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• Laravel FFMpeg - FFMpeg cannot edit existing files in-place

  28 septembre 2020, par wlaskovic

  After I wanted to upload a video in the queue was returned a failed job.

  


   [2020-09-25 13:24:25][125] Processing: App\Jobs\ConvertVideoForStreaming <br /> [2020-09-25 13:24:26][125] Failed:     App\Jobs\ConvertVideoForStreaming&#xA;

  


  So I've took from the DB failed_jobs table the response and run the following :

  


    C:\ffmpeg\bin\ffmpeg.exe -y -i "C:\wamp64\www\laravel-stream\storage\app/public\WF3UL8fJTSE7BMxa.mp4" -threads 12 -vcodec libx264 -acodec libmp3lame -b:v 500k -refs 6 -coder 1 -sc_threshold 40 -flags +loop -me_range 16 -subq 7 -i_qfactor 0.71 -qcomp 0.6 -qdiff 4 -trellis 1 -b:a 128k -vf "[in]scale=720:360 [out]" -pass 1 -passlogfile "C:\Users\wlask\AppData\Local\Temp\ffmpeg-passes5f6dd36a4519fd1fev/pass-5f6dd36a452c9" "C:\wamp64\www\laravel-stream\storage\app/public\WF3UL8fJTSE7BMxa.mp4"


  


  Which returned the following :

  


  ffmpeg version 4.3.1 Copyright (c) 2000-2020 the FFmpeg developers
  built with gcc 10.2.1 (GCC) 20200726
  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf
  libavutil      56. 51.100 / 56. 51.100
  libavcodec     58. 91.100 / 58. 91.100
  libavformat    58. 45.100 / 58. 45.100
  libavdevice    58. 10.100 / 58. 10.100
  libavfilter     7. 85.100 /  7. 85.100
  libswscale      5.  7.100 /  5.  7.100
  libswresample   3.  7.100 /  3.  7.100
  libpostproc    55.  7.100 / 55.  7.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'C:\wamp64\www\laravel-stream\storage\app/public\WF3UL8fJTSE7BMxa.mp4':
  Metadata:
    major_brand     : mp42
    minor_version   : 0
    compatible_brands: mp42mp41isomavc1
    creation_time   : 2015-08-07T09:13:02.000000Z
  Duration: 00:00:30.53, start: 0.000000, bitrate: 411 kb/s
    Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 480x270 [SAR 1:1 DAR 16:9], 301 kb/s, 30 fps, 30 tbr, 30 tbn, 60 tbc (default)
    Metadata:
      creation_time   : 2015-08-07T09:13:02.000000Z
      handler_name    : L-SMASH Video Handler
      encoder         : AVC Coding
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 112 kb/s (default)
    Metadata:
      creation_time   : 2015-08-07T09:13:02.000000Z
      handler_name    : L-SMASH Audio Handler


  


  


  Output C :\wamp64\www\laravel-stream\storage\app/public\WF3UL8fJTSE7BMxa.mp4 same as Input #0 - exiting

  


  FFmpeg cannot edit existing files in-place.

  


  


  This was returned after i've run the command from DB failed jobs table return.

  


  How should I solve this ?

  


• Anomalie #4546 : image_recadre perd l’EXIF de rotation

  19 septembre 2020, par jluc -

  Le 19/07/2020, cerdic dit « 
  On pourrait envisager que conserver les exifs à travers chaque filtre image, mais c’est aussi dangereux du point de vue des données personnelles. Je verrais plutôt un filtre qui permettrait de recopier certains exifs d’une image source sur l’image finale, sur le mode :
  

  <span class="CodeRay">[(#FICHIER|image_reduire{…}|image_recadre{…}|image_copie_exif{#FICHIER,’author’})]
  
  </span>

  
  (syntaxe exacte à définir)
   »

• Why AudioSegment doesn't read 'mp3' ?

  22 octobre 2020, par freshITmeat

  I tried to read file that I give with absolute path.
When I run my code first that I see is this message :

  


  D:\prog\datascience\anaconda\lib\site-packages\pydub\utils.py:170: RuntimeWarning: Couldn't find ffmpeg or avconv - defaulting to ffmpeg, but may not work
  warn("Couldn't find ffmpeg or avconv - defaulting to ffmpeg, but may not work", RuntimeWarning)


  


  I tried this :

  


  PATH_TO_FFMPEG = 'D:\\prog\\ffmpeg-win-2.2.2\\ffmpeg.exe'
pydub.AudioSegment.converter = r'D:\\prog\\ffmpeg-win-2.2.2\\ffmpeg.exe'


  


  And I separately installed ffmpeg with pip. But it didn't help.
When I try this :

  


  raw_sound = pydub.AudioSegment.from_mp3(file=track_path)


  


  where track_path is correct absolute path generated automatically.
So I got this this error :

  


  Traceback (most recent call last):&#xA;  File "D:\prog\PyCharm Community Edition 2020.2.2\plugins\python-ce\helpers\pydev\pydevd.py", line 1448, in _exec&#xA;    pydev_imports.execfile(file, globals, locals)  # execute the script&#xA;  File "D:\prog\PyCharm Community Edition 2020.2.2\plugins\python-ce\helpers\pydev\_pydev_imps\_pydev_execfile.py", line 18, in execfile&#xA;    exec(compile(contents&#x2B;"\n", file, &#x27;exec&#x27;), glob, loc)&#xA;  File "D:/testtask2/test_task/testtask/get_mffc.py", line 165, in <module>&#xA;    slice_all_in_a_dir(&#x27;May 27 2020 LNC/Hydrophone 1/raw_records&#x27;)&#xA;  File "D:/testtask2/test_task/testtask/get_mffc.py", line 70, in slice_all_in_a_dir&#xA;    slice_samples(track_path= [file],&#xA;  File "D:/testtask2/test_task/testtask/get_mffc.py", line 48, in slice_samples&#xA;    raw_sound = pydub.AudioSegment.from_mp3(file=track_path)&#xA;  File "D:\prog\datascience\anaconda\lib\site-packages\pydub\audio_segment.py", line 738, in from_mp3&#xA;    return cls.from_file(file, &#x27;mp3&#x27;, parameters=parameters)&#xA;  File "D:\prog\datascience\anaconda\lib\site-packages\pydub\audio_segment.py", line 680, in from_file&#xA;    stdin_data = file.read()&#xA;AttributeError: &#x27;list&#x27; object has no attribute &#x27;read&#x27;&#xA;python-BaseException&#xA;</module>

  


  Full code when I use it :

  


  def slice_samples(track_path: list, save_path: str,
                  sample_folder_name: str, interval: float, given_format, name: str = "part", export_format = 'wav'):
    """
    This metod slice given track to parts.
    :param track_path: str, a path to the track you want to slice
    :param save_path: str, a path to folder, where you want save sliced tracks
    :param sample_folder_name: str, you don't need to create a folder for sliced tracks,
    you can just write the name of the folder in this argument where you want to save tracks
    :param interval: float, measure in seconds, the length of sliced tracks
    :param name: str, name of sliced tacks
    :param given_format: str, I strongly recommend use .wav format initially, when you record sounds
    :return: folder with sliced tracks
    """

    # it cuts a file in mp3 or wav formats (wav recommended)

    interval_secs = interval * 10 ** 3
    raw_sound = None
    if given_format == "WAV":
        raw_sound = pydub.AudioSegment.from_wav(file=track_path)
    elif given_format == "MP3":
        raw_sound = pydub.AudioSegment.from_mp3(file=track_path)
    else:
        raise Exception("It's temporarily unsupported given_format: " + given_format)
    start = 0
    end = interval_secs
    i = 0
    while end < len(raw_sound):
        save_to = save_path + sample_folder_name + "/" + name + str(i)
        part = raw_sound[start:end]
        part.export(save_to, format=export_format)
        i += 1
        start += interval_secs
        end += interval_secs
    return save_path + sample_folder_name

def slice_all_in_a_dir(tracks_folder: str):
    files = os.listdir(tracks_folder)
    for file in files:
        folder_name = file.split('.')
        f_name = folder_name[0]
        file = tracks_folder+'/'+file
        file = os.path.abspath(file)
        slice_samples(track_path= [file],
                      save_path= PATH_FOR_SLICED,
                      sample_folder_name= f_name,
                      interval=5,
                      given_format=folder_name[1])

if __name__ == "__main__":
    slice_all_in_a_dir('May 27 2020 LNC/Hydrophone 1/raw_records')