gstreamer/sys/v4l2
Nicolas Dufresne b12b8b0b22 v4l2src: Try to avoid TRY_FMT when camera is streaming
Some camera firmware crash is TRY_FMT is called during streaming. As a
side effect. This try and detect that the same format as currently
running is about to be tried, and skip renegotiation.

https://bugzilla.gnome.org/show_bug.cgi?id=796789
2018-07-11 19:05:00 -04:00
..
ext v4l2: Update external files with latest 2017-07-26 20:36:15 -04:00
gstv4l2.c v4l2videoenc: Turn gst_v4l2_is_video_enc into a helper 2017-08-02 09:36:08 -04:00
gstv4l2allocator.c v4l2allocator: Add support for data_offset 2017-11-03 15:47:11 -04:00
gstv4l2allocator.h v4l2: Add run-time environment to enable libv4l2 2017-07-24 14:19:02 -04:00
gstv4l2bufferpool.c v4l2bufferpool: Drop truncated frames 2018-06-07 15:26:32 -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: Try to avoid TRY_FMT when camera is streaming 2018-07-11 19:05:00 -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: Update option names to omit disable_ and with- prefixes 2018-05-05 20:31:01 +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-util: Introduce GstV4l2Error 2016-06-07 17:02:34 -04:00
v4l2_calls.c v4l2: rely on gst_v4l2_dup() to set no_initial_format and keep_aspect 2018-04-26 15:36:16 -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/