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• avcodec/ttmlenc : Deduplicate ttml_default_namespacing string

  29 juillet 2022, par Andreas Rheinhardt

  avcodec/ttmlenc : Deduplicate ttml_default_namespacing string
  String literals are allowed to be deduplicated (and toolchains
  
  are already capable of doing so), yet the same is not allowed
  
  for named arrays (even when they contain strings). Therefore
  
  use a const char *const pointing to an unnamed string literal
  
  for ttml_default_namespacing.
  Reviewed-by : Jan Ekström <jeebjp@gmail.com>
  
  Signed-off-by : Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
  

  • [DH] libavcodec/ttmlenc.h

• How to use custom function to calculate 'x' in ffmpeg crop

  17 septembre 2016, par Sasha Kastsiushkin

  ffmpeg docs have this example :

  crop=in_w/2:in_h/2:(in_w-out_w)/2+((in_w-out_w)/2)*sin(n/10):(in_h-out_h)/2 +((in_h-out_h)/2)*sin(n/7)

  To make it simpler, I will use named params and only affect output width and position x
crop=w=in_w/3:x=(in_w-out_w)/2+((in_w-out_w)/2)*sin(n/10)

  The result will be the video that is 3 times shorter than original and it will ’float’ along the x axis thanks to that sin(n/10) function. x is evaluated for each frame and n(number of the input frame) will increase and change the x position dynamically.

  I’m trying to create a custom function, which will take n or t and based on it return some value of x.

  Please help me or perhaps this is not possible. I was trying to create a small bash script, which will do so unsuccessfully.

  Thank you

• Discord.py error ; ffmpeg not found even after installing and configuring it in Environment Variables

  11 septembre 2020, par Trayambak

  So I'm trying to integrate the music bot feature in my Discord bot, I'll just link the code I suspect something's wrong with.

  


  import discord
from discord.ext import commands
import praw
import random
import os
import json
import ffmpeg
import youtube_dl

# music command
@client.command(pass_context=true)
async def play(ctx, url):
    server = ctx.message.server
    voice_client = client.voice_client_in(server)
    player = await voice.client.create_ytdl_player(url)
    players[server.id] = player
    player.start()


  


  and here is the error.

  


  Traceback (most recent call last):&#xA;  File "C:\Users\Trayambak\Desktop\Akihiko\bot.py", line 8, in <module>&#xA;    import ffmpeg&#xA;ModuleNotFoundError: No module named &#x27;ffmpeg&#x27;&#xA;[Finished in 52.353s]&#xA;</module>