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Sur d’autres sites (14317)

  • 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.

    


  • High pitched audio or no audio at all when converting AVI video to MP4 with FFmpeg [closed]

    15 août 2023, par Karen S

    I'm pretty new to FFmpeg and I'm having trouble converting a video from AVI format to MP4. I'm trying to convert pcm_s16le to aac. No matter what audio stream I use, the resulting audio in the MP4 file is either very high pitched and choppy (stream 1) or the audio stream is silent (stream 2).

    


    The AVI video has two audio streams :

    


    Stream #0:1: Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s
Stream #0:2: Audio: pcm_s16le, 32000 Hz, stereo, s16, 1024 kb/s


    


    In VLC Media Player the video plays fine and it uses the second audio stream.

    


    When I run ffmpeg -i input.avi -vcodec libx264 -crf 27 output.mp4 in my terminal, the output audio in the MP4 file is very high pitched and choppy in VLC.
This is the codec information for the audio stream in VLC after the conversion :

    


    Codec: MPEG AAC Audio (mp4a)
Type: Audio
Channels: Stereo
Sample rate: 48000 Hz
Bits per sample: 32


    


    When I specify the audio stream and codec the resulting video is silent.

    


    ffmpeg -i input.avi -map 0:v:0 -vcodec libx264 -crf 29 -map 0:a:1 -acodec aac output.mp4


    


    This is the terminal output from FFmpeg :

    


    FILEPATH -i "input.avi" -map 0:v:0 -vcodec libx264 -crf 29 -map 0:a:1 -acodec aac "output.mp4"
ffmpeg version 2023-06-11-git-09621fd7d9-full_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-libsnappy --enable-zlib --enable-librist --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca --enable-sdl2 --enable-libaribb24 --enable-libaribcaption --enable-libdav1d --enable-libdavs2 --enable-libuavs3d --enable-libzvbi --enable-librav1e --enable-libsvtav1 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs2 --enable-libxvid --enable-libaom --enable-libjxl --enable-libopenjpeg --enable-libvpx --enable-mediafoundation --enable-libass --enable-frei0r --enable-libfreetype --enable-libfribidi --enable-liblensfun --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-libshaderc --enable-vulkan --enable-libplacebo --enable-opencl --enable-libcdio --enable-libgme --enable-libmodplug --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libshine --enable-libtheora --enable-libtwolame --enable-libvo-amrwbenc --enable-libcodec2 --enable-libilbc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-ladspa --enable-libbs2b --enable-libflite --enable-libmysofa --enable-librubberband --enable-libsoxr --enable-chromaprint
  libavutil      58. 13.100 / 58. 13.100
  libavcodec     60. 17.100 / 60. 17.100
  libavformat    60.  6.100 / 60.  6.100
  libavdevice    60.  2.100 / 60.  2.100
  libavfilter     9.  8.101 /  9.  8.101
  libswscale      7.  3.100 /  7.  3.100
  libswresample   4. 11.100 /  4. 11.100
  libpostproc    57.  2.100 / 57.  2.100
[avi @ 000002533665a400] Switching to NI mode, due to poor interleaving
Input #0, avi, from 'input.avi':
  Duration: 00:10:40.64, start: 0.000000, bitrate: 28852 kb/s
  Stream #0:0: Video: dvvideo, yuv411p, 720x480 [SAR 32:27 DAR 16:9], 25000 kb/s, SAR 8:9 DAR 4:3, 60k fps, 29.97 tbr, 60k tbn
  Stream #0:1: Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s
  Stream #0:2: Audio: pcm_s16le, 32000 Hz, stereo, s16, 1024 kb/s
File 'output.mp4' already exists. Overwrite? [y/N] y
Stream mapping:
  Stream #0:0 -> #0:0 (dvvideo (native) -> h264 (libx264))
  Stream #0:2 -> #0:1 (pcm_s16le (native) -> aac (native))
Press [q] to stop, [?] for help
[libx264 @ 00000253366702c0] using SAR=8/9
[libx264 @ 00000253366702c0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 00000253366702c0] profile High 4:2:2, level 3.0, 4:2:2, 8-bit
[libx264 @ 00000253366702c0] 264 - core 164 r3107 a8b68eb - H.264/MPEG-4 AVC codec - Copyleft 2003-2023 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=12 lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=29.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to 'output.mp4':
  Metadata:
    encoder         : Lavf60.6.100
  Stream #0:0: Video: h264 (avc1 / 0x31637661), yuv422p(tv, bottom coded first (swapped)), 720x480 [SAR 8:9 DAR 4:3], q=2-31, 29.97 fps, 30k tbn
    Metadata:
      encoder         : Lavc60.17.100 libx264
    Side data:
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
  Stream #0:1: Audio: aac (LC) (mp4a / 0x6134706D), 32000 Hz, stereo, fltp, 128 kb/s
    Metadata:
      encoder         : Lavc60.17.100 aac
[dvvideo @ 000002533879d780] Concealing bitstream errors.41 bitrate= 901.6kbits/s speed=2.01x
    Last message repeated 76 times
[dvvideo @ 000002533878f640] Concealing bitstream errors.43 bitrate= 925.1kbits/s speed=1.97x
    Last message repeated 19 times
[out#0/mp4 @ 00000253366770c0] video:72743kB audio:119kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.649282%
frame=19200 fps= 58 q=-1.0 Lsize=   73335kB time=00:10:40.61 bitrate= 937.8kbits/s speed=1.92x
[libx264 @ 00000253366702c0] frame I:99    Avg QP:28.84  size: 35252
[libx264 @ 00000253366702c0] frame P:4922  Avg QP:31.82  size:  9208
[libx264 @ 00000253366702c0] frame B:14179 Avg QP:36.03  size:  1811
[libx264 @ 00000253366702c0] consecutive B-frames:  1.2%  0.8%  1.1% 97.0%
[libx264 @ 00000253366702c0] mb I  I16..4: 13.7% 74.6% 11.7%
[libx264 @ 00000253366702c0] mb P  I16..4:  1.7%  6.7%  1.1%  P16..4: 38.6% 13.2%  9.3%  0.0%  0.0%    skip:29.3%
[libx264 @ 00000253366702c0] mb B  I16..4:  0.2%  0.5%  0.0%  B16..8: 37.3%  2.8%  0.7%  direct: 2.1%  skip:56.3%  L0:42.5% L1:52.2% BI: 5.3%
[libx264 @ 00000253366702c0] 8x8 transform intra:69.6% inter:71.7%
[libx264 @ 00000253366702c0] coded y,uvDC,uvAC intra: 65.4% 59.0% 8.7% inter: 12.9% 7.0% 0.1%
[libx264 @ 00000253366702c0] i16 v,h,dc,p: 12% 64%  7% 16%
[libx264 @ 00000253366702c0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 11% 26% 26%  5%  6%  5%  8%  5%  8%
[libx264 @ 00000253366702c0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu:  9% 48% 15%  4%  5%  4%  7%  3%  5%
[libx264 @ 00000253366702c0] i8c dc,h,v,p: 61% 19% 16%  4%
[libx264 @ 00000253366702c0] Weighted P-Frames: Y:3.5% UV:1.3%
[libx264 @ 00000253366702c0] ref P L0: 55.4% 15.5% 20.6%  8.2%  0.3%
[libx264 @ 00000253366702c0] ref B L0: 89.3%  8.2%  2.5%
[libx264 @ 00000253366702c0] ref B L1: 95.5%  4.5%
[libx264 @ 00000253366702c0] kb/s:930.17
[aac @ 00000253382c31c0] Qavg: 65536.000


    


    Could someone point me in the right direction please ? I've tried doing the conversion with Handbrake as well and the audio is still choppy.

    


  • Everytime I run my code ffmpeg responds with this instead of doing its function. How do I fix ?

    25 juillet 2023, par Oreo F
    Output from ffmpeg/avlib:

ffmpeg version 2023-07-19-git-efa6cec759-full_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-libsnappy --enable-zlib --enable-librist --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca --enable-sdl2 --enable-libaribb24 --enable-libaribcaption --enable-libdav1d --enable-libdavs2 --enable-libuavs3d --enable-libzvbi --enable-librav1e --enable-libsvtav1 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs2 --enable-libxvid --enable-libaom --enable-libjxl --enable-libopenjpeg --enable-libvpx --enable-mediafoundation --enable-libass --enable-frei0r --enable-libfreetype --enable-libfribidi --enable-libharfbuzz --enable-liblensfun --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-libshaderc --enable-vulkan --enable-libplacebo --enable-opencl --enable-libcdio --enable-libgme --enable-libmodplug --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libshine --enable-libtheora --enable-libtwolame --enable-libvo-amrwbenc --enable-libcodec2 --enable-libilbc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-ladspa --enable-libbs2b --enable-libflite --enable-libmysofa --enable-librubberband --enable-libsoxr --enable-chromaprint
  libavutil      58. 14.100 / 58. 14.100
  libavcodec     60. 22.100 / 60. 22.100
  libavformat    60. 10.100 / 60. 10.100
  libavdevice    60.  2.101 / 60.  2.101
  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


    


    Everytime I run the code it does this.

    


    code :

    


    import praw
import requests
import cv2
import os
from pydub import AudioSegment

def download_video(url, filename):
    response = requests.get(url)
    with open(filename, 'wb') as f:
        f.write(response.content)

def combine_videos(video_urls, output_filename):
    video_clips = []
    audio_clips = []
    for i, url in enumerate(video_urls):
        temp_filename = f'temp_video_{i}.mp4'
        download_video(url, temp_filename)
        video_clip = cv2.VideoCapture(temp_filename)
        audio_clip = AudioSegment.from_file(temp_filename, format="mp4")
        video_clips.append(video_clip)
        audio_clips.append(audio_clip)
    
    if not video_clips:
        print("No video clips to combine.")
        return

    frame_width = int(video_clips[0].get(cv2.CAP_PROP_FRAME_WIDTH))
    frame_height = int(video_clips[0].get(cv2.CAP_PROP_FRAME_HEIGHT))
    fps = int(video_clips[0].get(cv2.CAP_PROP_FPS))

    fourcc = cv2.VideoWriter_fourcc(*'mp4v')
    output_clip = cv2.VideoWriter(output_filename, fourcc, fps, (frame_width, frame_height))

    for i, video_clip in enumerate(video_clips):
        while True:
            ret, frame = video_clip.read()
            if not ret:
                break
            output_clip.write(frame)
    
    for video_clip in video_clips:
        video_clip.release()
    
    output_clip.release()

    # Combining audio using pydub
    combined_audio = sum(audio_clips)
    combined_audio.export("combined_audio.mp3", format="mp3")

    # Merging audio with video using ffmpeg
    os.system(f'ffmpeg -i {output_filename} -i combined_audio.mp3 -c:v copy -c:a aac -strict experimental -map 0:v:0 -map 1:a:0 final_output.mp4')

    # Cleaning up temporary files
    os.remove("combined_audio.mp3")

def main():
    reddit = praw.Reddit(
       client_id='XXX',
        client_secret='XXX',
        user_agent='Reddit Video Downloader'
    )
    
    subreddit_name = input("Enter the name of the subreddit: ")
    limit = int(input("Enter the number of videos to download: "))
    
    subreddit = reddit.subreddit(subreddit_name)
    submissions = subreddit.hot(limit=limit)
    
    video_urls = [submission.url for submission in submissions if submission.media and 'reddit_video' in submission.media]
    
    if video_urls:
        output_filename = input("Enter the output filename (e.g., output.mp4): ")
        combine_videos(video_urls, output_filename)
        print("Videos combined successfully!")
    else:
        print("No Reddit videos found in the subreddit.")

if __name__ == "__main__":
    main()


    


    Anyone got any idea why this happens ?

    


    I'm making a script that scrapes videos from a specific subreddit.

    


    Also if it helps the temp video file is corrupted when it gets made.

    


    I've put this into chatGPT as well and brought an expert friend and he hasn't been able to help me.

    


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