During my backport of RtpStreamId from webrtc.org, I missed a few
places where RepairedRtpStreamId was used or was not completely
implemented. Also, the webrtc.org code used repairedStreamId,
which is not really correct per the spec (draft-ietf-avtext-rid)
so I fixed all occurances to use the correct repairedRtpStreamId
to avoid confusion later.
The RTP header extensions default IDs for RtpStreamId and
RepairedRtpStreamId were also adjusted to not collide with
PlayoutDelay's default ID.
MozReview-Commit-ID: HSlS8nsKQ29
--HG--
extra : rebase_source : f1bf7fc9ceec22de1c56ef3b7be22fccea01ecdb
This allows sending and receiving arbitrarily (we limit to 1 GiB atm) sized
messages while not relying on the deprecated PPID fragmentation/reassembly
mode. The code already supports the ndata extension but it's not activated,
yet. Without the SCTP ndata extension, a large data channel message will
monopolise the SCTP association. While this is a problem, it is a temporary
solution until the extension is being activated. Keep in mind that every
application that uses data channels currently does fragmentation/reassembly on
application-level and it's unlikely that this will change until the popular
implementations (libwebrtc) implement EOR as well. Moreover, until the WebRTC
API specifies an API that hands over partial messages, doing application-level
fragmentation/reassembly is still useful for very large messages (sadly).
We fall back to PPID-based fragmentation/reassembly mode IFF a=max-message-size
is not set in the SDP and the negotiated amount of SCTP inbound streams is
exactly 256. Other implementations should avoid using this combination (to be
precise, other implementations should send a=max-message-size).
It also changes behaviour of RTCDataChannel.send which now raises TypeError in
case the message is too large for the other peer to receive. This is a
necessity to ensure that implementations that do not look at the EOR flag when
receiving are always able to receive our messages. Even if these
implementations do not set a=max-message-size, we use a safe default value (64
KiB, dictated by the spec) that every implementation should be able to receive,
with or without EOR support.
* Due to the use of explicit EOR, this required some major refactoring of all
send-related and deferred sending functions (which is now a lot less
complex). There's now only one place where `usrsctp_sendv` is being used.
* All data channel messages and DCEP messages will be sent without copying them
first. Only in case this fails (e.g. usrsctp's buffer is full), the message
will be copied and added to a buffer queue.
* Queued data channel messages will now be re-sent fairly (round-robin).
* Maximum message size and the PPID-based fragmentation are configurable using
about:config (media.peerconnection.sctp.force_ppid_fragmentation and
media.peerconnection.sctp.force_maximum_message_size).
* Enable interleaving of incoming messages for different streams (preparation
for SCTP ndata, has no effect until it is enabled).
* Enable interleaving of outgoing messages (disabled if SCTP ndata has not been
negotiated).
* Add pending messages flag to reduce performance impact from frequent calls to
SendDeferredMessages.
* Handle partial delivery events (for cases where a partially delivered message
is being aborted).
* Close a data channel/the connection in case the message is too large to be
handled (this is only applied in cases where the remote peer ignores our
announced local maximum message size).
* Various size_t to uint32_t conversions (message length) and back should be
safe now.
* Remove aUsingDtls/mUsingDtls from DataChannelConnection.
* Set maximum message size in SDP and in the data channel stack.
* Replace implicit NS_ENSURE_*'s with explicit NS_WARN_IF's.
* Add SetMaxMessageSize method for late-applying those signalling parameters
when a data channel has been created before the remote SDP was available.
* Limit remote maximum message size and add a GetMaxMessageSize method for a
future implementation of RTCSctpTransport.maxMessageSize.
MozReview-Commit-ID: FlmZrpC5zVI
--HG--
extra : rebase_source : 54e1b838c788a3abbded4fb32fe7c2788f8a9bc0
Since I am already poking around in ffvpxcommon.mozbuild's CFLAGS, also suppress these clang -Wvisibility and -Wstring-conversion warnings:
media/ffvpx/libavutil/dummy_funcs.c:83:34 [-Wvisibility] declaration of 'struct AVBufferRef' will not be visible outside of this function
media/ffvpx/libavutil/dummy_funcs.c:83:67 [-Wvisibility] declaration of 'struct AVFrame' will not be visible outside of this function
media/ffvpx/libavutil/utils.c:119:26 [-Wstring-conversion] implicit conversion turns string literal into bool: 'char [19]' to '_Bool'
And remove -Wno-logical-op-parentheses because clang does not currently report any -Wlogical-op-parentheses warnings for ffvpx.
MozReview-Commit-ID: 1kEwEHeD1PC
--HG--
extra : rebase_source : 133fa139f5389467919b88b96b8cbbf632bf002d
clang doesn't support gcc warning options -Wdiscarded-qualifiers or -Wmaybe-uninitialized in media/ffvpxcommon.mozbuild (added in bug 1369791), so only suppress those warnings for real gcc.
warning: unknown warning option '-Wno-discarded-qualifiers'; did you mean '-Wno-ignored-qualifiers'? [-Wunknown-warning-option]
warning: unknown warning option '-Wno-maybe-uninitialized'; did you mean '-Wno-uninitialized'? [-Wunknown-warning-option]
MozReview-Commit-ID: JUEqa6AN59x
--HG--
extra : rebase_source : 45e3c43d57e58119170700f7a339d1f2dfacff2c
extra : source : ee4a75aeb3585719700e1700746ce55984eba6fa
GYP of WebRTC should reference MOZ_SYSTEM_LIBEVENT values if available.
MozReview-Commit-ID: CshsPrRidM8
--HG--
extra : rebase_source : 9e619c2f49e7c2b3f680814b95b823996773fa6c
libevent uses event.h header that is fuzzy name. Since our in-tree libevent is libevent2, we should use libevent2 headers instead of deprecated event.h
MozReview-Commit-ID: 6DjW9JEkNWL
--HG--
extra : rebase_source : b774e177b137bf7427122253a3e4c698689e08a4
This is basically a cosmetic change; references are the normal way to do string
outparams.
--HG--
extra : rebase_source : ffc5945f269bdcd3d4116755b56713e87a44b6cd
There does not seem to be any bad effects from calling stop twice, so just log that
it has happened rather than throwing an exception.
--HG--
extra : rebase_source : 0d92bad7b33010f50f41de8498b8406c3521c9e7
The race condition is between ~ScreenCapturerMac and the ScreenRefresh and
ScreenUpdateMove callbacks. The destructor calls
UnregisterRefreshAndMoveHandlers but a callback may still occur after the
destruction of the object.
Rather than passing a pointer to ScreenCapturerMac into the callback, this
adds a separate object which keeps a pointer to ScreenCapturerMac guarded
by a CriticalSection. The destructor sets the ScreenCapturerMac to nullptr.
In the next callback, the handler unregisters the callbacks and deletes
the object.
The downside to this approach is that if the ScreenCapturerMac
object is allocated and deallocated before a callback occurs, the memory
for the separate object will be leaked.
We dynamically allocate the memory we need and abort if OOM.
MozReview-Commit-ID: FMGWbOXoN8P
--HG--
extra : rebase_source : d6a28017b7c261d2c8acf2321cd30266bd8d5a35
The race condition is between ~ScreenCapturerMac and the ScreenRefresh and
ScreenUpdateMove callbacks. The destructor calls
UnregisterRefreshAndMoveHandlers but a callback may still occur after the
destruction of the object.
Rather than passing a pointer to ScreenCapturerMac into the callback, this
adds a separate object which keeps a pointer to ScreenCapturerMac guarded
by a CriticalSection. The destructor sets the ScreenCapturerMac to nullptr.
In the next callback, the handler unregisters the callbacks and deletes
the object.
The downside to this approach is that if the ScreenCapturerMac
object is allocated and deallocated before a callback occurs, the memory
for the separate object will be leaked.
When adding the length check for parsing RtpStreamId, I incorrectly used
the '<=' operator instead of the '>' operator.
MozReview-Commit-ID: 46XZBqWxkBc
--HG--
extra : rebase_source : 6290aeed489770070308aafacad01ce5b63a60a1
Wes Kocher
Michael Froman
Lennart Grahl
Sebastian Hengst
Sylvestre Ledru
Mike Hommey
Matthew Gregan
Chris Peterson
Paul Adenot
Makoto Kato
Masatoshi Kimura
Jan Beich
Nicholas Nethercote
Alex Chronopoulos
Glenn Randers-Pehrson
Dan Minor
Carsten "Tomcat" Book
Jean-Yves Avenard
Alfredo Yang
Nathan Froyd
Ryan VanderMeulen