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Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use

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On 2025-08-21, Carlos E.R. wrote:

> On 2025-08-21 15:27, Nuno Silva wrote:
>> On 2025-08-21, Carlos E.R. wrote:
>>
>>> On 2025-08-21 12:34, The Natural Philosopher wrote:
>>>> On 21/08/2025 10:44, Carlos E.R. wrote:
>>>>> I do not want reference documentation.
>>>>>
>>>>> I primarily want documentation that allows me to start using a new
>>>>> program, fast, and to achieve my goals.
>>>>>
>>>>> Once I have that, I want the reference documentation.
>>>>
>>>> +1001
>> [...]
>>> To that I added "bird.avi" as output file, but WhatsApp rejected
>>> it. So I told ChatGpt all that. It replied giving me the missing data:
>>>
>>> ffmpeg -i IMAG0009.avi -vf "scale=640:-2" -c:v libx264 -profile:v \
>>>     baseline -level 3.0 -preset fast -c:a aac -b:a 128k \
>>>     -movflags +faststart bird_whatsapp.mp4
>>>
>>> and that worked. Having that command line, I modified it easily for
>>> more resolution (scale=1024:-2). I was already familiar with all the
>>> options, I just needed to find which would produce the wanted result,
>>> and not spend a day on it.
>>>
>>>
>>> But if I want to find in the manual what "-b" stands for, I fail. Ask
>>> chatgpt, instant reply, it is bitrate. Oh, yes, I remember now.
>>>
>>> :-)
>>>
>>>
>>> Oh, searching the man for "movflags" or "faststart" fails. So ask the
>>> AI. They are in the man page for the MP3 muxer, it says. Oh, right, I
>>> forgot that.
>>>
>>>
>>> So, even a reference manual is hard to use when you want to find a
>>> particular reference, basically using "grep".
>>
>> (ffmpeg's online manual is spread over more than one page, isn't it?)
>
> Yes.
>
> I don't know right now if there is a command that would search all
> manuals and find a word.
>
> cer@Telcontar:~> apropos movflags
> movflags: nothing appropriate.
> cer@Telcontar:~>

At least here, perhaps "man -w -K movflags". Turns up ffmpeg-all and ffmpeg-formats.

(But no, I wasn't aware of this, had to check "man man", so maybe
there's some better man flag, or separate utility that I'm not aware of
(besides plain grep on the man pages where possible, I guess).)

-- 
Nuno Silva

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Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use "Carlos E.R." <robin_listas@es.invalid> - 2025-08-19 12:35 +0200
  Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Mike Scott <usenet.16@scottsonline.org.uk.invalid> - 2025-08-19 12:18 +0100
    Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Marc Haber <mh+usenetspam1118@zugschl.us> - 2025-08-19 15:16 +0200
      Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-08-20 01:02 +0000
    Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Mike Scott <usenet.16@scottsonline.org.uk.invalid> - 2025-08-27 06:56 +0100
  Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-08-20 01:01 +0000
    Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use "Carlos E.R." <robin_listas@es.invalid> - 2025-08-20 12:52 +0200
      Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-08-20 22:36 +0000
        Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use "Carlos E.R." <robin_listas@es.invalid> - 2025-08-21 11:44 +0200
          Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use The Natural Philosopher <tnp@invalid.invalid> - 2025-08-21 11:34 +0100
            Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use "Carlos E.R." <robin_listas@es.invalid> - 2025-08-21 14:36 +0200
              Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Nuno Silva <nunojsilva@invalid.invalid> - 2025-08-21 14:27 +0100
                Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use "Carlos E.R." <robin_listas@es.invalid> - 2025-08-21 21:37 +0200
                Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Nuno Silva <nunojsilva@invalid.invalid> - 2025-08-22 10:33 +0100
                Manuals [Was: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use] "Carlos E.R." <robin_listas@es.invalid> - 2025-08-22 12:39 +0200
              Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-08-22 01:12 +0000
          Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-08-22 01:06 +0000
            Documentation [Was: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use] "Carlos E.R." <robin_listas@es.invalid> - 2025-08-22 12:26 +0200
              Re: Documentation [Was: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use] Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-08-23 23:13 +0000
    Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use John Ames <commodorejohn@gmail.com> - 2025-08-20 07:47 -0700
      Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-08-20 22:37 +0000
  Re: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use Stéphane CARPENTIER <sc@fiat-linux.fr> - 2025-08-20 19:25 +0000
    tldr [WAS: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use] "Carlos E.R." <robin_listas@es.invalid> - 2025-08-21 12:04 +0200
      Re: tldr [WAS: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use] Stéphane CARPENTIER <sc@fiat-linux.fr> - 2025-08-23 12:40 +0000
        Re: tldr [WAS: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use] "Carlos E.R." <robin_listas@es.invalid> - 2025-08-24 00:40 +0200
        Re: tldr [WAS: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use] Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-08-23 23:15 +0000
          Re: tldr [WAS: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use] Stéphane CARPENTIER <sc@fiat-linux.fr> - 2025-08-24 11:22 +0000
            Re: tldr [WAS: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use] Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-08-24 22:18 +0000

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