@@ -166,6 +166,7 @@ static int show_status;

 static int av_sync_type = AV_SYNC_AUDIO_MASTER;

 static int64_t start_time = AV_NOPTS_VALUE;

 static int debug = 0;

+static int step = 0;

 /* current context */

 static int is_full_screen;

@@ -919,6 +920,9 @@ static int video_thread(void *arg)

             }

         }

         av_free_packet(pkt);

+        if (step) 

+            if (cur_stream)

+                stream_pause(cur_stream);

     }

  the_end:

     av_free(frame);

@@ -1584,6 +1588,17 @@ void toggle_pause(void)

 {

     if (cur_stream)

         stream_pause(cur_stream);

+    step = 0;

+}

+

+void step_to_next_frame(void)

+{

+    if (cur_stream) {

+        if (cur_stream->paused)

+            cur_stream->paused=0;

+        cur_stream->video_current_pts = get_video_clock(cur_stream);

+    }

+    step = 1;

 }

 void do_exit(void)

@@ -1627,6 +1642,9 @@ void event_loop(void)

             case SDLK_SPACE:

                 toggle_pause();

                 break;

+            case SDLK_s: //S: Step to next frame

+                step_to_next_frame();

+                break;

             case SDLK_a:

                 if (cur_stream) 

                     stream_cycle_channel(cur_stream, CODEC_TYPE_AUDIO);