diff --git a/ffmpeg.c b/ffmpeg.c
index 4a9cff7f6c..80f4fe4beb 100644
--- a/ffmpeg.c
+++ b/ffmpeg.c
@@ -259,7 +259,6 @@ typedef struct InputFile {
     AVFormatContext *ctx;
     int eof_reached;      /* true if eof reached */
     int ist_index;        /* index of first stream in input_streams */
-    int buffer_size;      /* current total buffer size */
     int64_t ts_offset;
     int nb_streams;       /* number of stream that ffmpeg is aware of; may be different
                              from ctx.nb_streams if new streams appear during av_read_frame() */