[FFmpeg-devel] [PATCH] ffmpeg: show fps more accurately when it is small.

Nicolas George nicolas.george at normalesup.org
Wed Mar 7 23:39:25 CET 2012


Signed-off-by: Nicolas George <nicolas.george at normalesup.org>
---
 ffmpeg.c |    7 ++++---
 1 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/ffmpeg.c b/ffmpeg.c
index 5499d5d..609d112 100644
--- a/ffmpeg.c
+++ b/ffmpeg.c
@@ -1715,11 +1715,12 @@ static void print_report(OutputFile *output_files,
             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
         }
         if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
-            float t = (cur_time-timer_start) / 1000000.0;
+            float fps, t = (cur_time-timer_start) / 1000000.0;
 
             frame_number = ost->frame_number;
-            snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
-                     frame_number, (t > 1) ? (int)(frame_number / t + 0.5) : 0, q);
+            fps = t > 1 ? frame_number / t : 0;
+            snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3.*f q=%3.1f ",
+                     frame_number, fps < 9.95, fps, q);
             if (is_last_report)
                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
             if (qp_hist) {
-- 
1.7.9.1



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