LangChain Downloading data from youtube

Question

Im downloading data from youtube but facing an issue how can i fix it ?

i downloaded ffmpeg and set path to envirnment variable but didn't work loading data from youtube throug langchian documentloader see image to get more

Answer 1

It seems it's using yt_dlp.

Normally yt_dlp takes this path from command line argument --ffmpeg_location.

You can try one of the following:

• pass path to ffmpeg in --ffmpeg_location command line argument
• add ffmpeg dir PATH to PATH environment variable
• directly adjust parameters of langchain's parser instance of YoutubeAudioLoader

it's defaults are as follows:

        ydl_opts = {
            "format": "m4a/bestaudio/best",
            "noplaylist": True,
            "outtmpl": self.save_dir + "/%(title)s.%(ext)s",
            "postprocessors": [
                {
                    "key": "FFmpegExtractAudio",
                    "preferredcodec": "m4a",
                }
            ],
        }

you need to change postprocessors section to look like this:

  "postprocessors": [
                {
                    "key": "FFmpegExtractAudio",
                    "preferredcodec": "m4a",
                    "ffmpeg_location": "path_to_ffmpeg"

                }

• directly set parameter of ffmpegpostprocessor instance

from yt_dlp.postprocessor import FFmpegPostProcessor
FFmpegPostProcessor._ffmpeg_location.set(R'C:\...')