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Diffstat (limited to 'sys/v4l2/README')
| -rw-r--r-- | sys/v4l2/README | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/sys/v4l2/README b/sys/v4l2/README new file mode 100644 index 0000000..e9c4ab4 --- /dev/null +++ b/sys/v4l2/README @@ -0,0 +1,32 @@ +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/ + |