Refactor FEC code to use COW buffers

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

This CL is the first stage of refactoring: it only replaces
|uint8 data[IP_PACKET_SIZE]| with |rtc::CopyOnWriteBuffer data| and does
necessary changes.

A follow-up CL will remove length field of the Packet class.


Bug: webrtc:10750
Change-Id: Ie233da83ff33f6370f511955e4c65d59522389a7
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/144881
Reviewed-by: Artem Titov <titovartem@webrtc.org>
Reviewed-by: Stefan Holmer <stefan@webrtc.org>
Reviewed-by: Rasmus Brandt <brandtr@webrtc.org>
Commit-Queue: Ilya Nikolaevskiy <ilnik@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#28539}
This commit is contained in:
Ilya Nikolaevskiy
2019-07-10 11:28:04 +02:00
committed by Commit Bot
parent 1300ce12e8
commit 7325bc3917
24 changed files with 199 additions and 159 deletions

View File

@ -126,16 +126,16 @@ void UlpfecReceiverTest::BuildAndAddRedMediaPacket(AugmentedPacket* packet) {
std::unique_ptr<AugmentedPacket> red_packet(
packet_generator_.BuildMediaRedPacket(*packet));
EXPECT_EQ(0, receiver_fec_->AddReceivedRedPacket(
red_packet->header, red_packet->data, red_packet->length,
kFecPayloadType));
red_packet->header, red_packet->data.cdata(),
red_packet->length, kFecPayloadType));
}
void UlpfecReceiverTest::BuildAndAddRedFecPacket(Packet* packet) {
std::unique_ptr<AugmentedPacket> red_packet(
packet_generator_.BuildUlpfecRedPacket(*packet));
EXPECT_EQ(0, receiver_fec_->AddReceivedRedPacket(
red_packet->header, red_packet->data, red_packet->length,
kFecPayloadType));
red_packet->header, red_packet->data.cdata(),
red_packet->length, kFecPayloadType));
}
void UlpfecReceiverTest::VerifyReconstructedMediaPacket(
@ -145,7 +145,7 @@ void UlpfecReceiverTest::VerifyReconstructedMediaPacket(
// content of |packet|, and that the same content is received |times| number
// of times in a row.
EXPECT_CALL(recovered_packet_receiver_, OnRecoveredPacket(_, packet.length))
.With(Args<0, 1>(ElementsAreArray(packet.data, packet.length)))
.With(Args<0, 1>(ElementsAreArray(packet.data.cdata(), packet.length)))
.Times(times);
}