Recherche avancée

Sur d’autres sites (14487)

• Cannot duplicate virtual camera on Orange Pi 5B [closed]

  21 janvier 2024, par Denis Kotov

  I have faced with the issue that I cannot duplicate virtual camera for SkyDroid 5.8GHz OTG Receiver on Orange Pi 5B :

  


  orangepi@orangepi-desktop:~$ gst-launch-1.0 v4l2src device=/dev/video0 ! xvimagesink device=/dev/video2

Setting pipeline to PAUSED ...
ERROR: from element /GstPipeline:pipeline0/GstXvImageSink:xvimagesink0: Could not initialise Xv output
Additional debug info:
../sys/xvimage/xvimagesink.c(1806): gst_xv_image_sink_open (): /GstPipeline:pipeline0/GstXvImageSink:xvimagesink0:
Could not open display (null)
ERROR: pipeline doesn't want to preroll.
Failed to set pipeline to PAUSED.
Setting pipeline to NULL ...
Freeing pipeline ...

orangepi@orangepi-desktop:~$ gst-launch-1.0 v4l2src device=/dev/video0 ! v4l2sink device=/dev/video2

Setting pipeline to PAUSED ...
ERROR: from element /GstPipeline:pipeline0/GstV4l2Sink:v4l2sink0: Cannot identify device '/dev/video2'.
Additional debug info:
../sys/v4l2/v4l2_calls.c(608): gst_v4l2_open (): /GstPipeline:pipeline0/GstV4l2Sink:v4l2sink0:
system error: No such file or directory
ERROR: pipeline doesn't want to preroll.
Failed to set pipeline to PAUSED.
Setting pipeline to NULL ...
Freeing pipeline ...


  


  Also I tried to duplicate video camera using ffmpeg :

  


  orangepi@orangepi-desktop:~$ sudo ffmpeg -f video4linux2 -i /dev/video0 -codec copy -f v4l2 /dev/video2

ffmpeg version 6.0-5+git230804.e243e8d001~j1 Copyright (c) 2000-2023 the FFmpeg developers
  built with gcc 11 (Ubuntu 11.4.0-1ubuntu1~22.04)
  configuration: --prefix=/usr --extra-version='5+git230804.e243e8d001~j1' --toolchain=hardened --libdir=/usr/lib/aarch64-linux-gnu --incdir=/usr/include/aarch64-linux-gnu --arch=arm64 --enable-gpl --disable-stripping --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libdav1d --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libglslang --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librabbitmq --enable-librist --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libssh --enable-libsvtav1 --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzimg --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opencl --enable-opengl --enable-version3 --enable-rkmpp --enable-sdl2 --disable-sndio --enable-pocketsphinx --enable-librsvg --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --enable-libplacebo --enable-shared
  libavutil      58.  2.100 / 58.  2.100
  libavcodec     60.  3.100 / 60.  3.100
  libavformat    60.  3.100 / 60.  3.100
  libavdevice    60.  1.100 / 60.  1.100
  libavfilter     9.  3.100 /  9.  3.100
  libswscale      7.  1.100 /  7.  1.100
  libswresample   4. 10.100 /  4. 10.100
  libpostproc    57.  1.100 / 57.  1.100
[mjpeg @ 0xaaab04104190] EOI missing, emulating
Input #0, video4linux2,v4l2, from '/dev/video0':
  Duration: N/A, start: 3317.330868, bitrate: N/A
  Stream #0:0: Video: mjpeg (Baseline), yuvj422p(pc, bt470bg/unknown/unknown), 640x480, 30 fps, 30 tbr, 1000k tbn
[video4linux2,v4l2 @ 0xaaab04105750] Unable to open V4L2 device '/dev/video2'
[out#0/video4linux2,v4l2 @ 0xaaab040b9200] Could not write header (incorrect codec parameters ?): No such file or directory
[vost#0:0/copy @ 0xaaab04107640] Error initializing output stream: 
Stream mapping:
  Stream #0:0 -> #0:0 (copy)
    Last message repeated 1 times
[video4linux2,v4l2 @ 0xaaab041039d0] Some buffers are still owned by the caller on close.
ioctl(VIDIOC_QBUF): Bad file descriptor


  


  But it also did not work ...

  


  The reason I want it, because I try to have additional processing using OpenCV but the camera is opened by another application, and it is not possible to similtuniuously open camera in 2 applications at the same time ...

  


  Have somebody faced with similar issue ?

  


• Convert from oga to mp3 using pydub : ffmpeg returned error code : 1

  29 juin 2023, par Juan David

  I want to take an OGA file within a binary stream and convert it into mp3 using also another stream. I'm getting a permissions error even with running VSCode as administrator. This is my code :

  


  from pydub import AudioSegment
AudioSegment.converter = "C:\\ProgramData\\chocolatey\\lib\\ffmpeg\\tools\\ffmpeg\\bin\\ffmpeg.exe"

input_stream = io.BytesIO()
input_stream.seek(0) 
await new_file.download_to_memory(input_stream)
 
# Create an audio segment from the binary stream
audio = AudioSegment.from_file(input_stream, format='ogg')

# Create an output stream for the MP3 data
output_stream = io.BytesIO()

# Export the audio to MP3 using ffmpeg and write the output to the stream
audio.export(output_stream, format='mp3', codec='libmp3lame')

# Get the MP3 data from the output stream
mp3_data = output_stream.getvalue()


  


  Error message :

  


    File "C:\ProgramData\Anaconda3\envs\chatbot\lib\site-packages\telegram\ext\_application.py", line 1124, in process_update
    await coroutine
  File "C:\ProgramData\Anaconda3\envs\chatbot\lib\site-packages\telegram\ext\_handler.py", line 141, in handle_update
    return await self.callback(update, context)
  File "c:\Users\jdbol\OneDrive\Desktop\testbots\echobot.py", line 80, in voice_to_text
    audio = AudioSegment.from_file(input_stream, format='ogg')
  File "C:\ProgramData\Anaconda3\envs\chatbot\lib\site-packages\pydub\audio_segment.py", line 773, in from_file     
    raise CouldntDecodeError(
pydub.exceptions.CouldntDecodeError: Decoding failed. ffmpeg returned error code: 1

Output from ffmpeg/avlib:

ffmpeg version 6.0-essentials_build-www.gyan.dev Copyright (c) 2000-2023 the FFmpeg developers
  built with gcc 12.2.0 (Rev10, Built by MSYS2 project)
  configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-lzma --enable-zlib --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-sdl2 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libaom --enable-libopenjpeg --enable-libvpx --enable-libass --enable-libfreetype --enable-libfribidi --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-d3d11va --enable-dxva2 --enable-libmfx --enable-libgme --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libtheora --enable-libvo-amrwbenc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-librubberband
  libavutil      58.  2.100 / 58.  2.100
  libavcodec     60.  3.100 / 60.  3.100
  libavformat    60.  3.100 / 60.  3.100
  libavdevice    60.  1.100 / 60.  1.100
  libavfilter     9.  3.100 /  9.  3.100
  libswscale      7.  1.100 /  7.  1.100
  libswresample   4. 10.100 /  4. 10.100
  libpostproc    57.  1.100 / 57.  1.100
fd:: End of file


  


  I ran the command in a terminal and the file converted without an issue :

  


  ffmpeg -i .\file_12.oga output.mp3 


  


  

  1. I'm not sure if the .exe file must be included into the path. When I don't do it, What I get is a permissions error.

  


  2. What other codecs can be used here ?

  


  3. Is it possible to use oga files ? I tried to declare this but I got an 'Unknown input format : 'oga' message (audio = AudioSegment.from_file(input_stream, format='oga'))

  


  


  Thanks !

  


  UPDATE : I created a more simple version that is not using a binary stream and worked like a charm, so we know for sure that something is happening with the BytesIO object

  


  async def voice_to_text(update: Update, context: ContextTypes.DEFAULT_TYPE) -> None:
    # Get the absolute path of the script
    filename = 'file_9.oga'
    script_dir = os.path.dirname(os.path.abspath(__file__))

    # Construct the file paths for input and output files
    input_file_path = os.path.join(script_dir, filename)
    output_file_path = os.path.join(script_dir, os.path.splitext(filename)[0] + ".mp3")

    # Load the OGA audio file
    audio = AudioSegment.from_file(input_file_path, format='ogg')

    # Export the audio to MP3 format
    audio.export(output_file_path, format='mp3')

    print("Conversion complete. MP3 file saved as:", output_file_path)


  


  UPDATE 2 : It seems like await new_file.download_to_memory(input_stream) is the problematic line. I tried to save the file and its corrupt. Not sure how to use this method then.

  


  https://docs.python-telegram-bot.org/en/stable/telegram.file.html#telegram.File.download_to_memory

  


• Discord music bot doesn't play songs

  9 octobre 2023, par Gam3rsCZ

  I have made myself a discord bot that also plays music(it's only for my server so strings with messages are in Czech, but code is in English).
Bot worked a while ago but now it stopped, and I don't know where the problem is

  


  I'm getting these errors : HTTP error 403 Forbidden Server returned 403 Forbidden (access denied) and
C :\Users\Me\AppData\Local\Programs\Python\Python311\Lib\site-packages\discord\player.py:711 : RuntimeWarning : coroutine 'music_cog.play_next' was never awaited
self.after(error)
RuntimeWarning : Enable tracemalloc to get the object allocation traceback
[2023-10-09 16:23:47] [INFO ] discord.player : ffmpeg process 17496 successfully terminated with return code of 1.
INFO : ffmpeg process 17496 successfully terminated with return code of 1.

  


  My code is :

  


  import discord
from discord.ext import commands
from yt_dlp import YoutubeDL

class music_cog(commands.Cog):
    def __init__(self, bot):
        self.bot = bot

        self.is_playing = False
        self.is_paused = False
        self.current = ""

        self.music_queue = []
        self.YDL_OPTIONS = {"format": "m4a/bestaudio/best", "noplaylist": "True"}
        self.FFMPEG_OPTIONS = {"before_options": "-reconnect 1 -reconnect_streamed 1 -reconnect_delay_max 5", "options": "-vn"}

        self.vc = None

    def search_yt(self, item):
        with YoutubeDL(self.YDL_OPTIONS) as ydl:
            try:
                info = ydl.extract_info("ytsearch:%s" % item, download=False)["entries"][0]
            except Exception:
                return False
        info = ydl.sanitize_info(info)
        url = info['url']
        title = info['title']
        return {'title': title, 'source': url}

    async def play_next(self):
        if len(self.music_queue) > 0:
            self.is_playing = True
            self.current = self.music_queue[0][0]["title"]
            m_url = self.music_queue[0][0]["source"]

            self.music_queue.pop(0)

            await self.vc.play(discord.FFmpegPCMAudio(m_url, **self.FFMPEG_OPTIONS), after=lambda e:  self.play_next())
        else:
            self.is_playing = False

    async def play_music(self, ctx):
        try:
            if len(self.music_queue) > 0:
                self.is_playing = True
                m_url = self.music_queue[0][0]["source"]

                if self.vc == None or not self.vc.is_connected():
                    self.vc =  await self.music_queue[0][1].connect()

                    if self.vc == None:
                        await ctx.send("Nepodařilo se připojit do hlasového kanálu.")
                        return
                else:
                    await self.vc.move_to(self.music_queue[0][1])

                self.current = self.music_queue[0][0]["title"]
                self.music_queue.pop(0)

                self.vc.play(discord.FFmpegPCMAudio(m_url, **self.FFMPEG_OPTIONS), after=lambda e: self.play_next())
            else:
                self.is_playing = False

        except:
            print("Something went wrong")
            await ctx.send(content="Něco se pokazilo")

    @commands.command(name="play", help="Plays selected song from YouTube")
    async def play(self, ctx, *args):
        query = " ".join(args)

        voice_channel = ctx.author.voice.channel
        if voice_channel is None:
            await ctx.send("Připojte se do hlasového kanálu!")
        elif self.is_paused:
            self.vc.resume()
        else:
            song = self.search_yt(query)
            if type(song) == type(True):
                await ctx.send("Písničku se nepodařilo stáhnout. Špatný formát, možná jste se pokusili zadat playlist nebo livestream.")
            else:
                await ctx.send("Písnička přidána do řady.")
                self.music_queue.append([song, voice_channel])

                if self.is_playing == False:
                    await self.play_music(ctx)
                    self.is_playing = True

    @commands.command(name="pause", aliases=["p"], help="Pauses the BOT")
    async def pause(self, ctx, *args):
        if self.is_playing:
            self.is_playing = False
            self.is_paused = True
            self.vc.pause()
            await ctx.send(content="Písnička byla pozastavena.")
            
        elif self.is_paused:
            self.is_playing = True
            self.is_paused = False
            self.vc.resume()
            await ctx.send(content="Písnička byla obnovena.")

    @commands.command(name="resume", aliases=["r"], help="Resumes playing")
    async def resume(self, ctx, *args):
        if self.is_paused:
            self.is_paused = False
            self.is_playing = True
            self.vc.resume()
            await ctx.send(content="Písnička byla obnovena.")

    @commands.command(name="skip", aliases=["s"], help="Skips current song")
    async def skip(self, ctx, *args):
        if self.vc != None and self.vc:
            self.vc.stop()
        await self.play_next()
        await ctx.send(content="Písnička byla přeskočena.")

    @commands.command(name="queue", aliases=["q"], help="Displays song queue")
    async def queue(self, ctx, songs=5):
        retval = ""

        for i in range(0, len(self.music_queue)):
            if i > songs: break
            retval += "    " + self.music_queue[i][0]["title"] + "\n"

        if retval != "":
            retval += "```"
            await ctx.send(content=("```Aktuální fronta:\n" + retval))
        else:
            await ctx.send("Řada je prázdná.")

    @commands.command(name="clear", help="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("Řada byla vymazána.")

    @commands.command(name="leave", aliases=["dc", "disconnect"], help="Disconnects the BOT")
    async def leave(self, ctx):
        self.is_playing = False
        self.is_paused = False

        if self.vc != None:
            return await self.vc.disconnect(), await ctx.send(content="BOT byl odpojen.")

        else:
            return await ctx.send("BOT není nikde připojen.")
   
    @commands.command(name="current", help="Displays the current song")
    async def current(self, ctx):
        current = self.current
        retval = f"```Právě hraje:\n    {current}```"
        if current != "":
            await ctx.send(retval)
        else:
            await ctx.send("Aktuálně nic nehraje.")


  


  I already tried everything I can think of(which isn't a lot because I suck at programming), and also tried searching for some solution on the internet, but nothing worked.