ffmpeg: document the unit for the -fs option parameter

1 files changed, 1 insertions, 1 deletions

diff --git a/ffmpeg.c b/ffmpeg.c
index ac667af3b3..9b6c19d9f1 100644
--- a/ffmpeg.c
+++ b/ffmpeg.c
@@ -305,7 +305,7 @@ typedef struct OutputFile {
     int ost_index;       /* index of the first stream in output_streams */
     int64_t recording_time; /* desired length of the resulting file in microseconds */
     int64_t start_time;     /* start time in microseconds */
-    uint64_t limit_filesize;
+    uint64_t limit_filesize; /* filesize limit expressed in bytes */
 } OutputFile;
 
 static InputStream *input_streams   = NULL;