Commit graph

830 commits

Author SHA1 Message Date
Nicolas Dufresne
a6a8c2b5eb v4l2videodec: Cleanly fail if set_format is never called 2014-05-08 15:56:35 -04:00
Nicolas Dufresne
a8e81bd81e v4l2: Expose RGB32 formats with and without alpha
As soon a the alpha component can be set, we can expose the RGB32 and BGR32
format as ARGB and BGRA as long we can deterministically set the alpha padding
value.
2014-05-08 15:56:35 -04:00
Nicolas Dufresne
403909d873 v4l2: Correctly check if video meta is needed
Correctly check if video meta is needed. In buffer pool, trust need_video_meta
flag in order to decide if configuration should succeed.
2014-05-08 15:56:35 -04:00
Nicolas Dufresne
f70bb08411 v4l2object: Fix tiled stride request
Fix stride request for tiled format and improve logging.
2014-05-08 15:56:35 -04:00
Nicolas Dufresne
36dfdff84c v4l2object: Ensure video and crop meta are enabled if needed
In certain cases we cannot live without video meta and/or crop meta
being enabled in our internal buffer pool. Ensure this is always the case,
regardless of having support for allocation query.
2014-05-08 15:56:35 -04:00
Nicolas Dufresne
e9eba56cd3 v4l2videodec: Ensure internal pool are activated 2014-05-08 15:56:35 -04:00
Nicolas Dufresne
a8024fef04 v4l2videodec: Check that pool where allocated before flushing them
Upon error, the pools might not have been allocated yet, hence we should not
try and flush them (even though we still want to make sure the processing thread
is fully stopped).
2014-05-08 15:56:35 -04:00
Nicolas Dufresne
6196026c76 v4l2bufferpool: Enforce activation outside of process
Enforce pool being activate from before calling pool process. This should
help catching basic errors in the usage of buffer pool.
2014-05-08 15:56:35 -04:00
Nicolas Dufresne
efe68f086f v4l2object: don't use own pool if downstream don't support video meta 2014-05-08 15:56:35 -04:00
Nicolas Dufresne
2f00119e3b v4l2bufferpool: Use obj->n_v4l2_planes for correct number of planes
Buffer pool was guessing wrongly the number of planes rather
then reading the value from obj->n_v4l2_planes. This was causing
format YU12 (I420) to fail upon check.
2014-05-08 15:56:35 -04:00
Nicolas Dufresne
f3ce6fd25b v4l2object: Fix handling of contiuous vs non-contiguous support
The complex mechanic to try and choose the right thing did not work. Instead,
simply probe the non-contiguous format first and then the contiguous one.
This is in fact very low overhead, as there is a relatively small number of
pixel format supported by each devices.
2014-05-08 15:56:35 -04:00
Nicolas Dufresne
a7286563ee v4l2: Add initial support for alignment and cropping 2014-05-08 15:56:35 -04:00
Nicolas Dufresne
70e7868f18 v4l2object: Rename setup_format() method into acquire_format()
The setup_format() was confusing since it does not set anything, in fact
it reads the setup from the driver and save it.
2014-05-08 15:56:35 -04:00
Nicolas Dufresne
8cf1c330d5 v4l2object: Move type declaration to the top 2014-05-08 15:56:35 -04:00
Nicolas Dufresne
b4d89b9809 v4l2videodec: Protect NULL pool while going to READY
When the pipeline fails early, the pool might be unset before the processing
thread has run once. Add protection against that.
2014-05-08 15:56:35 -04:00
Nicolas Dufresne
b5dde037b4 v4l2object: Fail cleanly if pixel format is unkown or not raw video
Certain decoder has been found to not choose a format automatically. Running
v4l2videodec on these would assert. This patch will make it fail cleanly
instead.
2014-05-08 15:56:35 -04:00
Nicolas Dufresne
7e379e8fff v4l2videodec: Clear the input state pointer after unref
If caps are set again, we have a risk od returning from set_format with a
input_state pointing to dead memory. Clearing the pointer after unref fix
this issue.
2014-05-08 15:56:35 -04:00
Nicolas Dufresne
7101c4341a v4l2videodec: handle stop being called without flush
Uppon certain downstream error, stop() is called without a flush(). This mean that
the streaming thread may still be running even though unlock has been called.
Now calling flush to reset the decoder state if we are processing.
2014-05-08 15:56:35 -04:00
Nicolas Dufresne
fb852669de v4l2videodec: Default to template in caps query 2014-05-08 15:56:35 -04:00
Nicolas Dufresne
27a617d75f v4l2videodec: Ensure processing thread has stopped when draining 2014-05-08 15:56:35 -04:00
Nicolas Dufresne
6f48c74f2a v4l2videodec: Don't drain if processing thread is inactive 2014-05-08 15:56:35 -04:00
Tim-Philipp Müller
17c107d4e4 v4l2: minor fix for closing the fd
The fd returned by open() could theoretically be 0 as well.

Coverity CID 1211823.
2014-05-05 12:07:25 +01:00
Nicolas Dufresne
717bbbbe70 v4l2devicemonitor: Port to use GstV4l2Iterator
https://bugzilla.gnome.org/show_bug.cgi?id=727925
2014-05-03 23:11:35 -04:00
Nicolas Dufresne
aa74871080 v4l2: Use single pass iterator for M2M probe
Instead of having each M2M class do their own probing, use the
GstV4l2Iterator and probe all devices in a single pass.

https://bugzilla.gnome.org/show_bug.cgi?id=727925
2014-05-03 23:11:35 -04:00
Nicolas Dufresne
726fc3b524 v4l2: Add a common device enumerator
This will allow removing code duplication (hence bugs duplication).

https://bugzilla.gnome.org/show_bug.cgi?id=727925
2014-05-03 23:11:35 -04:00
Nicolas Dufresne
f7d34bd237 v4l2videodec: Simplify sub-instanciation mechanism
Simplify sub-instanciation by defining an absract type and using subtype
class and instance init callback. This also fixes a bug where the template
pads get initialized too late.

https://bugzilla.gnome.org/show_bug.cgi?id=727925
2014-05-03 23:11:34 -04:00
Nicolas Dufresne
e06c9f7fce v4l2: Cleanup plugin registration
There is no plan to introduce special sources for jpeg, te v4l2src works fine
for this.

https://bugzilla.gnome.org/show_bug.cgi?id=727925
2014-05-03 23:11:34 -04:00
Nicolas Dufresne
7ff514fec6 v4l2: Correctly map RGB32 format
In v4l2 specification, RGB32 has the alpha, or pading, first, not last.
See http://linuxtv.org/downloads/v4l-dvb-apis/packed-rgb.html .

https://bugzilla.gnome.org/show_bug.cgi?id=540941
2014-04-30 15:36:07 -04:00
Sebastian Dröge
ab02b1db6c v4l2videodec: Initialise ioctl struct with zeroes before passing it to ioctl() 2014-04-16 17:23:52 +02:00
Nicolas Dufresne
e5ef2db489 v4l2: Fix support for caps without width, height, framerate or format
For format like mpegts, width and height is rarely in the negotiated caps. This
patch fixes failure when setting format, and prevent introducing width, height,
framerate and format to the caps when fixating.

https://bugzilla.gnome.org/show_bug.cgi?id=725860
2014-04-01 14:28:08 -04:00
William Manley
517f50f54f v4l2src: Fix support for mpegts streams
It seems that GStreamer's mpegts elements (tsdemux, tsparse) require caps
`video/mpegts,systemstream=true`.  As far as I can see the significance
of systemstream is to indicate that this is a container format rather than
an elementary stream.  As this is the case (and I can't understand how it
could not be the case with mpegts) I add systemstream=true to v4l2src's
caps.

This allows v4l2src to be linked with tsdemux for playback from my
Hauppauge HD-PVR with the pipeline:

    v4l2src ! queue ! tsdemux ! video/x-h264 ! decodebin ! xvimagesink

In combination with the next commit this fixes using Hauppauge HD-PVR with
GStreamer 1.0+.
2014-03-29 17:21:17 -04:00
Vincent Penquerc'h
4d0e1a4536 v4l2: attempt to fix infinite (for small version of infinite) loop 2014-03-29 17:09:02 -04:00
Rico Tzschichholz
f3caba6847 v4l2: fix distcheck
Make sure ext/*.h are dist'ed
2014-03-28 19:35:53 +00:00
Olivier Crête
cfa5877899 v4l2: Implement GstDeviceMonitor subclass
https://bugzilla.gnome.org/show_bug.cgi?id=678402
2014-03-16 20:37:54 -04:00
Olivier Crête
fdceedb77c v4l2: Remove GstPropertyProbe leftovers 2014-03-16 19:24:59 -04:00
Nicolas Dufresne
155d666845 v4l2: Add types compatiblity for other OS
Adds type compatiblity with other OS like BSD. This uses types mapping macro to
avoid conflict with existing defined types. We resuse glib types as these are
already available on supported platforms. This is GCC only because of the
le32 type that uses bitwise attribute.

https://bugzilla.gnome.org/show_bug.cgi?id=726453
2014-03-16 17:32:03 +01:00
Nicolas Dufresne
11103c6c47 v4l2: Remove XV support
XV support for v4l2 never became upstream and ended up being
commented out with an undef for a long time now.
2014-03-15 13:54:47 +01:00
Nicolas Dufresne
418a4940a8 v4l2: Use a copy of videodev2.h header
With years the amount of ifdef have grown up and we are not even sure if the
old code path compiles. Each time we need to update the v4l2 framework to add
the new feature, we break compilation on older kernel. With exception of two
controls in the video orientation control, this patch get rid of all ifdef by
including the latest version of videodev2.h inside GStreamer.

Fixes https://bugzilla.gnome.org/show_bug.cgi?id=723446
2014-03-15 13:54:47 +01:00
William Manley
4f47442c7f v4l2: Fix typo contol -> control
https://bugzilla.gnome.org/show_bug.cgi?id=725632
2014-03-08 19:29:58 -05:00
William Manley
d3bd3ecc3e v4l2: Normalise control names in the same way as v4l2-ctl
V4L2 kernel drivers allow configuration of the hardware settings via a
mechanism called controls.  These can be referred to by name such as
"Brightness" and "White Balance Temperature".  The user-space command line
client for setting these controls (v4l2-ctl) normalises these names such
that they only contain lower case alphanumeric characters and the
underscore '_'.  e.g:

    Kernel                     v4l2-ctl
    ----------------------------------------------------
    Brightness                 brightness
    White Balance Temperature  white_balance_temperature
    Focus (absolute)           focus_absolute

GStreamer seems to want to follow this pattern but failed for controls with
more than one consecutive non-alphanum character.  e.g. GStreamer would
produce "focus__absolute_" rather than "focus_absolute".

This commit fixes that issue.  Backwards compatibility is preserved by
normalising all control names before comparison.

https://bugzilla.gnome.org/show_bug.cgi?id=725632
2014-03-08 19:27:54 -05:00
Hugues Fruchet
a2d00122ed v4l2object: do not emit "parsed" caps for vp8
VP8 doesn't require parsing (vp8parse doesn't exist, so negotiation with demux fails
if "parsed" is set in caps).

https://bugzilla.gnome.org/show_bug.cgi?id=724636
2014-02-25 16:11:23 -05:00
Nicolas Dufresne
82f2bf052a v4l2: Don't require parser for VP8
Until GStreamer has one (see bug722760), we should not require a parser for VP8.

https://bugzilla.gnome.org/show_bug.cgi?id=722128
2014-02-25 14:29:11 -05:00
Nicolas Dufresne
a1db7e8c6c v4l2: CAPTURE_MPLANE is well tested now
https://bugzilla.gnome.org/show_bug.cgi?id=722128
2014-02-25 14:29:10 -05:00
Benjamin Gaignard
2a870d7d9b v4l2videodec: Create one element per device
For each videoCdevice probe it input/output capabilities
if it match with video decoder requirement register a new element.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>

https://bugzilla.gnome.org/show_bug.cgi?id=722128
2014-02-25 14:29:10 -05:00
Nicolas Dufresne
bd51c37196 v4l2videodec: Calculate latency from device information
Decoders or other devices that expose a minimum buffers required produce
an first output. We use this information to calculate latency.

https://bugzilla.gnome.org/show_bug.cgi?id=722128
2014-02-25 14:29:10 -05:00
Nicolas Dufresne
61183670c0 v4l2videodec: Implement v4l2videodec
Implement an element that can driver V4L2 M2M decoder device.

https://bugzilla.gnome.org/show_bug.cgi?id=722128
2014-02-25 14:29:10 -05:00
Mark Nauwelaerts
433d4f902d v4l2: make some more controls configurable
... at least if one tries hard enough using extra-controls property.
2014-02-23 13:06:43 +01:00
Mark Nauwelaerts
43a9c7652b v4l2src: handle old and odd driver behaviour when listing controls 2014-02-22 21:31:43 +01:00
Tim-Philipp Müller
5535a824a4 v4l2src: also unset INTERLACED flag on buffers if frame is not interlaced
https://bugzilla.gnome.org/show_bug.cgi?id=724899
2014-02-21 19:48:42 +00:00
Simon Farnsworth
b4820460d8 v4l2src: Flag interlaced buffers as interlaced.
We correctly indicate the field ordering on interlaced buffers, but fail to
flag them as containing interlaced video, which we need to do here because
we signal interlace-mode=mixed in our caps. This means that downstream
elements (like vaapipostproc from gstreamer-vaapi) don't recognise these
buffers as in need of deinterlacing.

Fix this by setting the interlaced flag on all interlaced buffers.

Signed-off-by: Simon Farnsworth <simon.farnsworth@onelan.co.uk>

https://bugzilla.gnome.org/show_bug.cgi?id=724899
2014-02-21 19:48:06 +00:00
Ryan Lortie
a46f667853 v4l2: guard use of ENODATA with #ifdef
Not all systems with v4l have ENODATA defined, so check that we have it
before attempting to use it.

https://bugzilla.gnome.org/show_bug.cgi?id=722953
2014-01-25 18:51:41 +01:00
Michael Olbrich
3978f6ae6c v4l2: set GST_BUFFER_FLAG_DELTA_UNIT when appropriate
https://bugzilla.gnome.org/show_bug.cgi?id=722394
2014-01-17 10:04:34 -05:00
Michael Olbrich
3d2bd4ff49 v4l2bufferpool: don't ref the newly created allocator
Otherwise the allocator will never be deleted.

https://bugzilla.gnome.org/show_bug.cgi?id=712612
2014-01-17 08:32:28 -05:00
Nicolas Dufresne
4cffae36e3 v4l2: Add NV12_64Z32 support
https://bugzilla.gnome.org/show_bug.cgi?id=722127
2014-01-14 16:51:52 -05:00
Vincent Penquerc'h
b80e3a4690 v4l2: fix build break using V4L2_CAP_VIDEO_M2M_MPLANE
This may not be defined. Since the previous version used
only the other define (V4L2_CAP_VIDEO_OUTPUT_MPLANE), fall
back on this only when not available.
2014-01-13 09:14:00 +00:00
Julien Isorce
55da3bc885 v4l2bufferpool: check set_config return value in gst_v4l2_buffer_pool_new
https://bugzilla.gnome.org/show_bug.cgi?id=720568
2014-01-10 17:20:21 -05:00
Nicolas Dufresne
b39c838ece v4l2object: Add parsed=1 field for encoded output
https://bugzilla.gnome.org/show_bug.cgi?id=720568
2014-01-10 17:20:21 -05:00
Nicolas Dufresne
5be7d39a3f v4l2object: Don't leak empty caps
https://bugzilla.gnome.org/show_bug.cgi?id=720568
2014-01-10 17:20:21 -05:00
Julien Isorce
a54b34121f v4l2bufferpool: do not stop a stream not previously started
https://bugzilla.gnome.org/show_bug.cgi?id=720568
2014-01-10 17:20:21 -05:00
Nicolas Dufresne
986e5b460d v4l2object: Don't enforce dimension field on encoded formats
Don't enforce having width, height and framerate in template caps for encoded
formats. These don't always need to be exposed and may break negotiation for
decoder and decoding sink. If needed, these field will be automatically added
when probed caps are known.

https://bugzilla.gnome.org/show_bug.cgi?id=720568
2014-01-10 17:20:21 -05:00
Julien Isorce
ba81eeb16b v4l2object: unref downstream pool
https://bugzilla.gnome.org/show_bug.cgi?id=720568
2014-01-10 17:20:21 -05:00
Julien Isorce
c701dcd16c v4l2bufferpool: add gst_v4l2_buffer_pool_flush
STREAMOFF set all v4l2buffers to DEQUEUE state.

Then for CAPTURE we call QBUF on each buffer.
For OUTPUT the buffers are just push back in the GstBufferPool
base class 's queue.
But the loop actually looks like the same.

https://bugzilla.gnome.org/show_bug.cgi?id=720568
2014-01-10 17:20:21 -05:00
Benjamin Gaignard
062f4f8710 v4l2object: Add vp8 support
https://bugzilla.gnome.org/show_bug.cgi?id=720568
2014-01-10 17:13:23 -05:00
Nicolas Dufresne
e017666645 v4l2object: Don't force framerate field for OUTPUT
If there is nothing that seems to force a certain framerate on output device, it is
preferable to simply not set that feild. This allow negotiation with tsdemux in a
decoder for example.

https://bugzilla.gnome.org/show_bug.cgi?id=720568
2014-01-10 17:13:23 -05:00
Nicolas Dufresne
97cf8f4d17 v4l2object: _v4l2fourcc_to_structure() can be static
This function is not used anymore outside v4l2object.

https://bugzilla.gnome.org/show_bug.cgi?id=720568
2014-01-10 17:13:23 -05:00
Nicolas Dufresne
fdd7bcc78c v4l2object: Add MPEG1/2 support
https://bugzilla.gnome.org/show_bug.cgi?id=720568
2014-01-10 17:13:23 -05:00
Nicolas Dufresne
0c8ec43a12 v4l2object: Ask for a decent buffer size when dealing with encoded formats
https://bugzilla.gnome.org/show_bug.cgi?id=720568
2014-01-10 17:13:23 -05:00
Nicolas Dufresne
86646ce03b v4l2bufferpool: On warn on size change if n_planes > 1
https://bugzilla.gnome.org/show_bug.cgi?id=720568
2014-01-10 17:13:23 -05:00
Julien Isorce
79f2c06883 v4l2object: check if translated format is valid
Also add a FIXME in gst_v4l2_object_setup_format
to note that the whole function has to be improved
in order to support ENCODED formats.
It requires to have an encoder device which we do not
have right now.

https://bugzilla.gnome.org/show_bug.cgi?id=720568
2014-01-10 17:13:23 -05:00
Nicolas Dufresne
520dda092a v4l2object: Validate returned dimensions
https://bugzilla.gnome.org/show_bug.cgi?id=720568
2014-01-10 17:13:23 -05:00
Nicolas Dufresne
61ce7b1a62 v4l2object: Ensure max is not smaller then min in decide_allocation
https://bugzilla.gnome.org/show_bug.cgi?id=720568
2014-01-10 17:13:23 -05:00
Nicolas Dufresne
b261287745 v4l2object: Don't keep the max paramter when using our own pool
https://bugzilla.gnome.org/show_bug.cgi?id=720568
2014-01-10 17:13:23 -05:00
Nicolas Dufresne
994c5d2c93 v4l2bufferpool: Respect the suggested min buffer
https://bugzilla.gnome.org/show_bug.cgi?id=720568
2014-01-10 17:13:23 -05:00
Nicolas Dufresne
a77d2a64c1 v4l2object: Allocate pool if needed in decide_allocation
https://bugzilla.gnome.org/show_bug.cgi?id=720568
2014-01-10 17:13:23 -05:00
Nicolas Dufresne
d79eea15fa v4l2object: Add V4L2_CID_MIN_BUFFERS_FOR_CAPTURE support
https://bugzilla.gnome.org/show_bug.cgi?id=720568
2014-01-10 17:13:23 -05:00
Nicolas Dufresne
3cf85c9083 v4l2: Move decide allocation into v4l2object
https://bugzilla.gnome.org/show_bug.cgi?id=720568
2014-01-10 17:13:23 -05:00
Nicolas Dufresne
34a8cb09c8 v4l2object: Implement _setup_format()
This method allow setting up the object from the currently configured format on the
device. This is useful for M2M element where input data decides the format that will
be set on capture side.

https://bugzilla.gnome.org/show_bug.cgi?id=720568
2014-01-10 17:13:23 -05:00
Nicolas Dufresne
41c37a2c6c v4l2object: Split out saving format from set_format()
https://bugzilla.gnome.org/show_bug.cgi?id=720568
2014-01-10 17:13:23 -05:00
Julien Isorce
582f913667 v4l2object: set only one plane for encoded format
https://bugzilla.gnome.org/show_bug.cgi?id=720568
2014-01-10 17:13:23 -05:00
Nicolas Dufresne
e2c32ec997 v4l2object: Move code block where it belongs
https://bugzilla.gnome.org/show_bug.cgi?id=720568
2014-01-10 17:13:23 -05:00
Nicolas Dufresne
689672ef17 v4l2object: Don't check format specific information
The number of plane, and the stride does not represent a capability change. Same caps
can have different stride from the default GstVideoInfo and the number of planes will
never change for 1 format.

https://bugzilla.gnome.org/show_bug.cgi?id=720568
2014-01-10 17:13:22 -05:00
Nicolas Dufresne
5faa20b044 v4l2object: Move the extrapolation of stride at the right place
Now that we have a stride array, we should extrapolate only when
eeded (non multi-planar buffer).

https://bugzilla.gnome.org/show_bug.cgi?id=720568
2014-01-10 17:13:22 -05:00
Nicolas Dufresne
5f1e47da24 v4l2object: Move back assertions where they should be
https://bugzilla.gnome.org/show_bug.cgi?id=720568
2014-01-10 17:13:22 -05:00
Nicolas Dufresne
a64de44a0c v4l2object: Move mplane logic into gst_v4l2_object_get_caps_info()
It makes the gst_v4l2_object_set_format() slightly simplier and will make that
logic reusable. Note that gst_v4l2_object_has_mplane() will always return the
same value for one device. There is no need to check against the caps as this
has already been done by _open.

https://bugzilla.gnome.org/show_bug.cgi?id=720568
2014-01-10 17:13:22 -05:00
Nicolas Dufresne
4956b46bab v4l2object: Split _v4l2fourcc_to_video_format
https://bugzilla.gnome.org/show_bug.cgi?id=720568
2014-01-10 17:13:22 -05:00
Nicolas Dufresne
e1be685c34 v4l2bufferpool: Request buffers only once
VIDIOC_REQBUFS allocates buffer, it has no place inside set_config. Also, some driver do
no allow multiple calls to this ioctl.

https://bugzilla.gnome.org/show_bug.cgi?id=720568
2014-01-10 17:13:22 -05:00
Nicolas Dufresne
b80169a16a v4l2object: Don't validate dimension for encoded format
We set the dimensions just in case but don't validate them
afterwards. For some codecs the dimensions are *not* in the
bitstream, IIRC VC1 in ASF mode for example.

https://bugzilla.gnome.org/show_bug.cgi?id=720568
2014-01-10 17:13:22 -05:00
Nicolas Dufresne
4a85f90c79 v4l2object: Quirks for dev without initial format
Most M2M have undefined behaviour initially when VIDIOC_G_FMT is called.

https://bugzilla.gnome.org/show_bug.cgi?id=720568
2014-01-10 17:13:22 -05:00
Nicolas Dufresne
080f58166e v4l2object: Add gst_v4l2_object_open_shared()
https://bugzilla.gnome.org/show_bug.cgi?id=720568
2014-01-10 17:13:22 -05:00
Nicolas Dufresne
cf32d6ec43 v4l2object: Implement gst_v4l2_dup()
This will duplicated the FD from another object and copy over the probed result.

https://bugzilla.gnome.org/show_bug.cgi?id=720568
2014-01-10 17:13:22 -05:00
Nicolas Dufresne
7fd6dc08b9 v4l2object: make IO_MODE enum public
This is to allow adding a second io-mode property on M2M device like decoder so
input and output can be controlled separatly.

https://bugzilla.gnome.org/show_bug.cgi?id=720568
2014-01-10 17:13:22 -05:00
Nicolas Dufresne
203e245134 v4l2: better handle quirks activation
This way we can activate deactivate those quirks all at once at one
place.

https://bugzilla.gnome.org/show_bug.cgi?id=720568
2014-01-10 17:13:22 -05:00
Nicolas Dufresne
092e7605d3 v4l2: Fix h264 caps
V4L2_PIX_FMT_H264 is documentated as byte-stream (with start code). The ensure proper
negotiation with element like h264parse.

https://bugzilla.gnome.org/show_bug.cgi?id=720568
2014-01-10 17:13:22 -05:00
Nicolas Dufresne
e821de3494 v4l2object: Split caps in different categories
This is need to correctly expose capabilities on specialized devices
like decoders and encoders.

https://bugzilla.gnome.org/show_bug.cgi?id=720568
2014-01-10 17:13:13 -05:00
Sebastian Rasmussen
3f8b423516 v4l2: Handle v4l2_ioctl() errors even in error handling
Fixes https://bugzilla.gnome.org/show_bug.cgi?id=721268
2014-01-03 10:59:57 +01:00
Julien Isorce
3c70741e45 v4l2bufferpool: add support for multi-planar V4l2 API in DMABUF mode
Fixes bug https://bugzilla.gnome.org/show_bug.cgi?id=712754
2013-12-04 09:28:25 +00:00
Julien Isorce
303cec48db v4l2: refactor by emulating one v4l2_plane in non-MPLANE mode
so that the buffer informations can be retrieved the same way
in both MPLANE and non-MPLANE mode.

Here "emulating" means "manually fill in the plane".

Fixes bug https://bugzilla.gnome.org/show_bug.cgi?id=712754
2013-12-04 09:28:08 +00:00
Julien Isorce
61ae84b50d v4l2: add support for multi-planar V4L2 API
This api is in linux kernel since version 2.6.39,
and present in all version 3.

The commit that adds the API in master branch of the
linux kernel source is:
f8f3914cf9

v4l2 doc: "Some devices require data for each input
or output video frame to be placed in discontiguous
memory buffers"

There are newer structures 'struct v4l2_pix_format_mplane'
and 'struct v4l2_plane'.
So the pixel format is not setup with the same API when using
multi-planar.

Also for gst-v4l2, one of the difference is that in GstV4l2Meta
there are now one mem pointer for each maped plane.

When not using multi-planar, this commit takes care of keeping
the same code path than previously. So that the 2 cases are
in two different blocks triggered from V4L2_TYPE_IS_MULTIPLANAR.

Fixes bug https://bugzilla.gnome.org/show_bug.cgi?id=712754
2013-12-04 09:27:20 +00:00
Nicolas Dufresne
90ac945dcc v4l2object: Use space instead of tabs
https://bugzilla.gnome.org/show_bug.cgi?id=712754
2013-11-25 13:44:50 -05:00
Nicolas Dufresne
f18290226a v4l2object: Fix header indentation so it's readable again
It's unfortunate to have to do this, but with the mix of tabs and space, plus all the random
indentation this header has become very hard to read.

https://bugzilla.gnome.org/show_bug.cgi?id=712754
2013-11-25 13:44:35 -05:00
Michael Olbrich
f8f2fc3e86 v4l2: clear cached caps on close
A different device with different caps may be used for the next open.

https://bugzilla.gnome.org/show_bug.cgi?id=712611
2013-11-21 14:14:24 -05:00
Tim-Philipp Müller
d506409af5 docs: get rid of 'Since: 0.10.x' markers
And some gtk-doc markup fixes.
2013-11-18 14:47:35 +00:00
Marc Leeman
be01e80e6b v4l2object: print FOURCC_FORMAT when enumerating
https://bugzilla.gnome.org/show_bug.cgi?id=712206
2013-11-13 13:52:49 +01:00
Marc Leeman
bc87f39a90 v4l2: init v4l2_buffer to 0x0 before ioctl
https://bugzilla.gnome.org/show_bug.cgi?id=712137
2013-11-12 13:08:33 -05:00
Peter Korsgaard
94f3d6fc07 v4l2bufferpool: O_CLOEXEC needs _GNU_SOURCE
On some systems (E.G. uClibc and older Glibc versions), O_CLOEXEC is only
defined when _GNU_SOURCE is specified, so do so.

_GNU_SOURCE needs to be defined before any system headers are included,
so move the fcntl.h section up.

https://bugzilla.gnome.org/show_bug.cgi?id=709423
2013-10-04 14:33:43 +02:00
Tim-Philipp Müller
51ff79842d v4l2src: print probed caps as caps again in debug log
This got lost during refactoring.
2013-10-03 18:33:01 +01:00
Robert Krakora
141a1fc296 v4l2bufferpool: Restore original GstMemory in buffer if it has been changed
https://bugzilla.gnome.org/show_bug.cgi?id=706083
2013-09-23 11:58:39 -04:00
Olivier Crête
19021e7176 v4l2: Remove commented out line 2013-09-19 17:39:17 -04:00
Olivier Crête
d1e16f7b0c v4l2bufferpool: dmabuf is not a singleton anymore
https://bugzilla.gnome.org/show_bug.cgi?id=707793
2013-09-18 15:13:59 -04:00
Mathieu Duponchelle
374a97a3e9 v4l2: Use newly #defined metadata names. 2013-09-09 15:39:17 +02:00
Sebastian Dröge
478f0dcfe7 v4l2bufferpool: Fix missing condition in previous commit 2013-09-09 14:46:42 +02:00
Sebastian Dröge
1e7c3e4520 v4l2bufferpool: Also fix strides for other semi-planar video formats 2013-09-09 14:45:55 +02:00
Andreea Fulger
78adf28a61 v4l2bufferpool: Fix stride for NV12/NV21
https://bugzilla.gnome.org/show_bug.cgi?id=707758
2013-09-09 14:45:55 +02:00
Tim-Philipp Müller
1dfc1f2686 Don't use setlocale in plugins()
Only apps should call setlocale(), not libraries.
2013-09-01 21:18:38 +01:00
Olivier Crête
d595c08aca v4l2: Add forward declaration for gst_v4l2_object_get_format_list 2013-08-19 13:19:42 -04:00
Olivier Crête
48caa1712a v4l2: De-duplicate caps probing between src and sink 2013-08-19 13:08:18 -04:00
Olivier Crête
24286f1612 v4l2: Use G_DEFINE_ macros for added thread safety 2013-08-19 12:48:35 -04:00
Tim-Philipp Müller
fdddc35f20 v4l2: remove unused enumtypes and use generic marshaller 2013-08-04 11:03:49 +01:00
Michael Olbrich
07e4dd3424 v4l2: bufferpool: don't forget to release buffer on error
If the pool is stopped while gst_v4l2_buffer_pool_dqbuf() waits for a
buffer then the return value is GST_FLOW_FLUSHING. In this case the buffer
to queue must also be released. Otherwise is will never be deleted or
returned to its pool.

https://bugzilla.gnome.org/show_bug.cgi?id=703764
2013-07-08 16:27:19 +02:00
Michael Olbrich
5c99fefa04 v4l2: don't extract data from caps twice
gst_video_info_from_caps() always extract width, height, interlace mode and
framerate now. It is no longer necessary to do it again for encoded
formats.

https://bugzilla.gnome.org/show_bug.cgi?id=703399
2013-07-02 10:08:46 +02:00
Wim Taymans
821d99a503 v4l2: don't redefine the PERFORMANCE debug variable
It is already defined in core.

fixes https://bugzilla.gnome.org/show_bug.cgi?id=702732
2013-06-20 15:35:11 +02:00
Sjoerd Simons
8e43c0ec9e v4l2: Optimize negotiation by removing the query filter
As cameras tend to have a quite specific set of capabilities (specific
framerates for each resolution), getting the peer caps filtered by our
probed caps can cause a big increase in the caps size which slows down
things quire a bit.

As for negotiation v4l2 iterates through the caps of the peer to find the
first intersection with the probed caps, getting the fully expanded
intersection of capabilities is not useful.

Using the same testcase as for bug #702632, adding this patch on top of
the patches suggested there speeds up getting the inital frame from
around ~14-15 seconds to around ~3-4 seconds.

https://bugzilla.gnome.org/show_bug.cgi?id=702638
2013-06-19 15:05:25 +02:00
Michael Olbrich
a1c34b5407 v4l2: make sure the element is not deleted before the pool
The pool accesses data from the v4l2object so it must exist at least
as long as the pool. Refcount the element which controls the object
live-time.

https://bugzilla.gnome.org/show_bug.cgi?id=701650
2013-06-07 20:07:42 +02:00
Michael Olbrich
0769a78dd1 v4l2: iterate controls with V4L2_CTRL_FLAG_NEXT_CTRL if possible
In v2.6.18 control classes where added to the v4l2 API.
Iterating over CIDs starting with V4L2_CID_BASE will only find controls for
the first control class.
By iterating with V4L2_CTRL_FLAG_NEXT_CTRL all controls are found.

This is necessary to make controls from other control classes available in
the extra-controls property.

If V4L2_CTRL_FLAG_NEXT_CTRL is not defined at compile time or not supported
at runtime then the old mechanism for iterating is used.

https://bugzilla.gnome.org/show_bug.cgi?id=701540
2013-06-05 13:00:21 +02:00
Michael Olbrich
74d217c44b v4l2: improve pixel aspect ratio handling
Instead of just assuming a aspect ratio of 1/1 use VIDIOC_CROPCAP to ask
the device.
This also add a pixel-aspect-ratio property to overwrite the value from the
driver and a force-aspect-ratio property to ignore it.

https://bugzilla.gnome.org/show_bug.cgi?id=700285
2013-06-04 17:37:15 +02:00
Stirling Westrup
86405d6ee7 v4l2: Fix compilation with older kernels
https://bugzilla.gnome.org/show_bug.cgi?id=701595
2013-06-04 17:04:11 +02:00
Michael Olbrich
3417a791ac v4l2: call VIDIOC_REQBUFS with count = 0 in pool_finalize
Without this the following sequence fails:

- set_caps()
  - object_stop() (does nothing)
  - set_format() -> VIDIOC_S_FMT
- set_config() -> VIDIOC_REQBUFS with count = N
- set_caps()
  - object_stop()
    - pool_finalize()
  - set_format() -> VIDIOC_S_FMT => EBUSY

Usually the pool is started after set_config(), in which case object_stop()
will result in a pool_stop and therefore VIDIOC_REQBUFS with count = 0 but
that is not guaranteed.
Also calling VIDIOC_REQBUFS with count = 0 in pool_finalize() if necessary
fixes this problem.

Fixes https://bugzilla.gnome.org/show_bug.cgi?id=701543
2013-06-04 10:45:06 +02:00
Michael Olbrich
496995a7d5 v4l2: rework sink buffer refcounting
This is a followup patch for #700781, which is not quite correct.
The buffer handling is quite complicated here.
The original code intended to the the following:

- gst_v4l2_buffer_pool_process() calls QBUF and adds the buffer to the
  local list.
- The sink calls gst_buffer_unref() which returns the buffer to the pool
  but not the 'free list'.
- Some time later DQBUF returns the buffer and
  gst_v4l2_buffer_pool_release_buffer() puts in on the 'free list'.

If the buffer must be copied then (parent_class)->acquire_buffer() is
called directly to keep the buffer in the pool.

This has two problems:
1. If gst_v4l2_buffer_pool_release_buffer() is called before the buffer is
   returned to the pool, then the buffer is put on the 'free list' twice.
   This can happen if a reference to the buffer is kept outside the sink,
   of if DQBUF returns the buffer, that was just queued with QBUF.
2. If buffers are copied, then all buffers are in the pool at all times. As
   a result gst_v4l2_buffer_pool_stop() and gst_v4l2_buffer_pool_dqbuf()
   can access pool->buffers at the same time, which can lead to memory
   corruption.

The patch for #700781 fixes those problems, but with the side effect that
there are always buffers outside the pool (because they are queued) and
the pool is never stopped.
This patch fixes this by releasing the reference to the buffer after
handling it (to avoid problem 2.) so it can be returned to the pool.
gst_v4l2_buffer_pool_release_buffer() is only called if the buffer is
already in the pool (to avoid problem 1.).

Fixes https://bugzilla.gnome.org/show_bug.cgi?id=701375
2013-06-03 11:55:48 +02:00
Sebastian Dröge
82e7826af0 v4l2: Only conditionally use V4L2_CTRL_TYPE_INTEGER_MENU, it's not available in older versions 2013-05-29 20:35:41 +02:00
Michael Olbrich
0fb59275b0 v4l2: add a property for arbitrary v4l2 controls
This makes it possible to set any controls that can be set with
VIDIOC_S_CTRL.
The controls are set when the property is set (if the device is open)
and when the device is opened.

https://bugzilla.gnome.org/show_bug.cgi?id=698837
2013-05-29 20:18:11 +02:00
Michael Olbrich
f9cc655adf v4l2: keep a reference to all queued buffers
Without this, a queued buffer may be required, filled and queued before it
is dequeued.
Calling gst_buffer_pool_acquire_buffer() ensures that the buffer is set up
correctly and gst_buffer_unref() calls buffer_release().

https://bugzilla.gnome.org/show_bug.cgi?id=700781
2013-05-21 16:44:58 +02:00
Michael Olbrich
00ffe41e6a v4l2: Don't stop streaming when set_caps is called with unchanged caps
This can happen if other parts of the pipeline are reconfigured.
Stop streaming even for a short amount of time can be quite visible, so it
should be avoided if possible.

https://bugzilla.gnome.org/show_bug.cgi?id=700503
2013-05-20 11:13:18 +02:00
Michael Olbrich
57c0f4d6b5 v4l2: only add interlace-mode to the caps for raw formats
https://bugzilla.gnome.org/show_bug.cgi?id=700280
2013-05-14 13:01:27 +02:00
Michael Olbrich
16b0fd5ad9 v4l2: copy and set the actual size of the content
https://bugzilla.gnome.org/show_bug.cgi?id=700282
2013-05-14 12:57:14 +02:00
Michael Olbrich
113b60935a v4l2: request 0 buffers when stopping
Without this stopping the pool in *_set_caps() is useless.
S_FMT will still fail with EBUSY.

https://bugzilla.gnome.org/show_bug.cgi?id=699835
2013-05-07 16:39:41 +02:00
Philipp Zabel
59d7d5c6bb v4l2: fill out v4l2_buffer.bytesused field for v4l2sink
When queuing a buffer for a sink, bytesused must contain the actual
amount of data.

For a source, the driver must overwrite this, so it doesn't matter
what is set here.

https://bugzilla.gnome.org/show_bug.cgi?id=699598
2013-05-04 11:19:14 +01:00
Michael Olbrich
53da901cc9 v4l2: always generate video info from caps
In the past gst_video_info_from_caps() only video/x-raw. Now it also
supports other video/* and image/* formats.
With this patch the format won't be GST_VIDEO_FORMAT_UNKOWN and
gst_v4l2_buffer_pool_set_config() handles strides correctly.

https://bugzilla.gnome.org/show_bug.cgi?id=699570
2013-05-03 13:14:58 +02:00
Michael Olbrich
1e777ede92 v4l2: try to allocate new buffers with VIDIOC_CREATE_BUFS if needed
If max_buffers is 0 then an arbitrary number of buffers (currently 4) is
allocated. If this is not enough v4l2src starts copying buffers.
With this patch VIDIOC_CREATE_BUFS is used to allocate a new buffer. If
this fails v4l2src falls back to copying buffers.

https://bugzilla.gnome.org/show_bug.cgi?id=699447
2013-05-03 11:18:04 +02:00
Michael Olbrich
eebe5fc70d v4l2: fix and cleanup VIDIOC_EXPBUF handling
clear the struct, and provide a correct error message

https://bugzilla.gnome.org/show_bug.cgi?id=699337
2013-05-01 15:40:55 +02:00
Philipp Zabel
4d3f6850ca v4l2: handle return value -ENOTTY for unimplemented VIDIOC_G_PARM
Newer kernels return -ENOTTY, older kernels return -EINVAL if the ioctl
is not implemented. With this patch, GStreamer handles both cases.

https://bugzilla.gnome.org/show_bug.cgi?id=698825
2013-05-01 15:34:50 +02:00
Michael Olbrich
bf3a0b7e37 v4l2: fix broken boolean expression to detect non-frame buffers
https://bugzilla.gnome.org/show_bug.cgi?id=699294
2013-04-30 11:47:09 +02:00
Michael Olbrich
d4126ff986 v4l2: also poll for output devices
Note that the V4L2 API defines that for output devices POLLOUT
indicates that a buffer is ready to be dequeued.

https://bugzilla.gnome.org/show_bug.cgi?id=698992
2013-04-27 09:31:29 +01:00
Philipp Zabel
fd0123800c v4l2: fix copying of encoded buffers
The existence of a GstVideoFormatInfo does not guarantee, that
the buffer contains video frames, so the format must be checked.

Also, for encoded buffers the length is variable and must be set.

https://bugzilla.gnome.org/show_bug.cgi?id=698949
2013-04-26 15:36:49 +02:00
Michael Olbrich
3466796f10 v4l2: add support for mpeg4 and H.263
https://bugzilla.gnome.org/show_bug.cgi?id=698826
2013-04-26 14:26:15 +02:00
Philipp Zabel
305023fe9d v4l2: handle ENODATA return value for VIDIOC_ENUMSTD
In kernel v3.7-rc1, VIDIOC_ENUMSTD returns ENODATA if the current input
does not support the STD API.

https://bugzilla.gnome.org/show_bug.cgi?id=698827
2013-04-25 15:40:59 +02:00
Michael Olbrich
2e80c0d2c0 v4l2: bufferpool: reset buffer size in release_buffer
The buffer might still be in use elsewhere when dequeuing buffers for
outputs.

https://bugzilla.gnome.org/show_bug.cgi?id=698822
2013-04-25 12:34:24 +02:00
Michael Olbrich
8f9cc96a69 v4l2: bufferpool: remove unused includes
The hacks that needed these are long gone.

https://bugzilla.gnome.org/show_bug.cgi?id=698821
2013-04-25 11:30:48 +01:00
Diogo Carbonera Luvizon
0a7d4afc1b v4l2: save the format correctly
If TRY_FMT is not implemented,  gst_v4l2_object_get_nearest_size will
use S_FMT and will change the device's operation mode. To save the
old device mode we need to set the type field or else it will fail
to save the previous format.

Fixes https://bugzilla.gnome.org/show_bug.cgi?id=685209
2013-04-24 16:00:24 +02:00
Olivier Crête
b5a9ed20e1 v4l2src: Disable renegotiation in the negotiate method
This way, we don't block the initial negotiation.

Thanks to Jeremy Whiting for doing all the testing.

https://bugzilla.gnome.org/show_bug.cgi?id=695981
2013-04-17 17:04:11 -04:00
Olivier Crête
3340baa374 Revert "v4l2: disable renegotiation"
This reverts commit d1b26e1d59.

This causes the initial negotiation to never happen if a reconfigure
event is received after gst_base_src_start_complete() but before the loop
starts.

https://bugzilla.gnome.org/show_bug.cgi?id=695981
2013-04-17 17:02:08 -04:00
Sebastian Dröge
b0b0557c48 gst: Add better support for static plugins 2013-04-15 15:54:11 +02:00
Wim Taymans
14300e5805 v4l2: free all queued buffers
Don't just loop over the first num_queued buffers but loop over
all the buffers and check if they need to be freed. It is possible that
not all buffers are queued and then the entry in our array will be NULL.
Those buffers that are not queued were freed in stop().

Fixes https://bugzilla.gnome.org/show_bug.cgi?id=696651
2013-04-03 11:14:41 +02:00
Wim Taymans
0dfc88d893 v4l2: improve debug 2013-04-03 11:14:41 +02:00
Tim-Philipp Müller
60302a57a4 v4l2: fix printf format compiler warning in debug message 2013-04-02 23:36:22 +01:00
Bastien Nocera
8e633d2059 v4l2: fix compilation against newer kernel headers as on FC19 2013-03-18 14:59:35 +00:00
Benjamin Gaignard
e29ab42922 v4l2: Add support of dmabuf
v4l has add a new IOCTL to export a buffer by using dmabuf.
This patch allow to use this new IOTCL if it has been defined in videodev2.h
I introduce a new IO mode (GST_V4L2_IO_DMABUF) to enable this way of working.

https://bugzilla.gnome.org/show_bug.cgi?id=693826
2013-02-19 12:57:07 +01:00
Benjamin Gaignard
59e583b59f v4l2: don't check stride for encoded formats
Don't try to check the stride for encoded formats. Some drivers output
something != 0 and then we don't want to fail on that.
2013-02-15 16:23:23 +01:00
Sjoerd Simons
00eed11d6a v4l2: Re-enable prepare-format emission
With the port to gstreamer 1.0 the prepare-format signal stopped being
emitted. Start emitting this again for use in uvch264src.  While there
change the emission to include the caps for extra flexibility instead of
fource, width, height.

https://bugzilla.gnome.org/show_bug.cgi?id=692042
2013-01-23 21:06:16 -05:00
Robert Krakora
ad2f74afbc v4l2: Also handle the new ENOENT return value of VIDIOC_QUERYCTRL
https://bugzilla.gnome.org/show_bug.cgi?id=691098
2013-01-04 10:04:26 +01:00
Koop Mast
0bcf8ecd93 v4l2: Teach where the videodev2.h header lives on freebsd.
https://bugzilla.gnome.org/show_bug.cgi?id=690233
2012-12-17 11:17:01 +01:00
Tim-Philipp Müller
527c218533 v4l2src: link against -lrt for clock_gettime()
Need to explicitly link against -lrt for clock_gettime(), which
we don't get in the libs any more, because core moved the
gmodule-no-export-2.0 bit into Requires.Private.

Not required for newer glibc, but for older ones, so check for that.
2012-11-30 23:18:12 +00:00
Tim-Philipp Müller
e672123621 v4l2: remove unused define 2012-11-25 16:05:11 +00:00
Tim-Philipp Müller
230cf41cc9 Fix FSF address
https://bugzilla.gnome.org/show_bug.cgi?id=687520
2012-11-04 00:07:18 +00:00
Michael Smith
b04b1b5089 meta info: threadsafe registration using g_once 2012-10-03 10:51:45 -07:00
Sjoerd Simons
5d1ed54814 v4l2src: handle latency query before setting up the bufferpool
Fixes crash if no bufferpool is set up yet.

https://bugzilla.gnome.org/show_bug.cgi?id=684430
2012-09-20 13:49:42 +01:00
Wim Taymans
e6ce9c226f v4l2: remove unused properties 2012-09-13 10:56:27 +02:00
Wim Taymans
d1b26e1d59 v4l2: disable renegotiation
We can't yet wait for the bufferpool to DRAIN before starting renegotiation so
disable it for now.

Fixes https://bugzilla.gnome.org/show_bug.cgi?id=682770
2012-09-11 15:41:10 +02:00
Wim Taymans
d154743949 v4l2: remove unused code. 2012-09-06 10:43:52 +02:00
Tim-Philipp Müller
4bb52bbadf docs: gst-launch -> gst-launch-1.0 and ffmpegcolorspace -> videoconvert 2012-08-27 21:20:30 +01:00
Huacai Chen
05d4f81834 v4l2: make gst_v4l2_fill_lists() adapt to kernel 3.3+
When do v4l2_ioctl() with VIDIOC_ENUMINPUT fails on some devices,
kernels before 3.3.0 return EINVAL, but newer kernels return ENOTTY.
This patch make those devices work well on kernel 3.3+.

Related kernel commit:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commit;h=07d106d0a33d6063d2061305903deb02489eba20

Signed-off-by: Huacai Chen <chenhc@lemote.com>
Signed-off-by: Rui Wang <wangr@lemote.com>
Signed-off-by: Jie Chen <chenj@lemote.com>
2012-08-21 23:09:33 +01:00
Matthias Clasen
9f2aa8d47f v4l2: fix build with recent kernels, the v4l2_buffer input field was removed
This was unused apparently and removed in the kernel in commit:

 From 2b719d7baf490e24ce7d817c6337b7c87fda84c1 Mon Sep 17 00:00:00 2001
 From: Sakari Ailus <sakari.ailus@iki.fi>
 Date: Wed, 2 May 2012 09:40:03 -0300
 Subject: [PATCH] [media] v4l: drop v4l2_buffer.input and V4L2_BUF_FLAG_INPUT

 Remove input field in struct v4l2_buffer and flag V4L2_BUF_FLAG_INPUT which
 tells the former is valid. The flag is used by no driver currently.

https://bugzilla.gnome.org/show_bug.cgi?id=681491

Conflicts:
	sys/v4l2/gstv4l2bufferpool.c
2012-08-09 08:40:33 +01:00
Tim-Philipp Müller
787c314ec3 Silence some 'variable may be used uninitialized' compiler warnings
When compiling with -DG_DISABLE_ASSERT
2012-08-08 11:31:59 +01:00
Wim Taymans
2052cabdc4 fix for allocator API changes 2012-07-09 16:28:41 +02:00
Wim Taymans
16b8e2d171 update for query api changes 2012-07-06 11:50:50 +02:00
Wim Taymans
8eadb9c12c update for query api changes 2012-07-06 11:26:46 +02:00
Wim Taymans
77813e67e1 update for allocation query changes 2012-07-06 11:05:11 +02:00
Wim Taymans
56690cf021 v4l2: improve debug 2012-06-26 13:19:02 +02:00
Wim Taymans
77f33e591f Revert "v4l2: free kernel buffers before allocating new ones"
This reverts commit 1b09bc609a.

Seems to make libv4l2 complain, maybe because we call REQBUFS with 0 buffers
before we allocated buffers.
2012-06-26 13:02:13 +02:00
Wim Taymans
1b09bc609a v4l2: free kernel buffers before allocating new ones
See https://bugzilla.gnome.org/show_bug.cgi?id=670257
2012-06-26 12:07:47 +02:00
Wim Taymans
9fd4af2164 v4l2src: improve debug 2012-06-26 12:07:29 +02:00
Wim Taymans
f4e3ae65ab v4l2: setup strides and offsets for all planes 2012-06-26 11:14:59 +02:00
Hans de Goede
b9676944bb v4l2object: Don't probe UVC devices for being interlaced
UVC devices are never interlaced, and doing VIDIOC_TRY_FMT on them
causes expensive and slow USB IO, so don't probe them for interlaced.

This shaves 2 seconds of the startup time of cheese with a Logitech
Webcam Pro 9000.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>

Fixes https://bugzilla.gnome.org/show_bug.cgi?id=677722
2012-06-11 11:23:34 +02:00
Michael Jones
fa95cec825 v4l2: add missing G_END_DECLS
G_BEGIN_DECLS didn't have matching G_END_DECLS

https://bugzilla.gnome.org/show_bug.cgi?id=677165
2012-05-31 13:13:45 +02:00
Peter Seiderer
65a28698db v4l2src: fix v4l2_std_id logging
input.std is of type v4l2_std_id which is defined as 64-bit unsigned integer.
Casting to uint means the higher bits, wich are used for the private video
standards of the TI video capture/display driver for example, are lost.
2012-05-09 15:12:28 +01:00
Sebastian Dröge
982148c07c v4l2src: Update for basesrc API changes 2012-05-01 13:33:46 +02:00
Wim Taymans
a473750350 v4l2: improve timestamp code
Sample the pipeline clock and device clock closer to eachother to reduce jitter.
Don't subtract the frame duration from the timestamp when we can use the device
timestamps.
Assume a delay of 1 frame in read-write mode.
2012-04-25 09:41:46 +02:00
Wim Taymans
46045316ce v4l2: use driver timestamps
Use the drive timestamps for timestamping outgoing buffers.
2012-04-24 12:37:33 +02:00
Wim Taymans
eecb9a96a6 v4l2: Improve buffer management
Query the amount of available buffers when doing set_config(). This allows us to
configure the parent bufferpool with the number of buffers to preallocate.
Keep track of the provided allocator and use it when we need to allocate a
buffer in RW mode.
When we are can not allocate the requested max_buffers amount of buffers, make
sure we keep 2 buffers around in the pool and copy them into an output buffer.
This makes sure that we always have a buffer to capture into. We also need to
detect those copied buffers and unref them when they return to the pool.
2012-04-23 18:10:33 +02:00
Wim Taymans
713ddbf541 v4l2: free the queued buffers
Only free the queued buffers that we keep track of in our buffer array. for rw
io-mode, we do allocate buffers but we don't keep track of them in the buffer
array.
2012-04-23 18:10:33 +02:00
Wim Taymans
5d7d4e0d9b v4l2: mark memory as no-share
We don't support sharing our mmapped memory so mark it as NO_SHARE.
2012-04-23 18:10:33 +02:00
Wim Taymans
9fe11d0d11 v4l2: remove old unused file 2012-04-23 18:10:33 +02:00
Wim Taymans
37e7a41771 v4l2: remove unused function 2012-04-23 18:10:33 +02:00
Mart Raudsepp
8719375be7 docs: Add Since tag for new GstV4l2Src::prepare-format signal 2012-04-23 11:24:19 +02:00
Wim Taymans
f08bab4e86 v4l2: update for video api change 2012-04-19 14:16:01 +02:00
Wim Taymans
85d4dde9d1 v4l2: fix compilation on older v4l2
Fix compilation on systems where the H264 format is not defined.
2012-04-19 12:38:58 +02:00
Sebastian Dröge
04b70571e5 video: Update for libgstvideo API changes 2012-04-19 12:20:59 +02:00
Youness Alaoui
09dabd4be6 v4l2src: Allow mpeg-ts cameras to negociate format
This removes an ugly hack until the reason for the hack can be documented
2012-04-19 10:31:18 +02:00
Sebastian Dröge
e7a76badc5 v4l2src: Fix merge 2012-04-19 09:50:25 +02:00
Sebastian Dröge
deb7cdcdda v4l2src: Rename pre-set-format signal to prepare-format 2012-04-19 09:50:01 +02:00
Youness Alaoui
a63451ecd7 v4l2src: Add H264 encoded stream support to the caps
This is not enough to properly support H264 cameras, but it will
allow an H264 stream to be generated by v4l2src using the default
settings of the camera. If used with the pre-set-format signal, the
H264 encoder can be fully configured.

Conflicts:

	sys/v4l2/gstv4l2object.c
2012-04-19 09:49:33 +02:00