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gstreamer/subprojects/gst-plugins-good/sys/v4l2
History
Nicolas Dufresne 76c5eb4654 v4l2: Fix use after free of fmtdesc 
The decoder needs to force another enumeration of the format. For
this it was clearing the v4l2object insternal list, leaving a fmtdesc
pointer pointing to freed memory. This patch clears the fmtdesc pointer
that has just been free. It also makes sure the probe function does not
use the cached formats list. The probe function will restore the current
fmtdesc pointer based on the currently configured pixelformat.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4426>
2023-04-14 15:16:06 +00:00
..
ext v4l2: Add NV12_8L128 and NV12_10BE_8L128 2022-03-22 00:41:39 +00:00
gstv4l2.c Replace gst-i18n-*.h with gi18n-lib.h 2022-04-19 18:01:06 +00:00
gstv4l2allocator.c v4l2allocator: Fix invalid imported dmabuf fd 2022-08-24 09:59:14 +00:00
gstv4l2allocator.h Move files from gst-plugins-good into the "subprojects/gst-plugins-good/" subdir 2021-09-24 16:13:50 -03:00
gstv4l2bufferpool.c v4l2: videodec: Prefer acquired caps over anything downstream 2023-04-14 15:16:06 +00:00
gstv4l2bufferpool.h v4l2: Fix SIGSEGV on 'change state' during 'format change' 2022-12-01 12:47:54 +00:00
gstv4l2codec.c Move files from gst-plugins-good into the "subprojects/gst-plugins-good/" subdir 2021-09-24 16:13:50 -03:00
gstv4l2codec.h Move files from gst-plugins-good into the "subprojects/gst-plugins-good/" subdir 2021-09-24 16:13:50 -03:00
gstv4l2colorbalance.c Move files from gst-plugins-good into the "subprojects/gst-plugins-good/" subdir 2021-09-24 16:13:50 -03:00
gstv4l2colorbalance.h Move files from gst-plugins-good into the "subprojects/gst-plugins-good/" subdir 2021-09-24 16:13:50 -03:00
gstv4l2deviceprovider.c Move files from gst-plugins-good into the "subprojects/gst-plugins-good/" subdir 2021-09-24 16:13:50 -03:00
gstv4l2deviceprovider.h Move files from gst-plugins-good into the "subprojects/gst-plugins-good/" subdir 2021-09-24 16:13:50 -03:00
gstv4l2element.c Replace gst-i18n-*.h with gi18n-lib.h 2022-04-19 18:01:06 +00:00
gstv4l2elements.h Move files from gst-plugins-good into the "subprojects/gst-plugins-good/" subdir 2021-09-24 16:13:50 -03:00
gstv4l2fwhtenc.c Replace gst-i18n-*.h with gi18n-lib.h 2022-04-19 18:01:06 +00:00
gstv4l2fwhtenc.h Move files from gst-plugins-good into the "subprojects/gst-plugins-good/" subdir 2021-09-24 16:13:50 -03:00
gstv4l2h263enc.c Replace gst-i18n-*.h with gi18n-lib.h 2022-04-19 18:01:06 +00:00
gstv4l2h263enc.h Move files from gst-plugins-good into the "subprojects/gst-plugins-good/" subdir 2021-09-24 16:13:50 -03:00
gstv4l2h264codec.c Move files from gst-plugins-good into the "subprojects/gst-plugins-good/" subdir 2021-09-24 16:13:50 -03:00
gstv4l2h264codec.h Move files from gst-plugins-good into the "subprojects/gst-plugins-good/" subdir 2021-09-24 16:13:50 -03:00
gstv4l2h264enc.c Replace gst-i18n-*.h with gi18n-lib.h 2022-04-19 18:01:06 +00:00
gstv4l2h264enc.h Move files from gst-plugins-good into the "subprojects/gst-plugins-good/" subdir 2021-09-24 16:13:50 -03:00
gstv4l2h265codec.c Move files from gst-plugins-good into the "subprojects/gst-plugins-good/" subdir 2021-09-24 16:13:50 -03:00
gstv4l2h265codec.h Move files from gst-plugins-good into the "subprojects/gst-plugins-good/" subdir 2021-09-24 16:13:50 -03:00
gstv4l2h265enc.c Replace gst-i18n-*.h with gi18n-lib.h 2022-04-19 18:01:06 +00:00
gstv4l2h265enc.h Move files from gst-plugins-good into the "subprojects/gst-plugins-good/" subdir 2021-09-24 16:13:50 -03:00
gstv4l2jpegenc.c Replace gst-i18n-*.h with gi18n-lib.h 2022-04-19 18:01:06 +00:00
gstv4l2jpegenc.h Move files from gst-plugins-good into the "subprojects/gst-plugins-good/" subdir 2021-09-24 16:13:50 -03:00
gstv4l2mpeg2codec.c Move files from gst-plugins-good into the "subprojects/gst-plugins-good/" subdir 2021-09-24 16:13:50 -03:00
gstv4l2mpeg2codec.h Move files from gst-plugins-good into the "subprojects/gst-plugins-good/" subdir 2021-09-24 16:13:50 -03:00
gstv4l2mpeg4codec.c Move files from gst-plugins-good into the "subprojects/gst-plugins-good/" subdir 2021-09-24 16:13:50 -03:00
gstv4l2mpeg4codec.h Move files from gst-plugins-good into the "subprojects/gst-plugins-good/" subdir 2021-09-24 16:13:50 -03:00
gstv4l2mpeg4enc.c Replace gst-i18n-*.h with gi18n-lib.h 2022-04-19 18:01:06 +00:00
gstv4l2mpeg4enc.h Move files from gst-plugins-good into the "subprojects/gst-plugins-good/" subdir 2021-09-24 16:13:50 -03:00
gstv4l2object.c v4l2object: Add support for YVU420M format 2023-03-31 16:34:29 +01:00
gstv4l2object.h v4l2: Fix SIGSEGV on 'change state' during 'format change' 2022-12-01 12:47:54 +00:00
gstv4l2radio.c Replace gst-i18n-*.h with gi18n-lib.h 2022-04-19 18:01:06 +00:00
gstv4l2radio.h Move files from gst-plugins-good into the "subprojects/gst-plugins-good/" subdir 2021-09-24 16:13:50 -03:00
gstv4l2sink.c v4l2: Fix SIGSEGV on 'change state' during 'format change' 2022-12-01 12:47:54 +00:00
gstv4l2sink.h Move files from gst-plugins-good into the "subprojects/gst-plugins-good/" subdir 2021-09-24 16:13:50 -03:00
gstv4l2src.c v4l2src: Fix crash in renegotiation 2022-12-02 19:25:52 +00:00
gstv4l2src.h v4l2src: Add support for cropping at capture source input 2022-03-11 15:02:08 +00:00
gstv4l2transform.c v4l2: Fix SIGSEGV on 'change state' during 'format change' 2022-12-01 12:47:54 +00:00
gstv4l2transform.h Move files from gst-plugins-good into the "subprojects/gst-plugins-good/" subdir 2021-09-24 16:13:50 -03:00
gstv4l2tuner.c gstv4l2tuner: return NULL if no norm set 2022-02-20 21:38:40 +00:00
gstv4l2tuner.h Move files from gst-plugins-good into the "subprojects/gst-plugins-good/" subdir 2021-09-24 16:13:50 -03:00
gstv4l2videodec.c v4l2: Fix use after free of fmtdesc 2023-04-14 15:16:06 +00:00
gstv4l2videodec.h v4l2videodec : enable resolution change 2022-03-01 00:00:50 +00:00
gstv4l2videoenc.c v4l2: Fix SIGSEGV on 'change state' during 'format change' 2022-12-01 12:47:54 +00:00
gstv4l2videoenc.h Move files from gst-plugins-good into the "subprojects/gst-plugins-good/" subdir 2021-09-24 16:13:50 -03:00
gstv4l2vidorient.c Move files from gst-plugins-good into the "subprojects/gst-plugins-good/" subdir 2021-09-24 16:13:50 -03:00
gstv4l2vidorient.h Move files from gst-plugins-good into the "subprojects/gst-plugins-good/" subdir 2021-09-24 16:13:50 -03:00
gstv4l2vp8codec.c Move files from gst-plugins-good into the "subprojects/gst-plugins-good/" subdir 2021-09-24 16:13:50 -03:00
gstv4l2vp8codec.h Move files from gst-plugins-good into the "subprojects/gst-plugins-good/" subdir 2021-09-24 16:13:50 -03:00
gstv4l2vp8enc.c Replace gst-i18n-*.h with gi18n-lib.h 2022-04-19 18:01:06 +00:00
gstv4l2vp8enc.h Move files from gst-plugins-good into the "subprojects/gst-plugins-good/" subdir 2021-09-24 16:13:50 -03:00
gstv4l2vp9codec.c Move files from gst-plugins-good into the "subprojects/gst-plugins-good/" subdir 2021-09-24 16:13:50 -03:00
gstv4l2vp9codec.h Move files from gst-plugins-good into the "subprojects/gst-plugins-good/" subdir 2021-09-24 16:13:50 -03:00
gstv4l2vp9enc.c Replace gst-i18n-*.h with gi18n-lib.h 2022-04-19 18:01:06 +00:00
gstv4l2vp9enc.h Move files from gst-plugins-good into the "subprojects/gst-plugins-good/" subdir 2021-09-24 16:13:50 -03:00
meson.build meson: Call pkgconfig.generate in the loop where we declare plugins dependencies 2022-09-01 21:17:35 +00:00
README Move files from gst-plugins-good into the "subprojects/gst-plugins-good/" subdir 2021-09-24 16:13:50 -03:00
tuner.c Move files from gst-plugins-good into the "subprojects/gst-plugins-good/" subdir 2021-09-24 16:13:50 -03:00
tuner.h Move files from gst-plugins-good into the "subprojects/gst-plugins-good/" subdir 2021-09-24 16:13:50 -03:00
tunerchannel.c Move files from gst-plugins-good into the "subprojects/gst-plugins-good/" subdir 2021-09-24 16:13:50 -03:00
tunerchannel.h Move files from gst-plugins-good into the "subprojects/gst-plugins-good/" subdir 2021-09-24 16:13:50 -03:00
tunernorm.c Move files from gst-plugins-good into the "subprojects/gst-plugins-good/" subdir 2021-09-24 16:13:50 -03:00
tunernorm.h Move files from gst-plugins-good into the "subprojects/gst-plugins-good/" subdir 2021-09-24 16:13:50 -03:00
v4l2-utils.c Move files from gst-plugins-good into the "subprojects/gst-plugins-good/" subdir 2021-09-24 16:13:50 -03:00
v4l2-utils.h Move files from gst-plugins-good into the "subprojects/gst-plugins-good/" subdir 2021-09-24 16:13:50 -03:00
v4l2_calls.c Replace gst-i18n-*.h with gi18n-lib.h 2022-04-19 18:01:06 +00:00

README 

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/