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• ffmpeg multiple overlays at different times

  14 octobre 2017, par TheOctagon

  I have written a bash script which cycles through various RTMP live streams and switches every thirty seconds.
  I have a PNG sequence which plays at the start of the video (blindRev-%d.png). A blind is pulled up, revealing the stream.

  28 seconds later, I would like it to come back down to cover the stream so that when the next stream is loaded, it retracts to reveal the next stream in sequence once again (blind-%d.png). I’ve tried using itsoffset to accomplish this. No audio is required.

  However, only the first PNG sequence is played, the second never seems to happen.

  The command I am using is :

  ffmpeg -i rtmp://localhost/live/$stream -i blind/blindRev-%d.png -itsoffset 28 -i blind/blind-%d.png -filter_complex overlay -an -f flv rtmp://localhost/live/All

  What am I doing incorrectly ?
  Many thanks.

• FFMPEG, last message repeated 1 times

  30 octobre 2023, par byeolki

  def play_queue(self, id:str, title:str):
    music_data = Music_Data(self.inter.guild)
    FFMPEG_OPTIONS = {'options': '-vn'}
    ydl_opts = {'format': 'bestaudio'}
    if not music_data.check_guild() or not music_data.is_playing():
        with yt_dlp.YoutubeDL(ydl_opts) as ydl:
            info = ydl.extract_info(f'https://www.youtube.com/watch?v={id}', download=False)
        URL = info['url']
        music_data.start_music(id, title, self.inter, self.voice_channel)
        self.voice_client.play(source=nextcord.FFmpegPCMAudio(URL, **FFMPEG_OPTIONS), after=lambda e: asyncio.run_coroutine_threadsafe(self.next_play(), self.client.loop))
        return True
    else:
        music_data.add_queue(id, title, self.inter)
        return False


  


  It's My source
my module : yt-dlp

  


  It originally worked well.
How fix ?

  


• Setting HLS segment times

  16 février 2016, par James Townsend

  I am passing a processed video from openCV to ffmpeg via a pipe here is the code

  ./OpenCV & \
  
   tail -n +0 -f out.avi  | ffmpeg -i pipe:0  -hls_time 1 -hls_list_size 0 -hls_wrap 10 -hls_segment_filename '%03d.ts' stream.m3u8 

  My issue is the output .ts files are not in a uniformed duration they change from file to file.

  These are mostly long say 60 seconds. This means the connecting client has to wait for the first stream to finish before the playlist file (.m3u8) file is created. Therefor in this example they are 60 seconds or so behind live video and if the next .ts file is larger the streaming stops until this is finished. If the client tries to play before the next .ts file is created they are played the first .ts file.

  The frame rate from openCV is 1 frame per second.

  tail changes the output file of openCV called (out.avi) to a stdout.

  Any help would be great.