public BitmapStream askBitmapStream(int streamCount)
{
video_stream_fractions = new List <byte[]>(NUM_FRACTION);
video = new List <int>(NUM_FRACTION);
video_writing = new List <int>(NUM_FRACTION);
for (int i = 0; i < NUM_FRACTION; i++)
{
video_stream_fractions.Add(new byte[0]);
video.Add(0);
video_writing.Add(0);
}
video_stream = new CompressedBitmapStream();
//“有这个视频”名单空的，返回null
if (video_client.Count == 0)
{
return(null);
}
//给所有名单里的人发请求
Connector conn = find_conn(conn_video_header, video_client[streamCount % video_client.Count]);
Package pack = new Package("request_video");
pack.header.Add("" + streamCount);
conn.send(pack);
while (true)
{
//等待回复
//如果某个线程知道有回复了，就把video改成1，然后读data写到video_stream（buffer）里面
int tag = 1;
for (int i = 0; i < NUM_FRACTION; i++)
{
if (video[i] == 0)
{
tag = 0;
break;
}
}
if (tag == 1)
{
MemoryStream stream = new MemoryStream();
BinaryFormatter formatter = new BinaryFormatter();
for (int i = 0; i < NUM_FRACTION; i++)
{
stream.Write(video_stream_fractions[i], 0, video_stream_fractions[i].Length);
}
stream.Position = 0;
//解压缩一下。。。
/*byte[] data = stream.ToArray();
* stream = new MemoryStream();
* GZipStream decomp = new GZipStream(stream,CompressionMode.Decompress);
* decomp.Read(data, 0, data.Length);
*/
video_stream = (CompressedBitmapStream)formatter.Deserialize(stream);
return(video_stream.toBitmapStream());
}
}
}
