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Sur d’autres sites (11648)

  • Downloading youtube mp3 - metadata encoding issue (python, youtube-dl, ffmpeg)

    21 mai 2015, par mopsiok

    I’m trying to download audio from youtube with youtube-dl.exe and ffmpeg.exe (Windows 7), but I am having some troubles with encoding. I have to parse metadata manually, because when I try to use

    --metadata-from-title "%(artist) - %(title)" --extract-audio --audio-format mp3 https://www.youtube.com/watch?v=DaU94Ld3fuM

    I get ERROR : Could not interpret title of video as "%(artist) - %(title)"

    Anyway, I wrote some code to save metadata with ffmpeg :

    def download(url, title_first=False):
    
    if (0 == subprocess.call('youtube-dl --extract-audio --audio-format mp3 %s' % url)):
    
        #saves file in current directory in format: VID_TITLE-VID_ID.mp3
    
        video_id = url[url.find('=')+1:] #video id from URL (after ?v=)
    
        for f in os.listdir('.'):
    
            if video_id in f:
    
                filename = f
    
                break
    
        os.rename(filename, video_id+'.mp3') #name without non-ascii chars (for tests)
    
        video_title = filename[: filename.find(video_id)-1]
    

    
        output = video_title + '.mp3'
    
        title, artist = '', ''
    
        try: #parsing the title
    
            x = video_title.find('-')
    
            artist = video_title[:x].strip()
    
            title = video_title[x+1:].strip()
    
            if (title_first): output = '%s - %s.mp3' % (title, artist)
    
        except:
    
            pass
    

    
        x = 'ffmpeg -i "%s" -metadata title="%s" -metadata artist="%s" -acodec copy -id3v2_version 3 -write_id3v1 1 "%s"' \
    
                        % (video_id+'.mp3', title, artist, output)
    
        print x
    
        subprocess.call(x)

    The file is downloaded and then cropped to given start and duration times (the code above is a simplified version). Filename is fine, but when I open the file with AIMP3, it shows rubbish instead of non-ascii characters :

    enter image description here

    I’ve tried to re-encode the final command with iso-8859-2, utf-8 and mbcs :

    x = x.decode('cp1250').encode('iso-8859-2')

    But non-ascii chars are still not readable. Passing an unicode command returns UnicodeEncodeError...

    Any idea how to solve this problem ?

  • How to give effects in video by FFMPEG in Node JS [on hold]

    18 juin 2015, par Nourin Hamid

    I am working with ffmpeg. I want to give effects in video like grayscale,Sepia,Blur in video. Also I want to add text in those videos. How can I make this with ffmpeg in node js.

  • FFmpeg package for Apple Silicon [closed]

    2 mai 2022, par gil_mo

    I'm in the process of porting all of our code to Apple M1 (ARM), and some of our products use FFmpeg.
Are there any library packages by FFmpeg that are built for the Apple Silicon M1, and where can I find them ?

    


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