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• How to send video to the iis web directory

  26 février 2019, par user9932893

  I already have built the IIS Web. But, I have no clues about how to send mp4 video format from another computer via IP address to the server root directory.
  Then, I think the FFmpeg software will useful to me. But, I have a lot of troubles on those instructions. Have any solution ?
  Please give some suggestions, I will very thank you.

• restream the rtmp stream by using ffmpeg and nginx-rtmp-module

  30 octobre 2014, par Stanislav

  This is my current rtmp configuration for localhost, everything works well

    # Transcoding (ffmpeg needed)
  
  
  
     application big {
  
  
  
         live on;
  
  
  
     exec /usr/local/bin/ffmpeg -re -i rtmp://localhost:1935/$app/$name -vcodec flv -acodec copy -f flv rtmp://localhost:1935/anotherapp/${name};
  
  
  
     }
  
  
  
  application anotherapp {
  
         live on;
  
    }

  This is what I am trying to achive

    # Transcoding (ffmpeg needed)
  
  
  
     application big {
  
  
  
         live on;
  
  
  
     # rtmp://localhost:1935/$app/$name  -> Receive this address dynamically from outside, for example the address will be rtmp://142.204.134.93/red5app/12345
  
     # rtmp://localhost:1935/anotherapp/${name};  -> and create new stream on my server with the same name. 
  
     # So this will be the result:
  
  
  
     exec /usr/local/bin/ffmpeg -re -i  rtmp://142.204.134.93/red5app/12345 -vcodec flv -acodec copy -f flv rtmp://localhost:1935/anotherapp/12345;
  
  
  
     }
  
  
  
  application anotherapp {
  
         live on;
  
    }

  Thank you very much in advance.

• Can ffmpeg write metadata encoder when transcoding alac/flac to aac audio file ?

  11 juin 2022, par David I

  I have a collection of alac and flac files from Bandcamp and an ffmpeg instance compiled with libfdk_aac https://trac.ffmpeg.org/wiki/CompilationGuide/Centos#libfdk_aac and am trying to convert these to lossy audio aac files for non-critical listening.

  


  With ffmpeg -i Liholesie\ -\ Shamanic\ Twilight\ -\ 09\ Gray\ Wings.m4a -c:a libfdk_aac -vbr 4 -c:v copy 09_Gray_wings_vbr4.m4a an expected aac .m4a audio file is produced, album art included, works well. There's one slight detail missing :

  


  During the ffmpeg conversion process ffmpeg says :

  


  Output #0, ipod, to '09_Gray_wings_vbr4.m4a':
  Metadata:
    major_brand     : M4A 
    minor_version   : 512
    compatible_brands: M4A isomiso2
    title           : Gray Wings
    artist          : Liholesie
    album_artist    : Liholesie
    album           : Shamanic Twilight
    comment         : Visit https://liholesie.bandcamp.com
    date            : 2021
    track           : 9
    encoder         : Lavf59.24.100
  Stream #0:0: Video: mjpeg (Baseline), yuvj444p(pc, bt470bg/unknown/unknown), 700x700 [SAR 72:72 DAR 1:1], q=2-31, 90k tbr, 90k tbn (attached pic)
  Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, s16 (default)
    Metadata:
      handler_name    : SoundHandler
      vendor_id       : [0][0][0][0]
      encoder         : Lavc59.33.100 libfdk_aac 
..




  


  and the file produced looks like that when ffprobed except that the Metadata : encoder field is missing :

  


  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '09_Gray_wings_vbr4.m4a':
  Metadata:
    major_brand     : M4A 
    minor_version   : 512
    compatible_brands: M4A isomiso2
    title           : Gray Wings
    artist          : Liholesie
    album_artist    : Liholesie
    album           : Shamanic Twilight
    date            : 2021
    encoder         : Lavf59.24.100
    comment         : Visit https://liholesie.bandcamp.com
    track           : 9
  Duration: 00:06:57.78, start: 0.000000, bitrate: 155 kb/s
  Stream #0:0[0x2](und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 152 kb/s (default)
    Metadata:
      handler_name    : SoundHandler
      vendor_id       : [0][0][0][0]
  Stream #0:1[0x0]: Video: mjpeg (Baseline), yuvj444p(pc, bt470bg/unknown/unknown), 700x700 [SAR 72:72 DAR 1:1], 90k tbr, 90k tbn (attached pic)


  


  Is there a way to write the encoder field in the Metadata section when transcoding (or is "encoder" not supported for aac m4a ? That would be weird since ffmpeg says what it says when specifying output during transcoding) .

  


  Any hints on how to write a self-defined text to said tag during transcoding are also welcome.