Detects Munsell ColorChecker in a video image and automatically
white balances and color corrects based on the detected values.
This element is only a demonstration at this stage, it needs to
be separated into two elements.
Instead of probing the videosink sinkpad for passing EOS, better
to wait for EOS from the bus.
This makes sure the filesink has already processed it and is
ready to close the file. This is used to notify applications
that camerabin2 is idle and can be shut down.
This is not implemented in any of our real sources to which wrappercamerabinsrc
might connect but this is optional and can be implemented at any time. A
limit on the software zoom level using video{crop,scale} would be arbitrary.
Use resource warning messages to notify camerabin2 that a capture
as aborted or couldn't be started, making it decrement the
processing counter and making the idle property more reliable.
Setting the audio source to null isn't needed and it could
make the EOS that is still flowing be dropped if autoaudiosrc
is used because its pads go flushing before the EOS gets pushed
from the real source.
gst_caps_make_writable() takes ownership of the caps passed in, but
the caller doesn't own a ref to the caps here, because GST_PAD_CAPS
doesn't return a ref. Looks like the code relied on a caps leak
elsewhere for this to work properly.
If downstream doesn't handle the newsegment event, don't error out (esp.
not without posting a proper error message on the bus), but just continue.
If there's a problem, we'll find out when we start pushing buffers.
https://bugzilla.gnome.org/show_bug.cgi?id=644395
When recording 2 videos in sequence with the same video-capture-caps,
the second video would get a not-negotiated error because the
src caps were being cleared without any intention of
renegotiating it back to the requested capture caps.
This patch avoids this caps reset procedure unless a new
caps was set.
Don't leak string copy returned by gst_element_get_name(). Also, check
for certain elements by checking the plugin feature / factory name, not
the assigned object name.
... and not only when sort-of feeling like it.
In any case, if it turns out all really is in order,
and presumably DTS == PTS, then no ctts will be produced anyway.
We can't rely on audio sources pushing EOS when going PAUSED->READY
because this is a basesrc bahavior and when used inside autoaudiosrc
the ghostpad goes flushing before the real source pushes the EOS,
so it is dropped.
Audio elements are put into bin only when needed, so we need
to be careful with their states as camerabin2 won't manage
them if they are outside the bin.
Also we should reset their pad's flushing status before
starting a new capture.
Adds an audio source and audio capsfilter/queue/convert, creating
a new branch on camerabin2 that is used to feed encodebin with
audio buffers for video recording.
Adds properties to check what caps are supported on the
viewfinder (from the camerasrc viewfinder pad) and another
one to set a caps for the viewfinder.
Use video_renegotiate and image_renegotiate booleans to make
the videosrc negotiate the capture caps on the first capture because
the caps might be set before wrappercamerabinsrc goes into PLAYING
and pads drop the internal renegotiate event.
This is required as the output-selector is using the 'none' negotiation
mode.
When setting the internal capsfilter caps for capture we should put
the full caps instead of trying to fixate it ourselves. This way we let
the elements (and mostly the source) select the best format instead
of defaulting to what the pad fixation function picks.
This element analyses video buffers to identify if they are progressive,
interlaced or telecined and outputs buffers with appropriate flags for a
downstream element (which will be the deinterlace element, after some
forthcoming modifications) to be able to output progressive frames and
adjust timestamps resulting in a progressive stream.
Remove bogus freeing of pad element_private data that we
never set (collectpads uses it, which causes confusion here).
Also, check that our collectpads instance exists before using
it. Partial fix for #636011.
with permission from the license header:
"""
This library is licensed under 2 different licenses and you
can choose to use it under the terms of either one of them. The
two licenses are the MPL 1.1 and the LGPL.
"""
Even if we currently do not have a duration yet, assume seekable if
it looks like we'll likely be able to determine it later on
(which coincides with needed information to perform seeking).
Even if we currently do not have a duration yet, assume seekable if
it looks like we'll likely be able to determine it later on
(which coincides with needed information to perform seeking).
Fixes#641047.
If videobin/imagebin was never set to READY state the ownership
of elements created and set by application were never taken by
bin and therefore gst_object_sink is called for these elements
before unreffing (they may still be in floating state and not
unreffed properly without sinking first)
Even if VBR headers are missing, we can't guarantee that a stream is in
fact a CBR stream, so it's safer to let baseparse calculate the average
bitrate rather than assume a CBR stream. However, in order to make
/some/ metadata available before the requisite number of frames have
been parsed, this posts the bitrate from the non-VBR headers as the
nominal bitrate.
https://bugzilla.gnome.org/show_bug.cgi?id=641858
When select-all was set, input-selector wasn't handling upstream events.
Now input-selector forwards the event to all of its sink pads. This
changes the input-selector internal to camerabin until it is replaced
with a better solution.
Image previews where being posted in sync with the buffers
timestamps, this makes no sense as previews should be posted ASAP.
Also adds some debugging messages.
Camerabin2 uses state changes to force the source to renegotiate its
caps to the capture formats. The state changes makes the source lose
its clock and base_time, causing it to stop timestamping the buffers.
We still need a proper way to make sources renegotiate its caps, so this
patch is a hack to make the source continue timestamping buffers even
after changing state. The patch works by getting the clock and base
time before doing the state change to NULL and setting them back
after putting it to PLAYING again. It also cares to drop the first
new segment after this state change.
When setting up the initial mapping just act as if the global frame
information is another partition. This saves special-casing it later in
the actual packetizing code.
Functionally equivalent to (legacy)h264parse and re-uses the latter's low
level NAL parsing, but otherwise based on GstBaseParse, and replacing
some property configuration with caps negotiation.
This adds an h263parse element for parsing H.263 streams, breaking them
up into frame-sized buffers, and exporting metadata such as profile and
level.
https://bugzilla.gnome.org/show_bug.cgi?id=622276
Rather than a fixed default frame count, estimate frame count to aim for
an interval duration depending on fps if available, otherwise use old
fixed default.
Also add a format flag to signal baseparse that subclass/format can provide
(parsed) timestamp rather than an estimated one. In particular, such "strong"
timestamp then allows to e.g. determine duration.
When going to ready, camerabin2 could create an empty file
if the videosink was put to ready. This patch only puts videosink
to ready on the PAUSED_TO_READY state change if it is on PAUSED
or PLAYING.
