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gstreamer/sys/v4l/README

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Added pthread software sync for improved timestamps and pthread queue and sync control to make sure that frames are q... Original commit message from CVS: Added pthread software sync for improved timestamps and pthread queue and sync control to make sure that frames are queued if we sync on them
2001-12-23 19:14:18 +00:00
General Idea:
=============
New video4linux plugins, can also handle hardware JPEG devices. First check-in, probably has lots of bugs which will ... Original commit message from CVS: New video4linux plugins, can also handle hardware JPEG devices. First check-in, probably has lots of bugs which will be fixed when we find them
2001-12-23 15:31:15 +00:00
Added pthread software sync for improved timestamps and pthread queue and sync control to make sure that frames are q... Original commit message from CVS: Added pthread software sync for improved timestamps and pthread queue and sync control to make sure that frames are queued if we sync on them
2001-12-23 19:14:18 +00:00
_____/ gstv4lsrc.[ch]
_____/ \ v4lsrc_calls.[ch]
/
gstv4lelement.[ch] _/____________/ gstv4lmjpegsrc.[ch]
v4l_calls.[ch] \ \ v4lmjpegsrc_calls.[ch]
\_____
\_____/ gstv4lmjpegsink.[ch]
\ v4lmjpegsink_calls.[ch]
New video4linux plugins, can also handle hardware JPEG devices. First check-in, probably has lots of bugs which will ... Original commit message from CVS: New video4linux plugins, can also handle hardware JPEG devices. First check-in, probably has lots of bugs which will be fixed when we find them
2001-12-23 15:31:15 +00:00
Added pthread software sync for improved timestamps and pthread queue and sync control to make sure that frames are q... Original commit message from CVS: Added pthread software sync for improved timestamps and pthread queue and sync control to make sure that frames are queued if we sync on them
2001-12-23 19:14:18 +00:00
I.e., all the files on the right are child classes of
Minor updates Original commit message from CVS: Minor updates
2001-12-24 21:43:31 +00:00
the v4lelement 'parent' on the left.
New video4linux plugins, can also handle hardware JPEG devices. First check-in, probably has lots of bugs which will ... Original commit message from CVS: New video4linux plugins, can also handle hardware JPEG devices. First check-in, probably has lots of bugs which will be fixed when we find them
2001-12-23 15:31:15 +00:00
* v4lelement handles generic v4l stuff (picture settings,
audio, norm/input setting, open()/close())
* v4lsrc, v4lmjpegsrc handle the capture specific
functions. Maybe we'd need a v4lmpegsrc too
* v4lmjpegsink handles mjpeg hardware playback of video
Added pthread software sync for improved timestamps and pthread queue and sync control to make sure that frames are q... Original commit message from CVS: Added pthread software sync for improved timestamps and pthread queue and sync control to make sure that frames are queued if we sync on them
2001-12-23 19:14:18 +00:00
Useful Documentation:
=====================
MJPEG/V4L API : ./videodev_mjpeg.h
V4L API : /usr/include/linux/videodev.h or
http://roadrunner.swansea.uk.linux.org/v4l.shtml
V4L2 API : http://www.thedirks.org/v4l2/
BSD/Meteor API: /usr/include/machine/ioctl_meteor.h
mjpegtools : http://www.sourceforge.net/projects/mjpeg
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