Initial implementation of examples/beep.c

Initial implementation of examples/beep.c to exercise drone beeping!

2 files changed, 125 insertions, 1 deletions

diff --git a/examples/Makefile b/examples/Makefile
index 1146600..72e4c3d 100644
--- a/examples/Makefile
+++ b/examples/Makefile
@@ -8,7 +8,7 @@ LIBNAME		= xas
 CFLAGS		+= -I$(INCLUDE_PATH)
 LDFLAGS		+= -L../src -l$(LIBNAME) -lm
 
-EXAMPLES	= test open say spatial seq pod
+EXAMPLES	= test open say spatial seq pod beep
 
 all: $(EXAMPLES)
 
diff --git a/examples/beep.c b/examples/beep.c
new file mode 100644
index 0000000..fce565a
--- /dev/null
+++ b/examples/beep.c
@@ -0,0 +1,124 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+#include <sysexits.h>
+#include <fcntl.h>
+#include <math.h>
+
+#include <xas/audio.h>
+#include <xas/vox.h>
+#include <xas/bank.h>
+#include <xas/riff.h>
+#include <xas/spatial.h>
+#include <xas/drone.h>
+#include <xas/seq.h>
+
+static void usage(int argc, char **argv, const char *message, ...) {
+    va_list args;
+
+    va_start(args, message);
+
+    if (message) {
+        vfprintf(stderr, message, args);
+        fputc('\n', stderr);
+    }
+
+    va_end(args);
+
+    fprintf(stderr, "usage: %s output.wav\n", argv[0]);
+
+    exit(EX_USAGE);
+}
+
+int main(int argc, char **argv) {
+    xas_spatial_scene *scene;
+    xas_seq *seq;
+
+    xas_audio_stream *wave;
+
+    xas_audio_format format = {
+        .channels    = XAS_AUDIO_STEREO,
+        .sample_size = XAS_AUDIO_PCM_16_BIT,
+        .sample_rate = 44100
+    };
+
+    size_t buffer_size = 735;
+
+    xas_spatial_coord speakers[2] = {
+        { -0.09, 0.0, 0.0 },
+        {  0.09, 0.0, 0.0 }
+    };
+
+    xas_drone *drone;
+
+    struct timeval cur = { 0, 0 };
+
+    int mood;
+
+    if (argc < 2) {
+        usage(argc, argv, "No output file provided");
+    }
+
+    if ((wave = xas_riff_new_file(argv[1],
+                                    format,
+                                    O_WRONLY | O_CREAT | O_TRUNC)) == NULL) {
+        goto error_riff_new_file;
+    }
+
+    if ((scene = xas_spatial_scene_new(format,
+                                         speakers[0],
+                                         speakers[1])) == NULL) {
+        goto error_spatial_scene_new;
+    }
+
+    if ((seq = xas_seq_new(scene, buffer_size)) == NULL) {
+        goto error_seq_new;
+    }
+
+    if ((drone = xas_drone_new(scene,
+                                 (xas_spatial_coord){ 0.0, 0.0, -1.0 },
+                                 2646000,
+                                 4)) == NULL) {
+        goto error_drone_new;
+    }
+
+    timerclear(&cur);
+
+    for (mood=0; mood<6; mood++) {
+        struct timeval interval = { 0, 250000 },
+                       tmp;
+
+        xas_drone_seq_beep(drone,
+                             seq,
+                             mood,
+                             &cur);
+
+        timeradd(&cur, &interval, &tmp);
+
+        cur = tmp;
+    }
+
+    xas_seq_add_stop(seq, cur);
+
+    xas_seq_play(seq, wave);
+
+    xas_drone_destroy(drone);
+    xas_seq_destroy(seq);
+    xas_spatial_scene_destroy(scene);
+    xas_audio_stream_destroy(wave);
+
+    return EX_OK;
+
+error_drone_new:
+    xas_seq_destroy(seq);
+
+error_seq_new:
+    xas_spatial_scene_destroy(scene);
+
+error_spatial_scene_new:
+    xas_audio_stream_destroy(wave);
+
+error_riff_new_file:
+    return EX_OSERR;
+}