ffmpeg: add last_mux_dts_plus_duration

Fixes 1 frame error in the duration and derived values,
introduced by not using AVStream.pts in the previous commit

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

1 files changed, 1 insertions, 0 deletions

diff --git a/ffmpeg.h b/ffmpeg.h
index 41d666340d..01b983d9bf 100644
--- a/ffmpeg.h
+++ b/ffmpeg.h
@@ -378,6 +378,7 @@ typedef struct OutputStream {
     int64_t first_pts;
     /* dts of the last packet sent to the muxer */
     int64_t last_mux_dts;
+    int64_t last_mux_dts_plus_duration;
     AVBitStreamFilterContext *bitstream_filters;
     AVCodec *enc;
     int64_t max_frames;