From 5604fc76b53f044f9cb185565cb1f6806927acb3 Mon Sep 17 00:00:00 2001
From: mrbesen <y.g.2@gmx.de>
Date: Mon, 11 May 2020 13:18:04 +0200
Subject: [PATCH] compensate pause in fps calculation

---
 fftools/ffmpeg.c | 22 ++++++++++++++--------
 1 file changed, 14 insertions(+), 8 deletions(-)

diff --git a/fftools/ffmpeg.c b/fftools/ffmpeg.c
index 104c64e475..5efe59e05c 100644
--- a/fftools/ffmpeg.c
+++ b/fftools/ffmpeg.c
@@ -1730,8 +1730,7 @@ static void print_report(int is_last_report, int64_t timer_start, int64_t cur_ti
         last_time = cur_time;
     }
 
-    t = (cur_time-timer_start) / 1000000.0;
-
+    t = (cur_time - timer_start) / 1000000.0; //time in seconds, the transcode process is running
 
     oc = output_files[0]->ctx;
 
@@ -1758,7 +1757,7 @@ static void print_report(int is_last_report, int64_t timer_start, int64_t cur_ti
             float fps;
 
             frame_number = ost->frame_number;
-            fps = t > 1 ? frame_number / t : 0;
+            fps = t > 0 ? frame_number / t : 0;
             av_bprintf(&buf, "frame=%5d fps=%3.*f q=%3.1f ",
                      frame_number, fps < 9.95, fps, q);
             av_bprintf(&buf_script, "frame=%d\n", frame_number);
@@ -1901,8 +1900,8 @@ static void print_report(int is_last_report, int64_t timer_start, int64_t cur_ti
         struct tm * timeinfo;
         time(&rawtime);
         timeinfo = localtime(&rawtime);
-        time_t time = mktime(timeinfo);
-        time_t timef = time + secs;
+        time_t time = mktime(timeinfo); //current time
+        time_t timef = time + secs;     //time finished
         timeinfo = localtime(&timef);
 
         secs %= 60;
@@ -1912,7 +1911,9 @@ static void print_report(int is_last_report, int64_t timer_start, int64_t cur_ti
         else
             strftime(timebuf, 20, "%T", timeinfo); //time only
 
+        
         av_bprintf(&buf, "Remaining=%"PRId64" ETA=%02d:%02d:%02d finish=%s", remaining_frames, hours, mins, secs, timebuf);
+        
     }
 
     if (print_stats || is_last_report) {
@@ -4808,7 +4809,7 @@ static int transcode(void)
 #endif
 
     while (!received_sigterm) {
-        int64_t cur_time= av_gettime_relative();
+        int64_t cur_time = av_gettime_relative();
 
         /* if 'q' pressed, exits */
         if (stdin_interaction) {
@@ -4816,12 +4817,17 @@ static int transcode(void)
             if (kbinteractionresult < 0)
                 break;
             if(kbinteractionresult == 1) { //pause
-                fprintf(stderr, "Paused\r");
+                fprintf(stderr, "\033[101mPaused\033[0m\r");
+
 
                 //wait for key
                 getchar();
+                int64_t new_cur_time = av_gettime_relative();
+                int64_t paused = new_cur_time - cur_time;
+                cur_time = new_cur_time;
+                timer_start += paused; // shift the transcode start by the time, that was paused -> fix calculation of remaining and fps
 
-                fprintf(stderr, "Unpaused\r");
+                fprintf(stderr, "Unpaused Paused For: %lis     \n", (paused / 1000000));
             }
         }