On Wed, 21 Aug 2024 at 12:15, Nicolas George wrote:
>
> Oliver Fromme (12024-08-21):
> > I'm sorry this mail is going to be rather long. However, I would
> > like to explain my opinion on this matter in detail.
>
> You are more patient than this issue deserves.
I enjoyed reading Oliver's explana
On Tue, 20 Aug 2024 at 20:33, Ulf Zibis wrote:
> 4. I'm fine with the result, that FFmpeg developers don't want to provide my
> proposal.
>
> But please *avoid inapplicable arguments*.
It is unlikely at this point you will receive an argument you deem applicable.
A call to an OS functio
On Wed, 7 Aug 2024 at 10:56, Oliver Fromme wrote:
>
> Rob Hallam wrote:
> > I'd like to programmatically detect the 'busiest' parts of a video- ie
> > the most visually active areas. I am leaving audio aside for the
> > purposes of considering this.
>
> > On 7 Aug 2024, at 11:04, Phil Rhodes via ffmpeg-user
> > wrote:
> >
> > Might this be achieved simply by detecting the differences between adjacent
> > frames?
>
>
> Sleeping cat
> Cut to:
> Plant on windowsill
> Bouke
Heh.
Interesting thought. Question is- how do you detect differences?
Hi Mark, thanks for your suggestion too.
On Tue, 6 Aug 2024 at 23:34, Mark Filipak wrote:
>
> Hey Rob,
>
> On 06/08/2024 08.40, Rob Hallam wrote:
> > Hi,
> >
> > I'd like to programmatically detect the 'busiest' parts of a video- ie
> > the m
Thanks for chiming in, inhahe.
On Tue, 6 Aug 2024 at 16:20, inhahe wrote:
>
> On Tue, Aug 6, 2024 at 8:41 AM Rob Hallam wrote:
> > I'd like to programmatically detect the 'busiest' parts of a video- ie
> > the most visually active areas. I am leaving au
Hi,
I'd like to programmatically detect the 'busiest' parts of a video- ie
the most visually active areas. I am leaving audio aside for the
purposes of considering this.
I figured it might be possible by looking at one / more of:
- the bitrate for VBR videos -- a higher bitrate for a given segm
On Sun, 30 Jun 2024 at 03:00, Mark Filipak wrote:
> On 29/06/2024 20.58, Rob Hallam wrote:
> > On Sat, 29 Jun 2024 at 23:37, Mark Filipak
> > wrote:
> Contrary to what is shown above, I did not write that.
Apologies, I was trying to cut out some of the half-dozen levels of
qu
On Sat, 29 Jun 2024 at 23:37, Mark Filipak wrote:
>
> On 29/06/2024 18.19, Rob Hallam wrote:
> > On Sat, 29 Jun 2024 at 22:35, Mark Filipak
> > wrote:
> >>> Only if your router is misconfigured to let all ports through to your
> >>> internal network
On Sat, 29 Jun 2024 at 22:35, Mark Filipak wrote:
> > Only if your router is misconfigured to let all ports through to your
> > internal network by default. If it does, then a relatively uncommon
> > piece of MPEG software will be the least of your problems.
>
> That is not true, and if Oliver us
On Fri, 21 Jun 2024 at 15:05, Bouke / Videotoolshed
wrote:
>
> On 21 Jun 2024, at 15:49, Rob Hallam wrote:
> >
> > are you actually planning to
> > distribute?
>
> www.videotoolshed.com
> I’m selling video software for some 20 years now, so, yes.
> (And I’m in
On Fri, 21 Jun 2024 at 14:33, Bouke / edit 'B wrote:
> Then there is the issue on how to distribute / legal stuff, where I don’t
> want to burn my fingers.
> (There were a few lawsuits to a Dutch guy from Real Media, they sued a guy
> who provided a link (note, link, not download) on his hobby
On Wed, 19 Jun 2024 at 17:21, Mark Filipak wrote:
>
> On 19/06/2024 12.02, Rob Hallam wrote:
> -snip-
> > I can confirm I see a pause at "23%", though mpv reports it as
> > 00:00:00 and then a seeming jump or fast increment through
> > percentages. I would
On Wed, 19 Jun 2024 at 16:55, Mark Filipak wrote:
>
> I'm sorry, Rob, press [Shift][L] to loop MPV.
No worries, I found another way :)
Cheers,
Rob
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To u
On Wed, 19 Jun 2024 at 16:17, Mark Filipak wrote:
> MPV is more powerful and I think you'll like it. When it loads, quickly press
> the [L] key
> (unshifted) to loop,
As an aside, I couldn't get mpv to loop by pressing 'L', though it
reported A-B loop; instead I created an mpv.conf file with con
On Wed, 19 Jun 2024 at 14:23, Mark Filipak wrote:
> I think this may be a far ranging bug that affects '-ss' and that provokes
> many of the
> "non-monotonous DTS" error messages that seem to appear out of nowhere when a
> trivial, non-timing,
> non-timestamp change is made to a transcode or to
The visuals look good! Nice work. I don't want to detract from that, but:
On Mon, 4 Mar 2024 at 00:11, Mark Filipak wrote:
> On 03/03/2024 18.33, Jim DeLaHunt wrote:
> >... It is hard to count out 45 from single-digit numbers. 00..44 would be
> >much clearer.
>
> I agree, and I would have "0..44
On Tue, 16 Jan 2024 at 12:39, Rob Hallam wrote:
>
> (off topic but asking here as someone might remember the term)
>
> In the last year or two there was - I think - a user on this ML who
> prefixed or suffixed their query with wording to the effect of,
>
> "I am new to t
(off topic but asking here as someone might remember the term)
In the last year or two there was - I think - a user on this ML who
prefixed or suffixed their query with wording to the effect of,
"I am new to this so I don't know what I don't know, so please help me
avoid leaving out needed info"
On Mon, 8 Jan 2024 at 23:02, Mark Filipak wrote:
> [explanation snipped]
> Oh, I think I see why your difficulty, Rob.
Thank you for taking the time to write the explanations, they are much
appreciated.
My difficulty, as you guessed, is I don't know about the internals of
video containers.
I t
On Mon, 8 Jan 2024 at 12:37, Mark Filipak wrote:
>
> On 1/8/24 07:16, Rob Hallam wrote:
> > On Mon, 8 Jan 2024 at 12:07, Mark Filipak
> > wrote:
> >
> >> For example, if 'v' (video) and 'a' (audio) packets go from
> >> v-a-a-a-a-v-
On Mon, 8 Jan 2024 at 12:07, Mark Filipak wrote:
> For example, if 'v' (video) and 'a' (audio) packets go from
> v-a-a-a-a-v-a-a-a-a-v... to
> a-a-a-a-a-a-a-a-v-v-v..., then somethings wrong, eh? That's the kind of
> difference I'm seeing
> between the two versions of 01.mp4.
Forgive me for jum
On Sun, 31 Dec 2023 at 05:24, Jamenson Espindula wrote:
> I am totally new to Blender, but I noticed that software uses some
> libraries from the FFmpeg project (libavcodec, libavdevice,
> libavformat, etc.). Also, Wikipedia says Blender uses FFmpeg. Blender
> itself says ("Output Properties") the
As has been stated, it seems vanishingly unlikely there will be a relicense.
However, it seems there is a misconception about the GPL here:
On Tue, 28 Nov 2023 at 10:24, Suminda Sirinath Salpitikorala
Dharmasena wrote:
>*GPL means that all forks need to be public, not that the modifications need
On Mon, 6 Nov 2023 at 03:42, wrote:
> The Question:
> Do you have any advice regarding colormatrix?
> Thanks for any advice for relieving a headache
> --Mark.
If you haven't already, it might be worth tackling this from another
direction. Look at the credits for the remaster, figure out who was
i
On Sun, 15 Oct 2023 at 22:46, Andrew Randrianasulu
wrote:
> I think Paul trolled us a bit, from that I can see Cinepack decoder and
> encoder still around at
>
> https://git.ffmpeg.org/gitweb/ffmpeg.git/tree/HEAD:/libavcodec
Indeed, or simply:
$ ffmpeg -codecs | grep cinepak
DEV.L. cinepak
On Thu, 5 Oct 2023 at 20:59, Francisco via ffmpeg-user
wrote:
> Greetings:
>
> We are making music videos, we made this one with Kdenlive:
> https://www.youtube.com/watch?v=Z0nrq3EzGR0
> We want to automate the process using ffmpeg (command line if
> possible).
> [snip]
What have you tried so far
On Thu, 16 Mar 2023 at 09:59, Bo Berglund wrote:
> What is the reason for this when the tmp files obviously are created just fine
> using ffmpeg in an earlier step???
https://ffmpeg.org/pipermail/ffmpeg-devel/2013-February/138400.html
> What can be done about it?
-safe 0 as stated options:
http
On Sat, 28 Jan 2023 at 11:08, Michael Koch wrote:
> Hello all,
>
> this is not a question. This cool equation was designed by Hamid Naderi
> Yeganeh. I did only translate it into a FFmpeg command. Let it run and
> see what comes out.
> [snip]
Neat!
Here's the same thing but with commas and semic
> > On 11/8/2022 2:50 PM, Dave Blanchard wrote:
> On Wed, 9 Nov 2022 at 17:08, Carl Zwanzig wrote:
>> Are you seriously asking me this? What a stupid question.
> Dead serious (and hardly stupid). If that particular software is so
> necessary to your process, stop complaining that nobody else is wo
On Mon, 10 Oct 2022 at 13:29, Bo Berglund wrote:
> I have tried in various places to get a solution to this problem without
> success
> so I try it here too:
Haven't you asked this or something similar here already?
> But then one needs to *manually* do this every 4 hours or so or else lose out
On Sun, 9 Oct 2022 at 10:13, Reindl Harald wrote:
> and now compare my reply with that nonsense!
Sorry if that upset you.
> and after 5 replies you see pretty clear what are older quotes, what are
> the current responses to what
I'm quite capable of reading either format, I suspect many other
p
On Sun, 9 Oct 2022 at 10:01, Reindl Harald wrote:
> > MN> > $ ffmpeg -f concat -i mylist.txt -c copy output.mp4
>
> this "MN>" and "BB>"" nosense is unredable
I have no difficulty reading these indicators.
Cheers,
Rob
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On Thu, 15 Sept 2022 at 13:50, Bruchez Olivier via ffmpeg-user
wrote:
> I understand, but the file is quite large (146 GB), so it's a bit difficult
> to share. :(
Side question: can an incomplete AVI be played? If yes/'it depends',
perhaps a portion of OP's file might be illuminating?
Cheers,
R
On Mon, 13 Jun 2022 at 11:26, Cecil Westerhof via ffmpeg-user
wrote:
> That could very seldom work, but is certainly not a general solution.
> In the past I was told to do it like this because it was faster. Then
> I got problems with the output and was told how iframes work.
What problems, exact
On Mon, 13 Jun 2022 at 10:40, Cecil Westerhof via ffmpeg-user
wrote:
> I know that because of iframes you need to put the inputfile before
> the start and to parameters if you want to sure that the start time is
> correctly used. Because of this I defined the following function.
(snip)
Have you
On Wed, 4 May 2022 at 08:27, Bo Berglund wrote:
> I have a script that downloads a video live stream into a mp4 file while on
> the
> fly changing the format, basically re-encoding the video.
> It uses this basic download command:
>
> CMD="ffmpeg -hide_banner ${MODE} -i \"${M3U8URL}\" -vf scale=w
On Mon, 18 Apr 2022 at 14:01, Bo Berglund wrote:
> On Mon, 18 Apr 2022 12:53:19 +0200, stefano roveda wrote:
>
> >Dear reino, i found the thread very interesting i don see any reason fir
your comment in that case
[ed: quote fixed to original]
> >Anyway thank you for taking care.
>
> I can supply
On Mon, 11 Apr 2022 at 09:42, Bo Berglund wrote:
> I have tried other linix oriented lists like Ubuntu users but got no replies.
Did you try asking / discussing with the yt-dlp/youtube-dl communities
as previously suggested? Figuring out how to get videos from web pages
is their entire deal.
Che
On Fri, 11 Mar 2022 at 17:25, Bo Berglund wrote:
> And using F12 to show the streaming data gives me the URL:
>
> https://hbzpjnctrztwpucm.wzcdn134.net:8443/hls/cshr1ujg6u-32171144940.ts
>
> But that is not an m3u8 URL I can use with ffmpeg...
>
> I tried using it as an input stream with the.ts e
On Tue, 8 Feb 2022 at 06:27, Mark Filipak wrote:
>
> On suggestion, I tried web hosting suppliers and failed.
I realise you said "no git please!" but if you ever did a little git,
you could use github pages (https://pages.github.com/) to serve simple
HTML. You'd only need a couple of the commands
On Mon, 7 Feb 2022 at 17:05, Reindl Harald wrote:
> why do you then respoind at all?
> to achieve what expect noise?
To forestall the usual cycle of:
- "Reindl you could use different language"
- "Reindl you don't need to insult people"
- "Reindl you should do this, don't do that, etc etc etc"
On Mon, 7 Feb 2022 at 16:29, Reindl Harald wrote:
> god damned calling re-encode a lossy file a "stupid idea" isn't abusive
> - you guys should learn to distinct between "are you stupid" and "stupid
> idea"
I did not say that it was! I do not particularly care about this
instance- I let Kieran O
On Mon, 7 Feb 2022 at 15:53, Kieran O Leary wrote:
> Is this kind of talk against the code of conduct? I don't think you need to
> blast somebody's needs as 'stupid', we don't know the use case here. (Sorry
> if cc'ing you JB is against etiquette, I just wanted to flag this message)
On paper...
On Wed, 2 Feb 2022 at 15:12, Stewart Channon wrote:
> Trying to install full recording functionality with Ffmpeg on Kodi app
> installed on Firestick
Sounds like you want help from the Kodi community: https://forum.kodi.tv/
Cheers,
Rob
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Context: I am making videos by combining two sets of game footage, one
I record myself and I grab the other one which my friend streamed to
Twitch. I want to get the two as closely 'aligned' (in A/V sync) as
possible to save time when I work with clips from the footage later in
an NLE (Blender VSE)
On Sun, 9 Jan 2022 at 17:15, Steven Kan wrote:
> I’m a little late to this party, and it’s not strictly an ffmpeg solution,
> but have a look at Lossless Cut:
> https://mifi.no/losslesscut/
> It does exactly what you want, graphically, with the option to cut at key
> frames (or not),
Interestin
On Sun, 9 Jan 2022 at 16:39, Bo Berglund wrote:
> Well, I am on Ubuntu so Windows stuff is not useful...
In a pinch, a VM or wine can sometimes be of use.
> So I had to give up
> Too bad.
Did you try their .deb?
https://www.videlibri.de/xidel.html#downloads
Also listed in their GitHub rel
On Sun, 9 Jan 2022 at 11:34, Michael Koch wrote:
> Is it possible to re-encode only the beginning and the end, and use
> -codec copy for the central part?
How apropos! *
I've been trying to do essentially this for years- it was the reason I
subscribed to and posted to this list initially. It wo
On Fri, 17 Dec 2021 at 10:17, Bo Berglund wrote:
> I am downloading the *same* content using the command above but from 3
> different
> locations.
Have you verified this?
Put simply: something may look and sound superficially the same, but
be encoded differently.
Stream copies of media from di
On Wed, 15 Dec 2021 at 18:06, Cecil Westerhof via ffmpeg-user
wrote:
> Does YouTube has a preference for one, or the other?
YT accepts both, and has h264 encoding suggestions:
https://support.google.com/youtube/answer/1722171
As for whether it prefers one or the other, it seems unlikely as they
On Tue, 16 Nov 2021 at 09:52, Bo Berglund wrote:
> On Tue, 16 Nov 2021 13:51:58 +1000, Adam Nielsen via ffmpeg-user
> wrote:
> >Sounds like you need to improve your logging :-P
> And I have no say over what ffmpeg is logging or where, right?
You do. You can use `-report'; see
http://ffmpeg.org/f
> youtube-dl
While youtube-dl still works for many things, there hasn't been a
release since June 2021.
If you run into issues, you might have better luck with a fork like yt-dlp [1].
Cheers,
Rob
[1]: https://github.com/yt-dlp/yt-dlp
___
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On Thu, 7 Oct 2021 at 10:11, mc36 wrote:
> i'm streaming music from one of my machines in my home with multicast.
> there is one headend, and several listeners in the rooms.
While you may have good reason to use vlc / ffmpeg in this way, as a
frame challenge I would suggest using a synchronising
On Thu, 7 Oct 2021 at 06:04, Pavel Koshevoy wrote:
>
> Am I the only one having this problem:
>
> $ git pull
> fatal: unable to access 'https://git.ffmpeg.org/ffmpeg.git/': SSL
> certificate problem: certificate has expired
Working here.
---
Certificate:
Data:
Version: 3 (0x2)
> sources).
You may be interested in the discussion thread here:
http://ffmpeg.org/pipermail/ffmpeg-user/2020-June/049022.html
(Next by thread is useful)
My last reply also wondered the same thing.
On Wed, 17 Jun 2020 at 16:19, Rob Hallam wrote:
> Is it worth documenting this on the wiki,
t support youtube url's"
Something about this discussion felt very familiar.
On Wed, 7 Jul 2021 17:08:37 +0100, Rob Hallam wrote:
> Please see my other reply to your other message- ffmpeg does not (to
> my knowledge) operate on web pages, as opposed to multimedia files.
http://ffmpeg.org
On Wed, 7 Jul 2021 at 16:49, Bo Berglund wrote:
> So ffmpeg must accept the -i argument as an on-line stream somehow...
Please see my other reply to your other message- ffmpeg does not (to
my knowledge) operate on web pages, as opposed to multimedia files.
Cheers,
Rob
PS It may be worth checkin
On Wed, 7 Jul 2021 at 13:52, Bo Berglund wrote:
> But still teh same error:
>
> $ ffmpeg -i https://youtu.be/sAt6nY2BWNw -vf "freezedetect=n=0.01:d=5" -map
> 0:v:0 -f null -
> [...]
> https://youtu.be/sAt6nY2BWNw: Invalid data found when processing input
Have you successfully used ffmpeg on a You
On Wed, 7 Jul 2021 at 13:43, Bo Berglund wrote:
> On Wed, 07 Jul 2021 14:21:15 +0200, Bo Berglund wrote:
> >So is there a way to check if a video is static and generate an error in
> >that case?
> >Something like:
> >ffmpeg -i input_url -checkstaticvideo
> >
> >Is this possible?
If you cannot
Glad you have enough info to proceed at your own pace. At the risk of
straying a little off-topic, I'll make a couple more very brief
suggestions, do with them what you will!
On Tue, 29 Jun 2021 at 18:31, wrote:
> Rob Wrote:
> >Is there a reason it needs to be preserved as '4K', specifically?
>
>
Please regard this as a frame-challenge set of suggestions or pointers
to point you in directions you might not otherwise have considered.
On Tue, 29 Jun 2021 at 13:58, wrote:
> Back to my original issue with much more clarity.
> I'm trying to figure a way to preserve the 4K content from a 50GB
On Tue, 22 Jun 2021 at 17:52, Carl Zwanzig wrote:
>
> On 6/22/2021 9:26 AM, Rob Hallam wrote:
> > Is that always true? When I have tried (eg [1]) the second input
> > starts*after* the first, easiest to see with eg testsrc filter.
>
> No time to try this at the mome
On Tue, 22 Jun 2021 at 16:53, Carl Zwanzig wrote:
> Something else to consider is that all inputs start at the same time, so if
> you want to fade between two clips, you have to pad or delay the second so
> that it starts at the beginning of the fade. There will be examples of this
> if you search
On Tue, 22 Jun 2021 at 11:15, wrote:
> Video 1 - 13 seconds with audio
> Video 2 - 4 seconds without audio (I generated this video using xfade
> transition
> Video 3 - 4 seconds with audio
>
> If I concatenate video 1 and 3 everything works fine; audio synchronization
> is correct from start to
On Mon, 21 Jun 2021 at 21:07, wrote:
>
> Attached is a result of a transition using two videos, one totally black and
> one totally white, using radial transition.
>
> Each video has 9 seconds and the transition command is:
>
> Ffmpeg -i black.mp4 -i white.mp4 -filter_complex
> "xfade=transition=r
On Sun, 20 Jun 2021, 15:51 , wrote:
> Ffmpeg -ss 6 -i input.mp4 -to 6 -c copy output.mp4
>
Did you try without doing a combined stream copy and seek apropos of my
other reply?
Rob
>
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On Sun, 20 Jun 2021 at 13:28, wrote:
> Now I want to create a new video by extracting the part that has the
> transition, with an additional second on each side, so I want to cut from 6
> to 12 and I use the following:
>
> Ffmpeg -ss 6 -i input.mp4 -to 6 -c copy output.mp4
>
> I expect a final vi
On Wed, 9 Jun 2021 at 21:52, Carl Eugen Hoyos wrote:
> This is a regression, works fine with FFmpeg 3.2, I opened ticket #9287.
>
> Thank you for the sample, Carl Eugen
My pleasure, thank you for looking into this and opening the ticket,
I'll watch it with interest.
Much appreciated,
Rob
___
On Tue, 8 Jun 2021 at 00:57, Carl Eugen Hoyos wrote:
>
> Feel free to provide sample file(s) after confirming that the issue is
> reproducible with current FFmpeg git head, the only version supported on this
> mailing list.
>
Thank you for replying, Carl. I have compiled git head (ffmpeg
N-1026
Good day all,
A friend loaned me a Dohiker trail camera. It was set up
to trigger a 20 second recording when movement is
detected.
It produced AVI files after I set it up overnight. However,
while some of the videos play both video and audio,
others have no video, only audio when played with
VLC
On Sun, 16 May 2021 at 07:11, Martin Woolley wrote:
> Would you mind educating me (or helping me educate myself)? What is HXVF /
> HXVS / HXVT and is there a specification I can read covering this?
There are some potentially interesting reads searching for those terms:
- https://spitzner.org/k
On Sat, 10 Apr 2021 at 13:43, William Breathitt Gray
wrote:
> $ ffprobe VID_20210401_150222.mp4 -hide_banner
> ...
> com.android.version: 11
This looks like it's been created on a mobile device. I have had
experience of a phone creating a 'truncated' file which cut off
before the actual due
On Sat, 27 Mar 2021 at 11:39, Peter White wrote:
>
> On Sat, Mar 27, 2021 at 08:15:23AM +0100, Bo Berglund wrote:
> > I am using ffmpeg in scripts to download from a live stream TV channel
> > nightly
> > so I can view the shows in the morning.
>
> I also seem to remember that there are some filt
On Tue, 9 Mar 2021 at 10:48, mX wrote:
> Can someone with list admin access (admins at foot of this email) please
> update the footer for this mailing list to assist new posters
I am in favour of general etiquette directions in the footer, as suggested.
That said, I'm not sure this will help mu
On Tue, 9 Mar 2021 at 11:36, Nicolas George wrote:
>
> What makes you think the people who do not read the list guidelines and
> FAQ will read the list footer?
Quick q: is the current footer as minimal as whatever local
laws are applicable? I assume it has basic identity and
unsubscribing info in
On Tue, 9 Mar 2021 at 10:26, Jim Hollingsworth wrote:
> Unsubscribe!!!
Before the inevitable flames: to unsubscribe, please read the
footer of the email you replied to and follow the instructions there.
For convenience:
> https://ffmpeg.org/mailman/listinfo/ffmpeg-user
> To unsubscribe, vis
Since no-one else has yet weighed in.
On Fri, 5 Mar 2021 at 05:57, Mark Filipak (ffmpeg)
wrote:
> Please, enlighten this poor bastard.
Doxygen is "a documentation generator and static analysis tool for software
source trees".
The first link you include is the source listing for matroska.h, a h
On Tue, 23 Feb 2021 at 17:55, Mark Filipak (ffmpeg)
wrote:
> [ information on PTS ]
Interesting information, thank you for sharing those insights.
Without wanting to cast aspersions, does this mean that ffmpeg does
something different with regards to timestamps than the MPEG spec?
If this is th
On Mon, 15 Feb 2021 at 21:00, MERT Gürtürk wrote:
> Hi,
> I do not want to receive mail anymore.
> Please remove me from your mail notifications
In the footer of every email sent by the list:
"""
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htt
On Mon, 15 Feb 2021 at 14:48, Phil Rhodes via ffmpeg-user <
ffmpeg-user@ffmpeg.org> wrote:
>> On Monday, 15 February 2021, 13:58:30 GMT, Michael Koch <
astroelectro...@t-online.de> wrote:
>> A few developers (not all!) are actively fighting against any changes
in the documentation. It seems
>>
On Mon, 22 Jun 2020 at 13:49, Lhuillier Sébastien <
sebastien.lhuill...@gmail.com> wrote:
> Since my last post, I have totally broken my distro
If you'll permit a friendly tip outside the scope of this ML...
As you have reinstalled anyway, now is a great time to
consider i) backups and ii) conta
On Wed, 17 Jun 2020 at 16:19, Rob Hallam wrote:
> So it seems that (i) xfade shortens the inputs' combined duration
> by half the transition duration; (ii) acrossfade does not shorten
> if there is no overlap (as expected); (iii) acrossfade shortens
> by the duration of fade if
On Wed, 17 Jun 2020 at 13:06, Paul B Mahol wrote:
> First try single xfade and acrossfade combination.
Great suggestion. I tried that with synthetic inputs of 10 seconds
duration [1].
ffmpeg -i test10e.mkv -i test10d.mkv -filter_complex
"[0][1]xfade=transition=dissolve:duration=2:offset=9,forma
On Wed, 17 Jun 2020 at 11:34, Paul B Mahol wrote:
>> ie neither should change the length of the inputs they operate on.
>>
>> Is that a mistaken assumption perhaps?
> Yes, very mistaken.
> Duration of output is first input duration + second input duration -
> duration of transition.
> For xfade
On Tue, 16 Jun 2020 at 23:56, Paul B Mahol wrote:
>> TR1=764.3# input 0 duration - 1 second
>> TR2=1250.498# input 0 + input 1 duration - 1 second
> I believe this two should be - 2 seconds instead. Because both
> transition durations for two xfade and acrossfade filters is 2
> seconds.
Hi all,
tl;dr: with the same duration, should xfade and
acrossfade produce synched output?
I'd like to join three videos together, which have
audio and video streams of virtually the same
length. I thought I'd give the xfade [0] filter a
try as it looked useful. To fade the audio as
well I used a
On Mon, 15 Jun 2020 at 17:26, Carl Zwanzig wrote:
> Add delay- how long? (delay is memory- or disk-intensive*) OBS can
insert a
> short delay, but longer ones usually mean writing data into a file and
> playing it back later (which could be only 5 seconds). There are many
> "gotchas" around that
On Thu, 30 Apr 2020 at 18:55, Carl Eugen Hoyos wrote:
> This is ticket #7759.
>
> Carl Eugen
>
Ah! Thanks for the info, good to know it's been reported and tracked.
Cheers,
Rob
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Hello all, thanks in advance for reading and providing help.
I am creating a yuva420p webm file from 300 RGBA PNG images. I intend to
have a framerate of 60, and so have a clip exactly 5 seconds long. However
this is not the case; the resulting file has (ffprobe) DURATION of 4.934
seconds. Visuall
>
> On 04/21/2020 02:12 AM, Jim DeLaHunt wrote:
>
> > One kind of documentation that I haven't seen around ffmpeg which I
> think might be very helpful is a
> > glossary.
>
Agreed. While many won't read it before posting it is at least something
that could be pointed to in replies, FAQs, docs etc.
On Mon, 6 Apr 2020 at 11:01, Ted Park wrote:
> Hi,
>
> I am experiencing a no-warning, system level, dead Macintosh II bitmap
> logo, sad Finder face icon type HARD CRASH every time I run a ffplay
> command.
> The exact command line is the following:
>
> % ffplay -f lavfi -i "anoisesrc[a1];sine,[
On Tue, 10 Mar 2020 at 00:47, arthur brogard via ffmpeg-user <
ffmpeg-user@ffmpeg.org> wrote:
> How do I get to look at this complete conversation, this thread?
http://ffmpeg.org/pipermail/ffmpeg-user/2020-March/thread.html
Linked as 'ffmpeg-user Archives' from the URL listed
in every email foot
On Mon, 9 Mar 2020 at 22:23, Mark Filipak <
markfilipak.windows+ffm...@gmail.com> wrote:
> First, what does 'FOSS' mean?
It stands for Free and open source software.
> Daisies? Daisies? We don't want daisies! I don't need no stinking
> daisies!
How about a nice game of chess? Or these badges?
> Certainly the idea of examining the source to figure out how it works is
pretty absurd.
While my suggestion was facile, for
the edification of those who enjoy
cliché FOSS responses, I would point
out:
- analysis of thousands of commands is
hardly a trivial task
- it would provide a thorough und
On Mon, 9 Mar 2020 at 21:20, Mark Filipak <
markfilipak.windows+ffm...@gmail.com> wrote:
>> Do you have a budget?
> Sure.
Assuming this isn't a mathematician's answer, you may
wish to disclose your budget if you want people to do
private work for you. With that information they
can decide if they
On Mon, 9 Mar 2020 at 20:50, Mark Filipak <
markfilipak.windows+ffm...@gmail.com> wrote:
> It appears to me that ffmpeg commands have the following structure:
> *snip*
This will probably complete someone else's FOSS bingo card, but if
you are intent on putting in many hours of work to figure out
as opposed to anywhere else.
Cheers,
Rob
On Mon, 9 Mar 2020 at 16:45, Mark Filipak <
markfilipak.windows+ffm...@gmail.com> wrote:
> On 03/09/2020 12:34 PM, Rob Hallam wrote:
> > On Mon, 9 Mar 2020 at 16:20, Mark Filipak <
> > markfilipak.windows+ffm...@gmail.com&g
On Mon, 9 Mar 2020 at 16:20, Mark Filipak <
markfilipak.windows+ffm...@gmail.com> wrote:
> I want hundreds of command lines that work.
Have you considered looking at accepted answers on QA sites?
SU has > 4500 questions: https://superuser.com/questions/tagged/ffmpeg
SO has nearly 19k: https://s
On 8 August 2018 at 14:00, Morten W. Petersen wrote:
> Python has bindings for GUI widgets for example.
There also exists python bindings for ffmpeg, if you haven't found
them already.
For example:
https://github.com/kkroening/ffmpeg-python
Combining the two should get you somewhere quickly.
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