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• Using ffmpeg to record screen returns corrupted file

  8 août 2020, par odddollar

  I'm using ffmpeg and python to record my desktop screen. I've got it working so that when I input a shortcut, it starts recording. Then I use .terminate() on the subprocess to stop recording. When outputting to an mp4, this corrupts the file and makes it unreadable. I can output the file as an flv or avi and it doesn't get corrupted, but then the video doesn't contain time/duration data, something I need.

  


  Is there a way I can gracefully stop the recording when outputting an mp4 ?
Or is there a way I can include the time/duration data in the flv/avi ?

  


  import keyboard
import os
from subprocess import Popen

class Main:
    def __init__(self):
        self.on = False

    def main(self):
        if not self.on:
            if os.path.isfile("output.mp4"):
                os.remove("output.mp4")

            self.process = Popen('ffmpeg -f gdigrab -framerate 30 -video_size 1920x1080 -i desktop -b:v 5M output.mp4')
            self.on = True
        else:
            self.process.terminate()

            self.on = False

run = Main()
keyboard.add_hotkey("ctrl+shift+g", lambda:run.main())

keyboard.wait()


  


• FFMpeg returns error : Unrecognized option 'master_pl_name'

  14 février 2021, par jonatasos

  I used this command (described at the processing message bellow) on my application several times before and always worked well. Now returns that error.

  


  '/usr/bin/ffmpeg' '-y' '-threads' '12' '-i' 
'/home/vagrant/code/myapp/storage/videos/videos_disk/a3.mp4' '-map' '0' '-vcodec' 'libx264' 
'-b:v' '500k' '-g' '48' '-hls_playlist_type' 'vod' '-hls_time' '10' '-hls_segment_filename' 
'/home/vagrant/code/myapp/storage/app/public/test_0_500_%05d.ts' '-master_pl_name' 
'master_playlist_guide_0.m3u8' '-acodec' 'aac' '-b:a' '128k' 
'/home/vagrant/code/myapp/storage/app/public/test_0_500.m3u8' '-map' '0' '-vcodec' 
'libx264' '-b:v' '1500k' '-g' '48' '-hls_playlist_type' 'vod' '-hls_time' '10' '-hls_segment_filename' 
'/home/vagrant/code/myapp/storage/app/public/test_1_1500_%05d.ts' '-master_pl_name' 
'master_playlist_guide_1.m3u8' '-acodec' 'aac' '-b:a' '128k' 
'/home/vagrant/code/myapp/storage/app/public/test_1_1500.m3u8' '-map' '0' '-vcodec' 
'libx264' '-b:v' '3000k' '-g' '48' '-hls_playlist_type' 'vod' '-hls_time' '10' '-hls_segment_filename' 
'/home/vagrant/code/myapp/storage/app/public/test_2_3000_%05d.ts' '-master_pl_name' 
'master_playlist_guide_2.m3u8' '-acodec' 'aac' '-b:a' '128k' 
'/home/vagrant/code/myapp/storage/app/public/test_2_3000.m3u8'


  


  (single line:) '/usr/bin/ffmpeg' '-y' '-threads' '12' '-i' '/home/vagrant/code/myapp/storage/videos/videos_disk/a3.mp4' '-map' '0' '-vcodec' 'libx264' '-b:v' '500k' '-g' '48' '-hls_playlist_type' 'vod' '-hls_time' '10' '-hls_segment_filename' '/home/vagrant/code/myapp/storage/app/public/test_0_500_%05d.ts' '-master_pl_name' 'master_playlist_guide_0.m3u8' '-acodec' 'aac' '-b:a' '128k' '/home/vagrant/code/myapp/storage/app/public/test_0_500.m3u8' '-map' '0' '-vcodec' 'libx264' '-b:v' '1500k' '-g' '48' '-hls_playlist_type' 'vod' '-hls_time' '10' '-hls_segment_filename' '/home/vagrant/code/myapp/storage/app/public/test_1_1500_%05d.ts' '-master_pl_name' 'master_playlist_guide_1.m3u8' '-acodec' 'aac' '-b:a' '128k' '/home/vagrant/code/myapp/storage/app/public/test_1_1500.m3u8' '-map' '0' '-vcodec' 'libx264' '-b:v' '3000k' '-g' '48' '-hls_playlist_type' 'vod' '-hls_time' '10' '-hls_segment_filename' '/home/vagrant/code/myapp/storage/app/public/test_2_3000_%05d.ts' '-master_pl_name' 'master_playlist_guide_2.m3u8' '-acodec' 'aac' '-b:a' '128k' '/home/vagrant/code/myapp/storage/app/public/test_2_3000.m3u8':



  


  This is the error returned :

  


   ffmpeg version 3.4.8-0ubuntu0.2 Copyright (c) 2000-2020 the FFmpeg developers
  built with gcc 7 (Ubuntu 7.5.0-3ubuntu1~18.04)
  configuration: --prefix=/usr --extra-version=0ubuntu0.2 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-librsvg --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
  libavutil      55. 78.100 / 55. 78.100
  libavcodec     57.107.100 / 57.107.100
  libavformat    57. 83.100 / 57. 83.100
  libavdevice    57. 10.100 / 57. 10.100
  libavfilter     6.107.100 /  6.107.100
  libavresample   3.  7.  0 /  3.  7.  0
  libswscale      4.  8.100 /  4.  8.100
  libswresample   2.  9.100 /  2.  9.100
  libpostproc    54.  7.100 / 54.  7.100
Unrecognized option 'master_pl_name'.
Error splitting the argument list: Option not found


  


  I`ve reinstalled the ffmpeg, also tested in a virtual machine and the same error happens.

  


  Live server : CentOS 7 / Apache2 / PHP-fpm 7.3 ;
Virtual machine : Ubuntu 20.04 / nginx / PHP-fpm 7.4.5

  


  I really have no clue about what to do about it now.

  


• Discord bot returns ffmpeg error despite being added to PATH

  22 février 2024, par Sam

  I am creating a Discord bot to play music via Youtube as practice with APIs. Every time I run the command to play a Youtube video I am met with "ffmpeg was not found". I have downloaded ffmpeg (as I'm on Windows) and moved the folder to my C : drive. Once done, I've added it to the path within environment variables. The error persists.

  


  

  • I've added ffmpeg to my PATH as described in this video.

  


  • Additionally, I've found forums where the suggested answer is to add ffmpeg to your PATH.

  


  


  In command prompt, if I type "ffmpeg" it returns "'FFmpeg' is not recognized as an internal or external command, operable program or batch file."

  


  Here is my code :

  


  from typing import Final
import os
from dotenv import load_dotenv
from discord import Intents, Client, Message
from responses import get_response
import asyncio
import yt_dlp
import discord

#Step 0: Load our token from somewhere safe
load_dotenv()
#Final decorator makes it so that this cannot be overwritten or have subclasses
TOKEN: Final[str] = os.getenv('DISCORD_TOKEN')


voice_clients = {}
#Settings for the video download.
yt_dl_opts = {'format': 'bestaudio/best'}
ytdl = yt_dlp.YoutubeDL(yt_dl_opts)

#Settings for ffmpeg. 
ffmpeg_options = {'options': '-vn'}

# Step 1: Bot Setup - activate intents
intents: Intents = Intents.default()
intents.message_content = True #NOQA
client: Client = Client(intents=intents)

#Step 2: Message Functionality
async def send_message(message: Message, user_message: str):
    if not user_message:
        print('Message was empty because intents were not enabled... probably')
        return
    
    # The := "Walrus Operator" is used to prompt for input.
    if is_private := user_message[0] == '?':
        user_message = user_message[1:]
    
    try:
        response: str = get_response(user_message)
        await message.author.send(response) if is_private else await message.channel.send(response)
    except Exception as e:
        print(e)

#Step 3: Handling the startup for our bot.
        
@client.event
async def on_ready() -> None:
    print(f"{client.user} is now running")

#Step 4: Handle incoming messages
@client.event
async def on_message(message: Message) -> None:
    if message.author == client.user:
        return
    
    username: str = str(message.author)
    user_message: str = message.content
    channel: str = str(message.channel)

    print(f"[{channel}] {username}: '{user_message}")
    await send_message(message, user_message)

    if message.content.startswith("!play"):
        try:
            url = message.content.split()[1]
            
            #Handles the voice connection that a bot has to a certain channel
            voice_client = await message.author.voice.channel.connect()
            voice_clients[voice_client.guild.id] = voice_client

            loop = asyncio.get_event_loop()
            data = await loop.run_in_executor(None, lambda: ytdl.extract_info(url, download=False))

            song = data['url']
            player = discord.FFmpegPCMAudio(song, **ffmpeg_options)

            voice_client.play(player)



        except Exception as err:
            print(err)

# Step 5: Main entry point
def main() -> None:
    client.run(token=TOKEN)

if __name__ == '__main__':
    main()```