7 Commits

Author SHA1 Message Date
brandtr
48d21a23c6 Persist RTP state for FlexFEC.
Before this CL, the RTP state would be re-randomized after a
recreation of VideoSendStream. That might lead to us sending
a non-compliant RTP stream, which is avoided after the
changes in this CL.

BUG=webrtc:5654
TBR=pbos@webrtc.org  # Trivial change to fuzzer.

Review-Url: https://codereview.webrtc.org/2912713002
Cr-Commit-Position: refs/heads/master@{#18322}
2017-05-30 09:32:12 +00:00
erikvarga
2788373528 Remove hardcoded kValueSizeBytes values from variable-length header extensions.
Since the RtpStreamId and RepairedRtpStreamId extensions can have variable
length, it makes no sense for them to have a constant valueSize field.
The header length calculation in RtpHeaderExtensionMap needed to be changed
for this because it previously worked with the assumption that all header
types have a constant size. Now it's the caller's job to specify the length
of the extensions that it might use.

BUG=webrtc:7433

Review-Url: https://codereview.webrtc.org/2867713003
Cr-Commit-Position: refs/heads/master@{#18179}
2017-05-17 12:08:38 +00:00
brandtr
658024ee92 Reduce FlexFEC logging severity in two places.
BUG=webrtc:5654

Review-Url: https://codereview.webrtc.org/2621833004
Cr-Commit-Position: refs/heads/master@{#15992}
2017-01-10 14:49:58 +00:00
brandtr
fe793eb2d1 Remove sequenced task checker from FlexfecSender.
The packetization parts of this class are accessed from the
encoder thread, which might change under different occasions.
The use of a sequenced task checker here is thus incorrect, since
that requires the access to always be on the same thread, whenever
a task queue is not used.

The access to the instantiated object of this class, at least when
it comes to the RTP packetization parts, is however synchronized
using the lock in PayloadRouter::OnEncodedImage. We can therefore
safely remove the sequenced task checker.

BUG=webrtc:5654

Review-Url: https://codereview.webrtc.org/2562983002
Cr-Commit-Position: refs/heads/master@{#15549}
2016-12-12 15:14:03 +00:00
brandtr
131bc498e6 Wire up FlexfecSender in RTPSenderVideo.
This CL adds the ability for RTPSenderVideo to generate and send
FlexFEC packets.

BUG=webrtc:5654

Review-Url: https://codereview.webrtc.org/2490523002
Cr-Commit-Position: refs/heads/master@{#15016}
2016-11-10 13:01:16 +00:00
brandtr
1743a19183 Simplify SetFecParameters signature.
- Change const ptr to const ref in parameter list.
  Using nullptr as argument was invalid, so no need to send
  pointer instead of reference.
- Change return type to void or bool, where appropriate

BUG=webrtc:5654

Review-Url: https://codereview.webrtc.org/2455963003
Cr-Commit-Position: refs/heads/master@{#14945}
2016-11-07 11:36:14 +00:00
brandtr
c295e00fa0 Add FlexfecSender.
This class will interface RTPSenderVideo with the underlying
erasure code. It is functionally similar to ProducerFec
(to be renamed UlpfecGenerator). In fact, the FlexfecSender is a
friend of ProducerFec, and reuses most of its implementation.
Besides the fact that FlexfecSender outputs FlexFEC packets,
the main difference with ProducerFec is that FlexfecSender
allocates RTP sequence numbers, whereas ProducerFec does not
do this for the RED-encapsulated ULPFEC packets.

This class is split as interface/implementation, since it will
be owned by VideoSendStream initially. Further along, it may be
owned by PacedSender.

BUG=webrtc:5654

Review-Url: https://codereview.webrtc.org/2441613002
Cr-Commit-Position: refs/heads/master@{#14922}
2016-11-03 16:22:41 +00:00