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Audio delay in seconds (positive or negative float value). Negative values
delay the audio, and positive values delay the video.
+``--deinterlace=<yes|no|auto>``
+ Enable or disable interlacing (default: auto, which usually means no).
+ Interlaced video shows ugly comb-like artifacts, which are visible on
+ fast movement. Enabling this typically inserts the yadif video filter in
+ order to deinterlace the video, or lets the video output apply deinterlacing
+ if supported.
+
+ This behaves exactly like the ``deinterlace`` input property (usually
+ mapped to ``Shift+D``).
+
+ ``auto`` is a technicality. Strictly speaking, the default for this option
+ is deinterlacing disabled, but the ``auto`` case is needed if ``yadif`` was
+ added to the filter chain manually with ``--vf``. Then the core shouldn't
+ disable deinterlacing just because the ``--deinterlace`` was not set.
+
``--demuxer=<[+]name>``
Force demuxer type. Use a '+' before the name to force it; this will skip
some checks. Give the demuxer name as printed by ``--demuxer=help``.