blob: df5643353ecb51864cc636a3629f865865409892 [file] [log] [blame]
/*
* 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 <limits>
#include <memory>
#include "webrtc/modules/video_coding/utility/default_video_bitrate_allocator.h"
#include "webrtc/test/gtest.h"
namespace webrtc {
namespace {
uint32_t kMaxBitrateBps = 1000000;
uint32_t kMinBitrateBps = 50000;
uint32_t kMaxFramerate = 30;
} // namespace
class DefaultVideoBitrateAllocatorTest : public ::testing::Test {
public:
DefaultVideoBitrateAllocatorTest() {}
virtual ~DefaultVideoBitrateAllocatorTest() {}
void SetUp() override {
codec_.codecType = kVideoCodecVP8;
codec_.minBitrate = kMinBitrateBps / 1000;
codec_.maxBitrate = kMaxBitrateBps / 1000;
codec_.targetBitrate = (kMinBitrateBps + kMaxBitrateBps) / 2000;
codec_.maxFramerate = kMaxFramerate;
allocator_.reset(new DefaultVideoBitrateAllocator(codec_));
}
protected:
VideoCodec codec_;
std::unique_ptr<DefaultVideoBitrateAllocator> allocator_;
};
TEST_F(DefaultVideoBitrateAllocatorTest, ZeroIsOff) {
BitrateAllocation allocation = allocator_->GetAllocation(0, kMaxFramerate);
EXPECT_EQ(0u, allocation.get_sum_bps());
}
TEST_F(DefaultVideoBitrateAllocatorTest, CapsToMin) {
BitrateAllocation allocation = allocator_->GetAllocation(1, kMaxFramerate);
EXPECT_EQ(kMinBitrateBps, allocation.get_sum_bps());
allocation = allocator_->GetAllocation(kMinBitrateBps - 1, kMaxFramerate);
EXPECT_EQ(kMinBitrateBps, allocation.get_sum_bps());
allocation = allocator_->GetAllocation(kMinBitrateBps, kMaxFramerate);
EXPECT_EQ(kMinBitrateBps, allocation.get_sum_bps());
}
TEST_F(DefaultVideoBitrateAllocatorTest, CapsToMax) {
BitrateAllocation allocation =
allocator_->GetAllocation(kMaxBitrateBps, kMaxFramerate);
EXPECT_EQ(kMaxBitrateBps, allocation.get_sum_bps());
allocation = allocator_->GetAllocation(kMaxBitrateBps + 1, kMaxFramerate);
EXPECT_EQ(kMaxBitrateBps, allocation.get_sum_bps());
allocation = allocator_->GetAllocation(std::numeric_limits<uint32_t>::max(),
kMaxFramerate);
EXPECT_EQ(kMaxBitrateBps, allocation.get_sum_bps());
}
TEST_F(DefaultVideoBitrateAllocatorTest, GoodInBetween) {
BitrateAllocation allocation =
allocator_->GetAllocation(kMinBitrateBps + 1, kMaxFramerate);
EXPECT_EQ(kMinBitrateBps + 1, allocation.get_sum_bps());
allocation = allocator_->GetAllocation(kMaxBitrateBps - 1, kMaxFramerate);
EXPECT_EQ(kMaxBitrateBps - 1, allocation.get_sum_bps());
}
} // namespace webrtc