gstreamer/sys/v4l2
Vincent Penquerc'h 639abf01f9 v4l2: take care not to change the current format where appropriate
Some drivers are buggy are will change the current format when
processing VIDIOC_TRY_FMT. Save and restore the current format
to ensure the format is kept unchanged.

https://bugzilla.gnome.org/show_bug.cgi?id=649067
2011-08-09 09:53:33 +02:00
..
.gitignore add cvsignores 2003-09-11 19:17:02 +00:00
gstv4l2.c v4l2: new v4l2radio element to control analog radio devices 2011-03-27 20:29:43 +01:00
gstv4l2bufferpool.c v4l2: define V4L2_FIELD_INTERLACED_{TB,BT} if not available in header 2011-01-12 22:41:17 +00:00
gstv4l2bufferpool.h v4l2sink: Add support for blocking dequeue. 2010-12-29 11:46:40 -06:00
gstv4l2colorbalance.c sys/v4l2/Makefile.am: Fix makefile, list libs in stack order. 2006-09-26 13:18:06 +00:00
gstv4l2colorbalance.h Add -Wmissing-declarations -Wmissing-prototypes warning flags 2010-03-17 18:23:28 +01:00
gstv4l2object.c v4l2: take care not to change the current format where appropriate 2011-08-09 09:53:33 +02:00
gstv4l2object.h v4l2: add norm property 2011-05-24 10:47:26 +02:00
gstv4l2radio.c v4l2radio: Free videodev string before replacing it 2011-04-14 13:38:30 +02:00
gstv4l2radio.h docs: fix docuemntation warnings (and reindent) 2011-04-05 12:06:55 +03:00
gstv4l2sink.c v4l2: add norm property 2011-05-24 10:47:26 +02:00
gstv4l2sink.h v4l2sink: add navigation support 2010-12-29 11:46:42 -06:00
gstv4l2src.c v4l2src: Address unused but set variable 2011-04-16 13:15:03 +01:00
gstv4l2src.h docs: fix docuemntation warnings (and reindent) 2011-04-05 12:06:55 +03:00
gstv4l2tuner.c v4l2: add norm property 2011-05-24 10:47:26 +02:00
gstv4l2tuner.h v4l2: add norm property 2011-05-24 10:47:26 +02:00
gstv4l2vidorient.c sys/v4l2/: Fix compilation with newer GIT kernels that deprecated 2008-06-09 08:42:49 +00:00
gstv4l2vidorient.h Add -Wmissing-declarations -Wmissing-prototypes warning flags 2010-03-17 18:23:28 +01:00
gstv4l2xoverlay.c docs: fix docuemntation warnings (and reindent) 2011-04-05 12:06:55 +03:00
gstv4l2xoverlay.h v4l2sink: add navigation support 2010-12-29 11:46:42 -06:00
Makefile.am v4l2: new v4l2radio element to control analog radio devices 2011-03-27 20:29:43 +01:00
README Fix level for multi-channel case. 2007-02-22 14:35:28 +00:00
v4l2_calls.c v4l2: add norm property 2011-05-24 10:47:26 +02:00
v4l2_calls.h v4l2: remove unnecessary linux/videodev.h include 2011-03-03 17:37:19 +00:00
v4l2src_calls.c v4l2src: Use fraction compare util function. 2011-08-07 16:41:53 +02:00
v4l2src_calls.h v4l2: add interlaced support 2010-12-29 11:46:42 -06:00

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 application 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://linux.bytesex.org/v4l2/.
          http://v4l2spec.bytesex.org/
          /usr/include/linux/videodev2.h or

Kernel patches available from
          http://dl.bytesex.org/patches/.

Articles:
          http://lwn.net/Articles/203924/