srs/trunk/src/utest/srs_utest_kernel.cpp

/*
The MIT License (MIT)

Copyright (c) 2013-2019 Winlin

Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <srs_utest_kernel.hpp>

using namespace std;

#include <srs_kernel_error.hpp>
#include <srs_kernel_codec.hpp>
#include <srs_kernel_flv.hpp>
#include <srs_kernel_utility.hpp>
#include <srs_protocol_utility.hpp>
#include <srs_kernel_buffer.hpp>
#include <srs_kernel_aac.hpp>
#include <srs_kernel_balance.hpp>
#include <srs_kernel_file.hpp>
#include <srs_kernel_log.hpp>
#include <srs_kernel_mp3.hpp>
#include <srs_kernel_ts.hpp>
#include <srs_kernel_mp4.hpp>

#define MAX_MOCK_DATA_SIZE 1024 * 1024

MockSrsFileWriter::MockSrsFileWriter()
{
    size = MAX_MOCK_DATA_SIZE;
    data = new char[size];
    offset = 0;
    err = srs_success;
    error_offset = 0;
}

MockSrsFileWriter::~MockSrsFileWriter()
{
    srs_freep(err);
    srs_freep(data);
}

srs_error_t MockSrsFileWriter::open(string /*file*/)
{
    offset = 0;
    
    if (err != srs_success) {
        return srs_error_copy(err);
    }
    
    return srs_success;
}

void MockSrsFileWriter::close()
{
    offset = 0;
}

bool MockSrsFileWriter::is_open()
{
    return offset >= 0;
}

void MockSrsFileWriter::seek2(int64_t offset)
{
    this->offset = offset;
}

int64_t MockSrsFileWriter::tellg()
{
    return offset;
}

srs_error_t MockSrsFileWriter::write(void* buf, size_t count, ssize_t* pnwrite)
{
    if (err != srs_success) {
        return srs_error_copy(err);
    }
    
    int nwriten = srs_min(MAX_MOCK_DATA_SIZE - offset, (int)count);
    
    memcpy(data + offset, buf, nwriten);

    if (pnwrite) {
        *pnwrite = nwriten;
    }
    
    offset += nwriten;
    size = srs_max(size, offset);
    
    if (error_offset > 0 && offset >= error_offset) {
        return srs_error_new(-1, "exceed offset");
    }
    
    return srs_success;
}

srs_error_t MockSrsFileWriter::lseek(off_t _offset, int whence, off_t* seeked)
{
    if (whence == SEEK_SET) {
        offset = (int)_offset;
    }
    if (whence == SEEK_CUR) {
        offset += (int)_offset;
    }
    if (whence == SEEK_END) {
        offset = (int)(size + _offset);
    }
    
    if (seeked) {
        *seeked = (off_t)offset;
    }
    
    return srs_success;
}

void MockSrsFileWriter::mock_reset_offset()
{
    offset = 0;
}

MockSrsFileReader::MockSrsFileReader()
{
    data = new char[MAX_MOCK_DATA_SIZE];
    size = 0;
    offset = 0;
}

MockSrsFileReader::MockSrsFileReader(const char* src, int nb_src)
{
    data = new char[nb_src];
    memcpy(data, src, nb_src);
    
    size = nb_src;
    offset = 0;
}

MockSrsFileReader::~MockSrsFileReader()
{
    srs_freep(data);
}

srs_error_t MockSrsFileReader::open(string /*file*/)
{
    offset = 0;
    
    return srs_success;
}

void MockSrsFileReader::close()
{
    offset = 0;
}

bool MockSrsFileReader::is_open()
{
    return offset >= 0;
}

int64_t MockSrsFileReader::tellg()
{
    return offset;
}

void MockSrsFileReader::skip(int64_t _size)
{
    offset += _size;
}

int64_t MockSrsFileReader::seek2(int64_t _offset)
{
    offset = (int)_offset;
    return offset;
}

int64_t MockSrsFileReader::filesize()
{
    return size;
}

srs_error_t MockSrsFileReader::read(void* buf, size_t count, ssize_t* pnread)
{
    int s = srs_min(size - offset, (int)count);
    
    if (s <= 0) {
        return srs_error_new(ERROR_SYSTEM_FILE_EOF, "EOF left=%d", s);
    }
    
    memcpy(buf, data + offset, s);
    offset += s;

    if (pnread) {
        *pnread = s;
    }
    
    return srs_success;
}

srs_error_t MockSrsFileReader::lseek(off_t _offset, int whence, off_t* seeked)
{
    if (whence == SEEK_SET) {
        offset = (int)_offset;
    }
    if (whence == SEEK_CUR) {
        offset += (int)_offset;
    }
    if (whence == SEEK_END) {
        offset = (int)(size + _offset);
    }
    
    if (seeked) {
        *seeked = (off_t)offset;
    }
    
    return srs_success;
}

void MockSrsFileReader::mock_append_data(const char* _data, int _size)
{
    int s = srs_min(MAX_MOCK_DATA_SIZE - offset, _size);
    memcpy(data + offset, _data, s);
    size += s;
    offset += s;
}

void MockSrsFileReader::mock_reset_offset()
{
    offset = 0;
}

MockBufferReader::MockBufferReader(const char* data)
{
    str = data;
}

MockBufferReader::~MockBufferReader()
{
}

srs_error_t MockBufferReader::read(void* buf, size_t size, ssize_t* nread)
{
    int len = srs_min(str.length(), size);

    memcpy(buf, str.data(), len);
    
    if (nread) {
        *nread = len;
    }

    return srs_success;
}

MockSrsCodec::MockSrsCodec()
{
}

MockSrsCodec::~MockSrsCodec()
{
}

int MockSrsCodec::nb_bytes()
{
    return 0;
}

srs_error_t MockSrsCodec::encode(SrsBuffer* /*buf*/)
{
    return srs_success;
}

srs_error_t MockSrsCodec::decode(SrsBuffer* /*buf*/)
{
    return srs_success;
}

MockTsHandler::MockTsHandler()
{
    msg = NULL;
}

MockTsHandler::~MockTsHandler()
{
    srs_freep(msg);
}

srs_error_t MockTsHandler::on_ts_message(SrsTsMessage* m)
{
    srs_freep(msg);
    msg = m->detach();
    
    return srs_success;
}

VOID TEST(KernelBufferTest, DefaultObject)
{
    SrsSimpleStream b;
    
    EXPECT_EQ(0, b.length());
    EXPECT_EQ(NULL, b.bytes());
}

VOID TEST(KernelBufferTest, AppendBytes)
{
    SrsSimpleStream b;
    
    char winlin[] = "winlin";
    b.append(winlin, strlen(winlin));
    EXPECT_EQ((int)strlen(winlin), b.length());
    ASSERT_TRUE(NULL != b.bytes());
    EXPECT_EQ('w', b.bytes()[0]);
    EXPECT_EQ('n', b.bytes()[5]);

    b.append(winlin, strlen(winlin));
    EXPECT_EQ(2 * (int)strlen(winlin), b.length());
    ASSERT_TRUE(NULL != b.bytes());
    EXPECT_EQ('w', b.bytes()[0]);
    EXPECT_EQ('n', b.bytes()[5]);
    EXPECT_EQ('w', b.bytes()[6]);
    EXPECT_EQ('n', b.bytes()[11]);
}

VOID TEST(KernelBufferTest, EraseBytes)
{
    SrsSimpleStream b;
    
    b.erase(0);
    b.erase(-1);
    EXPECT_EQ(0, b.length());
    
    char winlin[] = "winlin";
    b.append(winlin, strlen(winlin));
    b.erase(b.length());
    EXPECT_EQ(0, b.length());
    
    b.erase(0);
    b.erase(-1);
    EXPECT_EQ(0, b.length());
    
    b.append(winlin, strlen(winlin));
    b.erase(1);
    EXPECT_EQ(5, b.length());
    EXPECT_EQ('i', b.bytes()[0]);
    EXPECT_EQ('n', b.bytes()[4]);
    
    b.erase(2);
    EXPECT_EQ(3, b.length());
    EXPECT_EQ('l', b.bytes()[0]);
    EXPECT_EQ('n', b.bytes()[2]);
    
    b.erase(0);
    b.erase(-1);
    EXPECT_EQ(3, b.length());
    
    b.erase(3);
    EXPECT_EQ(0, b.length());
}

VOID TEST(KernelFastBufferTest, Grow)
{
    SrsFastStream b;
    MockBufferReader r("winlin");
    
    b.grow(&r, 1);
    EXPECT_EQ('w', b.read_1byte());

    b.grow(&r, 3);
    b.skip(1);
    EXPECT_EQ('n', b.read_1byte());
    
    b.grow(&r, 100);
    b.skip(99);
    EXPECT_EQ('w', b.read_1byte());
}

/**
* test the codec,
* whether H.264 keyframe
*/
VOID TEST(KernelCodecTest, IsKeyFrame)
{
    char data;
    
    data = 0x10;
    EXPECT_TRUE(SrsFlvVideo::keyframe(&data, 1));
    EXPECT_FALSE(SrsFlvVideo::keyframe(&data, 0));
    
    data = 0x20;
    EXPECT_FALSE(SrsFlvVideo::keyframe(&data, 1));
}

/**
* test the codec,
* check whether H.264 video
*/
VOID TEST(KernelCodecTest, IsH264)
{
    char data;
    
    EXPECT_FALSE(SrsFlvVideo::h264(&data, 0));
    
    data = 0x17;
    EXPECT_TRUE(SrsFlvVideo::h264(&data, 1));
    
    data = 0x07;
    EXPECT_TRUE(SrsFlvVideo::h264(&data, 1));
    
    data = 0x08;
    EXPECT_FALSE(SrsFlvVideo::h264(&data, 1));
}

/**
* test the codec,
* whether H.264 video sequence header
*/
VOID TEST(KernelCodecTest, IsSequenceHeader)
{
    int16_t data;
    char* pp = (char*)&data;
    
    EXPECT_FALSE(SrsFlvVideo::sh((char*)pp, 0));
    EXPECT_FALSE(SrsFlvVideo::sh((char*)pp, 1));
    
    pp[0] = 0x17;
    pp[1] = 0x00;
    EXPECT_TRUE(SrsFlvVideo::sh((char*)pp, 2));
    pp[0] = 0x18;
    EXPECT_FALSE(SrsFlvVideo::sh((char*)pp, 2));
    pp[0] = 0x27;
    EXPECT_FALSE(SrsFlvVideo::sh((char*)pp, 2));
    pp[0] = 0x17;
    pp[1] = 0x01;
    EXPECT_FALSE(SrsFlvVideo::sh((char*)pp, 2));
}

/**
* test the codec,
* check whether AAC codec
*/
VOID TEST(KernelCodecTest, IsAAC)
{
    char data;
    
    EXPECT_FALSE(SrsFlvAudio::aac(&data, 0));
    
    data = 0xa0;
    EXPECT_TRUE(SrsFlvAudio::aac(&data, 1));
    
    data = 0xa7;
    EXPECT_TRUE(SrsFlvAudio::aac(&data, 1));
    
    data = 0x00;
    EXPECT_FALSE(SrsFlvAudio::aac(&data, 1));
}

/**
* test the codec,
* AAC audio sequence header
*/
VOID TEST(KernelCodecTest, IsAudioSequenceHeader)
{
    int16_t data;
    char* pp = (char*)&data;
    
    EXPECT_FALSE(SrsFlvAudio::sh((char*)pp, 0));
    EXPECT_FALSE(SrsFlvAudio::sh((char*)pp, 1));
    
    pp[0] = 0xa0;
    pp[1] = 0x00;
    EXPECT_TRUE(SrsFlvAudio::sh((char*)pp, 2));
    pp[0] = 0x00;
    EXPECT_FALSE(SrsFlvVideo::sh((char*)pp, 2));
    pp[0] = 0xa0;
    pp[1] = 0x01;
    EXPECT_FALSE(SrsFlvVideo::sh((char*)pp, 2));
}

/**
* test the flv encoder,
* exception: file stream not open
*/
VOID TEST(KernelFlvTest, FlvEncoderStreamClosed)
{
    MockSrsFileWriter fs;
    SrsFlvTransmuxer enc;
    // The decoder never check the reader status.
    ASSERT_TRUE(ERROR_SUCCESS == enc.initialize(&fs));
}

/**
* test the flv encoder,
* write flv header
*/
VOID TEST(KernelFlvTest, FlvEncoderWriteHeader)
{
    MockSrsFileWriter fs;
    SrsFlvTransmuxer enc;
    ASSERT_TRUE(ERROR_SUCCESS == fs.open(""));
    ASSERT_TRUE(ERROR_SUCCESS == enc.initialize(&fs));
    
    // write header, 9bytes
    char flv_header[] = {
        'F', 'L', 'V', // Signatures "FLV"
        (char)0x01, // File version (for example, 0x01 for FLV version 1)
        (char)0x05, // 4, audio; 1, video; 5 audio+video.
        (char)0x00, (char)0x00, (char)0x00, (char)0x09 // DataOffset UI32 The length of this header in bytes
    };
    char pts[] = { (char)0x00, (char)0x00, (char)0x00, (char)0x00 };
    
    EXPECT_TRUE(ERROR_SUCCESS == enc.write_header());
    ASSERT_TRUE(9 + 4 == fs.offset);
    
    EXPECT_TRUE(srs_bytes_equals(flv_header, fs.data, 9));
    EXPECT_TRUE(srs_bytes_equals(pts, fs.data + 9, 4));

    // customer header
    flv_header[3] = 0xF0;
    flv_header[4] = 0xF1;
    flv_header[5] = 0x01;
    
    fs.mock_reset_offset();
    
    EXPECT_TRUE(ERROR_SUCCESS == enc.write_header(flv_header));
    ASSERT_TRUE(9 + 4 == fs.offset);
    
    EXPECT_TRUE(srs_bytes_equals(flv_header, fs.data, 9));
    EXPECT_TRUE(srs_bytes_equals(pts, fs.data + 9, 4));
}

/**
* test the flv encoder,
* write metadata tag
*/
VOID TEST(KernelFlvTest, FlvEncoderWriteMetadata)
{
    MockSrsFileWriter fs;
    EXPECT_TRUE(ERROR_SUCCESS == fs.open(""));
    SrsFlvTransmuxer enc;
    ASSERT_TRUE(ERROR_SUCCESS == enc.initialize(&fs));
    
    // 11 bytes tag header
    char tag_header[] = {
        (char)18, // TagType UB [5], 18 = script data
        (char)0x00, (char)0x00, (char)0x08, // DataSize UI24 Length of the message.
        (char)0x00, (char)0x00, (char)0x00, // Timestamp UI24 Time in milliseconds at which the data in this tag applies.
        (char)0x00, // TimestampExtended UI8
        (char)0x00, (char)0x00, (char)0x00, // StreamID UI24 Always 0.
    };
    char md[] = {
        (char)0x01, (char)0x02, (char)0x03, (char)0x04,
        (char)0x04, (char)0x03, (char)0x02, (char)0x01
    };
    char pts[] = { (char)0x00, (char)0x00, (char)0x00, (char)19 };
    
    ASSERT_TRUE(ERROR_SUCCESS == enc.write_metadata(18, md, 8));
    ASSERT_TRUE(11 + 8 + 4 == fs.offset);
    
    EXPECT_TRUE(srs_bytes_equals(tag_header, fs.data, 11));
    EXPECT_TRUE(srs_bytes_equals(md, fs.data + 11, 8));
    EXPECT_TRUE(true); // donot know why, if not add it, the print is disabled.
    EXPECT_TRUE(srs_bytes_equals(pts, fs.data + 19, 4));
}

/**
* test the flv encoder,
* write audio tag
*/
VOID TEST(KernelFlvTest, FlvEncoderWriteAudio)
{
    MockSrsFileWriter fs;
    SrsFlvTransmuxer enc;
    ASSERT_TRUE(ERROR_SUCCESS == fs.open(""));
    ASSERT_TRUE(ERROR_SUCCESS == enc.initialize(&fs));
    
    // 11bytes tag header
    char tag_header[] = {
        (char)8, // TagType UB [5], 8 = audio
        (char)0x00, (char)0x00, (char)0x08, // DataSize UI24 Length of the message.
        (char)0x00, (char)0x00, (char)0x30, // Timestamp UI24 Time in milliseconds at which the data in this tag applies.
        (char)0x00, // TimestampExtended UI8
        (char)0x00, (char)0x00, (char)0x00, // StreamID UI24 Always 0.
    };
    char audio[] = {
        (char)0x01, (char)0x02, (char)0x03, (char)0x04,
        (char)0x04, (char)0x03, (char)0x02, (char)0x01
    };
    char pts[] = { (char)0x00, (char)0x00, (char)0x00, (char)19 };
    
    ASSERT_TRUE(ERROR_SUCCESS == enc.write_audio(0x30, audio, 8));
    ASSERT_TRUE(11 + 8 + 4 == fs.offset);
    
    EXPECT_TRUE(srs_bytes_equals(tag_header, fs.data, 11));
    EXPECT_TRUE(srs_bytes_equals(audio, fs.data + 11, 8));
    EXPECT_TRUE(true); // donot know why, if not add it, the print is disabled.
    EXPECT_TRUE(srs_bytes_equals(pts, fs.data + 11 + 8, 4));
}

/**
* test the flv encoder,
* write video tag
*/
VOID TEST(KernelFlvTest, FlvEncoderWriteVideo)
{
    MockSrsFileWriter fs;
    SrsFlvTransmuxer enc;
    ASSERT_TRUE(ERROR_SUCCESS == fs.open(""));
    ASSERT_TRUE(ERROR_SUCCESS == enc.initialize(&fs));
    
    // 11bytes tag header
    char tag_header[] = {
        (char)9, // TagType UB [5], 9 = video
        (char)0x00, (char)0x00, (char)0x08, // DataSize UI24 Length of the message.
        (char)0x00, (char)0x00, (char)0x30, // Timestamp UI24 Time in milliseconds at which the data in this tag applies.
        (char)0x00, // TimestampExtended UI8
        (char)0x00, (char)0x00, (char)0x00, // StreamID UI24 Always 0.
    };
    char video[] = {
        (char)0x01, (char)0x02, (char)0x03, (char)0x04,
        (char)0x04, (char)0x03, (char)0x02, (char)0x01
    };
    char pts[] = { (char)0x00, (char)0x00, (char)0x00, (char)19 };
    
    ASSERT_TRUE(ERROR_SUCCESS == enc.write_video(0x30, video, 8));
    ASSERT_TRUE(11 + 8 + 4 == fs.offset);
    
    EXPECT_TRUE(srs_bytes_equals(tag_header, fs.data, 11));
    EXPECT_TRUE(srs_bytes_equals(video, fs.data + 11, 8));
    EXPECT_TRUE(true); // donot know why, if not add it, the print is disabled.
    EXPECT_TRUE(srs_bytes_equals(pts, fs.data + 11 + 8, 4));
}

/**
* test the flv encoder,
* calc the tag size.
*/
VOID TEST(KernelFlvTest, FlvEncoderSizeTag)
{
    EXPECT_EQ(11+4+10, SrsFlvTransmuxer::size_tag(10));
    EXPECT_EQ(11+4+0, SrsFlvTransmuxer::size_tag(0));
}

/**
* test the flv decoder,
* exception: file stream not open.
*/
VOID TEST(KernelFlvTest, FlvDecoderStreamClosed)
{
    MockSrsFileReader fs;
    SrsFlvDecoder dec;
    // The decoder never check the reader status.
    ASSERT_TRUE(ERROR_SUCCESS == dec.initialize(&fs));
}

/**
* test the flv decoder,
* decode flv header
*/
VOID TEST(KernelFlvTest, FlvDecoderHeader)
{
    MockSrsFileReader fs;
    SrsFlvDecoder dec;
    ASSERT_TRUE(ERROR_SUCCESS == fs.open(""));
    ASSERT_TRUE(ERROR_SUCCESS == dec.initialize(&fs));
    
    // 9bytes
    char flv_header[] = {
        'F', 'L', 'V', // Signatures "FLV"
        (char)0x01, // File version (for example, 0x01 for FLV version 1)
        (char)0x00, // 4, audio; 1, video; 5 audio+video.
        (char)0x00, (char)0x00, (char)0x00, (char)0x09 // DataOffset UI32 The length of this header in bytes
    };
    char pts[] = { (char)0x00, (char)0x00, (char)0x00, (char)0x00 };
    fs.mock_append_data(flv_header, 9);
    fs.mock_append_data(pts, 4);
    
    char data[1024];
    fs.mock_reset_offset();
    
    EXPECT_TRUE(ERROR_SUCCESS == dec.read_header(data));
    EXPECT_TRUE(srs_bytes_equals(flv_header, data, 9));
    
    EXPECT_TRUE(ERROR_SUCCESS == dec.read_previous_tag_size(data));
    EXPECT_TRUE(srs_bytes_equals(pts, data, 4));
}

/**
* test the flv decoder,
* decode metadata tag
*/
VOID TEST(KernelFlvTest, FlvDecoderMetadata)
{
    MockSrsFileReader fs;
    SrsFlvDecoder dec;
    ASSERT_TRUE(ERROR_SUCCESS == fs.open(""));
    ASSERT_TRUE(ERROR_SUCCESS == dec.initialize(&fs));
    
    // 11 bytes tag header
    char tag_header[] = {
        (char)18, // TagType UB [5], 18 = script data
        (char)0x00, (char)0x00, (char)0x08, // DataSize UI24 Length of the message.
        (char)0x00, (char)0x00, (char)0x00, // Timestamp UI24 Time in milliseconds at which the data in this tag applies.
        (char)0x00, // TimestampExtended UI8
        (char)0x00, (char)0x00, (char)0x00, // StreamID UI24 Always 0.
    };
    char md[] = {
        (char)0x01, (char)0x02, (char)0x03, (char)0x04,
        (char)0x04, (char)0x03, (char)0x02, (char)0x01
    };
    char pts[] = { (char)0x00, (char)0x00, (char)0x00, (char)19 };
    fs.mock_append_data(tag_header, 11);
    fs.mock_append_data(md, 8);
    fs.mock_append_data(pts, 4);
    
    char type = 0;
    int32_t size = 0;
    uint32_t time = 0;
    char data[1024];
    fs.mock_reset_offset();
    
    EXPECT_TRUE(ERROR_SUCCESS == dec.read_tag_header(&type, &size, &time));
    EXPECT_TRUE(18 == type);
    EXPECT_TRUE(8 == size);
    EXPECT_TRUE(0 == time);
    
    EXPECT_TRUE(ERROR_SUCCESS == dec.read_tag_data(data, size));
    EXPECT_TRUE(srs_bytes_equals(md, data, 8));
    
    EXPECT_TRUE(ERROR_SUCCESS == dec.read_previous_tag_size(data));
    EXPECT_TRUE(srs_bytes_equals(pts, data, 4));
}

/**
* test the flv decoder,
* decode audio tag
*/
VOID TEST(KernelFlvTest, FlvDecoderAudio)
{
    MockSrsFileReader fs;
    SrsFlvDecoder dec;
    ASSERT_TRUE(ERROR_SUCCESS == fs.open(""));
    ASSERT_TRUE(ERROR_SUCCESS == dec.initialize(&fs));
    
    // 11bytes tag header
    char tag_header[] = {
        (char)8, // TagType UB [5], 8 = audio
        (char)0x00, (char)0x00, (char)0x08, // DataSize UI24 Length of the message.
        (char)0x00, (char)0x00, (char)0x30, // Timestamp UI24 Time in milliseconds at which the data in this tag applies.
        (char)0x00, // TimestampExtended UI8
        (char)0x00, (char)0x00, (char)0x00, // StreamID UI24 Always 0.
    };
    char audio[] = {
        (char)0x01, (char)0x02, (char)0x03, (char)0x04,
        (char)0x04, (char)0x03, (char)0x02, (char)0x01
    };
    char pts[] = { (char)0x00, (char)0x00, (char)0x00, (char)19 };
    fs.mock_append_data(tag_header, 11);
    fs.mock_append_data(audio, 8);
    fs.mock_append_data(pts, 4);
    
    char type = 0;
    int32_t size = 0;
    uint32_t time = 0;
    char data[1024];
    fs.mock_reset_offset();
    
    EXPECT_TRUE(ERROR_SUCCESS == dec.read_tag_header(&type, &size, &time));
    EXPECT_TRUE(8 == type);
    EXPECT_TRUE(8 == size);
    EXPECT_TRUE(0x30 == time);
    
    EXPECT_TRUE(ERROR_SUCCESS == dec.read_tag_data(data, size));
    EXPECT_TRUE(srs_bytes_equals(audio, data, 8));
    
    EXPECT_TRUE(ERROR_SUCCESS == dec.read_previous_tag_size(data));
    EXPECT_TRUE(srs_bytes_equals(pts, data, 4));
}

/**
* test the flv decoder,
* decode video tag
*/
VOID TEST(KernelFlvTest, FlvDecoderVideo)
{
    MockSrsFileReader fs;
    SrsFlvDecoder dec;
    ASSERT_TRUE(ERROR_SUCCESS == fs.open(""));
    ASSERT_TRUE(ERROR_SUCCESS == dec.initialize(&fs));
    
    // 11bytes tag header
    char tag_header[] = {
        (char)9, // TagType UB [5], 9 = video
        (char)0x00, (char)0x00, (char)0x08, // DataSize UI24 Length of the message.
        (char)0x00, (char)0x00, (char)0x30, // Timestamp UI24 Time in milliseconds at which the data in this tag applies.
        (char)0x00, // TimestampExtended UI8
        (char)0x00, (char)0x00, (char)0x00, // StreamID UI24 Always 0.
    };
    char video[] = {
        (char)0x01, (char)0x02, (char)0x03, (char)0x04,
        (char)0x04, (char)0x03, (char)0x02, (char)0x01
    };
    char pts[] = { (char)0x00, (char)0x00, (char)0x00, (char)19 };
    fs.mock_append_data(tag_header, 11);
    fs.mock_append_data(video, 8);
    fs.mock_append_data(pts, 4);
    
    char type = 0;
    int32_t size = 0;
    uint32_t time = 0;
    char data[1024];
    fs.mock_reset_offset();
    
    EXPECT_TRUE(ERROR_SUCCESS == dec.read_tag_header(&type, &size, &time));
    EXPECT_TRUE(9 == type);
    EXPECT_TRUE(8 == size);
    EXPECT_TRUE(0x30 == time);
    
    EXPECT_TRUE(ERROR_SUCCESS == dec.read_tag_data(data, size));
    EXPECT_TRUE(srs_bytes_equals(video, data, 8));
    
    EXPECT_TRUE(ERROR_SUCCESS == dec.read_previous_tag_size(data));
    EXPECT_TRUE(srs_bytes_equals(pts, data, 4));
}

/**
* test the flv vod stream decoder,
* exception: file stream not open.
*/
VOID TEST(KernelFlvTest, FlvVSDecoderStreamClosed)
{
    MockSrsFileReader fs;
    SrsFlvVodStreamDecoder dec;
    ASSERT_TRUE(srs_success == dec.initialize(&fs));
}

/**
* test the flv vod stream decoder,
* decode the flv header
*/
VOID TEST(KernelFlvTest, FlvVSDecoderHeader)
{
    MockSrsFileReader fs;
    SrsFlvVodStreamDecoder dec;
    
    ASSERT_TRUE(ERROR_SUCCESS == fs.open(""));
    ASSERT_TRUE(ERROR_SUCCESS == dec.initialize(&fs));
    
    // 9bytes
    char flv_header[] = {
        'F', 'L', 'V', // Signatures "FLV"
        (char)0x01, // File version (for example, 0x01 for FLV version 1)
        (char)0x00, // 4, audio; 1, video; 5 audio+video.
        (char)0x00, (char)0x00, (char)0x00, (char)0x09 // DataOffset UI32 The length of this header in bytes
    };
    char pts[] = { (char)0x00, (char)0x00, (char)0x00, (char)0x00 };
    fs.mock_append_data(flv_header, 9);
    fs.mock_append_data(pts, 4);
    
    char data[1024];
    fs.mock_reset_offset();
    
    EXPECT_TRUE(ERROR_SUCCESS == dec.read_header_ext(data));
    EXPECT_TRUE(srs_bytes_equals(flv_header, data, 9));
}

/**
* test the flv vod stream decoder,
* get the start offset and size of sequence header
* mock data: metadata-audio-video
*/
VOID TEST(KernelFlvTest, FlvVSDecoderSequenceHeader)
{
    MockSrsFileReader fs;
    SrsFlvVodStreamDecoder dec;
    ASSERT_TRUE(ERROR_SUCCESS == fs.open(""));
    ASSERT_TRUE(ERROR_SUCCESS == dec.initialize(&fs));
    
    // push metadata tag
    if (true) {
        // 11 bytes tag header
        char tag_header[] = {
            (char)18, // TagType UB [5], 18 = script data
            (char)0x00, (char)0x00, (char)0x08, // DataSize UI24 Length of the message.
            (char)0x00, (char)0x00, (char)0x00, // Timestamp UI24 Time in milliseconds at which the data in this tag applies.
            (char)0x00, // TimestampExtended UI8
            (char)0x00, (char)0x00, (char)0x00, // StreamID UI24 Always 0.
        };
        char md[] = {
            (char)0x01, (char)0x02, (char)0x03, (char)0x04,
            (char)0x04, (char)0x03, (char)0x02, (char)0x01
        };
        char pts[] = { (char)0x00, (char)0x00, (char)0x00, (char)19 };
        fs.mock_append_data(tag_header, 11);
        fs.mock_append_data(md, 8);
        fs.mock_append_data(pts, 4);
    }
    // push audio tag
    if (true) {
        // 11bytes tag header
        char tag_header[] = {
            (char)8, // TagType UB [5], 8 = audio
            (char)0x00, (char)0x00, (char)0x08, // DataSize UI24 Length of the message.
            (char)0x00, (char)0x00, (char)0x30, // Timestamp UI24 Time in milliseconds at which the data in this tag applies.
            (char)0x00, // TimestampExtended UI8
            (char)0x00, (char)0x00, (char)0x00, // StreamID UI24 Always 0.
        };
        char audio[] = {
            (char)0x01, (char)0x02, (char)0x03, (char)0x04,
            (char)0x04, (char)0x03, (char)0x02, (char)0x01
        };
        char pts[] = { (char)0x00, (char)0x00, (char)0x00, (char)19 };
        fs.mock_append_data(tag_header, 11);
        fs.mock_append_data(audio, 8);
        fs.mock_append_data(pts, 4);
    }
    // push video tag
    if (true) {
        // 11bytes tag header
        char tag_header[] = {
            (char)9, // TagType UB [5], 9 = video
            (char)0x00, (char)0x00, (char)0x08, // DataSize UI24 Length of the message.
            (char)0x00, (char)0x00, (char)0x30, // Timestamp UI24 Time in milliseconds at which the data in this tag applies.
            (char)0x00, // TimestampExtended UI8
            (char)0x00, (char)0x00, (char)0x00, // StreamID UI24 Always 0.
        };
        char video[] = {
            (char)0x01, (char)0x02, (char)0x03, (char)0x04,
            (char)0x04, (char)0x03, (char)0x02, (char)0x01
        };
        char pts[] = { (char)0x00, (char)0x00, (char)0x00, (char)19 };
        fs.mock_append_data(tag_header, 11);
        fs.mock_append_data(video, 8);
        fs.mock_append_data(pts, 4);
    }
    
    fs.mock_reset_offset();
    
    int64_t start = 0;
    int size = 0;
    EXPECT_TRUE(ERROR_SUCCESS == dec.read_sequence_header_summary(&start, &size));
    EXPECT_EQ(23, (int)start);
    EXPECT_EQ(46, size);
}

/**
* test the flv vod stream decoder,
* get the start offset and size of sequence header
* mock data: metadata-video-audio
*/
VOID TEST(KernelFlvTest, FlvVSDecoderSequenceHeader2)
{
    MockSrsFileReader fs;
    SrsFlvVodStreamDecoder dec;
    ASSERT_TRUE(ERROR_SUCCESS == fs.open(""));
    ASSERT_TRUE(ERROR_SUCCESS == dec.initialize(&fs));
    
    // push metadata tag
    if (true) {
        // 11 bytes tag header
        char tag_header[] = {
            (char)18, // TagType UB [5], 18 = script data
            (char)0x00, (char)0x00, (char)0x08, // DataSize UI24 Length of the message.
            (char)0x00, (char)0x00, (char)0x00, // Timestamp UI24 Time in milliseconds at which the data in this tag applies.
            (char)0x00, // TimestampExtended UI8
            (char)0x00, (char)0x00, (char)0x00, // StreamID UI24 Always 0.
        };
        char md[] = {
            (char)0x01, (char)0x02, (char)0x03, (char)0x04,
            (char)0x04, (char)0x03, (char)0x02, (char)0x01
        };
        char pts[] = { (char)0x00, (char)0x00, (char)0x00, (char)19 };
        fs.mock_append_data(tag_header, 11);
        fs.mock_append_data(md, 8);
        fs.mock_append_data(pts, 4);
    }
    // push video tag
    if (true) {
        // 11bytes tag header
        char tag_header[] = {
            (char)9, // TagType UB [5], 9 = video
            (char)0x00, (char)0x00, (char)0x08, // DataSize UI24 Length of the message.
            (char)0x00, (char)0x00, (char)0x30, // Timestamp UI24 Time in milliseconds at which the data in this tag applies.
            (char)0x00, // TimestampExtended UI8
            (char)0x00, (char)0x00, (char)0x00, // StreamID UI24 Always 0.
        };
        char video[] = {
            (char)0x01, (char)0x02, (char)0x03, (char)0x04,
            (char)0x04, (char)0x03, (char)0x02, (char)0x01
        };
        char pts[] = { (char)0x00, (char)0x00, (char)0x00, (char)19 };
        fs.mock_append_data(tag_header, 11);
        fs.mock_append_data(video, 8);
        fs.mock_append_data(pts, 4);
    }
    // push audio tag
    if (true) {
        // 11bytes tag header
        char tag_header[] = {
            (char)8, // TagType UB [5], 8 = audio
            (char)0x00, (char)0x00, (char)0x08, // DataSize UI24 Length of the message.
            (char)0x00, (char)0x00, (char)0x30, // Timestamp UI24 Time in milliseconds at which the data in this tag applies.
            (char)0x00, // TimestampExtended UI8
            (char)0x00, (char)0x00, (char)0x00, // StreamID UI24 Always 0.
        };
        char audio[] = {
            (char)0x01, (char)0x02, (char)0x03, (char)0x04,
            (char)0x04, (char)0x03, (char)0x02, (char)0x01
        };
        char pts[] = { (char)0x00, (char)0x00, (char)0x00, (char)19 };
        fs.mock_append_data(tag_header, 11);
        fs.mock_append_data(audio, 8);
        fs.mock_append_data(pts, 4);
    }
    
    fs.mock_reset_offset();
    
    int64_t start = 0;
    int size = 0;
    EXPECT_TRUE(ERROR_SUCCESS == dec.read_sequence_header_summary(&start, &size));
    EXPECT_EQ(23, (int)start);
    EXPECT_EQ(46, size);
}

/**
* test the flv vod stream decoder,
* seek stream after got the offset and start of flv sequence header,
* to directly response flv data by seek to the offset of file.
*/
VOID TEST(KernelFlvTest, FlvVSDecoderSeek)
{
    MockSrsFileReader fs;
    SrsFlvVodStreamDecoder dec;
    ASSERT_TRUE(ERROR_SUCCESS == fs.open(""));
    ASSERT_TRUE(ERROR_SUCCESS == dec.initialize(&fs));
    
    // 11bytes tag header
    char tag_header[] = {
        (char)8, // TagType UB [5], 8 = audio
        (char)0x00, (char)0x00, (char)0x08, // DataSize UI24 Length of the message.
        (char)0x00, (char)0x00, (char)0x30, // Timestamp UI24 Time in milliseconds at which the data in this tag applies.
        (char)0x00, // TimestampExtended UI8
        (char)0x00, (char)0x00, (char)0x00, // StreamID UI24 Always 0.
    };
    fs.mock_append_data(tag_header, 11);
    EXPECT_TRUE(11 == fs.offset);

    EXPECT_TRUE(ERROR_SUCCESS == dec.seek2(0));
    EXPECT_TRUE(0 == fs.offset);

    EXPECT_TRUE(ERROR_SUCCESS == dec.seek2(5));
    EXPECT_TRUE(5 == fs.offset);
}

/**
* test the stream utility, access pos
*/
VOID TEST(KernelStreamTest, StreamPos)
{
    char data[1024];
    SrsBuffer s(data, 1024);
    EXPECT_TRUE(s.pos() == 0);
    
    s.read_bytes(data, 1024);
    EXPECT_TRUE(s.pos() == 1024);
}

/**
* test the stream utility, access empty
*/
VOID TEST(KernelStreamTest, StreamEmpty)
{
    char data[1024];
    SrsBuffer s(data, 1024);
    EXPECT_FALSE(s.empty());
    
    s.read_bytes(data, 1024);
    EXPECT_TRUE(s.empty());
}

/**
* test the stream utility, access require
*/
VOID TEST(KernelStreamTest, StreamRequire)
{
    char data[1024];
    SrsBuffer s(data, 1024);
    EXPECT_TRUE(s.require(1));
    EXPECT_TRUE(s.require(1024));
    
    s.read_bytes(data, 1000);
    EXPECT_TRUE(s.require(1));
    
    s.read_bytes(data, 24);
    EXPECT_FALSE(s.require(1));
}

/**
* test the stream utility, skip bytes
*/
VOID TEST(KernelStreamTest, StreamSkip)
{
    char data[1024];
    SrsBuffer s(data, 1024);
    EXPECT_EQ(0, s.pos());
    
    s.skip(1);
    EXPECT_EQ(1, s.pos());

    s.skip(-1);
    EXPECT_EQ(0 , s.pos());
}

/**
* test the stream utility, read 1bytes
*/
VOID TEST(KernelStreamTest, StreamRead1Bytes)
{
    char data[1024];
    SrsBuffer s(data, 1024);
    
    data[0] = 0x12;
    data[99] = 0x13;
    data[100] = 0x14;
    data[101] = 0x15;
    EXPECT_EQ(0x12, s.read_1bytes());
    
    s.skip(-1 * s.pos());
    s.skip(100);
    EXPECT_EQ(0x14, s.read_1bytes());
}

/**
* test the stream utility, read 2bytes
*/
VOID TEST(KernelStreamTest, StreamRead2Bytes)
{
    char data[1024];
    SrsBuffer s(data, 1024);
    
    data[0] = 0x01;
    data[1] = 0x02;
    data[2] = 0x03;
    data[3] = 0x04;
    data[4] = 0x05;
    data[5] = 0x06;
    data[6] = 0x07;
    data[7] = 0x08;
    data[8] = 0x09;
    data[9] = 0x0a;
    
    EXPECT_EQ(0x0102, s.read_2bytes());
    EXPECT_EQ(0x0304, s.read_2bytes());

    s.skip(-1 * s.pos());
    s.skip(3);
    EXPECT_EQ(0x0405, s.read_2bytes());
}

/**
* test the stream utility, read 3bytes
*/
VOID TEST(KernelStreamTest, StreamRead3Bytes)
{
    char data[1024];
    SrsBuffer s(data, 1024);
    
    data[0] = 0x01;
    data[1] = 0x02;
    data[2] = 0x03;
    data[3] = 0x04;
    data[4] = 0x05;
    data[5] = 0x06;
    data[6] = 0x07;
    data[7] = 0x08;
    data[8] = 0x09;
    data[9] = 0x0a;
    
    EXPECT_EQ(0x010203, s.read_3bytes());
    EXPECT_EQ(0x040506, s.read_3bytes());

    s.skip(-1 * s.pos());
    s.skip(5);
    EXPECT_EQ(0x060708, s.read_3bytes());
}

/**
* test the stream utility, read 4bytes
*/
VOID TEST(KernelStreamTest, StreamRead4Bytes)
{
    char data[1024];
    SrsBuffer s(data, 1024);
    
    data[0] = 0x01;
    data[1] = 0x02;
    data[2] = 0x03;
    data[3] = 0x04;
    data[4] = 0x05;
    data[5] = 0x06;
    data[6] = 0x07;
    data[7] = 0x08;
    data[8] = 0x09;
    data[9] = 0x0a;
    
    EXPECT_EQ(0x01020304, s.read_4bytes());
    EXPECT_EQ(0x05060708, s.read_4bytes());

    s.skip(-1 * s.pos());
    s.skip(5);
    EXPECT_EQ(0x06070809, s.read_4bytes());
}

/**
* test the stream utility, read 8bytes
*/
VOID TEST(KernelStreamTest, StreamRead8Bytes)
{
    char data[1024];
    SrsBuffer s(data, 1024);
    
    data[0] = 0x01;
    data[1] = 0x02;
    data[2] = 0x03;
    data[3] = 0x04;
    data[4] = 0x05;
    data[5] = 0x06;
    data[6] = 0x07;
    data[7] = 0x08;
    data[8] = 0x09;
    data[9] = 0x0a;
    data[10] = 0x0b;
    data[11] = 0x0c;
    data[12] = 0x0d;
    data[13] = 0x0e;
    data[14] = 0x0f;
    data[15] = 0x10;
    data[16] = 0x11;
    data[17] = 0x12;
    data[18] = 0x13;
    data[19] = 0x14;
    
    EXPECT_EQ(0x0102030405060708LL, s.read_8bytes());
    EXPECT_EQ(0x090a0b0c0d0e0f10LL, s.read_8bytes());

    s.skip(-1 * s.pos());
    s.skip(5);
    EXPECT_EQ(0x060708090a0b0c0dLL, s.read_8bytes());
}

/**
* test the stream utility, read string
*/
VOID TEST(KernelStreamTest, StreamReadString)
{
    char data[] = "Hello, world!";
    SrsBuffer s(data, sizeof(data) - 1);
    
    string str = s.read_string(2);
    EXPECT_STREQ("He", str.c_str());
    
    str = s.read_string(2);
    EXPECT_STREQ("ll", str.c_str());
    
    s.skip(3);
    str = s.read_string(6);
    EXPECT_STREQ("world!", str.c_str());
    
    EXPECT_TRUE(s.empty());
}

/**
* test the stream utility, read bytes
*/
VOID TEST(KernelStreamTest, StreamReadBytes)
{
    char data[] = "Hello, world!";
    SrsBuffer s(data, sizeof(data) - 1);
    
    char bytes[64];
    s.read_bytes(bytes, 2);
    bytes[2] = 0;
    EXPECT_STREQ("He", bytes);
    
    s.read_bytes(bytes, 2);
    bytes[2] = 0;
    EXPECT_STREQ("ll", bytes);
    
    s.skip(3);
    s.read_bytes(bytes, 6);
    bytes[6] = 0;
    EXPECT_STREQ("world!", bytes);
    
    EXPECT_TRUE(s.empty());
}

/**
* test the stream utility, write 1bytes
*/
VOID TEST(KernelStreamTest, StreamWrite1Bytes)
{
    char data[1024];
    SrsBuffer s(data, 1024);
    
    s.write_1bytes(0x10);
    s.write_1bytes(0x11);
    s.write_1bytes(0x12);
    s.write_1bytes(0x13);

    s.skip(-1 * s.pos());
    EXPECT_EQ(0x10, s.read_1bytes());
    s.skip(2);
    EXPECT_EQ(0x13, s.read_1bytes());
}

/**
* test the stream utility, write 2bytes
*/
VOID TEST(KernelStreamTest, StreamWrite2Bytes)
{
    char data[1024];
    SrsBuffer s(data, 1024);
    
    s.write_2bytes(0x1011);
    s.write_2bytes(0x1213);
    s.write_2bytes(0x1415);
    s.write_2bytes(0x1617);
    s.write_2bytes(0x1819);

    s.skip(-1 * s.pos());
    EXPECT_EQ(0x10, s.read_1bytes());
    s.skip(2);
    EXPECT_EQ(0x13, s.read_1bytes());
    s.skip(5);
    EXPECT_EQ(0x19, s.read_1bytes());
}

/**
* test the stream utility, write 3bytes
*/
VOID TEST(KernelStreamTest, StreamWrite3Bytes)
{
    char data[1024];
    SrsBuffer s(data, 1024);
    
    s.write_3bytes(0x101112);
    s.write_3bytes(0x131415);
    s.write_3bytes(0x161718);
    s.write_3bytes(0x192021);

    s.skip(-1 * s.pos());
    EXPECT_EQ(0x10, s.read_1bytes());
    s.skip(2);
    EXPECT_EQ(0x13, s.read_1bytes());
    s.skip(5);
    EXPECT_EQ(0x19, s.read_1bytes());
}

/**
* test the stream utility, write 34bytes
*/
VOID TEST(KernelStreamTest, StreamWrite4Bytes)
{
    char data[1024];
    SrsBuffer s(data, 1024);
    
    s.write_4bytes(0x10111213);
    s.write_4bytes(0x14151617);
    s.write_4bytes(0x18192021);

    s.skip(-1 * s.pos());
    EXPECT_EQ(0x10, s.read_1bytes());
    s.skip(2);
    EXPECT_EQ(0x13, s.read_1bytes());
    s.skip(5);
    EXPECT_EQ(0x19, s.read_1bytes());
}

/**
* test the stream utility, write 8bytes
*/
VOID TEST(KernelStreamTest, StreamWrite8Bytes)
{
    char data[1024];
    SrsBuffer s(data, 1024);
    
    s.write_8bytes(0x1011121314151617LL);
    s.write_8bytes(0x1819202122232425LL);

    s.skip(-1 * s.pos());
    EXPECT_EQ(0x10, s.read_1bytes());
    s.skip(2);
    EXPECT_EQ(0x13, s.read_1bytes());
    s.skip(5);
    EXPECT_EQ(0x19, s.read_1bytes());
}

/**
* test the stream utility, write string
*/
VOID TEST(KernelStreamTest, StreamWriteString)
{
    char data[1024];
    SrsBuffer s(data, 1024);
    
    char str[] = {
        (char)0x10, (char)0x11, (char)0x12, (char)0x13,
        (char)0x14, (char)0x15, (char)0x16, (char)0x17, 
        (char)0x18, (char)0x19, (char)0x20, (char)0x21
    };
    string str1;
    str1.append(str, 12);
    
    s.write_string(str1);

    s.skip(-1 * s.pos());
    EXPECT_EQ(0x10, s.read_1bytes());
    s.skip(2);
    EXPECT_EQ(0x13, s.read_1bytes());
    s.skip(5);
    EXPECT_EQ(0x19, s.read_1bytes());
}

/**
* test the stream utility, write bytes
*/
VOID TEST(KernelStreamTest, StreamWriteBytes)
{
    char data[1024];
    SrsBuffer s(data, 1024);
    
    char str[] = {
        (char)0x10, (char)0x11, (char)0x12, (char)0x13,
        (char)0x14, (char)0x15, (char)0x16, (char)0x17, 
        (char)0x18, (char)0x19, (char)0x20, (char)0x21
    };
    
    s.write_bytes(str, 12);

    s.skip(-1 * s.pos());
    EXPECT_EQ(0x10, s.read_1bytes());
    s.skip(2);
    EXPECT_EQ(0x13, s.read_1bytes());
    s.skip(5);
    EXPECT_EQ(0x19, s.read_1bytes());
}

VOID TEST(KernelBufferTest, CoverAll)
{
    if (true) {
        MockSrsCodec codec;
        EXPECT_TRUE(0 == codec.nb_bytes());
        EXPECT_TRUE(srs_success == codec.encode(NULL));
        EXPECT_TRUE(srs_success == codec.decode(NULL));
    }
    
    if (true) {
        SrsBuffer buf((char*)"hello", 5);
        EXPECT_EQ(5, buf.size());
        EXPECT_EQ(5, buf.left());
        
        buf.read_1bytes();
        EXPECT_EQ(5, buf.size());
        EXPECT_EQ(4, buf.left());
    }
}

/**
* test the kernel utility, time
*/
VOID TEST(KernelUtilityTest, UtilityTime)
{
    srs_utime_t time = srs_get_system_time();
    EXPECT_TRUE(time > 0);
    
    srs_utime_t time1 = srs_get_system_time();
    EXPECT_EQ(time, time1);
    
    usleep(1 * SRS_UTIME_MILLISECONDS);
    time1 = srs_update_system_time();
    EXPECT_TRUE(time1 > time);
}

/**
* test the kernel utility, startup time
*/
VOID TEST(KernelUtilityTest, UtilityStartupTime)
{
    srs_utime_t time = srs_get_system_startup_time();
    EXPECT_TRUE(time > 0);
    
    srs_utime_t time1 = srs_get_system_startup_time();
    EXPECT_EQ(time, time1);
    
    usleep(1 * SRS_UTIME_MILLISECONDS);
    srs_update_system_time();
    time1 = srs_get_system_startup_time();
    EXPECT_EQ(time, time1);
}

/**
* test the kernel utility, little endian
*/
VOID TEST(KernelUtilityTest, UtilityLittleEndian)
{
    EXPECT_TRUE(srs_is_little_endian());
}

/**
* test the kernel utility, string
*/
VOID TEST(KernelUtilityTest, UtilityString)
{
    string str = "Hello, World! Hello, SRS!";
    string str1;
    
    str1 = srs_string_replace(str, "xxx", "");
    EXPECT_STREQ("Hello, World! Hello, SRS!", str1.c_str());
    
    str1 = srs_string_replace(str, "He", "XX");
    EXPECT_STREQ("XXllo, World! XXllo, SRS!", str1.c_str());
    
    str1 = srs_string_replace(str, "o", "XX");
    EXPECT_STREQ("HellXX, WXXrld! HellXX, SRS!", str1.c_str());

    str1 = srs_string_trim_start(str, "x");
    EXPECT_STREQ("Hello, World! Hello, SRS!", str1.c_str());

    str1 = srs_string_trim_start(str, "S!R");
    EXPECT_STREQ("Hello, World! Hello, SRS!", str1.c_str());

    str1 = srs_string_trim_start(str, "lHe");
    EXPECT_STREQ("o, World! Hello, SRS!", str1.c_str());
    
    str1 = srs_string_trim_end(str, "x");
    EXPECT_STREQ("Hello, World! Hello, SRS!", str1.c_str());
    
    str1 = srs_string_trim_end(str, "He");
    EXPECT_STREQ("Hello, World! Hello, SRS!", str1.c_str());
    
    str1 = srs_string_trim_end(str, "S!R");
    EXPECT_STREQ("Hello, World! Hello, ", str1.c_str());
    
    str1 = srs_string_remove(str, "x");
    EXPECT_STREQ("Hello, World! Hello, SRS!", str1.c_str());
    
    str1 = srs_string_remove(str, "o");
    EXPECT_STREQ("Hell, Wrld! Hell, SRS!", str1.c_str());
    
    str1 = srs_string_remove(str, "ol");
    EXPECT_STREQ("He, Wrd! He, SRS!", str1.c_str());

    str1 = srs_erase_first_substr(str, "Hello");
    EXPECT_STREQ(", World! Hello, SRS!", str1.c_str());

    str1 = srs_erase_first_substr(str, "XX");
    EXPECT_STREQ("Hello, World! Hello, SRS!", str1.c_str());

    str1 = srs_erase_last_substr(str, "Hello");
    EXPECT_STREQ("Hello, World! , SRS!", str1.c_str());

    str1 = srs_erase_last_substr(str, "XX");
    EXPECT_STREQ("Hello, World! Hello, SRS!", str1.c_str());
    
    EXPECT_FALSE(srs_string_ends_with("Hello", "x"));
    EXPECT_TRUE(srs_string_ends_with("Hello", "o"));
    EXPECT_TRUE(srs_string_ends_with("Hello", "lo"));
}

VOID TEST(KernelUtility, AvcUev)
{
    int32_t v;
    char data[32];
    
    if (true) {
        data[0] = 0xff;
        SrsBuffer buf((char*)data, 1); SrsBitBuffer bb(&buf); v = 1;
        srs_avc_nalu_read_uev(&bb, v);
        EXPECT_EQ(0, v);
    }
    
    if (true) {
        data[0] = 0x40;
        SrsBuffer buf((char*)data, 1); SrsBitBuffer bb(&buf); v = 0;
        srs_avc_nalu_read_uev(&bb, v);
        EXPECT_EQ(1, v);
    }
    
    if (true) {
        data[0] = 0x60;
        SrsBuffer buf((char*)data, 1); SrsBitBuffer bb(&buf); v = 0;
        srs_avc_nalu_read_uev(&bb, v);
        EXPECT_EQ(2, v);
    }
    
    if (true) {
        data[0] = 0x20;
        SrsBuffer buf((char*)data, 1); SrsBitBuffer bb(&buf); v = 0;
        srs_avc_nalu_read_uev(&bb, v);
        EXPECT_EQ(3, v);
    }
    
    if (true) {
        data[0] = 0x28;
        SrsBuffer buf((char*)data, 1); SrsBitBuffer bb(&buf); v = 0;
        srs_avc_nalu_read_uev(&bb, v);
        EXPECT_EQ(4, v);
    }
    
    if (true) {
        data[0] = 0x30;
        SrsBuffer buf((char*)data, 1); SrsBitBuffer bb(&buf); v = 0;
        srs_avc_nalu_read_uev(&bb, v);
        EXPECT_EQ(5, v);
    }
    
    if (true) {
        data[0] = 0x38;
        SrsBuffer buf((char*)data, 1); SrsBitBuffer bb(&buf); v = 0;
        srs_avc_nalu_read_uev(&bb, v);
        EXPECT_EQ(6, v);
    }
    
    if (true) {
        data[0] = 0x10;
        SrsBuffer buf((char*)data, 1); SrsBitBuffer bb(&buf); v = 0;
        srs_avc_nalu_read_uev(&bb, v);
        EXPECT_EQ(7, v);
    }
    
    if (true) {
        data[0] = 0x12;
        SrsBuffer buf((char*)data, 1); SrsBitBuffer bb(&buf); v = 0;
        srs_avc_nalu_read_uev(&bb, v);
        EXPECT_EQ(8, v);
    }
    
    if (true) {
        data[0] = 0x14;
        SrsBuffer buf((char*)data, 1); SrsBitBuffer bb(&buf); v = 0;
        srs_avc_nalu_read_uev(&bb, v);
        EXPECT_EQ(9, v);
    }
    
    if (true) {
        data[0] = 0x01; data[1] = 0x12;
        SrsBuffer buf((char*)data, 2); SrsBitBuffer bb(&buf); v = 0;
        srs_avc_nalu_read_uev(&bb, v);
        EXPECT_EQ(128-1+9, v);
    }
    
    if (true) {
        data[0] = 0x00; data[1] = 0x91; data[2] = 0x00;
        SrsBuffer buf((char*)data, 3); SrsBitBuffer bb(&buf); v = 0;
        srs_avc_nalu_read_uev(&bb, v);
        EXPECT_EQ(256-1+0x22, v);
    }
}

extern void __crc32_make_table(uint32_t t[256], uint32_t poly, bool reflect_in);

VOID TEST(KernelUtility, CRC32MakeTable)
{
    uint32_t t[256];
    
    // IEEE, @see https://github.com/ossrs/srs/blob/608c88b8f2b352cdbce3b89b9042026ea907e2d3/trunk/src/kernel/srs_kernel_utility.cpp#L770
    __crc32_make_table(t, 0x4c11db7, true);
    
    EXPECT_EQ((uint32_t)0x00000000, t[0]);
    EXPECT_EQ((uint32_t)0x77073096, t[1]);
    EXPECT_EQ((uint32_t)0xEE0E612C, t[2]);
    EXPECT_EQ((uint32_t)0x990951BA, t[3]);
    EXPECT_EQ((uint32_t)0x076DC419, t[4]);
    EXPECT_EQ((uint32_t)0x706AF48F, t[5]);
    EXPECT_EQ((uint32_t)0xE963A535, t[6]);
    EXPECT_EQ((uint32_t)0x9E6495A3, t[7]);
    
    EXPECT_EQ((uint32_t)0xB3667A2E, t[248]);
    EXPECT_EQ((uint32_t)0xC4614AB8, t[249]);
    EXPECT_EQ((uint32_t)0x5D681B02, t[250]);
    EXPECT_EQ((uint32_t)0x2A6F2B94, t[251]);
    EXPECT_EQ((uint32_t)0xB40BBE37, t[252]);
    EXPECT_EQ((uint32_t)0xC30C8EA1, t[253]);
    EXPECT_EQ((uint32_t)0x5A05DF1B, t[254]);
    EXPECT_EQ((uint32_t)0x2D02EF8D, t[255]);
    
    // IEEE, @see https://github.com/ossrs/srs/blob/608c88b8f2b352cdbce3b89b9042026ea907e2d3/trunk/src/kernel/srs_kernel_utility.cpp#L770
    __crc32_make_table(t, 0x4c11db7, true);
    
    EXPECT_EQ((uint32_t)0x00000000, t[0]);
    EXPECT_EQ((uint32_t)0x77073096, t[1]);
    EXPECT_EQ((uint32_t)0xEE0E612C, t[2]);
    EXPECT_EQ((uint32_t)0x990951BA, t[3]);
    EXPECT_EQ((uint32_t)0x076DC419, t[4]);
    EXPECT_EQ((uint32_t)0x706AF48F, t[5]);
    EXPECT_EQ((uint32_t)0xE963A535, t[6]);
    EXPECT_EQ((uint32_t)0x9E6495A3, t[7]);
    
    EXPECT_EQ((uint32_t)0xB3667A2E, t[248]);
    EXPECT_EQ((uint32_t)0xC4614AB8, t[249]);
    EXPECT_EQ((uint32_t)0x5D681B02, t[250]);
    EXPECT_EQ((uint32_t)0x2A6F2B94, t[251]);
    EXPECT_EQ((uint32_t)0xB40BBE37, t[252]);
    EXPECT_EQ((uint32_t)0xC30C8EA1, t[253]);
    EXPECT_EQ((uint32_t)0x5A05DF1B, t[254]);
    EXPECT_EQ((uint32_t)0x2D02EF8D, t[255]);
    
    // MPEG, @see https://github.com/ossrs/srs/blob/608c88b8f2b352cdbce3b89b9042026ea907e2d3/trunk/src/kernel/srs_kernel_utility.cpp#L691
    __crc32_make_table(t, 0x4c11db7, false);
    
    EXPECT_EQ((uint32_t)0x00000000, t[0]);
    EXPECT_EQ((uint32_t)0x04c11db7, t[1]);
    EXPECT_EQ((uint32_t)0x09823b6e, t[2]);
    EXPECT_EQ((uint32_t)0x0d4326d9, t[3]);
    EXPECT_EQ((uint32_t)0x130476dc, t[4]);
    EXPECT_EQ((uint32_t)0x17c56b6b, t[5]);
    EXPECT_EQ((uint32_t)0x1a864db2, t[6]);
    EXPECT_EQ((uint32_t)0x1e475005, t[7]);
    
    EXPECT_EQ((uint32_t)0xafb010b1, t[248]);
    EXPECT_EQ((uint32_t)0xab710d06, t[249]);
    EXPECT_EQ((uint32_t)0xa6322bdf, t[250]);
    EXPECT_EQ((uint32_t)0xa2f33668, t[251]);
    EXPECT_EQ((uint32_t)0xbcb4666d, t[252]);
    EXPECT_EQ((uint32_t)0xb8757bda, t[253]);
    EXPECT_EQ((uint32_t)0xb5365d03, t[254]);
    EXPECT_EQ((uint32_t)0xb1f740b4, t[255]);
    
    // MPEG, @see https://github.com/ossrs/srs/blob/608c88b8f2b352cdbce3b89b9042026ea907e2d3/trunk/src/kernel/srs_kernel_utility.cpp#L691
    __crc32_make_table(t, 0x4c11db7, false);
    
    EXPECT_EQ((uint32_t)0x00000000, t[0]);
    EXPECT_EQ((uint32_t)0x04c11db7, t[1]);
    EXPECT_EQ((uint32_t)0x09823b6e, t[2]);
    EXPECT_EQ((uint32_t)0x0d4326d9, t[3]);
    EXPECT_EQ((uint32_t)0x130476dc, t[4]);
    EXPECT_EQ((uint32_t)0x17c56b6b, t[5]);
    EXPECT_EQ((uint32_t)0x1a864db2, t[6]);
    EXPECT_EQ((uint32_t)0x1e475005, t[7]);
    
    EXPECT_EQ((uint32_t)0xafb010b1, t[248]);
    EXPECT_EQ((uint32_t)0xab710d06, t[249]);
    EXPECT_EQ((uint32_t)0xa6322bdf, t[250]);
    EXPECT_EQ((uint32_t)0xa2f33668, t[251]);
    EXPECT_EQ((uint32_t)0xbcb4666d, t[252]);
    EXPECT_EQ((uint32_t)0xb8757bda, t[253]);
    EXPECT_EQ((uint32_t)0xb5365d03, t[254]);
    EXPECT_EQ((uint32_t)0xb1f740b4, t[255]);
}

VOID TEST(KernelUtility, CRC32IEEE)
{
    if (true) {
        string datas[] = {
            "123456789", "srs", "ossrs.net",
            "SRS's a simplest, conceptual integrated, industrial-strength live streaming origin cluster."
        };
        
        uint32_t checksums[] = {
            0xcbf43926, 0x7df334e9, 0x2f52242b,
            0x7e8677bd,
        };
        
        for (int i = 0; i < (int)(sizeof(datas)/sizeof(string)); i++) {
            string data = datas[i];
            uint32_t checksum = checksums[i];
            EXPECT_EQ(checksum, srs_crc32_ieee(data.data(), data.length(), 0));
        }
        
        uint32_t previous = 0;
        for (int i = 0; i < (int)(sizeof(datas)/sizeof(string)); i++) {
            string data = datas[i];
            previous = srs_crc32_ieee(data.data(), data.length(), previous);
        }
        EXPECT_EQ((uint32_t)0x431b8785, previous);
    }
    
    if (true) {
        string data = "123456789srs";
        EXPECT_EQ((uint32_t)0xf567b5cf, srs_crc32_ieee(data.data(), data.length(), 0));
    }
    
    if (true) {
        string data = "123456789";
        EXPECT_EQ((uint32_t)0xcbf43926, srs_crc32_ieee(data.data(), data.length(), 0));
        
        data = "srs";
        EXPECT_EQ((uint32_t)0xf567b5cf, srs_crc32_ieee(data.data(), data.length(), 0xcbf43926));
    }
}

VOID TEST(KernelUtility, CRC32MPEGTS)
{
    string datas[] = {
        "123456789", "srs", "ossrs.net",
        "SRS's a simplest, conceptual integrated, industrial-strength live streaming origin cluster."
    };
    
    uint32_t checksums[] = {
        0x0376e6e7, 0xd9089591, 0xbd17933f,
        0x9f389f7d
    };
    
    for (int i = 0; i < (int)(sizeof(datas)/sizeof(string)); i++) {
        string data = datas[i];
        uint32_t checksum = checksums[i];
        EXPECT_EQ(checksum, (uint32_t)srs_crc32_mpegts(data.data(), data.length()));
    }
}

VOID TEST(KernelUtility, Base64Decode)
{
    string cipher = "dXNlcjpwYXNzd29yZA==";
    string expect = "user:password";
    
    string plaintext;
    EXPECT_TRUE(srs_success == srs_av_base64_decode(cipher, plaintext));
    EXPECT_TRUE(expect == plaintext);
}

VOID TEST(KernelUtility, StringToHex)
{
    if (true) {
        uint8_t h[16];
        EXPECT_EQ(-1, srs_hex_to_data(h, NULL, 0));
        EXPECT_EQ(-1, srs_hex_to_data(h, "0", 1));
        EXPECT_EQ(-1, srs_hex_to_data(h, "0g", 2));
    }
    
    if (true) {
        string s = "139056E5A0";
        uint8_t h[16];
        
        int n = srs_hex_to_data(h, s.data(), s.length());
        EXPECT_EQ(n, 5);
        EXPECT_EQ(0x13, h[0]);
        EXPECT_EQ(0x90, h[1]);
        EXPECT_EQ(0x56, h[2]);
        EXPECT_EQ(0xe5, h[3]);
        EXPECT_EQ(0xa0, h[4]);
    }
}

VOID TEST(KernelUtility, StringUtils)
{
    if (true) {
        EXPECT_TRUE("srs" == srs_string_replace("srsx", "x", ""));
        EXPECT_TRUE("srs" == srs_string_replace("srs", "", ""));
        EXPECT_TRUE("srs" == srs_string_replace("sxs", "x", "r"));
        EXPECT_TRUE("srs" == srs_string_replace("xrx", "x", "s"));
        EXPECT_TRUE("srs" == srs_string_replace("xyrxy", "xy", "s"));
        EXPECT_TRUE("srs" == srs_string_replace("sxys", "xy", "r"));
    }
    
    if (true) {
        EXPECT_TRUE("srs" == srs_string_trim_end("srs", ""));
        EXPECT_TRUE("srs" == srs_string_trim_end("srsx", "x"));
        EXPECT_TRUE("srs" == srs_string_trim_end("srsxx", "x"));
        EXPECT_TRUE("srs" == srs_string_trim_end("srsxy", "xy"));
        EXPECT_TRUE("srs" == srs_string_trim_end("srsx ", "x "));
        EXPECT_TRUE("srs" == srs_string_trim_end("srsx yx", "x y"));
        EXPECT_TRUE("srs" == srs_string_trim_end("srsx yxy", "x y"));
    }
    
    if (true) {
        EXPECT_TRUE("srs" == srs_string_trim_start("srs", ""));
        EXPECT_TRUE("srs" == srs_string_trim_start("xsrs", "x"));
        EXPECT_TRUE("srs" == srs_string_trim_start("xxsrs", "x"));
        EXPECT_TRUE("srs" == srs_string_trim_start("xysrs", "xy"));
        EXPECT_TRUE("srs" == srs_string_trim_start("x srs", "x "));
        EXPECT_TRUE("srs" == srs_string_trim_start("x yxsrs", "x y"));
        EXPECT_TRUE("srs" == srs_string_trim_start("x yxysrs", "x y"));
    }
    
    if (true) {
        EXPECT_TRUE("srs" == srs_string_remove("srs", ""));
        EXPECT_TRUE("srs" == srs_string_remove("xsrs", "x"));
        EXPECT_TRUE("srs" == srs_string_remove("xsrsx", "x"));
        EXPECT_TRUE("srs" == srs_string_remove("xsxrsx", "x"));
        EXPECT_TRUE("srs" == srs_string_remove("yxsxrsx", "xy"));
        EXPECT_TRUE("srs" == srs_string_remove("yxsxrysx", "xy"));
    }
    
    if (true) {
        EXPECT_TRUE("srs" == srs_erase_first_substr("srs", ""));
        EXPECT_TRUE("srs" == srs_erase_first_substr("xsrs", "x"));
        EXPECT_TRUE("srs" == srs_erase_first_substr("srssrs", "srs"));
    }
    
    if (true) {
        EXPECT_TRUE("srs" == srs_erase_last_substr("srs", ""));
        EXPECT_TRUE("srs" == srs_erase_last_substr("srsx", "x"));
        EXPECT_TRUE("srs" == srs_erase_last_substr("srssrs", "srs"));
    }
    
    if (true) {
        EXPECT_TRUE(srs_string_ends_with("srs", "s"));
        EXPECT_TRUE(srs_string_ends_with("srs", "rs"));
        EXPECT_TRUE(srs_string_ends_with("srs", "srs"));
        EXPECT_TRUE(!srs_string_ends_with("srs", "x"));
        EXPECT_TRUE(!srs_string_ends_with("srs", "srx"));
        
        EXPECT_TRUE(srs_string_ends_with("srs", "r", "s"));
        EXPECT_TRUE(srs_string_ends_with("srs", "sr", "s"));
        EXPECT_TRUE(srs_string_ends_with("srs", "x", "r", "s"));
        EXPECT_TRUE(srs_string_ends_with("srs", "y", "x", "r", "s"));
        EXPECT_TRUE(!srs_string_ends_with("srs", "x", "y", "z", "srx"));
    }
    
    if (true) {
        EXPECT_TRUE(srs_string_starts_with("srs", "s"));
        EXPECT_TRUE(srs_string_starts_with("srs", "sr"));
        EXPECT_TRUE(srs_string_starts_with("srs", "srs"));
        EXPECT_TRUE(!srs_string_starts_with("srs", "x"));
        
        EXPECT_TRUE(srs_string_starts_with("srs", "r", "s"));
        EXPECT_TRUE(srs_string_starts_with("srs", "sr", "s"));
        EXPECT_TRUE(srs_string_starts_with("srs", "x", "r", "s"));
        EXPECT_TRUE(srs_string_starts_with("srs", "y", "x", "r", "s"));
        EXPECT_TRUE(!srs_string_starts_with("srs", "x", "y", "z", "srx"));
    }
    
    if (true) {
        EXPECT_TRUE(srs_string_contains("srs", "s"));
        EXPECT_TRUE(srs_string_contains("srs", "s", "sr"));
        EXPECT_TRUE(srs_string_contains("srs", "s", "sr", "srs"));
    }
    
    if (true) {
        vector<string> flags;
        EXPECT_TRUE("srs" == srs_string_min_match("srs", flags));
    }
    
    if (true) {
        vector<string> flags;
        flags.push_back("s");
        EXPECT_TRUE("s" == srs_string_min_match("srs", flags));
    }
    
    if (true) {
        vector<string> flags;
        flags.push_back("sr");
        EXPECT_TRUE("sr" == srs_string_min_match("srs", flags));
    }
    
    if (true) {
        vector<string> flags;
        flags.push_back("rs");
        EXPECT_TRUE("rs" == srs_string_min_match("srs", flags));
    }
    
    if (true) {
        vector<string> flags;
        flags.push_back("x"); flags.push_back("rs");
        EXPECT_TRUE("rs" == srs_string_min_match("srs", flags));
    }
    
    if (true) {
        vector<string> flags;
        flags.push_back("x");
        EXPECT_TRUE("" == srs_string_min_match("srs", flags));
    }
    
    if (true) {
        EXPECT_TRUE("srs" == srs_string_split("srs", "").at(0));
        EXPECT_TRUE("s" == srs_string_split("srs", "r").at(0));
        EXPECT_TRUE("s" == srs_string_split("srs", "rs").at(0));
    }
}

VOID TEST(KernelUtility, BytesUtils)
{
    if (true) {
        EXPECT_TRUE(srs_bytes_equals(NULL, NULL, 0));
        EXPECT_TRUE(srs_bytes_equals((void*)"s", (void*)"s", 0));
        EXPECT_TRUE(srs_bytes_equals((void*)"s", (void*)"s", 1));
        EXPECT_TRUE(srs_bytes_equals((void*)"s", (void*)"srs", 1));
        EXPECT_TRUE(!srs_bytes_equals((void*)"xrs", (void*)"srs", 3));
    }
}

VOID TEST(KernelUtility, PathUtils)
{
    if (true) {
        EXPECT_TRUE("" == srs_path_dirname(""));
        EXPECT_TRUE("/" == srs_path_dirname("/"));
        EXPECT_TRUE("/" == srs_path_dirname("//"));
        EXPECT_TRUE("/" == srs_path_dirname("/stream"));
        EXPECT_TRUE("live" == srs_path_dirname("live/stream"));
    }
    
    if (true) {
        EXPECT_TRUE("" == srs_path_basename(""));
        EXPECT_TRUE("/" == srs_path_basename("/"));
        EXPECT_TRUE("stream" == srs_path_basename("/stream"));
        EXPECT_TRUE("stream" == srs_path_basename("live/stream"));
        EXPECT_TRUE("stream.flv" == srs_path_basename("live/stream.flv"));
    }
    
    if (true) {
        EXPECT_TRUE("" == srs_path_filename(""));
        EXPECT_TRUE("stream" == srs_path_filename("stream.flv"));
    }
    
    if (true) {
        EXPECT_TRUE("" == srs_path_filext(""));
        EXPECT_TRUE(".flv" == srs_path_filext("stream.flv"));
    }
}

VOID TEST(KernelUtility, AnnexbUtils)
{
    if (true) {
        EXPECT_TRUE(!srs_avc_startswith_annexb(NULL, NULL));
        
        SrsBuffer buf;
        EXPECT_TRUE(!srs_avc_startswith_annexb(&buf, NULL));
    }
    
    if (true) {
        char data[] = {0x00};
        SrsBuffer buf((char*)data, sizeof(data));
        EXPECT_TRUE(!srs_avc_startswith_annexb(&buf, NULL));
    }
    
    if (true) {
        char data[] = {0x00, 0x00};
        SrsBuffer buf((char*)data, sizeof(data));
        EXPECT_TRUE(!srs_avc_startswith_annexb(&buf, NULL));
    }
    
    if (true) {
        char data[] = {0x00, 0x00, 0x02};
        SrsBuffer buf((char*)data, sizeof(data));
        EXPECT_TRUE(!srs_avc_startswith_annexb(&buf, NULL));
    }
    
    if (true) {
        char data[] = {0x00, 0x00, 0x01};
        SrsBuffer buf((char*)data, sizeof(data));
        EXPECT_TRUE(srs_avc_startswith_annexb(&buf, NULL));
    }
    
    if (true) {
        char data[] = {0x00, 0x01, 0x00, 00};
        SrsBuffer buf((char*)data, sizeof(data));
        EXPECT_TRUE(!srs_avc_startswith_annexb(&buf, NULL));
    }
    
    if (true) {
        char data[] = {0x00, 0x00, 0x01};
        SrsBuffer buf((char*)data, sizeof(data));
        
        int start;
        EXPECT_TRUE(srs_avc_startswith_annexb(&buf, &start));
        EXPECT_EQ(3, start);
    }
    
    if (true) {
        char data[] = {0x00, 0x00, 0x00, 0x01};
        SrsBuffer buf((char*)data, sizeof(data));
        
        int start;
        EXPECT_TRUE(srs_avc_startswith_annexb(&buf, &start));
        EXPECT_EQ(4, start);
    }
}

VOID TEST(KernelUtility, AdtsUtils)
{
    if (true) {
        EXPECT_TRUE(!srs_aac_startswith_adts(NULL));
        
        SrsBuffer buf;
        EXPECT_TRUE(!srs_aac_startswith_adts(&buf));
    }
    
    if (true) {
        char data[] = {0x00};
        SrsBuffer buf((char*)data, sizeof(data));
        EXPECT_TRUE(!srs_aac_startswith_adts(&buf));
    }
    
    if (true) {
        uint8_t data[] = {0xFF, 0x00};
        SrsBuffer buf((char*)data, sizeof(data));
        EXPECT_TRUE(!srs_aac_startswith_adts(&buf));
    }
    
    if (true) {
        uint8_t data[] = {0xFF, 0xF0};
        SrsBuffer buf((char*)data, sizeof(data));
        EXPECT_TRUE(srs_aac_startswith_adts(&buf));
    }
}

VOID TEST(KernelUtility, RTMPUtils)
{
    if (true) {
        char buf[16];
        EXPECT_EQ(0, srs_chunk_header_c0(0, 0, 0, 0, 0, NULL, 0));
        EXPECT_EQ(12, srs_chunk_header_c0(0, 0, 0, 0, 0, buf, 16));
    }
    
    if (true) {
        char buf[16];
        EXPECT_EQ(12, srs_chunk_header_c0(1, 0, 0, 0, 0, buf, 16));
        
        EXPECT_EQ(1, buf[0]);
    }
    
    if (true) {
        char buf[16];
        EXPECT_EQ(12, srs_chunk_header_c0(1, 0x345678, 0, 0, 0, buf, 16));
        
        EXPECT_EQ(1, buf[0]);
        
        EXPECT_EQ(0x34, buf[1]);
        EXPECT_EQ(0x56, buf[2]);
        EXPECT_EQ(0x78, buf[3]);
    }
    
    if (true) {
        char buf[16];
        EXPECT_EQ(12, srs_chunk_header_c0(1, 0x345678, 0x123456, 0, 0, buf, 16));
        
        EXPECT_EQ(1, buf[0]);
        
        EXPECT_EQ(0x34, buf[1]);
        EXPECT_EQ(0x56, buf[2]);
        EXPECT_EQ(0x78, buf[3]);
        
        EXPECT_EQ(0x12, buf[4]);
        EXPECT_EQ(0x34, buf[5]);
        EXPECT_EQ(0x56, buf[6]);
    }
    
    if (true) {
        char buf[16];
        EXPECT_EQ(12, srs_chunk_header_c0(1, 0x345678, 0x123456, 2, 0, buf, 16));
        
        EXPECT_EQ(1, buf[0]);
        
        EXPECT_EQ(0x34, buf[1]);
        EXPECT_EQ(0x56, buf[2]);
        EXPECT_EQ(0x78, buf[3]);
        
        EXPECT_EQ(0x12, buf[4]);
        EXPECT_EQ(0x34, buf[5]);
        EXPECT_EQ(0x56, buf[6]);
        
        EXPECT_EQ(2, buf[7]);
    }
    
    if (true) {
        char buf[16];
        EXPECT_EQ(12, srs_chunk_header_c0(1, 0x345678, 0x123456, 2, 0x12345678, buf, 16));
        
        EXPECT_EQ(1, buf[0]);
        
        EXPECT_EQ(0x34, buf[1]);
        EXPECT_EQ(0x56, buf[2]);
        EXPECT_EQ(0x78, buf[3]);
        
        EXPECT_EQ(0x12, buf[4]);
        EXPECT_EQ(0x34, buf[5]);
        EXPECT_EQ(0x56, buf[6]);
        
        EXPECT_EQ(2, buf[7]);
        
        EXPECT_EQ(0x78, buf[8]);
        EXPECT_EQ(0x56, buf[9]);
        EXPECT_EQ(0x34, buf[10]);
        EXPECT_EQ(0x12, buf[11]);
    }
    
    if (true) {
        char buf[16];
        EXPECT_EQ(16, srs_chunk_header_c0(1, 0x12345678, 0x123456, 2, 0x12345678, buf, 16));
        
        EXPECT_EQ(1, buf[0]);
        
        EXPECT_EQ((char)0xff, buf[1]);
        EXPECT_EQ((char)0xff, buf[2]);
        EXPECT_EQ((char)0xff, buf[3]);
        
        EXPECT_EQ(0x12, buf[4]);
        EXPECT_EQ(0x34, buf[5]);
        EXPECT_EQ(0x56, buf[6]);
        
        EXPECT_EQ(2, buf[7]);
        
        EXPECT_EQ(0x78, buf[8]);
        EXPECT_EQ(0x56, buf[9]);
        EXPECT_EQ(0x34, buf[10]);
        EXPECT_EQ(0x12, buf[11]);
        
        EXPECT_EQ(0x12, buf[12]);
        EXPECT_EQ(0x34, buf[13]);
        EXPECT_EQ(0x56, buf[14]);
        EXPECT_EQ(0x78, buf[15]);
    }
}

VOID TEST(KernelUtility, RTMPUtils2)
{
    if (true) {
        char buf[5];
        EXPECT_EQ(0, srs_chunk_header_c3(0, 0, NULL, 0));
        EXPECT_EQ(1, srs_chunk_header_c3(0, 0, buf, 5));
    }
    
    if (true) {
        char buf[5];
        EXPECT_EQ(1, srs_chunk_header_c3(1, 0, buf, 5));
        
        EXPECT_EQ((char)0xC1, buf[0]);
    }
    
    if (true) {
        char buf[5];
        EXPECT_EQ(1, srs_chunk_header_c3(1, 0x234567, buf, 5));
        
        EXPECT_EQ((char)0xC1, buf[0]);
    }
    
    if (true) {
        char buf[5];
        EXPECT_EQ(5, srs_chunk_header_c3(1, 0x12345678, buf, 5));
        
        EXPECT_EQ((char)0xC1, buf[0]);
        
        EXPECT_EQ((char)0x12, buf[1]);
        EXPECT_EQ((char)0x34, buf[2]);
        EXPECT_EQ((char)0x56, buf[3]);
        EXPECT_EQ((char)0x78, buf[4]);
    }
}

VOID TEST(KernelErrorTest, CoverAll)
{
    if (true) {
        EXPECT_TRUE(srs_is_system_control_error(ERROR_CONTROL_RTMP_CLOSE));
        EXPECT_TRUE(srs_is_system_control_error(ERROR_CONTROL_REPUBLISH));
        EXPECT_TRUE(srs_is_system_control_error(ERROR_CONTROL_REDIRECT));
    }
    
    if (true) {
        srs_error_t err = srs_error_new(ERROR_CONTROL_RTMP_CLOSE, "control error");
        EXPECT_TRUE(srs_is_system_control_error(err));
        srs_freep(err);
    }
    
    if (true) {
        EXPECT_TRUE(srs_is_client_gracefully_close(ERROR_SOCKET_READ));
        EXPECT_TRUE(srs_is_client_gracefully_close(ERROR_SOCKET_READ_FULLY));
        EXPECT_TRUE(srs_is_client_gracefully_close(ERROR_SOCKET_WRITE));
    }
    
    if (true) {
        srs_error_t err = srs_error_new(ERROR_SOCKET_READ, "graceful close error");
        EXPECT_TRUE(srs_is_client_gracefully_close(err));
        srs_freep(err);
    }
    
    if (true) {
        srs_error_t err = srs_error_wrap(srs_error_new(ERROR_CONTROL_RTMP_CLOSE, "control error"), "wrapped");
        EXPECT_TRUE(srs_error_desc(err) != "");
        srs_freep(err);
    }
    
    if (true) {
        EXPECT_TRUE(srs_error_desc(srs_success) == "Success");
    }
    
    if (true) {
        srs_error_t err = srs_success;
        EXPECT_TRUE(srs_success == srs_error_copy(err));
    }
    
    if (true) {
        srs_error_t err = srs_error_new(ERROR_SOCKET_READ, "graceful close error");
        srs_error_t r0 = srs_error_copy(err);
        EXPECT_TRUE(err != r0);
        srs_freep(err);
        srs_freep(r0);
    }
}

VOID TEST(KernelAACTest, TransmaxRTMP2AAC)
{
    if (true) {
        SrsAacTransmuxer m;
        MockSrsFileWriter f;
        EXPECT_TRUE(srs_success == m.initialize(&f));
        
        srs_error_t err = m.write_audio(0, (char*)"", 0);
        EXPECT_EQ(ERROR_AAC_DECODE_ERROR, srs_error_code(err));
        srs_freep(err);
        
        err = m.write_audio(0, (char*)"\x0f", 1);
        EXPECT_TRUE(ERROR_AAC_DECODE_ERROR == srs_error_code(err));
        srs_freep(err);
        
        err = m.write_audio(0, (char*)"\xaf", 1);
        EXPECT_TRUE(ERROR_AAC_DECODE_ERROR == srs_error_code(err));
        srs_freep(err);
    }
    
    if (true) {
        SrsAacTransmuxer m;
        MockSrsFileWriter f;
        EXPECT_TRUE(srs_success == m.initialize(&f));
        
        srs_error_t err = m.write_audio(0, (char*)"\xaf\x01\x00", 3);
        EXPECT_TRUE(ERROR_AAC_DECODE_ERROR == srs_error_code(err));
        srs_freep(err);
        
        EXPECT_TRUE(!m.got_sequence_header);
    }
    
    if (true) {
        SrsAacTransmuxer m;
        MockSrsFileWriter f;
        EXPECT_TRUE(srs_success == m.initialize(&f));
        
        srs_error_t err = m.write_audio(0, (char*)"\xaf\x00", 2);
        EXPECT_TRUE(ERROR_AAC_DECODE_ERROR == srs_error_code(err));
        srs_freep(err);
        
        err = m.write_audio(0, (char*)"\xaf\x00\x12\x10", 4);
        EXPECT_TRUE(srs_success == err);
        srs_freep(err);
        
        EXPECT_TRUE(m.got_sequence_header);
        EXPECT_EQ(44100, srs_aac_srates[m.aac_sample_rate]);
        EXPECT_EQ(2, m.aac_channels);
        
        err = m.write_audio(0, (char*)"\xaf\x01\xcb", 3);
        EXPECT_TRUE(srs_success == err);
        srs_freep(err);
        
        EXPECT_EQ(8, f.offset);
        EXPECT_EQ((char)0xff, f.data[0]);
        EXPECT_EQ((char)0xf1, f.data[1]);
        EXPECT_EQ((char)0x50, f.data[2]);
        EXPECT_EQ((char)0x80, f.data[3]);
        EXPECT_EQ((char)0x01, f.data[4]);
        EXPECT_EQ((char)0x00, f.data[5]);
        EXPECT_EQ((char)0xfc, f.data[6]);
        EXPECT_EQ((char)0xcb, f.data[7]);
    }
    
    if (true) {
        SrsAacTransmuxer m;
        MockSrsFileWriter f;
        EXPECT_TRUE(srs_success == m.initialize(&f));
        
        srs_error_t err = m.write_audio(0, (char*)"\xaf\x00", 2);
        EXPECT_TRUE(ERROR_AAC_DECODE_ERROR == srs_error_code(err));
        srs_freep(err);
        
        err = m.write_audio(0, (char*)"\xaf\x00\x12\x10", 4);
        EXPECT_TRUE(srs_success == err);
        srs_freep(err);
        
        EXPECT_TRUE(m.got_sequence_header);
        EXPECT_EQ(44100, srs_aac_srates[m.aac_sample_rate]);
        EXPECT_EQ(2, m.aac_channels);
        
        f.error_offset = 7;
        
        err = m.write_audio(0, (char*)"\xaf\x01\x00", 3);
        EXPECT_TRUE(srs_success != err);
        srs_freep(err);
    }
    
    if (true) {
        SrsAacTransmuxer m;
        MockSrsFileWriter f;
        EXPECT_TRUE(srs_success == m.initialize(&f));
        
        srs_error_t err = m.write_audio(0, (char*)"\xaf\x00", 2);
        EXPECT_TRUE(ERROR_AAC_DECODE_ERROR == srs_error_code(err));
        srs_freep(err);
        
        err = m.write_audio(0, (char*)"\xaf\x00\x12\x10", 4);
        EXPECT_TRUE(srs_success == err);
        srs_freep(err);
        
        EXPECT_TRUE(m.got_sequence_header);
        EXPECT_EQ(44100, srs_aac_srates[m.aac_sample_rate]);
        EXPECT_EQ(2, m.aac_channels);
        
        f.error_offset = 8;
        
        err = m.write_audio(0, (char*)"\xaf\x01\x00", 3);
        EXPECT_TRUE(srs_success != err);
        srs_freep(err);
    }
}

VOID TEST(KernelLBRRTest, CoverAll)
{
    if (true) {
        SrsLbRoundRobin lb;
        EXPECT_EQ(0, (int)lb.count);
        EXPECT_EQ(-1, lb.index);
        EXPECT_EQ(-1, (int)lb.current());
        EXPECT_TRUE("" == lb.selected());
    }
    
    if (true) {
        vector<string> servers;
        servers.push_back("s0");
        servers.push_back("s1");
        servers.push_back("s2");
        
        SrsLbRoundRobin lb;
        lb.select(servers);
        EXPECT_EQ(0, (int)lb.current());
        EXPECT_TRUE("s0" == lb.selected());
        
        lb.select(servers);
        EXPECT_EQ(1, (int)lb.current());
        EXPECT_TRUE("s1" == lb.selected());
        
        lb.select(servers);
        EXPECT_EQ(2, (int)lb.current());
        EXPECT_TRUE("s2" == lb.selected());
        
        lb.select(servers);
        EXPECT_EQ(0, (int)lb.current());
        EXPECT_TRUE("s0" == lb.selected());
    }
}

VOID TEST(KernelCodecTest, CoverAll)
{
    if (true) {
        EXPECT_TRUE("H264" == srs_video_codec_id2str(SrsVideoCodecIdAVC));
        EXPECT_TRUE("VP6" == srs_video_codec_id2str(SrsVideoCodecIdOn2VP6));
        EXPECT_TRUE("HEVC" == srs_video_codec_id2str(SrsVideoCodecIdHEVC));
        EXPECT_TRUE("Other" == srs_video_codec_id2str(SrsVideoCodecIdScreenVideo));
    }
    
    if (true) {
        EXPECT_TRUE("AAC" == srs_audio_codec_id2str(SrsAudioCodecIdAAC));
        EXPECT_TRUE("MP3" == srs_audio_codec_id2str(SrsAudioCodecIdMP3));
        EXPECT_TRUE("Opus" == srs_audio_codec_id2str(SrsAudioCodecIdOpus));
        EXPECT_TRUE("Other" == srs_audio_codec_id2str(SrsAudioCodecIdSpeex));
    }
    
    if (true) {
        EXPECT_TRUE("5512" == srs_audio_sample_rate2str(SrsAudioSampleRate5512));
        EXPECT_TRUE("11025" == srs_audio_sample_rate2str(SrsAudioSampleRate11025));
        EXPECT_TRUE("22050" == srs_audio_sample_rate2str(SrsAudioSampleRate22050));
        EXPECT_TRUE("44100" == srs_audio_sample_rate2str(SrsAudioSampleRate44100));
        EXPECT_TRUE("NB8kHz" == srs_audio_sample_rate2str(SrsAudioSampleRateNB8kHz));
        EXPECT_TRUE("MB12kHz" == srs_audio_sample_rate2str(SrsAudioSampleRateMB12kHz));
        EXPECT_TRUE("WB16kHz" == srs_audio_sample_rate2str(SrsAudioSampleRateWB16kHz));
        EXPECT_TRUE("SWB24kHz" == srs_audio_sample_rate2str(SrsAudioSampleRateSWB24kHz));
        EXPECT_TRUE("FB48kHz" == srs_audio_sample_rate2str(SrsAudioSampleRateFB48kHz));
        EXPECT_TRUE("Other" == srs_audio_sample_rate2str(SrsAudioSampleRateForbidden));
    }
    
    if (true) {
        SrsFlvVideo v;
        EXPECT_TRUE(!v.sh((char*)"\x07", 1));
        
        EXPECT_TRUE(!v.acceptable(NULL, 0));
        EXPECT_TRUE(!v.acceptable((char*)"\x00", 1));
        EXPECT_TRUE(!v.acceptable((char*)"\xf0", 1));
        EXPECT_TRUE(!v.acceptable((char*)"\x10", 1));
        EXPECT_TRUE(!v.acceptable((char*)"\x1f", 1));
        EXPECT_TRUE(v.acceptable((char*)"\x13", 1));
    }
    
    if (true) {
        SrsFlvAudio a;
        EXPECT_TRUE(!a.sh((char*)"\xa0", 1));
    }
    
    if (true) {
        EXPECT_TRUE("16bits" == srs_audio_sample_bits2str(SrsAudioSampleBits16bit));
        EXPECT_TRUE("8bits" == srs_audio_sample_bits2str(SrsAudioSampleBits8bit));
        EXPECT_TRUE("Other" == srs_audio_sample_bits2str(SrsAudioSampleBitsForbidden));
    }
    
    if (true) {
        EXPECT_TRUE("Stereo" == srs_audio_channels2str(SrsAudioChannelsStereo));
        EXPECT_TRUE("Mono" == srs_audio_channels2str(SrsAudioChannelsMono));
        EXPECT_TRUE("Other" == srs_audio_channels2str(SrsAudioChannelsForbidden));
    }
    
    if (true) {
        EXPECT_TRUE("NonIDR" == srs_avc_nalu2str(SrsAvcNaluTypeNonIDR));
	    EXPECT_TRUE("DataPartitionA" == srs_avc_nalu2str(SrsAvcNaluTypeDataPartitionA));
	    EXPECT_TRUE("DataPartitionB" == srs_avc_nalu2str(SrsAvcNaluTypeDataPartitionB));
	    EXPECT_TRUE("DataPartitionC" == srs_avc_nalu2str(SrsAvcNaluTypeDataPartitionC));
	    EXPECT_TRUE("IDR" == srs_avc_nalu2str(SrsAvcNaluTypeIDR));
	    EXPECT_TRUE("SEI" == srs_avc_nalu2str(SrsAvcNaluTypeSEI));
	    EXPECT_TRUE("SPS" == srs_avc_nalu2str(SrsAvcNaluTypeSPS));
	    EXPECT_TRUE("PPS" == srs_avc_nalu2str(SrsAvcNaluTypePPS));
	    EXPECT_TRUE("AccessUnitDelimiter" == srs_avc_nalu2str(SrsAvcNaluTypeAccessUnitDelimiter));
	    EXPECT_TRUE("EOSequence" == srs_avc_nalu2str(SrsAvcNaluTypeEOSequence));
	    EXPECT_TRUE("EOStream" == srs_avc_nalu2str(SrsAvcNaluTypeEOStream));
	    EXPECT_TRUE("FilterData" == srs_avc_nalu2str(SrsAvcNaluTypeFilterData));
	    EXPECT_TRUE("SPSExt" == srs_avc_nalu2str(SrsAvcNaluTypeSPSExt));
	    EXPECT_TRUE("PrefixNALU" == srs_avc_nalu2str(SrsAvcNaluTypePrefixNALU));
	    EXPECT_TRUE("SubsetSPS" == srs_avc_nalu2str(SrsAvcNaluTypeSubsetSPS));
	    EXPECT_TRUE("LayerWithoutPartition" == srs_avc_nalu2str(SrsAvcNaluTypeLayerWithoutPartition));
        EXPECT_TRUE("CodedSliceExt" == srs_avc_nalu2str(SrsAvcNaluTypeCodedSliceExt));
        EXPECT_TRUE("Other" == srs_avc_nalu2str(SrsAvcNaluTypeForbidden));
    }

    if (true) {
	    EXPECT_TRUE("Main" == srs_aac_profile2str(SrsAacProfileMain));
	    EXPECT_TRUE("LC" == srs_aac_profile2str(SrsAacProfileLC));
        EXPECT_TRUE("SSR" == srs_aac_profile2str(SrsAacProfileSSR));
        EXPECT_TRUE("Other" == srs_aac_profile2str(SrsAacProfileReserved));
    }

    if (true) {
	    EXPECT_TRUE("Main" == srs_aac_object2str(SrsAacObjectTypeAacMain));
	    EXPECT_TRUE("LC" == srs_aac_object2str(SrsAacObjectTypeAacLC));
	    EXPECT_TRUE("SSR" == srs_aac_object2str(SrsAacObjectTypeAacSSR));
	    EXPECT_TRUE("HE" == srs_aac_object2str(SrsAacObjectTypeAacHE));
        EXPECT_TRUE("HEv2" == srs_aac_object2str(SrsAacObjectTypeAacHEV2));
        EXPECT_TRUE("Other" == srs_aac_object2str(SrsAacObjectTypeForbidden));
    }

    if (true) {
        EXPECT_TRUE(SrsAacObjectTypeAacMain == srs_aac_ts2rtmp(SrsAacProfileMain));
        EXPECT_TRUE(SrsAacObjectTypeAacLC == srs_aac_ts2rtmp(SrsAacProfileLC));
        EXPECT_TRUE(SrsAacObjectTypeAacSSR == srs_aac_ts2rtmp(SrsAacProfileSSR));
        EXPECT_TRUE(SrsAacObjectTypeReserved == srs_aac_ts2rtmp(SrsAacProfileReserved));
    }

    if (true) {
        EXPECT_TRUE(SrsAacProfileMain == srs_aac_rtmp2ts(SrsAacObjectTypeAacMain));
        EXPECT_TRUE(SrsAacProfileLC == srs_aac_rtmp2ts(SrsAacObjectTypeAacHE));
        EXPECT_TRUE(SrsAacProfileLC == srs_aac_rtmp2ts(SrsAacObjectTypeAacHEV2));
        EXPECT_TRUE(SrsAacProfileLC == srs_aac_rtmp2ts(SrsAacObjectTypeAacLC));
        EXPECT_TRUE(SrsAacProfileSSR == srs_aac_rtmp2ts(SrsAacObjectTypeAacSSR));
        EXPECT_TRUE(SrsAacProfileReserved == srs_aac_rtmp2ts(SrsAacObjectTypeReserved));
    }

    if (true) {
	    EXPECT_TRUE("Baseline" == srs_avc_profile2str(SrsAvcProfileBaseline));
	    EXPECT_TRUE("Baseline(Constrained)" == srs_avc_profile2str(SrsAvcProfileConstrainedBaseline ));
	    EXPECT_TRUE("Main" == srs_avc_profile2str(SrsAvcProfileMain));
	    EXPECT_TRUE("Extended" == srs_avc_profile2str(SrsAvcProfileExtended));
	    EXPECT_TRUE("High" == srs_avc_profile2str(SrsAvcProfileHigh ));
	    EXPECT_TRUE("High(10)" == srs_avc_profile2str(SrsAvcProfileHigh10 ));
	    EXPECT_TRUE("High(10+Intra)" == srs_avc_profile2str(SrsAvcProfileHigh10Intra));
	    EXPECT_TRUE("High(422)" == srs_avc_profile2str(SrsAvcProfileHigh422 ));
	    EXPECT_TRUE("High(422+Intra)" == srs_avc_profile2str(SrsAvcProfileHigh422Intra));
	    EXPECT_TRUE("High(444)" == srs_avc_profile2str(SrsAvcProfileHigh444 ));
	    EXPECT_TRUE("High(444+Predictive)" == srs_avc_profile2str(SrsAvcProfileHigh444Predictive));
        EXPECT_TRUE("High(444+Intra)" == srs_avc_profile2str(SrsAvcProfileHigh444Intra));
        EXPECT_TRUE("Other" == srs_avc_profile2str(SrsAvcProfileReserved));
    }

    if (true) {
	    EXPECT_TRUE("1" == srs_avc_level2str(SrsAvcLevel_1));
	    EXPECT_TRUE("1.1" == srs_avc_level2str(SrsAvcLevel_11));
	    EXPECT_TRUE("1.2" == srs_avc_level2str(SrsAvcLevel_12));
	    EXPECT_TRUE("1.3" == srs_avc_level2str(SrsAvcLevel_13));
	    EXPECT_TRUE("2" == srs_avc_level2str(SrsAvcLevel_2));
	    EXPECT_TRUE("2.1" == srs_avc_level2str(SrsAvcLevel_21));
	    EXPECT_TRUE("2.2" == srs_avc_level2str(SrsAvcLevel_22));
	    EXPECT_TRUE("3" == srs_avc_level2str(SrsAvcLevel_3));
	    EXPECT_TRUE("3.1" == srs_avc_level2str(SrsAvcLevel_31));
	    EXPECT_TRUE("3.2" == srs_avc_level2str(SrsAvcLevel_32));
	    EXPECT_TRUE("4" == srs_avc_level2str(SrsAvcLevel_4));
	    EXPECT_TRUE("4.1" == srs_avc_level2str(SrsAvcLevel_41));
	    EXPECT_TRUE("5" == srs_avc_level2str(SrsAvcLevel_5));
        EXPECT_TRUE("5.1" == srs_avc_level2str(SrsAvcLevel_51));
        EXPECT_TRUE("Other" == srs_avc_level2str(SrsAvcLevelReserved));
    }

    if (true) {
        SrsAudioCodecConfig acc;
        EXPECT_TRUE(!acc.is_aac_codec_ok());
        
        acc.aac_extra_data.push_back('\xff');
        EXPECT_TRUE(acc.is_aac_codec_ok());

        SrsVideoCodecConfig vcc;
        EXPECT_TRUE(!vcc.is_avc_codec_ok());

        vcc.avc_extra_data.push_back('\xff');
        EXPECT_TRUE(vcc.is_avc_codec_ok());
    }
}

VOID TEST(KernelCodecTest, AVFrame)
{
	if (true) {
		SrsAudioFrame f;
        SrsAudioCodecConfig cc;
        EXPECT_TRUE(srs_success == f.initialize(&cc));
        EXPECT_TRUE(f.acodec() != NULL);
        
        EXPECT_TRUE(srs_success == f.add_sample((char*)1, 10));
        EXPECT_TRUE((char*)1 == f.samples[0].bytes);
        EXPECT_TRUE(10 == f.samples[0].size);
        EXPECT_TRUE(1 == f.nb_samples);
        
        EXPECT_TRUE(srs_success == f.add_sample((char*)2, 20));
        EXPECT_TRUE((char*)2 == f.samples[1].bytes);
        EXPECT_TRUE(20 == f.samples[1].size);
        EXPECT_TRUE(2 == f.nb_samples);
	}
    
    if (true) {
        SrsAudioFrame f;
        for (int i = 0; i < SrsMaxNbSamples; i++) {
            EXPECT_TRUE(srs_success == f.add_sample((char*)(int64_t)i, i*10));
        }
        
        srs_error_t err = f.add_sample((char*)1, 1);
        EXPECT_TRUE(srs_success != err);
        srs_freep(err);
    }
    
    if (true) {
        SrsVideoFrame f;
        SrsVideoCodecConfig cc;
        EXPECT_TRUE(srs_success == f.initialize(&cc));
        EXPECT_TRUE(f.vcodec() != NULL);
        
        EXPECT_TRUE(srs_success == f.add_sample((char*)"\x05", 1));
        EXPECT_TRUE(f.has_idr == true);
        EXPECT_TRUE(f.first_nalu_type == SrsAvcNaluTypeIDR);
    }
    
    if (true) {
        SrsVideoFrame f;
        SrsVideoCodecConfig cc;
        EXPECT_TRUE(srs_success == f.initialize(&cc));
        EXPECT_TRUE(f.vcodec() != NULL);
        
        EXPECT_TRUE(srs_success == f.add_sample((char*)"\x07", 1));
        EXPECT_TRUE(f.has_sps_pps == true);
    }
    
    if (true) {
        SrsVideoFrame f;
        SrsVideoCodecConfig cc;
        EXPECT_TRUE(srs_success == f.initialize(&cc));
        EXPECT_TRUE(f.vcodec() != NULL);
        
        EXPECT_TRUE(srs_success == f.add_sample((char*)"\x08", 1));
        EXPECT_TRUE(f.has_sps_pps == true);
    }
    
    if (true) {
        SrsVideoFrame f;
        SrsVideoCodecConfig cc;
        EXPECT_TRUE(srs_success == f.initialize(&cc));
        EXPECT_TRUE(f.vcodec() != NULL);
        
        EXPECT_TRUE(srs_success == f.add_sample((char*)"\x09", 1));
        EXPECT_TRUE(f.has_aud == true);
    }
    
    if (true) {
        SrsVideoFrame f;
        for (int i = 0; i < SrsMaxNbSamples; i++) {
            EXPECT_TRUE(srs_success == f.add_sample((char*)"\x05", 1));
        }
        
        srs_error_t err = f.add_sample((char*)"\x05", 1);
        EXPECT_TRUE(srs_success != err);
        srs_freep(err);
    }
}

VOID TEST(KernelCodecTest, AudioFormat)
{
    if (true) {
        SrsFormat f;
        EXPECT_TRUE(srs_success == f.initialize());
        
        EXPECT_TRUE(srs_success == f.on_audio(0, NULL, 0));
        EXPECT_TRUE(srs_success == f.on_audio(0, (char*)"\x00", 0));
        EXPECT_TRUE(srs_success == f.on_audio(0, (char*)"\x00", 1));
    }
    
    if (true) {
        SrsFormat f;
        EXPECT_TRUE(srs_success == f.initialize());
        EXPECT_TRUE(srs_success == f.on_audio(0, (char*)"\x20\x00", 2));
        EXPECT_TRUE(1 == f.nb_raw);
        EXPECT_TRUE(0 == f.audio->nb_samples);
        
        EXPECT_TRUE(srs_success == f.on_audio(0, (char*)"\x20\x00\x00", 3));
        EXPECT_TRUE(2 == f.nb_raw);
        EXPECT_TRUE(1 == f.audio->nb_samples);
    }
    
    if (true) {
        SrsFormat f;
        EXPECT_TRUE(srs_success == f.initialize());
        EXPECT_TRUE(srs_success == f.on_audio(0, (char*)"\xaf\x00\x12\x10", 4));
        EXPECT_EQ(SrsAudioAacFrameTraitSequenceHeader, f.audio->aac_packet_type);
        EXPECT_EQ(2, f.acodec->aac_channels);
        EXPECT_EQ(4, f.acodec->aac_sample_rate);
        EXPECT_EQ(2, f.acodec->aac_object);
        
        EXPECT_EQ(SrsAudioChannelsStereo, f.acodec->sound_type);
        EXPECT_EQ(SrsAudioSampleRate44100, f.acodec->sound_rate);
        EXPECT_EQ(SrsAudioSampleBits16bit, f.acodec->sound_size);
        
        EXPECT_TRUE(srs_success == f.on_audio(0, (char*)"\xaf\x01\x00", 3));
        EXPECT_EQ(SrsAudioAacFrameTraitRawData, f.audio->aac_packet_type);
        EXPECT_EQ(1, f.audio->nb_samples);
    }
    
    if (true) {
        SrsFormat f;
        EXPECT_TRUE(srs_success == f.initialize());
        EXPECT_TRUE(srs_success == f.on_audio(0, (char*)"\xaf\x00\x13\x90", 4));
        EXPECT_EQ(SrsAudioAacFrameTraitSequenceHeader, f.audio->aac_packet_type);
        EXPECT_EQ(7, f.acodec->aac_sample_rate);
    }
    
    if (true) {
        SrsFormat f;
        EXPECT_TRUE(srs_success == f.initialize());
        EXPECT_TRUE(srs_success == f.on_audio(0, (char*)"\xaf\x00\x15\x10", 4));
        EXPECT_EQ(SrsAudioAacFrameTraitSequenceHeader, f.audio->aac_packet_type);
        EXPECT_EQ(10, f.acodec->aac_sample_rate);
    }
    
    if (true) {
        SrsFormat f;
        EXPECT_TRUE(srs_success == f.initialize());
        EXPECT_TRUE(srs_success == f.on_audio(0, (char*)"\xaf\x01\x00", 3));
    }
    
    if (true) {
        SrsFormat f;
        EXPECT_TRUE(srs_success == f.on_audio(0, (char*)"\xaf\x00\x12\x10", 4));
        
        SrsBuffer b((char*)"\x20", 1);
        srs_error_t err = f.audio_aac_demux(&b, 0);
        EXPECT_TRUE(srs_success != err);
        srs_freep(err);
    }
    
    if (true) {
        SrsFormat f;
        EXPECT_TRUE(srs_success == f.on_audio(0, (char*)"\xaf\x00\x12\x10", 4));
        
        SrsBuffer b((char*)"\x30", 1);
        srs_error_t err = f.audio_aac_demux(&b, 0);
        EXPECT_TRUE(srs_success != err);
        srs_freep(err);
    }
    
    if (true) {
        SrsFormat f;
        srs_error_t err = f.on_audio(0, (char*)"\xaf\x00\x12", 3);
        EXPECT_TRUE(srs_success != err);
        srs_freep(err);
    }
    
    if (true) {
        SrsFormat f;
        srs_error_t err = f.on_audio(0, (char*)"\xaf\x00\x02\x00", 4);
        EXPECT_TRUE(srs_success != err);
        srs_freep(err);
    }
    
    if (true) {
        SrsFormat f;
        EXPECT_TRUE(srs_success == f.on_aac_sequence_header((char*)"\x12\x10", 2));
        EXPECT_EQ(2, f.acodec->aac_channels);
        EXPECT_EQ(4, f.acodec->aac_sample_rate);
        EXPECT_EQ(2, f.acodec->aac_object);
    }
        
    if (true) {
        SrsFormat f;
        EXPECT_TRUE(srs_success == f.initialize());
        EXPECT_TRUE(srs_success == f.on_audio(0, (char*)"\xaf\x00\x12\x10", 4));
        EXPECT_EQ(SrsAudioAacFrameTraitSequenceHeader, f.audio->aac_packet_type);
        EXPECT_TRUE(f.is_aac_sequence_header());
        EXPECT_TRUE(!f.is_avc_sequence_header());
    }
}

VOID TEST(KernelCodecTest, VideoFormat)
{
    if (true) {
        SrsFormat f;
        EXPECT_TRUE(srs_success == f.initialize());
        
        EXPECT_TRUE(srs_success == f.on_video(0, NULL, 0));
        EXPECT_TRUE(srs_success == f.on_video(0, (char*)"\x00", 0));
        EXPECT_TRUE(srs_success == f.on_video(0, (char*)"\x00", 1));
    }
    
    if (true) {
        SrsFormat f;
        EXPECT_TRUE(srs_success == f.initialize());
        
        EXPECT_TRUE(srs_success == f.on_video(0, (char*)"\x57", 1));
        
        SrsBuffer b((char*)"\x00", 1);
        srs_error_t err = f.video_avc_demux(&b, 0);
        EXPECT_TRUE(srs_success != err);
        srs_freep(err);
    }
    
    uint8_t spspps[] = {
        0x17,
        0x00, 0x00, 0x00, 0x00, 0x01, 0x64, 0x00, 0x20, 0xff, 0xe1, 0x00, 0x19, 0x67, 0x64, 0x00, 0x20,
        0xac, 0xd9, 0x40, 0xc0, 0x29, 0xb0, 0x11, 0x00, 0x00, 0x03, 0x00, 0x01, 0x00, 0x00, 0x03, 0x00,
        0x32, 0x0f, 0x18, 0x31, 0x96, 0x01, 0x00, 0x05, 0x68, 0xeb, 0xec, 0xb2, 0x2c
    };
    uint8_t rawIBMF[] = {
        0x27,
        0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x35, 0x01, 0x9e, 0x82, 0x74, 0x43, 0xdf, 0x00, 0x16,
        0x02, 0x5b, 0x65, 0xa4, 0xbd, 0x42, 0x77, 0xfc, 0x23, 0x61, 0x5e, 0xc2, 0xc9, 0xe9, 0xf8, 0x50,
        0xd9, 0xaf, 0xc7, 0x49, 0xdc, 0xb6, 0x3a, 0xd4, 0xb5, 0x80, 0x02, 0x04, 0xac, 0xe7, 0x97, 0xc1,
        0xbf, 0xea, 0xf0, 0x13, 0x36, 0xd2, 0xa4, 0x0b, 0x6a, 0xc4, 0x32, 0x22, 0xe1
    };
    uint8_t rawAnnexb[] = {
        0x27,
        0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x9e, 0x82, 0x74, 0x43, 0xdf, 0x00, 0x16,
        0x02, 0x5b, 0x65, 0xa4, 0xbd, 0x42, 0x77, 0xfc, 0x23, 0x61, 0x5e, 0xc2, 0xc9, 0xe9, 0xf8, 0x50,
        0xd9, 0xaf, 0xc7, 0x49, 0xdc, 0xb6, 0x3a, 0xd4, 0xb5, 0x80, 0x02, 0x04, 0xac, 0xe7, 0x97, 0xc1,
        0xbf, 0xea, 0xf0, 0x13, 0x36, 0xd2, 0xa4, 0x0b, 0x6a, 0xc4, 0x32, 0x22, 0xe1
    };
    if (true) {
        SrsFormat f;
        EXPECT_TRUE(srs_success == f.initialize());
        
        EXPECT_TRUE(srs_success == f.on_video(0, (char*)spspps, sizeof(spspps)));
        EXPECT_EQ(1, f.video->frame_type);
        EXPECT_EQ(0, f.video->avc_packet_type);
        
        EXPECT_EQ(768, f.vcodec->width);
        EXPECT_EQ(320, f.vcodec->height);
        
        EXPECT_TRUE(srs_success == f.on_video(0, (char*)rawIBMF, sizeof(rawIBMF)));
        EXPECT_EQ(1, f.video->nb_samples);
        
        EXPECT_TRUE(srs_success == f.on_video(0, (char*)rawIBMF, sizeof(rawIBMF)));
        EXPECT_EQ(1, f.video->nb_samples);
    }
    
    if (true) {
        SrsFormat f;
        EXPECT_TRUE(srs_success == f.initialize());
        
        EXPECT_TRUE(srs_success == f.on_video(0, (char*)spspps, sizeof(spspps)));
        EXPECT_EQ(1, f.video->frame_type);
        EXPECT_EQ(0, f.video->avc_packet_type);
        
        EXPECT_TRUE(srs_success == f.on_video(0, (char*)rawAnnexb, sizeof(rawAnnexb)));
        EXPECT_EQ(1, f.video->nb_samples);
        
        EXPECT_TRUE(srs_success == f.on_video(0, (char*)rawAnnexb, sizeof(rawAnnexb)));
        EXPECT_EQ(1, f.video->nb_samples);
        
        f.vcodec->payload_format = SrsAvcPayloadFormatAnnexb;
        EXPECT_TRUE(srs_success == f.on_video(0, (char*)rawAnnexb, sizeof(rawAnnexb)));
        EXPECT_EQ(1, f.video->nb_samples);
    }
    
    if (true) {
        SrsFormat f;
        EXPECT_TRUE(srs_success == f.initialize());
        
        EXPECT_TRUE(srs_success == f.on_video(0, (char*)spspps, sizeof(spspps)));
        EXPECT_EQ(1, f.video->frame_type);
        EXPECT_EQ(0, f.video->avc_packet_type);
        
        f.vcodec->payload_format = SrsAvcPayloadFormatAnnexb;
        
        EXPECT_TRUE(srs_success == f.on_video(0, (char*)rawIBMF, sizeof(rawIBMF)));
        EXPECT_EQ(1, f.video->nb_samples);
        
        // If IBMF format parsed, we couldn't parse annexb anymore.
        // Maybe FFMPEG use annexb format for some packets, then switch to IBMF.
        srs_error_t err = f.on_video(0, (char*)rawAnnexb, sizeof(rawAnnexb));
        EXPECT_TRUE(srs_success != err);
        srs_freep(err);
        
        EXPECT_TRUE(srs_success == f.on_video(0, (char*)rawIBMF, sizeof(rawIBMF)));
        EXPECT_EQ(1, f.video->nb_samples);
    }
}

VOID TEST(KernelFileTest, FileWriteReader)
{
    if (true) {
        SrsFileWriter f;
        EXPECT_TRUE(!f.is_open());
    }
    
    if (true) {
        SrsFileWriter f;
        EXPECT_TRUE(srs_success == f.open("/dev/null"));
        EXPECT_TRUE(f.is_open());
        
        EXPECT_EQ(0, f.tellg());
        
        ssize_t nwriten = 0;
        EXPECT_TRUE(srs_success == f.write((void*)"Hello", 5, &nwriten));
        EXPECT_EQ(5, nwriten);
        
        EXPECT_TRUE(srs_success == f.lseek(0, SEEK_CUR, NULL));
        
        f.seek2(0);
        EXPECT_EQ(0, f.tellg());
    }
    
    if (true) {
        SrsFileWriter f;
        EXPECT_TRUE(srs_success == f.open_append("/dev/null"));
        EXPECT_TRUE(f.is_open());
    }
    
    if (true) {
        SrsFileReader f;
        EXPECT_TRUE(!f.is_open());
    }
    
    if (true) {
        SrsFileReader f;
        EXPECT_TRUE(srs_success == f.open("/dev/null"));
        EXPECT_TRUE(f.is_open());
        EXPECT_EQ(0, f.tellg());
        EXPECT_EQ(0, f.filesize());
        
        f.skip(1);
        
        f.seek2(0);
        EXPECT_EQ(0, f.tellg());
    }
    
    if (true) {
        SrsFileReader f;
        EXPECT_TRUE(srs_success == f.open("/dev/null"));
        
        char buf[16];
        ssize_t nread = 0;
        srs_error_t err = f.read((void*)buf, sizeof(buf), &nread);
        EXPECT_EQ(ERROR_SYSTEM_FILE_EOF, srs_error_code(err));
        srs_freep(err);
        
        f.lseek(1, SEEK_CUR, NULL);
    }
}

// Mock the system call hooks.
extern _srs_open_t _srs_open_fn;
extern _srs_write_t _srs_write_fn;
extern _srs_read_t _srs_read_fn;
extern _srs_lseek_t _srs_lseek_fn;

int mock_open(const char* /*path*/, int /*oflag*/, ...) {
	return -1;
}

ssize_t mock_write(int /*fildes*/, const void* /*buf*/, size_t /*nbyte*/) {
	return -1;
}

ssize_t mock_read(int /*fildes*/, void* /*buf*/, size_t /*nbyte*/) {
	return -1;
}

off_t mock_lseek(int /*fildes*/, off_t /*offset*/, int /*whence*/) {
	return -1;
}

class MockSystemIO
{
private:
	_srs_open_t oo;
	_srs_write_t ow;
	_srs_read_t _or;
	_srs_lseek_t os;
public:
	MockSystemIO(_srs_open_t o = NULL, _srs_write_t w = NULL, _srs_read_t r = NULL, _srs_lseek_t s = NULL) {
		oo = _srs_open_fn;
		ow = _srs_write_fn;
		os = _srs_lseek_fn;
		_or = _srs_read_fn;
		if (o) {
			_srs_open_fn = o;
		}
		if (w) {
			_srs_write_fn = w;
		}
		if (r) {
			_srs_read_fn = r;
		}
		if (s) {
			_srs_lseek_fn = s;
		}
	}
	virtual ~MockSystemIO() {
		if (oo) {
			_srs_open_fn = oo;
		}
		if (ow) {
			_srs_write_fn = ow;
		}
		if (_or) {
			_srs_read_fn = _or;
		}
		if (os) {
			_srs_lseek_fn = os;
		}
	}
};

VOID TEST(KernelFileWriterTest, WriteSpecialCase)
{
	srs_error_t err;

	// Should fail when open multiple times.
	if (true) {
		SrsFileWriter f;
		HELPER_EXPECT_SUCCESS(f.open("/dev/null"));
		HELPER_EXPECT_FAILED(f.open("/dev/null"));
	}

	// Should fail when open multiple times.
	if (true) {
		SrsFileWriter f;
		HELPER_EXPECT_SUCCESS(f.open_append("/dev/null"));
		HELPER_EXPECT_FAILED(f.open_append("/dev/null"));
	}

	// Always fail.
	if (true) {
		MockSystemIO _mockio(mock_open);
		SrsFileWriter f;
		HELPER_EXPECT_FAILED(f.open("/dev/null"));
		HELPER_EXPECT_FAILED(f.open("/dev/null"));
	}
	if (true) {
		MockSystemIO _mockio(mock_open);
		SrsFileWriter f;
		HELPER_EXPECT_FAILED(f.open_append("/dev/null"));
		HELPER_EXPECT_FAILED(f.open_append("/dev/null"));
	}

	// Should ok for write, writev or lseek.
	if (true) {
		SrsFileWriter f;
		HELPER_EXPECT_SUCCESS(f.open("/dev/null"));

		ssize_t nn = 0;
		HELPER_EXPECT_SUCCESS(f.write((void*)"Hello", 5, &nn));
		EXPECT_EQ(5, nn);

		iovec iovs[3];
		iovs[0].iov_base = (void*)"H";
		iovs[0].iov_len = 1;
		iovs[1].iov_base = (void*)"e";
		iovs[1].iov_len = 1;
		iovs[2].iov_base = (void*)"llo";
		iovs[2].iov_len = 3;
		nn = 0;
		HELPER_EXPECT_SUCCESS(f.writev(iovs, 3, &nn));
		EXPECT_EQ(5, nn);

		off_t seeked = 0;
		HELPER_EXPECT_SUCCESS(f.lseek(0, SEEK_CUR, &seeked));
		EXPECT_EQ(0, seeked);
	}

	// Always fail.
	if (true) {
		MockSystemIO _mockio(NULL, mock_write);
		SrsFileWriter f;
		HELPER_EXPECT_SUCCESS(f.open("/dev/null"));

		ssize_t nn = 0;
		HELPER_EXPECT_FAILED(f.write((void*)"Hello", 5, &nn));

		iovec iovs[3];
		iovs[0].iov_base = (void*)"H";
		iovs[0].iov_len = 1;
		iovs[1].iov_base = (void*)"e";
		iovs[1].iov_len = 1;
		iovs[2].iov_base = (void*)"llo";
		iovs[2].iov_len = 3;
		HELPER_EXPECT_FAILED(f.writev(iovs, 3, NULL));
	}
	if (true) {
		MockSystemIO _mockio(NULL, NULL, NULL, mock_lseek);
		SrsFileWriter f;
		HELPER_EXPECT_SUCCESS(f.open("/dev/null"));

		HELPER_EXPECT_FAILED(f.lseek(0, 0, NULL));
	}
}

VOID TEST(KernelFileReaderTest, WriteSpecialCase)
{
	srs_error_t err;

	// Should fail when open multiple times.
	if (true) {
		SrsFileReader f;
		HELPER_EXPECT_SUCCESS(f.open("/dev/null"));
		HELPER_EXPECT_FAILED(f.open("/dev/null"));
	}

	// Always fail.
	if (true) {
		MockSystemIO _mockio(mock_open);
		SrsFileReader f;
		HELPER_EXPECT_FAILED(f.open("/dev/null"));
		HELPER_EXPECT_FAILED(f.open("/dev/null"));
	}

	// Should ok for lseek.
	if (true) {
		SrsFileWriter f;
		HELPER_EXPECT_SUCCESS(f.open("/dev/null"));

		off_t seeked = 0;
		HELPER_EXPECT_SUCCESS(f.lseek(0, SEEK_CUR, &seeked));
		EXPECT_EQ(0, seeked);
	}

	// Always fail.
	if (true) {
		MockSystemIO _mockio(NULL, NULL, mock_read);
		SrsFileReader f;
		HELPER_EXPECT_SUCCESS(f.open("/dev/null"));

		ssize_t nn = 0;
		char buf[16];
		HELPER_EXPECT_FAILED(f.read(buf, sizeof(buf), &nn));
	}
	if (true) {
		MockSystemIO _mockio(NULL, NULL, NULL, mock_lseek);
		SrsFileReader f;
		HELPER_EXPECT_SUCCESS(f.open("/dev/null"));

		HELPER_EXPECT_FAILED(f.lseek(0, 0, NULL));
	}
}

VOID TEST(KernelFLVTest, CoverAll)
{
    if (true) {
        SrsMessageHeader h;
        h.message_type = RTMP_MSG_SetChunkSize;
        EXPECT_TRUE(h.is_set_chunk_size());
        
        h.message_type = RTMP_MSG_SetPeerBandwidth;
        EXPECT_TRUE(h.is_set_peer_bandwidth());
        
        h.message_type = RTMP_MSG_AggregateMessage;
        EXPECT_TRUE(h.is_aggregate());
        
        h.initialize_amf0_script(10, 20);
        EXPECT_EQ(RTMP_MSG_AMF0DataMessage, h.message_type);
        EXPECT_EQ(10, h.payload_length);
        EXPECT_EQ(20, h.stream_id);
        
        h.initialize_audio(10, 30, 20);
        EXPECT_EQ(RTMP_MSG_AudioMessage, h.message_type);
        EXPECT_EQ(10, h.payload_length);
        EXPECT_EQ(20, h.stream_id);
        EXPECT_EQ(30, h.timestamp_delta);
        EXPECT_EQ(30, h.timestamp);
        
        h.initialize_video(10, 30, 20);
        EXPECT_EQ(RTMP_MSG_VideoMessage, h.message_type);
        EXPECT_EQ(10, h.payload_length);
        EXPECT_EQ(20, h.stream_id);
        EXPECT_EQ(30, h.timestamp_delta);
        EXPECT_EQ(30, h.timestamp);
    }
    
    if (true) {
        SrsMessageHeader h;
        h.initialize_video(10, 30, 20);
        
        SrsCommonMessage m;
        EXPECT_TRUE(srs_success == m.create(&h, NULL, 0));
        EXPECT_EQ(RTMP_MSG_VideoMessage, m.header.message_type);
        EXPECT_EQ(10, m.header.payload_length);
        EXPECT_EQ(20, m.header.stream_id);
        EXPECT_EQ(30, m.header.timestamp_delta);
        EXPECT_EQ(30, m.header.timestamp);
        
        SrsSharedPtrMessage s;
        EXPECT_TRUE(srs_success == s.create(&m));
        EXPECT_TRUE(s.is_av());
        EXPECT_TRUE(!s.is_audio());
        EXPECT_TRUE(s.is_video());
    }
    
#ifdef SRS_PERF_FAST_FLV_ENCODER
    if (true) {
        MockSrsFileWriter f;
        SrsFlvTransmuxer mux;
        EXPECT_TRUE(srs_success == mux.initialize(&f));
        
        SrsMessageHeader h;
        h.initialize_video(10, 30, 20);
        
        SrsSharedPtrMessage m;
        EXPECT_TRUE(srs_success == m.create(&h, new char[1], 1));
        
        SrsSharedPtrMessage* msgs = &m;
        EXPECT_TRUE(srs_success == mux.write_tags(&msgs, 1));
        
        EXPECT_EQ(16, f.offset);
    }
#endif
}

VOID TEST(KernelLogTest, CoverAll)
{
    if (true) {
        ISrsLog l;
        EXPECT_TRUE(srs_success == l.initialize());
        
        l.reopen();
        l.verbose("TAG", 0, "log");
        l.info("TAG", 0, "log");
        l.trace("TAG", 0, "log");
        l.warn("TAG", 0, "log");
        l.error("TAG", 0, "log");
        
        ISrsThreadContext ctx;
        ctx.set_id(10);
        EXPECT_EQ(0, ctx.get_id());
        EXPECT_EQ(0, ctx.generate_id());
    }
}

VOID TEST(KernelMp3Test, CoverAll)
{
    if (true) {
        SrsMp3Transmuxer m;
        MockSrsFileWriter f;
        EXPECT_TRUE(srs_success == m.initialize(&f));
        
        EXPECT_TRUE(srs_success == m.write_header());
        EXPECT_EQ((char)0x49, f.data[0]);
    }
    
    if (true) {
        SrsMp3Transmuxer m;
        MockSrsFileWriter f;
        EXPECT_TRUE(srs_success == m.initialize(&f));
        
        EXPECT_TRUE(srs_success == m.write_audio(0, (char*)"\x20\x01", 2));
        EXPECT_EQ((char)0x01, f.data[0]);
    }
    
    if (true) {
        SrsMp3Transmuxer m;
        MockSrsFileWriter f;
        EXPECT_TRUE(srs_success == m.initialize(&f));
        
        srs_error_t err = m.write_audio(0, (char*)"\x30\x01", 2);
        EXPECT_TRUE(srs_success != err);
        srs_freep(err);
        
        err = m.write_audio(0, (char*)"\x20", 1);
        EXPECT_TRUE(srs_success != err);
        srs_freep(err);
    }
    
    if (true) {
        SrsMp3Transmuxer m;
        MockSrsFileWriter f;
        f.offset = -1;
        
        srs_error_t err = m.initialize(&f);
        EXPECT_TRUE(srs_success != err);
        srs_freep(err);
    }
    
    if (true) {
        SrsMp3Transmuxer m;
        MockSrsFileWriter f;
        EXPECT_TRUE(srs_success == m.initialize(&f));
        
        f.err = srs_error_new(-1, "mock file error");
        srs_error_t err = m.write_audio(0, (char*)"\x20\x01", 2);
        EXPECT_TRUE(srs_success != err);
        srs_freep(err);
    }
    
    if (true) {
        SrsMp3Transmuxer m;
        MockSrsFileWriter f;
        EXPECT_TRUE(srs_success == m.initialize(&f));
        
        f.err = srs_error_new(-1, "mock file error");
        srs_error_t err = m.write_header();
        EXPECT_TRUE(srs_success != err);
        srs_freep(err);
    }
}

VOID TEST(KernelUtilityTest, CoverBitsBufferAll)
{
    if (true) {
        SrsBuffer b(NULL, 0);
        SrsBitBuffer bb(&b);
        
        int32_t v = 0;
        srs_error_t err = srs_avc_nalu_read_uev(&bb, v);
        EXPECT_TRUE(srs_success != err);
        srs_freep(err);
    }
    
    if (true) {
        SrsBuffer b((char*)"\x00", 1);
        SrsBitBuffer bb(&b);
        
        int32_t v = 0;
        srs_error_t err = srs_avc_nalu_read_uev(&bb, v);
        EXPECT_TRUE(srs_success != err);
        srs_freep(err);
    }
    
    if (true) {
        SrsBuffer b((char*)"\x00\x00\x00\x00", 4);
        SrsBitBuffer bb(&b);
        
        int32_t v = 0;
        srs_error_t err = srs_avc_nalu_read_uev(&bb, v);
        EXPECT_TRUE(srs_success != err);
        srs_freep(err);
    }
    
    if (true) {
        SrsBuffer b(NULL, 0);
        SrsBitBuffer bb(&b);
        
        int8_t v = 0;
        srs_error_t err = srs_avc_nalu_read_bit(&bb, v);
        EXPECT_TRUE(srs_success != err);
        srs_freep(err);
    }
}

extern int64_t _srs_system_time_startup_time;
extern int64_t _srs_system_time_us_cache;
extern int av_toupper(int c);

VOID TEST(KernelUtilityTest, CoverTimeUtilityAll)
{
    _srs_system_time_us_cache = 0;
    _srs_system_time_startup_time = 0;
    EXPECT_TRUE(srs_get_system_startup_time() > 0);
    
    _srs_system_time_us_cache -= 300*1000 * 1000 + 1;
    EXPECT_TRUE(srs_update_system_time() > 0);
    
    if (true) {
        string host;
        int port = 0;
        srs_parse_hostport("[3ffe:dead:beef::1]:1935", host, port);
        EXPECT_EQ(1935, port);
        EXPECT_STREQ("3ffe:dead:beef::1", host.c_str());
    }
    
    if (true) {
        string host;
        int port = 0;
        srs_parse_hostport("domain.com", host, port);
        EXPECT_STREQ("domain.com", host.c_str());
    }
    
    if (true) {
        string ep = srs_any_address4listener();
        EXPECT_TRUE(ep == "0.0.0.0" || ep == "::");
    }
    
    if (true) {
        string host;
        int port = 0;
        srs_parse_endpoint("[3ffe:dead:beef::1]:1935", host, port);
        EXPECT_EQ(1935, port);
        EXPECT_STREQ("3ffe:dead:beef::1", host.c_str());
    }
    
    if (true) {
        string host;
        int port = 0;
        srs_parse_endpoint("domain.com:1935", host, port);
        EXPECT_EQ(1935, port);
        EXPECT_STREQ("domain.com", host.c_str());
    }
    
    if (true) {
        string host;
        int port = 0;
        srs_parse_endpoint("1935", host, port);
        EXPECT_EQ(1935, port);
        EXPECT_TRUE(host == "0.0.0.0" || host == "::");
    }
    
    if (true) {
        EXPECT_STREQ("1.00", srs_float2str(1).c_str());
        EXPECT_STREQ("on", srs_bool2switch(true).c_str());
        EXPECT_STREQ("off", srs_bool2switch(false).c_str());
    }
    
    if (true) {
        vector<string> flags;
        flags.push_back("e");
        flags.push_back("wo");
        vector<string> ss = srs_string_split("hello, world", flags);
        EXPECT_EQ(3, (int)ss.size());
        EXPECT_STREQ("h", ss.at(0).c_str());
        EXPECT_STREQ("llo, ", ss.at(1).c_str());
        EXPECT_STREQ("rld", ss.at(2).c_str());
    }
    
    if (true) {
        EXPECT_EQ('H', av_toupper('h'));
    }
    
    if (true) {
        int family = 0;
        string ip = srs_dns_resolve("localhost", family);
        EXPECT_TRUE(ip == "127.0.0.1" || ip == "::1");
    }
    
    if (true) {
        EXPECT_TRUE(srs_path_exists("."));
        EXPECT_TRUE(srs_success == srs_create_dir_recursively("."));
    }
    
    if (true) {
        char buf[16] = {0};
        EXPECT_STREQ("FE", srs_data_to_hex(buf, (const uint8_t*)"\xfe", 1));
    }
}

VOID TEST(KernelTSTest, CoverContextUtility)
{
    if (true) {
        EXPECT_STREQ("Reserved", srs_ts_stream2string(SrsTsStreamReserved).c_str());
        EXPECT_STREQ("MP3", srs_ts_stream2string(SrsTsStreamAudioMp3).c_str());
        EXPECT_STREQ("AAC", srs_ts_stream2string(SrsTsStreamAudioAAC).c_str());
        EXPECT_STREQ("AC3", srs_ts_stream2string(SrsTsStreamAudioAC3).c_str());
        EXPECT_STREQ("AudioDTS", srs_ts_stream2string(SrsTsStreamAudioDTS).c_str());
        EXPECT_STREQ("H.264", srs_ts_stream2string(SrsTsStreamVideoH264).c_str());
        EXPECT_STREQ("MP4", srs_ts_stream2string(SrsTsStreamVideoMpeg4).c_str());
        EXPECT_STREQ("MP4A", srs_ts_stream2string(SrsTsStreamAudioMpeg4).c_str());
        EXPECT_STREQ("Other", srs_ts_stream2string(SrsTsStreamForbidden).c_str());
    }
    
    if (true) {
        SrsTsContext ctx;
        SrsTsPacket p(&ctx);
        
        SrsTsChannel c;
        SrsTsMessage m(&c, &p);
        
        EXPECT_TRUE(m.fresh());
        EXPECT_TRUE(!m.is_audio());
        EXPECT_TRUE(!m.is_video());
        EXPECT_EQ(-1, m.stream_number());
        
        m.sid = SrsTsPESStreamId(0x06<<5 | 0x01);
        EXPECT_TRUE(m.is_audio());
        EXPECT_EQ(1, m.stream_number());
        
        m.sid = SrsTsPESStreamId(0x0e<<4 | 0x02);
        EXPECT_TRUE(m.is_video());
        EXPECT_EQ(2, m.stream_number());
        
        SrsTsMessage* cp = m.detach();
        EXPECT_TRUE(cp != NULL);
        srs_freep(cp);
        
        ctx.reset();
        EXPECT_FALSE(ctx.ready);
    }
    
    if (true) {
        SrsTsContext ctx;
        SrsTsPacket p(&ctx);
        
        SrsTsChannel c;
        SrsTsMessage m(&c, &p);
        
        m.PES_packet_length = 8;
        SrsBuffer b;
        
        int nb_bytes = 0;
        EXPECT_TRUE(srs_success == m.dump(&b, &nb_bytes));
        EXPECT_EQ(0, nb_bytes);
    }
    
    if (true) {
        SrsTsContext ctx;
        SrsTsPacket p(&ctx);
        
        SrsTsChannel c;
        SrsTsMessage m(&c, &p);
        
        m.PES_packet_length = 8;
        SrsBuffer b((char*)"\x00\x01\x02\x03", 4);
        
        int nb_bytes = 0;
        EXPECT_TRUE(srs_success == m.dump(&b, &nb_bytes));
        EXPECT_EQ(4, nb_bytes);
    }
    
    if (true) {
        SrsTsContext ctx;
        SrsTsPacket p(&ctx);
        
        SrsTsChannel c;
        SrsTsMessage m(&c, &p);
        
        EXPECT_TRUE(m.completed(1));
        EXPECT_TRUE(!m.completed(0));
        
        m.PES_packet_length = 8;
        SrsBuffer b((char*)"\x00\x01\x02\x03", 4);
        
        int nb_bytes = 0;
        EXPECT_TRUE(srs_success == m.dump(&b, &nb_bytes));
        EXPECT_EQ(4, nb_bytes);
        
        b.skip(-4);
        EXPECT_TRUE(srs_success == m.dump(&b, &nb_bytes));
        EXPECT_EQ(4, nb_bytes);
        
        EXPECT_TRUE(m.completed(0));
    }
    
    if (true) {
        SrsTsMessage m;
        
        EXPECT_TRUE(m.completed(1));
        EXPECT_TRUE(!m.completed(0));
        
        m.PES_packet_length = 8;
        SrsBuffer b((char*)"\x00\x01\x02\x03", 4);
        
        int nb_bytes = 0;
        EXPECT_TRUE(srs_success == m.dump(&b, &nb_bytes));
        EXPECT_EQ(4, nb_bytes);
        
        b.skip(-4);
        EXPECT_TRUE(srs_success == m.dump(&b, &nb_bytes));
        EXPECT_EQ(4, nb_bytes);
        
        EXPECT_TRUE(m.completed(0));
    }
    
    if (true) {
        MockTsHandler* h = new MockTsHandler();
        srs_freep(h);
        
        SrsTsContext ctx;
        EXPECT_TRUE(!ctx.is_pure_audio());
        
        ctx.set(100, SrsTsPidApplyPAT);
        ctx.set(101, SrsTsPidApplyPMT);
        ctx.set(102, SrsTsPidApplyVideo);
        ctx.set(102, SrsTsPidApplyVideo);
        
        ctx.on_pmt_parsed();
        EXPECT_TRUE(!ctx.is_pure_audio());
        
        EXPECT_EQ(100, ctx.get(100)->pid);
    }
    
    if (true) {
        MockTsHandler* h = new MockTsHandler();
        srs_freep(h);
        
        SrsTsContext ctx;
        EXPECT_TRUE(!ctx.is_pure_audio());
        
        ctx.set(100, SrsTsPidApplyPAT);
        ctx.set(101, SrsTsPidApplyPMT);
        ctx.set(102, SrsTsPidApplyAudio);
        
        ctx.on_pmt_parsed();
        EXPECT_TRUE(ctx.is_pure_audio());
        
        EXPECT_EQ(100, ctx.get(100)->pid);
        EXPECT_TRUE(NULL == ctx.get(200));
    }
    
    if (true) {
        SrsTsContext ctx;
        EXPECT_EQ(0x47, ctx.sync_byte);
        
        ctx.set_sync_byte(0x01);
        EXPECT_EQ(0x01, ctx.sync_byte);
    }
}

VOID TEST(KernelTSTest, CoverContextEncode)
{
    SrsTsContext ctx;
    MockTsHandler h;
    
    if (true) {
        SrsBuffer b;
        EXPECT_TRUE(srs_success == ctx.decode(&b, &h));
        EXPECT_TRUE(NULL == h.msg);
    }
    
    if (true) {
        SrsBuffer b((char*)"\x00", 1);
        
        srs_error_t err = ctx.decode(&b, &h);
        EXPECT_TRUE(srs_success != err);
        srs_freep(err);
    }
    
    if (true) {
        SrsBuffer b((char*)"\x00\x00\x00\x00", 4);
        
        srs_error_t err = ctx.decode(&b, &h);
        EXPECT_TRUE(srs_success != err);
        srs_freep(err);
    }
    
    if (true) {
        MockSrsFileWriter f;
        SrsTsMessage m;
        
        srs_error_t err = ctx.encode(&f, &m, SrsVideoCodecIdDisabled, SrsAudioCodecIdDisabled);
        EXPECT_TRUE(srs_success != err);
        srs_freep(err);
        
        err = ctx.encode(&f, &m, SrsVideoCodecIdHEVC, SrsAudioCodecIdOpus);
        EXPECT_TRUE(srs_success != err);
        srs_freep(err);
        
        err = ctx.encode_pat_pmt(&f, 0, SrsTsStreamReserved, 0, SrsTsStreamReserved);
        EXPECT_TRUE(srs_success != err);
        srs_freep(err);
    }
    
    if (true) {
        MockSrsFileWriter f;
        SrsTsMessage m;
        
        srs_error_t err = ctx.encode_pes(&f, &m, 0x200, SrsTsStreamVideoH264, false);
        EXPECT_TRUE(srs_success != err);
        srs_freep(err);
        
        EXPECT_TRUE(srs_success == ctx.encode_pat_pmt(&f, 200, SrsTsStreamVideoH264, 201, SrsTsStreamAudioAAC));
    }
    
    if (true) {
        MockSrsFileWriter f;
        SrsTsMessage m;
        
        EXPECT_TRUE(srs_success == ctx.encode(&f, &m, SrsVideoCodecIdAVC, SrsAudioCodecIdAAC));
        
        m.payload->append("Hello, world!", 13);
        EXPECT_TRUE(srs_success == ctx.encode(&f, &m, SrsVideoCodecIdAVC, SrsAudioCodecIdAAC));
    }
}

VOID TEST(KernelTSTest, CoverContextDecode)
{
    SrsTsContext ctx;
    MockTsHandler h;

    if (true) {
        uint8_t raw[] = {
			0x47, 0x40, 0x11, 0x10, 0x00, 0x42, 0xf0, 0x25, 0x00, 0x01, 0xc1, 0x00, 0x00, 0xff, 0x01, 0xff,
			0x00, 0x01, 0xfc, 0x80, 0x14, 0x48, 0x12, 0x01, 0x06, 0x46, 0x46, 0x6d, 0x70, 0x65, 0x67, 0x09,
			0x53, 0x65, 0x72, 0x76, 0x69, 0x63, 0x65, 0x30, 0x31, 0x77, 0x7c, 0x43, 0xca, 0xff, 0xff, 0xff
        };
        SrsBuffer b((char*)raw, sizeof(raw));
        EXPECT_TRUE(srs_success == ctx.decode(&b, &h));
    }

    if (true) {
        uint8_t raw[] = {
			0x47, 0x40, 0x00, 0x10, 0x00, 0x00, 0xb0, 0x0d, 0x00, 0x01, 0xc1, 0x00, 0x00, 0x00, 0x01, 0xf0,
            0x00, 0x2a, 0xb1, 0x04, 0xb2, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
        };
        SrsBuffer b((char*)raw, sizeof(raw));
        EXPECT_TRUE(srs_success == ctx.decode(&b, &h));
    }

    if (true) {
        uint8_t raw[] = {
			0x47, 0x50, 0x00, 0x10, 0x00, 0x02, 0xb0, 0x17, 0x00, 0x01, 0xc1, 0x00, 0x00, 0xe1, 0x00, 0xf0,
            0x00, 0x1b, 0xe1, 0x00, 0xf0, 0x00, 0x0f, 0xe1, 0x01, 0xf0, 0x00, 0x2f, 0x44, 0xb9, 0x9b, 0xff
        };
        SrsBuffer b((char*)raw, sizeof(raw));
        EXPECT_TRUE(srs_success == ctx.decode(&b, &h));
    }

    if (true) {
        uint8_t raw[] = {
			0x47, 0x41, 0x00, 0x30, 0x07, 0x50, 0x00, 0x00, 0x7b, 0x0c, 0x7e, 0x00, 0x00, 0x00, 0x01, 0xe0,
            0x00, 0x00, 0x80, 0xc0, 0x0a, 0x31, 0x00, 0x09, 0x10, 0xa1, 0x11, 0x00, 0x07, 0xd8, 0x61, 0x00,
            0x00, 0x00, 0x01, 0x09, 0xf0, 0x00, 0x00, 0x00, 0x01, 0x06, 0x05, 0xff, 0xff, 0xac, 0xdc, 0x45,
            0xe9, 0xbd, 0xe6, 0xd9, 0x48, 0xb7, 0x96, 0x2c, 0xd8, 0x20, 0xd9, 0x23, 0xee, 0xef, 0x78, 0x32,
            0x36, 0x34, 0x20, 0x2d, 0x20, 0x63, 0x6f, 0x72, 0x65, 0x20, 0x31, 0x33, 0x38, 0x20, 0x2d, 0x20,
            0x48, 0x2e, 0x32, 0x36, 0x34, 0x2f, 0x4d, 0x50, 0x45, 0x47, 0x2d, 0x34, 0x20, 0x41, 0x56, 0x43,
            0x20, 0x63, 0x6f, 0x64, 0x65, 0x63, 0x20, 0x2d, 0x20, 0x43, 0x6f, 0x70, 0x79, 0x6c, 0x65, 0x66,
            0x74, 0x20, 0x32, 0x30, 0x30, 0x33, 0x2d, 0x32, 0x30, 0x31, 0x33, 0x20, 0x2d, 0x20, 0x68, 0x74,
            0x74, 0x70, 0x3a, 0x2f, 0x2f, 0x77, 0x77, 0x77, 0x2e, 0x76, 0x69, 0x64, 0x65, 0x6f, 0x6c, 0x61,
            0x6e, 0x2e, 0x6f, 0x72, 0x67, 0x2f, 0x78, 0x32, 0x36, 0x34, 0x2e, 0x68, 0x74, 0x6d, 0x6c, 0x20,
            0x2d, 0x20, 0x6f, 0x70, 0x74, 0x69, 0x6f, 0x6e, 0x73, 0x3a, 0x20, 0x63, 0x61, 0x62, 0x61, 0x63,
            0x3d, 0x31, 0x20, 0x72, 0x65, 0x66, 0x3d, 0x33, 0x20, 0x64, 0x65, 0x62
        };
        SrsBuffer b((char*)raw, sizeof(raw));
        EXPECT_TRUE(srs_success == ctx.decode(&b, &h));
    }
}

VOID TEST(KernelTSTest, CoverTransmuxer)
{
    SrsTsTransmuxer m;
    MockSrsFileWriter f;
    EXPECT_TRUE(srs_success == m.initialize(&f));
    
    if (true) {
        uint8_t raw[] = {
            0x17,
            0x00, 0x00, 0x00, 0x00, 0x01, 0x64, 0x00, 0x20, 0xff, 0xe1, 0x00, 0x19, 0x67, 0x64, 0x00, 0x20,
            0xac, 0xd9, 0x40, 0xc0, 0x29, 0xb0, 0x11, 0x00, 0x00, 0x03, 0x00, 0x01, 0x00, 0x00, 0x03, 0x00,
            0x32, 0x0f, 0x18, 0x31, 0x96, 0x01, 0x00, 0x05, 0x68, 0xeb, 0xec, 0xb2, 0x2c
        };
        EXPECT_TRUE(srs_success == m.write_video(0, (char*)raw, sizeof(raw)));
    }
    
    if (true) {
        uint8_t raw[] = {
            0xaf, 0x00, 0x12, 0x10
        };
        EXPECT_TRUE(srs_success == m.write_audio(0, (char*)raw, sizeof(raw)));
    }
    
    if (true) {
        uint8_t raw[] = {
            0xaf,
            0x01, 0x21, 0x11, 0x45, 0x00, 0x14, 0x50, 0x01, 0x46, 0xf3, 0xf1, 0x0a, 0x5a, 0x5a, 0x5a, 0x5a,
            0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a,
            0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a,
            0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a,
            0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a,
            0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5e
        };
        EXPECT_TRUE(srs_success == m.write_audio(34, (char*)raw, sizeof(raw)));
    }

    if (true) {
        uint8_t raw[] = {
            0x27,
            0x01, 0x00, 0x00, 0x50, 0x00, 0x00, 0x00, 0x7b, 0x41, 0x9a, 0x21, 0x6c, 0x42, 0x1f, 0x00, 0x00,
            0xf1, 0x68, 0x1a, 0x35, 0x84, 0xb3, 0xee, 0xe0, 0x61, 0xba, 0x4e, 0xa8, 0x52, 0x48, 0x50, 0x59,
            0x75, 0x42, 0xd9, 0x96, 0x4a, 0x51, 0x38, 0x2c, 0x63, 0x5e, 0x41, 0xc9, 0x70, 0x60, 0x9d, 0x13,
            0x53, 0xc2, 0xa8, 0xf5, 0x45, 0x86, 0xc5, 0x3e, 0x28, 0x1a, 0x69, 0x5f, 0x71, 0x1e, 0x51, 0x74,
            0x0e, 0x31, 0x47, 0x3c, 0xd3, 0xd2, 0x10, 0x25, 0x45, 0xc5, 0xb7, 0x31, 0xec, 0x7f, 0xd8, 0x02,
            0xae, 0xa4, 0x77, 0x6d, 0xcb, 0xc6, 0x1e, 0x2f, 0xa2, 0xd1, 0x12, 0x08, 0x34, 0x52, 0xea, 0xe8,
            0x0b, 0x4f, 0x81, 0x21, 0x4f, 0x71, 0x3f, 0xf2, 0xad, 0x02, 0x58, 0xdf, 0x9e, 0x31, 0x86, 0x9b,
            0x1b, 0x41, 0xbf, 0x2a, 0x09, 0x00, 0x43, 0x5c, 0xa1, 0x7e, 0x76, 0x59, 0xef, 0xa6, 0xfc, 0x82,
            0xb2, 0x72, 0x5a
        };
        EXPECT_TRUE(srs_success == m.write_video(40, (char*)raw, sizeof(raw)));
    }
}

VOID TEST(KernelMP4Test, CoverMP4Codec)
{
    SrsMp4Encoder enc;
    MockSrsFileWriter f;
    SrsFormat fmt;
    EXPECT_TRUE(srs_success == enc.initialize(&f));
    EXPECT_TRUE(srs_success == fmt.initialize());
    
    if (true) {
        uint8_t raw[] = {
            0x17,
            0x00, 0x00, 0x00, 0x00, 0x01, 0x64, 0x00, 0x20, 0xff, 0xe1, 0x00, 0x19, 0x67, 0x64, 0x00, 0x20,
            0xac, 0xd9, 0x40, 0xc0, 0x29, 0xb0, 0x11, 0x00, 0x00, 0x03, 0x00, 0x01, 0x00, 0x00, 0x03, 0x00,
            0x32, 0x0f, 0x18, 0x31, 0x96, 0x01, 0x00, 0x05, 0x68, 0xeb, 0xec, 0xb2, 0x2c
        };
        EXPECT_TRUE(srs_success == fmt.on_video(0, (char*)raw, sizeof(raw)));
        EXPECT_TRUE(srs_success == enc.write_sample(
            SrsMp4HandlerTypeVIDE, fmt.video->frame_type, fmt.video->avc_packet_type, 0, 0, (uint8_t*)fmt.raw, fmt.nb_raw
        ));
    }
    
    if (true) {
        uint8_t raw[] = {
            0xaf, 0x00, 0x12, 0x10
        };
        EXPECT_TRUE(srs_success == fmt.on_audio(0, (char*)raw, sizeof(raw)));
        EXPECT_TRUE(srs_success == enc.write_sample(
            SrsMp4HandlerTypeSOUN, 0x00, fmt.audio->aac_packet_type, 0, 0, (uint8_t*)fmt.raw, fmt.nb_raw
        ));
    }
    
    if (true) {
        uint8_t raw[] = {
            0xaf,
            0x01, 0x21, 0x11, 0x45, 0x00, 0x14, 0x50, 0x01, 0x46, 0xf3, 0xf1, 0x0a, 0x5a, 0x5a, 0x5a, 0x5a,
            0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a,
            0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a,
            0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a,
            0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a,
            0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5e
        };
        EXPECT_TRUE(srs_success == fmt.on_audio(0, (char*)raw, sizeof(raw)));
        EXPECT_TRUE(srs_success == enc.write_sample(
            SrsMp4HandlerTypeSOUN, 0x00, fmt.audio->aac_packet_type, 34, 34, (uint8_t*)fmt.raw, fmt.nb_raw
        ));
    }
    
    if (true) {
        uint8_t raw[] = {
            0x27,
            0x01, 0x00, 0x00, 0x50, 0x00, 0x00, 0x00, 0x7b, 0x41, 0x9a, 0x21, 0x6c, 0x42, 0x1f, 0x00, 0x00,
            0xf1, 0x68, 0x1a, 0x35, 0x84, 0xb3, 0xee, 0xe0, 0x61, 0xba, 0x4e, 0xa8, 0x52, 0x48, 0x50, 0x59,
            0x75, 0x42, 0xd9, 0x96, 0x4a, 0x51, 0x38, 0x2c, 0x63, 0x5e, 0x41, 0xc9, 0x70, 0x60, 0x9d, 0x13,
            0x53, 0xc2, 0xa8, 0xf5, 0x45, 0x86, 0xc5, 0x3e, 0x28, 0x1a, 0x69, 0x5f, 0x71, 0x1e, 0x51, 0x74,
            0x0e, 0x31, 0x47, 0x3c, 0xd3, 0xd2, 0x10, 0x25, 0x45, 0xc5, 0xb7, 0x31, 0xec, 0x7f, 0xd8, 0x02,
            0xae, 0xa4, 0x77, 0x6d, 0xcb, 0xc6, 0x1e, 0x2f, 0xa2, 0xd1, 0x12, 0x08, 0x34, 0x52, 0xea, 0xe8,
            0x0b, 0x4f, 0x81, 0x21, 0x4f, 0x71, 0x3f, 0xf2, 0xad, 0x02, 0x58, 0xdf, 0x9e, 0x31, 0x86, 0x9b,
            0x1b, 0x41, 0xbf, 0x2a, 0x09, 0x00, 0x43, 0x5c, 0xa1, 0x7e, 0x76, 0x59, 0xef, 0xa6, 0xfc, 0x82,
            0xb2, 0x72, 0x5a
        };
        EXPECT_TRUE(srs_success == fmt.on_video(0, (char*)raw, sizeof(raw)));
        EXPECT_TRUE(srs_success == enc.write_sample(
            SrsMp4HandlerTypeVIDE, fmt.video->frame_type, fmt.video->avc_packet_type, 40, 40, (uint8_t*)fmt.raw, fmt.nb_raw
        ));
    }
    
    EXPECT_TRUE(srs_success == enc.flush());
    
    if (true) {
        MockSrsFileReader fr((const char*)f.data, f.size);
        SrsMp4Decoder dec;
        EXPECT_TRUE(srs_success == dec.initialize(&fr));
        
        SrsMp4HandlerType ht;
        uint16_t ft, ct;
        uint32_t dts, pts, nb_sample;
        uint8_t* sample;
        EXPECT_TRUE(srs_success == dec.read_sample(&ht, &ft, &ct, &dts, &pts, &sample, &nb_sample));
        EXPECT_EQ(0, (int)dts);
    }
    
    if (true) {
        SrsMp4BoxReader br;
        MockSrsFileReader fr((const char*)f.data, f.size);
        EXPECT_TRUE(srs_success == br.initialize(&fr));
        
        SrsSimpleStream stream;
        
        for (;;) {
            SrsMp4Box* box = NULL;
            srs_error_t err = br.read(&stream, &box);
            if (err != srs_success) {
                srs_freep(err);
                break;
            }
            
            stringstream ss;
            SrsMp4DumpContext dc;
            dc.level = 0;
            dc.summary = false;
            box->dumps(ss, dc);
            
            EXPECT_TRUE(srs_success == br.skip(box, &stream));
            
            srs_freep(box);
        }
    }
}

uint8_t* mock_copy_bytes(char* data, int size)
{
    uint8_t* cp = new uint8_t[size];
    memcpy(cp, data, size);
    return cp;
}

VOID TEST(KernelMP4Test, CoverMP4M2tsSegmentEncoder)
{
    SrsMp4M2tsSegmentEncoder enc;
    MockSrsFileWriter f;
    EXPECT_TRUE(srs_success == enc.initialize(&f, 0, 0, 100));
    
    SrsFormat fmt;
    EXPECT_TRUE(srs_success == fmt.initialize());
    
    if (true) {
        uint8_t raw[] = {
            0x17,
            0x00, 0x00, 0x00, 0x00, 0x01, 0x64, 0x00, 0x20, 0xff, 0xe1, 0x00, 0x19, 0x67, 0x64, 0x00, 0x20,
            0xac, 0xd9, 0x40, 0xc0, 0x29, 0xb0, 0x11, 0x00, 0x00, 0x03, 0x00, 0x01, 0x00, 0x00, 0x03, 0x00,
            0x32, 0x0f, 0x18, 0x31, 0x96, 0x01, 0x00, 0x05, 0x68, 0xeb, 0xec, 0xb2, 0x2c
        };
        EXPECT_TRUE(srs_success == fmt.on_video(0, (char*)raw, sizeof(raw)));
        EXPECT_TRUE(srs_success == enc.write_sample(
            SrsMp4HandlerTypeVIDE, fmt.video->frame_type, 0, 0, mock_copy_bytes(fmt.raw, fmt.nb_raw), fmt.nb_raw
        ));
    }
    
    if (true) {
        uint8_t raw[] = {
            0xaf, 0x00, 0x12, 0x10
        };
        EXPECT_TRUE(srs_success == fmt.on_audio(0, (char*)raw, sizeof(raw)));
        EXPECT_TRUE(srs_success == enc.write_sample(
            SrsMp4HandlerTypeSOUN, 0x00, 0, 0, mock_copy_bytes(fmt.raw, fmt.nb_raw), fmt.nb_raw
        ));
    }
    
    if (true) {
        uint8_t raw[] = {
            0xaf,
            0x01, 0x21, 0x11, 0x45, 0x00, 0x14, 0x50, 0x01, 0x46, 0xf3, 0xf1, 0x0a, 0x5a, 0x5a, 0x5a, 0x5a,
            0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a,
            0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a,
            0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a,
            0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a,
            0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5e
        };
        EXPECT_TRUE(srs_success == fmt.on_audio(0, (char*)raw, sizeof(raw)));
        EXPECT_TRUE(srs_success == enc.write_sample(
            SrsMp4HandlerTypeSOUN, 0x00, 34, 34, mock_copy_bytes(fmt.raw, fmt.nb_raw), fmt.nb_raw
        ));
    }
    
    if (true) {
        uint8_t raw[] = {
            0x27,
            0x01, 0x00, 0x00, 0x50, 0x00, 0x00, 0x00, 0x7b, 0x41, 0x9a, 0x21, 0x6c, 0x42, 0x1f, 0x00, 0x00,
            0xf1, 0x68, 0x1a, 0x35, 0x84, 0xb3, 0xee, 0xe0, 0x61, 0xba, 0x4e, 0xa8, 0x52, 0x48, 0x50, 0x59,
            0x75, 0x42, 0xd9, 0x96, 0x4a, 0x51, 0x38, 0x2c, 0x63, 0x5e, 0x41, 0xc9, 0x70, 0x60, 0x9d, 0x13,
            0x53, 0xc2, 0xa8, 0xf5, 0x45, 0x86, 0xc5, 0x3e, 0x28, 0x1a, 0x69, 0x5f, 0x71, 0x1e, 0x51, 0x74,
            0x0e, 0x31, 0x47, 0x3c, 0xd3, 0xd2, 0x10, 0x25, 0x45, 0xc5, 0xb7, 0x31, 0xec, 0x7f, 0xd8, 0x02,
            0xae, 0xa4, 0x77, 0x6d, 0xcb, 0xc6, 0x1e, 0x2f, 0xa2, 0xd1, 0x12, 0x08, 0x34, 0x52, 0xea, 0xe8,
            0x0b, 0x4f, 0x81, 0x21, 0x4f, 0x71, 0x3f, 0xf2, 0xad, 0x02, 0x58, 0xdf, 0x9e, 0x31, 0x86, 0x9b,
            0x1b, 0x41, 0xbf, 0x2a, 0x09, 0x00, 0x43, 0x5c, 0xa1, 0x7e, 0x76, 0x59, 0xef, 0xa6, 0xfc, 0x82,
            0xb2, 0x72, 0x5a
        };
        EXPECT_TRUE(srs_success == fmt.on_video(0, (char*)raw, sizeof(raw)));
        EXPECT_TRUE(srs_success == enc.write_sample(
            SrsMp4HandlerTypeVIDE, fmt.video->frame_type, 40, 40, mock_copy_bytes(fmt.raw, fmt.nb_raw), fmt.nb_raw
        ));
    }
    
    uint64_t dts = 0;
    EXPECT_TRUE(srs_success == enc.flush(dts));
}