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• python modules ffmpeg and ffprobe are installed but youtube-dl not able to find

  12 avril 2022, par Akshay Hiremath

  I'm using python 3.8 on MacOS Big Sur

  


  I installed python module package for youtube-dl with

  


  pip3 install -upgrade youtube-dl


  


  I wanted to do post processing on the content downloaded so I installed python packages ffprobe and ffmpeg.

  


  pip3 install ffprobe
Collecting ffprobe
  Downloading https://files.pythonhosted.org/packages/95/9c/adf90d21108d41f611aa921defd2f2e56d3f92724e4b5aa41fae7a9972aa/ffprobe-0.5.zip
Installing collected packages: ffprobe
  Running setup.py install for ffprobe ... done
Successfully installed ffprobe-0.5

pip3 install ffmpeg
Collecting ffmpeg
  Downloading https://files.pythonhosted.org/packages/f0/cc/3b7408b8ecf7c1d20ad480c3eaed7619857bf1054b690226e906fdf14258/ffmpeg-1.4.tar.gz
Installing collected packages: ffmpeg
  Running setup.py install for ffmpeg ... done
Successfully installed ffmpeg-1.4


  


  pip3 list 
Package    Version   
---------- ----------
ffmpeg     1.4       
ffprobe    0.5           
youtube-dl 2021.12.17 


  


  Still it is complaining can't find ffprobe and ffmpeg :

  


  youtube_dl.utils.DownloadError: ERROR: ffprobe/avprobe and ffmpeg/avconv not found. Please install one.


  


  I see both packages in /Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/

  


  Trying to figure out what am I doing wrong. Many other answers to similar questions on SFO are suggesting installing these packages in the OS using brew etc. but in my case "I want to do everything through python". So shouldn't just installing python modules be enough ?

  


• Error while opening encoder stream in ffmpeg android [duplicate]

  9 octobre 2018, par Vivek Mishra

  This question already has an answer here :

  • ffmpeg add watermark libx264 width not divisible by 2 (853x480)
    
    1 answer
    
  • FFMPEG (libx264) “height not divisible by 2”
    
    6 answers
    

  I am trying to overlay a video on an image using the below command.

  String[]sepCmd=new String[]{"-loop","1","-i",uri,"-i",overlayUri,"-filter_complex","[1:v]colorkey=0x000000:0.5:0.5[ckout];[0:v][ckout]overlay[out]","-map","[out]","-acodec","libfaac","-c:a", "copy",outputPath};

  When I run the above command, I get the error as shown below

   Input #0, png_pipe, from '/storage/emulated/0/snowflake.png':
  
    Duration: N/A, bitrate: N/A
  
      Stream #0:0: Video: png, gray(pc), 304x345 [SAR 11811:11811 DAR 304:345], 25 fps, 25 tbr, 25 tbn, 25 tbc
  
  Input #1, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/emulated/0/FilterVideos/vintage1.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: isomiso2avc1mp41
  
      encoder         : Lavf58.12.100
  
    Duration: 00:00:05.08, start: 0.000000, bitrate: 447 kb/s
  
      Stream #1:0(und): Video: h264 (avc1 / 0x31637661), yuv420p, 640x360 [SAR 1:1 DAR 16:9], 306 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default)
  
      Metadata:
  
        handler_name    : VideoHandler
  
      Stream #1:1(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 129 kb/s (default)
  
      Metadata:
  
        handler_name    : SoundHandler
  
  Stream mapping:
  
    Stream #0:0 (png) -> overlay:main
  
    Stream #1:0 (h264) -> colorkey
  
    overlay -> Stream #0:0 (libx264)
  
  Press [q] to stop, [?] for help
  
  [swscaler @ 0xee29d000] deprecated pixel format used, make sure you did set range correctly
  
  [swscaler @ 0xee2a8000] No accelerated colorspace conversion found from yuv420p to argb.
  
  [libx264 @ 0xf125ba00] height not divisible by 2 (304x345)
  
  Error initializing output stream 0:0 -- Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height
  
  Conversion failed!

• Error scaling a video using libav filters [duplicate]

  8 décembre 2016, par S B

  This question already has an answer here :

  • FFMPEG (libx264) “height not divisible by 2”
    
    4 answers
    

  I need to batch-process a bunch of videos to scale their height to 240 keeping the aspect ratio same. The command that gets the job almost done is :

  $ avconv -threads 4 -ss 0.0 -i input.avi \
  
  -map 0:0,0:0 -map 0:1,0:1 -vf "scale=-1:240" -y -f mpegts \
  
  -async -1 -vcodec libx264 -vcodec libx264 -flags2 +fast \
  
  -flags +loop -g 30 -bufsize 1024k \
  
  -b 200k -bt 220k -qmax 48 -qmin 2 -r 20 -acodec libmp3lame \
  
  -ab 44k -ar 44100 -ac 2 output.ts

  The interesting part, as you can see, is -vf "scale=-1:240"

  This works on videos where the scaled output width turns out to be an even number. Otherwise, I get the following error message :

  [libx264 @ 0x7fc4f8821e00] width not divisible by 2 (341x240)

  How do I overcome this ?

  Edit :
  As per this link, I tried using -vf "scale=trunc(oh/a/2)*2:240" which outputs a movie but the resulting video quality is really poor.

  Edit #2 :
  This is not a duplicate as it’s wrongly marked. This question was posted much earlier than the other one.