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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/files/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;
}
base::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, TimeBaseConversions) {
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, VerifyFormatSizes) {
for (AVSampleFormat format = AV_SAMPLE_FMT_NONE;
format < AV_SAMPLE_FMT_NB;
format = static_cast<AVSampleFormat>(format + 1)) {
SampleFormat sample_format = AVSampleFormatToSampleFormat(format);
if (sample_format == kUnknownSampleFormat) {
// This format not supported, so skip it.
continue;
}
// Have FFMpeg compute the size of a buffer of 1 channel / 1 frame
// with 1 byte alignment to make sure the sizes match.
int single_buffer_size = av_samples_get_buffer_size(NULL, 1, 1, format, 1);
int bytes_per_channel = SampleFormatToBytesPerChannel(sample_format);
EXPECT_EQ(bytes_per_channel, single_buffer_size);
}
}
} // namespace media
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