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45 Commits

Author SHA1 Message Date
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
Juliusz Chroboczek 5e130122f5 Forward NACKs to sender in case of double loss. 
We already send NACKs when a packet is missing.  Under high packet loss,
however, the recovery packet might get lost two.  Forward receiver NACKs
to the sender, but only after a delay and after checking that the packet
has not arrived in the meantime.
 2020-10-12 13:00:59 +02:00
Juliusz Chroboczek 5e845eb493 Send FIR if initial keyframe is too old. 2020-10-11 22:56:15 +02:00
Juliusz Chroboczek 67a821ea75 Increase minimum size of packet cache. 
Now that we cache keyframes, it is worth keeping some history
even when latency is low.
 2020-10-03 16:18:28 +02:00
Juliusz Chroboczek 28b7c6d54d Move RTP writer to separate file. 2020-10-03 12:58:01 +02:00
Juliusz Chroboczek 3083b89db9 Reuse single buffer in RTCP listeners. 2020-10-01 22:22:17 +02:00
Juliusz Chroboczek 6f5ae12f14 Move RTP-specific code into its own package. 2020-09-18 10:28:05 +02:00
Renamed from rtpconn.go (Browse further)