gmane.comp.video.ffmpeg.user

Re: How to determine progression

Reindl Harald — 2013-05-18T22:57:13


Am 19.05.2013 00:32, schrieb Carl Eugen Hoyos:

and the other much more important formats?


not directly but it's loaded as ldd shows below
however, the most important format is H264 with AAC audio

[harry< at >srv-rhsoft:~]$ ldd /usr/local/bin/ffmpeg
        linux-vdso.so.1 =>  (0x00007fffeadfe000)
        libpthread.so.0 => /lib64/libpthread.so.0 (0x00007f5ac4104000)
        libxvidcore.so.4 => /lib64/libxvidcore.so.4 (0x00007f5ac3ded000)
        libvpx.so.1 => /lib64/libvpx.so.1 (0x00007f5ac3b4b000)
        libvorbisenc.so.2 => /lib64/libvorbisenc.so.2 (0x00007f5ac367c000)
        libvorbis.so.0 => /lib64/libvorbis.so.0 (0x00007f5ac344f000)
        libtheoraenc.so.1 => /lib64/libtheoraenc.so.1 (0x0000003c82c00000)
        libtheoradec.so.1 => /lib64/libtheoradec.so.1 (0x0000003c8e400000)
        libmp3lame.so.0 => /lib64/libmp3lame.so.0 (0x00007f5ac31c1000)
        libfaac.so.0 => /lib64/libfaac.so.0 (0x00007f5ac2fa7000)
        libm.so.6 => /lib64/libm.so.6 (0x00007f5ac2ca6000)
        libbz2.so.1 => /lib6

Re: How to determine progression

Carl Eugen Hoyos — 2013-05-18T22:32:13


Yes;-)
And you will have a very hard time trying to link 
FFmpeg against libogg ;-))


All use cases where you provide the source files 
yourself...

Carl Eugen

Re: How to determine progression

Reindl Harald — 2013-05-18T22:06:57


Am 18.05.2013 23:58, schrieb Carl Eugen Hoyos:

* it can H264 without x264?
* it can WEBM without libvpx?
* it can ogv/ogg without libogg/libvorbis/libtheora?
* it can MP3 without libmplame?
* it can FAAC without libfaac?

in which ffmpeg version are all this codecs directly included
which is unknown for me? and no, for most cases ffmpeg without
at least H264/OGG/WEBM support is completly useless


i know no usecase where security does not matter
i only know cases where people learned the hard way that they where wrong

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Re: How to determine progression

Carl Eugen Hoyos — 2013-05-18T21:58:15


You mean libc ?
FFmpeg typically does not need any external libraries 
except zlib (which you can link statically if you want).

(Your argument that it may make sense to regularly 
update is of course valid depending on the use case.)

Carl Eugen

Re: XYZ color space -> YUV/RGB conversion possible?

Andreas Gumm — 2013-05-18T16:24:00

What I did wrong?
I have thought that asking for help about undocumented features is possible
here. Why not?
In this reason I still would think that I'm far away from hijacking threads
when doing something.

Due to the lack of finding the right command for XYZ color conversion I
have no console output.

Thanks for understanding my point
Andreas
Andreas Gumm <andreas.gumm <at> gmx.de> writes:


Yes / command line and complete, uncut console
output missing.

Please do not hijack threads, Carl Eugen

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Re: How to determine progression

Reindl Harald — 2013-05-18T21:24:23


Am 18.05.2013 23:21, schrieb Reindl Harald:

"i was talking about the ffmpeg application itself" is also naive not to say dumb

http://www.ffmpeg.org/

- Several security fixes
Fixes:CVE-2012-2772, CVE-2012-2774, CVE-2012-2775, CVE-2012-2776, CVE-2012-2777,
      CVE-2012-2779, CVE-2012-2782, CVE-2012-2783, CVE-2012-2784, CVE-2012-2785,
      CVE-2012-2786, CVE-2012-2787, CVE-2012-2788, CVE-2012-2789, CVE-2012-2790,
      CVE-2012-2791, CVE-2012-2792, CVE-2012-2793, CVE-2012-2794, CVE-2012-2795,
      CVE-2012-2796, CVE-2012-2797, CVE-2012-2798, CVE-2012-2799, CVE-2012-2800,
Fixes: CVE-2012-0853, CVE-2012-0858, CVE-2011-3929, CVE-2011-3936,
       CVE-2011-3937, CVE-2011-3940, CVE-2011-3945, CVE-2011-3947
      CVE-2012-2801, CVE-2012-2802, CVE-2012-2803, CVE-2012-2804,
Several security issues that dont have CVE numbers.
Fixes: CVE-2011-3929, CVE-2011-3934, CVE-2011-3935, CVE-2011-3936,
       CVE-2011-3937, CVE-2011-3940, CVE-2011-3941, CVE-2011-3944,
       CVE-2011-3945, CVE-2011-3946, CVE-2011-3947, CV

Re: How to determine progression

Reindl Harald — 2013-05-18T21:21:23


Am 18.05.2013 23:18, schrieb Albert Scholtalbers:

obviously you have no plan or how do you imagine a ffmpeg binary
linked against a tons of libraries will work without upgrade itself
after a dist-upgrade?

hint: it can't can you can not link *all* static and even if you
could you should not becasue these libraries may get security
updates too and mostly will

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Re: How to determine progression

Albert Scholtalbers — 2013-05-18T21:18:32

video related software?

I mean I do upgrade the OS (Ubuntu) regular. I was talking about the ffmpeg
application itself

Re: How to determine progression

Reindl Harald — 2013-05-18T20:50:41


Am 18.05.2013 22:37, schrieb Albert Scholtalbers:

you are aware that security relevant bugfixes are
happening very often for video related software?

we write the year 2013
the times of "i do not update for years" are long gone



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Re: How to determine progression

Albert Scholtalbers — 2013-05-18T20:37:12

percentagethat is output there is not what you want? It is of course not
for many

Thx Robert,

I will try that. Well ffmpeg suites my wishes at the moment, so no reason
for updating for the coming years.... ;)

Greets,

Albert

Re: ffmpeg does not display correct pixfmt for prores 4444 with alpha

Robert Krüger — 2013-05-18T17:47:29

no, because I had not looked at the code in your patch but now I did and it
works as well :-).
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Re: ffmpeg audio resample filter.

Daniel Carrasco Marín — 2013-05-18T17:30:00

Thanks for reply,

I've read the first link, but the second link is what i want ;).

Thanks!!


2013/5/18 Timothy Gu <timothygu99< at >gmail.com>

Re: ffmpeg audio resample filter.

Timothy Gu — 2013-05-18T17:17:57

On May 18, 2013 2:09 AM, "Daniel Carrasco Marín" <danielmadrid19< at >gmail.com>
wrote:
any

Did you read the documentation?

http://ffmpeg.org/ffmpeg-filters.html#aresample-1

for the filter and

http://ffmpeg.org/ffmpeg-resampler.html

for the options meaning.

Timothy G.

Re: XYZ color space -> YUV/RGB conversion possible?

Andreas Gumm — 2013-05-18T16:58:05

Ooops, sorry! Now I got it!
I was not aware that changing the subject will not create a new thread.
Sorry again & thank you for your help.

Andreas



Am 18.05.2013 18:54, schrieb Carl Eugen Hoyos:

Re: ffmpeg does not display correct pixfmt for prores4444 with alpha

Carl Eugen Hoyos — 2013-05-18T16:54:40


But you did test the default decoder this time?

Carl Eugen

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Re: XYZ color space -> YUV/RGB conversion possible?

Carl Eugen Hoyos — 2013-05-18T16:54:02


http://thread.gmane.org/gmane.comp.video.ffmpeg.user/45824/focus=45827


$ ffmpeg -i input -qscale 2 out.avi
$ ffmpeg -i input out%4d.png

Please do not top-post here, it is (also) considered 
rude.

Carl Eugen

Re: ffmpeg does not display correct pixfmt for prores 4444 with alpha

Robert Krüger — 2013-05-18T16:37:53

Great, thank you! I repeated the test described above and now results are
as expected. Output about the stream is now

    Stream #0:0(eng): Video: prores (ap4h / 0x68347061), yuva444p10le,
1920x1080, 40697 kb/s, SAR 1:1 DAR 16:9, 25 fps, 25 tbr, 25 tbn, 25 tbc

and the resulting png has the transparency where it is in the original
video.

Robert
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Re: XYZ color space -> YUV/RGB conversion possible?

Andreas Gumm — 2013-05-18T16:27:28

What I did wrong?
I have thought that asking for help about undocumented features is 
possible here. Why not?
In this reason I still would think that I'm far away from hijacking 
threads when doing something.

Due to the lack of finding the right command for XYZ color conversion I 
have no console output.

Thanks for understanding my point
Andreas

Andreas Gumm <andreas.gumm <at> gmx.de <http://gmx.de>> writes:

 > Short question, is it possible to do a color
 > space conversion from Cie XYZ to RGB or YUV
 > color space?

Yes / command line and complete, uncut console
output missing.

Please do not hijack threads, Carl Eugen

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Re: ffmpeg does not display correct pixfmt for prores4444 with alpha

Carl Eugen Hoyos — 2013-05-18T16:07:50


Should be fixed, tests are very welcome!

Carl Eugen

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Re: XYZ color space -> YUV/RGB conversion possible?

Carl Eugen Hoyos — 2013-05-18T16:06:48


Yes / command line and complete, uncut console 
output missing.

Please do not hijack threads, Carl Eugen

Re: ffmpeg does not display correct pixfmt for prores 4444 with alpha

Robert Krüger — 2013-05-18T15:40:29

great, thanks for the info!
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