Changeset 2369 for pjproject/trunk/pjsip-apps/src/samples/level.c

Timestamp:

Nov 19, 2008 2:48:48 PM (15 years ago)

Author:

bennylp

Message:

Small modifications to level.c sample to print out the timeline and linear level

File:

• pjproject/trunk/pjsip-apps/src/samples/level.c (modified) (3 diffs)

pjproject/trunk/pjsip-apps/src/samples/level.c

@@ -73 +73 @@
 int main(int argc, char *argv[])
 {
-    enum { NSAMPLES = 160, COUNT=100 };
+    enum { NSAMPLES = 640, COUNT=100 };
     pj_caching_pool cp;
     pjmedia_endpt *med_endpt;
@@ -124 +124 @@
     }
 
+    if (file_port->info.samples_per_frame > NSAMPLES) {
+        app_perror(THIS_FILE, "WAV clock rate is too big", PJ_EINVAL);
+        return 1;
+    }
+
+    puts("Time\tPCMU\tLinear");
+    puts("------------------------");
+
     for (i=0; i<COUNT; ++i) {
         pj_int16_t framebuf[NSAMPLES];
         pjmedia_frame frm;
         pj_int32_t level32;
+        unsigned ms;
         int level;
 
@@ -135 +144 @@
         pjmedia_port_get_frame(file_port, &frm);
 
-        level32 = pjmedia_calc_avg_signal( framebuf, NSAMPLES );
+        level32 = pjmedia_calc_avg_signal(framebuf, 
+                                          file_port->info.samples_per_frame);
         level = pjmedia_linear2ulaw(level32) ^ 0xFF;
 
-        printf("%d ", level);
+        ms = i * 1000 * file_port->info.samples_per_frame /
+                        file_port->info.clock_rate;
+        printf("%03d.%03d\t%7d\t%7d\n", 
+                ms/1000, ms%1000, level, level32);
     }
     puts("");