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Markus Handell 5932fe1392 RtpTransceiverInterface: introduce HeaderExtensionsNegotiated. 
This changes adds exposure of a new transceiver method for
accessing header extensions that have been negotiated, following
spec details in https://w3c.github.io/webrtc-extensions/#rtcrtptransceiver-interface.

The change contains unit tests testing the functionality.

Note: support for signalling directionality of header extensions
in the SDP isn't implemented yet.

https://chromestatus.com/feature/5680189201711104.
Intent to prototype: https://groups.google.com/a/chromium.org/g/blink-dev/c/65YdUi02yZk

Bug: chromium:1051821
Change-Id: If963beed37e96eed2dff3a2822db4e30caaea4a0
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/198126
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Commit-Queue: Markus Handell <handellm@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#32860}
2020-12-17 23:43:42 +00:00
..
adaptation Introduce RTC_CHECK_NOTREACHED(), an always-checking RTC_NOTREACHED() 2020-11-09 10:47:55 +00:00
audio AEC3: Prevent diverging coarse filter from influencing the refined filter 2020-12-08 15:05:23 +00:00
audio_codecs Remove kwiberg@webrtc.org from OWNERS files 2020-12-04 15:11:26 +00:00
call Enable congestion window pushback to reduce bitrate by only drop video frames. 2020-02-07 14:14:47 +00:00
crypto frame encryptor: remove note about not being production ready 2020-07-31 06:49:29 +00:00
neteq Add a "Smart flushing" feature to NetEq. 2020-11-26 11:20:28 +00:00
numerics Introduce debug network stats 2020-09-23 09:40:25 +00:00
rtc_event_log Add kill-switch to RTC event log factory. 2020-11-05 14:08:02 +00:00
stats stats: add transportId to codec stats 2020-11-17 12:34:39 +00:00
task_queue suppress 'Paramaterized test suite never instantiated' warning 2020-06-09 13:31:49 +00:00
test VideoCodecTextFixture and YuvFrameReader improvements. 2020-12-15 23:18:06 +00:00
transport Relax check for unknown STUN attribute lengths 2020-12-04 10:47:06 +00:00
units Rename UNIT_TEST to WEBRTC_UNIT_TEST 2020-12-10 11:04:58 +00:00
video Remove EncodedFrame::inter_layer_predicted. 2020-12-10 18:11:49 +00:00
video_codecs Make video scalability mode configurable from peerconnection level. 2020-11-18 12:06:03 +00:00
voip Enforcing return type handling on VoIP API. 2020-12-11 20:38:15 +00:00
array_view.h rtc::ArrayView reverse iterators 2020-10-21 08:57:13 +00:00
array_view_unittest.cc rtc::ArrayView reverse iterators 2020-10-21 08:57:13 +00:00
async_resolver_factory.h (4) Rename files to snake_case: update BUILD.gn, include paths, header guards, and DEPS entries 2019-01-11 17:11:39 +00:00
audio_options.cc Remove deprecated code related to AEC2 2019-08-07 10:09:36 +00:00
audio_options.h Add RtpEncodingParameters.adaptive_ptime. 2020-06-25 14:51:13 +00:00
BUILD.gn Add publicly visible mock for RtpTransceiverInterface 2020-11-05 23:56:19 +00:00
candidate.cc (4) Rename files to snake_case: update BUILD.gn, include paths, header guards, and DEPS entries 2019-01-11 17:11:39 +00:00
candidate.h (4) Rename files to snake_case: update BUILD.gn, include paths, header guards, and DEPS entries 2019-01-11 17:11:39 +00:00
create_peerconnection_factory.cc Async audio processing API 2020-10-02 12:33:34 +00:00
create_peerconnection_factory.h Async audio processing API 2020-10-02 12:33:34 +00:00
crypto_params.h (4) Rename files to snake_case: update BUILD.gn, include paths, header guards, and DEPS entries 2019-01-11 17:11:39 +00:00
data_channel_interface.cc Datachannel: Use absl::optional for maxRetransmits and maxRetransmitTime. 2019-04-09 08:32:43 +00:00
data_channel_interface.h Pass datachannel priority in DC open messages 2020-05-17 10:57:27 +00:00
DEPS Reland "Pass NetworkMonitorFactory through PeerConnectionFactory." 2020-08-01 00:36:27 +00:00
DESIGN.md A threading explanation 2019-06-03 08:15:09 +00:00
dtls_transport_interface.cc Expose TLS version and SRTP cipher to API 2019-10-29 22:20:49 +00:00
dtls_transport_interface.h Expose TLS version and SRTP cipher to API 2019-10-29 22:20:49 +00:00
dtmf_sender_interface.h Allow DTMF delay configurability 2020-01-22 20:46:52 +00:00
fec_controller.h Make VideoFrameType an enum class, and move to separate file and target 2019-03-22 12:44:51 +00:00
fec_controller_override.h Define FecControllerOverride and plumb it down to VideoEncoder 2019-06-28 15:57:22 +00:00
frame_transformer_interface.h Reland "Make TransformableVideoFrameInterface::GetMetadata pure virtual." 2020-05-18 17:53:38 +00:00
function_view.h Move rtc::FunctionView to the public API 2019-03-21 15:23:05 +00:00
function_view_unittest.cc Format almost everything. 2019-07-08 13:45:15 +00:00
ice_transport_factory.cc Use std::make_unique instead of absl::make_unique. 2019-09-17 15:47:29 +00:00
ice_transport_factory.h Make ICE transports injectable. 2019-11-15 21:31:19 +00:00
ice_transport_interface.h Make ICE transports injectable. 2019-11-15 21:31:19 +00:00
jsep.cc Reland "Remove old-style OnFailure callbacks" 2020-02-21 14:07:57 +00:00
jsep.h Declare the Clone operator of SessionDescriptionInterface as const. 2020-12-17 21:01:37 +00:00
jsep_ice_candidate.cc Use unique_ptr in JsepCandidateCollection 2019-07-31 01:48:07 +00:00
jsep_ice_candidate.h Use unique_ptr in JsepCandidateCollection 2019-07-31 01:48:07 +00:00
jsep_session_description.h Declare the Clone operator of SessionDescriptionInterface as const. 2020-12-17 21:01:37 +00:00
media_stream_interface.cc New target for api/rtp_parameters.h and api/media_types.h. 2019-08-29 09:04:32 +00:00
media_stream_interface.h Surface the number of encoded channels 2020-12-15 16:38:04 +00:00
media_stream_proxy.h Avoid proxy thread hops for reading const properties. 2020-09-10 13:11:44 +00:00
media_stream_track.h Move pc/media_stream_track.h to the api/ directory 2020-10-12 07:28:01 +00:00
media_stream_track_proxy.h Avoid proxy thread hops for reading const properties. 2020-09-10 13:11:44 +00:00
media_types.cc Introduce RTC_CHECK_NOTREACHED(), an always-checking RTC_NOTREACHED() 2020-11-09 10:47:55 +00:00
media_types.h Reland "introduce an unsupported content description type" 2020-10-21 08:20:05 +00:00
network_state_predictor.h Add base class NetworkPredictor and NetworkPredictorFactory and wire up. 2019-04-10 12:38:58 +00:00
notifier.h (4) Rename files to snake_case: update BUILD.gn, include paths, header guards, and DEPS entries 2019-01-11 17:11:39 +00:00
OWNERS Remove kwiberg@webrtc.org from OWNERS files 2020-12-04 15:11:26 +00:00
packet_socket_factory.h Prepare to move packet_socket_factory to api/. 2019-09-06 09:09:02 +00:00
peer_connection_factory_proxy.h Remember the proxies 2020-11-27 12:51:54 +00:00
peer_connection_interface.cc Add create function for PeerConnection that can return an error. 2020-11-27 11:08:10 +00:00
peer_connection_interface.h Add create function for PeerConnection that can return an error. 2020-11-27 11:08:10 +00:00
peer_connection_proxy.h [Perfect Negotiation] Fire onnegotiationneeded when chain is empty. 2020-08-25 09:56:39 +00:00
priority.h Pass datachannel priority in DC open messages 2020-05-17 10:57:27 +00:00
proxy.cc Make MessageHandler cleanup optional. 2020-09-07 12:57:15 +00:00
proxy.h Make MessageHandler cleanup optional. 2020-09-07 12:57:15 +00:00
README.md Add a small README file for api/ 2019-02-01 13:24:47 +00:00
ref_counted_base.h (4) Rename files to snake_case: update BUILD.gn, include paths, header guards, and DEPS entries 2019-01-11 17:11:39 +00:00
rtc_error.cc Return an error when datachannel closes due to network error 2019-12-08 17:33:54 +00:00
rtc_error.h Rename UNIT_TEST to WEBRTC_UNIT_TEST 2020-12-10 11:04:58 +00:00
rtc_error_unittest.cc Format almost everything. 2019-07-08 13:45:15 +00:00
rtc_event_log_output.h Adds functionality to write logs to memory. 2019-01-16 17:36:31 +00:00
rtc_event_log_output_file.cc Format almost everything. 2019-07-08 13:45:15 +00:00
rtc_event_log_output_file.h Format almost everything. 2019-07-08 13:45:15 +00:00
rtc_event_log_output_file_unittest.cc Rename several more tests that use EXPECT_DEATH to *DeathTest. 2020-05-18 16:10:04 +00:00
rtp_headers.cc Remove framemarking RTP extension. 2020-06-15 11:18:00 +00:00
rtp_headers.h Rename PlayoutDelay --> VideoPlayoutDelay, move to api/video/video_timing.h 2020-09-07 08:37:14 +00:00
rtp_packet_info.cc Remove deprecated RtpPacketInfo::RtpPacketInfo. 2020-04-14 10:59:44 +00:00
rtp_packet_info.h Remove deprecated RtpPacketInfo::RtpPacketInfo. 2020-04-14 10:59:44 +00:00
rtp_packet_info_unittest.cc Add AbsoluteCaptureTime to RtpPacketInfo. 2019-08-07 10:12:56 +00:00
rtp_packet_infos.h Add RtpPacketInfo and RtpPacketInfos to RTC_EXPORT 2020-01-21 12:11:41 +00:00
rtp_packet_infos_unittest.cc Add AbsoluteCaptureTime to RtpPacketInfo. 2019-08-07 10:12:56 +00:00
rtp_parameters.cc Introduce RTC_CHECK_NOTREACHED(), an always-checking RTC_NOTREACHED() 2020-11-09 10:47:55 +00:00
rtp_parameters.h Make video scalability mode configurable from peerconnection level. 2020-11-18 12:06:03 +00:00
rtp_parameters_unittest.cc Format almost everything. 2019-07-08 13:45:15 +00:00
rtp_receiver_interface.cc Insert frame transformer between Depacketizer and Decoder. 2020-03-02 08:33:44 +00:00
rtp_receiver_interface.h Avoid proxy thread hops for reading const properties. 2020-09-10 13:11:44 +00:00
rtp_sender_interface.cc Insert frame transformer between Encoded and Packetizer. 2020-02-28 07:43:13 +00:00
rtp_sender_interface.h Avoid proxy thread hops for reading const properties. 2020-09-10 13:11:44 +00:00
rtp_transceiver_direction.h RtpTransceiverInterface: add header_extensions_to_offer() 2020-03-16 13:16:42 +00:00
rtp_transceiver_interface.cc RtpTransceiverInterface: introduce HeaderExtensionsNegotiated. 2020-12-17 23:43:42 +00:00
rtp_transceiver_interface.h RtpTransceiverInterface: introduce HeaderExtensionsNegotiated. 2020-12-17 23:43:42 +00:00
scoped_refptr.h Mark scoped_refptr move and swap operations as noexcept 2019-11-12 10:17:22 +00:00
scoped_refptr_unittest.cc Mark scoped_refptr move and swap operations as noexcept 2019-11-12 10:17:22 +00:00
sctp_transport_interface.cc Format almost everything. 2019-07-08 13:45:15 +00:00
sctp_transport_interface.h Export symbols needed by the Chromium component build (part 8). 2019-04-02 10:13:36 +00:00
set_local_description_observer_interface.h Reland "[Perfect Negotiation] Implement non-racy version of SetLocalDescription." 2020-07-29 11:27:43 +00:00
set_remote_description_observer_interface.h (4) Rename files to snake_case: update BUILD.gn, include paths, header guards, and DEPS entries 2019-01-11 17:11:39 +00:00
stats_types.cc Reporting audio device underrun counter 2019-08-16 11:49:55 +00:00
stats_types.h RTC_EXPORT IceServer, StatsReport::{IdBase,Value}. 2019-11-12 12:52:25 +00:00
turn_customizer.h (4) Rename files to snake_case: update BUILD.gn, include paths, header guards, and DEPS entries 2019-01-11 17:11:39 +00:00
uma_metrics.h uma_metrics: clean up and follow histogram recommendations 2020-11-04 10:48:49 +00:00
video_track_source_proxy.h Avoid proxy thread hops for reading const properties. 2020-09-10 13:11:44 +00:00

README.md

How to write code in the api/ directory

Mostly, just follow the regular style guide, but:

  • Note that api/ code is not exempt from the “.h and .cc files come in pairs” rule, so if you declare something in api/path/to/foo.h, it should be defined in api/path/to/foo.cc.
  • Headers in api/ should, if possible, not #include headers outside api/. It’s not always possible to avoid this, but be aware that it adds to a small mountain of technical debt that we’re trying to shrink.
  • .cc files in api/, on the other hand, are free to #include headers outside api/.

That is, the preferred way for api/ code to access non-api/ code is to call it from a .cc file, so that users of our API headers won’t transitively #include non-public headers.

For headers in api/ that need to refer to non-public types, forward declarations are often a lesser evil than including non-public header files. The usual rules still apply, though.

.cc files in api/ should preferably be kept reasonably small. If a substantial implementation is needed, consider putting it with our non-public code, and just call it from the api/ .cc file.