[FFmpeg-cvslog] dshow: alert as to ramifications of switching crossbar routing

rogerdpack git at videolan.org
Mon Jan 26 14:59:59 CET 2015


ffmpeg | branch: master | rogerdpack <rogerpack2005 at gmail.com> | Mon Jan 26 01:08:04 2015 -0700| [ce1bbb08f127ecb724c2c62791cad70c30dd270b] | committer: rogerdpack

dshow: alert as to ramifications of switching crossbar routing

Signed-off-by: rogerdpack <rogerpack2005 at gmail.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=ce1bbb08f127ecb724c2c62791cad70c30dd270b
---

 doc/indevs.texi |   15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/doc/indevs.texi b/doc/indevs.texi
index c3d0827..a35c7a6 100644
--- a/doc/indevs.texi
+++ b/doc/indevs.texi
@@ -229,19 +229,26 @@ Select audio capture pin to use by name or alternative name.
 @item crossbar_video_input_pin_number
 Select video input pin number for crossbar device. This will be
 routed to the crossbar device's Video Decoder output pin.
+Note that changing this value can affect future invocations
+(sets a new default) until system reboot occurs.
 
 @item crossbar_audio_input_pin_number
 Select audio input pin number for crossbar device. This will be
 routed to the crossbar device's Audio Decoder output pin.
+Note that changing this value can affect future invocations
+(sets a new default) until system reboot occurs.
 
 @item show_video_device_dialog
 If set to @option{true}, before capture starts, popup a display dialog
 to the end user, allowing them to change video filter properties
 and configurations manually.
-Note that for crossbar devices, this may be needed at times to toggle
-between PAL and NTSC input frame rates and sizes, etc.  Possibly
-enabling different scan rates/frame rates and avoiding green bars at
-the bottom, etc.
+Note that for crossbar devices, adjusting values in this dialog
+may be needed at times to toggle between PAL (25 fps) and NTSC (29.97)
+input frame rates, sizes, interlacing, etc.  Changing these values can
+enable different scan rates/frame rates and avoiding green bars at
+the bottom, flickering scan lines, etc.
+Note that with some devices, changing these properties can also affect future
+invocations (sets new defaults) until system reboot occurs.
 
 @item show_audio_device_dialog
 If set to @option{true}, before capture starts, popup a display dialog



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