avcodec/alsdec: Fix integer overflow with buffer number

[ffmpeg] / doc / indevs.texi

diff --git a/doc/indevs.texi b/doc/indevs.texi
index af3173217f8e481537d97648bd5e6202e80b5fb1..89ba4fb406beec802fbd3834f24080b354a4813d 100644 (file)
--- a/doc/indevs.texi
+++ b/doc/indevs.texi
@@ -910,6 +910,14 @@ Capture from CRTC ID 42 at 60fps, map the result to VAAPI, convert to NV12 and e
 ffmpeg -crtc_id 42 -framerate 60 -f kmsgrab -i - -vf 'hwmap=derive_device=vaapi,scale_vaapi=w=1920:h=1080:format=nv12' -c:v h264_vaapi output.mp4
 @end example
 
+@item
+To capture only part of a plane the output can be cropped - this can be used to capture
+a single window, as long as it has a known absolute position and size.  For example, to
+capture and encode the middle quarter of a 1920x1080 plane:
+@example
+ffmpeg -f kmsgrab -i - -vf 'hwmap=derive_device=vaapi,crop=960:540:480:270,scale_vaapi=960:540:nv12' -c:v h264_vaapi output.mp4
+@end example
+
 @end itemize
 
 @section lavfi
@@ -1065,71 +1073,6 @@ Set the video size given as a string such as @code{640x480} or @code{hd720}.
 Default is @code{qvga}.
 @end table
 
-@section libndi_newtek
-
-The libndi_newtek input device provides capture capabilities for using NDI (Network
-Device Interface, standard created by NewTek).
-
-Input filename is a NDI source name that could be found by sending -find_sources 1
-to command line - it has no specific syntax but human-readable formatted.
-
-To enable this input device, you need the NDI SDK and you
-need to configure with the appropriate @code{--extra-cflags}
-and @code{--extra-ldflags}.
-
-@subsection Options
-
-@table @option
-
-@item find_sources
-If set to @option{true}, print a list of found/available NDI sources and exit.
-Defaults to @option{false}.
-
-@item wait_sources
-Override time to wait until the number of online sources have changed.
-Defaults to @option{0.5}.
-
-@item allow_video_fields
-When this flag is @option{false}, all video that you receive will be progressive.
-Defaults to @option{true}.
-
-@item extra_ips
-If is set to list of comma separated ip addresses, scan for sources not only
-using mDNS but also use unicast ip addresses specified by this list.
-
-@end table
-
-@subsection Examples
-
-@itemize
-
-@item
-List input devices:
-@example
-ffmpeg -f libndi_newtek -find_sources 1 -i dummy
-@end example
-
-@item
-List local and remote input devices:
-@example
-ffmpeg -f libndi_newtek -extra_ips "192.168.10.10" -find_sources 1 -i dummy
-@end example
-
-@item
-Restream to NDI:
-@example
-ffmpeg -f libndi_newtek -i "DEV-5.INTERNAL.M1STEREO.TV (NDI_SOURCE_NAME_1)" -f libndi_newtek -y NDI_SOURCE_NAME_2
-@end example
-
-@item
-Restream remote NDI to local NDI:
-@example
-ffmpeg -f libndi_newtek -extra_ips "192.168.10.10" -i "DEV-5.REMOTE.M1STEREO.TV (NDI_SOURCE_NAME_1)" -f libndi_newtek -y NDI_SOURCE_NAME_2
-@end example
-
-
-@end itemize
-
 @section openal
 
 The OpenAL input device provides audio capture on all systems with a