* #27232: jni: added pjproject checkout as regular git content
We will remove it once the next release of pjsip (with Android support)
comes out and is merged into SFLphone.
diff --git a/jni/pjproject-android/pjsip-apps/src/samples/playsine.c b/jni/pjproject-android/pjsip-apps/src/samples/playsine.c
new file mode 100644
index 0000000..03d8946
--- /dev/null
+++ b/jni/pjproject-android/pjsip-apps/src/samples/playsine.c
@@ -0,0 +1,318 @@
+/* $Id: playsine.c 4537 2013-06-19 06:47:43Z riza $ */
+/*
+ * Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com)
+ * Copyright (C) 2003-2008 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
+ */
+
+
+/**
+ * \page page_pjmedia_samples_playsine_c Samples: Using Custom Ports (Sine Wave Generator)
+ *
+ * This example demonstrate how to create a custom media port (in this case, a
+ * sine wave generator) and connect it to the sound device.
+ *
+ * This file is pjsip-apps/src/samples/playsine.c
+ *
+ * \includelineno playsine.c
+ */
+
+/*
+ * playsine.c
+ *
+ * PURPOSE:
+ * Demonstrate how to create and use custom media port which
+ * simply feed a sine wav to the sound player.
+ *
+ * USAGE:
+ * playsine [nchannel]
+ *
+ * where:
+ * nchannel is 1 for mono (this is the default) or 2 for stereo.
+ */
+
+#include <pjmedia.h>
+#include <pjlib.h>
+
+#include <stdlib.h> /* atoi() */
+#include <stdio.h>
+#include <math.h> /* sin() */
+
+/* For logging purpose. */
+#define THIS_FILE "playsine.c"
+
+
+/* Util to display the error message for the specified error code */
+static int app_perror( const char *sender, const char *title,
+ pj_status_t status)
+{
+ char errmsg[PJ_ERR_MSG_SIZE];
+
+ PJ_UNUSED_ARG(sender);
+
+ pj_strerror(status, errmsg, sizeof(errmsg));
+
+ printf("%s: %s [code=%d]\n", title, errmsg, status);
+ return 1;
+}
+
+
+/* Struct attached to sine generator */
+typedef struct
+{
+ pj_int16_t *samples; /* Sine samples. */
+} port_data;
+
+
+/* This callback is called to feed more samples */
+static pj_status_t sine_get_frame( pjmedia_port *port,
+ pjmedia_frame *frame)
+{
+ port_data *sine = port->port_data.pdata;
+ pj_int16_t *samples = frame->buf;
+ unsigned i, left, right;
+ pj_size_t count;
+
+ /* Get number of samples */
+ count = frame->size / 2 / PJMEDIA_PIA_CCNT(&port->info);
+
+ left = 0;
+ right = 0;
+
+ for (i=0; i<count; ++i) {
+ *samples++ = sine->samples[left];
+ ++left;
+
+ if (PJMEDIA_PIA_CCNT(&port->info) == 2) {
+ *samples++ = sine->samples[right];
+ right += 2; /* higher pitch so we can distinguish left and right. */
+ if (right >= count)
+ right = 0;
+ }
+ }
+
+ /* Must set frame->type correctly, otherwise the sound device
+ * will refuse to play.
+ */
+ frame->type = PJMEDIA_FRAME_TYPE_AUDIO;
+
+ return PJ_SUCCESS;
+}
+
+#ifndef M_PI
+#define M_PI (3.14159265)
+#endif
+
+/*
+ * Create a media port to generate sine wave samples.
+ */
+static pj_status_t create_sine_port(pj_pool_t *pool,
+ unsigned sampling_rate,
+ unsigned channel_count,
+ pjmedia_port **p_port)
+{
+ pjmedia_port *port;
+ unsigned i;
+ unsigned count;
+ pj_str_t name;
+ port_data *sine;
+
+ PJ_ASSERT_RETURN(pool && channel_count > 0 && channel_count <= 2,
+ PJ_EINVAL);
+
+ port = pj_pool_zalloc(pool, sizeof(pjmedia_port));
+ PJ_ASSERT_RETURN(port != NULL, PJ_ENOMEM);
+
+ /* Fill in port info. */
+ name = pj_str("sine generator");
+ pjmedia_port_info_init(&port->info, &name,
+ PJMEDIA_SIG_CLASS_PORT_AUD('s', 'i'),
+ sampling_rate,
+ channel_count,
+ 16, sampling_rate * 20 / 1000 * channel_count);
+
+ /* Set the function to feed frame */
+ port->get_frame = &sine_get_frame;
+
+ /* Create sine port data */
+ port->port_data.pdata = sine = pj_pool_zalloc(pool, sizeof(port_data));
+
+ /* Create samples */
+ count = PJMEDIA_PIA_SPF(&port->info) / channel_count;
+ sine->samples = pj_pool_alloc(pool, count * sizeof(pj_int16_t));
+ PJ_ASSERT_RETURN(sine->samples != NULL, PJ_ENOMEM);
+
+ /* initialise sinusoidal wavetable */
+ for( i=0; i<count; i++ )
+ {
+ sine->samples[i] = (pj_int16_t) (10000.0 *
+ sin(((double)i/(double)count) * M_PI * 8.) );
+ }
+
+ *p_port = port;
+
+ return PJ_SUCCESS;
+}
+
+
+/* Show usage */
+static void usage(void)
+{
+ puts("");
+ puts("Usage: playsine [nchannel]");
+ puts("");
+ puts("where");
+ puts(" nchannel is number of audio channels (1 for mono, or 2 for stereo).");
+ puts(" Default is 1 (mono).");
+ puts("");
+}
+
+
+/*
+ * main()
+ */
+int main(int argc, char *argv[])
+{
+ pj_caching_pool cp;
+ pjmedia_endpt *med_endpt;
+ pj_pool_t *pool;
+ pjmedia_port *sine_port;
+ pjmedia_snd_port *snd_port;
+ char tmp[10];
+ int channel_count = 1;
+ pj_status_t status;
+
+ if (argc == 2) {
+ channel_count = atoi(argv[1]);
+ if (channel_count < 1 || channel_count > 2) {
+ puts("Error: invalid arguments");
+ usage();
+ return 1;
+ }
+ }
+
+ /* Must init PJLIB first: */
+ 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, NULL, 1, &med_endpt);
+ PJ_ASSERT_RETURN(status == PJ_SUCCESS, 1);
+
+ /* Create memory pool for our sine generator */
+ pool = pj_pool_create( &cp.factory, /* pool factory */
+ "wav", /* pool name. */
+ 4000, /* init size */
+ 4000, /* increment size */
+ NULL /* callback on error */
+ );
+
+ /* Create a media port to generate sine wave samples. */
+ status = create_sine_port( pool, /* memory pool */
+ 11025, /* sampling rate */
+ channel_count,/* # of channels */
+ &sine_port /* returned port */
+ );
+ if (status != PJ_SUCCESS) {
+ app_perror(THIS_FILE, "Unable to create sine port", status);
+ return 1;
+ }
+
+ /* Create sound player port. */
+ status = pjmedia_snd_port_create_player(
+ pool, /* pool */
+ -1, /* use default dev. */
+ PJMEDIA_PIA_SRATE(&sine_port->info),/* clock rate. */
+ PJMEDIA_PIA_CCNT(&sine_port->info),/* # of channels. */
+ PJMEDIA_PIA_SPF(&sine_port->info), /* samples per frame. */
+ PJMEDIA_PIA_BITS(&sine_port->info),/* bits per sample. */
+ 0, /* options */
+ &snd_port /* returned port */
+ );
+ if (status != PJ_SUCCESS) {
+ app_perror(THIS_FILE, "Unable to open sound device", status);
+ return 1;
+ }
+
+ /* Connect sine generator port to the sound player
+ * Stream playing will commence immediately.
+ */
+ status = pjmedia_snd_port_connect( snd_port, sine_port);
+ PJ_ASSERT_RETURN(status == PJ_SUCCESS, 1);
+
+
+
+ /*
+ * Audio should be playing in a loop now, using sound device's thread.
+ */
+
+
+ /* Sleep to allow log messages to flush */
+ pj_thread_sleep(100);
+
+
+ puts("Playing sine wave..");
+ puts("");
+ puts("Press <ENTER> to stop playing and quit");
+
+ if (fgets(tmp, sizeof(tmp), stdin) == NULL) {
+ puts("EOF while reading stdin, will quit now..");
+ }
+
+
+ /* Start deinitialization: */
+
+ /* Disconnect sound port from file port */
+ status = pjmedia_snd_port_disconnect(snd_port);
+ PJ_ASSERT_RETURN(status == PJ_SUCCESS, 1);
+
+ /* Without this sleep, Windows/DirectSound will repeteadly
+ * play the last frame during destroy.
+ */
+ pj_thread_sleep(100);
+
+ /* Destroy sound device */
+ status = pjmedia_snd_port_destroy( snd_port );
+ PJ_ASSERT_RETURN(status == PJ_SUCCESS, 1);
+
+
+ /* Destroy sine generator */
+ status = pjmedia_port_destroy( sine_port );
+ PJ_ASSERT_RETURN(status == PJ_SUCCESS, 1);
+
+
+ /* Release application pool */
+ pj_pool_release( pool );
+
+ /* Destroy media endpoint. */
+ pjmedia_endpt_destroy( med_endpt );
+
+ /* Destroy pool factory */
+ pj_caching_pool_destroy( &cp );
+
+ /* Shutdown PJLIB */
+ pj_shutdown();
+
+
+ /* Done. */
+ return 0;
+}