Re: [FFmpeg-user] Converting text to video for dictation

[John B Morris]

>
> So just to be clear, you’re referring to kinetic typography, right?
> For example stuff like Pulp Fiction: Intonation <
> https://youtu.be/h2m_Z8CWdXI>, derivative graphics work by Jarett Moody
> (slightly NSFW, language)
> Apple has also been playing around with the style since 2016, mostly in
> promo campaigns for non-traditional channels. Don’t Blink <
> https://twitter.com/Apple/status/773604633008680964>
>
(and...)

> This kinda sounds like something you'd with Adobe After Effects.
>
Oh wow. Well, not that advanced
... and I use Shotcut . Might already be able to do
that kind of typography with it somewhat.

I don't yet understand why you want to create a video with transparent
> background.
>
Well, my video editor has an option of creating a transparent-colored
element where you put a bunch of visual filters, one of those being text,
and being able to place that text anywhere. For each block of text at a
different time, I'd have to kind of repeat the process which can get pretty
complex for longer videos, and I can't keyframe text content in it. I'm
looking to simplify that with ffmpeg if possible (and not have to
chroma-key the black background if there is one).

I think you want subtitles with heavy custom styling, maybe as opposed to
> captions like you would do in scenarist, try Aegisub <
> http://www.aegisub.org/> with newer ASS versions.
>
This looks promising actually. Might actually help with most if not
everything I'm looking to do.

Well I actually managed to find a great example... probably should've
provided this initially: https://youtu.be/i3Bno_39qh0
-
Thank you,

John B (JB).


On Tue, Oct 20, 2020 at 12:41 PM Carl Zwanzig  wrote:

>
> On 10/20/2020 6:52 AM, Edward Park wrote:
> > You say it’s not very efficient using your video editor (I assume
> > something along the lines of Avid, PPro, FCPX/Motion), but I don’t think
> > FFmpeg is the right tool for the job, unless you had some really complex
> > ass subtitles already, using a bunch of v4+ features of the script and
> > you just need to burn it into the video.
>
> This kinda sounds like something you'd with Adobe After Effects.
>
> z!
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Re: [FFmpeg-user] Converting text to video for dictation

[Carl Zwanzig]

On 10/20/2020 6:52 AM, Edward Park wrote:

You say it’s not very efficient using your video editor (I assume
something along the lines of Avid, PPro, FCPX/Motion), but I don’t think
FFmpeg is the right tool for the job, unless you had some really complex
ass subtitles already, using a bunch of v4+ features of the script and
you just need to burn it into the video.


This kinda sounds like something you'd with Adobe After Effects.

z!
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Re: [FFmpeg-user] Converting text to video for dictation

[Edward Park]

Hi,

>> typography effects based video
> So that one is basically what I'm looking to do with ffmpeg - turn a
> subtitle file (of any type) into a transparent backgrounded (?) video for
> use in my video editor to combine the necessary contents together - or some
> other file/method that has/involves time stamps/tags or "keyframes".

Well I’ll be honest I thought that was pretty unlikely when I threw that in the 
mix. 

> Since I don't intend to use my voice in my videos, I "voice" them via text
> elements either in the center of the screen or some other places where it
> makes sense to do so. (I do this with my current video editor already, but
> it isn't very efficient, time and complexity wise, especially for videos
> that heavily rely on this... so hopefully ffmpeg can help with that?) Also
> if possible (not needed), font and color changing, and maybe some movement.

So just to be clear, you’re referring to kinetic typography, right?
For example stuff like Pulp Fiction: Intonation , 
derivative graphics work by Jarett Moody (slightly NSFW, language)
Apple has also been playing around with the style since 2016, mostly in promo 
campaigns for non-traditional channels. Don’t Blink 


You say it’s not very efficient using your video editor (I assume something 
along the lines of Avid, PPro, FCPX/Motion), but I don’t think FFmpeg is the 
right tool for the job, unless you had some really complex ass subtitles 
already, using a bunch of v4+ features of the script and you just need to burn 
it into the video.

> Maybe subtitles in the future, but I sort of already know how to do those,
> however the first point would be good to know.

I think you want subtitles with heavy custom styling, maybe as opposed to 
captions like you would do in scenarist, try Aegisub  
with newer ASS versions.

Regards,
Ted Park

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Re: [FFmpeg-user] Converting text to video for dictation

[andrei ka]

guess you should first check a bunch of subtitling programs. from you
description, you're simply doing subtiting of your vids. text placement is
easier done by specialised subtitlers,
and once you're done, you can burn 'em with ffmpeg (the only reasonable
usage of ffmpeg i can image for what you're doing, the rest of it is not
really ffmpeg's specialisation)..
if you're new to free subtitlers google aegisub & likes
&rei
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Re: [FFmpeg-user] Converting text to video for dictation

[Michael Koch]

Am 20.10.2020 um 06:46 schrieb John B Morris:

Hello all,

typography effects based video
So that one is basically what I'm looking to do with ffmpeg - turn a
subtitle file (of any type) into a transparent backgrounded (?) video for
use in my video editor to combine the necessary contents together - or some
other file/method that has/involves time stamps/tags or "keyframes". Since
I don't intend to use my voice in my videos, I "voice" them via text
elements either in the center of the screen or some other places where it
makes sense to do so. (I do this with my current video editor already, but
it isn't very efficient, time and complexity wise, especially for videos
that heavily rely on this... so hopefully ffmpeg can help with that?) Also
if possible (not needed), font and color changing, and maybe some movement.

Maybe subtitles in the future, but I sort of already know how to do those,
however the first point would be good to know.


I don't yet understand why you want to create a video with transparent 
background. I think that can be done, but I don't have an example ready.
It seems easier to write the texts/subtitles directly into the final 
video. You find a few examples in chapters 2.118 and 2.119 of my book:  
http://www.astro-electronic.de/FFmpeg_Book.pdf


Michael

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Re: [FFmpeg-user] Converting text to video for dictation

[John B Morris]

Hello all,

typography effects based video
>
So that one is basically what I'm looking to do with ffmpeg - turn a
subtitle file (of any type) into a transparent backgrounded (?) video for
use in my video editor to combine the necessary contents together - or some
other file/method that has/involves time stamps/tags or "keyframes". Since
I don't intend to use my voice in my videos, I "voice" them via text
elements either in the center of the screen or some other places where it
makes sense to do so. (I do this with my current video editor already, but
it isn't very efficient, time and complexity wise, especially for videos
that heavily rely on this... so hopefully ffmpeg can help with that?) Also
if possible (not needed), font and color changing, and maybe some movement.

Maybe subtitles in the future, but I sort of already know how to do those,
however the first point would be good to know.
-
Thank you,

John B (JB).


On Mon, Oct 19, 2020 at 9:25 PM Edward Park  wrote:

> Hi,
>
> > So, I'm a person that makes videos and dictates them via text elements.
> My
> > video editor makes this tedious. Is there a way to make this process
> faster
> > with ffmpeg (probably like a subtitle file into a video with text in the
> > middle?)
>
> I’m confused as to what you mean, are you asking how to author subtitle
> files from a transcript from the video, burn subtitles into video, or
> typography effects based video?
>
> Regards,
> Ted Park
>
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Re: [FFmpeg-user] Converting text to video for dictation

[Chris Miceli]

Hi!

I'm not sure if I am answering the question you are exactly posting but
what I think you are looking for is some file format which will help
subtitle your video, allowing people to enable them as they wish. Whilst I
don't know your exact delivery of these videos your choices roughly are:

1. CEA608 which are then put into the mp4 container as SEI messages. If you
want to deliver one video file, this is your best bet. Cea608 is good for
English and Latin with cea708 supporting a larger character set.
2. An srt/webvtt files which is served through a manifest to the client who
can fetch and display them as they wish. This is the way I have the most
experience with and is simplest if your content is on demand (not live,
that is). I usually see this with DASH but other tech could also use it. It
produces a second file though, but if you are running a website for this
it's no big deal.

As far as authoring them, I'm not too sure which software you want to use.
But once you have both files (video and subtitle) you should be able to do
either 1 or 2 fairly easily. I would recommend having them as webvtt and if
you then want it in the mp4 file as cea, there should be a way to do it
with libcaption.

I hope this helps at least a little bit. I can try help some more with more
details.

On Tue, Oct 20, 2020, 1:25 PM Edward Park  wrote:

> Hi,
>
> > So, I'm a person that makes videos and dictates them via text elements.
> My
> > video editor makes this tedious. Is there a way to make this process
> faster
> > with ffmpeg (probably like a subtitle file into a video with text in the
> > middle?)
>
> I’m confused as to what you mean, are you asking how to author subtitle
> files from a transcript from the video, burn subtitles into video, or
> typography effects based video?
>
> Regards,
> Ted Park
>
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Re: [FFmpeg-user] Converting text to video for dictation

[Edward Park]

Hi,

> So, I'm a person that makes videos and dictates them via text elements. My
> video editor makes this tedious. Is there a way to make this process faster
> with ffmpeg (probably like a subtitle file into a video with text in the
> middle?)

I’m confused as to what you mean, are you asking how to author subtitle files 
from a transcript from the video, burn subtitles into video, or typography 
effects based video?

Regards,
Ted Park

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[FFmpeg-user] Converting text to video for dictation

[John B Morris]

Hello!
So, I'm a person that makes videos and dictates them via text elements. My
video editor makes this tedious. Is there a way to make this process faster
with ffmpeg (probably like a subtitle file into a video with text in the
middle?)
-
Thank you,

John B (JB).
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