diff --git a/libyk/youku_impl.cpp b/libyk/youku_impl.cpp
index fbd4a95..63c4bfa 100644
--- a/libyk/youku_impl.cpp
+++ b/libyk/youku_impl.cpp
@@ -1,429 +1,426 @@
-#include <cstddef>
-#include <strstream>
-#include <boost/crc.hpp>  // for boost::crc_32_type
-#include "youku_impl.h"
-
-namespace libyk {
-
-using boost::property_tree::wptree;
-
-template <class Ptree, class Stream>
-void dump_json(Ptree json, Stream &stream, int level = 0)
-{
-	if (level == 0)
-	{
-		level++;
-		stream << "{\n";
-	}
-	int s = json.size();
-	BOOST_FOREACH(Ptree::value_type &v, json)
-	{
-		std::string first = avhttp::detail::wide_utf8(v.first);
-		if (v.second.size() == 0)
-		{
-			for (int i = 0; i < level; i++)
-				stream << "  ";
-			stream << "\"" << first << "\"" << ":" << "\"" << avhttp::detail::wide_utf8(v.second.get_value<std::wstring>()) << "\"";
-			if (s != 1)
-				stream << ",";
-			stream << std::endl;
-		}
-		else
-		{
-			if (first != "")
-			{
-				for (int i = 0; i < level; i++)
-					stream << "  ";
-				stream << "\"" << first << "\"" << ":[" << std::endl;
-			}
-			else
-			{
-				for (int i = 0; i < level; i++)
-					stream << "  ";
-				stream << "{" << std::endl;
-			}
-			dump_json(v.second, stream, level + 1);
-			if (first != "")
-			{
-				for (int i = 0; i < level; i++)
-					stream << "  ";
-				if (s != 1)
-					stream << "]," << std::endl;
-				else
-					stream << "]" << std::endl;
-			}
-			else
-			{
-				for (int i = 0; i < level; i++)
-					stream << "  ";
-				if (s != 1)
-					stream << "}," << std::endl;
-				else
-					stream << "}" << std::endl;
-			}
-		}
-		s--;
-	}
-	if (level == 1)
-	{
-		stream << "}";
-	}
-}
-
-youku_impl::youku_impl(void)
-	: m_http_stream(m_io_service)
-	, m_multi_http(m_io_service)
-	, m_timer(m_io_service)
-	, m_quality(normal_quality)
-{
-#ifdef _DEBUG
-	INIT_LOGGER(".", "youku.log");
-#endif
-	// 设置为ssl不认证模式.
-	m_http_stream.check_certificate(false);
-}
-
-youku_impl::~youku_impl(void)
-{
-}
-
-bool youku_impl::open(const std::string &url,
-	std::string save_path/* = "."*/, video_quality quality/* = normal_quality*/)
-{
-	std::string prefix_youku_url = "http://v.youku.com/v_show/id_";
-	const int vid_length = 13;
-
-	m_quality = quality;
-	m_url = url;
-	m_abort = false;
-
-	// 检查url是否是youku的视频链接.
-	std::string::size_type pos = url.find(prefix_youku_url);
-	if (pos == std::string::npos)
-		return false;
-
-	// 得到视频id.
-    std::string vid = url.substr(pos + prefix_youku_url.length());
-	if (vid.length() >= vid_length)
-		vid = vid.substr(0, vid_length);
-	else
-		return false;
-
-	// 下载视频文件列表json.
-	std::string prefix_query_url =
-		"https://openapi.youku.com/v2/videos/files.json?"
-		"client_id=e57bc82b1a9dcd2f&"
-		"client_secret=a361608273b857415ee91a8285a16b4a&video_id=";
-
-	// 添加id.
-	std::string query = prefix_query_url + vid;
-	// 添加passwd.
-	std::string password = "";
-	query += password.empty() ? "" : "&watch_password=" + password;
-
-	// 发起请求.
-	avhttp::request_opts opt;
-	opt.insert(avhttp::http_options::user_agent,
-		"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.31 (KHTML, like Gecko) Chrome/26.0.1410.64 Safari/537.31");
-	opt.insert(avhttp::http_options::referer, query);
-	opt.insert("Accept-Language", "Accept-Language: zh-CN,zh;q=0.8");
-	opt.insert("Accept-Charset", "gb18030,utf-8;q=0.7,*;q=0.3");
-
-	boost::system::error_code ec;
-	m_http_stream.open(query, ec);
-	if (ec)
-	{
-		// 查询json失败.
-		return false;
-	}
-
-	// 请求json字符串, 然后解析.
-	boost::asio::streambuf response;
-	std::ostringstream oss;
-
-	while (boost::asio::read(m_http_stream,
-		response, boost::asio::transfer_at_least(1), ec))
-	{
-		oss << &response;
-	}
-	// 关闭http链接.
-	m_http_stream.close(ec);
-
-	// 转为宽字符串流.
-	std::wstring utf = avhttp::detail::utf8_wide(oss.str());
-	std::wstringstream stream;
-	stream << utf;
-
-	// 解析json字符串.
-	wptree root;
-	try {
-		boost::property_tree::read_json<wptree>(stream, root);
-		try {
-			wptree errinfo = root.get_child(L"error");
-			int err = errinfo.get<int>(L"code");
-			// 输出json中包含的错误代码.
-			std::cerr << "error code: " << err << std::endl;
-			return false;
-		}
-		catch (std::exception &)
-		{}
-
-		// 得到文件表.
-		wptree files = root.get_child(L"files");
-
-		// std::fstream file;
-		// file.open("dump.js", std::ios::trunc|std::ios::binary|std::ios::out);
-		// dump_json(files, file);
-
-		BOOST_FOREACH(wptree::value_type &v, files)
-		{
-			video_info info;
-			video_type vq;
-
-			if (v.first == L"hd2")			// 高清.
-			{
-				vq = hd2;
-			}
-			else if (v.first == L"mp4")		// 普通质量.
-			{
-				vq = mp4;
-			}
-			else if (v.first == L"flv")
-			{
-				vq = flv;
-			}
-			else if (v.first == L"3gphd")
-			{
-				vq = gp3hd;
-			}
-			else if (v.first == L"m3u8")
-			{
-				vq = m3u8;
-			}
-
-			if (v.second.size() != 0)
-			{
-				BOOST_FOREACH(wptree::value_type &v, v.second)
-				{
-					if (v.first == L"duration")
-					{
-						std::string duration = avhttp::detail::wide_utf8(v.second.get_value<std::wstring>());
-						info.duration = boost::lexical_cast<float>(duration);
-					}
-
-					if (v.second.size() != 0)
-					{
-						BOOST_FOREACH(wptree::value_type &v, v.second)
-						{
-							video_clip clip;
-							BOOST_FOREACH(wptree::value_type &v, v.second)
-							{
-								if (v.first == L"duration")
-								{
-									std::string duration = avhttp::detail::wide_utf8(v.second.get_value<std::wstring>());
-									clip.duration = boost::lexical_cast<float>(duration);
-								}
-								else if (v.first == L"no")
-								{
-									clip.id = v.second.get_value<int>();
-								}
-								else if (v.first == L"size")
-								{
-									clip.filesize = v.second.get_value<int>();
-								}
-								else if (v.first == L"url")
-								{
-									clip.url = avhttp::detail::wide_utf8(v.second.get_value<std::wstring>());
-								}
-							}
-
-							info.fs.push_back(clip);
-						}
-					}
-				}
-			}
-
-			// 保存到容器.
-			m_video_group.insert(std::make_pair(vq, info));
-		}
-
-		// 得到当前需要下载的视频url.
-		if (m_video_group.find(query_quality()) == m_video_group.end())
-		{
-			return false;
-		}
-
-		async_request_youku();
-
-		// 启动io线程.
-		m_work_thread = boost::thread(boost::bind(&youku_impl::io_service_thread, this));
-	}
-	catch (std::exception &e)
-	{
-		std::cerr << e.what() << std::endl;
-		return false;
-	}
-
-    return true;
-}
-
-void youku_impl::io_service_thread()
-{
-	while (!m_io_service.stopped())
-	{
-		m_io_service.run_one();
-
-		if (m_abort)
-			break;
-	}
-}
-
-void youku_impl::stop()
-{
-	m_abort = true;
-	if (m_work_thread.joinable())
-	{
-		m_work_thread.join();
-	}
-}
-
-bool youku_impl::wait_for_complete()
-{
-	m_work_thread.join();
-	if (m_abort == true)
-		return false;
-	return true;
-}
-
-void youku_impl::async_request_youku()
-{
-	video_info &info = m_video_group[query_quality()];
-
-	std::string query;
-	int id;
-	for (std::vector<video_clip>::iterator i = info.fs.begin();
-		i != info.fs.end(); i++)
-	{
-		if (i->state == init_state)
-		{
-			i->state = start_state;
-			query = i->url;
-			id = i->id;
-			break;
-		}
-	}
-
-	if (query.empty())
-	{
-		return;
-	}
-
-	avhttp::settings set;
-
-	// 不允许使用meta中保存的url链接, 因为meta中保证的url会过期.
-	set.allow_use_meta_url = false;
-
-	// 生成唯一的meta文件名.
-	boost::crc_32_type result;
-	result.process_bytes(m_url.c_str(), m_url.size());
-	std::stringstream ss;
-	ss.imbue(std::locale("C"));
-	ss << std::hex << result.checksum() << id << ".meta";
-	set.meta_file = ss.str();
-
-	// 设置request_opts.
-	avhttp::request_opts &opt = set.opts;
-
-	opt.insert(avhttp::http_options::user_agent,
-		"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.31 (KHTML, like Gecko) Chrome/26.0.1410.64 Safari/537.31");
-	opt.insert(avhttp::http_options::referer, m_url);
-	opt.insert("Accept-Language", "Accept-Language: zh-CN,zh;q=0.8");
-	opt.insert("Accept-Charset", "gb18030,utf-8;q=0.7,*;q=0.3");
-
-	// 异步调用开始下载.
-	m_multi_http.async_start(query, set,
-		boost::bind(&youku_impl::handle_check_download,
-			this,
-			boost::asio::placeholders::error
-		)
-	);
-}
-
-void youku_impl::handle_check_download(const boost::system::error_code &ec)
-{
-	if (ec)
-	{
-		// 继续请求下一个视频.
-		async_request_youku();
-		return;
-	}
-
-	// 检查是否下载完成.
-	boost::int64_t file_size = m_multi_http.file_size();
-	boost::int64_t bytes_download = m_multi_http.bytes_download();
-
-	// 服务已经停止, 重新启动任务, 开始请求时间.
-	if (m_multi_http.stopped())
-	{
-		if (file_size != bytes_download) // 说明出了问题!!!
-		{
-			LOG_DEBUG("糟糕, 视频下载未完成, 出错了!");
-		}
-		else
-		{
-			LOG_DEBUG("恭喜, 一个视频下载完成!");
-		}
-
-		// 继续请求下一个视频.
-		async_request_youku();
-		return;
-	}
-
-	// 在这里启动定时器, 检查是否下载完成.
-	m_timer.expires_from_now(boost::posix_time::seconds(1));
-	m_timer.async_wait(boost::bind(&youku_impl::handle_check_download,
-		this, boost::asio::placeholders::error));
-}
-
-youku_impl::video_type youku_impl::query_quality()
-{
-	if (m_quality == high_quality)
-	{
-		if (m_video_group.find(hd2) != m_video_group.end())
-		{
-			return hd2;
-		}
-	}
-	else if (m_quality == normal_quality)
-	{
-		if (m_video_group.find(mp4) != m_video_group.end())
-		{
-			return mp4;
-		}
-	}
-	else if (m_quality == low_quality)
-	{
-		if (m_video_group.find(flv) != m_video_group.end())
-		{
-			return flv;
-		}
-		if (m_video_group.find(gp3hd) != m_video_group.end())
-		{
-			return gp3hd;
-		}
-	}
-	else if (m_quality == mobile_quality)
-	{
-		if (m_video_group.find(m3u8) != m_video_group.end())
-		{
-			return m3u8;
-		}
-	}
-
-	return m_video_group.begin()->first;
-}
-
-}
-
-
-
+#include <cstddef>
+#include <strstream>
+#include <boost/crc.hpp>  // for boost::crc_32_type
+#include "youku_impl.h"
+
+namespace libyk {
+
+using boost::property_tree::wptree;
+
+template <class Ptree, class Stream>
+void dump_json(Ptree json, Stream &stream, int level = 0)
+{
+	if (level == 0)
+	{
+		level++;
+		stream << "{\n";
+	}
+	int s = json.size();
+	BOOST_FOREACH(Ptree::value_type &v, json)
+	{
+		std::string first = avhttp::detail::wide_utf8(v.first);
+		if (v.second.size() == 0)
+		{
+			for (int i = 0; i < level; i++)
+				stream << "  ";
+			stream << "\"" << first << "\"" << ":" << "\"" << avhttp::detail::wide_utf8(v.second.get_value<std::wstring>()) << "\"";
+			if (s != 1)
+				stream << ",";
+			stream << std::endl;
+		}
+		else
+		{
+			if (first != "")
+			{
+				for (int i = 0; i < level; i++)
+					stream << "  ";
+				stream << "\"" << first << "\"" << ":[" << std::endl;
+			}
+			else
+			{
+				for (int i = 0; i < level; i++)
+					stream << "  ";
+				stream << "{" << std::endl;
+			}
+			dump_json(v.second, stream, level + 1);
+			if (first != "")
+			{
+				for (int i = 0; i < level; i++)
+					stream << "  ";
+				if (s != 1)
+					stream << "]," << std::endl;
+				else
+					stream << "]" << std::endl;
+			}
+			else
+			{
+				for (int i = 0; i < level; i++)
+					stream << "  ";
+				if (s != 1)
+					stream << "}," << std::endl;
+				else
+					stream << "}" << std::endl;
+			}
+		}
+		s--;
+	}
+	if (level == 1)
+	{
+		stream << "}";
+	}
+}
+
+youku_impl::youku_impl(void)
+	: m_http_stream(m_io_service)
+	, m_multi_http(m_io_service)
+	, m_timer(m_io_service)
+	, m_quality(normal_quality)
+{
+#ifdef _DEBUG
+	INIT_LOGGER(".", "youku.log");
+#endif
+	// 设置为ssl不认证模式.
+	m_http_stream.check_certificate(false);
+}
+
+youku_impl::~youku_impl(void)
+{
+}
+
+bool youku_impl::open(const std::string &url,
+	std::string save_path/* = "."*/, video_quality quality/* = normal_quality*/)
+{
+	std::string prefix_youku_url = "http://v.youku.com/v_show/id_";
+	const int vid_length = 13;
+
+	m_quality = quality;
+	m_url = url;
+	m_abort = false;
+
+	// 检查url是否是youku的视频链接.
+	std::string::size_type pos = url.find(prefix_youku_url);
+	if (pos == std::string::npos)
+		return false;
+
+	// 得到视频id.
+    std::string vid = url.substr(pos + prefix_youku_url.length());
+	if (vid.length() >= vid_length)
+		vid = vid.substr(0, vid_length);
+	else
+		return false;
+
+	// 下载视频文件列表json.
+	std::string prefix_query_url =
+		"https://openapi.youku.com/v2/videos/files.json?"
+		"client_id=none&"
+		"client_secret=none&video_id=";
+
+	// 添加id.
+	std::string query = prefix_query_url + vid;
+	// 添加passwd.
+	std::string password = "";
+	query += password.empty() ? "" : "&watch_password=" + password;
+
+	// 发起请求.
+	avhttp::request_opts opt;
+	opt.insert(avhttp::http_options::user_agent,
+		"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.31 (KHTML, like Gecko) Chrome/26.0.1410.64 Safari/537.31");
+	opt.insert(avhttp::http_options::referer, query);
+	opt.insert("Accept-Language", "Accept-Language: zh-CN,zh;q=0.8");
+	opt.insert("Accept-Charset", "gb18030,utf-8;q=0.7,*;q=0.3");
+
+	boost::system::error_code ec;
+	m_http_stream.open(query, ec);
+	if (ec)
+	{
+		// 查询json失败.
+		return false;
+	}
+
+	// 请求json字符串, 然后解析.
+	boost::asio::streambuf response;
+	std::ostringstream oss;
+
+	while (boost::asio::read(m_http_stream,
+		response, boost::asio::transfer_at_least(1), ec))
+	{
+		oss << &response;
+	}
+	// 关闭http链接.
+	m_http_stream.close(ec);
+
+	// 转为宽字符串流.
+	std::wstring utf = avhttp::detail::utf8_wide(oss.str());
+	std::wstringstream stream;
+	stream << utf;
+
+	// 解析json字符串.
+	wptree root;
+	try {
+		boost::property_tree::read_json<wptree>(stream, root);
+		try {
+			wptree errinfo = root.get_child(L"error");
+			int err = errinfo.get<int>(L"code");
+			// 输出json中包含的错误代码.
+			std::cerr << "error code: " << err << std::endl;
+			return false;
+		}
+		catch (std::exception &)
+		{}
+
+		// 得到文件表.
+		wptree files = root.get_child(L"files");
+
+		// std::fstream file;
+		// file.open("dump.js", std::ios::trunc|std::ios::binary|std::ios::out);
+		// dump_json(files, file);
+
+		BOOST_FOREACH(wptree::value_type &v, files)
+		{
+			video_info info;
+			video_type vq;
+
+			if (v.first == L"hd2")			// 高清.
+			{
+				vq = hd2;
+			}
+			else if (v.first == L"mp4")		// 普通质量.
+			{
+				vq = mp4;
+			}
+			else if (v.first == L"flv")
+			{
+				vq = flv;
+			}
+			else if (v.first == L"3gphd")
+			{
+				vq = gp3hd;
+			}
+			else if (v.first == L"m3u8")
+			{
+				vq = m3u8;
+			}
+
+			if (v.second.size() != 0)
+			{
+				BOOST_FOREACH(wptree::value_type &v, v.second)
+				{
+					if (v.first == L"duration")
+					{
+						std::string duration = avhttp::detail::wide_utf8(v.second.get_value<std::wstring>());
+						info.duration = boost::lexical_cast<float>(duration);
+					}
+
+					if (v.second.size() != 0)
+					{
+						BOOST_FOREACH(wptree::value_type &v, v.second)
+						{
+							video_clip clip;
+							BOOST_FOREACH(wptree::value_type &v, v.second)
+							{
+								if (v.first == L"duration")
+								{
+									std::string duration = avhttp::detail::wide_utf8(v.second.get_value<std::wstring>());
+									clip.duration = boost::lexical_cast<float>(duration);
+								}
+								else if (v.first == L"no")
+								{
+									clip.id = v.second.get_value<int>();
+								}
+								else if (v.first == L"size")
+								{
+									clip.filesize = v.second.get_value<int>();
+								}
+								else if (v.first == L"url")
+								{
+									clip.url = avhttp::detail::wide_utf8(v.second.get_value<std::wstring>());
+								}
+							}
+
+							info.fs.push_back(clip);
+						}
+					}
+				}
+			}
+
+			// 保存到容器.
+			m_video_group.insert(std::make_pair(vq, info));
+		}
+
+		// 得到当前需要下载的视频url.
+		if (m_video_group.find(query_quality()) == m_video_group.end())
+		{
+			return false;
+		}
+
+		async_request_youku();
+
+		// 启动io线程.
+		m_work_thread = boost::thread(boost::bind(&youku_impl::io_service_thread, this));
+	}
+	catch (std::exception &e)
+	{
+		std::cerr << e.what() << std::endl;
+		return false;
+	}
+
+    return true;
+}
+
+void youku_impl::io_service_thread()
+{
+	while (!m_io_service.stopped())
+	{
+		m_io_service.run_one();
+
+		if (m_abort)
+			break;
+	}
+}
+
+void youku_impl::stop()
+{
+	m_abort = true;
+	if (m_work_thread.joinable())
+	{
+		m_work_thread.join();
+	}
+}
+
+bool youku_impl::wait_for_complete()
+{
+	m_work_thread.join();
+	if (m_abort == true)
+		return false;
+	return true;
+}
+
+void youku_impl::async_request_youku()
+{
+	video_info &info = m_video_group[query_quality()];
+
+	std::string query;
+	int id;
+	for (std::vector<video_clip>::iterator i = info.fs.begin();
+		i != info.fs.end(); i++)
+	{
+		if (i->state == init_state)
+		{
+			i->state = start_state;
+			query = i->url;
+			id = i->id;
+			break;
+		}
+	}
+
+	if (query.empty())
+	{
+		return;
+	}
+
+	avhttp::settings set;
+
+	// 不允许使用meta中保存的url链接, 因为meta中保证的url会过期.
+	set.allow_use_meta_url = false;
+
+	// 生成唯一的meta文件名.
+	boost::crc_32_type result;
+	result.process_bytes(m_url.c_str(), m_url.size());
+	std::stringstream ss;
+	ss.imbue(std::locale("C"));
+	ss << std::hex << result.checksum() << id << ".meta";
+	set.meta_file = ss.str();
+
+	// 设置request_opts.
+	avhttp::request_opts &opt = set.opts;
+
+	opt.insert(avhttp::http_options::user_agent,
+		"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.31 (KHTML, like Gecko) Chrome/26.0.1410.64 Safari/537.31");
+	opt.insert(avhttp::http_options::referer, m_url);
+	opt.insert("Accept-Language", "Accept-Language: zh-CN,zh;q=0.8");
+	opt.insert("Accept-Charset", "gb18030,utf-8;q=0.7,*;q=0.3");
+
+	// 异步调用开始下载.
+	m_multi_http.async_start(query, set,
+		boost::bind(&youku_impl::handle_check_download,
+			this,
+			boost::asio::placeholders::error
+		)
+	);
+}
+
+void youku_impl::handle_check_download(const boost::system::error_code &ec)
+{
+	if (ec)
+	{
+		// 继续请求下一个视频.
+		async_request_youku();
+		return;
+	}
+
+	// 检查是否下载完成.
+	boost::int64_t file_size = m_multi_http.file_size();
+	boost::int64_t bytes_download = m_multi_http.bytes_download();
+
+	// 服务已经停止, 重新启动任务, 开始请求时间.
+	if (m_multi_http.stopped())
+	{
+		if (file_size != bytes_download) // 说明出了问题!!!
+		{
+			LOG_DEBUG("糟糕, 视频下载未完成, 出错了!");
+		}
+		else
+		{
+			LOG_DEBUG("恭喜, 一个视频下载完成!");
+		}
+
+		// 继续请求下一个视频.
+		async_request_youku();
+		return;
+	}
+
+	// 在这里启动定时器, 检查是否下载完成.
+	m_timer.expires_from_now(boost::posix_time::seconds(1));
+	m_timer.async_wait(boost::bind(&youku_impl::handle_check_download,
+		this, boost::asio::placeholders::error));
+}
+
+youku_impl::video_type youku_impl::query_quality()
+{
+	if (m_quality == high_quality)
+	{
+		if (m_video_group.find(hd2) != m_video_group.end())
+		{
+			return hd2;
+		}
+	}
+	else if (m_quality == normal_quality)
+	{
+		if (m_video_group.find(mp4) != m_video_group.end())
+		{
+			return mp4;
+		}
+	}
+	else if (m_quality == low_quality)
+	{
+		if (m_video_group.find(flv) != m_video_group.end())
+		{
+			return flv;
+		}
+		if (m_video_group.find(gp3hd) != m_video_group.end())
+		{
+			return gp3hd;
+		}
+	}
+	else if (m_quality == mobile_quality)
+	{
+		if (m_video_group.find(m3u8) != m_video_group.end())
+		{
+			return m3u8;
+		}
+	}
+
+	return m_video_group.begin()->first;
+}
+
+}
\ No newline at end of file