1 files changed, 1 insertions, 0 deletions
diff --git a/libavcodec/ac3.h b/libavcodec/ac3.h
index a7c48ebc23..abe40a5617 100644
--- a/libavcodec/ac3.h
+++ b/libavcodec/ac3.h
@@ -85,6 +85,7 @@ typedef struct {
     uint8_t channel_mode;
     uint8_t lfe_on;
     uint8_t frame_type;
+    int substreamid;                        ///< substream identification
     int center_mix_level;                   ///< Center mix level index
     int surround_mix_level;                 ///< Surround mix level index
     uint16_t channel_map;