[Libav-user] More streams were found in client side, why?

[sea]

Hello,


I push stream as follow, only one video and one audio were sent out.


Input #0, flv, from 'rtmp://live.hkstv.hk.lxdns.com/live/hks':
  Metadata:
    author          : PowerSmart
    copyright       :
    description     :
    datarate        : 500
    livetime        : 1470020146
    timeshift       : 0
  Duration: 01:00:00.00, start: 0.000000, bitrate: N/A
    Stream #0:0: Video: h264 (Constrained Baseline), yuv420p, 640x480, 15.17 fps, 15 tbr, 1k tbn, 30 tbc
    Stream #0:1: Audio: aac, 32000 Hz, stereo, fltp
[flv @ 031c96e0] Warning min_rate > 0 but min_rate != max_rate isn't recommended!
Output #0, flv, to 'rtmp://192.168.1.100:1935/live/1':
    Stream #0:0: Video: flv1 (flv), yuv420p, 640x480, q=10-51, 128 kb/s, 90k tbn, 30 tbc
    Stream #0:1: Audio: adpcm_swf, 11025 Hz, stereo, s16, 88 kb/s






But when I receive the stream with ffplay, I found four streams, two video and two audio. Where did the aac audio stream and h264 video stream come?


Input #0, flv, from 'rtmp://192.168.1.100:1935/live/1':
  Metadata:
    srs_authors     : 
    encoder         : Lavf55.37.102
    server          : SRS/2.0.223()
    srs_primary     : SRS/1.0release
    server_version  : 2.0.223
  Duration: N/A, start: 0.000000, bitrate: N/A
    Stream #0:0: Audio: aac, 44100 Hz, stereo, 128 kb/s
    Stream #0:1: Video: h264, none, 128 kb/s, 1k tbr, 1k tbn
    Stream #0:2: Video: flv1, yuv420p, 640x480, 15 fps, 15 tbr, 1k tbn
    Stream #0:3: Audio: adpcm_swf, 11025 Hz, stereo, s16, 88 kb/s
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