Caps events are sometimes not followed by a buffer but by an event. Flush any
pending caps before we make a packet with the event.
Chain up to the parent event handler before we attempt to push RTP packets, it
might be a segment event.
We currently only send tags and custom events. The other events
might interfere with the receiver timings or are otherwise handled
by RTP.
Conflicts:
gst/rtp/gstrtpgstpay.c
Use adapter to assemble the payload and make a flush function to
turn this payload into (fragmented) packets.
Conflicts:
gst/rtp/gstrtpgstpay.c
gst/rtp/gstrtpgstpay.h
Make sure we only insert the rtp packet in the adapter when the
frag_offset matches. When the first packet of a fragment is dropped,
it avoids putting the remaining packets in the adapter and processing
the partial fragment.
Conflicts:
gst/rtp/gstrtpgstdepay.c
Set the C flags on all the fragments instead of only those with
caps in them. This makes it easier in the receiver to check if there
is a caps in the assembled fragments just by looking at the last RTP
packet flags.
Place the capsversion on the outgoing caps so that they end up in
an SDP as well. Receivers need to know what capsversion a particular
caps is for to be able to match the caps to the CV in the RTP packets.
Place the caps inside the RTP packet whenever the caps change.
Based on patch by Andrzej Bieniek <andrzej.bieniek@pure.com>
Conflicts:
gst/rtp/gstrtpgstpay.c
gst/rtp/gstrtpgstpay.h
These will be picked automatically based on downstream caps now, so
if you want the depayloader to output a specific format, make sure
the element downstream advertises that preference or use a capsfilter
after the depayloader to force it.
rtph263ppay should accept any input compatible with its sink template
caps if it just outputs to e.g. udpsink or fakesink.
rtph263ppay ! rtph263pdepay should also work with any compatible input.
This would fail before with not-negotiated errors because the get_caps
function would see the encoding-name in the depayloader's template caps
and default to baseline H.263 because there's no profile/level information
in those caps, which is the right thing to do if downstream has filtercaps
from an SDP, but not if those fields are absent because they can be
anything like with the depayloader's template caps. Makes
videotestsrc ! avenc_h263p ! rtph263ppay ! rtph263pdepay ! fakesink
work.
From RFC 2250
2. Encapsulation of MPEG System and Transport Streams
...
For MPEG2 Transport Streams the RTP payload will contain an integral
number of MPEG transport packets. To avoid end system
inefficiencies, data from multiple small MTS packets (normally fixed
in size at 188 bytes) are aggregated into a single RTP packet. The
number of transport packets contained is computed by dividing RTP
payload length by the length of an MTS packet (188).
....
Since it needs to contain "an integral number of MPEG transport packets", a
simple fix is to check that's the case, and strip off any leftover data.
Fixes#676799
Conflicts:
gst/rtp/gstrtpmp2tdepay.c
If there are no profile restrictions downstream, return caps with
profile=constrained-baseline in the first structure and append
unrestricted caps as the last structure.
Fixes bug #672019
