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How to separate the audio and video files downloaded from Bilibili and merge them into one video file?

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The project "Xlog" is currently in progress. There are three methods to merge video and audio files downloaded from Bilibili and create a single video file. The methods include using an online tool, a standalone synthesizer, or the ffmpeg software. Each method has specific steps to follow for successful merging of the files.
  • Method 1 (Online merging)
    • Bilibili Cache Audio and Video Merge Tool
    • Upload video and audio separately
    • After uploading is complete, click to start merging
    • Click to download the output video, it will be automatically saved to the original directory
  • Method 2 (Using [[Bilibili Cache Video Audio Merger 1.02.exe]])
    • This merger is portable, double click to run
    • Select the directory where the M4S audio and video files are located
    • Click merge to complete
  • Method 3 (Using ffmpeg for merging)
    • Download ffmpeg from https://ffmpeg.org/download.html
    • Extract ffmpeg.exe to C:\Windows\System32\
    • Place the downloaded video and audio files in the same folder
    • In the blank space of this folder, press shift and right-click to open a PowerShell command window
    • Enter the command ffmpeg -i video.m4s -i audio.m4s -codec copy output.mp4
    • Note: If the video.m4s file is downloaded in the highest quality by a VIP member, you need to open the video.m4s in EmEditor16 in hexadecimal mode, delete the "FFFFFF" at the beginning before merging.
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