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/*
* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "modules/rtp_rtcp/source/rtcp_packet/tmmbn.h"
#include <cstdint>
#include "modules/rtp_rtcp/source/rtcp_packet/tmmb_item.h"
#include "rtc_base/buffer.h"
#include "test/gmock.h"
#include "test/gtest.h"
#include "test/rtcp_packet_parser.h"
using ::testing::ElementsAreArray;
using ::testing::IsEmpty;
using ::testing::make_tuple;
using webrtc::rtcp::TmmbItem;
using webrtc::rtcp::Tmmbn;
namespace webrtc {
namespace {
const uint32_t kSenderSsrc = 0x12345678;
const uint32_t kRemoteSsrc = 0x23456789;
const uint32_t kBitrateBps = 312000;
const uint16_t kOverhead = 0x1fe;
const uint8_t kPacket[] = {0x84, 205, 0x00, 0x04, 0x12, 0x34, 0x56,
0x78, 0x00, 0x00, 0x00, 0x00, 0x23, 0x45,
0x67, 0x89, 0x0a, 0x61, 0x61, 0xfe};
} // namespace
TEST(RtcpPacketTmmbnTest, Create) {
Tmmbn tmmbn;
tmmbn.SetSenderSsrc(kSenderSsrc);
tmmbn.AddTmmbr(TmmbItem(kRemoteSsrc, kBitrateBps, kOverhead));
Buffer packet = tmmbn.Build();
EXPECT_THAT(make_tuple(packet.data(), packet.size()),
ElementsAreArray(kPacket));
}
TEST(RtcpPacketTmmbnTest, Parse) {
Tmmbn tmmbn;
EXPECT_TRUE(test::ParseSinglePacket(kPacket, &tmmbn));
const Tmmbn& parsed = tmmbn;
EXPECT_EQ(kSenderSsrc, parsed.sender_ssrc());
ASSERT_EQ(1u, parsed.items().size());
EXPECT_EQ(kRemoteSsrc, parsed.items().front().ssrc());
EXPECT_EQ(kBitrateBps, parsed.items().front().bitrate_bps());
EXPECT_EQ(kOverhead, parsed.items().front().packet_overhead());
}
TEST(RtcpPacketTmmbnTest, CreateAndParseWithoutItems) {
Tmmbn tmmbn;
tmmbn.SetSenderSsrc(kSenderSsrc);
Buffer packet = tmmbn.Build();
Tmmbn parsed;
EXPECT_TRUE(test::ParseSinglePacket(packet, &parsed));
EXPECT_EQ(kSenderSsrc, parsed.sender_ssrc());
EXPECT_THAT(parsed.items(), IsEmpty());
}
TEST(RtcpPacketTmmbnTest, CreateAndParseWithTwoItems) {
Tmmbn tmmbn;
tmmbn.SetSenderSsrc(kSenderSsrc);
tmmbn.AddTmmbr(TmmbItem(kRemoteSsrc, kBitrateBps, kOverhead));
tmmbn.AddTmmbr(TmmbItem(kRemoteSsrc + 1, 4 * kBitrateBps, 40));
Buffer packet = tmmbn.Build();
Tmmbn parsed;
EXPECT_TRUE(test::ParseSinglePacket(packet, &parsed));
EXPECT_EQ(kSenderSsrc, parsed.sender_ssrc());
EXPECT_EQ(2u, parsed.items().size());
EXPECT_EQ(kRemoteSsrc, parsed.items()[0].ssrc());
EXPECT_EQ(kBitrateBps, parsed.items()[0].bitrate_bps());
EXPECT_EQ(kOverhead, parsed.items()[0].packet_overhead());
EXPECT_EQ(kRemoteSsrc + 1, parsed.items()[1].ssrc());
EXPECT_EQ(4 * kBitrateBps, parsed.items()[1].bitrate_bps());
EXPECT_EQ(40U, parsed.items()[1].packet_overhead());
}
TEST(RtcpPacketTmmbnTest, ParseFailsOnTooSmallPacket) {
const uint8_t kSmallPacket[] = {0x84, 205, 0x00, 0x01,
0x12, 0x34, 0x56, 0x78};
Tmmbn tmmbn;
EXPECT_FALSE(test::ParseSinglePacket(kSmallPacket, &tmmbn));
}
TEST(RtcpPacketTmmbnTest, ParseFailsOnUnAlignedPacket) {
const uint8_t kUnalignedPacket[] = {0x84, 205, 0x00, 0x03, 0x12, 0x34,
0x56, 0x78, 0x00, 0x00, 0x00, 0x00,
0x23, 0x45, 0x67, 0x89};
Tmmbn tmmbn;
EXPECT_FALSE(test::ParseSinglePacket(kUnalignedPacket, &tmmbn));
}
} // namespace webrtc
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