warning("problems attaching alsa mixer: %s\n",
- snd_strerror(err));
- alsa_mixer_close(data);
- return false;
- }
-
- if ((err = snd_mixer_selem_register(am->handle, NULL,
- NULL)) < 0) {
- g_warning("problems snd_mixer_selem_register'ing: %s\n",
- snd_strerror(err));
- alsa_mixer_close(data);
- return false;
- }
-
- if ((err = snd_mixer_load(am->handle)) < 0) {
- g_warning("problems snd_mixer_selem_register'ing: %s\n",
- snd_strerror(err));
- alsa_mixer_close(data);
- return false;
- }
-
- elem = snd_mixer_first_elem(am->handle);
-
- while (elem) {
- if (snd_mixer_elem_get_type(elem) == SND_MIXER_ELEM_SIMPLE) {
- if ((g_ascii_strcasecmp(am->control,
- snd_mixer_selem_get_name(elem)) == 0) &&
- (am->index == snd_mixer_selem_get_index(elem))) {
- break;
- }
- }
- elem = snd_mixer_elem_next(elem);
- }
-
- if (elem) {
- am->elem = elem;
- snd_mixer_selem_get_playback_volume_range(am->elem,
- &am->volume_min,
- &am->volume_max);
- return true;
- }
-
- g_warning("can't find alsa mixer control \"%s\"\n", am->control);
-
- alsa_mixer_close(data);
- return false;
-}
-
-static int
-alsa_mixer_get_volume(struct mixer *mixer)
-{
- struct alsa_mixer *am = (struct alsa_mixer *)mixer;
- int err;
- int ret;
- long level;
-
- assert(am->handle != NULL);
-
- err = snd_mixer_handle_events(am->handle);
- if (err < 0) {
- g_warning("problems getting alsa volume: %s (snd_mixer_%s)\n",
- snd_strerror(err), "handle_events");
- return false;
- }
-
- err = snd_mixer_selem_get_playback_volume(am->elem,
- SND_MIXER_SCHN_FRONT_LEFT,
- &level);
- if (err < 0) {
- g_warning("problems getting alsa volume: %s (snd_mixer_%s)\n",
- snd_strerror(err), "selem_get_playback_volume");
- return false;
- }
-
- ret = ((am->volume_set / 100.0) * (am->volume_max - am->volume_min)
- + am->volume_min) + 0.5;
- if (am->volume_set > 0 && ret == level) {
- ret = am->volume_set;
- } else {
- ret = (int)(100 * (((float)(level - am->volume_min)) /
- (am->volume_max - am->volume_min)) + 0.5);
- }
-
- return ret;
-}
-
-static bool
-alsa_mixer_set_volume(struct mixer *mixer, unsigned volume)
-{
- struct alsa_mixer *am = (struct alsa_mixer *)mixer;
- float vol;
- long level;
- int err;
-
- assert(am->handle != NULL);
-
- vol = volume;
-
- am->volume_set = vol + 0.5;
-
- level = (long)(((vol / 100.0) * (am->volume_max - am->volume_min) +
- am->volume_min) + 0.5);
- level = level > am->volume_max ? am->volume_max : level;
- level = level < am->volume_min ? am->volume_min : level;
-
- err = snd_mixer_selem_set_playback_volume_all(am->elem, level);
- if (err < 0) {
- g_warning("problems setting alsa volume: %s\n",
- snd_strerror(err));
- return false;
- }
-
- return true;
-}
-
-const struct mixer_plugin alsa_mixer = {
- .init = alsa_mixer_init,
- .finish = alsa_mixer_finish,
- .open = alsa_mixer_open,
- .close = alsa_mixer_close,
- .get_volume = alsa_mixer_get_volume,
- .set_volume = alsa_mixer_set_volume,
- .global = true,
-};