1 files changed, 2 insertions, 0 deletions
diff --git a/avconv.h b/avconv.h
index 03e851d1c7..cb089e41f1 100644
--- a/avconv.h
+++ b/avconv.h
@@ -355,6 +355,8 @@ 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;
     const AVBitStreamFilter **bitstream_filters;