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// Copyright (c) 2011 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 "base/file_path.h"
#include "base/logging.h"
#include "base/path_service.h"
#include "media/base/media.h"
#include "media/ffmpeg/ffmpeg_common.h"
#include "testing/gtest/include/gtest/gtest.h"
using base::TimeDelta;
namespace media {
static AVIndexEntry kIndexEntries[] = {
// pos, timestamp, flags, size, min_distance
{ 0, 0, AVINDEX_KEYFRAME, 0, 0 },
{ 2000, 1000, AVINDEX_KEYFRAME, 0, 0 },
{ 3000, 2000, 0, 0, 0 },
{ 5000, 3000, AVINDEX_KEYFRAME, 0, 0 },
{ 6000, 4000, 0, 0, 0 },
{ 8000, 5000, AVINDEX_KEYFRAME, 0, 0 },
{ 9000, 6000, AVINDEX_KEYFRAME, 0, 0 },
{ 11500, 7000, AVINDEX_KEYFRAME, 0, 0 },
};
static const AVRational kTimeBase = { 1, 1000 };
class FFmpegCommonTest : public testing::Test {
public:
FFmpegCommonTest();
virtual ~FFmpegCommonTest();
protected:
AVStream stream_;
DISALLOW_COPY_AND_ASSIGN(FFmpegCommonTest);
};
static bool InitFFmpeg() {
static bool initialized = false;
if (initialized) {
return true;
}
FilePath path;
PathService::Get(base::DIR_MODULE, &path);
return media::InitializeMediaLibrary(path);
}
FFmpegCommonTest::FFmpegCommonTest() {
CHECK(InitFFmpeg());
stream_.time_base = kTimeBase;
stream_.index_entries = kIndexEntries;
stream_.index_entries_allocated_size = sizeof(kIndexEntries);
stream_.nb_index_entries = arraysize(kIndexEntries);
}
FFmpegCommonTest::~FFmpegCommonTest() {}
TEST_F(FFmpegCommonTest, TestTimeBaseConversions) {
int64 test_data[][5] = {
{1, 2, 1, 500000, 1 },
{1, 3, 1, 333333, 1 },
{1, 3, 2, 666667, 2 },
};
for (size_t i = 0; i < arraysize(test_data); ++i) {
SCOPED_TRACE(i);
AVRational time_base;
time_base.num = static_cast<int>(test_data[i][0]);
time_base.den = static_cast<int>(test_data[i][1]);
TimeDelta time_delta = ConvertFromTimeBase(time_base, test_data[i][2]);
EXPECT_EQ(time_delta.InMicroseconds(), test_data[i][3]);
EXPECT_EQ(ConvertToTimeBase(time_base, time_delta), test_data[i][4]);
}
}
TEST_F(FFmpegCommonTest, GetSeekTimeAfterSuccess) {
int64 test_data[][2] = {
{5000, 5000}, // Timestamp is a keyframe seek point.
{2400, 3000}, // Timestamp is just before a keyframe seek point.
{2000, 3000}, // Timestamp is a non-keyframe entry.
{1800, 3000}, // Timestamp is just before a non-keyframe entry.
};
for (size_t i = 0; i < arraysize(test_data); ++i) {
SCOPED_TRACE(i);
TimeDelta seek_point;
TimeDelta timestamp = TimeDelta::FromMilliseconds(test_data[i][0]);
ASSERT_TRUE(GetSeekTimeAfter(&stream_, timestamp, &seek_point));
EXPECT_EQ(seek_point.InMilliseconds(), test_data[i][1]);
}
}
TEST_F(FFmpegCommonTest, GetSeekTimeAfterFailures) {
TimeDelta seek_point;
// Timestamp after last index entry.
ASSERT_FALSE(GetSeekTimeAfter(&stream_, TimeDelta::FromSeconds(8),
&seek_point));
AVStream stream;
memcpy(&stream, &stream_, sizeof(stream));
stream.index_entries = NULL;
// Stream w/o index data.
ASSERT_FALSE(GetSeekTimeAfter(&stream, TimeDelta::FromSeconds(1),
&seek_point));
}
TEST_F(FFmpegCommonTest, GetStreamByteCountOverRangeSuccess) {
int64 test_data[][5] = {
{ 0, 1000, 2000, 0, 1000}, // Bytes between two adjacent keyframe
// entries.
{1000, 2000, 3000, 1000, 3000}, // Bytes between two keyframe entries with a
// non-keyframe entry between them.
{5500, 5600, 1000, 5000, 6000}, // Bytes for a range that starts and ends
// between two index entries.
{4500, 7000, 6500, 3000, 7000}, // Bytes for a range that ends on the last
// seek point.
};
for (size_t i = 0; i < arraysize(test_data); ++i) {
SCOPED_TRACE(i);
TimeDelta start_time = TimeDelta::FromMilliseconds(test_data[i][0]);
TimeDelta end_time = TimeDelta::FromMilliseconds(test_data[i][1]);
int64 bytes;
TimeDelta range_start;
TimeDelta range_end;
ASSERT_TRUE(GetStreamByteCountOverRange(&stream_, start_time, end_time,
&bytes, &range_start, &range_end));
EXPECT_EQ(bytes, test_data[i][2]);
EXPECT_EQ(range_start.InMilliseconds(), test_data[i][3]);
EXPECT_EQ(range_end.InMilliseconds(), test_data[i][4]);
}
}
TEST_F(FFmpegCommonTest, GetStreamByteCountOverRangeFailures) {
int64 test_data[][2] = {
{7000, 7600}, // Test a range that starts at the last seek point.
{7500, 7600}, // Test a range after the last seek point
};
int64 bytes;
TimeDelta range_start;
TimeDelta range_end;
for (size_t i = 0; i < arraysize(test_data); ++i) {
SCOPED_TRACE(i);
TimeDelta start_time = TimeDelta::FromMilliseconds(test_data[i][0]);
TimeDelta end_time = TimeDelta::FromMilliseconds(test_data[i][1]);
EXPECT_FALSE(GetStreamByteCountOverRange(&stream_, start_time, end_time,
&bytes, &range_start, &range_end));
}
AVStream stream;
memcpy(&stream, &stream_, sizeof(stream));
stream.index_entries = NULL;
// Stream w/o index data.
ASSERT_FALSE(GetStreamByteCountOverRange(&stream,
TimeDelta::FromSeconds(1),
TimeDelta::FromSeconds(2),
&bytes, &range_start, &range_end));
}
} // namespace media
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