From 9f59b4e1cd516dbbc8a4978146bc94f2a1ce75eb Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Mon, 19 Jun 2006 11:27:00 +0000
Subject: add new test "interpol-test"

git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1027 fefdeb5f-60dc-0310-8127-8f9354f1896f
---
 src/tests/interpol-test.c | 168 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 168 insertions(+)
 create mode 100644 src/tests/interpol-test.c

(limited to 'src/tests/interpol-test.c')

diff --git a/src/tests/interpol-test.c b/src/tests/interpol-test.c
new file mode 100644
index 00000000..26a92dbf
--- /dev/null
+++ b/src/tests/interpol-test.c
@@ -0,0 +1,168 @@
+/* $Id$ */
+
+/***
+  This file is part of polypaudio.
+ 
+  polypaudio is free software; you can redistribute it and/or modify
+  it under the terms of the GNU Lesser 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 Lesser 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 <signal.h>
+#include <string.h>
+#include <errno.h>
+#include <unistd.h>
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <getopt.h>
+#include <math.h>
+#include <pthread.h>
+
+#include <polyp/polypaudio.h>
+#include <polyp/mainloop.h>
+
+static pa_context *context = NULL;
+static pa_stream *stream = NULL;
+static pa_mainloop_api *mainloop_api = NULL;
+
+static void stream_write_cb(pa_stream *p, size_t length, void *userdata) {
+
+    /* Just some silence */
+    pa_stream_write(p, pa_xmalloc0(length), length, pa_xfree, 0, PA_SEEK_RELATIVE);
+}
+
+/* This is called whenever the context status changes */
+static void context_state_callback(pa_context *c, void *userdata) {
+    assert(c);
+
+    switch (pa_context_get_state(c)) {
+        case PA_CONTEXT_CONNECTING:
+        case PA_CONTEXT_AUTHORIZING:
+        case PA_CONTEXT_SETTING_NAME:
+            break;
+        
+        case PA_CONTEXT_READY: {
+
+            static const pa_sample_spec ss = {
+                .format = PA_SAMPLE_S16LE,
+                .rate = 44100,
+                .channels = 1
+            };
+            
+            fprintf(stderr, "Connection established.\n");
+
+            stream = pa_stream_new(c, "interpol-test", &ss, NULL);
+            assert(stream);
+            
+            pa_stream_connect_playback(stream, NULL, NULL, PA_STREAM_INTERPOLATE_TIMING|PA_STREAM_AUTO_TIMING_UPDATE, NULL, NULL);
+            pa_stream_set_write_callback(stream, stream_write_cb, NULL);
+                
+            break;
+        }
+            
+        case PA_CONTEXT_TERMINATED:
+            break;
+
+        case PA_CONTEXT_FAILED:
+        default:
+            fprintf(stderr, "Context error: %s\n", pa_strerror(pa_context_errno(c)));
+            abort();
+    }
+}
+
+int main(int argc, char *argv[]) {
+    pa_threaded_mainloop* m = NULL;
+    int k, r;
+    struct timeval start, last_info = { 0, 0 };
+    pa_usec_t old_t = 0, old_rtc = 0;
+
+    /* Set up a new main loop */
+    m = pa_threaded_mainloop_new();
+    assert(m);
+
+    mainloop_api = pa_threaded_mainloop_get_api(m);
+
+    context = pa_context_new(mainloop_api, argv[0]);
+    assert(context);
+
+    pa_context_set_state_callback(context, context_state_callback, NULL);
+
+    r = pa_context_connect(context, NULL, 0, NULL);
+    assert(r >= 0);
+
+    pa_gettimeofday(&start);
+    
+    pa_threaded_mainloop_start(m);
+
+    for (k = 0; k < 5000; k++) {
+        int success = 0, changed = 0;
+        pa_usec_t t, rtc;
+        struct timeval now, tv;
+        
+        pa_threaded_mainloop_lock(m);
+
+        if (stream) {
+            const pa_timing_info *info;
+            
+            if (pa_stream_get_time(stream, &t) >= 0)
+                success = 1;
+
+            if ((info = pa_stream_get_timing_info(stream)))
+                if (last_info.tv_usec != info->timestamp.tv_usec || last_info.tv_sec != info->timestamp.tv_sec) {
+                    changed = 1;
+                    last_info = info->timestamp;
+                }
+        }
+        
+        pa_threaded_mainloop_unlock(m);
+        
+        if (success) {
+            pa_gettimeofday(&now);
+
+            rtc = pa_timeval_diff(&now, &start);
+            printf("%i\t%llu\t%llu\t%llu\t%llu\t%u\n", k, rtc, t, rtc-old_rtc, t-old_t, changed*2000000);
+            old_t = t;
+            old_rtc = rtc;
+        }
+
+        /* Spin loop, eerks but normal usleep is just to badly grained */
+
+        tv = now;
+        while (pa_timeval_diff(pa_gettimeofday(&now), &tv) < 1000)
+            pthread_yield();
+    }
+
+    if (m)
+        pa_threaded_mainloop_stop(m);
+
+    if (stream) {
+        pa_stream_disconnect(stream);
+        pa_stream_unref(stream);
+    }
+    
+    if (context) {
+        pa_context_disconnect(context);
+        pa_context_unref(context);
+    }
+
+    if (m)
+        pa_threaded_mainloop_free(m);
+    
+    return 0;
+}
-- 
cgit