Added more samples: WAV recorder, resample, etc., and also moved some common functions to util.h

git-svn-id: http://svn.pjsip.org/repos/pjproject/trunk@361 74dad513-b988-da41-8d7b-12977e46ad98

1 files changed, 183 insertions, 0 deletions

diff --git a/pjsip-apps/src/samples/recfile.c b/pjsip-apps/src/samples/recfile.c
new file mode 100644
index 00000000..3fd96125
--- /dev/null
+++ b/pjsip-apps/src/samples/recfile.c
@@ -0,0 +1,183 @@
+/* $Id$ */
+/* 
+ * 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 
+ */
+
+
+#include <pjmedia.h>
+#include <pjlib.h>
+
+#include <stdio.h>
+
+/* For logging purpose. */
+#define THIS_FILE   "recfile.c"
+
+/* Configs */
+#define CLOCK_RATE	    44100
+#define SAMPLES_PER_FRAME   (CLOCK_RATE * 20 / 1000)
+#define NCHANNELS	    2
+#define BITS_PER_SAMPLE	    16
+
+
+static const char *desc = 
+ " FILE					    \n"
+ "  recfile.c				    \n"
+ "					    \n"
+ " PURPOSE:				    \n"
+ "  Record microphone to WAVE file.	    \n"
+ "					    \n"
+ " USAGE:				    \n"
+ "  recfile FILE.WAV			    \n"
+ "";
+
+
+/* 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;
+}
+
+
+/*
+ * main()
+ */
+int main(int argc, char *argv[])
+{
+    pj_caching_pool cp;
+    pjmedia_endpt *med_endpt;
+    pj_pool_t *pool;
+    pjmedia_port *file_port;
+    pjmedia_snd_port *snd_port;
+    char tmp[10];
+    pj_status_t status;
+
+
+    /* Verify cmd line arguments. */
+    if (argc != 2) {
+	puts("");
+	puts(desc);
+	return 0;
+    }
+
+    /* 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 file player */
+    pool = pj_pool_create( &cp.factory,	    /* pool factory	    */
+			   "app",	    /* pool name.	    */
+			   4000,	    /* init size	    */
+			   4000,	    /* increment size	    */
+			   NULL		    /* callback on error    */
+			   );
+
+    /* Create WAVE file writer port. */
+    status = pjmedia_file_writer_port_create( pool, argv[1],
+					      CLOCK_RATE,
+					      NCHANNELS,
+					      SAMPLES_PER_FRAME,
+					      BITS_PER_SAMPLE,
+					      0, 0, NULL,
+					      &file_port);
+    if (status != PJ_SUCCESS) {
+	app_perror(THIS_FILE, "Unable to open WAV file for writing", status);
+	return 1;
+    }
+
+    /* Create sound player port. */
+    status = pjmedia_snd_port_create_rec( 
+		 pool,				    /* pool		    */
+		 -1,				    /* use default dev.	    */
+		 file_port->info.sample_rate,	    /* clock rate.	    */
+		 file_port->info.channel_count,	    /* # of channels.	    */
+		 file_port->info.samples_per_frame, /* samples per frame.   */
+		 file_port->info.bits_per_sample,   /* 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 file port to the sound player.
+     * Stream playing will commence immediately.
+     */
+    status = pjmedia_snd_port_connect( snd_port, file_port);
+    PJ_ASSERT_RETURN(status == PJ_SUCCESS, 1);
+
+
+
+    /* 
+     * Recording should be started now. 
+     */
+
+
+    /* Sleep to allow log messages to flush */
+    pj_thread_sleep(10);
+
+
+    printf("Recodring %s..\n", argv[1]);
+    puts("");
+    puts("Press <ENTER> to stop recording and quit");
+
+    fgets(tmp, sizeof(tmp), stdin);
+
+    
+    /* Start deinitialization: */
+
+    /* Destroy sound device */
+    status = pjmedia_snd_port_destroy( snd_port );
+    PJ_ASSERT_RETURN(status == PJ_SUCCESS, 1);
+
+
+    /* Destroy file port */
+    status = pjmedia_port_destroy( file_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 );
+
+
+    /* Done. */
+    return 0;
+}