Added sndinfo sample and tested samples on MacOSX Jaguar

git-svn-id: http://svn.pjsip.org/repos/pjproject/trunk@342 74dad513-b988-da41-8d7b-12977e46ad98

2 files changed, 177 insertions, 2 deletions

diff --git a/pjsip-apps/src/samples/playsine.c b/pjsip-apps/src/samples/playsine.c
index f7a555d4..1040d8fd 100644
--- a/pjsip-apps/src/samples/playsine.c
+++ b/pjsip-apps/src/samples/playsine.c
@@ -17,8 +17,6 @@
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA 
  */
 
-#include <pjmedia.h>
-
 /*
  * playsine.c
  *
diff --git a/pjsip-apps/src/samples/sndinfo.c b/pjsip-apps/src/samples/sndinfo.c
new file mode 100644
index 00000000..efd761c2
--- /dev/null
+++ b/pjsip-apps/src/samples/sndinfo.c
@@ -0,0 +1,177 @@
+/* $Id$ */
+/* 
+ * Copyright (C) 2003-2006 Benny Prijono <benny@prijono.org>
+ *
+ * This program 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.
+ *
+ * This program 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA 
+ */
+
+static const char *desc = 
+ " sndinfo.c								    \n"
+ "									    \n"
+ " PURPOSE:								    \n"
+ "  Print sound device info and test open device.			    \n"
+ "									    \n"
+ " USAGE:								    \n"
+ "  sndinfo [id r/p clockrate nchan bits]				    \n"
+ "									    \n"
+ " DESCRIPTION:								    \n"
+ "  When invoked without any arguments, it displays information about all   \n"
+ "  sound devices in the system.					    \n"
+ "									    \n"
+ "  When invoked with arguments, the program tests if device can be opened  \n"
+ "  with the specified arguments. All these arguments must be specified:    \n"
+ "  - id         The device ID (-1 for the first capable device)	    \n"
+ "  - r/p        Specify r for recording/capture, p for playing.	    \n"
+ "  - clockrate  Specify clock rate (e.g. 8000, 11025, etc.)		    \n"
+ "  - nchan      Number of channels (1=mono, 2=stereo).			    \n"
+ "  - bits       Number of bits per sample (normally 16).		    \n";
+
+#include <pjmedia.h>
+#include <pjlib.h>
+
+#include <stdlib.h>	/* atoi() */
+#include <stdio.h>
+
+
+static void enum_devices(void)
+{
+    int i, count;
+    
+    count = pjmedia_snd_get_dev_count();
+    if (count == 0) {
+	puts("No devices found");
+	return;
+    }
+
+    for (i=0; i<count; ++i) {
+	const pjmedia_snd_dev_info *info;
+
+	info = pjmedia_snd_get_dev_info(i);
+	pj_assert(info != NULL);
+
+	printf( "Device #%02d: \n"
+		"  Name                : %s\n"
+		"  # of input channels : %d\n"
+		"  # of output channels: %d\n"
+		"  Default clock rate  : %d Hz\n\n",
+		i, info->name, info->input_count, info->output_count,
+		info->default_samples_per_sec);
+    }
+}
+
+
+static pj_status_t play_cb(void *user_data, pj_uint32_t timestamp,
+			   void *output, unsigned size)
+{
+    return PJ_SUCCESS;
+}
+
+static pj_status_t rec_cb(void *user_data, pj_uint32_t timestamp,
+			  const void *input, unsigned size)
+{
+    return PJ_SUCCESS;
+}
+
+static int open_device(int dev_id, int capturing, int clock_rate, 
+		       int nchannel, int bits)
+{
+    pj_status_t status;
+    unsigned nsamples;
+    pjmedia_snd_stream *strm;
+
+    nsamples = clock_rate * 20 / 1000;
+
+    printf( "Opening device %d: clockrate=%d, nchannel=%d, bits=%d, "
+	    "nsamples=%d..\n",
+	    dev_id, clock_rate, nchannel, bits, nsamples);
+
+    if (capturing) {
+	status = pjmedia_snd_open_recorder( dev_id, clock_rate, nchannel,
+					    nsamples, bits, &rec_cb, NULL,
+					    &strm);
+    } else {
+	status = pjmedia_snd_open_player( dev_id, clock_rate, nchannel,
+					  nsamples, bits, &play_cb, NULL,
+					  &strm);
+    }
+    
+    if (status != PJ_SUCCESS) {
+	char errmsg[PJ_ERR_MSG_SIZE];
+
+	pj_strerror(status, errmsg, sizeof(errmsg));	
+	printf( "Error: unable to open device %d for %s: %s (err=%d)\n",
+		dev_id, (capturing ? "capture" : "playback"),
+		errmsg, status);
+	return 1;
+	
+    } else {
+	puts("Device opened successfully");
+    }
+
+    pjmedia_snd_stream_close(strm);
+    return 0;
+}
+
+
+int main(int argc, char *argv[])
+{
+    pj_caching_pool cp;
+    pjmedia_endpt *med_endpt;
+    pj_status_t status;
+
+    /* Init pjlib */
+    status = pj_init();
+    PJ_ASSERT_RETURN(status==PJ_SUCCESS, 1);
+    
+    /* Must create a pool factory before we can allocate any memory. */
+    pj_caching_pool_init(&cp, &pj_pool_factory_default_policy, 0);
+
+    /* 
+     * Initialize media endpoint.
+     * This will implicitly initialize PJMEDIA too.
+     */
+    status = pjmedia_endpt_create(&cp.factory, &med_endpt);
+    PJ_ASSERT_RETURN(status == PJ_SUCCESS, 1);
+
+    
+    if (argc == 1) {
+	enum_devices();
+	return 0;
+    } else if (argc == 6) {
+	
+	int dev_id;
+	int capturing;
+	int clock_rate;
+	int nchannel;
+	int bits;
+
+	dev_id = atoi(argv[1]);
+	capturing = (strcmp(argv[2], "r") == 0);
+	clock_rate = atoi(argv[3]);
+	nchannel = atoi(argv[4]);
+	bits = atoi(argv[5]);
+
+	return open_device(dev_id, capturing, clock_rate, nchannel, bits);
+
+    } else {
+	puts("Error: invalid arguments");
+	puts(desc);
+	return 1;
+    }
+
+    return 0;
+}
+
+