Implement new zms parameters frames= which is the # of frames to send when in streaming mode. The idea is to replicate single mode, but allowing for other intermediate images, like Waiting for Connection etc. type=single should only ever send 1 single image.

src/zm_monitorstream.cpp

@@ -846,6 +846,9 @@ void MonitorStream::runStream() {
             static_cast<int64>(std::chrono::duration_cast<Microseconds>(ttl).count()));
       break;
     }
+    if (frames_to_send > 0 && frame_count >= frames_to_send) {
+      break;
+    }
   } // end while ! zm_terminate
 
   if (buffered_playback) {

src/zm_stream.h

@@ -139,6 +139,7 @@ protected:
   int last_frame_count; // Used in calculating actual_fps from frame_count - last_frame_count
 
   int frame_mod;
+  int frames_to_send;
 
   TimePoint last_frame_sent;
   SystemTimePoint last_frame_timestamp;
@@ -192,6 +193,7 @@ public:
     frame_count(0),
     last_frame_count(0),
     frame_mod(1),
+    frames_to_send(-1),
     got_command(false),
     temp_img_buffer(nullptr),
     temp_img_buffer_size(0)
@@ -241,6 +243,7 @@ public:
   void setStreamQueue(int p_connkey) {
     connkey = p_connkey;
   }
+  void setFramesToSend(int p_frames_to_send) { frames_to_send = p_frames_to_send; }
   bool sendTextFrame(const char *text);
   virtual void openComms();
   virtual void closeComms();

src/zms.cpp

@@ -60,6 +60,7 @@ int main(int argc, const char *argv[], char **envp) {
   time_t event_time = 0;
   uint64_t event_id = 0;
   unsigned int frame_id = 1;
+  int frames_to_send = -1;
   unsigned int scale = 100;
   unsigned int rate = 100;
   double maxfps = 10.0;
@@ -152,6 +153,8 @@ int main(int argc, const char *argv[], char **envp) {
     } else if ( !strcmp(name, "frame") ) {
       frame_id = strtoull(value, nullptr, 10);
       source = ZMS_EVENT;
+    } else if ( !strcmp(name, "frames") ) {
+      frames_to_send = strtoll(value, nullptr, 10);
     } else if ( !strcmp(name, "scale") ) {
       scale = atoi(value);
     } else if ( !strcmp(name, "rate") ) {
@@ -279,6 +282,7 @@ int main(int argc, const char *argv[], char **envp) {
     stream.setStreamTTL(ttl);
     stream.setStreamQueue(connkey);
     stream.setStreamBuffer(playback_buffer);
+    stream.setFramesToSend(frames_to_send);
     stream.setStreamStart(monitor_id);
     stream.setStreamFrameType(analysis_frames ? StreamBase::FRAME_ANALYSIS: StreamBase::FRAME_NORMAL);