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-rw-r--r--DOCS/tech/slave.txt5
1 files changed, 3 insertions, 2 deletions
diff --git a/DOCS/tech/slave.txt b/DOCS/tech/slave.txt
index 84b5682148..09a96e83d5 100644
--- a/DOCS/tech/slave.txt
+++ b/DOCS/tech/slave.txt
@@ -91,8 +91,9 @@ use_master
mute
Mute/unmute sound output.
-switch_audio (MPEG and Matroska only)
- Cycle through the available audio tracks.
+switch_audio [<value>] (MPEG and Matroska only)
+ Switch to the audio track with the id <value>. Cycle through the
+ available tracks if <value> is omitted or negative.
[contrast|gamma|brightness|hue|saturation] <-100 - 100> [<abs>]
Set/adjust video parameters.