Ffmpeg (avconv) + crtmpserver Linux streaming video, no player to play it

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Old 08-15-2013
Ffmpeg (avconv) + crtmpserver Linux streaming video, no player to play it

Hello Linux experts,

I'm working on live video streaming project, and my job is to create video streaming server using
Ubuntu 13.04
Here is what I've done so far:
1. Installed crtmpserver from Ubuntu's repositories.
2. Installed ffmpeg

To test the server i use webcam as source of video, and the following command:
avconv -f video4linux2 -i /dev/video0 -f flv -an -metadata streamName="test" tcp://localhost:6666

The command output is:

avconv version 0.8.6-6:0.8.6-1ubuntu2, Copyright (c) 2000-2013 the Libav developers
  built on Mar 30 2013 22:20:06 with gcc 4.7.2
[video4linux2 @ 0x25b79e0] Estimating duration from bitrate, this may be inaccurate
Input #0, video4linux2, from '/dev/video0':
  Duration: N/A, start: 14840.930660, bitrate: 147456 kb/s
    Stream #0.0: Video: rawvideo, yuyv422, 640x480, 147456 kb/s, 30 tbr, 1000k tbn, 30 tbc
Incompatible pixel format 'yuyv422' for codec 'flv', auto-selecting format 'yuv420p'
[buffer @ 0x25b92e0] w:640 h:480 pixfmt:yuyv422
[avsink @ 0x25a5160] auto-inserting filter 'auto-inserted scaler 0' between the filter 'src' and the filter 'out'
[scale @ 0x25a5840] w:640 h:480 fmt:yuyv422 -> w:640 h:480 fmt:yuv420p flags:0x4
Output #0, flv, to 'tcp://localhost:6666':
    streamName      : test
    encoder         : Lavf53.21.1
    Stream #0.0: Video: flv, yuv420p, 640x480, q=2-31, 200 kb/s, 1k tbn, 30 tbc
Stream mapping:
  Stream #0:0 -> #0:0 (rawvideo -> flv)
Press ctrl-c to stop encoding

So far so good, BUT when I try to play the stream with mplayer from another console with the command:
mplayer rtmp://localhost/live/test mplayer is stalled for very long time (10-15 min.) before the video starts.

If in the meantime I terminate the avconv command, the video is being shown immediately by mplayer.
I tryied the following mplayer options without success:
different combinations of -cachie N

I had success with this flash player: Flash RTMP Player - Live Video Streaming
But there is about 3 sec. delay which is too much for me.

Please advice me how can I make mplayer play the video as soon as possible ?

Here is the mplayer output:
mplayer rtmp://localhost/live/test

MPlayer2 UNKNOWN (C) 2000-2012 MPlayer Team
mplayer: could not connect to socket
mplayer: No such file or directory
Failed to open LIRC support. You will not be able to use your remote control.

Playing rtmp://localhost/live/test.
Forced lavf FLV format demuxer
Detected file format: libavformat

Thank you in advance.
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