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• how to fix Error 'FFmpegPCMAudio' object has no attribute '_process'

  30 novembre 2023, par Ma Me

  from ast import alias
import discord
from discord.ext import commands
from youtubesearchpython import VideosSearch
from yt_dlp import YoutubeDL
import asyncio

class music_cog(commands.Cog):
    def __init__(self, bot):
        self.bot = bot
    
        #all the music related stuff
        self.is_playing = False
        self.is_paused = False

        # 2d array containing [song, channel]
        self.music_queue = []
        self.YDL_OPTIONS = {'format': 'bestaudio/best'}
        self.FFMPEG_OPTIONS = {'options': '-vn'}

        self.vc = None
        self.ytdl = YoutubeDL(self.YDL_OPTIONS)

     #searching the item on youtube
    def search_yt(self, item):
        if item.startswith("https://"):
            title = self.ytdl.extract_info(item, download=False)["title"]
            return{'source':item, 'title':title}
        search = VideosSearch(item, limit=1)
        return{'source':search.result()["result"][0]["link"], 'title':search.result()["result"][0]["title"]}

    async def play_next(self):
        if len(self.music_queue) > 0:
            self.is_playing = True

            #get the first url
            m_url = self.music_queue[0][0]['source']

            #remove the first element as you are currently playing it
            self.music_queue.pop(0)
            loop = asyncio.get_event_loop()
            data = await loop.run_in_executor(None, lambda: self.ytdl.extract_info(m_url, download=False))
            song = data['url']
            self.vc.play(discord.FFmpegPCMAudio(song, executable= "ffmpeg.exe", **self.FFMPEG_OPTIONS), after=lambda e: asyncio.run_coroutine_threadsafe(self.play_next(), self.bot.loop))
            
        else:
            self.is_playing = False

    # infinite loop checking 
    async def play_music(self, ctx):
        if len(self.music_queue) > 0:
            self.is_playing = True

            m_url = self.music_queue[0][0]['source']
            #try to connect to voice channel if you are not already connected
            if self.vc == None or not self.vc.is_connected():
                self.vc = await self.music_queue[0][1].connect()

                #in case we fail to connect
                if self.vc == None:
                    await ctx.send("```Could not connect to the voice channel```")
                    return
            else:
                await self.vc.move_to(self.music_queue[0][1])
            #remove the first element as you are currently playing it
            self.music_queue.pop(0)
            loop = asyncio.get_event_loop()
            data = await loop.run_in_executor(None, lambda: self.ytdl.extract_info(m_url, download=False))
            song = data['url']
            self.vc.play(discord.FFmpegPCMAudio(song, executable= "ffmpeg.exe", **self.FFMPEG_OPTIONS), after=lambda e: asyncio.run_coroutine_threadsafe(self.play_next(), self.bot.loop,))
        else:
            self.is_playing = False

    @commands.command(name="play", aliases=["p","playing"], help="Plays a selected song from youtube")
    async def play(self, ctx, *args):
        query = " ".join(args)
        try:
            voice_channel = ctx.author.voice.channel
        except:
            await ctx.send("```You need to connect to a voice channel first!```")
            return
        if self.is_paused:
            self.vc.resume()
        else:
            song = self.search_yt(query)
            if type(song) == type(True):
                await ctx.send("```Could not download the song. Incorrect format try another keyword. This could be due to playlist or a livestream format.```")
            else:
                if self.is_playing:
                    await ctx.send(f"**#{len(self.music_queue)+2} -'{song['title']}'** added to the queue") 
                else:
                    await ctx.send(f"**'{song['title']}'** added to the queue")  
                self.music_queue.append([song, voice_channel])
                if self.is_playing == False:
                    await self.play_music(ctx)


    @commands.command(name="pause", help="Pauses the current song being played")
    async def pause(self, ctx, *args):
        if self.is_playing:
            self.is_playing = False
            self.is_paused = True
            self.vc.pause()
        if self.is_paused:
            self.vc.resume()
            self.is_playing = True
            self.is_paused = False

    @commands.command(name = "resume", aliases=["r"], help="Resumes playing with the discord bot")
    async def resume(self, ctx, *args):
        if self.is_paused:
            self.is_paused = False
            self.is_playing = True
            self.vc.resume()

    @commands.command(name="skip", aliases=["s"], help="Skips the current song being played")
    async def skip(self, ctx):
        if self.vc != None and self.vc:
            self.vc.stop()
            #try to play next in the queue if it exists
            await self.play_music(ctx)


    @commands.command(name="queue", aliases=["q"], help="Displays the current songs in queue")
    async def queue(self, ctx):
        retval = ""
        for i in range(0, len(self.music_queue)):
            retval += f"#{i+1} -" + self.music_queue[i][0]['title'] + "\n"

        if retval != "":
            await ctx.send(f"```queue:\n{retval}```")
        else:
            await ctx.send("```No music in queue```")

    @commands.command(name="clear", aliases=["c", "bin"], help="Stops the music and clears the queue")
    async def clear(self, ctx):
        if self.vc != None and self.is_playing:
            self.vc.stop()
        self.music_queue = []
        await ctx.send("```Music queue cleared```")

    @commands.command(name="stop", aliases=["disconnect", "l", "d"], help="Kick the bot from VC")
    async def dc(self, ctx):
        self.is_playing = False
        self.is_paused = False
        await self.vc.disconnect()
    
    @commands.command(name="remove", help="Removes last song added to queue")
    async def re(self, ctx):
        self.music_queue.pop()
        await ctx.send("```last song removed```")


  


  I think everything is good but there is no sound Can you give me some advice ?
  
it python code

  


• fate/mov : force the native av1 decoder for the avif tests

  9 janvier 2024, par James Almer

  fate/mov : force the native av1 decoder for the avif tests
  Signed-off-by : James Almer <jamrial@gmail.com>
  

  • [DH] tests/fate/mov.mak
  • [DH] tests/ref/fate/mov-avif-demux-still-image-1-item
  • [DH] tests/ref/fate/mov-avif-demux-still-image-multiple-items

• Unable to extract KLV data from .mpg file

  2 novembre 2023, par Arjun Shastry

  I need to extract the klv data embedded in the following file :
https://samples.ffmpeg.org/MPEG2/mpegts-klv/Day%20Flight.mpg

  


  Currently, I am doing it using ffmpeg and python.
The code works for .ts files like the example given below, but not the above mpg file. :
https://www.arcgis.com/home/item.html?id=55ec6f32d5e342fcbfba376ca2cc409a

  


  I used the following python command, using subprocess, ffmpeg to extract klv data in a binary file and then using klvdata library to tranlate to a readable text file.

  


  #Extract klv data and output as binary file
command=['ffmpeg', '-i', input_video, '-map', 'd','-codec','copy','-f', 'data','out.bin']
process=subprocess.Popen(command, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
stdout, stderr = process.communicate()

print(stdout)
print(stderr)

#Open text file to write json data
outjson=open("./outjson.txt","w")
print("Flag 1")

# Open the out.bin file for reading as binary
with open("./out.bin", "rb") as f:
    sample=[]
    cnt=0
    for packet in klvdata.streamparser.StreamParser(f):
        pack=[]
        metadata = packet.MetadataList()
        for i in (5,6,7,13,14,15,18,19,23,24,25,26,27,28,29,30,31,32,33):#Only extracting required data
            pack.append(metadata[i][-1])
        sample.append(pack)
    sampleLength=(len(sample))
    json.dump(sample,outjson,indent=4) # Convert the metadata to a string and write it to outtext.txt


  


  When doing it for "Day Flight.mpg", the following error occurs :

  


  58. 19.100 / 58. 19.100\r\n  libavcodec     60. 26.100 / 60. 26.100\r\n  libavformat    60. 11.100 / 60. 11.100\r\n  libavdevice    60.  2.101 / 60.  2.101\r\n  libavfilter     9. 11.100 /  9. 11.100\r\n  libswscale      7.  3.100 /  7.  3.100\r\n  libswresample   4. 11.100 /  4. 11.100\r\n  libpostproc    57.  2.100 / 57.  2.100\r\n[mpegts @ 0000026bb99387c0] start time for stream 1 is not set in estimate_timings_from_pts\r\nInput #0, mpegts, from 'C:/Users/ashastry/Downloads/Day Flight.mpg':\r\n  Duration: 00:03:14.88, start: 10.000000, bitrate: 4187 kb/s\r\n  Program 1 \r\n  Stream #0:0[0x1e1]: Video: h264 (Main) ([27][0][0][0] / 0x001B), yuv420p(progressive), 1280x720, 60 fps, 60 tbr, 90k tbn\r\n  Stream #0:1[0x1f1]: Data: klv (KLVA / 0x41564C4B)\r\nOutput #0, data, to 'out.bin':\r\n  Metadata:\r\n    encoder         : Lavf60.11.100\r\n  Stream #0:0: Data: klv (KLVA / 0x41564C4B)\r\nStream mapping:\r\n  Stream #0:1 -> #0:0 (copy)\r\nPress [q] to stop, [?] for help\r\nsize=       0kB time=00:00:00.00 bitrate=N/A speed=N/A    \rsize=       0kB time=00:00:00.00 bitrate=N/A speed=   0x    \rsize=       1kB time=00:00:00.00 bitrate=N/A speed=   0x    \r[out#0/data @ 0000026bbb61b300] video:0kB audio:0kB subtitle:0kB other streams:1kB global headers:0kB muxing overhead: 0.000000%\r\nsize=       1kB time=00:00:00.00 bitrate=N/A speed=   0x    \r\n"
Flag 1
Traceback (most recent call last):

  File C:\ProgramData\anaconda3\Lib\site-packages\spyder_kernels\py3compat.py:356 in compat_exec
    exec(code, globals, locals)

  File c:\users\ashastry\desktop\gis\javascript\extract.py:34
    metadata = packet.MetadataList()

AttributeError: 'UnknownElement' object has no attribute 'MetadataList'