Added sndinfo sample and tested samples on MacOSX Jaguar
git-svn-id: https://svn.pjsip.org/repos/pjproject/trunk@342 74dad513-b988-da41-8d7b-12977e46ad98
diff --git a/pjsip-apps/src/samples/sndinfo.c b/pjsip-apps/src/samples/sndinfo.c
new file mode 100644
index 0000000..efd761c
--- /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;
+}
+
+