Re: [FFmpeg-user] How to decipher FFMEG version number?

2020-12-25 Thread Gyan Doshi



On 26-12-2020 05:12 am, Dan Bridges wrote:

I build FFMPEG under Win10 using media-autobuild_suite
(https://github.com/m-ab-s/media-autobuild_suite)

https://github.com/m-ab-s/media-autobuild_suite

Is it possible to decipher the version number:

ffmpeg version N-100471-g85bd703b3a-g5b48d2af43+1 Copyright (c)
2000-2020 the FFmpeg developers
   built with gcc 10.2.0 (Rev6, Built by MSYS2 project)



The media-autobuild_suite adds some out-of-tree patches on top of 
ffmpeg, so its version number is non-standard.


However, it can still be deciphered.

N indicates that the build is of the master branch of ffmpeg.

100471 is the commit count. See the number on the blue bar just above the file 
listing at https://github.com/FFmpeg/FFmpeg

The 2nd g-prefixed hash - g5b48d2af43 identifies the latest ffmpeg commit at 
time of building.

It can be viewed at https://github.com/FFmpeg/FFmpeg/commit/5b48d2af43

+1 represents the number of out-of-tree commits applied on top.

Regards,
Gyan

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[FFmpeg-user] How to decipher FFMEG version number?

2020-12-25 Thread Dan Bridges
I build FFMPEG under Win10 using media-autobuild_suite
(https://github.com/m-ab-s/media-autobuild_suite)

https://github.com/m-ab-s/media-autobuild_suite

Is it possible to decipher the version number:

ffmpeg version N-100471-g85bd703b3a-g5b48d2af43+1 Copyright (c)
2000-2020 the FFmpeg developers
  built with gcc 10.2.0 (Rev6, Built by MSYS2 project)

Dan.



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Re: [FFmpeg-user] ffmpeg -f gdigrab

2020-12-25 Thread Carl Zwanzig

On 12/25/2020 9:09 AM, Nasty Phoenix wrote:

I think i need to reconfigure rebuild my ffmpeg but i don't know what
are the library i have to add and enable with my ./configure command


It would be a great help to know which OS you're using and the _full_ 
command line and output (any question about ffmpeg should include that info).


z!
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Re: [FFmpeg-user] ffmpeg -f gdigrab

2020-12-25 Thread Marton Balint



On Fri, 25 Dec 2020, Nasty Phoenix wrote:


Hello

I don't understand i can use the ffmpeg -f x11grab but my ffmpeg build
don't recognize the -f gdigrab or the -i pulse option


gdigrab is a windows thing, x11grab is a linux/unix thing, if you are on 
linux you won't be able to use gdigrab. Regarding pulse, you are probably 
referring to -f pulse, not -i pulse, and your build should support it if 
you run configure with --enable-libpulse.


Regards,
Marton
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[FFmpeg-user] ffmpeg -f gdigrab

2020-12-25 Thread Nasty Phoenix
Hello

I don't understand i can use the ffmpeg -f x11grab but my ffmpeg build
don't recognize the -f gdigrab or the -i pulse option
I think i need to reconfigure rebuild my ffmpeg but i don't know what
are the library i have to add and enable with my ./configure command

sorry for my poor english i am french.

Best regards

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Re: [FFmpeg-user] https://github.com/BtbN/FFmpeg-Builds/releases guidance needed

2020-12-25 Thread Gyan Doshi



On 25-12-2020 10:05 am, Mark Filipak (ffmpeg) wrote:

Never mind. I figured it out based on the sizes of the 'exe' files.
I downloaded 'ffmpeg-N-100461-gb0a882cc93-win64-gpl-vulkan.zip'.






On 12/24/2020 06:23 AM, Gyan Doshi wrote:



On 24-12-2020 02:33 pm, Mark Filipak (ffmpeg) wrote:

Here:
https://github.com/BtbN/FFmpeg-Builds/releases
are these:
ffmpeg-N-100459-ga7f9b3b954-win64-gpl-shared-vulkan.zip
ffmpeg-N-100459-ga7f9b3b954-win64-gpl-shared.zip
ffmpeg-N-100459-ga7f9b3b954-win64-gpl-vulkan.zip
ffmpeg-N-100459-ga7f9b3b954-win64-gpl.zip
ffmpeg-N-100459-ga7f9b3b954-win64-lgpl-shared-vulkan.zip
ffmpeg-N-100459-ga7f9b3b954-win64-lgpl-shared.zip
ffmpeg-N-100459-ga7f9b3b954-win64-lgpl-vulkan.zip
ffmpeg-N-100459-ga7f9b3b954-win64-lgpl.zip
ffmpeg-n4.3.1-26-gca55240b8c-win64-gpl-4.3.zip
ffmpeg-n4.3.1-26-gca55240b8c-win64-gpl-shared-4.3.zip
ffmpeg-n4.3.1-26-gca55240b8c-win64-lgpl-4.3.zip
ffmpeg-n4.3.1-26-gca55240b8c-win64-lgpl-shared-4.3.zip

Sorry to have to ask [1], but what are they? Which one do I download 
if I have an Intel Core i7-6700HQ CPU with Intel(R) HD Graphics 530 
& NVIDIA GeForce GTX 980M?


The ones with 'N-' are git builds;   the n4.3.1 are release builds.

gpl and lgpl are the licenses for the binaries contained in them. gpl 
ones will have more libraries.


'shared'  ones have the libav libs in separate files with the ff*.exe 
files dynamically linked to them. The ones without shared are 
statically linked and have everything in the exe.


vulkan is a new-ish API for processing on a GPU. You can use the few 
vulkan filters currently in libavfilter.  Your graphics driver must 
support Vulkan else ffmpeg won't run. Yours should.


Regards,
Gyan


I like sausage, but please don't tell me what's in it.  :-]

If I want everything, and I want to be able to say that I found a bug 
using the latest git version, what do I download?


For ffmpeg bugs, any of the N- builds will do.

Gyan

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Re: [FFmpeg-user] PNGs with transparent pixels to GIF

2020-12-25 Thread Paul B Mahol
On Fri, Dec 25, 2020 at 1:24 AM Tom Sparks  wrote:

> On 24/12/2020, Carl Eugen Hoyos  wrote:
> > Am So., 20. Dez. 2020 um 07:17 Uhr schrieb Tom Sparks
> > :
> >>
> >> On 20/12/2020, vallance via ffmpeg-user  wrote:
> >
> >> > I'm trying to create a GIF from an image sequence of PNGs with
> >> > transparent
> >> > pixels, but these transparent pixels convert to black in the resulting
> >> > GIF.
> >> > I'm using the following command :
> >> >
> >> > $ ffmpeg -i toile4-4-%d.png -framerate 12 toile4.webm
> >> >
> >>
> >> Imagemagick is more suited to creating animated gifs
> >
> > I was under the impression that FFmpeg contains particularly useful
> > algorithms to produce high-quality animated gifs, is that also true for
> > ImageMagick?
> >
>
> ImageMagick has some very good Color Quantization and Dithering
> methods[1][2] and animation modes[3] that ffmpeg dose not have/support
> (as far as I know)
>
> [1]: https://legacy.imagemagick.org/Usage/quantize/
> [2]: https://legacy.imagemagick.org/Usage/video/
> [3]: https://legacy.imagemagick.org/Usage/anim_opt/



No and no, I do not have time to argue against software quality like what
is imagemagick.
I also simple do not want to waste my time on this software.

If you want to evangelize your software, please do it somewhere else.

Here it is considered extremely rude.



>
> > Merry Christmas, Carl Eugen
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