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• Merge commit ’05a4bacbf7ece618553d339afe1d0b57bc87aea8’

  9 juillet 2016, par Clément Bœsch

  Merge commit ’05a4bacbf7ece618553d339afe1d0b57bc87aea8’
  * commit ’05a4bacbf7ece618553d339afe1d0b57bc87aea8’ :
  
    avpacket : Error out when creating 0-sized side data
  This commit is a noop, see 5a633ec2dd453c67ff23819c28d98e6b09c47295
  AV_PKT_DATA_METADATA_UPDATE can be zero sized in order to clear old
  
  meta.
  Note : maybe we could add a start or end marker.
  Merged-by : Clément Bœsch <u@pkh.me>
  

• can't decode RTMP stream from adobe FMS

  25 juillet 2013, par Mike Versteeg

  I have written code to decode RTMP streams but ran into a problem decoding a stream from FMS. Same stream from Wowza server works fine, but when using Adobe FMS I
  keep getting the same error (note it works fine in a flash player).

  I can confirm the problem using ffmpeg.exe, here's the output of the latest git, anyone have an idea ?

  ffmpeg version N-54901-g55db06a Copyright (c) 2000-2013 the FFmpeg developers
  
    built on Jul 23 2013 18:01:29 with gcc 4.7.3 (GCC)
  
    configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-av
  
  isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab
  
  le-iconv --enable-libass --enable-libbluray --enable-libcaca --enable-libfreetyp
  
  e --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --ena
  
  ble-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-l
  
  ibopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libsp
  
  eex --enable-libtheora --enable-libtwolame --enable-libvo-aacenc --enable-libvo-
  
  amrwbenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxavs --
  
  enable-libxvid --enable-zlib
  
    libavutil      52. 40.100 / 52. 40.100
  
    libavcodec     55. 19.100 / 55. 19.100
  
    libavformat    55. 12.102 / 55. 12.102
  
    libavdevice    55.  3.100 / 55.  3.100
  
    libavfilter     3. 81.102 /  3. 81.102
  
    libswscale      2.  4.100 /  2.  4.100
  
    libswresample   0. 17.103 /  0. 17.103
  
    libpostproc    52.  3.100 / 52.  3.100
  
  Parsing...
  
  Parsed protocol: 0
  
  Parsed host    : [removed for privacy reasons]
  
  Parsed app     : vidlivestream/_definst_/stream
  
  RTMP_Connect1, ... connected, handshaking
  
  HandShake: Type Answer   : 03
  
  HandShake: Server Uptime : 506058230
  
  HandShake: FMS Version   : 4.5.5.1
  
  HandShake: Handshaking finished....
  
  RTMP_Connect1, handshaked
  
  Invoking connect
  
  HandleServerBW: server BW = 1250000
  
  HandleClientBW: client BW = 1250000 2
  
  HandleChangeChunkSize, received: chunk size change to 1024
  
  HandleCtrl, received ctrl. type: 6, len: 6
  
  HandleCtrl, Ping 506058630
  
  sending ctrl. type: 0x0007
  
  RTMP_ClientPacket, received: invoke 242 bytes
  
  (object begin)
  
  Property: 
  
  Property: 
  
  Property: 
  
  (object begin)
  
  Property: 4,5,5,4013>
  
  Property: 
  
  Property: 
  
  (object end)
  
  Property: 
  
  (object begin)
  
  Property: 
  
  Property: 
  
  Property: 
  
  Property: 
  
  Property: 
  
  (object begin)
  
  Property: 
  
  (object end)
  
  (object end)
  
  (object end)
  
  HandleInvoke, server invoking <_result>
  
  HandleInvoke, received result for method call <connect>
  
  sending ctrl. type: 0x0003
  
  Invoking createStream
  
  RTMP_ClientPacket, received: invoke 21 bytes
  
  (object begin)
  
  Property: 
  
  Property: 
  
  Property: NULL
  
  (object end)
  
  HandleInvoke, server invoking <onbwdone>
  
  Invoking _checkbw
  
  RTMP_ClientPacket, received: invoke 29 bytes
  
  (object begin)
  
  Property: 
  
  Property: 
  
  Property: NULL
  
  Property: 
  
  (object end)
  
  HandleInvoke, server invoking &lt;_result>
  
  HandleInvoke, received result for method call <createstream>
  
  SendPlay, seekTime=0, stopTime=0, sending play: test
  
  Invoking play
  
  sending ctrl. type: 0x0003
  
  RTMP_ClientPacket, received: invoke 16419 bytes
  
  (object begin)
  
  Property: 
  
  Property: 
  
  Property: NULL
  
  Property:  K H 7 ~ + $ K Z #   ! v 1 &lt; m N % h 9 n G t % J M p 1 f # t %
  
  ^ u ( I ^ ) &lt; 5 : ? @ a V O &lt; S n [ * y N y T e * 3 P 1 F ! 6 #   + ( w > W \ -
  
  : = ` _ 6 q $ - 0 e x G . &#39; 4 [ * / 0 / &amp; _ l ] @ k 8 )v>
  
  Property: 
  
  (object end)
  
  HandleInvoke, server invoking &lt;_onbwcheck>
  
  Invoking _result
  
  HandleChangeChunkSize, received: chunk size change to 1024
  
  RTMP_ClientPacket, received: invoke 142 bytes
  
  (object begin)
  
  Property: 
  
  Property: 
  
  Property: NULL
  
  Property: 
  
  (object begin)
  
  Property: 
  
  Property: 
  
  Property: 
  
  Property: 
  
  (object end)
  
  (object end)
  
  HandleInvoke, server invoking <onstatus>
  
  HandleInvoke, onStatus: NetStream.Play.Failed
  
  Closing connection: NetStream.Play.Failed
  
  </onstatus></createstream></onbwdone></connect>

  PS : although there is some resemblance to this topic, it is very old (certainly in ffmpeg terms) and the suggestions make no difference.

• How to make FFMPEG insert dynamic data in a video stream ?

  10 juin 2016, par Bepeho

  I’m trying to add an dynamic overlay to a file FFMPEG is generating for me.

  The overlay must display data received in real-time (let’s say the speed of a car where the video is being recorderd)

  Note that my question is not about displaying things in the video, but about how to have FFMPEG receive this data so it can display them.

  Has anyone done this before ? How ?

  Thank you