79 lines
2.6 KiB
C++
79 lines
2.6 KiB
C++
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// Copyright (c) 2013 Google Inc. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "media/mp4/decoding_time_iterator.h"
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#include "base/memory/scoped_ptr.h"
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#include "testing/gtest/include/gtest/gtest.h"
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namespace media {
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namespace mp4 {
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const DecodingTime kDecodingTimes[] =
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{{10, 8}, {9, 5}, {25, 7}, {48, 63}, {8, 2}};
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class DecodingTimeIteratorTest : public testing::Test {
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public:
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DecodingTimeIteratorTest() {
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// Build decoding time table from kDecodingTimes.
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uint32 decoding_time = 0;
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uint32 length = sizeof(kDecodingTimes) / sizeof(DecodingTime);
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for (uint32 i = 0; i < length; ++i) {
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for (uint32 j = 0; j < kDecodingTimes[i].sample_count; ++j) {
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decoding_time += kDecodingTimes[i].sample_delta;
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decoding_time_table_.push_back(decoding_time);
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}
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}
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decoding_time_to_sample_.decoding_time.assign(kDecodingTimes,
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kDecodingTimes + length);
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decoding_time_iterator_.reset(
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new DecodingTimeIterator(decoding_time_to_sample_));
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}
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protected:
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std::vector<uint32> decoding_time_table_;
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DecodingTimeToSample decoding_time_to_sample_;
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scoped_ptr<DecodingTimeIterator> decoding_time_iterator_;
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private:
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DISALLOW_COPY_AND_ASSIGN(DecodingTimeIteratorTest);
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};
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TEST_F(DecodingTimeIteratorTest, EmptyDecodingTime) {
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DecodingTimeToSample decoding_time_to_sample;
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DecodingTimeIterator iterator(decoding_time_to_sample);
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EXPECT_FALSE(iterator.IsValid());
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EXPECT_EQ(0, iterator.NumSamples());
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}
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TEST_F(DecodingTimeIteratorTest, NumSamples) {
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ASSERT_EQ(decoding_time_table_.size(), decoding_time_iterator_->NumSamples());
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}
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TEST_F(DecodingTimeIteratorTest, AdvanceSample) {
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ASSERT_EQ(decoding_time_table_[0], decoding_time_iterator_->sample_delta());
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for (uint32 sample = 1; sample < decoding_time_table_.size(); ++sample) {
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ASSERT_TRUE(decoding_time_iterator_->AdvanceSample());
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ASSERT_EQ(decoding_time_table_[sample] - decoding_time_table_[sample - 1],
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decoding_time_iterator_->sample_delta());
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ASSERT_TRUE(decoding_time_iterator_->IsValid());
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}
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ASSERT_FALSE(decoding_time_iterator_->AdvanceSample());
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ASSERT_FALSE(decoding_time_iterator_->IsValid());
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}
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TEST_F(DecodingTimeIteratorTest, Duration) {
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for (uint32 i = 0; i < decoding_time_table_.size(); ++i) {
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for (uint32 j = i; j < decoding_time_table_.size(); ++j) {
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ASSERT_EQ(
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decoding_time_table_[j] - (i == 0 ? 0 : decoding_time_table_[i - 1]),
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decoding_time_iterator_->Duration(i + 1, j + 1));
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}
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}
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}
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} // namespace mp4
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} // namespace media
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