The input file might not really have video frames at the rate it claims.
Could you give full ffprobe output from your input video?
-Nick
On Tuesday, November 8, 2016 6:29 AM, Carl Eugen Hoyos
wrote:
>
>
>2016-11-08 12:28 GMT+01:00 Carl Eugen Hoyos :
>
>>> ffmpeg -i movie.mkv -vf scale=-1:720
Just an update.
"-vf crop,fieldmatch,decimate" worked great.
-Nick
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> On Thursday, April 14, 2016 1:15 PM, Carl Eugen Hoyos
> wrote:
> > Nicholas Robbins writes:
>
>> > But if the input is letterboxed, you should definitely crop
>> > first.
>>
>> The input definitely appears to be letterboxed. Is there s
> On Thursday, April 14, 2016 9:22 AM, Carl Eugen Hoyos
> wrote:
> > Nicholas Robbins ffmpeg.org> writes:
>
>> I have some MKV's from a DVD that are telecined and
>> letterboxed. I would normally use
>>
>> "-vf fieldmatch,decimate&
Hello,
I have some MKV's from a DVD that are telecined and letterboxed. I would
normally use
"-vf fieldmatch,decimate"
however, I want to add a crop filter. Which order would be better? Crop before
fieldmatch or fieldmatch before crop?
Any suggestions? If it varies according to what has been
> On Monday, March 28, 2016 7:44 AM, Francesco Turco wrote:
> > I'd like to rip my DVDs and copy them to my hard disks for backup
> purposes. I'm currently doing this with a combination of mplayer and
> ffmpeg. Let me explain what I managed to accomplish so far.
You might want to look into make
> On Tuesday, February 9, 2016 6:07 AM, ValdikSS wrote:
> > It doesn't play smoothly in VLC for me either. Can you upload your file
> somewhere? Maybe I have a bug somewhere outside ffmpeg build.
Here is the one I made with "ffmpeg -i rkszxnz.mkv -threads 3 -speed 5 -vsync
0 test.webm"
http
> On Monday, February 8, 2016 1:42 AM, ValdikSS wrote:
> > I'm trying to make a webm from it, saving VFR. To visually understand if
> > the
> video is playing fine, look how Stripperella sign fades in.
>
> This command gives 23.98 CFR as expected, dropping frames as it reaches
> opening.
> O
On Sunday, February 7, 2016 1:28 PM, ValdikSS wrote:
>
>
>Hello!
>
>I'm having trouble with re-encoding VFR video. Source video consists of main
>episode part (23.98 FPS) and opening part (29.97 FPS), I've encoded these parts
>separately and joined with mkvmerge. It plays fine without stuttering.
On Thu, Feb 4, 2016 at 6:44 AM, Roman wrote:
>
> > OMFG! Let me log into the web interface and show you how it is done.
>
> So you just offer me to insert ">" symbol before every line I quote or
just
> copy the whole e-mail I'm answering to?
This was also done from gmail's website. Click on the
> On Saturday, January 9, 2016 9:11 AM, Jim Worrall
> wrote:
> > I’m doing long transcodes on my local server to avoid tying up my laptop.
> Unfortunately much of the console output gets lost in the process. So I’m
> using
> the report-writing feature of ffmpeg by creating a FFREPORT enviro
> On Tuesday, January 5, 2016 4:25 PM, Matt Zagrabelny
> wrote:
> > On Tue, Jan 5, 2016 at 3:20 PM, Andy Civil wrote:
>> Can anyone tell me if there's a command to fetch a title (this is
> DVD-speak
>> for a 'track') from a DVD file structure? I have a DVD structure in
> a
>> VIDEO_TS fold
I have been using the following to get a count of the frames in video:
PROBE=`/usr/bin/ffprobe -select_streams v -show_streams -count_frames -i
${VIDEO} 2>&1`
FC=`/bin/echo "$PROBE" | /bin/grep nb_read_frames | /usr/bin/cut -d"=" -f2`
Recently I noticed that my regular ffmpeg/ffprobe invocations
> On Monday, December 21, 2015 12:39 AM, llee782 wrote:
> > Carl Eugen Hoyos wrote
>> Your MEncoder command line includes "-ofps 24000/1001".
>> How is this supposed to work for 30fps progressive
>> input?
>
> The inverse telecine operation must yield video of 23.94 fps rather than
> 29.97 f
During some of my encodes, I get quite a lot of these warnings.
What do they mean?
For example: here is a chuck of the output I am talking about
Past duration 0.998009 too large= 718546kB time=01:33:23.23
bitrate=1050.5kbits/s dup=0 drop=7
Past duration 0.994011 too large
Past duration 0.990
On Monday, October 19, 2015 8:23 AM, Basin Ilya wrote:
>
>Hi.
>
>How do I make ffmpeg save an increased declared FPS (e.g. 120) to a clip
>header, while converting a video with a variable framerate?
I don't believe their currently is a [non-hackish] way to do this. The filter
"dejudder=cycle=n"
On Monday, July 6, 2015 1:29 PM, Carl Eugen Hoyos wrote:
>Nicholas Robbins ffmpeg.org> writes:
>
>> "-vf pullup,fps=24000/1001"
>
>Still doesn't work here (as is documented).
>
>> or "-vf pullup -r 24000/1001"
>
>This works for a ra
I have some video (cartoons) it is "30" fps.
Some of it appears to be fim->NTCS telecined (3 progressive frames, 2
"interlaced" frames)
Some of it appears to be actually 12fps doubled first and then telecined, with
most frames duplicated, and the occasional frame "interlaced."
I would like to t
> On Monday, March 16, 2015 10:58 PM, "pete...@frontier.com"
> wrote:
> > Is it possible to use ffprobe to detect the number of forced subtitles?
>
> I've found I can use "-count_frames" and look at the
> "streams.stream.X.nb_read_frames" entry to determine the number of
> subtitles in a part
I recently started getting this error in a batch of transcodes.
The files are DVD rips of a TV show that are mixed "30"fps and "24"fps. (the
credits are at 30fps.) They are in mkvs that think they are "30"fps but
actually counting frames gives something like 24.03 fps.
In the past this command
> On Thursday, February 19, 2015 10:07 PM, "pete...@frontier.com"
> wrote:
> > On Fri, 20 Feb 2015, Nicholas Robbins wrote:
>
>
>> Try adding "-forced_subs_only 1" between "-probesize
> 250M" and "-i"
>
> Thanks, th
> On Thursday, February 19, 2015 2:20 PM, "pete...@frontier.com"
> wrote:
> > OS: Fedora 14
> FFMPEG: 2.5.3 (full version info below)
>
> I'm trying to generate a vob (from dvd) that contains a subtitle stream
> into an mpeg2 with "hard" subtitles, but I only want to include the
> "forced" su
> On Wednesday, February 11, 2015 4:40 PM, marcjn wrote:
> My mistake. I can't believe I did that and overlooked it . Thanks for
> looking at the sample. The reason for the strange frame rate: I created
> that clip from a 29.97 fps telecined recording, and to be sure I had a
> constant 29.97 f
> On Wednesday, February 11, 2015 3:24 PM, Nicholas Robbins
> wrote:
> >> On Wednesday, February 11, 2015 3:21 PM, Nicholas Robbins
> wrote:
>
>>
>> I think your problem is that your media is not actually 29.97 fps.
>>
>> ffprobe reports 2
> On Wednesday, February 11, 2015 3:21 PM, Nicholas Robbins
> wrote:
>
> I think your problem is that your media is not actually 29.97 fps.
>
> ffprobe reports 28.97 fps, multiplying that by 4/5 gives 23.76
>
>
> Try just -vf pullup,fps=23.176 no fps argument.
&g
> On Wednesday, February 11, 2015 1:34 PM, marcjn wrote:
> > Carl Eugen Hoyos wrote
>> marcjn
>
>> gmail.com> writes:> I could submit sample and logIf you don't
> submit
>> them, help is extremely unlikely afaict.(This is of course not pullup
>> related.)Carl
>> Eugen___
> On Thursday, January 15, 2015 7:30 PM, Elliott Balsley
> wrote:
> > After a long break from this issue, I have a new problem. For
> example, I want to take a 24fps video and make it play slow-mo at
> 12fps. The input option -r is dropping frames, rather than slowing
> down the playback speed
> On Sunday, January 11, 2015 6:26 AM, Moritz Barsnick wrote:
> > On Sun, Jan 11, 2015 at 02:07:57 +0100, v...@gmx.ca wrote:
>
>> I liked your idea also but it didn't make quite as much sense to me
>> as the first solution. My problem is the use of the & character
>> separating the ffmpeg com
On Saturday, January 10, 2015 1:26 PM, "v...@gmx.ca" wrote:
>
>
>> Apart from that, Andy's mentioned cpufreq approach seems correct.
>
>Of the two approaches, "cpulimit" seemed the easiest to implement although it
>confuses me. According to the documentation, if I run this:
>
>cpulimit -z -e f
> On Sunday, December 21, 2014 6:45 PM, Carl Eugen Hoyos
> wrote:
> > Nicholas Robbins ffmpeg.org> writes:
>
>> I've worked through various combination of interlaced,
>> progressive, telecined, filmrate, etc. I've worked out
>> vario
> On Sunday, December 21, 2014 4:35 PM, Jan Sever wrote:
> > On 12/21/2014 8:53 PM, Moritz Barsnick wrote:
>> My bad, thanks for the clarification.
> You needn't apologize at all, your help is very notable.
>
>> I think I had this thread in the back of my mind:
>> http://ffmpeg.org/pipermail/
On Tuesday, December 16, 2014 5:56 PM, david reid
wrote:
>
>
>I can already get the video at the speed I want, my question was whether
>there was any way to handle the acceleration/deceleration to/from the new
>speed. Presently I just "jump" - which isn't great. Ideally I'd like to
>accelerate in
You might want to look into the setpts filter.
On Tuesday, December 16, 2014 9:33 AM, david reid
wrote:
I have a video that I want parts to play in real time but the majority will
be sped up to play as a time lapse at 25x. I can get the various pieces but
would like to have a smoo
> On Saturday, October 18, 2014 8:55 AM, Nicholas Robbins
> wrote:
> >> On Saturday, October 18, 2014 8:36 AM, Moritz Barsnick
> wrote:
>
>> You basically got it right. (I happened to follow the thread on
>> ffmpeg-devel, thanks for forwarding it.)
>&g
> On Saturday, October 18, 2014 8:36 AM, Moritz Barsnick
> wrote:
> You basically got it right. (I happened to follow the thread on
> ffmpeg-devel, thanks for forwarding it.)
>
> a) An inverse calculation, like in your example given. But that's just
> totally over the top, no-one can be expecte
> On Thursday, October 16, 2014 11:59 AM, Moritz Barsnick
> wrote:
> > Hi Zenny,
>
> On Wed, Oct 15, 2014 at 10:55:40 +0200, Zenny wrote:
>> New to ffmpeg. How can one create a trapezoid shaped video as a
>> overlay to the background as seen at
>> http://www.youtube.com/watch?v=_380o5B9MrA (
> On Sunday, October 12, 2014 9:47 AM, James Darnley
> wrote:
> > On 2014-10-12 14:17, Kimio Miyamura wrote:
>
>> Hello,
>>
>> I am trying to hardcode dvd subtitle into video referring the link below
>>
>> https://trac.ffmpeg.org/wiki/HowToBurnSubtitlesIntoVideo
>>
>>
>> The command l
On Friday, September 5, 2014 2:24 PM, Cecil Westerhof wrote:
>
>
>Would it be possible to combine several inputs to one video? For
>example: when I have four webcams to generate a video as follows:
>|--+--|
>| Webcam A | Webcam B |
>|--+--|
>| Webcam C | Webcam d |
llup" and
"fieldmatch." I think you are going in circles.
ffmpeg cannot do what you want, unless someone adds this "optical flow" stuff,
you are out of luck in using ffmpeg directly.
-Nicholas Robbins
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ined" to 30fps back to 24fps. Decimate is really just part of the
fieldmatch filter.
They won't help here.
-Nicholas Robbins
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> On Monday, September 1, 2014 2:33 AM, Damian Głodny
> wrote:
> >>> 1) Play the same frames slower. You can certainly do that. Putting
>
> I will have different clips, not only city shots etc. Solution above is very
> bad, result video will stutter.
-r 25 on the input should not produce s
On Friday, August 29, 2014 8:41 AM, Damian Głodny wrote:
>
>
>Ok, here it is:
>
>Sample 29.970 fps file which I want to convert to 25fps:
>http://artnmedia.pl/damian/fps/sample-29.970fps.mp4
>
>Damian Głodny artnmedia.pl> writes:
>
>> I tried many ffmpeg filters like pullup, telecine, fieldmat
> On Sunday, August 10, 2014 10:55 AM, Carl Eugen Hoyos
> wrote:
> > Nicholas Robbins ffmpeg.org> writes:
>
>
>> I found that ffmpeg couldn't find the subtitles
>> or chapters in the dumpstream properly.
>
> Command line and complete, uncut con
> On Sunday, August 10, 2014 9:40 AM, Carl Eugen Hoyos wrote:
> > Nicholas Robbins ffmpeg.org> writes:
>
>> I don't have a specific bug, I'll look into the
>> dvd2concat tool soon
>
> As explained, I strongly suggest to use mplayer -dumpst
> On Sunday, August 10, 2014 9:18 AM, Carl Eugen Hoyos wrote:
> > Nicholas Robbins ffmpeg.org> writes:
>
>> I found it works much better than all of the other
>> FOSS solutions I tried. It can produce mkv's that
>> have the original mpeg2 and o
it is a bit tricky to
>use.
>
>Regards,
>
>--
> Nicolas George
You might also want to check out makemkv(con) it is only free like beer not
like speech, but I found it works much better than all of the other FOSS
solutions I tried. It can produce mkv's that have the o
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