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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "media/base/buffers.h"
#include "media/base/decoder_buffer.h"
#include "media/base/decoder_buffer_queue.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace media {
static base::TimeDelta ToTimeDelta(int seconds) {
if (seconds < 0)
return kNoTimestamp();
return base::TimeDelta::FromSeconds(seconds);
}
// Helper to create buffers with specified timestamp in seconds.
//
// Negative numbers will be converted to kNoTimestamp();
static scoped_refptr<DecoderBuffer> CreateBuffer(int timestamp) {
scoped_refptr<DecoderBuffer> buffer = new DecoderBuffer(0);
buffer->set_timestamp(ToTimeDelta(timestamp));
buffer->set_duration(ToTimeDelta(0));
return buffer;
}
static scoped_refptr<DecoderBuffer> CreateBuffer(int timestamp, int size) {
scoped_refptr<DecoderBuffer> buffer = new DecoderBuffer(size);
buffer->set_timestamp(ToTimeDelta(timestamp));
buffer->set_duration(ToTimeDelta(0));
return buffer;
}
TEST(DecoderBufferQueueTest, IsEmpty) {
DecoderBufferQueue queue;
EXPECT_TRUE(queue.IsEmpty());
queue.Push(CreateBuffer(0));
EXPECT_FALSE(queue.IsEmpty());
}
TEST(DecoderBufferQueueTest, Clear) {
DecoderBufferQueue queue;
queue.Push(CreateBuffer(0));
queue.Push(CreateBuffer(1));
EXPECT_FALSE(queue.IsEmpty());
EXPECT_EQ(1, queue.Duration().InSeconds());
queue.Clear();
EXPECT_TRUE(queue.IsEmpty());
EXPECT_EQ(0, queue.Duration().InSeconds());
}
TEST(DecoderBufferQueueTest, Duration) {
DecoderBufferQueue queue;
EXPECT_EQ(0, queue.Duration().InSeconds());
queue.Push(CreateBuffer(0));
EXPECT_EQ(0, queue.Duration().InSeconds());
queue.Push(CreateBuffer(1));
EXPECT_EQ(1, queue.Duration().InSeconds());
queue.Push(CreateBuffer(2));
EXPECT_EQ(2, queue.Duration().InSeconds());
queue.Push(CreateBuffer(4));
EXPECT_EQ(4, queue.Duration().InSeconds());
queue.Pop();
EXPECT_EQ(3, queue.Duration().InSeconds());
queue.Pop();
EXPECT_EQ(2, queue.Duration().InSeconds());
queue.Pop();
EXPECT_EQ(0, queue.Duration().InSeconds());
queue.Pop();
EXPECT_EQ(0, queue.Duration().InSeconds());
}
TEST(DecoderBufferQueueTest, Duration_OutOfOrder) {
DecoderBufferQueue queue;
queue.Push(CreateBuffer(10));
queue.Push(CreateBuffer(12));
EXPECT_EQ(2, queue.Duration().InSeconds());
// Out of order: duration shouldn't change.
queue.Push(CreateBuffer(8));
EXPECT_EQ(2, queue.Duration().InSeconds());
// Removing first buffer should leave the second buffer as the only buffer
// included in the duration calculation.
queue.Pop();
EXPECT_EQ(0, queue.Duration().InSeconds());
// Removing second buffer leaves the out-of-order buffer. It shouldn't be
// included in duration calculations.
queue.Pop();
EXPECT_EQ(0, queue.Duration().InSeconds());
// Push a still-too-early buffer. It shouldn't be included in duration
// calculations.
queue.Push(CreateBuffer(11));
EXPECT_EQ(0, queue.Duration().InSeconds());
// Push a buffer that's after the earliest valid time. It's a singular valid
// buffer so duration is still zero.
queue.Push(CreateBuffer(14));
EXPECT_EQ(0, queue.Duration().InSeconds());
// Push a second valid buffer. We should now have a duration.
queue.Push(CreateBuffer(17));
EXPECT_EQ(3, queue.Duration().InSeconds());
}
TEST(DecoderBufferQueueTest, Duration_NoTimestamp) {
// Buffers with no timestamp don't affect duration.
DecoderBufferQueue queue;
queue.Push(CreateBuffer(0));
queue.Push(CreateBuffer(4));
EXPECT_EQ(4, queue.Duration().InSeconds());
queue.Push(CreateBuffer(-1));
EXPECT_EQ(4, queue.Duration().InSeconds());
queue.Push(CreateBuffer(6));
EXPECT_EQ(6, queue.Duration().InSeconds());
queue.Pop();
EXPECT_EQ(2, queue.Duration().InSeconds());
queue.Pop();
EXPECT_EQ(0, queue.Duration().InSeconds());
queue.Pop();
EXPECT_EQ(0, queue.Duration().InSeconds());
queue.Pop();
EXPECT_EQ(0, queue.Duration().InSeconds());
}
TEST(DecoderBufferQueueTest, DataSize) {
DecoderBufferQueue queue;
EXPECT_EQ(queue.data_size(), 0u);
queue.Push(CreateBuffer(0, 1200u));
EXPECT_EQ(queue.data_size(), 1200u);
queue.Push(CreateBuffer(1, 1000u));
EXPECT_EQ(queue.data_size(), 2200u);
queue.Pop();
EXPECT_EQ(queue.data_size(), 1000u);
queue.Push(CreateBuffer(2, 999u));
queue.Push(CreateBuffer(3, 999u));
EXPECT_EQ(queue.data_size(), 2998u);
queue.Clear();
EXPECT_EQ(queue.data_size(), 0u);
queue.Push(CreateBuffer(4, 1400u));
EXPECT_EQ(queue.data_size(), 1400u);
}
} // namespace media
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