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| 1 /* |
| 2 * Copyright (c) 2016 The WebRTC project authors. All Rights Reserved. |
| 3 * |
| 4 * Use of this source code is governed by a BSD-style license |
| 5 * that can be found in the LICENSE file in the root of the source |
| 6 * tree. An additional intellectual property rights grant can be found |
| 7 * in the file PATENTS. All contributing project authors may |
| 8 * be found in the AUTHORS file in the root of the source tree. |
| 9 */ |
| 10 |
| 11 #include <limits> |
| 12 #include <memory> |
| 13 |
| 14 #include "webrtc/modules/video_coding/utility/default_video_bitrate_allocator.h" |
| 15 #include "webrtc/test/gtest.h" |
| 16 |
| 17 namespace webrtc { |
| 18 namespace { |
| 19 uint32_t kMaxBitrateBps = 1000000; |
| 20 uint32_t kMinBitrateBps = 50000; |
| 21 uint32_t kMaxFramerate = 30; |
| 22 } // namespace |
| 23 |
| 24 class DefaultVideoBitrateAllocatorTest : public ::testing::Test { |
| 25 public: |
| 26 DefaultVideoBitrateAllocatorTest() {} |
| 27 virtual ~DefaultVideoBitrateAllocatorTest() {} |
| 28 |
| 29 void SetUp() override { |
| 30 codec_.codecType = kVideoCodecVP8; |
| 31 codec_.minBitrate = kMinBitrateBps / 1000; |
| 32 codec_.maxBitrate = kMaxBitrateBps / 1000; |
| 33 codec_.targetBitrate = (kMinBitrateBps + kMaxBitrateBps) / 2000; |
| 34 codec_.maxFramerate = kMaxFramerate; |
| 35 allocator_.reset(new DefaultVideoBitrateAllocator(codec_)); |
| 36 } |
| 37 |
| 38 protected: |
| 39 VideoCodec codec_; |
| 40 std::unique_ptr<DefaultVideoBitrateAllocator> allocator_; |
| 41 }; |
| 42 |
| 43 TEST_F(DefaultVideoBitrateAllocatorTest, ZeroIsOff) { |
| 44 BitrateAllocation allocation = allocator_->GetAllocation(0, kMaxFramerate); |
| 45 EXPECT_EQ(0u, allocation.get_sum_bps()); |
| 46 } |
| 47 |
| 48 TEST_F(DefaultVideoBitrateAllocatorTest, CapsToMin) { |
| 49 BitrateAllocation allocation = allocator_->GetAllocation(1, kMaxFramerate); |
| 50 EXPECT_EQ(kMinBitrateBps, allocation.get_sum_bps()); |
| 51 |
| 52 allocation = allocator_->GetAllocation(kMinBitrateBps - 1, kMaxFramerate); |
| 53 EXPECT_EQ(kMinBitrateBps, allocation.get_sum_bps()); |
| 54 |
| 55 allocation = allocator_->GetAllocation(kMinBitrateBps, kMaxFramerate); |
| 56 EXPECT_EQ(kMinBitrateBps, allocation.get_sum_bps()); |
| 57 } |
| 58 |
| 59 TEST_F(DefaultVideoBitrateAllocatorTest, CapsToMax) { |
| 60 BitrateAllocation allocation = |
| 61 allocator_->GetAllocation(kMaxBitrateBps, kMaxFramerate); |
| 62 EXPECT_EQ(kMaxBitrateBps, allocation.get_sum_bps()); |
| 63 |
| 64 allocation = allocator_->GetAllocation(kMaxBitrateBps + 1, kMaxFramerate); |
| 65 EXPECT_EQ(kMaxBitrateBps, allocation.get_sum_bps()); |
| 66 |
| 67 allocation = allocator_->GetAllocation(std::numeric_limits<uint32_t>::max(), |
| 68 kMaxFramerate); |
| 69 EXPECT_EQ(kMaxBitrateBps, allocation.get_sum_bps()); |
| 70 } |
| 71 |
| 72 TEST_F(DefaultVideoBitrateAllocatorTest, GoodInBetween) { |
| 73 BitrateAllocation allocation = |
| 74 allocator_->GetAllocation(kMinBitrateBps + 1, kMaxFramerate); |
| 75 EXPECT_EQ(kMinBitrateBps + 1, allocation.get_sum_bps()); |
| 76 |
| 77 allocation = allocator_->GetAllocation(kMaxBitrateBps - 1, kMaxFramerate); |
| 78 EXPECT_EQ(kMaxBitrateBps - 1, allocation.get_sum_bps()); |
| 79 } |
| 80 } // namespace webrtc |
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