gstreamer/sys/v4l2
Iñigo Huguet 3f360e8f15 v4l2src: fix first input used is always used next times
The input from an v4l2 device that was used the first time was
remembered for next times, and set again always the pipeline is
set to READY state. This was making that users wasn't able to
select a different input without having to create a new pipeline.

This patch makes that v4l2src element forget previous used input
when going to NULL state, so it will check again for the current
selected input when going again to READY state. Users can change
to NULL state, select a new input with a VIDIOC_S_INPUT ioctl
and change to PLAYING again.

https://bugzilla.gnome.org/show_bug.cgi?id=796908
2018-08-02 08:00:44 -04:00
..
ext v4l2: Update external files with latest 2017-07-26 20:36:15 -04:00
gstv4l2.c v4l2: Add a macro to check for M2M 2018-07-13 22:58:57 -04:00
gstv4l2allocator.c v4l2allocator: Fix userptr importation 2018-07-13 22:58:35 -04:00
gstv4l2allocator.h v4l2: Add run-time environment to enable libv4l2 2017-07-24 14:19:02 -04:00
gstv4l2bufferpool.c v4l2bufferpool: Validate that capture buffers were queued 2018-07-13 23:13:44 -04:00
gstv4l2bufferpool.h v4l2bufferpool: Don't stop streaming when pool is flushing 2017-09-19 17:33:35 -04:00
gstv4l2colorbalance.c Update Edgard Lima's email 2017-02-27 00:34:19 +00:00
gstv4l2colorbalance.h v4l2: Merge v4l2_calls.h into gstv4l2object.h 2017-07-17 20:48:28 -04:00
gstv4l2deviceprovider.c v4l2deviceprovider: Don't do slow probes 2017-12-22 10:30:49 -05:00
gstv4l2deviceprovider.h pulse, v4l2: add missing G_END_DECLS in some places 2014-10-28 21:32:06 +00:00
gstv4l2h263enc.c v4l2videoenc: Turn gst_v4l2_is_video_enc into a helper 2017-08-02 09:36:08 -04:00
gstv4l2h263enc.h v4l2: Remove spurious CATEGORY_EXTERN 2017-08-02 12:28:38 -04:00
gstv4l2h264enc.c v4l2videoenc: Move the profile/level negotation in the base class 2017-08-02 11:28:23 -04:00
gstv4l2h264enc.h v4l2: Remove spurious CATEGORY_EXTERN 2017-08-02 12:28:38 -04:00
gstv4l2mpeg4enc.c v4l2videoenc: Move the profile/level negotation in the base class 2017-08-02 11:28:23 -04:00
gstv4l2mpeg4enc.h v4l2: Remove spurious CATEGORY_EXTERN 2017-08-02 12:28:38 -04:00
gstv4l2object.c v4l2src: fix first input used is always used next times 2018-08-02 08:00:44 -04:00
gstv4l2object.h v4l2src: Try to avoid TRY_FMT when camera is streaming 2018-07-11 19:05:00 -04:00
gstv4l2radio.c v4l2object: Use a debug object for tracing 2017-12-13 14:42:25 -05:00
gstv4l2radio.h Fix FSF address 2012-11-04 00:07:18 +00:00
gstv4l2sink.c v4l2object: Use a debug object for tracing 2017-12-13 14:42:25 -05:00
gstv4l2sink.h v4l2: Remove spurious CATEGORY_EXTERN 2017-08-02 12:28:38 -04:00
gstv4l2src.c v4l2src: Try to avoid TRY_FMT when camera is streaming 2018-07-11 19:05:00 -04:00
gstv4l2src.h v4l2: Remove spurious CATEGORY_EXTERN 2017-08-02 12:28:38 -04:00
gstv4l2transform.c v4l2transform: Implement stable element name 2018-07-01 15:45:53 -04:00
gstv4l2transform.h v4l2: Remove spurious CATEGORY_EXTERN 2017-08-02 12:28:38 -04:00
gstv4l2tuner.c v4l2: Merge v4l2_calls.h into gstv4l2object.h 2017-07-17 20:48:28 -04:00
gstv4l2tuner.h Update Edgard Lima's email 2017-02-27 00:34:19 +00:00
gstv4l2videodec.c v4l2videodec: Protect double calls to set_format() 2018-07-09 14:01:00 -04:00
gstv4l2videodec.h v4l2: Remove spurious CATEGORY_EXTERN 2017-08-02 12:28:38 -04:00
gstv4l2videoenc.c v4l2videoenc: Only renegotiate with upstream 2018-06-29 10:39:04 -04:00
gstv4l2videoenc.h v4l2: Remove spurious CATEGORY_EXTERN 2017-08-02 12:28:38 -04:00
gstv4l2vidorient.c v4l2: Merge v4l2_calls.h into gstv4l2object.h 2017-07-17 20:48:28 -04:00
gstv4l2vidorient.h Update Edgard Lima's email 2017-02-27 00:34:19 +00:00
gstv4l2vp8enc.c v4l2videoenc: Move the profile/level negotation in the base class 2017-08-02 11:28:23 -04:00
gstv4l2vp8enc.h v4l2: Remove spurious CATEGORY_EXTERN 2017-08-02 12:28:38 -04:00
gstv4l2vp9enc.c v4l2videoenc: Move the profile/level negotation in the base class 2017-08-02 11:28:23 -04:00
gstv4l2vp9enc.h v4l2: Remove spurious CATEGORY_EXTERN 2017-08-02 12:28:38 -04:00
Makefile.am v4l2: Add VP8/9 encoder support 2017-08-01 16:01:11 -04:00
meson.build meson: Fix missing variable in v4l2 build 2018-08-01 01:11:05 +05:30
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: consistently check #ifdef HAVE_GUDEV instead of #if 2016-08-18 20:20:20 +01:00
v4l2-utils.h v4l2: Add a macro to check for M2M 2018-07-13 22:58:57 -04:00
v4l2_calls.c v4l2: Add a macro to check for M2M 2018-07-13 22:58:57 -04:00

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/