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• Repairing File (Have raw h264 and aac)

  13 juin 2015, par Ben

  I have a mp4 file that was never finalized. So what I did was extract the raw h264 stream and the aac file as well. How do I go about creating these in a playable mp4 file ? Or if there is a better fix to an uninitialized mp4 file (recorded using OBS) let me know.

  The file I’m trying to fix is named repair for reference.

• .exe file, works different than .py file

  29 août 2024, par r_b

  I've made the YouTube Dowbloader App. Everything is working properly (run in PyCharm), but when I try to make it into an executable with pyinstaller, it does not work.

  


  This is the link to the repo :

  


  YouTube Downloader

  


  Command for making exe file :
pyinstaller project.spec

  


  project.spec file :

  


  # project.spec
# -*- mode: python ; coding: utf-8 -*-

block_cipher = None

a = Analysis(
    ['gui.py'],
    pathex=['.'],
    binaries=[],
    datas=[('static_files/*', 'static_files')],
    hiddenimports=[],
    hookspath=[],
    runtime_hooks=[],
    excludes=[],
    win_no_prefer_redirects=False,
    win_private_assemblies=False,
    cipher=block_cipher,
)
pyz = PYZ(a.pure, a.zipped_data, cipher=block_cipher)

exe = EXE(
    pyz,
    a.scripts,
    [],
    exclude_binaries=True,
    name='YouTube Downloader',
    debug=False,
    bootloader_ignore_signals=False,
    strip=False,
    upx=True,
    upx_exclude=[],
    runtime_tmpdir=None,
    console=False,
    icon='static_files/logo.ico'
)
coll = COLLECT(
    exe,
    a.binaries,
    a.zipfiles,
    a.datas,
    strip=False,
    upx=True,
    upx_exclude=[],
    name='YouTube Downloader'
)

app = BUNDLE(
    coll,
    name='YouTube Downloader',
    icon='static_files/logo.ico',
    bundle_identifier=None
)


  


  The file structure :

  


  project/
├── backend.py
├── gui.py
├── temp_mp3 # temporary mp3 for Audio player
├── static_files/
│   ├── icon.ico
│   ├── image1.png
│   ├── image2.png
│   └── setup.json  # setup.json file
└── project.spec


  


  Search block diagram :
Search block diagram

  


  After searching and fetching the YouTube URL, the app downloads an MP3 file (in temp_mp3) for the audio player section.

  


  And here is the difference between .exe and the .py, when I run .exe the APP downloads the audio segment from the URL in .webm format and stops there. Even if the format is different, it should be converted to MP3 (in PyCharm does).

  


  Find possible problem with moviepy/ffmpeg.exe (library for converting files).

  


  project.spec

  


  a = Analysis(
    ['gui.py'],
    pathex=['.'],
    binaries=[('C:\\path\\to\\ffmpeg\\bin\\ffmpeg.exe', 'ffmpeg')],
    datas=[('static_files/*', 'static_files')],


  


  Added binaries => path to ffmpeg.exe , but it still doesn't work.

  


• file decoded with ffmpeg has different CRC to file decoded with flac.exe

  17 mars 2020, par Cdizzle

  Decoding the same .flac file (24-bit/48khz, 5.1 audio) with flac.exe, and then decoding the same .flac with ffmpeg results in two .wav files that have different CRC-32 values.

  Command for decoding with flac.exe :
  flac -d input.flac

  Command for decoding with ffmpeg :
  ffmpeg -i input.flac -c:a pcm_s24le output.wav

  Both of the resulting flac files are 24-bit signed little endian PCM files, at 48khz. Both are the exact same size on disk, but they do not have the same CRC-32 values. What am I doing wrong ?

  OS : Windows 10 1909

  flac version : 1.3.2

  ffmpeg build : ffmpeg-20200312-675bb1f-win64-static