Ensure vox can only start, stop in correct state

1 files changed, 9 insertions, 3 deletions

diff --git a/src/vox.c b/src/vox.c
index 94d41dc..efe5346 100644
--- a/src/vox.c
+++ b/src/vox.c
@@ -66,7 +66,9 @@ static int vox_start(xas_vox *vox) {
 
     snprintf(sample_rate, sizeof(sample_rate)-1, "%zu", vox->format.sample_rate);
 
-    (void)vox_stop(vox);
+    if (vox->flags & XAS_VOX_ACTIVE) {
+        (void)vox_stop(vox);
+    }
 
     if (pipe(pipe_stdin) < 0) {
         goto error_pipe_stdin;
@@ -203,7 +205,11 @@ void xas_vox_destroy(xas_vox *vox) {
 }
 
 int xas_vox_stop(xas_vox *vox) {
-    return vox_stop(vox);
+    if (vox->flags & XAS_VOX_ACTIVE) {
+        return vox_stop(vox);
+    }
+
+    return 0;
 }
 
 int xas_vox_active(xas_vox *vox) {
@@ -241,7 +247,7 @@ error_riff_open_fd:
 }
 
 int xas_vox_vsayf(xas_vox *vox, const char *format, va_list args) {
-    if (vox_start(vox) < 0) {
+    if (!(vox->flags & XAS_VOX_ACTIVE) && vox_start(vox) < 0) {
         goto error_vox_start;
     }