1 files changed, 2 insertions, 0 deletions
diff --git a/ffmpeg.h b/ffmpeg.h
index 458bb8a3dc..ca35ccc260 100644
--- a/ffmpeg.h
+++ b/ffmpeg.h
@@ -446,6 +446,8 @@ typedef struct OutputStream {
     int64_t first_pts;
     /* dts of the last packet sent to the muxer */
     int64_t last_mux_dts;
+    // the timebase of the packets sent to the muxer
+    AVRational mux_timebase;
 
     int                    nb_bitstream_filters;
     uint8_t                  *bsf_extradata_updated;