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• Merge Audio and Video using ffmpeg - Python Lib [duplicate]

  15 janvier 2021, par badr

  i have tried

  


  import ffmpeg
video = ffmpeg.input('video.mp4')
audio = ffmpeg.input('audio.mp3')
ffmpeg.merge_outputs(video, audio).run()


  


  and it returns

  


  TypeError: Expected incoming stream(s) to be of one of the following types: ffmpeg.nodes.OutputStream; got <class>&#xA;</class>

  


  and i have tried

  


  import ffmpeg
video = ffmpeg.input('video.mp4')
audio = ffmpeg.input('audio.mp3')
ffmpeg.concat(video, audio, v=1, a=1).output('finished_video.mp4').run()


  


  and it returns

  


  FileNotFoundError: [WinError 2] The system cannot find the file specified


  


  also i did try

  


  import subprocess    
subprocess.run("ffmpeg -i video.mp4 -i audio.mp3 -c copy output.mp4")


  


  and it returns

  


  'ffmpeg' is not recognized as an internal or external command


  


  how can i do it right ?

  


• PHP and FFMPEG - Performing intelligent video conversion

  24 décembre 2012, par Andrew

  I have an oddly difficult task to perform. I thought it would be easy, but all my efforts have been fruitless.

  I'm converting videos uploaded to a php script from various formats (.avi, .mpg, .wmv, .mov, etc.) to a single .flv format. The conversion is working great but what I'm having trouble with is the resolution of the videos.

  This is the command I'm currently running (with PHP vars) :

  ffmpeg -i $original -ab 96k -b 700k -ar 44100 -s 640x480 -acodec mp3 $converted

  Both $original and $converted contain the full paths to those files. My problem is that this always converts to 640x480 (like I'm telling it to) even when the source is smaller. Obviously, this is a waste of disk space and bandwidth when the video is downloaded. Also, this doesn't account for input videos being in any aspect ratio other than 4:3, resulting in a "squished" conversion if I upload a 16:9 video.

  There are 3 things I need to do :

  1. Determine the aspect ratio of the original video.
  2. If not 4:3, pad top and bottom with black bars.
  3. Convert to 640x480 if either dimension of the original is larger or a 4:3 aspect ratio relating to the width/height of the original (whichever is closer to 640x480).

  I've run ffmpeg -i on a few videos, but I don't see a consistent format or location to find the original's resolution from. Once I'm able to figure that out, I know I can "do the math" to figure out the right size and specify padding to fix the aspect ratio with -padttop, -padbottom, etc.

• Video conversion online - transloadit http upload

  20 janvier 2015, par user1765661

  So basically I need to watermark a video (with user info) whenever a user requests a download.

  I want to have only the original file on a folder of my website/server, "videos/original.mp4" for example.

  Then if my hosting service provided FFMPEG, I could use it to process all of this.

  The problem is that i cant use ffmpeg on my current hosting provider. So I came acroos transloadit . But can I use this service to host the original video online and send a request of conversion/watermarking without having to upload the same video over and over ?

  I will have to watermark the video for each user that download the video. Of course those will be temp videos, because I will give like 48 hours to download and then delete it, just mantaining the original file.

  Thank you