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• FFMPEG not concatenating webm videos on centos | Only VP8 or VP9 video and Vorbis or Opus audio and WebVTT subtitles are supported for WebM

  28 février 2019, par Saurabh Sharma

  I’m trying to concat multiple .webm videos into single video using ffmpeg on centos 7 server. I have txt file like :
  video.txt

  file upload_0d62886ccceb71117f93e08f6ce40ed4.webm
  
  file upload_0dc5935ea564aa105484b17cf0eae2cb.webm
  
  file upload_0dc89839a1cb1d1cb84649c966b03f9b.webm
  
  file upload_eefa16438205bcead017145b7d15ec58.webm

  I’m using below command for concat :

  ffmpeg -f concat -safe 0 -i video.txt -c copy output.webm

  Then I got the following output

  ffmpeg version 2.8.15 Copyright (c) 2000-2018 the FFmpeg developers
  
  built with gcc 4.8.5 (GCC) 20150623 (Red Hat 4.8.5-28)
  
  configuration: --prefix=/usr --bindir=/usr/bin --datadir=/usr/share/ffmpeg - 
  
  -incdir=/usr/include/ffmpeg --libdir=/usr/lib64 --mandir=/usr/share/man -- 
  
  arch=x86_64 --optflags='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 - 
  
  fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc- 
  
  switches -m64 -mtune=generic' --extra-ldflags='-Wl,-z,relro ' --enable- 
  
  libopencore-amrnb --enable-libopencore-amrwb --enable-libvo-amrwbenc -- 
  
  enable-version3 --enable-bzlib --disable-crystalhd --enable-gnutls --enable- 
  
  ladspa --enable-libass --enable-libcdio --enable-libdc1394 --disable- 
  
  indev=jack --enable-libfreetype --enable-libgsm --enable-libmp3lame -- 
  
  enable-openal --enable-libopenjpeg --enable-libopus --enable-libpulse -- 
  
  enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora 
  
  --enable-libvorbis --enable-libv4l2 --enable-libx264 --enable-libx265 -- 
  
  enable-libxvid --enable-x11grab --enable-avfilter --enable-avresample -- 
  
  enable-postproc --enable-pthreads --disable-static --enable-shared --enable- 
  
  gpl --disable-debug --disable-stripping --shlibdir=/usr/lib64 --enable- 
  
  runtime-cpudetect
  
  libavutil      54. 31.100 / 54. 31.100
  
  libavcodec     56. 60.100 / 56. 60.100
  
  libavformat    56. 40.101 / 56. 40.101
  
  libavdevice    56.  4.100 / 56.  4.100
  
  libavfilter     5. 40.101 /  5. 40.101
  
  libavresample   2.  1.  0 /  2.  1.  0
  
  libswscale      3.  1.101 /  3.  1.101
  
  libswresample   1.  2.101 /  1.  2.101
  
  libpostproc    53.  3.100 / 53.  3.100

  Input #0, concat, from ’video.txt’ :
  Duration : N/A, start : 0.000000, bitrate : N/A
  Stream #0:0(eng) : Audio : opus, 48000 Hz, mono, fltp
  Stream #0:1(eng) : Video : h264 (Constrained Baseline), yuv420p, 640x480, SAR
  1:1 DAR 4:3, 30.30 fps, 30 tbr, 1k tbn, 60 tbc
  [webm @ 0x708120] Codec for stream 0 does not use global headers but
  container format requires global headers
  [webm @ 0x708120] Codec for stream 1 does not use global headers but
  container format requires global headers
  [webm @ 0x708120] Only VP8 or VP9 video and Vorbis or Opus audio and WebVTT
  subtitles are supported for WebM.
  Output #0, webm, to ’output.webm’ :
  Metadata :
  encoder : Lavf56.40.101
  Stream #0:0(eng) : Video : h264, yuv420p, 640x480 [SAR 1:1 DAR 4:3], q=2-31, 30.30 fps, 30 tbr, 1k tbn, 1k tbc
  Stream #0:1(eng) : Audio : opus, 48000 Hz, mono
  Stream mapping :
  Stream #0:1 -> #0:0 (copy)
  Stream #0:0 -> #0:1 (copy)
  Could not write header for output file #0 (incorrect codec parameters ?) :
  Invalid argument

• Small discord bot with a set of working music commands, about 6 days ago the play function completely stopped functioning (more below)

  24 février 2021, par TheColoradoKid

  It is a small discord python bot for my server with various features, which had included music commands until they stopped out of the blue without showing any error for the problem.
It uses FFMpeg, and youtubeDl along with pytube to gather the song and store it locally to play it, I have pip updated all of these and they are definitely on the current versions as I have made sure of this online.
Any help or insight anyone could provide would be greatly appreciated. I'm sorry if the code is convoluted in the way it's written I'm still pretty new to coding and this is one of my first proper larger projects.

  


  If you need any information I'm happy to give what I can to help.

  


  Here is the code for the play command :

  


  @client.command()
async def play(ctx, *args):
    global queu
    #global autom
    if not args:
        voice = get(client.voice_clients, guild=ctx.guild)
        if not voice.is_playing():
            server = ctx.message.guild
            voice_channel = server.voice_client
            if queu:
                async with ctx.typing():
                    player = await YTDLSource.from_url(queu[0], loop=client.loop)
                    voice_channel.play(player, after=lambda e: print('Player error: %s' % e) if e else None)

                await ctx.send('**Now playing:** {}'.format(player.title))
                del(queu[0])
                # while autom == True:
                #     try:
                #         a = client.get_command('auto')
                #         await ctx.invoke(a)
                #     except:
                #         print('')
            elif not queu:
                await ctx.send("You can't play if there isn't anything in the queue\nIf auto mode was on it has now been disabled, to use it gain please add to the queue and run ``;auto on``")
                autom = False
    if args:
        global gueu
        search_keywords = ""
        print(args)
        for word in args:
            search_keywords += word
            search_keywords += '+'
        link = "https://www.youtube.com/results?search_query="
        link += search_keywords
        #print(link)
        html = urllib.request.urlopen(link)
        video_ids = re.findall(r"watch\?v=(\S{11})", html.read().decode())
        url = ("https://www.youtube.com/watch?v=" + video_ids[0])
        #print(url)
        queu.append(url)
        #print(queu)
        await ctx.send("``{}`` added to queue!\n If the song doesn't start please either let the current song end and run ``;play``/``;next`` again or run ``;next`` to play now".format(url))
        try:
            p = client.get_command('play')
            await ctx.invoke(p)
        except:
            print('failed')


  


• nomenclature #2520 : extensions’ vs ’vérouillés

  25 mars 2012, par marcimat -

  J’ai fait un mix avec la phrase de Fil et celle qui y était avant (http://zone.spip.org/trac/spip-zone/changeset/59700). L’url de documentation sera a changer, mais je n’en ai point trouvé de correcte sur les extensions dans spip.net, juste un article global sur SPIP 2.1 je (...)