1 files changed, 44 insertions, 0 deletions
diff --git a/unittest/freedv_700d_comptx.c b/unittest/freedv_700d_comptx.c
new file mode 100644
index 0000000..9f66c76
--- /dev/null
+++ b/unittest/freedv_700d_comptx.c
@@ -0,0 +1,44 @@
+/*---------------------------------------------------------------------------*\
+
+  freedv_comptx.c
+
+  Complex valued Tx to support ctests.
+
+\*---------------------------------------------------------------------------*/
+
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "freedv_api.h"
+
+int main(int argc, char *argv[]) {
+  struct freedv *freedv;
+
+  freedv = freedv_open(FREEDV_MODE_700D);
+  assert(freedv != NULL);
+
+  /* handy functions to set buffer sizes */
+  int n_speech_samples = freedv_get_n_speech_samples(freedv);
+  short speech_in[n_speech_samples];
+  int n_nom_modem_samples = freedv_get_n_nom_modem_samples(freedv);
+  COMP mod_out[n_nom_modem_samples];
+  short mod_out_short[2 * n_nom_modem_samples];
+
+  /* OK main loop  --------------------------------------- */
+
+  while (fread(speech_in, sizeof(short), n_speech_samples, stdin) ==
+         n_speech_samples) {
+    freedv_comptx(freedv, mod_out, speech_in);
+    for (int i = 0; i < n_nom_modem_samples; i++) {
+      mod_out_short[2 * i] = mod_out[i].real;
+      mod_out_short[2 * i + 1] = mod_out[i].imag;
+    }
+    fwrite(mod_out_short, sizeof(short), 2 * n_nom_modem_samples, stdout);
+  }
+
+  freedv_close(freedv);
+
+  return 0;
+}