Add ffmpeg tip

1 files changed, 8 insertions, 0 deletions

diff --git a/ffmpeg.md b/ffmpeg.md
index b53621d..b87ab63 100644
--- a/ffmpeg.md
+++ b/ffmpeg.md
@@ -67,3 +67,11 @@ For the transpose parameter you can pass:
     [in1] ... [ink] filter_name=option1=val1:...:optionn=valn [out1] ... [outm]
 
 * Use `-filter_complex` if more than one input or output stream.
+
+## Video file info
+
+Just running
+
+    ffmpeg -i video.mp4
+
+will fail, but give a bunch of info about the file (including resolution, fps, etc)