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• Have an error running one PowerShell script to concatenate avi files, when a very similar script works fine

  1er juillet 2023, par hw22s

  When I run the following PowerShell script, to concatenate the .avi files in a folder, I get an error.

  


  Script :

  


  # Set the folder path where the AVI files are located
$folderPath = "C:\Users\HomePC\hswlab\Desktop\videos\eyeblink\022223\2023_04_24\16_15_23\My_WebCam"

# Get all AVI files in the folder
$aviFiles = Get-ChildItem -Path $folderPath -Filter "*.avi" | Sort-Object Name

# Check if there are at least 2 AVI files for concatenation
if ($aviFiles.Count -ge 2) {
    $videoFiles = $aviFiles.FullName

    Write-Host "Input Files for Concatenation:"
    foreach ($file in $aviFiles) {
        Write-Host $file.Name
    }

    $outputFile = Join-Path -Path $folderPath -ChildPath "concatenated.avi"

    # Create the FFmpeg command for concatenation
    $concatArguments = "-f", "concat", "-i", "`"concat:$videoFiles`"", "-c", "copy", "`"$outputFile`""

    $command = "ffmpeg $concatArguments"
    Write-Host "FFmpeg Command: $command"

    try {
        $process = Start-Process -FilePath "ffmpeg" -ArgumentList $concatArguments -NoNewWindow -PassThru -Wait -ErrorAction Stop
        Write-Host "Concatenation complete. Output file: $outputFile"
    } catch {
        Write-Host "Error occurred while executing FFmpeg command:"
        Write-Host "Error message: $($_.Exception.Message)"
    }
} else {
    Write-Host "Not enough AVI files found in the folder for concatenation."
}


  


  Output with error, (and no concatenated file is actually produced, needless to say) :

  


  Input Files for Concatenation:
webcam0.avi
webcam1.avi
FFmpeg Command: ffmpeg -f concat -i "concat:C:\Users\HomePC\hswlab\Desktop\videos\eyeblink\022223\2023_04_24\16_15_23\My_WebCam\webcam0.avi C:\Users\HomePC\hswlab\Desktop\videos\eyeblink\022223\2023_04_24\16_15_23\My_WebCam\webcam1.avi" -c copy "C:\Users\HomePC\hswlab\Desktop\videos\eyeblink\022223\2023_04_24\16_15_23\My_WebCam\concatenated.avi"
ffmpeg version 2023-06-27-git-9b6d191a66-essentials_build-www.gyan.dev Copyright (c) 2000-2023 the FFmpeg developers
  built with gcc 12.2.0 (Rev10, Built by MSYS2 project)
  configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-bzlib --enable-lzma --enable-zlib --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-sdl2 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libaom --enable-libopenjpeg --enable-libvpx --enable-mediafoundation --enable-libass --enable-libfreetype --enable-libfribidi --enable-libharfbuzz --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-d3d11va --enable-dxva2 --enable-libvpl --enable-libgme --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libtheora --enable-libvo-amrwbenc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-librubberband
  libavutil      58. 13.101 / 58. 13.101
  libavcodec     60. 21.100 / 60. 21.100
  libavformat    60.  9.100 / 60.  9.100
  libavdevice    60.  2.100 / 60.  2.100
  libavfilter     9.  8.102 /  9.  8.102
  libswscale      7.  3.100 /  7.  3.100
  libswresample   4. 11.100 /  4. 11.100
  libpostproc    57.  2.100 / 57.  2.100
[in#0 @ 000001d2f05f1b00] Error opening input: Invalid argument
Concatenation complete. Output file: C:\Users\HomePC\hswlab\Desktop\videos\eyeblink\022223\2023_04_24\16_15_23\My_WebCam\concatenated.avi


  


  But this script, which ostensibly does the same thing to the same files, works fine :

  


  $file1 = "C:\Users\HomePC\hswlab\Desktop\videos\eyeblink\022223\2023_04_24\16_15_23\My_WebCam\webcam0.avi"       # Path to the first video file
$file2 = "C:\Users\HomePC\hswlab\Desktop\videos\eyeblink\022223\2023_04_24\16_15_23\My_WebCam\webcam1.avi"       # Path to the second video file
$outputFile = "C:\Users\HomePC\hswlab\Desktop\videos\eyeblink\022223\2023_04_24\16_15_23\My_WebCam\concat.avi"  # Path to the output concatenated video file

# Create a temporary batch script
$batchScriptPath = [System.IO.Path]::GetTempFileName() + ".bat"
@'
@echo off
ffmpeg -i "%~1" -i "%~2" -filter_complex "[0:v][1:v]concat=n=2:v=1[outv]" -map "[outv]" "%~3"
'@ | Set-Content -Path $batchScriptPath

# Execute the temporary batch script
try {
    & $batchScriptPath $file1 $file2 $outputFile
    Write-Host "Concatenation complete. Output file: $outputFile"
} catch {
    Write-Host "Error occurred while executing FFmpeg command:"
    Write-Host $_.Exception.Message
}

# Remove the temporary batch script
Remove-Item -Path $batchScriptPath -Force


  


  I can't figure out what is wrong with the first script. I tried many variations of the first script but cannot get it to work.

  


  Any help ?

  


• Have an error running one batch script to concatenate avi files, when a very similar script works fine

  1er juillet 2023, par hw22s

  When I run the following bath script to concatenate the .avi files in a folder, I get an error. I am using powershell on a windows computer
Script :

  


  # Set the folder path where the AVI files are located
$folderPath = "C:\Users\HomePC\hswlab\Desktop\videos\eyeblink\022223\2023_04_24\16_15_23\My_WebCam"

# Get all AVI files in the folder
$aviFiles = Get-ChildItem -Path $folderPath -Filter "*.avi" | Sort-Object Name

# Check if there are at least 2 AVI files for concatenation
if ($aviFiles.Count -ge 2) {
    $videoFiles = $aviFiles.FullName

    Write-Host "Input Files for Concatenation:"
    foreach ($file in $aviFiles) {
        Write-Host $file.Name
    }

    $outputFile = Join-Path -Path $folderPath -ChildPath "concatenated.avi"

    # Create the FFmpeg command for concatenation
    $concatArguments = "-f", "concat", "-i", "`"concat:$videoFiles`"", "-c", "copy", "`"$outputFile`""

    $command = "ffmpeg $concatArguments"
    Write-Host "FFmpeg Command: $command"

    try {
        $process = Start-Process -FilePath "ffmpeg" -ArgumentList $concatArguments -NoNewWindow -PassThru -Wait -ErrorAction Stop
        Write-Host "Concatenation complete. Output file: $outputFile"
    } catch {
        Write-Host "Error occurred while executing FFmpeg command:"
        Write-Host "Error message: $($_.Exception.Message)"
    }
} else {
    Write-Host "Not enough AVI files found in the folder for concatenation."
}



  


  Output with error (and no concatenated file is actually produced, needless to say) :

  


  Input Files for Concatenation:
webcam0.avi
webcam1.avi
FFmpeg Command: ffmpeg -f concat -i "concat:C:\Users\HomePC\hswlab\Desktop\videos\eyeblink\022223\2023_04_24\16_15_23\My_WebCam\webcam0.avi C:\Users\HomePC\hswlab\Desktop\videos\eyeblink\022223\2023_04_24\16_15_23\My_WebCam\webcam1.avi" -c copy "C:\Users\HomePC\hswlab\Desktop\videos\eyeblink\022223\2023_04_24\16_15_23\My_WebCam\concatenated.avi"
ffmpeg version 2023-06-27-git-9b6d191a66-essentials_build-www.gyan.dev Copyright (c) 2000-2023 the FFmpeg developers
  built with gcc 12.2.0 (Rev10, Built by MSYS2 project)
  configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-bzlib --enable-lzma --enable-zlib --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-sdl2 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libaom --enable-libopenjpeg --enable-libvpx --enable-mediafoundation --enable-libass --enable-libfreetype --enable-libfribidi --enable-libharfbuzz --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-d3d11va --enable-dxva2 --enable-libvpl --enable-libgme --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libtheora --enable-libvo-amrwbenc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-librubberband
  libavutil      58. 13.101 / 58. 13.101
  libavcodec     60. 21.100 / 60. 21.100
  libavformat    60.  9.100 / 60.  9.100
  libavdevice    60.  2.100 / 60.  2.100
  libavfilter     9.  8.102 /  9.  8.102
  libswscale      7.  3.100 /  7.  3.100
  libswresample   4. 11.100 /  4. 11.100
  libpostproc    57.  2.100 / 57.  2.100
[in#0 @ 000001d2f05f1b00] Error opening input: Invalid argument
Concatenation complete. Output file: C:\Users\HomePC\hswlab\Desktop\videos\eyeblink\022223\2023_04_24\16_15_23\My_WebCam\concatenated.avi


  


  But this script, which ostensibly does the same thing to the same files, works fine :

  


  $file1 = "C:\Users\HomePC\hswlab\Desktop\videos\eyeblink\022223\2023_04_24\16_15_23\My_WebCam\webcam0.avi"       # Path to the first video file
$file2 = "C:\Users\HomePC\hswlab\Desktop\videos\eyeblink\022223\2023_04_24\16_15_23\My_WebCam\webcam1.avi"       # Path to the second video file
$outputFile = "C:\Users\HomePC\hswlab\Desktop\videos\eyeblink\022223\2023_04_24\16_15_23\My_WebCam\concat.avi"  # Path to the output concatenated video file

# Create a temporary batch script
$batchScriptPath = [System.IO.Path]::GetTempFileName() + ".bat"
@'
@echo off
ffmpeg -i "%~1" -i "%~2" -filter_complex "[0:v][1:v]concat=n=2:v=1[outv]" -map "[outv]" "%~3"
'@ | Set-Content -Path $batchScriptPath

# Execute the temporary batch script
try {
    & $batchScriptPath $file1 $file2 $outputFile
    Write-Host "Concatenation complete. Output file: $outputFile"
} catch {
    Write-Host "Error occurred while executing FFmpeg command:"
    Write-Host $_.Exception.Message
}

# Remove the temporary batch script
Remove-Item -Path $batchScriptPath -Force



  


  I can't figure out what is wrong with the first script. Any help ?? Thank you !!

  


  Tried many variations on the first script but cannot get it to work.

  


• How to fix the ffmpeg python issue "Error applying option 'original_size' to filter 'ass' : Invalid argument" ?

  16 février, par Gauthier Buttez

  ENVIRONMENT :

  


  Python 3.10

  


  Windows 11

  


  ffmpeg-python==0.2.0

  


  CONTEXT :

  


  I am trying to add hardcoded subtitles on a video with ffmpeg and Pyton.

  


  PROBLEM :

  


  ffmpeg is not able to find the path of my ass subtitle file. So I tried different ways with different methods. I asked different AI to try to find a solution. Impossible ! It is such a crazy issue that I tested the code from a "test" folder located on the root "C :" from the command line wid nows. No AI was able to fixed this issue. I tried chatGPT, deepseek, claude.ai. They proposed different solutions which were not working.

  


  THE CODE :

  


  import os
import ffmpeg
import subprocess

def add_subtitles_with_ass(video_path, ass_path, output_path):

    video_path = os.path.abspath(video_path)
    ass_path = os.path.abspath(ass_path)
    output_path = os.path.abspath(output_path)

    print(f"🚀 Add susbtitiles with ASS : {ass_path}")
    ass_path_escaped = rf'"{ass_path}"'

    try:
        ffmpeg.input(video_path).output(output_path, vf=f"ass='{ass_path_escaped}'").run(overwrite_output=True)
        print(f"✅ Subtitles added with success : {output_path}")
    except Exception as e:
        print(f"❌ ERROR when adding subtitles : {e}")


def add_subtitles_with_ass_with_subprocess(video_path, ass_path, output_path):
    video_path = os.path.abspath(video_path)
    ass_path = os.path.abspath(ass_path)
    output_path = os.path.abspath(output_path)

    print(f"🚀 Add subtitles with ASS : {ass_path}")

    try:
        command = [
            'ffmpeg',
            '-i', video_path,
            '-vf', f"ass='{ass_path}'",
            '-c:a', 'copy',
            output_path,
            '-y'  # Overwrite output file without asking
        ]

        subprocess.run(command, check=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
        print(f"✅ Subtitles added with success : {output_path}")
    except subprocess.CalledProcessError as e:
        print(f"❌ ERROR when adding subtitles : {e.stderr.decode('utf-8')}")


print(f"Test 1 -----------------------------------------------------------------------")
ass_path="G:\Mi unidad\Python\Scripts\shorts_videos\10000views_and_higher\Li2zY7XcOf0_Matthew_Hussey_flip_h_BW_with_logo_EN.ass"
video_path="G:\Mi unidad\Python\Scripts\shorts_videos\10000views_and_higher\Li2zY7XcOf0_Matthew_Hussey_flip_h_BW_with_logo.mp4"
output_path="G:\Mi unidad\Python\Scripts\shorts_videos\10000views_and_higher\Li2zY7XcOf0_Matthew_Hussey_flip_h_BW_with_logo_EN.mp4"
add_subtitles_with_ass(video_path, ass_path, output_path)
print(50*"*")
print(50*"*")
print(50*"*")

print(f"Test 2 -----------------------------------------------------------------------")
ass_path2="G:\\Mi unidad\\Python\\Scripts\\shorts_videos\\10000views_and_higher\\Li2zY7XcOf0_Matthew_Hussey_flip_h_BW_with_logo_EN.ass"
video_path2="G:\\Mi unidad\\Python\\Scripts\\shorts_videos\\10000views_and_higher\\Li2zY7XcOf0_Matthew_Hussey_flip_h_BW_with_logo.mp4"
output_path2="G:\\Mi unidad\\Python\\Scripts\\shorts_videos\\10000views_and_higher\\Li2zY7XcOf0_Matthew_Hussey_flip_h_BW_with_logo_EN.mp4"
add_subtitles_with_ass(video_path2, ass_path2, output_path2)

print(50*"*")
print(50*"*")
print(50*"*")

print(f"Test 3 -----------------------------------------------------------------------")
ass_path3="G:/\Mi unidad/\Python/\Scripts/\shorts_videos/\10000views_and_higher/\Li2zY7XcOf0_Matthew_Hussey_flip_h_BW_with_logo_EN.ass"
video_path3="G:/\Mi unidad/\Python/\Scripts/\shorts_videos/\10000views_and_higher/\Li2zY7XcOf0_Matthew_Hussey_flip_h_BW_with_logo.mp4"
output_path3="G:/\Mi unidad/\Python/\Scripts/\shorts_videos/\10000views_and_higher/\Li2zY7XcOf0_Matthew_Hussey_flip_h_BW_with_logo_EN.mp4"
add_subtitles_with_ass(video_path3, ass_path3, output_path3)

print(50*"*")
print(50*"*")
print(50*"*")

print(f"Test 4 -----------------------------------------------------------------------")
ass_path4="G:/\\Mi unidad/\\Python/\\Scripts/\\shorts_videos/\\10000views_and_higher/\\Li2zY7XcOf0_Matthew_Hussey_flip_h_BW_with_logo_EN.ass"
video_path4="G:/\\Mi unidad/\\Python/\\Scripts/\\shorts_videos/\\10000views_and_higher/\\Li2zY7XcOf0_Matthew_Hussey_flip_h_BW_with_logo.mp4"
output_path4="G:/\\Mi unidad/\\Python/\\Scripts/\\shorts_videos/\\10000views_and_higher/\\Li2zY7XcOf0_Matthew_Hussey_flip_h_BW_with_logo_EN.mp4"
add_subtitles_with_ass(video_path4, ass_path4, output_path4)




print(f"Test 1 with subprocess -----------------------------------------------------------------------")
add_subtitles_with_ass_with_subprocess(video_path, ass_path, output_path)
print(50*"*")
print(50*"*")
print(50*"*")

print(f"Test 2 with subprocess -----------------------------------------------------------------------")
add_subtitles_with_ass_with_subprocess(video_path2, ass_path2, output_path2)
print(50*"*")
print(50*"*")
print(50*"*")

print(f"Test 3 with subprocess -----------------------------------------------------------------------")
add_subtitles_with_ass_with_subprocess(video_path3, ass_path3, output_path3)
print(50*"*")
print(50*"*")
print(50*"*")

print(f"Test 4 with subprocess -----------------------------------------------------------------------")
add_subtitles_with_ass_with_subprocess(video_path4, ass_path4, output_path4)
print(50*"*")
print(50*"*")
print(50*"*")

#======================= IT DIDN'T WORK, SO LET'S DO WITH RELATIVE PATH ===================================


print(f"Test 1 with relative path -----------------------------------------------------------------------")
ass_path_relative="10000views_and_higher\Li2zY7XcOf0_Matthew_Hussey_flip_h_BW_with_logo_EN.ass"
video_path_relative="10000views_and_higher\Li2zY7XcOf0_Matthew_Hussey_flip_h_BW_with_logo.mp4"
output_path_relative="10000views_and_higher\Li2zY7XcOf0_Matthew_Hussey_flip_h_BW_with_logo_EN.mp4"
add_subtitles_with_ass(video_path_relative, ass_path_relative, output_path_relative)
print(50*"*")
print(50*"*")
print(50*"*")

print(f"Test 2  with relative path -----------------------------------------------------------------------")
ass_path2_relative="10000views_and_higher\\Li2zY7XcOf0_Matthew_Hussey_flip_h_BW_with_logo_EN.ass"
video_path2_relative="10000views_and_higher\\Li2zY7XcOf0_Matthew_Hussey_flip_h_BW_with_logo.mp4"
output_path2_relative="10000views_and_higher\\Li2zY7XcOf0_Matthew_Hussey_flip_h_BW_with_logo_EN.mp4"
add_subtitles_with_ass(video_path2_relative, ass_path2_relative, output_path2_relative)

print(50*"*")
print(50*"*")
print(50*"*")

print(f"Test 3  with relative path -----------------------------------------------------------------------")
ass_path3_relative="10000views_and_higher/\Li2zY7XcOf0_Matthew_Hussey_flip_h_BW_with_logo_EN.ass"
video_path3_relative="10000views_and_higher/\Li2zY7XcOf0_Matthew_Hussey_flip_h_BW_with_logo.mp4"
output_path3_relative="10000views_and_higher/\Li2zY7XcOf0_Matthew_Hussey_flip_h_BW_with_logo_EN.mp4"
add_subtitles_with_ass(video_path3_relative, ass_path3_relative, output_path3_relative)

print(50*"*")
print(50*"*")
print(50*"*")

print(f"Test 4  with relative path -----------------------------------------------------------------------")
ass_path4_relative="10000views_and_higher/\\Li2zY7XcOf0_Matthew_Hussey_flip_h_BW_with_logo_EN.ass"
video_path4_relative="10000views_and_higher/\\Li2zY7XcOf0_Matthew_Hussey_flip_h_BW_with_logo.mp4"
output_path4_relative="10000views_and_higher/\\Li2zY7XcOf0_Matthew_Hussey_flip_h_BW_with_logo_EN.mp4"
add_subtitles_with_ass(video_path4_relative, ass_path4_relative, output_path4_relative)




print(f"Test 1 with subprocess  with relative path -----------------------------------------------------------------------")
add_subtitles_with_ass_with_subprocess(video_path, ass_path, output_path)
print(50*"*")
print(50*"*")
print(50*"*")

print(f"Test 2 with subprocess  with relative path -----------------------------------------------------------------------")
add_subtitles_with_ass_with_subprocess(video_path2_relative, ass_path2_relative, output_path2_relative)
print(50*"*")
print(50*"*")
print(50*"*")

print(f"Test 3 with subprocess  with relative path -----------------------------------------------------------------------")
add_subtitles_with_ass_with_subprocess(video_path3_relative, ass_path3_relative, output_path3_relative)
print(50*"*")
print(50*"*")
print(50*"*")

print(f"Test 4 with subprocess  with relative path -----------------------------------------------------------------------")
add_subtitles_with_ass_with_subprocess(video_path4_relative, ass_path4_relative, output_path4_relative)
print(50*"*")
print(50*"*")
print(50*"*")


  


  THE OUTPUT :

  


  The output was too large to post it here. I uploaded it on my github :

  


  https://github.com/gauthierbuttez/public/blob/master/output_ffmpeg.log

  


  I also zipped and uploaded all the files to make reproducing the issue on your computer easy :

  


  https://github.com/gauthierbuttez/public/blob/master/test.zip

  


  Is there any kind super Python Master in the place ?