gstreamer/sys/v4l2
Michael Olbrich 1e777ede92 v4l2: try to allocate new buffers with VIDIOC_CREATE_BUFS if needed
If max_buffers is 0 then an arbitrary number of buffers (currently 4) is
allocated. If this is not enough v4l2src starts copying buffers.
With this patch VIDIOC_CREATE_BUFS is used to allocate a new buffer. If
this fails v4l2src falls back to copying buffers.

https://bugzilla.gnome.org/show_bug.cgi?id=699447
2013-05-03 11:18:04 +02:00
..
.gitignore v4l2src: Adding a pre-set-format signal 2012-04-19 09:45:49 +02:00
gstv4l2-marshal.list v4l2src: Adding a pre-set-format signal 2012-04-19 09:45:49 +02:00
gstv4l2.c Fix FSF address 2012-11-04 00:07:18 +00:00
gstv4l2bufferpool.c v4l2: try to allocate new buffers with VIDIOC_CREATE_BUFS if needed 2013-05-03 11:18:04 +02:00
gstv4l2bufferpool.h v4l2: try to allocate new buffers with VIDIOC_CREATE_BUFS if needed 2013-05-03 11:18:04 +02:00
gstv4l2colorbalance.c Fix FSF address 2012-11-04 00:07:18 +00:00
gstv4l2colorbalance.h Fix FSF address 2012-11-04 00:07:18 +00:00
gstv4l2object.c v4l2: handle return value -ENOTTY for unimplemented VIDIOC_G_PARM 2013-05-01 15:34:50 +02:00
gstv4l2object.h v4l2: Add support of dmabuf 2013-02-19 12:57:07 +01:00
gstv4l2radio.c Fix FSF address 2012-11-04 00:07:18 +00:00
gstv4l2radio.h Fix FSF address 2012-11-04 00:07:18 +00:00
gstv4l2sink.c Fix FSF address 2012-11-04 00:07:18 +00:00
gstv4l2sink.h Fix FSF address 2012-11-04 00:07:18 +00:00
gstv4l2src.c v4l2src: Disable renegotiation in the negotiate method 2013-04-17 17:04:11 -04:00
gstv4l2src.h Fix FSF address 2012-11-04 00:07:18 +00:00
gstv4l2tuner.c Fix FSF address 2012-11-04 00:07:18 +00:00
gstv4l2tuner.h Fix FSF address 2012-11-04 00:07:18 +00:00
gstv4l2videooverlay.c Fix FSF address 2012-11-04 00:07:18 +00:00
gstv4l2videooverlay.h Fix FSF address 2012-11-04 00:07:18 +00:00
gstv4l2vidorient.c Fix FSF address 2012-11-04 00:07:18 +00:00
gstv4l2vidorient.h Fix FSF address 2012-11-04 00:07:18 +00:00
Makefile.am gst: Add better support for static plugins 2013-04-15 15:54:11 +02:00
README Fix level for multi-channel case. 2007-02-22 14:35:28 +00:00
tuner-marshal.list Update everything for the removal of the interface library and mixer/tuner interfaces 2012-04-13 13:15:11 +02:00
tuner.c Fix FSF address 2012-11-04 00:07:18 +00:00
tuner.h Fix FSF address 2012-11-04 00:07:18 +00:00
tunerchannel.c Fix FSF address 2012-11-04 00:07:18 +00:00
tunerchannel.h Fix FSF address 2012-11-04 00:07:18 +00:00
tunernorm.c Fix FSF address 2012-11-04 00:07:18 +00:00
tunernorm.h Fix FSF address 2012-11-04 00:07:18 +00:00
v4l2_calls.c v4l2: also poll for output devices 2013-04-27 09:31:29 +01:00
v4l2_calls.h Fix FSF address 2012-11-04 00:07:18 +00:00

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/