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| author | Stefano Sabatini <stefano.sabatini-lala@poste.it> | 2010-01-16 10:43:53 +0000 |
|---|---|---|
| committer | Stefano Sabatini <stefano.sabatini-lala@poste.it> | 2010-01-16 10:43:53 +0000 |
| commit | dd08b83c876275ae4741225a4820997c935b956d (patch) | |
| tree | 6ecfa50d3f7873c16e546f861e76d9fe835c206a /doc/libavfilter.texi | |
| parent | e1bb0364f848978785a956dcb209d025427a5f77 (diff) | |
Implement null video source.
Originally committed as revision 21240 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'doc/libavfilter.texi')
| -rw-r--r-- | doc/libavfilter.texi | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/doc/libavfilter.texi b/doc/libavfilter.texi index 0e473fdfee..28f24bce9f 100644 --- a/doc/libavfilter.texi +++ b/doc/libavfilter.texi @@ -197,4 +197,20 @@ Flip the input video vertically. ./ffmpeg -i in.avi -vfilters "vflip" out.avi @end example +@chapter Available video sources + +Below is a description of the currently available video sources. + +@section nullsrc + +Null video source, never return images. It is mainly useful as a +template and to be employed in analysis / debugging tools. + +It accepts as optional parameter a string of the form +``width:height'', where ``width'' and ``height'' specify the size of +the configured source. + +The default values of ``width'' and ``height'' are respectively 352 +and 288 (corresponding to the CIF size format). + @bye |