2 This file is part of PulseAudio.
4 Copyright 2009 Lennart Poettering
6 PulseAudio 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 2.1 of the License,
9 or (at your option) any later version.
11 PulseAudio 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 PulseAudio; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
28 #include <pulse/xmalloc.h>
29 #include <pulse/volume.h>
30 #include <pulse/channelmap.h>
32 #include <pulsecore/core-error.h>
33 #include <pulsecore/module.h>
34 #include <pulsecore/core-util.h>
35 #include <pulsecore/modargs.h>
36 #include <pulsecore/log.h>
37 #include <pulsecore/client.h>
38 #include <pulsecore/conf-parser.h>
40 #include "module-augment-properties-symdef.h"
42 PA_MODULE_AUTHOR("Lennart Poettering");
43 PA_MODULE_DESCRIPTION("Augment the property sets of streams with additional static information");
44 PA_MODULE_VERSION(PACKAGE_VERSION);
45 PA_MODULE_LOAD_ONCE(TRUE);
47 #define STAT_INTERVAL 30
48 #define MAX_CACHE_SIZE 50
50 static const char* const valid_modargs[] = {
59 char *application_name;
61 pa_proplist *proplist;
66 pa_hook_slot *client_new_slot, *client_proplist_changed_slot;
69 static void rule_free(struct rule *r) {
72 pa_xfree(r->process_name);
73 pa_xfree(r->application_name);
74 pa_xfree(r->icon_name);
76 pa_proplist_free(r->proplist);
80 static int parse_properties(const char *filename, unsigned line, const char *section, const char *lvalue, const char *rvalue, void *data, void *userdata) {
81 struct rule *r = userdata;
84 if (!(n = pa_proplist_from_string(rvalue)))
88 pa_proplist_update(r->proplist, PA_UPDATE_MERGE, n);
96 static int check_type(const char *filename, unsigned line, const char *section, const char *lvalue, const char *rvalue, void *data, void *userdata) {
97 return pa_streq(rvalue, "Application") ? 0 : -1;
100 static int catch_all(const char *filename, unsigned line, const char *section, const char *lvalue, const char *rvalue, void *data, void *userdata) {
104 static void update_rule(struct rule *r) {
107 static pa_config_item table[] = {
108 { "Name", pa_config_parse_string, NULL, "Desktop Entry" },
109 { "Icon", pa_config_parse_string, NULL, "Desktop Entry" },
110 { "Type", check_type, NULL, "Desktop Entry" },
111 { "X-PulseAudio-Properties", parse_properties, NULL, "Desktop Entry" },
112 { NULL, catch_all, NULL, NULL },
113 { NULL, NULL, NULL, NULL },
117 fn = pa_sprintf_malloc(DESKTOPFILEDIR PA_PATH_SEP "%s.desktop", r->process_name);
119 if (stat(fn, &st) < 0) {
125 if (r->good && st.st_mtime == r->mtime) {
131 r->mtime = st.st_mtime;
132 pa_xfree(r->application_name);
133 pa_xfree(r->icon_name);
134 r->application_name = r->icon_name = NULL;
136 pa_proplist_clear(r->proplist);
138 table[0].data = &r->application_name;
139 table[1].data = &r->icon_name;
141 if (pa_config_parse(fn, NULL, table, r) < 0)
142 pa_log_warn("Failed to parse .desktop file %s.", fn);
147 static void apply_rule(struct rule *r, pa_proplist *p) {
155 if (!pa_proplist_contains(p, PA_PROP_APPLICATION_ICON_NAME))
156 pa_proplist_sets(p, PA_PROP_APPLICATION_ICON_NAME, r->icon_name);
158 if (r->application_name) {
161 t = pa_proplist_gets(p, PA_PROP_APPLICATION_NAME);
163 if (!t || pa_streq(t, r->process_name))
164 pa_proplist_sets(p, PA_PROP_APPLICATION_NAME, r->application_name);
168 pa_proplist_update(p, PA_UPDATE_MERGE, r->proplist);
171 static void make_room(pa_hashmap *cache) {
174 while (pa_hashmap_size(cache) >= MAX_CACHE_SIZE) {
177 pa_assert_se(r = pa_hashmap_steal_first(cache));
182 static pa_hook_result_t process(struct userdata *u, pa_proplist *p) {
190 if (!(pn = pa_proplist_gets(p, PA_PROP_APPLICATION_PROCESS_BINARY)))
193 if (*pn == '.' || strchr(pn, '/'))
198 pa_log_debug("Looking for .desktop file for %s", pn);
200 if ((r = pa_hashmap_get(u->cache, pn))) {
201 if (now-r->timestamp > STAT_INTERVAL) {
208 r = pa_xnew0(struct rule, 1);
209 r->process_name = pa_xstrdup(pn);
211 pa_hashmap_put(u->cache, r->process_name, r);
219 static pa_hook_result_t client_new_cb(pa_core *core, pa_client_new_data *data, struct userdata *u) {
220 pa_core_assert_ref(core);
224 return process(u, data->proplist);
227 static pa_hook_result_t client_proplist_changed_cb(pa_core *core, pa_client *client, struct userdata *u) {
228 pa_core_assert_ref(core);
232 return process(u, client->proplist);
235 int pa__init(pa_module *m) {
236 pa_modargs *ma = NULL;
241 if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
242 pa_log("Failed to parse module arguments");
246 m->userdata = u = pa_xnew(struct userdata, 1);
248 u->cache = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
249 u->client_new_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_CLIENT_NEW], PA_HOOK_EARLY, (pa_hook_cb_t) client_new_cb, u);
250 u->client_proplist_changed_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_CLIENT_PROPLIST_CHANGED], PA_HOOK_EARLY, (pa_hook_cb_t) client_proplist_changed_cb, u);
265 void pa__done(pa_module *m) {
270 if (!(u = m->userdata))
273 if (u->client_new_slot)
274 pa_hook_slot_free(u->client_new_slot);
275 if (u->client_proplist_changed_slot)
276 pa_hook_slot_free(u->client_proplist_changed_slot);
281 while ((r = pa_hashmap_steal_first(u->cache)))
284 pa_hashmap_free(u->cache, NULL, NULL);