tizen 2.3 release
[framework/multimedia/gst-plugins-base0.10.git] / sys / v4l / README
1 General Idea:
2 =============
3
4                             _____/ gstv4lsrc.[ch]
5                       _____/     \ v4lsrc_calls.[ch]
6                      /
7 gstv4lelement.[ch] _/____________/ gstv4lmjpegsrc.[ch]
8 v4l_calls.[ch]      \            \ v4lmjpegsrc_calls.[ch]
9                      \_____
10                            \_____/ gstv4lmjpegsink.[ch]
11                                  \ v4lmjpegsink_calls.[ch]
12
13 I.e., all the files on the right are child classes of
14 the v4lelement 'parent' on the left.
15
16 * v4lelement handles generic v4l stuff (picture settings,
17     audio, norm/input setting, open()/close())
18 * v4lsrc, v4lmjpegsrc handle the capture specific
19     functions. Maybe we'd need a v4lmpegsrc too
20 * v4lmjpegsink handles mjpeg hardware playback of video
21
22 Useful Documentation:
23 =====================
24 MJPEG/V4L API : ./videodev_mjpeg.h
25
26 V4L API       : /usr/include/linux/videodev.h or
27                 /usr/src/linux/Documentation/video4linux/API.html or
28                 http://linux.bytesex.org/v4l2/API.html
29
30 V4L2 API      : /usr/include/linux/videodev2.h or
31                 http://v4l2spec.bytesex.org/
32
33 BSD/Meteor API: /usr/include/machine/ioctl_meteor.h
34
35 mjpegtools    : http://www.sourceforge.net/projects/mjpeg