Commit graph

169 commits

Author SHA1 Message Date
Wim Taymans
851f550003 v4l2: various cleanups
Various cleanups, avoids useless casts, move error handling outside of the main
code flow.
Negotiate to a resonable resolution instead of the max resolution.
2011-07-11 12:15:12 +02:00
Wim Taymans
e20d6f0bb5 v4l2: port to 0.11 2011-07-08 12:49:12 +02:00
Wim Taymans
c63dc97adf meta: update for new API 2011-03-08 17:02:30 +00:00
Wim Taymans
de1ca68077 v4l2: register metadata 2011-02-28 11:58:49 +01:00
Wim Taymans
9c08bde90b meta: fix for new API 2011-02-28 11:58:49 +01:00
Wim Taymans
f229f4d192 metadata: use metadata for private buffer data
Use buffer metadata to store element private data.
2011-02-28 11:58:49 +01:00
Wim Taymans
d90a388289 miniobject: port to 0.11
Use buffer private data instead of subclassing.
2011-02-28 11:58:48 +01:00
Tim-Philipp Müller
9dcb60822f v4l2: define V4L2_FIELD_INTERLACED_{TB,BT} if not available in header
Older kernels don't have these, and there's no easy way to check for the
existance of enums that doesn't involve a configure check, so just define
these if the V4L2_CAP_VIDEO_OUTPUT_OVERLAY define is not there, which was
added in the same commit as the TB/BT enum. Fixes compilation on CentOS 5.

https://bugzilla.gnome.org/show_bug.cgi?id=639339
2011-01-12 22:41:17 +00:00
Tim-Philipp Müller
b0eb10cc53 v4l2: mark v4l2sink as experimental and build only if --enable-experimental is passed
It's not really of 'good' quality yet, but there's a lot of
code shared with v4l2src, so not so easy to move it elswhere.

https://bugzilla.gnome.org/show_bug.cgi?id=612244
2011-01-02 11:40:29 +00:00
Rob Clark
c3721534c9 v4l2: fix race condition
The size of the buffer would be zero'd out in gst_v4l2_buffer_finalize()
after the buffer is qbuf'd or pushed onto the queue of available buffers..
leaving a race condition where the thread waiting for the buffer could awake
and set back a valid size before the finalizing thread zeros out the length.
This would result that the newly allocated buffer has length of zero.
2010-12-29 11:46:41 -06:00
Rob Clark
0cec72b97e v4l2sink: Add support for blocking dequeue.
We'd prefer to throttle the decoder if we run out of buffers, to keep a bound
on memory usage.  Also, for OMAP4 it is a requirement of the decoder to not
alternate between memory alloced by the display driver and malloc'd userspace
memory.
2010-12-29 11:46:40 -06:00
Rob Clark
ecfbaf58a5 v4l2: clear flags before reusing buffer from buffer pool
note: this really only affects v4l2sink since gst_v4l2_buffer_pool_get() is
only called once per buffer in the v4l2src case (in
gst_v4l2src_buffer_pool_activate())
2010-12-29 11:46:40 -06:00
Rob Clark
60c1a44917 v4l2: fix typo 2010-12-23 16:44:06 -06:00
Janne Grunau
ab69275f4d v4l2src: set top field first for interlaced buffers if v4l2 exports it
https://bugzilla.gnome.org/show_bug.cgi?id=634393
2010-12-04 16:42:21 +00:00
Stefan Kost
0134e950fa v4l2: log more details in buffer pool finalize
Helps to align with the loggin from libv4l.
2010-02-16 10:15:22 +02:00
Stefan Kost
e789d2253f v4l2: fix bufferpool file names in header comment 2010-01-18 14:55:38 +02:00
Stefan Kost
0a68003efe docs: fix gtk-doc warnings 2009-09-10 10:26:23 +03:00
Rob Clark
99e2ac121d v4l2sink: change where buffers get dequeued
It seems to cause strange occasional high latencies (almost 200ms) when dequeuing buffers from _buffer_alloc().  It is simpler and seems to work much better to dqbuf from the same thread that is queuing the next buffer.
2009-08-04 09:22:29 +02:00
Rob Clark
f19cfbda96 v4l2: Add v4l2sink element
This also does the following changes:
(1) pull the bufferpool code out into gstv4l2bufferpool.c, and make a
    bit more generic so it can be used both for v4l2src and v4l2sink
(2) move some of the device probing/configuration/caps stuff into
    gstv4l2object.c so it does not have to be duplicated between
    v4l2src and v4l2sink

Fixes bug .
2009-08-04 09:16:56 +02:00