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Member "gst-plugins-good-1.20.3/sys/v4l2/README" (15 Jun 2022, 1076 Bytes) of package /linux/misc/gst-plugins-good-1.20.3.tar.xz:


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    1 v4l2 plugins
    2 ============
    3 
    4 The idea is a bit the same as the idea for the v4l1 plugins. We want
    5 one generic v4l2element, and a few child objects (probably only two:
    6 v4l2src and v4l2sink):
    7 
    8                 /-------- v4l2src
    9 v4l2element ---=
   10                 \-------- v4l2sink
   11 
   12 Both v4l2src and v4l2sink have a uncompressed and a compressed
   13 recording-/playback-mode. Since this is all part of v4l2, the 'client'
   14 of these elements, i.e. an application using v4l2src/v4l2sink, will
   15 hardly notice this. All capsnego stuff is done inside, and the plugin
   16 knows which formats are compressed and which are not.
   17 
   18 Please note that the v4l1 and the v4l2 plugins are *not* compatible
   19 concerning properties. Naming has been kept the same where possible,
   20 but in some cases, properties had to be removed or added to make
   21 full use of v4l2.
   22 
   23 V4L2 API: http://linux.bytesex.org/v4l2/.
   24           http://v4l2spec.bytesex.org/
   25           /usr/include/linux/videodev2.h or
   26 
   27 Kernel patches available from
   28           http://dl.bytesex.org/patches/.
   29 
   30 Articles:
   31           http://lwn.net/Articles/203924/
   32