From 7be3db60a0efba40a0c10a4476490a05fa62a1bc Mon Sep 17 00:00:00 2001
From: Ludovic Pouzenc <ludovic@pouzenc.fr>
Date: Thu, 17 May 2012 18:41:13 +0000
Subject: Ajout des premiers bouts de code pour les tests : test1 = prise de
 son via pulse audio (à l'arache avec le modèle "simple") test2 = premières
 illuminations avec le projo LED test3 = fade R/G/B et jeu avec les
 problématiques de timing test4 = à faire : Appli GTK pour assembler les tests
 précédents
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git-svn-id: file:///var/svn/2012-violon-leds/trunk@2 6be1fa4d-33ac-4c33-becc-79fcb3794bb6
---
 tests/test1/test1.c | 121 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 121 insertions(+)
 create mode 100644 tests/test1/test1.c

(limited to 'tests/test1/test1.c')

diff --git a/tests/test1/test1.c b/tests/test1/test1.c
new file mode 100644
index 0000000..e99d2ff
--- /dev/null
+++ b/tests/test1/test1.c
@@ -0,0 +1,121 @@
+/***
+  This file is part of PulseAudio.
+
+  PulseAudio 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 2.1 of the License,
+  or (at your option) any later version.
+
+  PulseAudio 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 PulseAudio; 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 <stdio.h>
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+
+#include <pulse/simple.h>
+#include <pulse/error.h>
+
+#define BUFSIZE 1024
+
+/* A simple routine calling UNIX write() in a loop */
+static ssize_t loop_write(int fd, const void*data, size_t size) {
+	ssize_t ret = 0;
+
+	while (size > 0) {
+		ssize_t r;
+
+		if ((r = write(fd, data, size)) < 0)
+			return r;
+
+		if (r == 0)
+			break;
+
+		ret += r;
+		data = (const uint8_t*) data + r;
+		size -= (size_t) r;
+	}
+
+	return ret;
+}
+
+int main(int argc, char*argv[]) {
+
+
+	/* The sample type to use */
+	static const pa_sample_spec ss = {
+		.format = PA_SAMPLE_S16LE,
+		.rate = 44100,
+		.channels = 2
+	};
+	pa_simple *s = NULL;
+	int ret = 1;
+	int error;
+	int i,j;
+	float sum;
+
+	/* Create the recording stream */
+	if (!(s = pa_simple_new(NULL, argv[0], PA_STREAM_RECORD, NULL, "record", &ss, NULL, NULL, &error))) {
+		fprintf(stderr, __FILE__": pa_simple_new() failed: %s\n", pa_strerror(error));
+		goto finish;
+	}
+
+	j=0;
+	for (;;) {
+		uint8_t buf[BUFSIZE];
+
+		/* Record some data ... */
+		if (pa_simple_read(s, buf, sizeof(buf), &error) < 0) {
+			fprintf(stderr, __FILE__": pa_simple_read() failed: %s\n", pa_strerror(error));
+			goto finish;
+		}
+
+//printf("DEBUG : BUFSIZE==%i\n", BUFSIZE);
+		sum=0;
+		for (i=0;i<BUFSIZE;i=i+4) {
+//printf("DEBUG : i==%i\n", i);
+			sum= (buf[i]*256+buf[i+1] -26000 );
+		}
+		
+		if ( sum > 2000 || sum < -2000) {
+			printf("!"); 
+		} else {
+			printf("."); 
+		}
+		fflush(stdout);
+
+		//printf("%i\t%f\n", j++, sum);
+/*		if (printf("%f\n", sum)) {
+			fprintf(stderr, __FILE__": write() failed: %s\n", strerror(errno));
+			goto finish;
+		}
+*/
+		/* And write it to STDOUT 
+		if (loop_write(STDOUT_FILENO, buf, sizeof(buf)) != sizeof(buf)) {
+			fprintf(stderr, __FILE__": write() failed: %s\n", strerror(errno));
+			goto finish;
+		}*/
+	}
+
+	ret = 0;
+
+finish:
+
+	if (s)
+		pa_simple_free(s);
+
+	return ret;
+}
-- 
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