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• docker service create : How to deal with custom or unknown parameter needed by linuxserver/ffmpeg image ?

  24 mai 2022, par Mike

  I am new to docker and docker swarm and started dockerizing several services and am trying to get them running as docker swarm services. I ran into a road block with the linuxserver/ffmpeg image :

  


  

  1. it uses a —device parameter which is not implemented in create service

  


  2. it expects several custom parameters to pass them to the ffmpeg encoder

  


  


  From my research up to now I assume that passing parameters is not implemented in docker create service, but maybe you can think of a workaround ? (unfortunately the image does not process environment variables, or at least they are not documented)

  


  This is how I start dockerized ffmpeg (working fine in standalone mode) :

  


  docker run -d /
  
—network="host" /
  
—device=/dev/video0 :/dev/video0 / ### error : unknow flag
  
—name ffmpeg_streamer /
  
—restart always -it /
  
-v $(pwd)/video :/video /
  
linuxserver/ffmpeg / ### custom parameters below here
  
-stream_loop /
  
-1 -re -nostdin /
  
-i "/video/test.avi" /
  
-f pulse /
  
-vcodec libx264 /
  
-preset:v veryfast /
  
-b:v 400k /
  
-f flv rtmp ://localhost:1935/live/streamkey

  


  Many thanks for looking into this !

  


• Error and understanding issue : using ffmpeg to real time publish FLV file to Red5 and real time download FLV from Red5

  29 août 2014, par kajarigd

  OS : Windows 8, RTMP Server : Red5, Video File format : FLV, I want to : Read/Write FLV from and to Red5 by live streaming.

  To publish FLV file from local I am using this command at Command Line :

  ffmpeg -re -i input.flv -acodec copy -vcodec copy -f flv rtmp://ocalhost/oflaDemo/streams

  My understanding : This command will upload input.flv to the server location C :\Program Files\red5\webapps\oflaDemo\streams. So, after the command is done running, I expect in this server location a new file input.flv will be created. Is this correct ?

  When I am running this command I am getting the following error and no file is getting created on the server side :

  [flv @ 03c6a660] Failed to update header with correct duration.
  
  [flv @ 03c6a660] Failed to update header with correct filesize.
  
  frame= 1567 fps= 24 q=-1.0 Lsize=    3064kB time=00:01:05.43 bitrate= 383.6kbits
  
  /s
  
  video:2232kB audio:767kB subtitle:0kB other streams:0kB global headers:0kB muxin
  
  g overhead: 2.183349%

  Can you help me understand what I am doing wrong ? What should be correct command in this case to achieve what I want ?

  Now, I am using the following command to livestream read a FLV file from the server into my local :

  ffmpeg -re -i rtmp://localhost/oflaDemo/streams/hobbit_vp6.flv -c copy dump.flv

  My understanding : File hobbit_vp6.flv will be downloaded into my local directory and will get saved as dump.flv. And this will be live streaming. This will be like, recording a video stream from the server. Is this correct ?

  When I am running this command I am getting the following error and no file is getting created on the local :

  Closing connection: NetStream.Play.StreamNotFound rtmp://localhost/oflaDemo/streams/hobbit_vp6.flv: Unknown error occurred

  Can you help me understand what I am doing wrong ? What should be correct command in this case to achieve what I want ?

• (FFmpeg) VP9 Vaapi encoding to a .mp4 or .webm container from given official ffmpeg example

  13 mai 2021, par User800222

  I'm trying to implement vp9 hardware acceleration encoding process. I followed ffmpeg offical github's example (Here -> vaapi_encode.c).

  



  But given example only save a .yuv file to .h264 file, I would like to save the frames to either .mp4 or .webm container. And having the ability to control the quality, and etc.

  



  I'm not reading frames from a file, I'm collecting frames from a live feed. When having full 5 secs of frames from the live feed, encode those frames using vp9_vaapi to a 5 secs .mp4 file.

  



  I'm able to save all the 5 secs frames from my live feed to a .mp4 or .webm file, but they couldn't be played correctly (more precisely : keep loading, and I open).

  



  The result from the official site's example :

  



  

  



  The cpu encoded vp9 .mp4 file result :

  



  

  



  Edit :
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