Sur d’autres sites (9298)

• Is there a way to get FFprobe to return codec_name from firs first video, audio, and subtitle stream in a video in a single call to FFprobe ?

  26 août 2023, par Chase Westlye

  ffprobe -v error -select_streams v:0 -show_entries stream=codec_name -of default=noprint_wrappers=1:nokey=1 (filename) 


  


  is how to retrieve the codec_name of the first video stream in a file via FFprobe.

  


  Replace v:0 with a:0 to get the first audio stream, and it returns the codec_name of the first audio stream in the file.

  


  And replace v:0 with s:0 to get the codec_name of the first subtitle stream in the file.

  


  Awesome.

  


  What isn't awesome, is having to call FFprobe three times for these operations and having to hit the file three times.

  


  Is there a way to call FFProbe once, and have FFProbe return the codec_name of the first video, audio, and subtitle stream (instead of separate calls) ?

  


• Subprocess doesn't return expected result

  8 avril 2023, par Gren Man

  Subprocess doesn't return expected result

  


  I have been trying getting info from video files using ffprobe

  


  But I stumbled upon unexpected results, here are some test I've done

  


  First test

  


  # ffprobe -v error -select_streams v:0 -show_entries stream=height,width -of csv=s=x:p=0 
proc = subprocess.Popen(['ffprobe', '-v', 'error', '-select_streams', 'v:0', '-show_entries', 
       'stream=height,width', '-of', 'csv=s=x:p=0 ', video_path],
       stdout=subprocess.PIPE, stdin=subprocess.PIPE)

# proc.stdout.read() Returns  b'widthXheightt\r\n'
v_resolution = proc.stdout.read().decode('utf-8').replace('\r', '').replace('\n', '')
# Result 'widthXheight'


  


  First test was successful.

  


  Second test

  


  # ffprobe -v error -select_streams v:0 -show_entries stream=display_aspect_ratio -of default=noprint_wrappers=1:nokey=1
proc = subprocess.Popen(['ffprobe', '-v', 'error', '-select_streams', 'v:0', '-show_entries',
       'stream=display_aspect_ratio','-of default=noprint_wrappers=1:nokey=1', video_path],
       stdout=subprocess.PIPE, stdin=subprocess.PIPE)

# proc.stdout.read() Returns b''
a_r = proc.stdout.read().decode('utf-8').replace('\r', '').replace('\n', '')
# Result ''


  


  Hmm, this doesn't sounds right I thought result should be e.g. 16:9

  


  I tried putting code to CMD which returned aforementioned result

  


  Third test

  


  # ffprobe -v error -select_streams v -of default=noprint_wrappers=1:nokey=1 -show_entries stream=r_frame_rate
proc = subprocess.Popen(['ffprobe', '-v', 'error', '-select_streams', 'v', '-of',
       'default=noprint_wrappers=1:nokey=1','-show_entries', 'stream=r_frame_rate',
       video_path], stdout=subprocess.PIPE, stdin=subprocess.PIPE)

# proc.stdout.read() Returns b'30/1'
fps = proc.stdout.read().decode('utf-8').replace('\r', '').replace('\n', '') + ' fps'
# Result 30/1 fps


  


  Just as expected this returned subarashi result

  


  But what happened in a second test ? Can somebody explain it to me ? I used stderr which returned :

  


  Failed to set value 'foo.mp4' for option 'of default=noprint_wrappers=1:nokey=1': Option not found


  


  Result of python code

  


  

  


• Python Discord music bot stops playing a couple of minutes into any song

  9 mars 2023, par knewby

  I am trying to put together a Python Discord music bot as a fun little project. Outside of the required discord library I'm currently using the YouTube API to search for videos and parse the URL (not shown in code), yt-dlp which is a fork of yt_download that is still maintained to get the info from the YT URL, and FFMPEG to play the song obtained from yt-dlp through the bot. My play command seems to work as the 1st YT video result will start to play, but roughly 30-90 seconds into the audio, it stops playing. I get this message in the console :

  


  2023-02-23 14:54:44 IN discord.player ffmpeg process 4848 successfully terminated with return code of 0.

  


  So there is no error for me to go off of. I've included the full output from the console below...

  


  -----------------------------------
groovy-jr#6741 is up and running
-----------------------------------
2023-02-23 14:53:23 INFO     discord.voice_client Connecting to voice...
2023-02-23 14:53:23 INFO     discord.voice_client Starting voice handshake... (connection attempt 1)
2023-02-23 14:53:24 INFO     discord.voice_client Voice handshake complete. Endpoint found us-south1655.discord.media
2023-02-23 14:54:44 INFO     discord.player ffmpeg process 4848 successfully terminated with return code of 0.  <= AUDIO STOPS


  


  I'm currently developing this project on a Windows 11 machine, but I've had the issue running it on my Ubuntu machine as well. I am just hosting the bot directly from the VSCode terminal for development.

  


  I've been trying to do research on this problem, the problem is I can't find many recent information for the issue. There was another post that talked about a similar problem and had an answer suggesting the following FFMPEG options be used which I tried to no avail.

  


  FFMPEG_OPTIONS = {
                    'before_options': '-reconnect 1 -reconnect_streamed 1 -reconnect_delay_max 5',
                    'options': '-vn',
                 }


  


  I'll include the problem file below :

  


  import discord
from discord.ext import commands
from discord import FFmpegPCMAudio
import responses
import youtubeSearch as YT
import yt_dlp

async def send_message(message, user_message, is_private = False):
    try:
        response = responses.handle_response(user_message)
        await message.author.send(response) if is_private else await message.channel.send(response)
    except Exception as e:
        print(e)

def run_discord_bot():
    intents = discord.Intents.default()
    intents.message_content = True

    TOKEN = 'xxxxxx'
    client = commands.Bot(command_prefix = '-', intents=intents)

    @client.event
    async def on_ready():
        print('-----------------------------------')
        print(f'{client.user} is up and running')
        print('-----------------------------------')

    @client.command(name='play', aliases=['p'], pass_context = True)
    async def play(ctx, *, search_term:str = None):
        if ctx.author.voice:
            voice = None
            if search_term == None:
                await ctx.send('No song specified.')
                return
            if not ctx.voice_client:
                channel = ctx.message.author.voice.channel
                voice = await channel.connect()
            else:
                voice = ctx.guild.voice_client
            
            url = YT.singleSearch(search_term)
            
            YTDLP_OPTIONS = {
                'format': 'bestaudio/best',
                'extractaudio': True,
                'audioformat': 'mp3',
                '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': 'ytsearch',
                'source_address': '0.0.0.0',
            }

 =====>     FFMPEG_OPTIONS = {
                'before_options': '-reconnect 1 -reconnect_streamed 1 -reconnect_delay_max 5',
                'options': '-vn',
            }

            with yt_dlp.YoutubeDL(YTDLP_OPTIONS) as ydl:
                info = ydl.extract_info(url, download=False)
                playUrl = info['url']

            source = FFmpegPCMAudio(playUrl, options=FFMPEG_OPTIONS)
            voice.play(source)
        else:
            await ctx.send('You must be in a voice channel to play a song!')
            return

    @client.command(pass_context = True)
    async def leave(ctx):
        if ctx.voice_client:
            await ctx.guild.voice_client.disconnect()
        else:
            await ctx.send("I'm not in a voice channel!")

    @client.command(pass_context = True)
    async def pause(ctx):
        voice = discord.utils.get(client.voice_clients, guild = ctx.guild)
        if voice.is_playing():
            voice.pause()
        else:
            await ctx.send('No audio playing...')

    @client.command(pass_context = True)
    async def resume(ctx):
        voice = discord.utils.get(client.voice_clients, guild = ctx.guild)
        if voice.is_paused():
            voice.resume()
        else:
            await ctx.send('No audio paused...')

    @client.command(pass_context = True)
    async def stop(ctx):
        voice = discord.utils.get(client.voice_clients, guild = ctx.guild)
        voice.stop()

    client.run(TOKEN)


  


  I appreciate any guidance I can get !