ffmpeg: last frame duplication heuristic

This improves the last frames duration with CFR and when the input durations
are inaccurate or missing

Fixes Ticket4119

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

1 files changed, 1 insertions, 0 deletions

diff --git a/ffmpeg.h b/ffmpeg.h
index 7c0c22c..9050202 100644
--- a/ffmpeg.h
+++ b/ffmpeg.h
@@ -394,6 +394,7 @@ typedef struct OutputStream {
     AVFrame *filtered_frame;
     AVFrame *last_frame;
     int last_droped;
+    int last_nb0_frames[3];
 
     /* video only */
     AVRational frame_rate;