test multichannel

test/test_tone.cpp

@@ -18,12 +18,13 @@
 #include <stdio.h>
 #include <stdlib.h>
 
-// #define ENABLE_NORMAL_LOG
-// #define ENABLE_VERBOSE_LOG
+#define ENABLE_NORMAL_LOG
+//#define ENABLE_VERBOSE_LOG
 #include "common.h"
 
 #define SAMPLE_FREQUENCY 48000
-#define STREAM_FORMAT CUBEB_SAMPLE_S16LE
+#define STREAM_FORMAT   CUBEB_SAMPLE_FLOAT32NE
+#define CHANNELS 11
 
 /* store the phase of the generated waveform */
 struct cb_user_data {
@@ -35,25 +36,21 @@ data_cb_tone(cubeb_stream * stream, void * user, const void * /*inputbuffer*/,
              void * outputbuffer, long nframes)
 {
   struct cb_user_data * u = (struct cb_user_data *)user;
-  short * b = (short *)outputbuffer;
+  float * b = (float *)outputbuffer;
   float t1, t2;
   int i;
 
   if (stream == NULL || u == NULL)
     return CUBEB_ERROR;
 
+  int base_freq = 300;
+  int wr_idx = 0;
   /* generate our test tone on the fly */
   for (i = 0; i < nframes; i++) {
-    /* North American dial tone */
-    t1 = sin(2 * M_PI * (i + u->position) * 350 / SAMPLE_FREQUENCY);
-    t2 = sin(2 * M_PI * (i + u->position) * 440 / SAMPLE_FREQUENCY);
-    b[i] = (SHRT_MAX / 2) * t1;
-    b[i] += (SHRT_MAX / 2) * t2;
-    /* European dial tone */
-    /*
-    t1 = sin(2*M_PI*(i + u->position)*425/SAMPLE_FREQUENCY);
-    b[i]  = SHRT_MAX * t1;
-    */
+      for (int c = 0; c < CHANNELS; c++) {
+          t1 = sin(2 * M_PI * (i + u->position) * base_freq*(1+c/2.) / SAMPLE_FREQUENCY);
+          b[wr_idx++] = t1;
+      }
   }
   /* remember our phase to avoid clicking on buffer transitions */
   /* we'll still click if position overflows */
@@ -102,8 +99,8 @@ TEST(cubeb, tone)
 
   params.format = STREAM_FORMAT;
   params.rate = SAMPLE_FREQUENCY;
-  params.channels = 1;
-  params.layout = CUBEB_LAYOUT_MONO;
+  params.channels = CHANNELS;
+  params.layout = 0;
   params.prefs = CUBEB_STREAM_PREF_NONE;
 
   std::unique_ptr<cb_user_data> user_data(new cb_user_data());
@@ -120,7 +117,7 @@ TEST(cubeb, tone)
       cleanup_stream_at_exit(stream, cubeb_stream_destroy);
 
   cubeb_stream_start(stream);
-  delay(5000);
+  getchar();
   cubeb_stream_stop(stream);
 
   ASSERT_TRUE(user_data->position.load());