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• FFMPEG not working for larger size file using PHP in my VPS server with CentOS

  28 juillet 2019, par MrinmoyMk

  I want to compress and convert different audio formats into mp3 file using ffmpeg in php. I have already installed ffmpeg and is working fine for files below 0.9 mb. Whenever I try to submit files larger than 0.9 mb then I get error .
  It may be there is some mistake in my VPS server configuration or mistake in my PHP codes. Could you please help me.

  I have also already tried setting the chmod or permission as 777 in my server to the needed files in my server

  This is my PHP code

  if (isset($_POST['submit'])) {
  
  
  
  $path = "song/"; //set your folder path
  
  $mp3_local=$_FILES['mp3_local']['name'];
  
  
  
  $tmp = $_FILES['mp3_local']['tmp_name'];
  
  
  
  
  
  exec("ffmpeg -i ".$tmp." -ab 96k ./out96/$mp3_local.mp3");}

  This is the error message that I receive when submitting files greater than 0.9 mb :

  Forbidden

  You don’t have permission to access /convert.php on this server.

  Additionally, a 403 Forbidden error was encountered while trying to use an ErrorDocument to handle the request.

  But now after disabling ModSecurity in my server configuration the above 403 error is gone but still the FFMPEG is not being able to handle larger size files

  How do I solve this ?

• Seeking with ffmpeg options fails or causes delayed playback in Discord bot

  29 août 2022, par J Petersen

  My Discord bot allows users to play a song starting from a timestamp.

  


  The problem is that playback is delayed and audio plays faster and is jumbled if start times >= 30s are set.

  


  Results from testing different start times. Same URL, 30 second duration :

  


  





  


  


  


  


  


  



  


  


  


  


  


  


  


  


  


  


  


  


  


  


  


  


  


  


  


  


  


  


  


  


  


  Entered Start Time (s)	Playback Delay (s)	Song Playback Time (s)
  0	3	30
  30	10	22
  60	17	17
  120	31	2
  150	120	<1

  


  


  I am setting the start time using ffmpeg_options as suggested in this question.

  


  Does anyone understand why the audio playback is being delayed/jumbled ? How can I improve playback delay and allow users to start in the middle of a multi-chapter YouTube video ?

  


  Code :

  


  import discord
import youtube_dl
import asyncio


# Suppress noise about console usage from errors
youtube_dl.utils.bug_reports_message = lambda: ""


ytdl_format_options = {
    "format": "bestaudio/best",
    "outtmpl": "%(extractor)s-%(id)s-%(title)s.%(ext)s",
    "restrictfilenames": True,
    "noplaylist": False,
    "yesplaylist": True,
    "nocheckcertificate": True,
    "ignoreerrors": False,
    "logtostderr": False,
    "quiet": True,
    "no_warnings": True,
    "default_search": "auto",
    "source_address": "0.0.0.0",  # Bind to ipv4 since ipv6 addresses cause issues at certain times
}

ytdl = youtube_dl.YoutubeDL(ytdl_format_options)


class YTDLSource(discord.PCMVolumeTransformer):
    def __init__(self, source: discord.AudioSource, *, data: dict, volume: float = 0.5):
        super().__init__(source, volume)

        self.data = data

        self.title = data.get("title")
        self.url = data.get("url")

    @classmethod
    async def from_url(cls, url, *, loop=None, stream=False, timestamp = 0):
        ffmpeg_options = {
            "options": f"-vn -ss {timestamp}"}

        loop = loop or asyncio.get_event_loop()

        data = await loop.run_in_executor(None, lambda: ytdl.extract_info(url, download=not stream))
        if "entries" in data:
            # Takes the first item from a playlist
            data = data["entries"][0]

        filename = data["url"] if stream else ytdl.prepare_filename(data)
        return cls(discord.FFmpegPCMAudio(filename, **ffmpeg_options), data=data)


intents = discord.Intents.default()

bot = discord.Bot(intents=intents)

@bot.slash_command()
async def play(ctx, audio: discord.Option(), seconds: discord.Option(), timestamp: discord.Option()):
    channel = ctx.author.voice.channel
    voice = await channel.connect()
    player = await YTDLSource.from_url(audio, loop=bot.loop, stream=True, timestamp=int(timestamp))
    voice.play(player)
    await asyncio.sleep(int(seconds))
    await voice.disconnect()

token = token value
bot.run(token)


  


• FFMPEG show audio frequency waves with border

  13 juillet 2020, par Nikhil Solanki

  I am trying to generate sine waves or audio frequency like using this command :

  


  ffmpeg -i combine2.mp4 -i image1.png -i song.mp3 -t 20 -filter_complex "[0]split=2[color][alpha]; [color]crop=iw/2:ih:0:0[color]; [alpha]crop=iw/2:ih:iw/2:ih[alpha]; [color][alpha]alphamerge[v1];
[1]scale=540:960, setsar=1[v2];
[2]showfreqs=s=540x100:mode=line:ascale=sqrt:colors=white|red[v3];
[v2][v3] overlay=main_w-overlay_w:main_h-overlay_h-10[v4];
[v4][v1] overlay=1" output_video2.mp4 -y


  


  This command shows frequency of audio with white colour only and also its not smooth as above image. So, how can I generate waves like above image smooth and bordered ?

  


  Output video :