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• Can't play MP4 after download

  14 août 2018, par joe

  I am using a downloader program in Firefox to download videos playing in Firefox. Most of the time final MP4 is playable. But sometimes I get MP4 file that looks good(shows file size) but shows no length of video in file explorer.

  I get this error log.

  Could not get information from media 'ESPN 2 (HD) Live Stream Channel' from file 'C:\Download\dwHelper\ESPN 2 (HD) Live Stream Channel.mp4'. The file might be corrupted.
  
  
  
  {
  
      "file": "C:\\Download\\dwHelper\\ESPN 2 (HD) Live Stream Channel.mp4",
  
      "stat": {
  
          "dev": 3831878042,
  
          "mode": 33206,
  
          "nlink": 1,
  
          "uid": 0,
  
          "gid": 0,
  
          "rdev": 0,
  
          "ino": 9007199254752056,
  
          "size": 610722524,
  
          "atimeMs": 1534241605017.09,
  
          "mtimeMs": 1534241604156.685,
  
          "ctimeMs": 1534241604426.08,
  
          "birthtimeMs": 1534237675494.6475,
  
          "atime": "2018-08-14T10:13:25.017Z",
  
          "mtime": "2018-08-14T10:13:24.157Z",
  
          "ctime": "2018-08-14T10:13:24.426Z",
  
          "birthtime": "2018-08-14T09:07:55.495Z"
  
      }
  
  }
  
  Exit code: 1
  
  ffprobe version n4.0-1-gdc49a24-vdhcoapp Copyright (c) 2007-2018 the FFmpeg developers

  built with gcc 5.3.1 (GCC) 20160211

  configuration : —cross-prefix=x86_64-w64-mingw32- —sysroot=/usr/x86_64-w64-mingw32/ —extra-ldflags=-static-libgcc —target-os=mingw32 —arch=x86_64 —prefix=/home/mig/vdhcoapp/converter/src-build/win/64/converter-build —extra-version=vdhcoapp —extra-cflags=-I/home/mig/vdhcoapp/converter/src-build/win/64/deps/include —extra-ldflags=’-static-libgcc -L/home/mig/vdhcoapp/converter/src-build/win/64/deps/lib -L/home/mig/vdhcoapp/converter/src-build/win/64/zlib’ —extra-libs=-lpthread —pkg-config=/usr/bin/x86_64-w64-mingw32-pkg-config —enable-shared —enable-gpl —enable-pthreads —disable-w32threads —enable-libmp3lame —enable-libopenjpeg —enable-libopus —enable-libtheora —enable-libvorbis —enable-libvpx —enable-libwebp —enable-libx265 —enable-libxvid —enable-libx264 —enable-avresample —disable-doc

  libavutil 56. 14.100 / 56. 14.100

  libavcodec 58. 18.100 / 58. 18.100

  libavformat 58. 12.100 / 58. 12.100

  libavdevice 58. 3.100 / 58. 3.100

  libavfilter 7. 16.100 / 7. 16.100

  libavresample 4. 0. 0 / 4. 0. 0

  libswscale 5. 1.100 / 5. 1.100

  libswresample 3. 1.100 / 3. 1.100

  libpostproc 55. 1.100 / 55. 1.100

  [mov,mp4,m4a,3gp,3g2,mj2 @ 00000000024c3900] moov atom not found

  C :\Download\dwHelper\ESPN 2 (HD) Live Stream Channel.mp4 : Invalid data found when processing input

  It looks like moov atom is missing thus can’t aggregate PART file into final playable MP4.

  I understand that during download, PART file is created. Then later PART is aggregated into final MP4.

  So question is how can I make this MP4 to play ?
  or is it impossible to play cus moov atom was not properly downloaded ?

  Any thoughts ?
  Thanks

• trying to play audio from youtube with ffmpeg on discord.py rewrite

  13 septembre 2021, par Bobby Cook

  im trying to use a discord bot that plays music, but im getting errors when i run this code and python crashes, and i cant quite figure out whats wrong, except for that its around the @client.command(pass_context=True) async def play(self, ctx, *, url): print(url) server = ctx.message.guild voice_channel = server.voice_client
block. the i apologize for wasting all your time, im really bad at this, and i didnt even write most of this.

  


  import random
import youtube_dl
from discord.ext import commands
from discord.ext import tasks

client = commands.Bot(command_prefix = 'f!')

@client.command()
async def join(ctx):
    channel = ctx.message.author.voice.channel
    await channel.connect()

@client.command()
async def leave(ctx):
    await ctx.voice_client.disconnect()

youtube_dl.utils.bug_reports_message = lambda: ''


ytdl_format_options = {
    'format': 'bestaudio/best',
    'outtmpl': '%(extractor)s-%(id)s-%(title)s.%(ext)s',
    'restrictfilenames': True,
    'noplaylist': True,
    'nocheckcertificate': True,
    'ignoreerrors': False,
    'logtostderr': False,
    'quiet': True,
    'no_warnings': True,
    'default_search': 'auto',
    'source_address': '0.0.0.0' # bind to ipv4 since ipv6 addresses cause issues sometimes
}

ffmpeg_options = {
    'options': '-vn'
}

ytdl = youtube_dl.YoutubeDL(ytdl_format_options)

class YTDLSource(discord.PCMVolumeTransformer):
    def __init__(self, source, *, data, volume=0.5):
        super().__init__(source, volume)

        self.data = data

        self.title = data.get('title')
        self.url = data.get('url')

    @classmethod
    async def from_url(cls, url, *, loop=None, stream=False):
        loop = loop or asyncio.get_event_loop()
        data = await loop.run_in_executor(None, lambda: ytdl.extract_info(url, download=not stream))

        if 'entries' in data:
            # take first item from a playlist
            data = data['entries'][0]

        filename = data['url'] if stream else ytdl.prepare_filename(data)
        return cls(discord.FFmpegPCMAudio(filename, **ffmpeg_options), data=data)

        async with ctx.typing():
            player = await YTDLSource.from_url(url, loop=self.bot.loop)
            ctx.voice_channel.play(player, after=lambda e: print('Player error: %s' % e) if e else None)
        await ctx.send('Now playing: {}'.format(player.title))

@client.command(pass_context=True)
   async def play(self, ctx, *, url):
       print(url)
       server = ctx.message.guild
       voice_channel = server.voice_client


  


• Android cannot play a video, but PC can [duplicate]

  6 juin 2018, par CoXier

  This question already has an answer here :

  • flvEncoder .flv output won’t convert to .mp4 with ffmpeg [duplicate]
    
    1 answer
    
  • FFPLAY shows video, but FFMPEG just shows black
    
    1 answer
    
  • FFmpeg converting image sequence to video results in blank video [closed]
    
    1 answer
    
  • ffmpeg file conversion unreadable [closed]
    
    1 answer
    

  I use ffmpeg to convert gif to mp4 on Android. And part of configuration is :

   --disable-encoders \
  
   --disable-decoders \
  
   --enable-small \
  
   --enable-encoder=libx264 \
  
   --enable-encoder=flv \
  
   --enable-encoder=opus \
  
   --enable-encoder=gif \
  
   --enable-decoder=h264 \
  
   --enable-decoder=flv \
  
   --enable-decoder=opus \
  
   --enable-decoder=gif \

  However I can not play the output mp4 on Android. But pc can play it.

  ffmpeg -i output.mp4

  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'output.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: isomiso2avc1mp41
  
      encoder         : Lavf58.12.100
  
    Duration: 00:00:09.73, start: 0.000000, bitrate: 330 kb/s
  
      Stream #0:0(und): Video: h264 (High 4:4:4 Predictive) (avc1 / 0x31637661), yuv444p, 280x174, 328 kb/s, 11 fps, 11 tbr, 11264 tbn, 22 tbc (default)
  
      Metadata:
  
        handler_name    : VideoHandler

  Is there anything wrong ?