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-rw-r--r--DOCS/man/af.rst7
-rw-r--r--DOCS/man/options.rst3
2 files changed, 9 insertions, 1 deletions
diff --git a/DOCS/man/af.rst b/DOCS/man/af.rst
index aebf76431a..5c2b066a6b 100644
--- a/DOCS/man/af.rst
+++ b/DOCS/man/af.rst
@@ -220,3 +220,10 @@ Available filters are:
broken filters. In practice, these broken filters will either cause slow
A/V desync over time (with some files), or break playback completely if
you seek or start playback from the middle of a file.
+
+``drop``
+ This filter drops or repeats audio frames to adapt to playback speed. It
+ always operates on full audio frames, because it was made to handle SPDIF
+ (compressed audio passthrough). This is used automatically if the
+ ``--video-sync=display-adrop`` option is used. Do not use this filter (or
+ the given option); they are extremely low quality.
diff --git a/DOCS/man/options.rst b/DOCS/man/options.rst
index 370723aadb..4ed5944956 100644
--- a/DOCS/man/options.rst
+++ b/DOCS/man/options.rst
@@ -6403,7 +6403,8 @@ Miscellaneous
video. See ``--video-sync-adrop-size``. This mode will
cause severe audio artifacts if the real monitor
refresh rate is too different from the reported or
- forced rate.
+ forced rate. Sicne mpv 0.33.0, this acts on entire audio
+ frames, instead of single samples.
:display-desync: Sync video to display, and let audio play on its own.
:desync: Sync video according to system clock, and let audio play
on its own.