2014-02-14 23:21:05 +00:00
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// Copyright 2014 Google Inc. All rights reserved.
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//
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file or at
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// https://developers.google.com/open-source/licenses/bsd
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2013-10-08 17:37:58 +00:00
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#include "media/mp4/composition_offset_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 CompositionOffset kCompositionOffsets[] =
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{{10, 8}, {9, 5}, {25, 7}, {48, 63}, {8, 2}};
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class CompositionOffsetIteratorTest : public testing::Test {
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public:
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CompositionOffsetIteratorTest() {
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// Build composition offset table from kCompositionOffsets.
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uint32 composition_offset = 0;
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uint32 length = sizeof(kCompositionOffsets) / sizeof(CompositionOffset);
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for (uint32 i = 0; i < length; ++i) {
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for (uint32 j = 0; j < kCompositionOffsets[i].sample_count; ++j) {
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composition_offset_table_.push_back(
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kCompositionOffsets[i].sample_offset);
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}
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}
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composition_time_to_sample_.composition_offset.assign(
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kCompositionOffsets, kCompositionOffsets + length);
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composition_offset_iterator_.reset(
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new CompositionOffsetIterator(composition_time_to_sample_));
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}
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protected:
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std::vector<uint32> composition_offset_table_;
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CompositionTimeToSample composition_time_to_sample_;
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scoped_ptr<CompositionOffsetIterator> composition_offset_iterator_;
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private:
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DISALLOW_COPY_AND_ASSIGN(CompositionOffsetIteratorTest);
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};
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TEST_F(CompositionOffsetIteratorTest, EmptyCompositionTime) {
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CompositionTimeToSample composition_time_to_sample;
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CompositionOffsetIterator iterator(composition_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(CompositionOffsetIteratorTest, NumSamples) {
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ASSERT_EQ(composition_offset_table_.size(),
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composition_offset_iterator_->NumSamples());
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}
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TEST_F(CompositionOffsetIteratorTest, AdvanceSample) {
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ASSERT_EQ(composition_offset_table_[0],
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composition_offset_iterator_->sample_offset());
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for (uint32 sample = 1; sample < composition_offset_table_.size(); ++sample) {
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ASSERT_TRUE(composition_offset_iterator_->AdvanceSample());
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ASSERT_EQ(composition_offset_table_[sample],
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composition_offset_iterator_->sample_offset());
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ASSERT_TRUE(composition_offset_iterator_->IsValid());
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}
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ASSERT_FALSE(composition_offset_iterator_->AdvanceSample());
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ASSERT_FALSE(composition_offset_iterator_->IsValid());
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}
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TEST_F(CompositionOffsetIteratorTest, SampleOffset) {
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for (uint32 sample = 0; sample < composition_offset_table_.size(); ++sample) {
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ASSERT_EQ(composition_offset_table_[sample],
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composition_offset_iterator_->SampleOffset(sample+1));
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}
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}
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} // namespace mp4
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} // namespace media
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