public void loadBitmapStream()
{
//“后台”线程，如果bitmap_stream的长度小于2，就读新的BitmapStream
//两个BitmapStream的时候这个function就卡住了
while (true)
{
//load 4 buffers
while (bitmap_stream.Count >= buffer_num)
{
Thread.Sleep(200);
if (reader.finish == 1)
{
return;
}
}
Console.Out.WriteLine("loading buffer...");
BitmapStream stream_tmp = new BitmapStream();
//reader的loadBitmapStream是读取bitmapstream
//本地不用考虑异步、大家read的不对齐的情况，参数直接设-1
stream_tmp = reader.loadBitmapStream_count(-1);
bitmap_stream.Add(stream_tmp);
countBitmap++;
}
}
public void listen_video_header()
{
while (true)
{
Console.Out.WriteLine("listen_video_header is running...");
Package pack = conn.recv();
if (pack == null)
{
continue;
}
if (pack.type == "ask_video")
{
/*
* header for request:
* [0] Name
*/
List <String> header = new List <String>(pack.header);
String[] tmp = header[0].Split('\\');
String tmp_addr = Utils.search_addr_from_list(tmp[tmp.Length - 1], Client.media);
if (tmp_addr != "" && File.Exists(tmp_addr))
{
//该文件存在，载入到本线程的reader里面
//接受的时候不需要reader，只有传的时候需要，所以一个reader就够了
/*
* type of resp: has_video
*
* reader the info from the video file and response a header
*
* header of resp:
* [0] FrameRate(给player设置interval)
* [1] Height
* [2] Width
*
* 那个wmv是历史遗留问题反正avi也是这个参数。。。
*
*/
header = reader.loadFile(tmp_addr, "wmv");
for (int i = 0; i < header.Count; i++)
{
Console.Out.WriteLine("{0}: {1}", i, header[i]);
}
Package pack_resp = new Package("has_video");
pack_resp.header = new List <string>(header);
Connector conn_resp = Client.find_conn(Client.conn_video_data, pack.from);
conn_resp.send(pack_resp);
}
else
{
Package pack_resp = new Package("no_video");
Connector conn_resp = Client.find_conn(Client.conn_video_data, pack.from);
conn_resp.send(pack_resp);
}
}
else if (pack.type == "request_video" && num_frac == 0)
{
/*
* header for request:
* [0] 第几个bitmapStream
*/
List <String> header = new List <String>(pack.header);
if (reader.finish == 1)
{
//空了，给一个end_video
Package pack_resp = new Package("end_video");
List <Connector> conn_resp = Client.find_conns(Client.conn_video_data, pack.from);
conn_resp[0].send(pack_resp);
}
else
{
BitmapStream bitmapStream = reader.loadBitmapStream_count(Int32.Parse(header[0]));
CompressedBitmapStream comp_bitmapStream = new CompressedBitmapStream(bitmapStream);
//把object serialize成memoryStream,再到byte[]
MemoryStream stream = new MemoryStream();
BinaryFormatter formatter = new BinaryFormatter();
formatter.Serialize(stream, comp_bitmapStream);
byte[] data = stream.ToArray();
//byte[] m = Compress.compress(data);
List <byte[]> data_list = new List <byte[]>();
int offset = (int)data.Length / Client.NUM_FRACTION;
for (int i = 0; i < Client.NUM_FRACTION; i++)
{
byte[] tmp_data;
if (i < Client.NUM_FRACTION - 1)
{
tmp_data = new byte[offset];
}
else
{
tmp_data = new byte[data.Length - (Client.NUM_FRACTION - 1) * offset];
}
System.Buffer.BlockCopy(data, i * offset, tmp_data, 0, tmp_data.Length);
data_list.Add(tmp_data);
}
//发回去
List <Connector> conn_resp = Client.find_conns(Client.conn_video_data, pack.from);
if (conn_resp.Count == 0)
{
return;
}
for (int i = 0; i < Client.NUM_FRACTION; i++)
{
Package pack_resp = new Package("video_resp");
pack_resp.data = data_list[i];
if (conn_resp[i].ip_send == "")
{
return;
}
send_thread a = new send_thread(conn_resp[i], pack_resp);
a.start();
}
}
}
}
}
