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5987f2a9ae
Bug: None Change-Id: Ie71ea6e98852360940b004fe051044d68c5b299d Reviewed-on: https://webrtc-review.googlesource.com/71200 Reviewed-by: Tommi <tommi@webrtc.org> Commit-Queue: Tommi <tommi@webrtc.org> Cr-Commit-Position: refs/heads/master@{#22983}
82 lines
2.6 KiB
C++
82 lines
2.6 KiB
C++
/*
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* Copyright (c) 2018 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "modules/rtp_rtcp/source/fec_private_tables_bursty.h"
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#include "modules/rtp_rtcp/source/fec_private_tables_random.h"
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#include "modules/rtp_rtcp/source/forward_error_correction_internal.h"
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#include "test/gtest.h"
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namespace webrtc {
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namespace {
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constexpr uint8_t kMaskRandom15_6[] = {0x82, 0x08, 0x41, 0x04, 0x20, 0x82,
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0x10, 0x40, 0x08, 0x20, 0x04, 0x10};
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}
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namespace fec_private_tables {
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using internal::LookUpInFecTable;
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TEST(FecTable, TestBurstyLookup) {
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rtc::ArrayView<const uint8_t> result;
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result = LookUpInFecTable(&kPacketMaskBurstyTbl[0], 0, 0);
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// Should match kMaskBursty1_1.
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EXPECT_EQ(2u, result.size());
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EXPECT_EQ(0x80u, result[0]);
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result = LookUpInFecTable(&kPacketMaskBurstyTbl[0], 3, 0);
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// Should match kMaskBursty4_1.
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EXPECT_EQ(2u, result.size());
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EXPECT_EQ(0xf0u, result[0]);
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EXPECT_EQ(0x00u, result[1]);
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result = LookUpInFecTable(&kPacketMaskBurstyTbl[0], 1, 1);
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// Should match kMaskBursty2_2.
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EXPECT_EQ(4u, result.size());
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EXPECT_EQ(0x80u, result[0]);
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EXPECT_EQ(0xc0u, result[2]);
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result = LookUpInFecTable(&kPacketMaskBurstyTbl[0], 11, 11);
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// Should match kMaskBursty12_12.
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EXPECT_EQ(24u, result.size());
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EXPECT_EQ(0x80u, result[0]);
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EXPECT_EQ(0x30u, result[23]);
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}
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TEST(FecTable, TestRandomLookup) {
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rtc::ArrayView<const uint8_t> result;
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result = LookUpInFecTable(&kPacketMaskRandomTbl[0], 0, 0);
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EXPECT_EQ(2u, result.size());
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EXPECT_EQ(0x80u, result[0]);
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EXPECT_EQ(0x00u, result[1]);
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result = LookUpInFecTable(&kPacketMaskRandomTbl[0], 4, 1);
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// kMaskRandom5_2.
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EXPECT_EQ(4u, result.size());
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EXPECT_EQ(0xa8u, result[0]);
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EXPECT_EQ(0xd0u, result[2]);
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}
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TEST(FecTable, TestRandomGenerated) {
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FecMaskType fec_mask_type = kFecMaskRandom;
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int num_media_packets = 15;
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int num_fec_packets = 6;
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size_t mask_size = sizeof(kMaskRandom15_6) / sizeof(uint8_t);
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internal::PacketMaskTable mask_table(fec_mask_type, num_media_packets);
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rtc::ArrayView<const uint8_t> mask =
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mask_table.LookUp(num_media_packets, num_fec_packets);
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EXPECT_EQ(mask.size(), mask_size);
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for (size_t i = 0; i < mask_size; ++i) {
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EXPECT_EQ(mask[i], kMaskRandom15_6[i]);
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}
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}
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} // namespace fec_private_tables
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} // namespace webrtc
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