diff --git a/rtfd/public/ffmpeg/snippets.rst b/rtfd/public/ffmpeg/snippets.rst
index 13656c7..745e417 100644
--- a/rtfd/public/ffmpeg/snippets.rst
+++ b/rtfd/public/ffmpeg/snippets.rst
@@ -33,7 +33,7 @@ Acquire fastly
  -video_size 1920x1080 -framerate 60 \
  -input_format yuyv422 \
  -i /dev/video0 \
- -codec:v libx264 -preset ultrafast -qp 0 \
+ -codec:v libx264 -preset ultrafast -crf 0 \
  -y ultrafast.mkv
 
 .. code:: shell
@@ -44,7 +44,7 @@ Acquire fastly
  -input_format bgr24 \
  -i /dev/video0 \
  -vf vflip \
- -codec:v libx264 -preset ultrafast -qp 0 \
+ -codec:v libx264 -preset ultrafast -crf 0 \
  -y ultrafast.mkv
 
 Windows desktop:
@@ -60,7 +60,7 @@ Cut and shrink
 
  ffmpeg -i ultrafast.mkv \
  -ss 00:00:01.000 -to 00:00:02.000 \
- -codec:v libx264 -preset veryslow -qp 0 \
+ -codec:v libx264 -preset veryslow -crf 0 \
  -y uf.mkv
 
 Compress for web
@@ -69,14 +69,14 @@ Compress for web
 .. code:: shell
 
  ffmpeg -i uf.mkv \
- -codec:v libx264 -preset veryslow -qp 23 \
+ -codec:v libx264 -preset veryslow -crf 23 \
  -movflags +faststart -pix_fmt yuv420p \
  -y uf.23.mp4
 
 .. code:: shell
 
  ffmpeg -i uf.mkv \
- -codec:v libx265 -preset veryslow -qp 28 \
+ -codec:v libx265 -preset veryslow -crf 28 \
  -movflags +faststart -pix_fmt yuv420p \
  -y uf.28.mp4