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Refactor FEC code to use COW buffers

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This refactoring helps to reduce unnecessary memcpy calls on the receive
side.

This CL replaces
|uint8 data[IP_PACKET_SIZE]| with |rtc::CopyOnWriteBuffer data| in Packet class,
removes |length| field there, and does necessary changes.

This is a reland of these two CLs with fixes:
https://webrtc-review.googlesource.com/c/src/+/144942
https://webrtc-review.googlesource.com/c/src/+/144881

Bug: webrtc:10750
Change-Id: I76f6dee5a57ade59942ea2822ca4737edfe6438b
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/145332
Commit-Queue: Ilya Nikolaevskiy <ilnik@webrtc.org>
Reviewed-by: Rasmus Brandt <brandtr@webrtc.org>
Reviewed-by: Stefan Holmer <stefan@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#29035}
This commit is contained in:
Ilya Nikolaevskiy
2019-09-02 13:58:49 +02:00
committed by Commit Bot
parent a66395e72f
commit eec5fff4df
25 changed files with 357 additions and 328 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
modules/rtp_rtcp/source/flexfec_sender_unittest.cc
View File

@ -62,7 +62,7 @@ std::unique_ptr<RtpPacketToSend> GenerateSingleFlexfecPacket(
std::unique_ptr<AugmentedPacket> packet =
packet_generator.NextPacket(i, kPayloadLength);
RtpPacketToSend rtp_packet(nullptr); // No header extensions.
rtp_packet.Parse(packet->data, packet->length);
rtp_packet.Parse(packet->data);
EXPECT_TRUE(sender->AddRtpPacketAndGenerateFec(rtp_packet));
}
EXPECT_TRUE(sender->FecAvailable());
@ -133,7 +133,7 @@ TEST(FlexfecSenderTest, ProtectTwoFramesWithOneFecPacket) {
std::unique_ptr<AugmentedPacket> packet =
packet_generator.NextPacket(i, kPayloadLength);
RtpPacketToSend rtp_packet(nullptr);
rtp_packet.Parse(packet->data, packet->length);
rtp_packet.Parse(packet->data);
EXPECT_TRUE(sender.AddRtpPacketAndGenerateFec(rtp_packet));
}
}
@ -173,7 +173,7 @@ TEST(FlexfecSenderTest, ProtectTwoFramesWithTwoFecPackets) {
std::unique_ptr<AugmentedPacket> packet =
packet_generator.NextPacket(i, kPayloadLength);
RtpPacketToSend rtp_packet(nullptr);
rtp_packet.Parse(packet->data, packet->length);
rtp_packet.Parse(packet->data);
EXPECT_TRUE(sender.AddRtpPacketAndGenerateFec(rtp_packet));
}
EXPECT_TRUE(sender.FecAvailable());