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785 commits 19 branches 32 tags 14 MiB
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56 commits

Author SHA1 Message Date
Juliusz Chroboczek
6ae79f21d6 Use unbounded buffer for track actions. 
Without that, we might deadlock if the reader is blocked in read.
 2021-07-16 03:03:45 +02:00
Juliusz Chroboczek
9b8d868647 Fix a race between delUpConn and addLocal. 
We could call addLocal after the remote was closed, which
would cause the local connection to remain forever.

Thanks to Ludovic Rateau.
 2021-07-15 16:03:06 +02:00
Juliusz Chroboczek
3d2089f40f Merge GetRTP and Nack into GetPacket. 
The two function were always called together.  This factors out
the NACKing logic into the track.
 2021-07-14 14:22:22 +02:00
Juliusz Chroboczek
36d31f0db8 Maintain a reference to the connection associated to each track. 
This avoids carrying an extra parameter in many places.
 2021-07-14 14:05:23 +02:00
Juliusz Chroboczek
f3b73263c8 Fix handling of NACKed packets when dropping. 
We were not rewriting in this case.
 2021-05-17 20:06:08 +02:00
Juliusz Chroboczek
22585e9d10 Handle spatial scalability. 
Maintain spatial layer information, and drop lower layers when
possible.  Yields a 20% saving with VP9.
 2021-05-17 18:17:43 +02:00
Juliusz Chroboczek
fd76abb61d Send up actions synchronously. 2021-05-17 03:54:58 +02:00
Juliusz Chroboczek
c00a21995e Move PLI rate-limiting into the reader loop. 2021-05-17 03:54:20 +02:00
Juliusz Chroboczek
c0da658b9f Send sender report more often. 
Now that we start at 200kbps, we need to increase our rate faster.
 2021-05-14 23:21:14 +02:00
Juliusz Chroboczek
2da8faa8cf Implement per-stream requests. 2021-05-14 23:21:14 +02:00
Juliusz Chroboczek
6f9d7fc306 Scalable video coding (SVC). 2021-05-14 23:21:14 +02:00
Juliusz Chroboczek
5ad0244267 Allow the loss-based congestion controller to yield higher values. 2021-05-12 17:06:26 +02:00
Juliusz Chroboczek
c53cc20d26 Use Write instead of WriteRTP in the downTrack interface. 2021-05-11 23:48:17 +02:00
Juliusz Chroboczek
b09dba0e26 Remove FIR sending code. 
We no longer send FIRs.
 2021-05-11 23:46:57 +02:00
Juliusz Chroboczek
d3f53e6ada Move rate estimation into rtpDownTrack.WriteRTP. 2021-05-11 22:45:33 +02:00
Juliusz Chroboczek
c52e1f4ce0 Move keyframe handling to the sender side. 
This is simpler and gets rid of ErrKeyframeNeeded.
 2021-05-11 22:36:56 +02:00
Juliusz Chroboczek
795a40ceaf Simulcast. 2021-05-08 21:12:29 +02:00
Juliusz Chroboczek
ed88a7a4b5 Fix typo in REMB sending. 2021-05-08 18:51:15 +02:00
Juliusz Chroboczek
65972fabe8 Remove dead code. 2021-05-08 16:03:32 +02:00
Juliusz Chroboczek
9b1d814b58 Rework packetcache loss statistics. 
Don't maintain loss, which is too error-prone.  Instead, maintain
expected and received packet counts, and compute loss from that.
 2021-04-30 16:26:17 +02:00
Juliusz Chroboczek
cd6920d7e2 Allow group.API() to fail. 2021-04-29 21:10:04 +02:00
Juliusz Chroboczek
be73380f9f Label streams, not tracks. 
We used to label tracks individually, in a view to using the labelling
for simulcast.  Since then, the WebRTC community has converged on a
different strategy, where multiple tracks share a single mid and
are labelled with the rid extension.

We now label whole streams, which is simpler, and use the track's
kind (and, in the future, the rid) to disambiguate.  This changes the
protocol in two ways:

  * in offers, the "labels" dictionary is replaced by a single "label"
    field; and
  * the syntax of the "request" message has changed.
 2021-04-29 18:28:16 +02:00
Juliusz Chroboczek
fe83f61998 Don't complain about ErrClosedPipe in RTCP receiver. 
This simply indicates that the server closed the connection
before we received the close indication from the client.
 2021-02-11 16:19:36 +01:00
Juliusz Chroboczek
263258a0c1 Implement renegotiation of down streams. 
We used to destroy and recreate down streams whenever something changed,
which turned out to be racy.  We now properly implement renegotiation,
as well as atomic replacement of a stream by another one.
 2021-02-03 19:15:40 +01:00
Juliusz Chroboczek
6c4a71fda0 Increase timeout for connection completion. 2021-02-02 23:12:52 +01:00
Juliusz Chroboczek
73f72c45fc Fix race in pushConn. 2021-02-02 22:46:40 +01:00
Juliusz Chroboczek
14a4303664 Rework connection replacement. 
We used to signal connection replacement by reusing the same connection
id.  This turned out to be racy, as we couldn't reliably discard old
answers after a connection id was refused.

We now use a new id for every new connection, and explicitly signal
stream replacement in the offer message.  This requires maintaining a
local id on the client side.
 2021-01-31 23:59:17 +01:00
Juliusz Chroboczek
fb17778ba6 Increase receiver report timeout. 2021-01-21 21:19:07 +01:00
Juliusz Chroboczek
f0dcd0b1d9 Rework locking of tracks. 
We now add tracks after the stream has been pushed, so we need a lock
on down streams.  Also rework sendUpRTCP to reduce locking.
 2021-01-19 23:55:33 +01:00
Juliusz Chroboczek
49bcc342ed Queue negotiation if not in stable state. 
If we send two offers back to back, the second answer will arive in
stable state, which will confuse us.  Instead, queue the second offer.
 2021-01-12 20:44:48 +01:00
Juliusz Chroboczek
dad113c1f9 Generate transceivers from incoming SDP. 2021-01-11 20:24:09 +01:00
Juliusz Chroboczek
f53276b89e Simplify the protocol and the protocol interface. 
Split the id field into id and source, where source indicates the sender
of the message and id the entity being sent.  Remove the label request,
just use the offerer's username.  Maintain the username within the
ServerConnection, this removes a parameter from some methods.
 2021-01-03 12:17:30 +01:00
Juliusz Chroboczek
450601f0e8 Move ICE code into own module, add tests. 2021-01-02 00:21:17 +01:00
Juliusz Chroboczek
dbec9df288 Use Pion's JSON support for ICE configuration. 2021-01-01 22:28:38 +01:00
Juliusz Chroboczek
a0418d26ec Send RTC configuration with joined message. 
This avoids one HTTP request, and is potentially more flexible.
 2020-12-28 02:55:19 +01:00
Juliusz Chroboczek
9e4aede72a Fix issues with unaligned atomic operations. 
This could be solved by simply reordering the fields, but it
is more robust to move the atomics into their own structure,
and the extra indirection should not cost much.
 2020-12-27 01:31:31 +01:00
Juliusz Chroboczek
5d38b0a231 Allow various codecs. 
It is now possible to specify codecs other than VP8 and Opus.  This
turns out not to be very useful, since VP8 is the only codec supported
by all browsers (in violation of the WebRTC spec, which mandates support
for H.264), and there is no good reason to use anything other than Opus
for audio.
 2020-12-26 19:46:37 +01:00
Juliusz Chroboczek
2785fa9f77 Store labels early. 
This avoids spurious up.complete indications.
 2020-12-25 22:32:30 +01:00
Juliusz Chroboczek
3c04d48b85 Push a connection even if all tracks didn't arrive. 
We used to push a connection when we got all tracks.  However, it may
happen that some tracks fail; in that case, the connection would never
get pushed.
 2020-12-25 20:23:46 +01:00
Juliusz Chroboczek
e5fec68acf Start RTCP up sender early. 2020-12-25 20:10:12 +01:00
Juliusz Chroboczek
4c07953ee0 Update dependencies. 2020-12-19 19:03:14 +01:00
Juliusz Chroboczek
4fde2c40e6 Run gofmt. 2020-12-19 17:38:47 +01:00
Juliusz Chroboczek
325f288189 Move to github. 2020-12-19 17:37:48 +01:00
Juliusz Chroboczek
ef1c211b7f SFU is now called Galène. 2020-12-06 19:51:02 +01:00
Juliusz Chroboczek
2d07c5d317 Move to Pion v3 API. 2020-12-06 11:15:59 +01:00
Juliusz Chroboczek
0e7bf0b348 Carry group around when pushing connections. 
This avoids a race condition if the group changes before the connections
are pushed.
 2020-12-05 00:07:34 +01:00
Juliusz Chroboczek
120bfc92c7 Upgrade pion/rtcp, use nack.Range instead of PacketList. 2020-12-03 23:46:19 +01:00
Juliusz Chroboczek
b46da173e5 Don't log rate limited FIR. 2020-10-31 23:26:56 +01:00
Juliusz Chroboczek
f8d2bb93e8 Avoid deadlock in DelLocal. 2020-10-27 18:24:33 +01:00
Juliusz Chroboczek
c8de6620a7 Send non-trivial bitmaps during NACK forwarding. 2020-10-12 16:18:57 +02:00