Commit graph

89 commits

Author SHA1 Message Date
Reynaldo H. Verdejo Pinochet
4b16b16aaf v4l2: use opened device caps instead of physical device ones
The same physical device can export multiple devices. In
this case, the capabilities field now contains a union of
all caps available from all exported V4L2 devices alongside
a V4L2_CAP_DEVICE_CAPS flag that should be used to decide
what capabilities to consider. In our case, we need the
ones from the exported device we are using.

https://bugzilla.gnome.org/show_bug.cgi?id=768195
2016-07-07 17:46:06 -04:00
Nicolas Dufresne
3b5cac3659 v4l2: Add an error return to _try/_set_format
This way one can easily ignore errors. Previously, error were always
posted ont he bus.

https://bugzilla.gnome.org/show_bug.cgi?id=766172
2016-06-07 17:02:43 -04:00
Philipp Zabel
cf29e6c0b7 v4l2: add gst_v4l2_object_probe_caps
Add a variant of gst_v4l2_object_get_caps that bypasses the probed_caps cache.

https://bugzilla.gnome.org/show_bug.cgi?id=733827
2015-11-25 14:32:28 -05:00
Thiago Santos
6cfa6c0da8 v4l2object: add gst_v4l2_object_try_format
Similar to set_format but it uses TRY_FMT instead of S_FMT

https://bugzilla.gnome.org/show_bug.cgi?id=682770
2015-03-13 18:47:55 +00:00
Aurélien Zanelli
600027a1ee v4l2bufferpool: fix import_userptr() in single-planar API when n_planes > 1
In the V4L2 single-planar API, when format is semi-planar/planar,
drivers expect the planes to be contiguous in memory.
So this commit change the way we handle semi-planar/planar format
(n_planes > 1) when we use the single-planar API (group->n_mem == 1).

To check that planes are contiguous and have expected size, ie: no
padding. We test the fact that plane 'i' start address + plane 'i'
expected size equals to plane 'i + 1' start address. If not, we return
in error.

Math are done in bufferpool rather than in allocator because the
former is aware of video info.

https://bugzilla.gnome.org/show_bug.cgi?id=738013
2015-02-25 14:25:01 -05:00
Nicolas Dufresne
43d5a523f1 Revert "v4l2: move vb_queue probing from allocator to v4l2object"
This reverts commit ec6b8b84af.
2014-11-24 10:36:30 -05:00
Benjamin Gaignard
ec6b8b84af v4l2: move vb_queue probing from allocator to v4l2object
The goal is to make those information available in v4l2_object
to be able later to select the best allocation method for the pool

https://bugzilla.gnome.org/show_bug.cgi?id=699382
2014-11-21 11:28:18 -05:00
Nicolas Dufresne
743c6a4475 v4l2: Merge min_buffers_for* variable into one
Reuse the same min_buffers variable for both capture and output, this
reduce the length of lines and make the code more readable.

https://bugzilla.gnome.org/show_bug.cgi?id=736072
2014-09-09 18:39:23 -04:00
Aurélien Zanelli
3afec4dd01 v4l2: set min_latency for output device according to required minimum number of buffers
Since we can get the minimum number of buffers needed by an output
device to work, use it to set min_latency which will determine how many
buffers are queued.

https://bugzilla.gnome.org/show_bug.cgi?id=736072
2014-09-09 18:39:23 -04:00
Nicolas Dufresne
e2fd7e274e v4l2bufferpool: Port to bufferpool flush_start/stop method
Port the buffer pool to use the new flush_start/flush_stop virtual
methods added to GstBufferPool.

https://bugzilla.gnome.org/show_bug.cgi?id=727611
2014-05-26 13:43:30 -04:00
Nicolas Dufresne
2e89f4ecff Revert "v4l2bufferpool: Port to bufferpool flush_start/stop method"
This reverts commit 2e0fb42e86.

Conflicts:
	sys/v4l2/gstv4l2allocator.c
	sys/v4l2/gstv4l2bufferpool.c
	sys/v4l2/gstv4l2videodec.c
2014-05-24 20:00:14 -04:00
Nicolas Dufresne
2e0fb42e86 v4l2bufferpool: Port to bufferpool flush_start/stop method 2014-05-24 15:38:53 -04:00
Nicolas Dufresne
077fcbcf15 v4l2: Cleanup M2M properties
M2M devices were sharing the same properties as src and sink. Most of
these made no sense. This patch reduces the number of propeties and
makes io-mode clearer by having capture-io-mode and output-io-mode. This
also accidently fixed a bug in gstv4l2transform io-mode code, where the
capture io-mode could not be set.

https://bugzilla.gnome.org/show_bug.cgi?id=729591
2014-05-15 19:06:52 -04:00
Nicolas Dufresne
82a806e63b v4l2: Replace miss-use of crop meta in favour of proper offset
This moves away from copying information and store everything inside
the GstVideoInfo structure. The alignement exposed by v4l2 api
is now handled using proper offset.
2014-05-08 15:56:37 -04:00
Nicolas Dufresne
3e4ed47956 v4l2object: Style fix 2014-05-08 15:56:37 -04:00
Nicolas Dufresne
92bdd596f2 v4l2: Add DMABUF and USERPTR importation 2014-05-08 15:56:36 -04:00
Nicolas Dufresne
eee61f39e5 v4l2: Introduce DMABUF_IMPORT IO mode 2014-05-08 15:56:36 -04:00
Nicolas Dufresne
5a61fb7f25 v4l2object: Set minimum buffers to 2
All the element requires at least two buffers. This is not used for RW mode.
2014-05-08 15:56:36 -04:00
Nicolas Dufresne
3393083497 v4l2object: Remove unused MAX_BUFFERS define 2014-05-08 15:56:36 -04:00
Nicolas Dufresne
0488984f82 v4l2: Move propose allocation to v4l2object 2014-05-08 15:56:36 -04:00
Nicolas Dufresne
d4c24cc52f v4l2transform: Setup cropping if needed 2014-05-08 15:56:36 -04:00
Nicolas Dufresne
0028de808b v4l2: Probe for CREATE_BUFS in order to correctly set pool min/max
In order to correctly set the pool min/max, we need to probe for CREATE_BUFS
ioctl. This can be done as soon as the format has been negotiated using a
count of 0.
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
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
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
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
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
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
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
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
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
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
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
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
Olivier Crête
48caa1712a v4l2: De-duplicate caps probing between src and sink 2013-08-19 13:08:18 -04:00
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
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
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
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
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
230cf41cc9 Fix FSF address
https://bugzilla.gnome.org/show_bug.cgi?id=687520
2012-11-04 00:07:18 +00:00
Wim Taymans
e6ce9c226f v4l2: remove unused properties 2012-09-13 10:56:27 +02:00
Wim Taymans
4b8975f867 update for removed property probe 2011-12-21 11:59:46 +01:00
Stefan Sauer
fb162c8eb4 controller: port to new controller location and api 2011-11-04 20:15:48 +01:00
Wim Taymans
add1cbdbd8 v4l2: activate the pool in fallback
When nobody is using our pool, activate it ourselves.
Avoid leaking the buffer array.
Set default pool configuration with caps.
Don't keep current_caps, core does that for us now.
2011-08-04 12:56:47 +01:00