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• Block YouTube from source page when trying to download a video with youtube-dl

  18 mars 2018, par user3108268

  E.g. example.com/1 has a video hosted, you run youtube-dl example.com/1 and it all works fine, the video gets downloaded.

  E.g. example.com/2 also has a video, but it also has a YouTube trailer. If you run youtube-dl example.com/2 the hosted video gets completely ignored and only YouTube trailer gets downloaded.

  From what I see in the log is that the wanted local video playlist gets downloaded first and then ignored by getting overwritten by embedded YouTube playlist download.

  You can’t even get the url with --get-url or get format with --list-formats. It always prints the googlevideos URL for the YouTube trailer and lists only the YouTube trailer formats.

  I did manage to pull out the local video URL via --dump-pages and decoding the base64 encoded source. But the problem is that the URL contains a unique token each time the page example.com/2 is called, so passing the unique one-time video URL like e.g. example.com/2/video.php ?token=asdf to youtube-dl won’t download the video.

  So I figured somehow I need to bypass the YouTube trailer source and playlist when calling youtube-dl example.com/2 and trying to download local video and not the YouTube trailer.

• Fast FFMPEG Convert to MP3 and Download Using PHP

  17 août 2016, par dickecil

  I using this command below to convert .m4a file into .mp3 file

  system( "ffmpeg -i " . $m4a . " -ar 44100 -ab 128k -ac 2 " . $mp3 );

  But it take up to 30 second until can downloadable using php.

  Any idea to make it faster (like 2-5 second only) ?

• How to download a part of mp3 from server ?

  20 août 2020, par Sharukh Mohammed

  Use Case

  


  My use case is roughly equal to, adding a 15-second mp3 file to a 1 min video. All transcoding merging part will be done by FFmpeg-android so that's not the concern right now.

  


  The flow is as follows

  


  

  • User can select any 15 seconds (ExoPlayer-streaming) of an mp3 (considering 192Kbps/44.1KHz of 3mins = up to 7MB)

  


  • Then download ONLY the 15 second part and add it to the video's audio stream. (using FFmpeg)

  


  • Use the obtained output

  


  


  Tried solutions

  


  


  • Extracting fragment of audio from a url

    


    RANGE_REQUEST - I have replicated the exact same algorithm/formula in Kotlin using the exact sample file provided. But the output is not accurate (± 1.5 secs * c) where c is proportional to startTime

    


  


  • How to crop a mp3 from x to x+n using ffmpeg ?

    


    FFMPEG_SS - This works flawlessly with remote URLs as input, but there are two downsides,

    


    

    1. as startTime increases, the size of downloaded bytes are closer to the actual size of the mp3.

    


    2. ffmpeg-android does not support network requests module (at least the way we complied)

    


    


  


  


  So above two solutions have not been fruitful and currently, I am downloading the whole file and trimming it locally, which is definitely a bad UX.
I wonder how Instagram's music addition to story feature works because that's close to what I wanted to implement.