gstreamer/sys/v4l2
Peter Seiderer f160625ea6 v4l2src: device sequence/offset correction in case of renegotiation
The v4l2 device restarts the sequence counter in case of streamoff/streamon,
the GST offset values are supposed to increment strictly monotonic, so
adjust the sequence counter/offset values in case of caps
renegotiation.

https://bugzilla.gnome.org/show_bug.cgi?id=745441
2015-04-02 17:40:20 -04:00
..
ext v4l2: Add types compatiblity for other OS 2014-03-16 17:32:03 +01:00
gstv4l2.c Rename GstDeviceMonitor to GstDeviceProvider 2014-06-26 14:57:36 -04:00
gstv4l2allocator.c v4l2bufferpool: fix import_userptr() in single-planar API when n_planes > 1 2015-02-25 14:25:01 -05:00
gstv4l2allocator.h v4l2allocator: let bufferpool calculate image size when importing userptr 2015-02-25 14:24:49 -05:00
gstv4l2bufferpool.c v4l2: use v4l2 capture device sequence counter 2015-04-02 17:40:19 -04:00
gstv4l2bufferpool.h v4l2: Workaround driver not setting field correctly 2015-03-01 14:03:04 -05:00
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
gstv4l2deviceprovider.c v4l2: fix compiler warnings when compiling with -DG_DISABLE_ASSERT 2014-06-29 17:06:11 +01:00
gstv4l2deviceprovider.h pulse, v4l2: add missing G_END_DECLS in some places 2014-10-28 21:32:06 +00:00
gstv4l2object.c v4l2: Ask the driver about its requirements for min_buffers before initiating buffer pool. 2015-04-02 17:29:19 -04:00
gstv4l2object.h v4l2object: add gst_v4l2_object_try_format 2015-03-13 18:47:55 +00:00
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 v4l2: query crop configuration after each call of S_CROP 2015-02-26 08:38:32 -05:00
gstv4l2sink.h v4l2: De-duplicate caps probing between src and sink 2013-08-19 13:08:18 -04:00
gstv4l2src.c v4l2src: device sequence/offset correction in case of renegotiation 2015-04-02 17:40:20 -04:00
gstv4l2src.h v4l2src: device sequence/offset correction in case of renegotiation 2015-04-02 17:40:20 -04:00
gstv4l2transform.c v4l2: Handle corrupted buffer with empty payload 2014-11-21 11:29:19 -05:00
gstv4l2transform.h v4l2transform: Check if caps have changes before asserting 2014-05-08 15:56:36 -04:00
gstv4l2tuner.c v4l2: Use G_DEFINE_ macros for added thread safety 2013-08-19 12:48:35 -04:00
gstv4l2tuner.h pulse, v4l2: add missing G_END_DECLS in some places 2014-10-28 21:32:06 +00:00
gstv4l2videodec.c v4l2videodec: Proxy getcaps 2015-01-13 16:55:43 -05:00
gstv4l2videodec.h v4l2: Add initial support for alignment and cropping 2014-05-08 15:56:35 -04:00
gstv4l2vidorient.c v4l2: Use a copy of videodev2.h header 2014-03-15 13:54:47 +01:00
gstv4l2vidorient.h Fix FSF address 2012-11-04 00:07:18 +00:00
Makefile.am Rename GstDeviceMonitor to GstDeviceProvider 2014-06-26 14:57:36 -04:00
README Fix level for multi-channel case. 2007-02-22 14:35:28 +00:00
tuner.c v4l2: Use G_DEFINE_ macros for added thread safety 2013-08-19 12:48:35 -04:00
tuner.h v4l2: remove unused enumtypes and use generic marshaller 2013-08-04 11:03:49 +01:00
tunerchannel.c v4l2: Use G_DEFINE_ macros for added thread safety 2013-08-19 12:48:35 -04:00
tunerchannel.h Fix FSF address 2012-11-04 00:07:18 +00:00
tunernorm.c v4l2: Use G_DEFINE_ macros for added thread safety 2013-08-19 12:48:35 -04:00
tunernorm.h Fix FSF address 2012-11-04 00:07:18 +00:00
v4l2-utils.c v4l2: Add a common device enumerator 2014-05-03 23:11:35 -04:00
v4l2-utils.h v4l2: Add a common device enumerator 2014-05-03 23:11:35 -04:00
v4l2_calls.c Revert "v4l2: fraction is reversed" 2015-02-18 19:18:00 +00:00
v4l2_calls.h v4l2: Remove last include to linux/videodev2.h 2014-11-30 17:55:19 -05:00

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/