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• rtmpproto : Lengthen the filename buffer when receiving streams

  13 octobre 2016, par Martin Storsjö

  rtmpproto : Lengthen the filename buffer when receiving streams
  Some applications such as Adobe FME append lots of parameters
  
  here, making it easily overflow the current limit.
  Signed-off-by : Martin Storsjö <martin@martin.st>
  

  • [DBH] libavformat/rtmpproto.c

• How to merge .ts files from a DLINK security camera losslessly ?

  13 juin 2022, par anjchang

  I have >1000s of small .ts files from a DLINK camera of a theft that occured. I first tried to merge the ts files into bigger files so that I could look for the audio where the relevant event occurred. Then in Premiere I looked for the highest sustained audio peaks (it was someone using a saw to cut out a catalytic converter). Then, I isolated the relevant 200 files where things happened on the timeline. But now, I want to export the 20 minutes of the incident with the least compression (or no compression). Apparently Adobe Premiere can export the whole timeline containing these clips, but will compress them. I have not edited any of the files, so I don't want any rendering. I just want them strung together in a "well-known" format so I can send the files to the insurance company and authorities.

  


  I used an answer from here but there were audio gaps. Some of the files had no audio, causing the problem when I first merged the files with :

  


   for i in `\ls *.ts | sort -V`; do echo "file '$i'"; done >> mylist.txt;ffmpeg -f concat -i mylist.txt -c copy -bsf:a aac_adtstoasc video.mp4


  


• What is the equivalent of ImageMagick's -liquid-rescale in FFMPEG

  22 février 2024, par Mouaad Abdelghafour AITALI

  I'm interested in the Content-Aware Scale effect. So far, the only way to achieve it is by using ImageMagick (distortion algorithm)

  


  

  


  cmd = f"magick {curFramePath}\

-liquid-rescale {100-DISTORT_PERCENTAGE}x{100-DISTORT_PERCENTAGE}%!\

-resize {videoSize[0]}x{videoSize[1]}\! {resFramePath}"


  


  I would love to achieve comparable results using only FFMPEG.

  


  Thank you for your help