From 5c5b62beec017955e07d200539c33cd906134319 Mon Sep 17 00:00:00 2001
From: Marc Beninca <marc-beninca@rwx.work>
Date: Sat, 18 Sep 2021 02:06:06 +0200
Subject: [PATCH] ffmpeg

---
 docs/public/ffmpeg/snippets.rst | 76 ++++++++++++++++++++++++++++++++-
 1 file changed, 74 insertions(+), 2 deletions(-)

diff --git a/docs/public/ffmpeg/snippets.rst b/docs/public/ffmpeg/snippets.rst
index d94ff86..14c4e28 100644
--- a/docs/public/ffmpeg/snippets.rst
+++ b/docs/public/ffmpeg/snippets.rst
@@ -5,6 +5,78 @@ Snippets
 Change container
 ================
 
-.. code:: bash
+.. code:: shell
 
-  ffmpeg -i input.avi output.mkv
+ ffmpeg \
+ -i input.avi \
+ -y output.mkv
+
+Record video device
+===================
+
+List formats
+------------
+
+.. code:: shell
+
+ ffmpeg \
+ -f v4l2 -list_formats all \
+ -i /dev/video0
+
+Acquire fastly
+--------------
+
+.. code:: shell
+
+ ffmpeg \
+ -f v4l2 -use_wallclock_as_timestamps true \
+ -video_size 1280x720 -framerate 60 \
+ -input_format bgr24 \
+ -i /dev/video0 \
+ -vf vflip \
+ -codec:v libx264 -preset ultrafast -qp 0 \
+ -y ultrafast.mkv
+
+Cut and shrink
+--------------
+
+.. code:: shell
+
+ ffmpeg -i ultrafast.mkv \
+ -ss 00:00:01.000 -to 00:00:02.000 \
+ -codec:v libx264 -preset veryslow -qp 0 \
+ -y uf.mkv
+
+Compress for web
+----------------
+
+.. code:: shell
+
+ ffmpeg -i uf.mkv \
+ -codec:v libx264 -preset veryslow -qp 23 \
+ -movflags +faststart -pix_fmt yuv420p \
+ -y uf.23.mkv
+
+Cut file
+========
+
+.. code:: shell
+
+ ffmpeg \
+ -i input.mkv \
+ -ss 00:00:01.000 \
+ -to 00:00:02.000 \
+ -codec copy \
+ -y output.mkv
+
+Closest I frames
+----------------
+
+.. code:: shell
+
+ ffmpeg \
+ -ss 00:00:01.000 \
+ -i input.mkv \
+ -to 00:00:02.000 \
+ -codec copy \
+ -y output.mkv