Commit graph

1131 commits

Author SHA1 Message Date
Nicolas Dufresne
27cdcaf363 v4l2: Add missing no-inst header 2017-07-27 13:51:25 -04:00
Nicolas Dufresne
c5d0264bc9 v4l2: Add interface for MPEG4 encoding 2017-07-27 12:12:00 -04:00
Nicolas Dufresne
1762c2e713 v4l2: Ignore register issue and keep probing
Don't stop registering the other dynamic plugins if one registration
fails.
2017-07-27 12:12:00 -04:00
Nicolas Dufresne
6fa565247d v4l2: Update external files with latest
This is copied from the linux kernel with only some include changes so
it works outside the kernel headers.
2017-07-26 20:36:15 -04:00
Nicolas Dufresne
5a6fe4ed29 v4l2: Fix compilation without libv4l2 2017-07-24 16:45:40 -04:00
Nicolas Dufresne
2ee90e2b39 v4l2: Keep ref to element in allocator/pool
Removes the FIXME/Question in the buffer pool and add a ref to the
element in the GstAllocator too. This ref is strictly required to keep
the GstV4l2Object structure around.
2017-07-24 16:27:36 -04:00
Nicolas Dufresne
33f508d508 v4l2object: Removed unused members 2017-07-24 14:27:05 -04:00
Nicolas Dufresne
31d8a1d929 v4l2: Add run-time environment to enable libv4l2
The library has started preventing a lot of interesting use cases,
like CREATE_BUFS, DMABuf, usage of TRY_FMT. As the libv4l2 is totally
inactive and not maintained, we decided to disable it. As a convenience
we added a run-time environment that let you enable it for testing.

  GST_V4L2_USE_LIBV4L2=1

This of course only works if you have enabled libv4l2 at build time.
2017-07-24 14:19:02 -04:00
Nicolas Dufresne
4bcec1b190 v4l2object: Fix colorimetry validation
While not documented, gst_video_colorimetry_matches() only accepts well
known names. Looking at the code and unit test, this seems to be on
purpose, so fixing by parsing the string and compating the colorimetry
structures.
2017-07-21 23:34:59 -04:00
Nicolas Dufresne
ef633e28f8 v4l2encoder: Fix negotiation error handling
The subclass negotiated function will call set_format, if that fails the
pool will not be created. We ended up with an assertion.

GStreamer-CRITICAL **: gst_buffer_pool_set_active: assertion 'GST_IS_BUFFER_POOL (pool)' failed
2017-07-21 15:40:24 -04:00
Nicolas Dufresne
b3e089d415 v4l2src: Speedup camera startup by skipping try_fmt
In this commit, we enabled skip_try_fmt_probes quirk in order to speed
up the start which is known to be disastrously slow with certain USB
cameras.

This has the side effect that we needed to rewrite the entire
negotiation process in a way that we iterate over the possible caps
until we find one that works.

The new negotiation method consist of extracting a preferred structure
from the peer caps and using this to fixate and sort the caps. To
reflect the old behaviour, we sort all resolution strictly bigger
to the preferred one with the closes one first. The rest is appended,
keeping the same order. We then normalize the caps in case there was
some list of interlace-mode or colorimetry left. We finally iterate
over all fixed caps and try it. 99% of the time, the first or the
second one should work, whit the result of a single S_FMT being issues.

From there, it will be relatively easy to introduce new negotiation
algorithm. The current algorithm is made for optimal image quality
with a scaling sink that sets it's window resolution as preference.
This the case if for:

  v4l2src ! videoconvert ! videoscale ! ximagesink

Other strategy would be needed to optimize for non-scaling sink like
ximagesink or kmssink when the driver does not scale.

https://bugzilla.gnome.org/show_bug.cgi?id=785156
2017-07-21 15:29:10 -04:00
Nicolas Dufresne
cae0b9a2d2 v4l2object: Introduce quirk to skip slow probes
skip_try_fmt_probes quirk is set, V4L2 object will not probe for
interlace-mode and colorimetry to avoid relying on try_fmt. This quirk
will be used by v4l2src to avoid desastrous startup time with slow
USB webcams.

When this quirk is enabled, caller will have to iterate over the
negotiated caps as it may contains unsupported formats. If the peer
didn't choose a specific interlace-mode, or colorimetry, the value
chosen by the driver is set into the caps. For this reason, when this
mode is enabled, gst_v4l2_object_set_format() will require writable
caps.

https://bugzilla.gnome.org/show_bug.cgi?id=785156
2017-07-21 15:29:10 -04:00
Nicolas Dufresne
7d3b2628df v4l2object: always set the GstV4l2Error on error
Some of the error case were conditional to using try_fmt or not.
This is slightly unexpected, always set the error so the caller
can decide.

https://bugzilla.gnome.org/show_bug.cgi?id=785156
2017-07-21 15:29:10 -04:00
Nicolas Dufresne
059ccf9749 v4l2object: Minor style fix and useful trace
https://bugzilla.gnome.org/show_bug.cgi?id=785156
2017-07-21 15:29:10 -04:00
Nicolas Dufresne
c00d4cae3c v4l2object: Fix try/s_fmt errors
According to the spec,TRY_FMT cannot return EBUSY, though it can
return EINVAL if it was not possible to update the format to
something supported.

https://bugzilla.gnome.org/show_bug.cgi?id=785156
2017-07-21 15:29:10 -04:00
Nicolas Dufresne
558e9f4e57 v4l2object: Validate colorimetry in S/TRY_FMT
This is in preparation for removing slow TRY_FMT probes for
colorimetry. As we won't have tried that colorimetry we cannot
assume the driver will accept it.

https://bugzilla.gnome.org/show_bug.cgi?id=785156
2017-07-21 15:29:10 -04:00
Nicolas Dufresne
336c8a7dad v4l2object: Validate field in S/TRY_FMT
This is in preparation from removing the slow TRY_FMT probes for
interlacing. As we won't have tried that interlace-mode already
we need to validate that the driver isn't refusing it.

https://bugzilla.gnome.org/show_bug.cgi?id=785156
2017-07-21 15:29:10 -04:00
Nicolas Dechesne
52c017caca v4l2videodec: add some useful debug messages
Add a couple of useful debug traces , they happened to be useful to
debug/investigate a 4K video playback issue with v4l2, so let's make these
changes more permanent.

Signed-off-by: Nicolas Dechesne <nicolas.dechesne@linaro.org>

https://bugzilla.gnome.org/show_bug.cgi?id=785109
2017-07-19 10:25:11 -04:00
Nicolas Dufresne
6d0a9abdf0 v4l2: Fix 4K colorimetry
Since 1.6, the transfer function for BT2020 has been changed from BT709
to BT2020_12. It's the same function, but with more precision. As a side
effect, the V4L2 colorpsace didn't match GStreamer colorspace. When
GStreamer ended up making a guess, it would not match anything supported
by V4L2 anymore. This this by using BT2020_12 for BT2020 colorspace and
BT2020 transfer function in replacement of BT709 whenever a 4K
resolution is detected.
2017-07-18 12:03:17 -04:00
Nicolas Dufresne
08643993df v4l2object: Only check CROPCAP for par once
The pixel aspect ratio is documented to not change unless the TV
Standard is changed. So this mean that this will be uniform across all
possible format and resolutions.

https://bugzilla.gnome.org/show_bug.cgi?id=784674
2017-07-18 12:03:17 -04:00
Nicolas Dufresne
a6d224521e v4l2: UVC driver is named uvcvideo these days
The quirk to avoid probing interlacing didn't work anymore as the driver
is now name uvcvideo. This should slightly speed up camera startup.
2017-07-17 20:48:28 -04:00
Nicolas Dufresne
83cb5ef957 v4l2object: Remove unused defines 2017-07-17 20:48:28 -04:00
Nicolas Dufresne
9b9cba3798 v4l2: Make gst_v4l2_get_capabilities static
It's not used outside of v4l2_calls.c
2017-07-17 20:48:28 -04:00
Nicolas Dufresne
bec03858fa v4l2: Merge v4l2_calls.h into gstv4l2object.h
First step of a larger cleanup, all function from v4l2_calls are in fact
methods on GstV4l2Object. This split makes the code really confusing.
This also remove no longer unused macros.
2017-07-17 20:48:28 -04:00
Nicolas Dufresne
3bbd43f7eb v4l2object: Trace unknown fourcc as text
This makes it easier to find out what is not supported.
2017-07-14 13:31:30 -04:00
Nicolas Dufresne
06424c438e v4l2: Don't probe for unneeded format
For v4l2videodec/enc, we generate elements per formats, and in
this case we can speed up the start up by only probing the format
we care about.
2017-07-14 13:31:30 -04:00
Nicolas Dufresne
724a3ceec5 v4l2videodec: Implement stable element names
Before that, each m2m node would be wrapped as a single, multi-format
decoder element. As a unique name was needed, we where using the device
name, which changes between re-boots. This led to unpredictable element
names. In this patch, we generate an element per codec, using
v4l2<codec>dec name. If there is multiple decoder for the same format,
the following elements will be named v4l2<node><codec>dec.

https://bugzilla.gnome.org/show_bug.cgi?id=784908
2017-07-14 13:31:30 -04:00
Matt Fischer
52a5658030 v4l2: Block recursive calls to resurect_buffer
When resurrecting a buffer, the subsequent free call can result
in the group-released handler being called again, which causes
a recursive loop.  This patch blocks the signal handler during
the time that it executes, ensuring that the loop will not occur.

https://bugzilla.gnome.org/show_bug.cgi?id=759292
2017-06-29 15:54:42 -04:00
Guillaume Desmottes
47ca2ce499 v4l2: increase by one the number of allocated buffers
Increasing this number fix a buffer starvation problem I'm hitting
with a "v4l2src ! kmssink" pipeline.

kmssink requests 2 buffer as it keeps a reference on the last rendered
one. So we were allocating 3 buffers for the pipeline.
Once the first 2 buffers have been pushed we ended up with:
- one buffer queued in v4l2
- one being pushed
- one kept as last rendered

If this 3rd buffer is released after that v4l2 used the first one to
capture we end up with a buffer starvation problem as no buffer is currently
queued in v4l2 for capture.

Fixing this by adding one extra buffer to the pipeline so when one
buffer is being pushed downstream the other can already be queued to
capture the next frame.

We were already adding 3 buffers if downstream didn't reply to the
allocation query. I reduced this number to 2 to compensate the extra
buffer which is now always added.

https://bugzilla.gnome.org/show_bug.cgi?id=783049
2017-06-29 15:13:18 -04:00
Matt Fischer
e8a4678738 v4l2allocator: Fix memory leak with dmabuf
This patch fixes a memory leak that is caused if the dmabuf file
descriptor dup fails.  Previously, _cleanup_failed_alloc() would
not unref the memory because mems_allocated had not yet been
incremented.

https://bugzilla.gnome.org/show_bug.cgi?id=784302
2017-06-28 17:03:05 -04:00
Nicolas Dufresne
b9532fc6fb v4l2videoenc: Make sure min_buffers is valid
When upstream does no use the v4l2videoenc pool, we need to activate
that internal pool. Though, we relied the driver to provide a minimum
required buffer, which Qualcomm Venus driver don't currently provide.

https://bugzilla.gnome.org/show_bug.cgi?id=783361
2017-06-05 10:55:28 -04:00
Edward Hervey
246f21ac2f v4l2videoenc: Don't leak VideoCodecState
CID #1409852
2017-05-26 17:52:19 +02:00
Nicolas Dufresne
85218c69b9 v4l2videoenc: Remove unused function 2017-05-24 14:19:27 -04:00
Nicolas Dufresne
9f936c9244 v4l2: Don't redefine __bitwise if already set
https://bugzilla.gnome.org/show_bug.cgi?id=728438
2017-05-24 14:00:22 -04:00
Ayaka
27310365d5 v4l2: Add Video Encoder support
This implements H264 encoding support using generic V4L2 interface. It is
reported to work with Samsung MFC driver, IXM.6 CODA driver and
Qualcomm mainline Venus driver. Other platform should be supported as
none of this work is platform specific.

The implementation consist of a GstV4l2VideoEnc base class, which
implements the core streaming functionality. This base class is implemented
by GstV4l2H264Enc class that implements the caps negotiation specific to
H264 profiles and level. This implementation supports hardware with multiple
H264 encoder. Though, to make it simplier to use, the first discovered H264
encoder will be named v4l2h264enc. Other encoder found during discovery will
have a unique name like v4l2video0h264enc.

This work is the combined work of multiple developpers in the last 3
years. Thanks to all of the contributors:

  Ayaka <ayaka@soulik.info>
  Frédéric Sureau <frederic.sureau@vodalys.com>
  Jean-Michel Hautbois <jean-michel.hautbois@veo-labs.com>
  Nicolas Dufresne <nicolas.dufresne@collabora.com>
  Pablo Anton <pablo.anton@vodalys-labs.com>

https://bugzilla.gnome.org/show_bug.cgi?id=728438
2017-05-24 14:00:22 -04:00
Nicolas Dufresne
7dc57e381b v4l2videodec: Remove unused forward declaration
https://bugzilla.gnome.org/show_bug.cgi?id=728438
2017-05-24 14:00:22 -04:00
Ayaka
17e52f6ac2 v4l2pool: Fix wrong error message
https://bugzilla.gnome.org/show_bug.cgi?id=728438
2017-05-24 14:00:22 -04:00
Ayaka
342de49bf6 v4l2: increase pre-allocated encoded buffer size
As of today, the MFC encoder often need to exceed that 1 MB
size for encoded buffer we fixed earlier for decoding.

https://bugzilla.gnome.org/show_bug.cgi?id=728438
2017-05-24 14:00:22 -04:00
Sebastian Dröge
2c6016667b gst: Clear floating flag in constructor of all GstObject subclasses that are not owned by any parent
https://bugzilla.gnome.org/show_bug.cgi?id=743062
2017-05-17 10:41:01 +03:00
Nicolas Dufresne
b68d936ae0 Remove plugin specific static build option
Static and dynamic plugins now have the same interface. The standard
--enable-static/--enable-shared toggle are sufficient.
2017-05-16 14:41:19 -04:00
Todor Tomov
081bae2849 v4l2object: Copy timestamp when importing buffers
This is needed for V4L2_OUTPUT interface, and is harmless of
V4L2_CAPTURE interfaces. This will fix timestamp in cases like:

  v4l2src io-mode=dmabuf ! v4l2videoNenc output-io-mode=dmabuf-import !  ...

Same apply for userptr.

https://bugzilla.gnome.org/show_bug.cgi?id=781119
2017-04-10 12:49:39 -04:00
Thibault Saunier
7b7a809818 v4l2dec: Fix race when going from PAUSED to READY
Running `gst-validate-launcher -t validate.file.playback.change_state_intensive.vorbis_vp8_1_webm`
on odroid XU4 (s5p-mfc v4l2 driver) often leads to:

  ERROR:../subprojects/gst-plugins-good/sys/v4l2/gstv4l2videodec.c:215:gst_v4l2_video_dec_stop: assertion failed: (g_atomic_int_get (&self->processing) == FALSE)

This happens when the following race happens:

- T0: Main thread
- T1: Upstream streaming thread
- T2. v4l2dec processing thread)

[The decoder is in PAUSED state]

T0. The validate scenario runs `Executing (36/40) set-state: state=null repeat=40`
T1- The decoder handles a frame
T2- A decoded frame is push downstream
T2- Downstream returns FLUSHING as it is already flushing changing state
T2- The decoder stops its processing thread and sets `->processing = FALSE`
T1- The decoder handles another frame
T1- `->process` is FALSE so the decoder restarts its streaming thread
T0- In v4l2dec-> stop the processing thread is stopped
NOTE: At this point the processing thread loop never started.
T0- assertion failed: (g_atomic_int_get (&self->processing) == FALSE)

Here I am removing the whole ->processing logic to base it all on the
GstTask state to avoid duplicating the knowledge.

https://bugzilla.gnome.org/show_bug.cgi?id=778830
2017-04-07 11:31:03 -03:00
Nicolas Dufresne
3342d86d9b v4l2videodec: Fix 32bit only printf format
The previous patch was using %llu for 64bits printf, which is 32bit
specific. We also trace the latency in time human readable form now.
2017-04-05 09:46:31 -04:00
Philipp Zabel
ce5c0b8f92 v4l2object: set streamparm for outputs that support it
Without a specified framerate from the sink, the decoder frame interval
should be set using the framerate of the encoded video stream.
Therefore, the v4l2object should be able to change the framerate on the
output if the V4L2 device accepts it.

This is also necessary for mem2mem encoders so that their bitrate
calculation code may work correctly and they may report the correct
frame duration on the capture queue.

https://bugzilla.gnome.org/show_bug.cgi?id=779466
2017-04-05 09:26:05 -04:00
Philipp Zabel
1d43f6d852 v4l2videodec: only set latency if the frame duration is valid
If the duration of the v4l2object is GST_CLOCK_TIME_NONE, because the
sink did not specify a framerate in the caps and the driver accepts the
framerate, the decoder element uses GST_CLOCK_TIME_NONE to calculate and
set the element latency.

While this is a bug of the capture driver, the decoder element should
not use the invalid duration to calculate a latency, but print a warning
instead.

https://bugzilla.gnome.org/show_bug.cgi?id=779466
2017-04-05 09:20:19 -04:00
Olivier Crête
b30dee98e6 v4l2sink: Block in preroll_wait on unlock
The correct behaviour of anything stuck in the ->render() function
between ->unlock() and ->unlock_stop() is to call
gst_base_sink_wait_preroll() and only return an error if this returns an
error, otherwise, it must continue where it left off!

https://bugzilla.gnome.org/show_bug.cgi?id=774945
2017-04-05 09:05:03 -04:00
Carlos Rafael Giani
79d9cd44b6 v4l2object: Also add videometa if there is padding to the right and bottom
https://bugzilla.gnome.org/show_bug.cgi?id=780478
2017-03-24 13:57:10 -04:00
Nicolas Dufresne
37c491ceff v4l2: Fix meson plugin shared object name
It didn't match between AutoMake and Meson, and the Meson name
didn't math the plugin name (video4linux2).
2017-03-17 20:59:44 -04:00
Olivier Crête
dac03fa87c v4l2: Remove unused macro 2017-03-14 16:38:02 -04:00
Olivier Crête
75d2a57783 v4l2: Remove unused definitions 2017-03-14 16:35:25 -04:00
Edgard Lima
8635258046 Update Edgard Lima's email
https://bugzilla.gnome.org/show_bug.cgi?id=779230
2017-02-27 00:34:19 +00:00
Nicolas Dufresne
0b83e4ceaf v4l2object: Update image size when extrapolating
Update the image size according the amount of data we are going to
read/write. This workaround bugs in driver where the sizeimage provided
by TRY/S_FMT represent the buffer length (maximum size) rather then the expected
bytesused (buffer size).

https://bugzilla.gnome.org/show_bug.cgi?id=775564
2017-02-22 03:53:30 -05:00
Reynaldo H. Verdejo Pinochet
b460f18f17 v4l2: fix typo in _acquire_format() error messages
Fixes:

https://bugzilla.gnome.org/show_bug.cgi?id=778815
2017-02-21 10:17:56 -08:00
Juan Pablo Ugarte
b6723ecd3c v4l2object: mark singleton caps as "may be leaked" objects.
Set MAY_BE_LEAKED flag on static pads returned by gst_v4l2_object_get_*_caps()
functions. Made functions thread safe by using g_once_init[enter|leave]
funtions.

https://bugzilla.gnome.org/show_bug.cgi?id=778453
2017-02-10 16:35:53 -05:00
Jean-Christophe Trotin
7f763f2710 v4l2allocator: reference memory before the buffer is queued
In gst_v4l2_allocator_qbuf(), the memory is referenced after the
buffer is queued. Once queued (VIDIOC_QBUF), the buffer might be handled
by the V4L2 driver (e.g. decoded) and dequeued (gst_v4l2_allocator_dqbuf),
through a different thread, before the memory is referenced (gst_memory_ref).
In this case, in gst_v4l2_allocator_dqbuf(), the memory is unreferenced
(gst_memory_unref) before having been referenced: the memory refcount
reaches 0, and the memory is freed.
So, to avoid this crossing case, in gst_v4l2_allocator_qbuf(), the
memory shall be referenced before the buffer is queued.

https://bugzilla.gnome.org/show_bug.cgi?id=777399
2017-01-24 11:30:57 -05:00
Enrico Jorns
eb25b058f9 v4l2: Remove usage and definition of LOG_CAPS macro
Unlike former definitions of LOG_CAPS, the current implementation simply
expands to GST_DEBUG_OBJECT. The LOG_CAPS macro is rarely used and most
uses duplicate already existing GST_DEBUG_OBJECT lines. Therefore, the
caps are often printed twice which unnecessarily clutters the debug log.

Replace LOG_CAPS calls with GST_DEBUG_OBJECT, remove LOG_CAPS calls, and
delete the definition of LOG_CAPS.

https://bugzilla.gnome.org/show_bug.cgi?id=776899
2017-01-16 10:29:47 -05:00
Jean-Christophe Trotin
1c2e2d83ce v4l2bufferpool: remove duplicated line of code
https://bugzilla.gnome.org/show_bug.cgi?id=777330
2017-01-16 10:19:34 -05:00
Jean-Christophe Trotin
2b80cd14b0 v4l2allocator: fix memory type in allocator probe
The buffer memory type provided to the VIDIOC_CREATE_BUFS ioctl shall
be set with the value ("memory") given as input parameter of the
gst_v4l2_allocator_probe() function.

https://bugzilla.gnome.org/show_bug.cgi?id=777327
2017-01-16 10:19:18 -05:00
Tim-Philipp Müller
d7b2820b73 Fix indentation 2017-01-09 19:05:10 +00:00
Víctor Manuel Jáquez Leal
6ec3cc70b2 v4l2object: Don't check size in a non-list value
After commit 1ea9735a I see these error while using the webcam
integrated in my laptop:

GStreamer-CRITICAL **: gst_value_list_get_size: assertion 'GST_VALUE_HOLDS_LIST (value)' failed

The issue is gst_v4l2src_value_simplify() was doing its job of
generating a single value, rather than the original list. That why,
when getting the list size, a critical warning was raised.

This patch takes advantage of the compiler optimizations to verify
first if the list was simplified, thus use it directly, otherwise,
if it is a list, verify its size.

https://bugzilla.gnome.org/show_bug.cgi?id=776106
2016-12-14 19:22:36 +01:00
Arun Raghavan
1ea9735afb v4l2object: Don't set empty interlace-mode list
If for some reason we fail to probe formats (all try_fmt calls fail, for
example), this is not a critical error, but we end up with an empty list
of interlace modes. This causes all subsequent negotiation to fail.

This patch fixes interlace-mode setting to be skipped if we failed to
detect any.

https://bugzilla.gnome.org/show_bug.cgi?id=775702
2016-12-08 10:13:39 +05:30
Philipp Zabel
86f243bb12 gstv4l2bufferpool: lock flush_stop against regular qbuf
These can be called from different threads and both manipulate the
pool->buffers array. Lock them properly and let flush_stop move the
array contents into a temporary array on the stack to avoid having
to call release_buffer under the object lock.

https://bugzilla.gnome.org/show_bug.cgi?id=775015
2016-11-24 11:47:07 -05:00
Philipp Zabel
6b5807654b gstv4l2bufferpool: remove critical error message when process is called on an inactive pool
If the pool is inactive, it is guaranteed to also be flushing, so the
following check will return GST_FLOW_FLUSHING anyway.
This can happen if a v4l2src is blocking on DQBUF in create and is sent
an EOS event on another thread. In that case the pool is set to
flushing/inactive without locking, the v4l2src is unblocked, and may
call pool_process with a valid buffer on the already inactive pool.

https://bugzilla.gnome.org/show_bug.cgi?id=775014
2016-11-24 11:47:07 -05:00
Philipp Zabel
65826f819a v4l2src: release buffer if create fails
gst_base_src_get_range does not expect a buffer to be returned in
the error case, so we are leaking a reference here if create fails.

https://bugzilla.gnome.org/show_bug.cgi?id=775014
2016-11-24 11:47:07 -05:00
William Manley
56b1d088a9 v4l2: Warn, don't assert if v4l gives us a buffer with a too large size
I've seen problems where the `bytesused` field of `v4l2_buffer` would be
a silly number causing the later call to:

    gst_memory_resize (group->mem[i], 0, group->planes[i].bytesused);

to result in this error to be printed:

    (pulsevideo:11): GStreamer-CRITICAL **: gst_memory_resize: assertion 'size + mem->offset + offset <= mem->maxsize' failed

besides causing who-knows what other problems.

We make the assumption that this buffer has still been dequeued correctly
so just clamp to a valid size so downstream elements won't end up in
undefined behaviour.

The invalid `v4l2_buffer` I saw from my capture device was:

    buffer = {
      index = 0,
      type = 1,
      bytesused = 534748928, // <- Invalid
      flags = 8260, // V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC | V4L2_BUF_FLAG_ERROR | V4L2_BUF_FLAG_DONE
      field = 01330, // <- Invalid
      timestamp = {
        tv_sec = 0,
        tv_usec = 0
      },
      timecode = {
        type = 0,
        flags = 0,
        frames = 0 '\000',
        seconds = 0 '\000',
        minutes = 0 '\000',
        hours = 0 '\000',
        userbits = "\000\000\000"
      },
      sequence = 0,
      memory = 2,
      m = {
        offset = 3537219584,
        userptr = 140706665836544, // Could be nonsense, not sure
        planes = 0x7ff8d2d5b000,
        fd = -757747712
      },
      length = 2764800,
      reserved2 = 0,
      reserved = 0
    }

This is from gdb with my own annotations added.

This was with gst-plugins-good 1.8.1, a Magewell XI100DUSB-HDMI video
capture device and kernel 3.13 using a dodgy HDMI cable which is great at
breaking HDMI capture devices.  I'm using io-mode=userptr and have built
gst-plugins-good without libv4l.

https://bugzilla.gnome.org/show_bug.cgi?id=769765
2016-11-01 20:12:56 +02:00
Tobias Schneider
932adb1968 v4l2object: fix extra-controls leak
Gst struct v4l2object->extra_controls is created if user sets appropriate
option but it is not freed on destruction of v4l2object.

https://bugzilla.gnome.org/show_bug.cgi?id=773580
2016-10-31 12:06:27 -04:00
Nirbheek Chauhan
b09f478e80 Add support for Meson as alternative/parallel build system
https://github.com/mesonbuild/meson

With contributions from:

Tim-Philipp Müller <tim@centricular.com>
Jussi Pakkanen <jpakkane@gmail.com> (original port)

Highlights of the features provided are:
* Faster builds on Linux (~40-50% faster)
* The ability to build with MSVC on Windows
* Generate Visual Studio project files
* Generate XCode project files
* Much faster builds on Windows (on-par with Linux)
* Seriously fast configure and building on embedded

... and many more. For more details see:

http://blog.nirbheek.in/2016/05/gstreamer-and-meson-new-hope.html
http://blog.nirbheek.in/2016/07/building-and-developing-gstreamer-using.html

Building with Meson should work on both Linux and Windows, but may
need a few more tweaks on other operating systems.
2016-08-20 11:21:12 +01:00
Nirbheek Chauhan
4048a4e137 v4l2: consistently check #ifdef HAVE_GUDEV instead of #if
Both work with autotools but they definitely don't mean the same thing, cause
problems with other build systems, and are bad form. Existence should always be
checked with #ifdef or #if defined.
2016-08-18 20:20:20 +01:00
Nicolas Dufresne
ab075b2013 v4l2provider: Fix device type detection
The type detection would lead to assertion as it would try
to create a device without having found any type for it. It
also didn't detect MPLANE devices properly.
2016-07-11 19:17:49 -04:00
Nicolas Dufresne
f0678d73b1 v4l2object: Don't assert when used by the monitor
The monitor sets the object->element object as a GstObject. This
works for debug traces, but will assert for ELEMENT_ERROR. This
was the only case where that could happen. Add a check for that.
2016-07-11 19:17:49 -04:00
Nicolas Dufresne
e62bd2f7d8 v4l2object: Indent very long line 2016-07-11 19:17:49 -04:00
Nicolas Dufresne
5a9c0aa9f5 v4l2: Also copy device_caps in gst_v4l2_dup
This fixes regression where M2M error out saying they have no output
format (the V4L2 CAPTURE side).

https://bugzilla.gnome.org/show_bug.cgi?id=768195
2016-07-10 21:37:24 -04:00
Luis de Bethencourt
eaa01071e0 v4l2: fix multiplanar capture
After switching to using V4L2_CAP_DEVICE_CAPS we lost support for
multiplanar device types. After some research, it looks like
vcap.capabilities treated the multiplanar flag of output and capture
devices equally, but not the new device_caps.

https://bugzilla.gnome.org/show_bug.cgi?id=768195
2016-07-08 19:03:51 +01:00
Luis de Bethencourt
67c2b93106 v4l2: fix v4l2 probe build error
A typo in gst_v4l2_probe_and_register() caused a build error when building
with --enable-v4l2-probe. Fixing it.

gstv4l2.c: In function 'gst_v4l2_probe_and_register':
gstv4l2.c:150:25: error: 'struct v4l2_capability' has no member named 'capabilitites'
       device_caps = vcap.capabilitites;
2016-07-07 23:55:33 +01:00
Reynaldo H. Verdejo Pinochet
dfdc15c548 v4l2src: use gst_caps_intersect_full in negotiate()
Instead of reimplementing the GST_CAPS_INTERSECT_FIRST
interection mode.

https://bugzilla.gnome.org/show_bug.cgi?id=768195
2016-07-07 17:46:06 -04:00
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
Tim-Philipp Müller
2d6c93efe5 v4l2: fix potential double-free of error debug string
gst_v4l2_clear_error() doesn't work like g_clear_error(), it
doesn't NULLify the pointer, so set freed debug string to NULL
so it doesn't get freed again if gst_v4l2_clear_error() is
called twice on the error.

CID 1362901
2016-07-01 11:54:57 +01:00
Nicolas Dufresne
462800e9c6 v4l2videodec: Keep part of the input buffer
Instead of completely getting rid of the input buffer, copy
the metadata, the flags and the timestamp into an empty buffer.
This way the decoder base class can copy that information again
to the output buffer.

https://bugzilla.gnome.org/show_bug.cgi?id=758424
2016-06-07 17:03:40 -04:00
Nicolas Dufresne
a0a590369a v4l2videodec: Coding style fixes 2016-06-07 17:02:47 -04:00
Nicolas Dufresne
e31c6aa427 v4l2object: Coding style fixes 2016-06-07 17:02:47 -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
Nicolas Dufresne
e228430788 v4l2-util: Introduce GstV4l2Error
This is to allow returning an error that can easily be sent as
message to the application if the element needs it. Using this
also allow ignoring errors.

https://bugzilla.gnome.org/show_bug.cgi?id=766172
2016-06-07 17:02:34 -04:00
Nicolas Dufresne
ec169a1517 v4l2src: Avoid decide allocation on active pool
v4l2src will renegotiate only if the format have changed. As of now,
it's not possible to change the allocationw without resetting the
camera. To avoid unwanted side effect, simply keep the old allocation
if no renegotiation is taking place. This fixes assertion and possible
failures in USERPTR or DMABUF import mode (when using downstream pools).

https://bugzilla.gnome.org/show_bug.cgi?id=754042
2016-06-07 12:46:53 -04:00
Philipp Zabel
96d82357f2 v4l2videodec: use decoder stop command instead of queueing empty buffers
Only if the decoder stop command fails, keep queueing empty buffers to
signal end of stream as before.

https://bugzilla.gnome.org/show_bug.cgi?id=733864
2016-06-07 10:49:43 -04:00
Peter Seiderer
ddf7d9d6de v4l2videodec: add gst_v4l2_decoder_cmd helper
https://bugzilla.gnome.org/show_bug.cgi?id=733864
2016-06-07 10:49:43 -04:00
Nicolas Dufresne
f9e01a53d8 v4l2transform: Use looser caps for upstream
When we fixate for upstream, try to not introduce new fields when not
needed. This was imported from videoconvert element.
2016-06-06 17:54:10 -04:00
Enrico Jorns
5829f326b0 gstv4l2transform: format fixation for preferring passthrough
* If outgoing format is unfixated, try to set it to input format.

* Call gst_caps_fixate () at end of fixation routine

https://bugzilla.gnome.org/show_bug.cgi?id=766719
2016-06-06 17:53:02 -04:00
Philipp Zabel
3eeef5fa09 v4l2transform: allow to change pixel aspect ratio
Scalers may change width and height independently,
allow to change pixel aspect ratio.

https://bugzilla.gnome.org/show_bug.cgi?id=766712
2016-06-06 17:50:41 -04:00
Philipp Zabel
89a2f0a647 v4l2transform: fix scaling in case of fixed pixel aspect ratio
To change pixel aspect ratio from DAR to PAR, the necessary scaling factor
is DAR/PAR, not DAR*PAR.
For good measure, add debug output similar to the fixed-width and
fixed-height cases.

https://bugzilla.gnome.org/show_bug.cgi?id=766711
2016-06-06 17:45:38 -04:00
Philipp Zabel
616ccbb0db v4l2object: fill colorimetry in gst_v4l2_object_acquire_format
Instead of relying on the default colorimetry chosen by
gst_video_info_set_format(), set info.colorimetry from the
values returned by G_FMT. This allows decoders to propagate
their input colorimetry downstream.

https://bugzilla.gnome.org/show_bug.cgi?id=766383
2016-06-06 17:39:26 -04:00
Philipp Zabel
b5530a19a7 v4l2object: refactor gst_v4l2_object_get_colorspace to take a v4l2_format parameter
Move the extraction of colorimetry parameters from struct v4l2_format and the
setting of the identity matrix for RGB formats into the function to avoid code
duplication.

https://bugzilla.gnome.org/show_bug.cgi?id=766383
2016-06-06 17:39:26 -04:00
Philipp Zabel
1f31715c98 v4l2videodec: use visible size, not coded size, for downstream negotiation filter
gst_v4l2_probe_caps() returns the coded size, not the visible size. Subtract
the known padding from probed caps with the coded size before using them as
filter for caps negotiation with downstream elements.

https://bugzilla.gnome.org/show_bug.cgi?id=766382
2016-06-06 17:35:47 -04:00
Philipp Zabel
74f020fd2f v4l2object: use G_SELECTION instead of G_CROP in gst_v4l2_object_acquire_format
The gst_v4l2_object_acquire_format() function is used by v4l2videodec to obtain
the currently set capture format. Since G_FMT returns the coded size, the
visible size needs to be obtained from the compose rectangle in order to
negotiate it with downstream elements. The G_CROP call hasn't worked on mem2mem
capture queues for a long time. Instead use the G_SELECTION call to obtain the
compose rectangle and only fall back to G_CROP for ancient kernels.

https://bugzilla.gnome.org/show_bug.cgi?id=766381
2016-06-06 17:33:27 -04:00
Andreas Naumann
b18031cf4b v4l2sink: Use V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY if driver advertises it.
On modern kernels, the G/S_FMT ioctls will always fail using
V4L2_BUF_TYPE_VIDEO_OVERLAY with VFL_DIR_TX (e.g. real overlay out drivers)
since this is not the intented use (rather rx, according to v4l2 API doc).
Probably this is why the Video Output Overlay interface was created, so if
the driver advertises it we might as well use.
For old kernels (pre 2012) the old way might still work so keeping this for
compatibility.

https://bugzilla.gnome.org/show_bug.cgi?id=761165
2016-06-06 17:26:13 -04:00
Kieran Bingham
b4e6a71566 v4l2object: Use non-deprecated V4L2 type for RGB15
Support for the updated V4L2_PIX_FMT_XRGB555 was added in commit
2538fee2fd however, when setting the format
for use in v4l2 ioctls, the old deprecated format is still used. Convert
this to the new accepted format type, as the preferred format.

https://bugzilla.gnome.org/show_bug.cgi?id=767300
2016-06-06 17:19:41 -04:00
Josep Torra
b7866315a6 v4l2src: check for valid size on raw video buffers
Discard buffers that doesn't contain enough data when dealing
with raw video inputs.

https://bugzilla.gnome.org/show_bug.cgi?id=767086
2016-06-01 17:35:12 +02:00
Guillaume Desmottes
1840fa9363 v4l2object: fix caps leak
gst_v4l2_object_probe_caps() was taking an extra ref on the returned
caps for no reason.

https://bugzilla.gnome.org/show_bug.cgi?id=766610
2016-05-25 13:40:54 -04:00
Dimitrios Katsaros
df9eed0ab5 v4l2: Change warning handling to break infinite message loop
v4l2src can cause an "infinite message loop" when a base control exposed as a
property is not provided by the device. In these cases, if in the warning message
handling for the bus, the GST_DEBUG_BIN_TO_DOT_FILE* category of functions are used,
the src lookup causes a new warning to be posted on the bus, causing a loop.

This patch changes the warning for these controls so they are not posted on the bus.

https://bugzilla.gnome.org/show_bug.cgi?id=758703
2016-04-16 16:36:25 -04:00
Wim Taymans
c9c051d53d v4l2: avoid leaking GValues
unset the GValue if we don't use it any more to avoid leaks.
2016-04-12 11:56:08 +02:00
Nirbheek Chauhan
a5369c6be3 v4l2: Don't leak v4l2 objects and props on probe errors 2016-04-04 20:31:43 +01:00
Aurélien Zanelli
c163250f0d v4l2object: probe all colorspace supported by device
A device can support more than one colorspace for a given image
dimension and pixel format. So we have to probe all the supported
colorspace and not only rely on the default one. Otherwise we could end
up with negotiation failure if the caps colorimetry field don't match
the v4l2 device default one even if the v4l2 could support such
colorimetry.

This patch enable probing if colorspace for both capture and output
device. It really makes sense for output device since the colorspace
shall be set by the application and a little less for capture device
which, at the moment, shall provide the colorspace; ie: the v4l2
specification seems to not take into account the fact that a capture
device could do colorspace conversion.

As a side effet, probing takes some times and so sligthly delay v4l2
initialization. Note that this patch only probe colorspace and not all
colorspace, matrix, transfer and range combination to avoid taking too
much time, especially with low-speed devices as full probing do 1782
ioctl.

https://bugzilla.gnome.org/show_bug.cgi?id=755937
2016-03-24 14:05:45 -04:00
Alban Bedel
d746e1ef51 v4l2object: fix capture with bayer formats other than bggr
gst_v4l2_object_get_caps_info() always return V4L2_PIX_FMT_SBGGR8
for all bayer formats. This is obviously broken if the device use
another ordering. Fix this by properly reading the format parameter.

https://bugzilla.gnome.org/show_bug.cgi?id=763318
2016-03-08 11:15:08 -05:00
Josep Torra
c65b66432e v4l2: fix colorimetry for NV12
Replicate V4L2_MAP_QUANTIZATION_DEFAULT macro behavior.
At #v4l it was described that documentation might be wrong and that
we should trust this macro instead.

https://bugzilla.gnome.org/show_bug.cgi?id=762529
2016-03-07 11:36:59 -05:00
Tim-Philipp Müller
3333683f64 v4l2: don't use undeclared core debug category symbols 2016-02-20 11:51:56 +00:00
Tim-Philipp Müller
30a3551163 v4l2src: fix indentation 2016-02-19 15:03:41 +00:00
Luis de Bethencourt
2c52174167 v4l2allocator: Fix spelling of reenqueueing
To match commit 7d7074cef0. I love the idea
of aiming for the maximum number of consecutive vowels.
2016-02-08 15:35:19 +00:00
Nicolas Dufresne
7d7074cef0 v4l2allocator: Fix spelling of queueing
Didn't know which one to choose between queuing and queueing, so I picked
the one with the biggest amount of vowels in a row ;-P (both are
acceptable apparently)
2016-02-08 10:19:31 -05:00
Nicolas Dufresne
0569178ca7 v4l2: Re-add colorimetry field for RGB formats
This time, check if it's an RGB format and sets the transformation
matrix to identity. The rest of the colorimetry information is
meaningfull and shall be kept.

https://bugzilla.gnome.org/show_bug.cgi?id=759624
2016-01-22 14:17:24 -05:00
Wim Taymans
710ab7f083 v4l2: fix sRGB colorspace definition
V4l2 can also use the sRGB colorspace for YUV formats and thus needs a
default matrix.
2016-01-22 10:05:01 +01:00
Wim Taymans
681bab62e5 v4l2: Add adobe colorspace support
Use the new primaries and transfer function for Adobe RGB.
Explicitly list the colorimetry instead of using the default GStreamer
ones. The defaults for BT2020, for example, do not match.
Explicitly set the matrix of SRGB to RGB.
2016-01-21 10:49:44 +01:00
Jan Schmidt
d34910bf30 v4l2: Don't free props structure twice.
gst_v4l2_device_provider_probe_device() frees the passed props
structure, don't free it again in the caller.
2016-01-20 18:23:37 +11:00
Nicolas Dufresne
496137854b v4l2object: Cleanup uneeded return statement 2016-01-19 15:17:50 -05:00
Nicolas Dufresne
fd32440609 v4l2object: Don't set colorimetry for non YUV formats
Setting colormetry in caps for RGB have no meaning, but worst it
confuses the converters downstream.

https://bugzilla.gnome.org/show_bug.cgi?id=759624
2016-01-19 15:17:50 -05:00
Pablo Anton
927ba9332f v4l2-*: Configuring output pool correctly for using drivers min_buffer if present.
Signed-off-by: Pablo Anton <pablo.anton@vodalys-labs.com>

https://bugzilla.gnome.org/show_bug.cgi?id=755736
2016-01-04 16:32:28 -05:00
Wim Taymans
5fe9a59842 v4l2deviceprovider: add properties to the device
Add properties to the device with exactly the same keys and sematics
as what pulseaudio uses as property keys.

Also handle the case when a device is probed manually and not through gudev.

https://bugzilla.gnome.org//show_bug.cgi?id=759780
2015-12-29 11:25:36 +00:00
Nicolas Dufresne
2538fee2fd v4l2object: Update formats table
This change add all the new RGB based format. Those format removes the
ambiguity with the ALPHA channel. Some other missing multiplanar format
has been added with some additional cleanup.
2015-12-18 15:58:01 -05:00
Wim Taymans
b208ae72ee v4l2bufferpool: don't block when resurecting a buffer
When we are resurecting a buffer, don't block. instead let us copy a
buffer.
2015-12-01 18:22:11 +01:00
Philipp Zabel
c75a69d415 v4l2: videodec: choose format from caps
https://bugzilla.gnome.org/show_bug.cgi?id=733827
2015-11-25 14:32:28 -05:00
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
Nicolas Dufresne
1435974c2d v4l2-probe: Skip devices without supported formats 2015-11-25 14:31:29 -05:00
Nicolas Dufresne
3cdc700e3e v4l2: Track /dev/video* to triggered required probe
If something in /dev/video* get added, removed or replaced, we need to
probe the devices again in order to ensure the dynamic devices are up to
date.

https://bugzilla.gnome.org/show_bug.cgi?id=758085
2015-11-25 14:31:29 -05:00
Nicolas Dufresne
4ecd25d267 v4l2: Fix capture/output-io-mode properties
There was some miss-match in the implementation. This makes it
concistent, though functionally it worked, except the video decoder
output-io-mode getter.
2015-11-19 15:35:36 -05:00
Reynaldo H. Verdejo Pinochet
8ef6ecc244 v4l2/object: remove unnecessary NULL check before g_free() 2015-11-15 01:43:08 -08:00
Aurélien Zanelli
aaab7b6ab1 v4l2object: add support of NV16, NV61 and NV24 formats
Mapped respectively to V4L2_PIX_FMT_NV16/V4L2_PIX_FMT_NV16M,
V4L2_PIX_FMT_NV61,V4L2_PIX_FMT_NV61M and V4L2_PIX_FMT_NV24 v4l2 formats.

https://bugzilla.gnome.org/show_bug.cgi?id=758058
2015-11-13 10:29:01 -05:00
Arun Raghavan
7b17615da8 v4l2: Set O_CLOEXEC on the device fd
This is needed to make sure that child processes don't inherit the video
device fd which can cause problems with some drivers.
2015-11-03 22:02:38 +05:30
Nirbheek Chauhan
5f720cc3cb v4l2: fix double-unref in the v4l2 device provider 2015-10-28 19:09:28 +00:00
Jean-Michel Hautbois
dd45e45e30 v4l2transform: fix pad closing
Signed-off-by: Jean-Michel Hautbois <jean-michel.hautbois@veo-labs.com>

https://bugzilla.gnome.org/show_bug.cgi?id=753875
2015-08-20 13:44:46 -07:00
Dimitrios Katsaros
a55b9060f8 v4l2: Allow framerate to be large then 100pfs
This limit was arbitrary. We still fixate near 100pfs for compatibility.

https://bugzilla.gnome.org/show_bug.cgi?id=752825
2015-07-25 10:40:51 -04:00
Hyunjun Ko
afcd462918 v4l2bufferpool: set GST_BUFFER_COPY_FLAGS to copy flags also
https://bugzilla.gnome.org/show_bug.cgi?id=752618
2015-07-23 10:19:46 -04:00
Song Bing
c5950cd04a v4l2bufferpool: Set timestamp when queue buffer.
Should set timestamp when queue buffer.

https://bugzilla.gnome.org/show_bug.cgi?id=752618
2015-07-20 16:49:41 -04:00
Luis de Bethencourt
911f7b38b9 v4l2transform: fix memory leak
tmp needs to be freed before going out of scope in 'done'.

CID #1308954
2015-07-02 14:37:41 +01:00
Luis de Bethencourt
600942788d v4l2: document fallthrough cases
Pacify coverity and document fallthrough cases in switch statements.

CID #1308948, #1308947, #1308946
2015-06-29 16:05:48 +01:00
Philipp Zabel
95bab88225 gstv4l2bufferpool: handle -EPIPE from DQBUF to signal EOS
The V4L2 decoder signals EOS by returning -EPIPE from DQBUF after the
last buffer.

https://bugzilla.gnome.org/show_bug.cgi?id=743338
2015-06-09 21:56:40 -04:00
Enrico Jorns
3067a60d8e v4l2: Allow scaling in the v4l2*convert element
This is inspired of videoscale and videoconvert elements.

https://bugzilla.gnome.org/show_bug.cgi?id=742917
2015-06-09 18:50:25 -04:00
Nicolas Dufresne
0f81b2e99c v4l2: Also set colorimetry on output devices
This completes the code that set the colorimetry on output
device.
2015-06-08 19:14:41 -04:00
Nicolas Dufresne
87a4884acd v4l2: Add missing SMTP240M matrix
This is missing in the doc, but was in the header.
2015-06-08 19:14:41 -04:00
Nicolas Dufresne
b5d66d68ce v4l2object: Fully implement colorimetry support
This fixes wrong mapping for sRGB as in GStreamer sRGB correctly
apply to RGB formats, while in V4L2 it's an alias for sYCC. Also
add support for the new quantization (range), ycbcr_encoding (matrix)
and xfer_func (transfer) enumeration.
2015-06-08 17:56:48 -04:00
Nicolas Dufresne
70e98a1a68 v4l2: Update kernel headers to latest from media tree
This is the latest from media tree. This should enable more development
of the v4l2 elements. This includes new flags requires to fix draining
path in decoder, colorimetry and much more.
2015-06-08 17:56:48 -04:00
Nicolas Dufresne
0196fdb5ec v4l2: Don't warn when optional CID are not implement
gst_v4l2_get_attributre() shall only be used when the CID is expected
to be supported. Otherwise, we get unwanted warning posted to the bus.
2015-06-05 15:34:12 -04:00
Wim Taymans
8c116cfcd8 v4l2: don't add the same interlace mode twice
Some drivers modify the interlace mode to progressive, no matter what
input you give them, make sure that we don't add the same interlace mode
twice.
2015-04-22 18:05:24 +02:00
Luis de Bethencourt
dad26043c3 v4l2: cast unused return to void
Quell unchecked return value defect by casting the return value to void and
making it explicit it is going to be ignored.

CID #206031
2015-04-21 15:21:37 +01:00
Peter Seiderer
f160625ea6 v4l2src: device sequence/offset correction in case of renegotiation
The v4l2 device restarts the sequence counter in case of streamoff/streamon,
the GST offset values are supposed to increment strictly monotonic, so
adjust the sequence counter/offset values in case of caps
renegotiation.

https://bugzilla.gnome.org/show_bug.cgi?id=745441
2015-04-02 17:40:20 -04:00
Peter Seiderer
866d97fa2c v4l2src: add frame loss detection
In case of v4l2 driver filled offset/sequence values add frame
loss detection (and write a warning message).

Move offset meta data setting and frame loss checking after the
timestamp adjustment code to get proper timestamps for the
warning message.

https://bugzilla.gnome.org/show_bug.cgi?id=745441
2015-04-02 17:40:19 -04:00
Peter Seiderer
f16fe891fb v4l2: use v4l2 capture device sequence counter
Use the v4l2 capture device sequence counter for
setting the GstBuffer offset/offset_end values.

https://bugzilla.gnome.org/show_bug.cgi?id=745441
2015-04-02 17:40:19 -04:00
Tobias Modschiedler
8390288a6e v4l2: Ask the driver about its requirements for min_buffers before initiating buffer pool.
If propose_allocation() had not been called yet, it was possible that the driver was not asked at all.
In buffer pool: Consider minimum number of buffers requested by driver when setting config.

https://bugzilla.gnome.org/show_bug.cgi?id=746834
2015-04-02 17:29:19 -04:00
Thiago Santos
0a945e7099 v4l2src: delay renegotiation until it is likely buffers were reclaimed
Allow renegotiation to happen when buffers have returned after an allocation
query. As the allocation query is serialized, all buffers from the pool
should have returned and we can stop it to create a new one for the
new format

https://bugzilla.gnome.org/show_bug.cgi?id=682770
2015-03-13 18:48:03 +00:00
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
Nicolas Dufresne
eeb4d2e8b1 v4l2bufferpool: Don't update buffer for OUTPUT
For output device, we should not update the buffer with flags and
timestamp when we dequeue. The information in the v4l2_buffer is not
meaningful and it breaks the case where the buffer is rendered at
multiple places.

https://bugzilla.gnome.org/show_bug.cgi?id=745438
2015-03-08 21:15:53 +00:00
Gwenole Beauchesne
8cd40e77b7 v4l2allocator: fix fd leak in DMABUF import mode.
Ensure gst_v4l2_buffer_pool_release_buffer() releases the associated
GstV4l2MemoryGroup. In particular, this allows for closing the DMABUF
handles prior to instantiating new ones.

https://bugzilla.gnome.org/show_bug.cgi?id=745443
2015-03-02 15:10:51 -05:00
Nicolas Dufresne
8e75acc7b7 v4l2bufferpool: Add missing break
This is cosmetic change.
2015-03-01 14:03:04 -05:00