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• avcodec/v4l2_context : Finish draining if V4L2_BUF_FLAG_LAST is set

  10 mai 2020, par Andriy Gelman

  avcodec/v4l2_context : Finish draining if V4L2_BUF_FLAG_LAST is set
  V4L2 api can indicate that flushing of the capture buffers is completed
  
  by setting the V4L2_BUF_FLAG_LAST flag.
  
  Use guards because the flag was only defined in Linux v4.2.
  Reference :
  
  linux/Documentation/media/uapi/v4l/dev-decoder.rst
      "The client must continue to handle both queues independently,
  
       similarly to normal decode operation. This includes :
  
       ...
  
       - queuing and dequeuing CAPTURE buffers, until a buffer marked with
  
         the V4L2_BUF_FLAG_LAST flag is dequeued"
  Reviewed-by : Ming Qian <ming.qian@nxp.com>
  
  Signed-off-by : Andriy Gelman <andriy.gelman@gmail.com>
  

  • [DH] libavcodec/v4l2_context.c

• avcodec/v4l2_buffers : don't prevent enqueue capture buffer to driver

  16 mars 2020, par Ming Qian

  avcodec/v4l2_buffers : don't prevent enqueue capture buffer to driver
  Enqueue/dequeue of the capture buffers should continue while draining.
  Reference : linux/Documentation/media/uapi/v4l/dev-decoder.rst
      "The client must continue to handle both queues independently,
  
       similarly to normal decode operation. This includes :
  
       ...
  
       - queuing and dequeuing CAPTURE buffers, until a buffer marked with
  
         the V4L2_BUF_FLAG_LAST flag is dequeued"
  Signed-off-by : Ming Qian <ming.qian@nxp.com>
  
  Signed-off-by : Andriy Gelman <andriy.gelman@gmail.com>
  

  • [DH] libavcodec/v4l2_buffers.c

• Why does this ffmpeg,exe window keep opening when I run my command ?

  5 avril 2020, par John

  I'm making a discord bot and for this aspect of the bot, I wanted it to play music in the voice channel. Here is my code for it :

  



  @client.command(pass_context=True)
async def play(ctx, url: str):

    song_there = os.path.isfile("song.mp3")
    try:
        if song_there:
            os.remove("song.mp3")
            print("Removed old song file")
    except PermissionError:

        await ctx.send("`There's already a song playing, request your song after!`")
        return

    await ctx.send("`Getting your song ready...`")

    voice = get(client.voice_clients, guild=ctx.guild)

    ydl_opts = {
        'format': 'bestaudio/best',
        'postprocessors': [{
            'key': 'FFmpegExtractAudio',
            'preferredcodec': 'mp3',
            'preferredquality': '192',
        }],
    }

    with youtube_dl.YoutubeDL(ydl_opts) as ydl:
        try:
            print("Downloading audio now\n")
            ydl.download([url])
        except:
            await ctx.send("`Error, that was not a valid url.`")
            return

    for file in os.listdir("./"):
        if file.endswith(".mp3"):
            name = file
            os.rename(file, "song.mp3")

    voice.play(discord.FFmpegPCMAudio("song.mp3"), after=lambda e: print("Song done!"))
    await ctx.send("`Everything went well. Enjoy!`")
    voice.source = discord.PCMVolumeTransformer(voice.source)
    voice.source.volume = 0.07

    nname = name.rsplit("-", 2)
    await ctx.send(f"`Playing: {nname[0]}`")
    print("playing\n")


  



  I got most of it from online sources to be honest. However, whenever someone plays a song, this pops up throughout the song download process. It can be seen here : https://imgur.com/a/iRr0qwj

  



  I don't mind them coming up, but when they do, they override all of my other tabs and pop up so they're the main screen. I'd like for them to pop up in the background, if I can't remove them fully. Can anyone help ? This would be pretty unpractical for me for when multiple use the function, and I can't use my computer anymore (as of now the bot is ran on my computer) without constantly minimizing that screen.

  



  I'm using windows 10, Python 3.7