Recherche avancée

Sur d’autres sites (4816)

• Windows Batch - Change the beginning of a path but keep the rest

  21 juin 2014, par o_ren

  I’m running FFMPEG for video encoding.
  I have a batch file which will encode files you drop on it, keeping the file’s original name and copy the encoded files to a specific directory.
  I would like that script to "know" the original’s file path and copy the encoded file to a path relative to it, meaning :
  original file dropped on batch file is in C :\some\folder\show\season\episode\file.mov
  encoded file should be encoded to D :\different\directory\show\season\episode\file.mp4
  The part of the path up until \show is fixed.

  This is what I have so far :
  

  @echo on
  
  
  
  set count=0
  
  for %%a in (%*) do (<br />
  
    if exist %%a (
  
  
  
          md \\specific\path\"%%~na"
  
  
  
          %MYFILES%\ffmpeg.exe -i "%%~a" -vcodec libx264 -preset medium -vprofile baseline -level 3.0 -b 500k -vf scale=640:-1 -acodec aac -strict -2 -ac 2 -ab 64k -ar 48000 "%%~na_500.mp4"
  
          copy "%%~na_500.mp4" "\\specific\path\"%%~na"\%%~na_500.mp4"
  
          copy "%%~na_500.mp4" "\\specific\path\"%%~na"\%%~na_500.mp4"
  
          del "%%~na_500.mp4"

  set /a count+=1

  ) else (
  echo Skipping non-existent %% a
  
  

  Thank you,
  Oren

• combine 4 video with delay side by side using ffmpeg

  9 janvier 2021, par MeTe-30

  I have at least 4 video from video conference crated by meetecho/janus-gateway
  
Janus create two mjr video and audio file for each user, first i merged them into one webm file, then convert all to 500*500 videos.
  
Now i'm trying to combine these videos like mosaic and found this code :

  


  ffmpeg -i 1.webm -i 2.webm -i 3.webm -i 4.webm \
-speed 8 -deadline realtime -filter_complex "[0]pad=2*iw:2*ih[l]; \
[1]setpts=PTS-STARTPTS+428/TB[1v]; [l][1v]overlay=x=W/2[a]; \
[2]setpts=PTS-STARTPTS+439/TB[2v]; [a][2v]overlay=y=H/2[b]; \
[3]setpts=PTS-STARTPTS+514/TB[3v]; [b][3v]overlay=y=H/2:x=W/2[v]; \
[1]adelay=428372|428372[1a]; \
[2]adelay=439999|439999[2a]; \
[3]adelay=514589|514589[3a]; \
[0][1a][2a][3a]amix=inputs=4[a]" \
-map "[v]" -map "[a]" merged.webm


  


  I calculated the delayed times from created dateTime of each file, related to the first video.

  


  my problmes :

  


  


  1. This code is not working ! after minutes of console freezing, it shows this line :

     


     Killed 29 fps=0.1 q=0.0 size= 1kB time=00:04:30.07 bitrate= 0.0kbits/s speed=0.896x

     


  


  2. I didn't find out the meaning of letters before and after overlay, [1v][2v][3v][l][a][b][v]...

     


  


  


• Looking for a free alternative RTSP server for Node.js [closed]

  2 juin 2020, par Maoration

  I'm looking at running my node.js server as an RTSP streaming server, as well as an http server. the ability to get some ffmpeg video output to stream as rtsp to 'localhost' (which will be the server listening), and for multiple clients to request a stream from the server via the rtsp ://... protocol

  



  The most common online implementation is :
https://www.npmjs.com/package/rtsp-streaming-server

  



  However, this is licensed under GPL-3.0, meaning my product would have to be open-source, or I'll be violating the terms of use. I'm afraid thats not possible..

  



  Other common results when searching for a solution are :

  



  https://www.npmjs.com/package/rtsp-server
which just seems to wrap to lower level rtsp protocol messages.

  



  https://www.npmjs.com/package/node-media-server
which provides solutions to many use cases, but I couldnt figure out how to configure it as an RTSP server, or if this would even be possible.

  



  So, any alternatives ? other suggestions ?