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• RTSP to RTMP Youtube Live only displays online for few seconds

  2 juin 2016, par Poison

  I’m trying to get the feed from an IP camera to Youtube Live. Simple enough uh.

  The command I’m using is the usual :

  ffmpeg -i rtsp://user:pass@ip:port/videoMain -f flv -r -s -an rtmp://a.rtmp.youtube.com/live2/per-sonal-code

  What happens

  Live Youtube receives the signal and says its healthy, after two or less seconds a red box appears saying they’re not receiving my signal. After that it displays "No signal". Webcam image is never shown.

  What I’ve tried

  Different parameters (-re, -rtsp_transport tcp, -s 640x480, -g 30, -r 30 ..) and different combinations of them, plus different resolutions, different buffer sizes and stream sizes, and different Ingestion settings on Youtube.

  Followed different very basic stuff tutorials.

  I’ve done it with ffmpeg in Windows 7 and Ubuntu 16.04, different networks (home and work), checked for possible port problems,...

  What confuses me

  Using streaming software like XSplit, or Manycam it actually works on the same computers !
  Also using the different command combinations, Youtube always receives the signal and its healthy before changing and displaying "No signal", its not complaining about low bitrate, or wrong format like I’ve seen in the different tutorials.

  I need to create two different streams for two cams, so ideally I’d prefer to use ffmpeg. However if anyone knows a software that can do this, please tell me. I’ve been stuck with this long enough !

  Thanks.

• Unbound variable error when installing ffmpeg on openshift online

  31 août 2016, par sinabakh

  I followed the steps on https://forums.openshift.com/ffmpeg but when performing make install I got this error :

  INSTALL doc/ffmpeg.1
  
  INSTALL doc/ffprobe.1
  
  INSTALL doc/ffserver.1
  
  INSTALL doc/ffmpeg-all.1
  
  INSTALL doc/ffprobe-all.1
  
  INSTALL doc/ffserver-all.1
  
  INSTALL doc/ffmpeg-utils.1
  
  INSTALL doc/ffmpeg-scaler.1
  
  INSTALL doc/ffmpeg-resampler.1
  
  INSTALL doc/ffmpeg-codecs.1
  
  INSTALL doc/ffmpeg-bitstream-filters.1
  
  INSTALL doc/ffmpeg-formats.1
  
  INSTALL doc/ffmpeg-protocols.1
  
  INSTALL doc/ffmpeg-devices.1
  
  INSTALL doc/ffmpeg-filters.1
  
  INSTALL doc/libavutil.3
  
  INSTALL doc/libswscale.3
  
  INSTALL doc/libswresample.3
  
  INSTALL doc/libavcodec.3
  
  INSTALL doc/libavformat.3
  
  INSTALL doc/libavdevice.3
  
  INSTALL doc/libavfilter.3
  
  /var/lib/openshift//python//bin/install: line 10: version: unbound variable
  
  make: *** [install-man] Error 1

  And It’s the install file(which gives error) :

  #!/bin/bash -eu
  
  
  
  source $OPENSHIFT_CARTRIDGE_SDK_BASH
  
  
  
  case "$1" in
  
       -v|--version)
  
       version="$2"
  
  esac
  
  
  
  echo "$version" > ${OPENSHIFT_PYTHON_DIR}env/OPENSHIFT_PYTHON_VERSION
  
  
  
  mkdir -p ${OPENSHIFT_PYTHON_DIR}template
  
  
  
  # Call the version specific install script
  
  exec ${OPENSHIFT_PYTHON_DIR}usr/versions/${version}/bin/install $version

  So what is the problem ? And how can I solve it ?
  thanks

• extracting header information of video file

  1er juin 2021, par david

  I have some video files that encode them using FFmpeg and produce mp4 files. now I need to extract header information of video files and dump this information (like the size of macroblock, motion vector,...) into a file and use this information for feature extraction. but I do not know how can I extract header information. do you know any software or sth like this for extracting header information. I used JM software and xmltracefile, but it doesn't work and produce lots of errors. if you have any suggestions or tutorials for this issue please let me know. Thank you.