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• Accord.VIdeo.FFMPEG the type or namspace name 'FFMPEG' does not exist

  26 mars 2022, par Tobias Schober

  I am trying to make a simple C# console app (later in WinForms) in Visual Studio which converts images into a video.
I tried it with AForge.Video.FFMpeg but it always said 'Could not load file or assembly...wrong format' even though i had just .jpg.
My problem now is that i cant work with this libaray because i cant use it. I installed it over NuGet and have already tried .NET Core 3.1 and .NET 5.0 and diffrent versions of Accord.Video.FFMPEG.
I also tried changing to x64 and x86.
What am i doing wrong or am missing ? Or is there any other solution ?

  


• Windows FFMPEG concat from list and log each file inputted into to ffmpeg [closed]

  4 janvier 2021, par hammer head down

  Ok i have a working batch filr, where I grab from a text file a list of videos to concat as such

  


  ffconcat version 1.0
file 'dan_Ep_01HardWater.ts'
file 'dan_Ep_02GoldieTheGoldfish.ts'
file 'list2.txt


  


  I then feed that to ffmpeg and display on ffplay at the same time using this code :

  


  bin\ffmpeg -hide_banner -loglevel quiet -report -stats -re -f concat -safe 0 -stream_loop -1 -i %list% -flags +global_header -auto_convert 1 -c:v libx264 -bsf:v h264_mp4toannexb -c:a aac -b:a 128k -ac 2 -ar 44100 -bsf:a aac_adtstoasc -preset veryfast -b:v 1984k -maxrate 1984k -bufsize 3968k -tune zerolatency -vf "pp=hb/vb/dr/fq|8,crop=in_w-20:in_h-40,scale=960:540:flags=lanczos,setsar=1,format=yuv420p,eq=gamma=0.95" -g 50 -fflags +genpts -map 0:v -map 0:a -f tee "[select=v,a:movflags=+faststart]%stream%|[f=flv]%video%|[f=nut]pipe:" | bin\ffplay -hide_banner -loglevel 0 pipe:  -window_title "Stream Monitor 1.0 - (powered by FFPlay)  --   NOTE: closing me stops your streaming!" -x 640 -y 480  -sync audio -autoexit -exitonmousedown -autorotate


  


  I know some variables are not showing from batch file but I think you get the point if not i can add a link to maybe pastebin with full batch file

  


  So this works great but i want o be able to log which file that ffmpeg has just worked on or is working on to a log file.

  


  because i am piping to ffplay which i do NOT want to change took me too long to get it working lol plus its valuable

  


  the reason for doing this is when i am creating my next list.txt to feed to FFmpeg i do not want to do the same file twice.

  


  im guessing cause i am using windows it will be some extra work in pure Batch but the first step is to get the file info to a text file

  


  I cant use > out.txt 2> err.txt is it possible to create another pipe ?

  


  I thought of using ffprobe and pipeing to ffmpeg but couldn't find any info on how to do that either, abt

  


  I'm just lost and I can NOT find any info on the web, I hope I asked correctly here. if not please explain what I did wrong b4 downvoting or other wise. thanks

  


• Python, FFMPEG : Redirecting output of FFMPEG subprocess call to a string

  31 décembre 2019, par user1452030

  I’ve managed to run an FFMPEG command using the subprocess module as shown below :

  output = subprocess.check_output(command, shell=True)

  This works fine, but it prints the verbose FFMPEG output to console. The program I’m writing is supposed to run for hundreds/thousands of files in a batch and I don’t want detailed outputs for every file processed, unless the user chooses to do so. Can I redirect the console outputs and errors to strings, so that I can decide when I should and shouldn’t print them ?

  This might be lame, but I tried the following snippet :

  outputBuffer = BytesIO()
  
  output = subprocess.check_output(command, shell=True, stdout=outputBuffer)

  But it gave me the following error :

  ValueError: stdout argument not allowed, it will be overridden.

  I saw other examples where the POpen interface was used, but given that I’m not communicating with the external command as it is running, and that I need to run this for a large number of items, I’d prefer something simpler, if possible.

  Thanks in advance !

  Note : I’ve found lots of questions in this broad topic, but I couldn’t find anything perfectly relevant to my situation.