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Sur d’autres sites (7019)

  • yt-dlp and ffmpeg CLI : dynamically naming output file using ${}

    14 juin 2022, par garson

    I'm trying to dynamically name the output created by running yt-dlp and piping to ffmpeg for further processing. Ideally I'd also like to preserve other metadata from the Youtube in the output mp4 file.

    


    What I have tried (working example)

    


    yt-dlp "https://www.youtube.com/watch?v=PtkqwslbLY8" -o - | /
ffmpeg -i - -vcodec libx264 -crf 23 -preset fast -profile:v /
baseline -level 3 -refs 6 -vf "scale=640:-1,pad=iw:480:0:(oh-ih)/2,/
format=yuv420p" -acodec copy ${%(title)s}out.mp4


    


    What the current result is

    


    However, this just creates a file called out.mp4, without anything of the earlier video title in the file name.

    


    What I want the result to be

    


    I want the result to be a file called something like Jupiter_101_National_Geographicout.mp4 (based on the title of the Youtube Video).

    


  • ffmpeg merge audio and video streams on the fly

    19 décembre 2022, par Kiko

    I'm trying to get a stream from Youtube and stream it via HTTP, but I have to use separate audio and video streams to get good quality. I don't know how to merge the streams on the fly with ffmpeg. (I'm using pytube)

    


    I know I can do this by saving the streams, then merging them, and then streaming the output, but I would like to do it on the fly. This is my current code (which uses the old progressive streams) :

    


    yt = YouTube(f"https://www.youtube.com/watch?v={url}")
video = yt.streams.filter(file_extension='mp4', progressive=True).first()
async def stream(response):
    for chunk in pytube_request.stream(video.url):
        await response.write(chunk)
return ResponseStream(stream, content_type="audio/mp4")


    


  • Use Ffmpeg to re-stream rtsp [closed]

    27 février 2024, par Wissam Elias

    I am trying to re-stream an rtsp connection using this command :

    


    ffmpeg -rtsp_transport tcp -i "rtsp://admin:admin@192.168.1.13:1935" -rtsp_transport tcp -c:v copy -f rtsp rtsp://192.168.1.10:1935


    


    i am sure that this rtsp connection is working : "rtsp ://admin:admin@192.168.1.13:1935".

    


    I have then tried, for testing purposes, using FFplay to watch the stream from localhost as follows :

    


    ffplay rtsp://192.168.1.10:1935


    


    but no it is not working -_-

    


    ffmpeg command result

    


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