avcodec/avcodec: Perform sub_charenc/iconv checks before AVCodec.init()

[ffmpeg] / doc / indevs.texi

diff --git a/doc/indevs.texi b/doc/indevs.texi
index 7748232b26c38adc8225d6a9fa22b60043b7e7ae..b377924c2fc92f3034d25d996854670014ffe0be 100644 (file)
--- a/doc/indevs.texi
+++ b/doc/indevs.texi
@@ -350,8 +350,13 @@ Defaults to @samp{unset}.
 @item timecode_format
 Timecode type to include in the frame and video stream metadata. Must be
 @samp{none}, @samp{rp188vitc}, @samp{rp188vitc2}, @samp{rp188ltc},
-@samp{rp188any}, @samp{vitc}, @samp{vitc2}, or @samp{serial}. Defaults to
-@samp{none} (not included).
+@samp{rp188hfr}, @samp{rp188any}, @samp{vitc}, @samp{vitc2}, or @samp{serial}.
+Defaults to @samp{none} (not included).
+
+In order to properly support 50/60 fps timecodes, the ordering of the queried
+timecode types for @samp{rp188any} is HFR, VITC1, VITC2 and LTC for >30 fps
+content. Note that this is slightly different to the ordering used by the
+DeckLink API, which is HFR, VITC1, LTC, VITC2.
 
 @item video_input
 Sets the video input source. Must be @samp{unset}, @samp{sdi}, @samp{hdmi},
@@ -1503,6 +1508,14 @@ ffmpeg -f x11grab -framerate 25 -video_size cif -i :0.0+10,20 out.mpg
 @subsection Options
 
 @table @option
+@item select_region
+Specify whether to select the grabbing area graphically using the pointer.
+A value of @code{1} prompts the user to select the grabbing area graphically
+by clicking and dragging. A single click with no dragging will select the
+whole screen. A region with zero width or height will also select the whole
+screen. This option overwrites the @var{video_size}, @var{grab_x}, and
+@var{grab_y} options. Default value is @code{0}.
+
 @item draw_mouse
 Specify whether to draw the mouse pointer. A value of @code{0} specifies
 not to draw the pointer. Default value is @code{1}.
@@ -1551,8 +1564,21 @@ With @var{follow_mouse}:
 ffmpeg -f x11grab -follow_mouse centered -show_region 1 -framerate 25 -video_size cif -i :0.0 out.mpg
 @end example
 
+@item window_id
+Grab this window, instead of the whole screen. Default value is 0, which maps to
+the whole screen (root window).
+
+The id of a window can be found using the @command{xwininfo} program, possibly with options -tree and
+-root.
+
+If the window is later enlarged, the new area is not recorded. Video ends when
+the window is closed, unmapped (i.e., iconified) or shrunk beyond the video
+size (which defaults to the initial window size).
+
+This option disables options @option{follow_mouse} and @option{select_region}.
+
 @item video_size
-Set the video frame size. Default is the full desktop.
+Set the video frame size. Default is the full desktop or window.
 
 @item grab_x
 @item grab_y