[FFmpeg-trac] #2360(FFmpeg:new): FFmpeg rtp streaming was not simultaneously

[FFmpeg]

#2360: FFmpeg rtp streaming was not simultaneously
-------------------------------------+-------------------------------------
             Reporter:  Ken_JJ       |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:  FFmpeg       |                  Version:  1.1.3
             Keywords:  rtp          |               Blocked By:
  simultaneously                     |  Reproduced by developer:  0
             Blocking:               |
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 Summary of the bug:
 Hello,I use ffmpeg-1.1.3 and deliver stream to darwin server.
 First,I create a sdp data.

 ffmpeg -f video4linux2 -s 720:480 -i /dev/video0 -f alsa -i hw:0,0 -an
 -vcodec libx264 -pix_fmt yuv420p -s 176x144 -b 104k -r 12 -profile
 baseline -level 30 -flags +global_header -f rtp rtp://XXXIP:20000 -vn
 -flags +global_header -acodec libfaac -ac 1 -ar 16000 -ab 16k -f rtp
 rtp://XXXIP:20002>test.sdp

 SDP Data
 SDP:
 v=0
 o=- 0 0 IN IP4 127.0.0.1
 s=No Name
 t=0 0
 a=tool:libavformat 54.59.106
 m=video 20000 RTP/AVP 96
 c=IN IP4 XXXIP
 b=AS:104
 a=rtpmap:96 H264/90000
 a=fmtp:96 packetization-mode=1; sprop-parameter-
 sets=Z0LAHtkCxOhAAAADAEAAAAYDxYuS,aMuMsg==; profile-level-id=42C01E
 m=audio 20002 RTP/AVP 97
 c=IN IP4 XXXIP
 b=AS:16
 a=rtpmap:97 MPEG4-GENERIC/16000/1
 a=fmtp:97 profile-level-id=1;mode=AAC-
 hbr;sizelength=13;indexlength=3;indexdeltalength=3; config=1408

 Second,I copy the sdp data in Darwin Server /usr/local/movies/
 and remove the word "SDP:"

 Third,
 Play ffmpeg
 ffmpeg -f video4linux2 -s 720:480 -i /dev/video0 -f alsa -i hw:0,0 -an
 -vcodec libx264 -pix_fmt yuv420p -s 176x144 -b 104k -r 12 -profile
 baseline -level 30 -flags +global_header -f rtp rtp://XXXIP:20000 -vn
 -flags +global_header -acodec libfaac -ac 1 -ar 16000 -ab 16k -f rtp
 rtp://XXXIP:20002

 But,I use feature phone(rtsp),it has no audio,so I fix the parameter.(add
 -rtpflags latm)

 ffmpeg -f video4linux2 -s 720:480 -i /dev/video0 -f alsa -i hw:0,0 -an
 -vcodec libx264 -pix_fmt yuv420p -s 176x144 -b 104k -r 12 -profile
 baseline -level 30 -flags +global_header -f rtp rtp://XXXIP:20000 -vn
 -flags +global_header -rtpflags latm -acodec libfaac -ac 1 -ar 16000 -ab
 16k -f rtp rtp://XXXIP:20002>test.sdp

 SDP Data:
 SDP:
 v=0
 o=- 0 0 IN IP4 127.0.0.1
 s=No Name
 t=0 0
 a=tool:libavformat 54.59.106
 m=video 20000 RTP/AVP 96
 c=IN IP4 XXXIP
 b=AS:104
 a=rtpmap:96 H264/90000
 a=fmtp:96 packetization-mode=1; sprop-parameter-
 sets=Z0LAHtkCxOhAAAADAEAAAAYDxYuS,aMuMsg==; profile-level-id=42C01E
 m=audio 20002 RTP/AVP 97
 c=IN IP4 XXXIP
 b=AS:16
 a=rtpmap:97 MP4A-LATM/16000/1
 a=fmtp:97 profile-level-id=40;cpresent=0;config=400028103fc0

 It look perfectly,but the sound is faster than video.

 So,have anyone known how to sovle it?

 Thanks

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2360>
FFmpeg <http://ffmpeg.org>
FFmpeg issue tracker