Hi,
I wish to have the crop retancle to move from position 200 to 400, when 4
seconds are laps.
Why does it only work along the x-axis?
*Along x-axis, this works, crop rectangle jumps from x=200 to x=400 when
t>4*
ffmpeg -y -i "30secGraduated1280x720.mp4" -vf
"crop=in_w-780:in_h-200:if(lt(t\,4)\,
>* Executing
*>* ffmpeg -y -i VTS_01_2.VOB -c copy -t 50 VTS_01_2_CUT.VOB
*>>* Leads to this warning
*>* Timestamps are unset in a packet for stream 0. This is deprecated
*>* and will STOP WORKING in the future. Fix your code to set the
*>* timestamps properly
*
This warning should have no relevanc
Hi,
Executing
ffmpeg -y -i VTS_01_2.VOB -c copy -t 50 VTS_01_2_CUT.VOB
Leads to this warning
Timestamps are unset in a packet for stream 0. This is deprecated and will
STOP WORKING in the future. Fix your code to set the timestamps properly
PROBLEM: how to lossless copy?
Now, if I try
ffmpeg -y
When copying a part of x264 video, ffmpeg -i of the extract reports:
"[mov,mp4,m4a,3gp,3g2,mj2 @ 001e6300] Could not find codec
parameters for stream 0 (Video: h264 (avc1 / 0x31637661), none, 620x360,
216 kb/s): unspecified pixel format
Consider increasing the value for the 'analyzeduration
RE: https://trac.ffmpeg.org/wiki/Capture/Desktop
Microsoft Windows [version 10.0.14393]
(c) 2016 Microsoft Corporation. Tous droits réservés.
C:\WINDOWS\system32>ffmpeg -f dshow -i video="screen-capture-recorder"
e:\output.flv
ffmpeg version N-81960-g1bda0ee Copyright (c) 2000-2016 the FFmpeg
de
Is this a regression bug?
2016-09-05 10:40 GMT+02:00 Sub Phil :
> >
>
> Please test current FFmpeg git head before reporting issues on this mailing
> list.
>
>
> Sorry, but same histogram results for every CLI, here's one
>
> ffmpeg version N-81516-gbe07c25
>
Please test current FFmpeg git head before reporting issues on this
mailing list.
Sorry, but same histogram results for every CLI, here's one
ffmpeg version N-81516-gbe07c25 Copyright (c) 2000-2016 the FFmpeg
developers
built with gcc 5.4.0 (GCC)
configuration: --enable-gpl --enable-versi
Hi,
I wish to have an histogram of portion of an audio file, however the
seeking (-ss) and cut (-t) operator provide very different histogram
results.
Quid re-opening of bug 1727?
These are my CLI with -ss before -i
ffmpeg -ss 17401 -t 2 -i "20160903 1 oreiller fin 8h08.3gp" -af
volumedetect -f
I wish to convert to normalize an amr file, however I get an I/O error.
In case it would be a bug in ffmpeg, which tool can I use to boost the
volume.
Console output:
F:\ffmpeg -y -v 9 -loglevel 99 -i "Vocal 050.amr" -c:a libmp3lame 050.mp3
ffmpeg version N-80256-g0a9e781 Copyright (c) 2000-2016
Unusual post.
I was wondering how the website www.ffmpeg.org is maintained and in
particular regarding the news feed.
Are the html hard coded or generated on the fly?
Any CMS tools?
Thanks
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t; To: FFmpeg user questions
> Subject: Re: [FFmpeg-user] How to pan hozitonally on a video?
>
> On 1/26/16, Sub Phil wrote:
> > RE:https://www.ffmpeg.org/ffmpeg-filters.html#zoompan
> >
> > Hi,
> >
> > I have a 30 sec video in 1920x1080@25fps
> >
> >
RE:https://www.ffmpeg.org/ffmpeg-filters.html#zoompan
Hi,
I have a 30 sec video in 1920x1080@25fps
I want to pan/crop with a constant rectangle of 1200x980
It rectangle starts at position (0,0) till t=10 sec
than from t=10 sec to t=20sec I wish my rectangle to move at a
constant/linear speed fr
RE:
https://trac.ffmpeg.org/wiki/Create%20a%20video%20slideshow%20from%20images
To see why some animated GIF are not working in the export of LibreOffice
Impress, I compare thanks to ffprobe.
I noticed that working animated GIF has:
r_frame_rate=20/1
avg_frame_rate=20/1
While non working animate
Thanks.
In the meantime, which alternative tool can do it?
2015-05-26 0:59 GMT+02:00 Carl Eugen Hoyos :
> Lou lrcd.com> writes:
>
> > Doesn't seem to be a publicly viewable link.
>
> Sorry!
>
> http://www.google-melange.com/gsoc/project/details/google/gsoc2015/lalwani1994/5668600916475904
>
> Ca
> I believe SRT will allow you to set the text color.
Yes, if I encode in mkv container, instead of mp4, it does work.
> Does MP4 "streaming text format" or 3GPP TS 26.245 Timed Text allow
any formatting?
No the foggiest idea.
Now, if I extract the srt from the output mp4, it shows that it lost
Hi,
I want to embedded srt subtitle with colours, do I miss something in the
CLI or is it not fully implemented into ffmpeg?
The separed files - video and srt - do play as expected into SMplayer.
Thanks.
My srt file being:
00:00:04,000-->00:00:04,800
Ought to be BLUE
00:00:08,000-->00:00:09,1
In wich case one would want to have output limit, but unlimited input, viz
why reading the all stream if it is to stop it's output
2015-04-12 11:56 GMT+02:00 Moritz Barsnick :
> On Sun, Apr 12, 2015 at 00:28:07 +, Carl Eugen Hoyos wrote:
> > > Move -t behind -i, since -t always was an out
Hi,
I want to scientifically measure some experiments, therefore I first need
duration (timecode) calibration.
However, I observe inconsistencies, may be due to my wrong use of ffmpeg,
can you help.
Test process:
1/ I recorded a chronometer lapse of about 25s on my smartphone with a
camera.
2/
>
>
> http://superuser.com/questions/686621/how-to-use-slow-motion-effect-in-a-specific-time-interval-with-ffmpeg
>
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a_radius=min(h\,w)/10:luma_power=1:chroma_radius=min(cw\,ch)/10:chroma_power=1
2014-12-16 23:18 GMT+01:00 Moritz Barsnick :
>
> Hi Sub,
>
> On Tue, Dec 16, 2014 at 22:22:48 +0100, Sub Phil wrote:
> > I wish to have a fixed size cropping rectangle, that changes its
> x-posi
Ref:
* https://www.ffmpeg.org/ffmpeg-utils.html#Expression-Evaluation
* https://www.ffmpeg.org/ffmpeg-filters.html#Examples-22
Hello,
I wish to have a fixed size cropping rectangle, that changes its x-position
after say 15 sec for an initial x position of say 200 to 100.
Do I miss some quotes??
peg to fix VTS_01_4.VOB which
is jerking, but the transcoding changes the (audio) streams order, so that
I can not concat anymore with the others vob.
2014-12-15 14:36 GMT+01:00 Carl Eugen Hoyos :
>
> Sub Phil gmail.com> writes:
>
> > >Writing dvdnav packets is not support
three mp4
files.
* concat them.
2014-12-13 19:26 GMT+01:00 Carl Eugen Hoyos :
>
> Sub Phil gmail.com> writes:
>
> > First, why I with following cli it can't copy all
> > streams of a vob files?
>
> Writing dvdnav packets is not supported.
>
> > Secon
Hello,
Thanks for this community.
First, why I with following cli it can't copy all streams of a vob files?
Feature not implemented, I get error -1?
ffmpeg -i VTS_01_4_ORIGINAL.vob -map 0 -c copy oscar4.vob
ffmpeg version N-68399-g10ef8f0 Copyright (c) 2000-2014 the FFmpeg
developers
built on
Hi,
What does ffmpeg actually do in copying streams??
ffmpeg -i movie.mp4 -c copy copied.mp4
Indeed, as I noticed, ffmpeg changes some metatag data, but what else
because, my input file is 326,736Kb while the output is larger and is
382,819Kb.
Rmk: copied.mp4 is MD5 equivalent to copied2.mp4:
ff
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