Changeset 1482 for pjproject/trunk/pjsip/src/pjsua-lib/pjsua_media.c

Timestamp:

Oct 6, 2007 5:31:09 PM (17 years ago)

Author:

bennylp

Message:

Ticket #393: Added configuration to set basic audio frame length to minimize audio latency in pjsua-lib

File:

• pjproject/trunk/pjsip/src/pjsua-lib/pjsua_media.c (modified) (4 diffs)

pjproject/trunk/pjsip/src/pjsua-lib/pjsua_media.c

@@ -23 +23 @@
 #define THIS_FILE               "pjsua_media.c"
 
-#define PTIME               20
-#define FPS                 (1000/PTIME)
 #define DEFAULT_RTP_PORT    4000
 
@@ -156 +154 @@
      */
     pjsua_var.mconf_cfg.samples_per_frame = pjsua_var.media_cfg.clock_rate * 
-                                            PTIME / 1000;
+                                            pjsua_var.media_cfg.audio_frame_ptime / 
+                                            1000;
     pjsua_var.mconf_cfg.channel_count = 1;
     pjsua_var.mconf_cfg.bits_per_sample = 16;
@@ -1649 +1648 @@
     for (i=0; i<PJ_ARRAY_SIZE(clock_rates); ++i) {
         char errmsg[PJ_ERR_MSG_SIZE];
+        unsigned fps;
 
         PJ_LOG(4,(THIS_FILE, 
@@ -1655 +1655 @@
 
         /* Create the sound device. Sound port will start immediately. */
+        fps = 1000 / pjsua_var.media_cfg.audio_frame_ptime;
         status = pjmedia_snd_port_create(pjsua_var.pool, capture_dev,
                                          playback_dev, 
                                          clock_rates[i], 1,
-                                         clock_rates[i]/FPS,
+                                         clock_rates[i]/fps,
                                          16, 0, &pjsua_var.snd_port);