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• How to debug "Error in pull function & Input buffer exhausted" ?

  15 septembre 2021, par user16909319

  Introduction :

  


  I'm working on a Discord Music Bot for personal use only. Basically, when I play a 2min song with the bot, it plays the song for 1min 30secs, then skips it and plays the next one in the queue. The error is shown below :

  


  


  Error in Pull Function
  
IO error : Error number -10054 occurred
  
[mov,mp4,m4a,3gp,3g2,mj2 @ 0000018f86a6f4c0] Packet corrupt (stream = 0, dts = 11154432).
  
Input buffer exhausted before END element found
  
Invalid Data found when processing Input
  
[mov,mp4,m4a,3gp,3g2,mj2 @ 0000018f86a6f4c0] stream 0, offset 0x3e805c : partial file

  


  


  The code block which I think is causing the problem :

  


  Search song method

  


      async def search_song(self, amount, song, get_url=False):
        info = await self.bot.loop.run_in_executor(None, lambda: youtube_dl.YoutubeDL(ytdl_format_options).extract_info(
            f"ytsearch{amount}:{song}", download=False, ie_key="YoutubeSearch"))
        if len(info["entries"]) == 0: return None

        return [entry["webpage_url"] for entry in info["entries"]] if get_url else info


  


  Play_song method

  


      async def play_song(self, ctx, song):
        url = pafy.new(song).getbestaudio().url
        ctx.voice_client.play(discord.PCMVolumeTransformer(discord.FFmpegPCMAudio(url, executable="C:/ffmpeg/bin/ffmpeg.exe")),
                              after=lambda error: self.bot.loop.create_task(self.check_queue(ctx)))
        ctx.voice_client.source.volume = 0.5


  


  Formatting Options I provided :

  


  ytdl_format_options = {
    'format': 'bestaudio/best',
    'outtmpl': '%(extractor)s-%(id)s-%(title)s.%(ext)s',
    'restrictfilenames': True,
    'noplaylist': True,
    'nocheckcertificate': True,
    'ignoreerrors': True,
    'logtostderr': False,
    'quiet': True,
    'no_warnings': True,
    'default_search': 'auto',
    'source_address': '0.0.0.0'
}


  


  Solutions that I've tried :

  


  

  • Running it on both Replit and locally.

  


  • Redownloading FFmpeg

  


  • Ensuring FFmpeg, pafy, and youtube_dl are all up to date.

  


  


  Things to Note :

  


  

  • Playing a 2mins song, it stops after 1min 30 seconds and displays the error above. (75% of the song)

  


  • Playing a 1hr song, it still continues after 10 minutes.

  


  


  I do not have much experience in this yet so I'm not entirely sure where in my code is actually causing this issue or other ways which I can use to test and fix the issue.

  


• ffmpeg cut flv but resulting video cannot be processed on youtube

  20 avril 2017, par user1017674

  I am using a simple ffmpeg command to cut some videos.

  The command i ran is

  ffmpeg -i test.flv -ss 0 -to 60 -c copy output.flv

  The output.flv turns out is not processable on youtube, but I am able to play this file locally using a random flv player that I downloaded.

  This is the log when cutting the video.

  The original file test.flv can be found here.
  https://drive.google.com/open?id=0B5eHJIAbpaIYaW95ZlFTMTUzNGc

  The output file output.flv can be found here.
  https://drive.google.com/open?id=0B5eHJIAbpaIYejk5dGJTOEo1UU0

  ./ffmpeg -i test.flv -ss 0 -to 60 -c copy diablo.flv
  
  ffmpeg version 3.3 Copyright (c) 2000-2017 the FFmpeg developers
  
    built with llvm-gcc 4.2.1 (LLVM build 2336.11.00)
  
    configuration: --prefix=/Volumes/Ramdisk/sw --enable-gpl --enable-pthreads --enable-version3 --enable-libspeex --enable-libvpx --disable-decoder=libvpx --enable-libmp3lame --enable-libtheora --enable-libvorbis --enable-libx264 --enable-avfilter --enable-libopencore_amrwb --enable-libopencore_amrnb --enable-filters --enable-libgsm --enable-libvidstab --enable-libx265 --disable-doc --arch=x86_64 --enable-runtime-cpudetect
  
    libavutil      55. 58.100 / 55. 58.100
  
    libavcodec     57. 89.100 / 57. 89.100
  
    libavformat    57. 71.100 / 57. 71.100
  
    libavdevice    57.  6.100 / 57.  6.100
  
    libavfilter     6. 82.100 /  6. 82.100
  
    libswscale      4.  6.100 /  4.  6.100
  
    libswresample   2.  7.100 /  2.  7.100
  
    libpostproc    54.  5.100 / 54.  5.100
  
  Input #0, flv, from 'test.flv':
  
    Metadata:
  
      creator         : Coded
  
      metadatacreator : Yet Another Metadata Injector for FLV - Version 1.9
  
      hasKeyframes    : true
  
      hasVideo        : true
  
      hasAudio        : true
  
      hasMetadata     : true
  
      canSeekToEnd    : true
  
      datasize        : 69602014
  
      videosize       : 63600961
  
      audiosize       : 5917165
  
      lasttimestamp   : 292
  
      lastkeyframetimestamp: 292
  
      lastkeyframelocation: 69603218
  
    Duration: 00:04:51.68, start: 0.080000, bitrate: 1909 kb/s
  
      Stream #0:0: Video: h264 (High), yuv420p(progressive), 1280x720, 1742 kb/s, 25 fps, 25 tbr, 1k tbn, 50 tbc
  
      Stream #0:1: Audio: aac (LC), 48000 Hz, stereo, fltp, 158 kb/s
  
  Output #0, flv, to 'diablo.flv':
  
    Metadata:
  
      creator         : Coded
  
      metadatacreator : Yet Another Metadata Injector for FLV - Version 1.9
  
      hasKeyframes    : true
  
      hasVideo        : true
  
      hasAudio        : true
  
      hasMetadata     : true
  
      canSeekToEnd    : true
  
      datasize        : 69602014
  
      videosize       : 63600961
  
      audiosize       : 5917165
  
      lasttimestamp   : 292
  
      lastkeyframetimestamp: 292
  
      lastkeyframelocation: 69603218
  
      encoder         : Lavf57.71.100
  
      Stream #0:0: Video: h264 (High) ([7][0][0][0] / 0x0007), yuv420p(progressive), 1280x720, q=2-31, 1742 kb/s, 25 fps, 25 tbr, 1k tbn, 1k tbc
  
      Stream #0:1: Audio: aac (LC) ([10][0][0][0] / 0x000A), 48000 Hz, stereo, fltp, 158 kb/s
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (copy)
  
    Stream #0:1 -> #0:1 (copy)
  
  Press [q] to stop, [?] for help
  
  frame= 1252 fps=0.0 q=-1.0 Lsize=   12074kB time=00:00:59.98 bitrate=1648.8kbits/s speed=1.21e+03x    
  
  video:10849kB audio:1153kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.598021%

• Trim with transition/fade using FFMPEG given a list of timestamps

  19 janvier 2024, par realsarm

  I have a video and a list of timestamps that I want to filter.

  


  [
  {
    "timestamp": [10, 20],
    "state": true
  },
  {
    "timestamp": [30, 40],
    "state": false
  },
  {
    "timestamp": [50, 60],
    "state": true
  },
  {
    "timestamp": [70, 80],
    "state": true
  }
]


  


  I have a script like this to trim based on state.

  


      video_path = Path(video_in.name)
    video_file_name = video_path.stem

    timestamps_to_cut = [
        (timestamps_var[i]['timestamp'][0], timestamps_var[i]['timestamp'][1])
        for i in range(len(timestamps_var)) if timestamps_var[i]['state']]

    between_str = '+'.join(
        map(lambda t: f'between(t,{t[0]},{t[1]})', timestamps_to_cut))

    if timestamps_to_cut:
        video_file = ffmpeg.input(video_path)
        video = video_file.video.filter(
            "select", f'({between_str})').filter("setpts", "N/FRAME_RATE/TB")
        audio = video_file.audio.filter(
            "aselect", f'({between_str})').filter("asetpts", "N/SR/TB")

        output_video = f'./videos_out/{video_file_name}.mp4'
        ffmpeg.concat(video, audio, v=1, a=1).output(
            output_video).overwrite_output().global_args('-loglevel', 'quiet').run()


  


  How can I smooth out this trimming like adding a fade or smoothing transition each time state is false ?