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• Naming file output moviepy ffmpeg

  21 avril 2020, par Witness

  I am trying to name clips from a moviepy ffmpeg output based on text in dataframe columns.
I can create the clips but am having trouble with the naming as Im not sure how to loop through the list 
and add it to the output file name.

  



  example data frame

  



  import pandas as pd

data = [["Park","Road",4, 10], ["Road","Street", 80, 95], ["Street","Park",120, 132]] 
df = pd.DataFrame(data, columns = ["Origin", "Destination","Start", "End"])

print (df)


  



  Origin| Destination| Start | End

  



  0 | Park | Road | 4 | 10

  



  1 | Road | Street | 80 | 95

  



  2 | Street| Park | 120| 132

  



  Id like the output file to show the Origin and Destination text

  



  videoParkRoad1

  



  videoRoadStreet2

  



  videoStreetPark3

  



  the code I have at the moment

  



  filename="D:\video" + str(i+1) + ".mp4"


  



  returns

  



  video1

  



  video2

  



  video3

  



  Hope this makes sense

  



  Thanks

  


• How to get stream data from producer on server side to pipe to fluent-ffmpeg

  6 juin 2023, par Nicolas Ferrari

  I’ve developped a live streaming app using mediasoup but I’m having trouble understanding how data flows from producer to consumer on the server side.
I’d like to get the producer video stream on the server and process it with fluent-ffmpeg library.

  


  I tried trace events, I looked for data events, I found old posts about “rtppacket” or “rtp” or other events that don’t appear in the documentation.

  


  I also tried to use the mediasoup-demo github code as help but it didn’t work, and I don’t want to use ffmpeg with shell commands but with the fluent-ffmpeg library.

  


  Maybe I missed something in the documentation. If so, can you point me in the right direction please ?

  


  TL ;DR : How can I access the streaming data being sent by the producer on the server side with mediasoup ?

  


  Thanks in advance for your help :)

  


• FFMPEG scale, zoom, and concat filter

  2 août 2018, par Karate_Dog

  I am using ffmpeg for android to produce video with mp4 format. I’m having trouble getting this command to work in FFMPEG, basically I am trying to add two images, scale them, add zoom effect, and finally concat the result into one video file. I have done something like this :

  ffmpeg 
  
  -t 8 -i image1.png
  
  -t 8 -i image2.png
  
  -filter_complex
  
  [0:v]scale=720:720[scl1]; [1:v]scale=720:720[scl2];
  
  [scl1]zoompan=z=if(lte(zoom, 1.0), 1.55, max(1.001, zoom - 0.0010)):d=205, fade=t=out:st=7:d=1[v0];
  
  [scl2]zoompan=z=if(lte(zoom, 1.0), 1.55, max(1.001, zoom - 0.0010)):d=205, fade=t=in:st=0:d=1,fade=t=out:st=7:d=1[v1];
  
  [v0][v1]concat=n=2:v=1:a=0, format=yuv420p[v] -map [v] outputVideo.mp4

  Been tinkering with this command for a while but still can’t get it to work and I got error :

  Input link in1:v0 parameters (size 1280x720, SAR 0:1) do not match the corresponding output link in0:v0 parameters (1280x720, SAR 45:31)
  
  [Parsed_concat_7 @ 0xf0d77600] Failed to configure output pad on Parsed_concat_7