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• Can't obtain information with ffmpeg to Smooth Streaming Manifest file

  4 mars 2015, par Alberto

  I’m trying to get details for a stream of protocol Microsoft Smooth Streaming, with ffmpeg tools (ffprobe and ffplay) but when I run the next command :

  ffprobe -i http://b31282.cdn.telefonica.com/31282/Manifest

  I obtain this :

  http://b31282.cdn.telefonica.com/31282/Manifest: Invalid data found when processing input

  I assume that this Manifest file is correct and complies with standards of Smooth Streaming . This is a brief extract of Manifest file :

  <smoothstreamingmedia majorversion="2" minorversion="0" duration="0" timescale="10000000" islive="TRUE" lookaheadfragmentcount="2" dvrwindowlength="6000000000" canseek="TRUE" canpause="TRUE">
  
    <protection>
  
      <protectionheader systemid="9a04f079-9840-4286-ab92-e65be0885f95">oioAAAIAAQCUAjwAV...</protectionheader>
  
    </protection>
  
    <streamindex type="audio" language="esp" subtype="" chunks="0" timescale="10000000" url="QualityLevels({bitrate})/Fragments(audio_esp={start time})"></streamindex>
  
    <streamindex type="video" language="" subtype="" chunks="0" timescale="10000000" url="QualityLevels({bitrate})/Fragments(video={start time})"></streamindex>
  
  </smoothstreamingmedia>

  Is a Fedora 21 and ffmpeg version and configuration is :

  ffmpeg version git-2015-02-27-d490b26
  
  configuration: --enable-gpl --enable-nonfree --enable-libfdk_aac --enable-libopus --enable-libvorbis --enable-libvpx --enable-libx264
  
  libavutil         54. 19.100         
  
  libavcodec        56. 26.100          
  
  libavformat       56. 23.105           
  
  libavdevice       56.  4.100                   
  
  libavfilter        5. 11.102          
  
  libswscale         3.  1.101        
  
  libswresample      1.  1.100           
  
  libpostproc       53.  3.100 

  PD : I prefer use only ffmpeg tool

  Thanks for all

• Nginx - RTMP module - VLC wont start

  15 janvier, par Diana Sari

  Why my vlc only show background colour ?
did i miss something important ?

  


  Im running Nginx with RTMP module on
Linux DESKTOP-RJHVE83 5.15.167.4-microsoft-standard-WSL2 #1 SMP x86_64 GNU/Linux
Kali release : 2024.4 (kali-rolling) WSL on Windows 10 Pro

  


  Screenshot of my VLC

  


  /etc/nginx/nginx.conf
i add this from the default :

  


  rtmp {
    server {
        listen 1935;
        chunk_size 4096;
  allow publish 127.0.0.1;
  deny publish all;

        application live {
            live on;
            record off;
        push rtmp://127.0.0.1/live/stream;
        }
    }
}


  


  Stream my mp4 file using ffmpeg :

  


  


  Kali$> ffmpeg -re -i file.mp4 -c:v libx264 -c:a aac -flvflags no_duration_filesize -f flv rtmp ://localhost:1935/live/

  


  


  VLC on the same machine on WIndows 10 Pro
Open Network Protocol : rtmp ://192.168.1.1:1935/live/

  


  The Vlc Show only Background colour (attach)

  


  -Access.log
172.27.96.1 [14/Jan/2025:14:28:02 +0700] PLAY "live" "" "" - 556 1612142 "" "LNX 9,0,124,2" (25s)
127.0.0.1 [14/Jan/2025:14:28:34 +0700] PUBLISH "live" "" "" - 4573293 529 "" "FMLE/3.0 (compatible ; Lavf61.7." (1m 3s)
172.27.96.1 [14/Jan/2025:14:29:47 +0700] PLAY "live" "" "" - 365 1578527 "" "LNX 9,0,124,2" (1m 43s)

  


  -Error.log
Blank

  


  i tried this on :
Ubuntu Focal 20.04.6 (WSL)
Ubuntu Noble24.04.1 LTS (WSL)
id read 2 tutorials
https://www.hostinger.com/tutorials/how-to-set-up-a-streaming-server
https://www.digitalocean.com/community/tutorials/how-to-set-up-a-video-streaming-server-using-nginx-rtmp-on-ubuntu-20-04

  


• What is a correct way of ffmpeg dshow webcamera properties save and load ?

  12 juin 2020, par C0oo1D

  Command (PS == Windows PowerShell) :

  



  PS D:\> ffmpeg -f dshow -show_video_device_dialog True -video_device_save some_profile.txt -i 'video=MicrosoftR LifeCam Studio(TM)'


  



  FFmpeg Header :

  



  ffmpeg version git-2020-06-04-7f81785 Copyright (c) 2000-2020 the FFmpeg developers
  built with gcc 9.3.1 (GCC) 20200523
  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf
  libavutil      56. 49.100 / 56. 49.100
  libavcodec     58. 90.100 / 58. 90.100
  libavformat    58. 44.100 / 58. 44.100
  libavdevice    58.  9.103 / 58.  9.103
  libavfilter     7. 84.100 /  7. 84.100
  libswscale      5.  6.101 /  5.  6.101
  libswresample   3.  6.100 /  3.  6.100
  libpostproc    55.  6.100 / 55.  6.100


  



  Error after OK/Cancel/Close in camera settings dialog (empty file was created). Also tried without dialog - the same problem :

  



  [dshow @ 0715de40] Query for IPersistStream failed.
video=Microsoft® LifeCam Studio(TM): I/O error


  



  I assume that problem at the camera side, but I don't exclude my blindness (didn’t find any examples of saving settings or required command options in the documentation).

  



  Perhaps there is another way to save / load webcamera properties ?