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

1 files changed, 217 insertions, 0 deletions

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 <config.h>
+#endif
+
+#include <unistd.h>
+#include <assert.h>
+#include <string.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <regex.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#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=<filename>")
+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(&regex, 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);
+}
+
+