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
30 #include <pulse/xmalloc.h>
32 #include <pulsecore/module.h>
33 #include <pulsecore/core-util.h>
34 #include <pulsecore/modargs.h>
35 #include <pulsecore/log.h>
36 #include <pulsecore/client.h>
37 #include <pulsecore/conf-parser.h>
39 #include "module-augment-properties-symdef.h"
41 PA_MODULE_AUTHOR("Lennart Poettering");
42 PA_MODULE_DESCRIPTION("Augment the property sets of streams with additional static information");
43 PA_MODULE_VERSION(PACKAGE_VERSION);
44 PA_MODULE_LOAD_ONCE(true);
46 #define STAT_INTERVAL 30
47 #define MAX_CACHE_SIZE 50
49 static const char* const valid_modargs[] = {
58 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);
77 pa_proplist_free(r->proplist);
81 static int parse_properties(pa_config_parser_state *state) {
89 if (!(n = pa_proplist_from_string(state->rvalue)))
93 pa_proplist_update(r->proplist, PA_UPDATE_MERGE, n);
101 static int parse_categories(pa_config_parser_state *state) {
103 const char *split_state = NULL;
110 while ((c = pa_split(state->rvalue, ";", &split_state))) {
112 if (pa_streq(c, "Game")) {
114 r->role = pa_xstrdup("game");
115 } else if (pa_streq(c, "Telephony")) {
117 r->role = pa_xstrdup("phone");
126 static int check_type(pa_config_parser_state *state) {
129 return pa_streq(state->rvalue, "Application") ? 0 : -1;
132 static int catch_all(pa_config_parser_state *state) {
136 static void update_rule(struct rule *r) {
139 static pa_config_item table[] = {
140 { "Name", pa_config_parse_string, NULL, "Desktop Entry" },
141 { "Icon", pa_config_parse_string, NULL, "Desktop Entry" },
142 { "Type", check_type, NULL, "Desktop Entry" },
143 { "X-PulseAudio-Properties", parse_properties, NULL, "Desktop Entry" },
144 { "Categories", parse_categories, NULL, "Desktop Entry" },
145 { NULL, catch_all, NULL, NULL },
146 { NULL, NULL, NULL, NULL },
151 fn = pa_sprintf_malloc(DESKTOPFILEDIR PA_PATH_SEP "%s.desktop", r->process_name);
153 if (stat(fn, &st) == 0)
157 DIR *desktopfiles_dir;
160 /* Let's try a more aggressive search, but only one level */
161 if ((desktopfiles_dir = opendir(DESKTOPFILEDIR))) {
162 while ((dir = readdir(desktopfiles_dir))) {
163 if (dir->d_type != DT_DIR
164 || pa_streq(dir->d_name, ".")
165 || pa_streq(dir->d_name, ".."))
169 fn = pa_sprintf_malloc(DESKTOPFILEDIR PA_PATH_SEP "%s" PA_PATH_SEP "%s.desktop", dir->d_name, r->process_name);
171 if (stat(fn, &st) == 0) {
176 closedir(desktopfiles_dir);
187 if (st.st_mtime == r->mtime) {
188 /* Theoretically the filename could have changed, but if so
189 having the same mtime is very unlikely so not worth tracking it in r */
193 pa_log_debug("Found %s (which has been updated since we last checked).", fn);
195 pa_log_debug("Found %s.", fn);
198 r->mtime = st.st_mtime;
199 pa_xfree(r->application_name);
200 pa_xfree(r->icon_name);
202 r->application_name = r->icon_name = r->role = NULL;
204 pa_proplist_clear(r->proplist);
206 table[0].data = &r->application_name;
207 table[1].data = &r->icon_name;
209 if (pa_config_parse(fn, NULL, table, NULL, r) < 0)
210 pa_log_warn("Failed to parse .desktop file %s.", fn);
215 static void apply_rule(struct rule *r, pa_proplist *p) {
223 pa_proplist_update(p, PA_UPDATE_MERGE, r->proplist);
226 if (!pa_proplist_contains(p, PA_PROP_APPLICATION_ICON_NAME))
227 pa_proplist_sets(p, PA_PROP_APPLICATION_ICON_NAME, r->icon_name);
229 if (r->application_name) {
232 t = pa_proplist_gets(p, PA_PROP_APPLICATION_NAME);
234 if (!t || pa_streq(t, r->process_name))
235 pa_proplist_sets(p, PA_PROP_APPLICATION_NAME, r->application_name);
239 if (!pa_proplist_contains(p, PA_PROP_MEDIA_ROLE))
240 pa_proplist_sets(p, PA_PROP_MEDIA_ROLE, r->role);
243 static void make_room(pa_hashmap *cache) {
246 while (pa_hashmap_size(cache) >= MAX_CACHE_SIZE) {
249 pa_assert_se(r = pa_hashmap_steal_first(cache));
254 static pa_hook_result_t process(struct userdata *u, pa_proplist *p) {
262 if (!(pn = pa_proplist_gets(p, PA_PROP_APPLICATION_PROCESS_BINARY)))
265 if (*pn == '.' || strchr(pn, '/'))
270 pa_log_debug("Looking for .desktop file for %s", pn);
272 if ((r = pa_hashmap_get(u->cache, pn))) {
273 if (now-r->timestamp > STAT_INTERVAL) {
280 r = pa_xnew0(struct rule, 1);
281 r->process_name = pa_xstrdup(pn);
283 pa_hashmap_put(u->cache, r->process_name, r);
291 static pa_hook_result_t client_new_cb(pa_core *core, pa_client_new_data *data, struct userdata *u) {
292 pa_core_assert_ref(core);
296 return process(u, data->proplist);
299 static pa_hook_result_t client_proplist_changed_cb(pa_core *core, pa_client *client, struct userdata *u) {
300 pa_core_assert_ref(core);
304 return process(u, client->proplist);
307 int pa__init(pa_module *m) {
308 pa_modargs *ma = NULL;
313 if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
314 pa_log("Failed to parse module arguments");
318 m->userdata = u = pa_xnew(struct userdata, 1);
320 u->cache = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
321 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);
322 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);
337 void pa__done(pa_module *m) {
342 if (!(u = m->userdata))
345 if (u->client_new_slot)
346 pa_hook_slot_free(u->client_new_slot);
347 if (u->client_proplist_changed_slot)
348 pa_hook_slot_free(u->client_proplist_changed_slot);
351 pa_hashmap_free(u->cache, (pa_free_cb_t) rule_free);