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• how to download m3u8 with ffmpeg ? [hls prompts : Unable to open key file skd:xxxxxxx] [closed]

  18 octobre 2024, par Mam Ghagh

  There is a m3u8 manifest like :

  


  #EXTM3U
#EXT-X-VERSION:5
#EXT-X-TARGETDURATION:7
#EXT-X-PLAYLIST-TYPE:VOD
#EXT-X-KEY:METHOD=SAMPLE-AES,URI="skd://xxxxxx",IV=0xXXXXXX,KEYFORMAT="com.apple.streamingkeydelivery",KEYFORMATVERSIONS="1"
#EXTINF:6,
https://someurl.com/index_1_0.ts
#EXTINF:6,
https://someurl.com/index_2_0.ts
...


  


  which is available on https://someurl.com/my.m3u8
  
So, When I executed ffmpeg command
  
ffmpeg -i "https://someurl.com/my.m3u8" -c copy out.mp4
  
the following message appeared
  
[hls @ 000002de75f89bc0] Unable to open key file skd://xxxxxx
  
Now the question is, What is the key and How should I address it ?

  


• Getting very high latencies while syncing live folder data to cloud storage [closed]

  28 juillet 2024, par baloda

  I am working on custom HLS Live transcoding implementation in GCP with k8s pods. I have tried s3fs, rclone, GCS-FUSE with sidecar solutions to sync data into s3/GCS. But getter very high latency to sync data to respective storage origin. Can someone suggest how i can reduce this latency ?

  


  System info : K8s Pod in GCP
Transcoding Tools : FFmpeg
Storage Origin : GCS, S3
Feed Type : live rtmp
Output : HLS with .m3u8 manifest & 4 sec .ts chunks

  


  

  1. GCS-Fuse sidecar :
with this transcoding pipeline is not able to use full cpu and it limit ffmpeg cpu used to 0.4 core

  


  2. Temp output directory for ffmpeg output & rclone ffmpeg output with GCS-Fuse sidecar mounted folder :
This implantation allowed ffmpeg to consume cpu till 10 core but rclone does not work as intended. It syncs data randomly. Tried a couple rsync optimisation and checksum options. but did not got expected result.

  


  3. s3fs :
This takes admin privileges. did not able to excute it for now. But i am assuming it will give similar result to GCS-Fuse

  


  


• Error decoding stream invalid data found

  10 avril 2018, par bluemoon odd

  I have a software that first extract a video to jpg photo
  than we can insert any text or image auto in all jpg files
  extracted before than i try to rebuild the video with that images but
  its seems my frames extracted after to insert the text on it and re save the each file again with string option so i will have the output 0 , 1, 2 , 3 , etc.
  But wen i try to rebuild the video its look like the photo are not well encoded, how can i solve this error
  And Here is the image of the ffmpeg error
  ffmpeg error
  this is the code i use to rebuild the video with ffmpeg

  Public Class Form3
  
  Dim frame As Long 'individual frames
  
  Dim tempdir As String = "C:\mediapubisert\" ' images temp directory
  
  
  
  Private Sub SaveFileDialog1_FileOk(sender As Object, e As System.ComponentModel.CancelEventArgs) Handles SaveFileDialog1.FileOk
  
      Dim args As String 'declare args
  
      args = "-r 1/.1 -i " & tempdir & "\%01d.jpg -c:v libx264 -r 30 -pix_fmt yuv420p " & Chr(34) & SaveFileDialog1.FileName & Chr(34) 'set ffmpeg arguments
  
      Dim proc As New Process
  
      Dim proci As New ProcessStartInfo
  
      proci.FileName = My.Application.Info.DirectoryPath & "\ffmpeg.exe"
  
      proci.Arguments = args
  
      proci.WindowStyle = ProcessWindowStyle.Hidden
  
      proci.CreateNoWindow = True
  
      proci.UseShellExecute = False
  
      proc.StartInfo = proci
  
      proc.Start()
  
      Do Until proc.HasExited = True
  
          Me.Text = "Saving"
  
      Loop
  
      Me.Text = "Media Pub Insert"
  
  
  
      MsgBox("Done")
  
  
  
      'IO.Directory.Delete(tempdir, True)
  
  End Sub
  
  
  
  Private Sub renameFilesInFolder()
  
      Dim sourcePath As String = "C:\mediapubisert\"
  
      Dim searchPattern As String = "*.jpg"
  
      Dim i As Integer = 0
  
      For Each fileName As String In Directory.GetFiles(sourcePath, searchPattern, SearchOption.AllDirectories)
  
          File.Move(Path.Combine(sourcePath, fileName), Path.Combine(sourcePath, "" & i & ".JPG"))
  
          i += 1
  
      Next
  
  End Sub
  
  
  
  Private Sub Form3_Load(sender As Object, e As EventArgs) Handles MyBase.Load
  
      If (Not System.IO.Directory.Exists(tempdir)) Then
  
          System.IO.Directory.CreateDirectory(tempdir)
  
      End If
  
      renameFilesInFolder()
  
  End Sub
  
  
  
  Private Sub Timer1_Tick(sender As Object, e As EventArgs) Handles Timer1.Tick
  
  
  
  End Sub
  
  
  
  Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
  
      SaveFileDialog1.ShowDialog()
  
  End Sub
  
  
  
  
  
  Private Sub Button2_Click(sender As Object, e As EventArgs) Handles Button2.Click
  
      renameFilesInFolder()
  
  End Sub
  
  
  
  End Class