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• How to use my FFMPEG code in Automator (Mac)

  23 juin 2023, par 3EK

  I have an ffmpeg code that converts .mov files to .mp4 files. I would like to set up a 'watch folder' system on my mac, so that when I drop files into a specific folder, it will automatically convert the file using my FFMPEG code.

  


  I have tried to add my FFMPEG code into the Automator app (mac) as a shell script, but it did not work and gave me the error *"The action “Run Shell Script” encountered an error : “zsh:3 : no matches found : .mov”"

  


  The FFMPEG code that I am using is...

  


  for i in *.mov; do ffmpeg -ss 4 -i "$i" -c:v libx264 -preset ultrafast -b:v 20M -vf format=yuv420p -c:a aac "mp4/${i%.*}.mp4"; done;


  


  Is anyone able to help me work out why this is not working please ?

  


  Greatly appreciated !

  


  Best,
John

  


• python serve mp4 files securely [closed]

  4 juin 2021, par mariam_gvikvarxar

  I am building video serving service on python (django framework). The main requirement is that users should not be able to see mp4 direct link.

  


  I was thinking about generating .ts files with subprocess using ffmpeg

  


  like this :

  


  import subprocess

infile = 'video.ts'
outfile = 'video.mp4'

subprocess.run(['ffmpeg', '-i', infile, outfile])


  


  but as I guess it will take a lot of resources (in a RAM) if multiple users try to watch videos

  


  How would you solve this problem if you were me ?

  


  thanks in advance

  


• Two rtsp streams to youtube on a Pi3

  19 mars 2020, par Sébastien Bonaimé

  I want to stream two rtsp camera from my birdbox to youtube from my raspberry pi 3 with the entrance in Pip (picture in picture) on top left. I don’t need sound.

  192.168.1.13 can do 30 fps with sound that I don’t need
  192.168.1.31 is only 12 fps without sound

  I have some problems of lag between the two camera on the youtube stream which I think is due to the different fps. I compile ffmpeg with h264. Here is what I did

  ffmpeg -re -f lavfi -i anullsrc -rtsp_transport udp -thread_queue_size 1000k -i rtsp://admin:123@192.168.1.13:554 -i rtsp://admin:@192.168.1.31:554 -filter_complex "[1]scale=iw/4:ih/4[pip]; [2][pip] overlay=0:0"   -framerate 13  -bufsize 512k  -b:v 1500k -threads 4 -q:v 3  -c:v h264_omx  -c:a aac -f flv rtmp://a.rtmp.youtube.com/live2/XXX-XXXX-XXX

  and here are the errors

  [h264 @ 0x20ddd30] error while decoding MB 69 67, bytestream -6rate=1589.2kbits/s dup=0 drop=6 speed=0.997x
  
  [h264 @ 0x20ddd30] concealing 100 DC, 100 AC, 100 MV errors in I frame
  
  rtsp://admin:@192.168.1.31:554: corrupt decoded frame in stream 0te=1589.0kbits/s dup=0 drop=6 speed=0.997x
  
  [rtsp @ 0x1f2cea0] max delay reached. need to consume packetbitrate=1589.2kbits/s dup=0 drop=6 speed=0.997x
  
  [rtsp @ 0x1f2cea0] RTP: missed 35 packets
  
  [h264 @ 0x2099580] error while decoding MB 60 30, bytestream -6rate=1589.3kbits/s dup=0 drop=6 speed=0.997x
  
  [h264 @ 0x2099580] concealing 4549 DC, 4549 AC, 4549 MV errors in I frame
  
  rtsp://admin:@192.168.1.31:554: corrupt decoded frame in stream 0
  
  [rtsp @ 0x1f2cea0] max delay reached. need to consume packetbitrate=1588.9

  What can I do to improve the stream ? When a bird enter the box, there is also a quality problem when the image is changing and some lagging.
  You can have a look here
  https://www.youtube.com/watch?v=iisbinyvSFk&feature=youtu.be

  Thank you