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• FFMPEG not working as intended in a bash script

  9 mai 2024, par rcp

  I'm trying to get the mean volume of a recording and the echo the expected value. When I do it line by line, everything works fine, but as soon as I execute it in a bash script, I have a problem with the FFMPEG line. I identified the problem, which is that &> analysis is not doing anything for some reason and instead of saving the output in a file it prints it in the shell.

  


  I don't know how to fix it since it works fine when not in a script.

  


  #!/bin/bash

# Record sound
sh aud2.sh

# Run ff.sh in the background to analyze volume and save results
ffmpeg -i test.wav -af "volumedetect" -vn -sn -dn -f null - &> analysis.vol

# Extract mean_volume and save to mean.vol
grep "mean_volume" analysis.vol > mean.vol

# Extract numerical value and save to val.vol
sed -n 's/^.*mean_volume: \([-0-9.]*\) dB.*/\1/p' < mean.vol > val.vol

# Read the value from val.vol into the variable volume
volume=$(code>

  


  Expected output when line by line

  


  Actual output in bash script

  


  I expected the shell output to be saved in a file.

  


• fate : Add test for mss1 codec

  18 avril 2016, par Petru Rares Sincraian

  fate : Add test for mss1 codec
  Signed-off-by : Michael Niedermayer <michael@niedermayer.cc>
  

  • [DH] tests/fate/microsoft.mak
  • [DH] tests/ref/fate/mss1-pal

• powershell output to .txt file wont print the for loop

  15 avril 2020, par ilham zacky

  I have some audio, video & jpg files.
I am using ffmpeg to get all the duration

  



  all thing works perfect, I have got all durations from a for loop and set it to a variable, when I echo it, it works perfectly, but when I output it to a .txt file it prints only the last loop
any suggestion 
below is my code

  



  $file = "D:\edl\input\aa.xlsx"
  $sheetName = "Sheet1"
  #Create an instance of Excel.Application and Open Excel file
  $objExcel = New-Object -ComObject Excel.Application
  $workbook = $objExcel.Workbooks.Open($file)
  $sheet = $workbook.Worksheets.Item($sheetName)
  $objExcel.Visible=$false
  #Count max row
  $rowMax = ($sheet.UsedRange.Rows).count
  #Declare the starting positions
  $rowName,$colName = 1,1
  $rowAge,$colAge = 1,2
  $rowCity,$colCity = 1,3
  $rowMessage,$colMessage = 1,9
  #loop to get values and store it
  for ($i=0; $i -le $rowMax-1; $i++)
  {
  $id = $sheet.Cells.Item($rowName+$i,$colName).text
  $name = $sheet.Cells.Item($rowAge+$i,$colAge).text
  $subtitle = $sheet.Cells.Item($rowCity+$i,$colCity).text
$filename2 = "$id.jpg"
$filename = "$id.mp4"
$filename1 = "$id.m4a"
$duration2 = if ((ffmpeg -i $filename2 2>&1 | Out-String) -match 'Duration:\s+([\d:.]+)') { $matches[1] };
$duration1 = if ((ffmpeg -i $filename1 2>&1 | Out-String) -match 'Duration:\s+([\d:.]+)') { $matches[1] };
$duration = if ((ffmpeg -i $filename 2>&1 | Out-String) -match 'Duration:\s+([\d:.]+)') { $matches[1] };
if($duration2){
$duration2 = "02:00:11:15"
$bb = $duration2
$out = "$i" + "  " + "AX" + "   " + "V" + "      " + "C" + "   " + "00:00:00:00" + " " + $bb + "   "+ "* FROM CLIP NAME: " + $id+".jpg"
}
if($duration1){

$out1 = "$i"+ "  " + "AX"  + "   " + "AA" + "     " + "C" + "   " + "00:00:00:00" + " " + $duration1 + "   " + "* FROM CLIP NAME: " + $id+".m4a"
}
if(!$duration){
}else{
$out2 = "$i" + "  " + "AX" + "   " + "AA/V" + "   " + "C" + "   " + "00:00:00:00" + " " + $duration + "   "+ "* FROM CLIP NAME: " + $id+".mp4"
}

$gg = $out+"`n"+"`n"+$out1+"`n"+"`n"+$out2+"`n"
echo $gg
$gg | Out-File -FilePath d:\edl\input\output.txt

  }

  #close excel file
  $objExcel.quit()


  



  when i echo variable $gg
  
this is the output

  



  0  AX   V      C   00:00:00:00 02:00:11:15   * FROM CLIP NAME: 1aef53e6-92ac-4d28-89f8-4cce28fa0f58.jpg

0  AX   AA     C   00:00:00:00 00:00:03.48   * FROM CLIP NAME: 1aef53e6-92ac-4d28-89f8-4cce28fa0f58.m4a

0  AX   AA/V   C   00:00:00:00 00:00:07.64   * FROM CLIP NAME: 1aef53e6-92ac-4d28-89f8-4cce28fa0f58.mp4

1  AX   V      C   00:00:00:00 02:00:11:15   * FROM CLIP NAME: 9a52a954-ffe9-4420-a701-68988923f81f.jpg

1  AX   AA     C   00:00:00:00 00:00:03.46   * FROM CLIP NAME: 9a52a954-ffe9-4420-a701-68988923f81f.m4a

0  AX   AA/V   C   00:00:00:00 00:00:07.64   * FROM CLIP NAME: 1aef53e6-92ac-4d28-89f8-4cce28fa0f58.mp4

2  AX   V      C   00:00:00:00 02:00:11:15   * FROM CLIP NAME: 20b92847-72eb-455d-98ce-6661ed52951e.jpg

2  AX   AA     C   00:00:00:00 00:00:03.52   * FROM CLIP NAME: 20b92847-72eb-455d-98ce-6661ed52951e.m4a

2  AX   AA/V   C   00:00:00:00 00:00:09.75   * FROM CLIP NAME: 20b92847-72eb-455d-98ce-6661ed52951e.mp4

3  AX   V      C   00:00:00:00 02:00:11:15   * FROM CLIP NAME: 73aa1f8e-1067-4efd-b2bd-6748a088f33a.jpg

3  AX   AA     C   00:00:00:00 00:00:03.21   * FROM CLIP NAME: 73aa1f8e-1067-4efd-b2bd-6748a088f33a.m4a

2  AX   AA/V   C   00:00:00:00 00:00:09.75   * FROM CLIP NAME: 20b92847-72eb-455d-98ce-6661ed52951e.mp4

4  AX   V      C   00:00:00:00 02:00:11:15   * FROM CLIP NAME: 1877c551-ceef-48e9-a1a5-00629a9964eb.jpg

4  AX   AA     C   00:00:00:00 00:00:03.05   * FROM CLIP NAME: 1877c551-ceef-48e9-a1a5-00629a9964eb.m4a

4  AX   AA/V   C   00:00:00:00 00:00:06.93   * FROM CLIP NAME: 1877c551-ceef-48e9-a1a5-00629a9964eb.mp4


  



  but my txt file output

  



  4  AX   V      C   00:00:00:00 02:00:11:15   * FROM CLIP NAME: 1877c551-ceef-48e9-a1a5-00629a9964eb.jpg

4  AX   AA     C   00:00:00:00 00:00:03.05   * FROM CLIP NAME: 1877c551-ceef-48e9-a1a5-00629a9964eb.m4a

4  AX   AA/V   C   00:00:00:00 00:00:06.93   * FROM CLIP NAME: 1877c551-ceef-48e9-a1a5-00629a9964eb.mp4