On 06/03/15 23:02, Jonas Lindgren wrote:
---
  doc/indevs.texi | 3 +++
  1 file changed, 3 insertions(+)

diff --git a/doc/indevs.texi b/doc/indevs.texi
index e514b63..3042790 100644
--- a/doc/indevs.texi
+++ b/doc/indevs.texi
@@ -271,6 +271,9 @@ supported using @command{-list_formats all} for 
Video4Linux2 devices.
  Some usage examples of the video4linux2 devices with avconv and avplay:

  @example
+# List supported formats for a video4linux2 device.
+avplay -f video4linux2 -list_formats all /dev/video0
+
  # Grab and show the input of a video4linux2 device.
  avplay -f video4linux2 -framerate 30 -video_size hd720 /dev/video0



Looks fine to me.
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