From 450ad85b35bd600ed020f7ec119d51e7e7bc01a4 Mon Sep 17 00:00:00 2001 From: Lennart Poettering Date: Mon, 27 Sep 2004 21:05:55 +0000 Subject: try to use file sample type for cache entries and play-file playback allow paplay to use STDIN add new module: module-match git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@244 fefdeb5f-60dc-0310-8127-8f9354f1896f --- polyp/module-match.c | 217 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 217 insertions(+) create mode 100644 polyp/module-match.c (limited to 'polyp/module-match.c') diff --git a/polyp/module-match.c b/polyp/module-match.c new file mode 100644 index 00000000..964ff2fd --- /dev/null +++ b/polyp/module-match.c @@ -0,0 +1,217 @@ +/* $Id$ */ + +/*** + This file is part of polypaudio. + + polypaudio 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. + + polypaudio 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 polypaudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include +#endif + +#include +#include +#include +#include +#include +#include +#include +#include + +#include "module.h" +#include "util.h" +#include "modargs.h" +#include "log.h" +#include "subscribe.h" +#include "xmalloc.h" +#include "sink-input.h" + +PA_MODULE_AUTHOR("Lennart Poettering") +PA_MODULE_DESCRIPTION("Sink input matching module") +PA_MODULE_USAGE("table=") +PA_MODULE_VERSION(PACKAGE_VERSION) + +#define WHITESPACE "\n\r \t" + +static const char* const valid_modargs[] = { + "table", + NULL, +}; + +struct rule { + regex_t regex; + pa_volume_t volume; + struct rule *next; +}; + +struct userdata { + struct rule *rules; + struct pa_subscription *subscription; +}; + +static int load_rules(struct userdata *u, const char *filename) { + FILE *f; + int n = 0; + int ret = -1; + struct rule *end = NULL; + + if (!(f = fopen(filename, "r"))) { + pa_log(__FILE__": failed to open file '%s': %s\n", filename, strerror(errno)); + goto finish; + } + + while (!feof(f)) { + char *d, *v, *e = NULL; + pa_volume_t volume; + regex_t regex; + char ln[256]; + struct rule *rule; + + if (!fgets(ln, sizeof(ln), f)) + break; + + n++; + + pa_strip_nl(ln); + + if (ln[0] == '#' || !*ln ) + continue; + + d = ln+strcspn(ln, WHITESPACE); + v = d+strspn(d, WHITESPACE); + + + if (!*v) { + pa_log(__FILE__ ": [%s:%u] failed to parse line - too few words\n", filename, n); + goto finish; + } + + *d = 0; + + volume = (pa_volume_t) strtol(v, &e, 0); + + if (!e || *e) { + pa_log(__FILE__": [%s:%u] failed to parse volume\n", filename, n); + goto finish; + } + + if (regcomp(®ex, ln, REG_EXTENDED|REG_NOSUB) != 0) { + pa_log(__FILE__": [%s:%u] invalid regular expression\n", filename, n); + goto finish; + } + + rule = pa_xmalloc(sizeof(struct rule)); + rule->regex = regex; + rule->volume = volume; + rule->next = NULL; + + if (end) + end->next = rule; + else + u->rules = rule; + end = rule; + + *d = 0; + } + + ret = 0; + +finish: + if (f) + fclose(f); + + return ret; +} + +static void callback(struct pa_core *c, enum pa_subscription_event_type t, uint32_t index, void *userdata) { + struct userdata *u = userdata; + struct pa_sink_input *si; + struct rule *r; + assert(c && u); + + if (t != (PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_NEW)) + return; + + if (!(si = pa_idxset_get_by_index(c->sink_inputs, index))) { + pa_log(__FILE__": WARNING: failed to get sink input\n"); + return; + } + + if (!si->name) + return; + + for (r = u->rules; r; r = r->next) { + if (!regexec(&r->regex, si->name, 0, NULL, 0)) { + pa_log(__FILE__": changing volume of sink input '%s' to 0x%03x\n", si->name, r->volume); + pa_sink_input_set_volume(si, r->volume); + } + } +} + +int pa__init(struct pa_core *c, struct pa_module*m) { + struct pa_modargs *ma = NULL; + int ret = -1; + const char *table_file; + struct userdata *u; + assert(c && m); + + if (!(ma = pa_modargs_new(m->argument, valid_modargs)) || + !(table_file = pa_modargs_get_value(ma, "table", NULL))) { + pa_log(__FILE__": Failed to parse module arguments\n"); + goto finish; + } + + u = pa_xmalloc(sizeof(struct userdata)); + u->rules = NULL; + u->subscription = NULL; + + if (load_rules(u, table_file) < 0) + goto finish; + + u->subscription = pa_subscription_new(c, PA_SUBSCRIPTION_MASK_SINK_INPUT, callback, u); + + ret = 0; + +finish: + if (ma) + pa_modargs_free(ma); + + return ret; +} + +void pa__done(struct pa_core *c, struct pa_module*m) { + struct userdata* u; + struct rule *r, *n; + assert(c && m); + + if (!(u = m->userdata)) + return; + + if (u->subscription) + pa_subscription_free(u->subscription); + + for (r = u->rules; r; r = n) { + n = r->next; + + regfree(&r->regex); + pa_xfree(r); + } + + pa_xfree(u); +} + + -- cgit