this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an el...

Original commit message from CVS:
this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an element, a src and a sink, but there won't be separate encoding plugins (like v4lmjpegsrc) - all functionality is (thanks to video4linux2) integrated in one plugin: v4l2src. v4l2sink is still to be done, that'll come later.

1 files changed, 24 insertions, 0 deletions

diff --git a/sys/v4l2/README b/sys/v4l2/README
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+v4l2 plugins
+============
+
+The idea is a bit the same as the idea for the v4l1 plugins. We want
+one generic v4l2element, and a few child objects (probably only two:
+v4l2src and v4l2sink):
+
+                /-------- v4l2src
+v4l2element ---=
+                \-------- v4l2sink
+
+Both v4l2src and v4l2sink have a uncompressed and a compressed
+recording-/playback-mode. Since this is all part of v4l2, the 'client'
+of these elements, i.e. an applicaiton using v4l2src/v4l2sink, will
+hardly notice this. All capsnego stuff is done inside, and the plugin
+knows which formats are compressed and which are not.
+
+Please note that the v4l1 and the v4l2 plugins are *not* compatible
+concerning properties. Naming has been kept the same where possible,
+but in some cases, properties had to be removed or added to make
+full use of v4l2.
+
+V4L2 API: http://thedirks.org/v4l2/. Kernel patches available from
+          http://bytesex.org/patches/.