4 This file is part of polypaudio.
6 polypaudio is free software; you can redistribute it and/or modify
7 it under the terms of the GNU Lesser General Public License as published
8 by the Free Software Foundation; either version 2 of the License,
9 or (at your option) any later version.
11 polypaudio is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public License
17 along with polypaudio; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
30 #include <sys/types.h>
35 #include <polyp/xmalloc.h>
37 #include <polypcore/module.h>
38 #include <polypcore/util.h>
39 #include <polypcore/modargs.h>
40 #include <polypcore/log.h>
41 #include <polypcore/core-subscribe.h>
42 #include <polypcore/sink-input.h>
43 #include <polypcore/util.h>
45 #include "module-match-symdef.h"
47 PA_MODULE_AUTHOR("Lennart Poettering")
48 PA_MODULE_DESCRIPTION("Playback stream expression matching module")
49 PA_MODULE_USAGE("table=<filename>")
50 PA_MODULE_VERSION(PACKAGE_VERSION)
52 #define WHITESPACE "\n\r \t"
54 #ifndef DEFAULT_CONFIG_DIR
55 #define DEFAULT_CONFIG_DIR "/etc/polypaudio"
58 #define DEFAULT_MATCH_TABLE_FILE DEFAULT_CONFIG_DIR"/match.table"
59 #define DEFAULT_MATCH_TABLE_FILE_USER ".polypaudio/match.table"
61 static const char* const valid_modargs[] = {
74 pa_subscription *subscription;
77 static int load_rules(struct userdata *u, const char *filename) {
81 struct rule *end = NULL;
85 fopen(fn = pa_xstrdup(filename), "r") :
86 pa_open_config_file(DEFAULT_MATCH_TABLE_FILE, DEFAULT_MATCH_TABLE_FILE_USER, NULL, &fn, "r");
89 pa_log(__FILE__": failed to open file '%s': %s", fn, strerror(errno));
93 pa_lock_fd(fileno(f), 1);
103 if (!fgets(ln, sizeof(ln), f))
110 if (ln[0] == '#' || !*ln )
113 d = ln+strcspn(ln, WHITESPACE);
114 v = d+strspn(d, WHITESPACE);
118 pa_log(__FILE__ ": [%s:%u] failed to parse line - too few words", filename, n);
123 if (pa_atou(v, &k) < 0) {
124 pa_log(__FILE__": [%s:%u] failed to parse volume", filename, n);
128 volume = (pa_volume_t) k;
131 if (regcomp(®ex, ln, REG_EXTENDED|REG_NOSUB) != 0) {
132 pa_log(__FILE__": [%s:%u] invalid regular expression", filename, n);
136 rule = pa_xmalloc(sizeof(struct rule));
138 rule->volume = volume;
154 pa_lock_fd(fileno(f), 0);
164 static void callback(pa_core *c, pa_subscription_event_type_t t, uint32_t idx, void *userdata) {
165 struct userdata *u = userdata;
170 if (t != (PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_NEW))
173 if (!(si = pa_idxset_get_by_index(c->sink_inputs, idx)))
179 for (r = u->rules; r; r = r->next) {
180 if (!regexec(&r->regex, si->name, 0, NULL, 0)) {
182 pa_log_debug(__FILE__": changing volume of sink input '%s' to 0x%03x", si->name, r->volume);
183 pa_cvolume_set(&cv, r->volume, si->sample_spec.channels);
184 pa_sink_input_set_volume(si, &cv);
189 int pa__init(pa_core *c, pa_module*m) {
190 pa_modargs *ma = NULL;
194 if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
195 pa_log(__FILE__": Failed to parse module arguments");
199 u = pa_xmalloc(sizeof(struct userdata));
201 u->subscription = NULL;
204 if (load_rules(u, pa_modargs_get_value(ma, "table", NULL)) < 0)
207 u->subscription = pa_subscription_new(c, PA_SUBSCRIPTION_MASK_SINK_INPUT, callback, u);
220 void pa__done(pa_core *c, pa_module*m) {
225 if (!(u = m->userdata))
229 pa_subscription_free(u->subscription);
231 for (r = u->rules; r; r = n) {