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Revert "RtpTransceiverInterface: introduce SetOfferedRtpHeaderExtensions."

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This reverts commit 71db9acc4019b8c9c13b14e6a022cbb3b4255b09.

Reason for revert: breaks downstream project.
Reason for force push: win bot broken.

Original change's description:
> RtpTransceiverInterface: introduce SetOfferedRtpHeaderExtensions.
>
> This change adds exposure of a new transceiver method for
> modifying the extensions offered in the next SDP negotiation,
> following spec details in https://w3c.github.io/webrtc-extensions/#rtcrtptransceiver-interface.
>
> Features:
> - The interface allows to control the negotiated direction as
>   per https://tools.ietf.org/html/rfc5285#page-7.
> - The interface allows to remove an extension from SDP
>   negotiation by modifying the direction to
>   RtpTransceiverDirection::kStopped.
>
> 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: Iaabc34446f038c46d93c442e90c2a77f77d542d4
> Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/176408
> Reviewed-by: Harald Alvestrand <hta@webrtc.org>
> Commit-Queue: Markus Handell <handellm@webrtc.org>
> Cr-Commit-Position: refs/heads/master@{#31487}

TBR=hta@webrtc.org,handellm@webrtc.org

# Not skipping CQ checks because original CL landed > 1 day ago.

No-Try: true
Bug: chromium:1051821
Change-Id: I70e1a07225d7eeec7480fa5577d8ff647eba6902
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/177103
Commit-Queue: Markus Handell <handellm@webrtc.org>
Reviewed-by: Markus Handell <handellm@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#31516}
This commit is contained in:
Markus Handell
2020-06-12 15:24:54 +00:00
committed by Commit Bot
parent 4d11c02ad3
commit 6f727da62b
11 changed files with 208 additions and 558 deletions
Download Patch File Download Diff File Expand all files Collapse all files

48
pc/rtp_transceiver.cc
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@ -114,7 +114,7 @@ RtpTransceiver::RtpTransceiver(
: unified_plan_(true),
media_type_(sender->media_type()),
channel_manager_(channel_manager),
header_extensions_to_offer_(std::move(header_extensions_offered)) {
HeaderExtensionsToOffer_(std::move(header_extensions_offered)) {
RTC_DCHECK(media_type_ == cricket::MEDIA_TYPE_AUDIO ||
media_type_ == cricket::MEDIA_TYPE_VIDEO);
RTC_DCHECK_EQ(sender->media_type(), receiver->media_type());
@ -356,51 +356,7 @@ RTCError RtpTransceiver::SetCodecPreferences(
std::vector<RtpHeaderExtensionCapability>
RtpTransceiver::HeaderExtensionsToOffer() const {
return header_extensions_to_offer_;
}
RTCError RtpTransceiver::SetOfferedRtpHeaderExtensions(
rtc::ArrayView<const RtpHeaderExtensionCapability>
header_extensions_to_offer) {
for (const auto& entry : header_extensions_to_offer) {
// Handle unsupported requests for mandatory extensions as per
// https://w3c.github.io/webrtc-extensions/#rtcrtptransceiver-interface.
// Note:
// - We do not handle setOfferedRtpHeaderExtensions algorithm step 2.1,
// this has to be checked on a higher level. We naturally error out
// in the handling of Step 2.2 if an unset URI is encountered.
// Step 2.2.
// Handle unknown extensions.
auto it = std::find_if(
header_extensions_to_offer_.begin(), header_extensions_to_offer_.end(),
[&entry](const auto& offered) { return entry.uri == offered.uri; });
if (it == header_extensions_to_offer_.end()) {
return RTCError(RTCErrorType::INVALID_PARAMETER,
"Attempted to modify an unoffered extension.");
}
// Step 2.4-2.5.
// - Use of the transceiver interface indicates unified plan is in effect,
// hence the MID extension needs to be enabled.
// - Also handle the mandatory video orientation extensions.
if ((entry.uri == RtpExtension::kMidUri ||
entry.uri == RtpExtension::kVideoRotationUri) &&
entry.direction != RtpTransceiverDirection::kSendRecv) {
return RTCError(RTCErrorType::INVALID_MODIFICATION,
"Attempted to stop a mandatory extension.");
}
}
// Apply mutation after error checking.
for (const auto& entry : header_extensions_to_offer) {
auto it = std::find_if(
header_extensions_to_offer_.begin(), header_extensions_to_offer_.end(),
[&entry](const auto& offered) { return entry.uri == offered.uri; });
it->direction = entry.direction;
}
return RTCError::OK();
return HeaderExtensionsToOffer_;
}
} // namespace webrtc