Am Fr., 24. Apr. 2020 um 09:22 Uhr schrieb Jens-Peter Sjöberg
:
> I have tried to find out a way to change the FPS in the metadata for clp
> with a certain FPS.
For real containers, such "metadata" does not exist / can rarely
be changed.
> Is there a way to do this on the same clip without
Am Fr., 24. Apr. 2020 um 10:01 Uhr schrieb Tajti Krisztian
:
> I have an issue where I start merging video and audio
> and my mac will render it for a long time and also the file size
> does not match the sum of the video and audio.
> I tried it on a pc and it does it in one second (without
> Am 21.04.2020 um 16:10 schrieb Cemal Direk :
>
> "ffmpeg -i video.mp4 -filter:v "fade=t=in:color=white:st=0.5:d=1" -filter:a
> "afade=in:st=0:d=1, afade=out:st=44:d=1" -c:v libx264 -c:a aac output.mp4"
Complete, uncut console output missing.
Carl Eugen
Am Mo., 20. Apr. 2020 um 13:45 Uhr schrieb Edward Park :
>
> > you've probably already seen carl eugen's post referring to ticket 8615.
> > looks like this may be a regression ... to answer your question, though,
> > i'm on a 2018 mini (i7); gpu is "Intel UHD Graphics 630", which should
> >
Am Mo., 20. Apr. 2020 um 19:32 Uhr schrieb Edward Park :
>
> > Use the output option -r or the fps filter to control the frequency of the
> > image grabs.
> > They will show different behaviour wrt the beginning of the grab cycle.
>
> The identical frames at the start is surprising for me, why
> Am 20.04.2020 um 18:16 schrieb adam smith via ffmpeg-user
> :
>
>
>> On 20 Apr 2020, at 16:03, Carl Eugen Hoyos wrote:
>> Use -vsync 0 and remove -r.
>
> Thanks for your help Carl.
> Adding the -vsync 0 and removing -r did resolve the issue duplicate ima
> Am 20.04.2020 um 16:28 schrieb adam smith via ffmpeg-user
> :
>
> Any ideas how to stop the duplicate being created?
Use -vsync 0 and remove -r.
Carl Eugen
___
ffmpeg-user mailing list
ffmpeg-user@ffmpeg.org
Am So., 19. Apr. 2020 um 18:46 Uhr schrieb Mark Filipak
:
>
> On 04/19/2020 12:31 PM, Carl Eugen Hoyos wrote:
> > Am So., 19. Apr. 2020 um 18:11 Uhr schrieb pdr0 :
> >
> >> In his specific situation, he has a single combed frame. What he
> >> chooses for
Am So., 19. Apr. 2020 um 18:11 Uhr schrieb pdr0 :
> In his specific situation, he has a single combed frame. What he chooses for
> yadif (or any deinterlacer) results in a different result - both wrong - for
> his case.
> If the selects "top" he gets an "A" duplicate frame. If he selects
>
Am So., 19. Apr. 2020 um 16:31 Uhr schrieb pdr0 :
>
> Carl Eugen Hoyos-2 wrote
> > Am 19.04.2020 um 08:08 schrieb pdr0
> >> Other types of typical single rate deinterlacing (such as yadif) will
> >> force you to choose the top or bottom field
> >
> &
> Am 18.04.2020 um 22:06 schrieb Mark Filipak
> :
>
> [...]
To anyone ever reading this thread:
I don’t know if the things written here are true for analog video, I don’t know
about other software but a lot that was written here is certainly wrong when
thinking of FFmpeg, do not use it as
> Am 19.04.2020 um 08:08 schrieb pdr0 :
>
> Other types of typical single rate deinterlacing (such as yadif) will force
> you to choose the top or bottom field
As already explained: This is not true.
Carl Eugen
___
ffmpeg-user mailing list
Am So., 19. Apr. 2020 um 04:36 Uhr schrieb Mark Filipak
:
> Your advice is very appreciated.
Do not compress anything that you want other people to read.
Carl Eugen
___
ffmpeg-user mailing list
ffmpeg-user@ffmpeg.org
Am So., 19. Apr. 2020 um 04:12 Uhr schrieb Mark Filipak
:
>
> On 04/18/2020 10:02 PM, Carl Eugen Hoyos wrote:
> > Am So., 19. Apr. 2020 um 03:43 Uhr schrieb Mark Filipak
> > :
> >
> >> My experience is that regarding "decombing" frames 2 7 12 17 ...,
&g
Am So., 19. Apr. 2020 um 03:43 Uhr schrieb Mark Filipak
:
> My experience is that regarding "decombing" frames 2 7 12 17 ...,
> 'pp=linblenddeint' (whatever it is) does a better job than 'yadif'.
(Funny that while I always strongly disagreed some people also
said this when yadif was new - this
Am Sa., 18. Apr. 2020 um 21:32 Uhr schrieb Mark Filipak
:
> Regarding deinterlace, Carl Eugen, I'm not trying to deinterlace.
pp=linblenddeint is a (very simple) deinterlacer, once upon a
time it was the preferred deinterlacer for some users, possibly
because of its low performance requirements.
Am Sa., 18. Apr. 2020 um 22:55 Uhr schrieb Mark Filipak
:
>
> On 04/18/2020 06:30 AM, Carl Eugen Hoyos wrote:
> > Am Sa., 18. Apr. 2020 um 02:07 Uhr schrieb Mark Filipak
> > :
> >>
> >> Never mind. MPV was able to tell me that the pcm_bluray is big endian.
&g
Am Sa., 18. Apr. 2020 um 19:27 Uhr schrieb pdr0 :
>
> Carl Eugen Hoyos-2 wrote
> > Am Sa., 18. Apr. 2020 um 00:53 Uhr schrieb Mark Filipak
> >
>
> > markfilipak.windows+ffmpeg@
>
> > :
> >
> >> I'm not using the 46 telecine anymore
Am Sa., 18. Apr. 2020 um 00:53 Uhr schrieb Mark Filipak
:
> I'm not using the 46 telecine anymore because you introduced me to
> 'pp=linblenddeint'
> -- thanks again! -- which allowed me to decomb via the 55 telecine.
Why do you think that pp is a better de-interlacer than yadif?
(On hardware
Am Sa., 18. Apr. 2020 um 18:15 Uhr schrieb Carl Zwanzig :
>
> On 4/18/2020 3:30 AM, Carl Eugen Hoyos wrote:
> > Am Sa., 18. Apr. 2020 um 02:07 Uhr schrieb Mark Filipak
> > :
> >>
> >> Never mind. MPV was able to tell me that the pcm_bluray is big endian.
&g
Am Fr., 17. Apr. 2020 um 14:37 Uhr schrieb su.00048--- via ffmpeg-user
:
>
>
> i have ffmpeg building successfully on osx (10.14.6; xcode 11.3.1),
> and am using the generated libraries in a personal video project i'm
> working on. now i'm ready to start thinking about implementing hardware
>
Am Sa., 18. Apr. 2020 um 02:07 Uhr schrieb Mark Filipak
:
>
> Never mind. MPV was able to tell me that the pcm_bluray is big endian.
While this is technically true, note that it has absolutely no relevance
for users of FFmpeg (including library users).
Carl Eugen
Am Sa., 18. Apr. 2020 um 01:42 Uhr schrieb Mark Filipak
:
> I know that PCM was never used for DVDs
DVDs with PCM audio exist.
Carl Eugen
___
ffmpeg-user mailing list
ffmpeg-user@ffmpeg.org
https://ffmpeg.org/mailman/listinfo/ffmpeg-user
To
Am Fr., 17. Apr. 2020 um 00:02 Uhr schrieb MediaMouth :
>
> > On Apr 16, 2020, at 2:26 PM, Carl Eugen Hoyos wrote:
> >
> >> The following worked w/o errors (though it didn't improve the speed)
> >>ffmpeg -y -i SourcePath -s 1280*720 -b:v 9
Am Do., 16. Apr. 2020 um 05:58 Uhr schrieb Ted Park :
> Someone else recently uploaded an iPhone recording that qtfaststart
> completely fubar'ed
Could you point me to that file, I must have missed it.
Thank you, Carl Eugen
___
ffmpeg-user mailing
Am Do., 16. Apr. 2020 um 14:59 Uhr schrieb John Riselvato
:
> So my question is, is it possible to add this book to the "Books about
> FFmpeg" found here: https://ffmpeg.org/documentation.html
There is a git repository:
https://git.ffmpeg.org/gitweb/ffmpeg-web.git
Send your patch - made with
Am Mi., 15. Apr. 2020 um 03:46 Uhr schrieb Michael Glenn Williams
:
> Thank you for responding. Regarding -volume, i'm just putting 30
> without the %.
> Regarding -top and -left, my version of ffplay (the latest MAC OSX
> download from the website) Doesn't seem to know these options.
(Command
Am Do., 16. Apr. 2020 um 19:50 Uhr schrieb MediaMouth :
> The following worked w/o errors (though it didn't improve the speed)
> ffmpeg -y -i SourcePath -s 1280*720 -b:v 9000k -c:v h264_omx DestPath
>
> The following generated the "deprecated pixel format used" error.
No.
("deprecated
Am Do., 16. Apr. 2020 um 18:25 Uhr schrieb Ted Park :
> > i'd like to know how to configure rtsp as a input, beacause all the
>> time it stops after some aleatory time, how to make it stable ?
> > i'm using these options:
> >
> >"-rtsp_transport", "tcp",
> >"-i", rtspUrl,
> >"-r",
Am Mi., 15. Apr. 2020 um 20:14 Uhr schrieb cowlol :
> ./ffmpeg -noautorotate -i input1.mp4 -movflags +faststart
> -vcodec h264 -crf 18 -preset:v veryfast output.mp4
If you want a smaller filesize you have to change the crf value.
If you chose a slower preset, you get either better quality (and
Am Di., 14. Apr. 2020 um 06:30 Uhr schrieb Benjamin Hill
:
>
> tl/dr: Is there a "best" ffmpeg "try every technique you got to transcode a
> file to a consistent format, ignoring errors, and use the best method, I
> believe in you, thanks!"
>
> long version:
>
> I've got some VOB files from old
Am Mo., 13. Apr. 2020 um 15:29 Uhr schrieb Ramana :
> I don't know, it is extracting the more and more number of frames, I have
> scheduled the live input feed as 1 hour video for 24x7. currently I am using
> the ffmpeg -i input.ts -vf fps=1 output_%d.jpg command to extract the
> frames for
Am Mo., 13. Apr. 2020 um 15:29 Uhr schrieb Ramana :
> ffmpeg -i INPUT.ts -vf "select=between(mod(n\, 25)\, 0\, 0), setpts=N/24/TB"
> output-%04d.jpg
>
> The above command is extracting the zero-th frame on every second total
> number of extracted frames are 3600. But, it is not working on live
Am Mo., 13. Apr. 2020 um 09:59 Uhr schrieb Vincent Torri
:
> advantage : cross compiling on linux is a lot faster than compiling with MSYS2
Which is the reason I use wsl (which also allows cross-compiling in case
native compilation isn't fast enough for you).
Carl Eugen
Am Mo., 13. Apr. 2020 um 15:12 Uhr schrieb Ramana :
> I am trying yo select select the very starting frame of every second on a
> live input video. Input is a .ts file. I have a command to select the 0th
> frame of every second on a non-live video.
>
> ffmpeg -i INPUT.ts -vf
> Am 13.04.2020 um 02:24 schrieb Mark Filipak
> :
>
> [Note 1] I'm pretty sure that a git project requires continuous access to the
> Internet.
No, you can always download current FFmpeg and move it wherever you need it:
http://ffmpeg.org/releases/ffmpeg-snapshot-git.tar.bz2
Carl Eugen
Am Mo., 13. Apr. 2020 um 02:10 Uhr schrieb Reindl Harald
:
>
>
>
> Am 13.04.20 um 01:44 schrieb Carl Eugen Hoyos:
> > Am Mo., 13. Apr. 2020 um 01:43 Uhr schrieb Carl Zwanzig :
> >
> >>> (Why on earth do you need --static for a Windows build?)
> >>
>
Am Mo., 13. Apr. 2020 um 02:00 Uhr schrieb Mark Filipak
:
> I really don't understand why you insist that I justify everything.
I am just a curious developer.
Carl Eugen
___
ffmpeg-user mailing list
ffmpeg-user@ffmpeg.org
Am Mo., 13. Apr. 2020 um 01:51 Uhr schrieb Mark Filipak
:
>
> On 04/12/2020 07:43 PM, Carl Eugen Hoyos wrote:
> > Am Mo., 13. Apr. 2020 um 01:33 Uhr schrieb Mark Filipak
> > :
> >>
> >> On 04/12/2020 07:24 PM, Carl Eugen Hoyos wrote:
> >>> Am Mo.,
Am Mo., 13. Apr. 2020 um 01:46 Uhr schrieb Mark Filipak
:
> Sorry, but I will not connect Windows to the Internet. It's not safe. So, if
> building on a Windows
> box implies doing a 'git sync' implies connecting Windows to the Internet,
> it's a non-starter.
Then you will cross-compile from
Am Mo., 13. Apr. 2020 um 01:43 Uhr schrieb Carl Zwanzig :
> > (Why on earth do you need --static for a Windows build?)
>
> Because I want one, that's why (and I've been around long enough to
> understand the tradeoffs). Why must you question it?
Then allow me to rephrase because I apparently
Am Mo., 13. Apr. 2020 um 01:33 Uhr schrieb Mark Filipak
:
>
> On 04/12/2020 07:24 PM, Carl Eugen Hoyos wrote:
> > Am Mo., 13. Apr. 2020 um 01:18 Uhr schrieb Mark Filipak
> > :
> >
> >> I'd like to give the path described by the ffmpeg docs a try. If that
> >
Am Mo., 13. Apr. 2020 um 01:20 Uhr schrieb Carl Zwanzig :
>
> On 4/12/2020 3:57 PM, Mark Filipak wrote:
> > [Note 1] I'm pretty sure that a git project requires continuous access to
> > the Internet. My Internet access is solely via a VBox Linux guest, so it
> > seems reasonable that ffmpeg must
Am Mo., 13. Apr. 2020 um 01:18 Uhr schrieb Mark Filipak
:
> I'd like to give the path described by the ffmpeg docs a try. If that
> doesn't work, then I'll try your path. Okay?
Obviously not.
But otoh: What else should I have expected?
Carl Eugen
___
Am Mo., 13. Apr. 2020 um 01:05 Uhr schrieb Carl Eugen Hoyos
:
> For gcc, there is an Ubuntu incantation to install the Windows toolchain.
$ sudo apt-get install gcc-mingw-w64
Carl Eugen
___
ffmpeg-user mailing list
ffmpeg-user@ffmpeg.org
ht
Am Mo., 13. Apr. 2020 um 00:57 Uhr schrieb Mark Filipak
:
> Following instructions here:
> https://github.com/rdp/ffmpeg-windows-build-helpers
We do not support external scripts on this mailing list.
If you want to compile for Windows, install wsl (wsl2 does not
work here, wsl works fine).
Then
Am So., 12. Apr. 2020 um 15:19 Uhr schrieb K J :
> I really appreciate your help :-)
Then why can't you provide the missing information?
Please find out what top-posting means and avoid it here.
Carl Eugen
___
ffmpeg-user mailing list
Am So., 12. Apr. 2020 um 11:54 Uhr schrieb Matthew Reus
:
>
> here i have attach the 2 of the ffmpeg script
>
> 1. This code gave me error
> * ffmpeg -f decklink -hwaccel_device 1 -hwaccel nvdec
> -hwaccel_output_format cuda -format_code pal -i 'DeckLink Quad (4)' -r 25
> -vf
Am So., 12. Apr. 2020 um 03:58 Uhr schrieb Matthew Reus
:
>
> How can we take decklink input from QUAD 2 capture card and use the gpu
> for transcoding at same time , could anyone provide the example or tutorial
> steps for it , as i have compile ffmpeg with gpu and decklink , but i could
> not
Am Sa., 11. Apr. 2020 um 20:37 Uhr schrieb Mark Filipak
:
>
> On 04/11/2020 10:58 AM, Carl Eugen Hoyos wrote:
> > Am Sa., 11. Apr. 2020 um 15:05 Uhr schrieb Mark Filipak
> > :
> >>
> >> On 04/11/2020 08:05 AM, Carl Eugen Hoyos wrote:
> >>&g
Am Sa., 11. Apr. 2020 um 17:09 Uhr schrieb K J :
> I have some movies and they are nice encodes so I had a look in MediaInfo
> under encoding settings to see what settings was used as I want to do
> some movies I have and use the exact same settings.
>
> Encoding settings:
>
> cabac=1 / ref=4 /
Am Sa., 11. Apr. 2020 um 15:05 Uhr schrieb Mark Filipak
:
>
> On 04/11/2020 08:05 AM, Carl Eugen Hoyos wrote:
> >
> > Mark:
> > Since dbc5c0c1, you can use the following filter chain:
> > fps=24000/1001,setparams=field_mode=prog,telecine=pattern=5,yadif=deint=in
Am Di., 31. März 2020 um 19:53 Uhr schrieb Mark Filipak
:
Mark:
Since dbc5c0c1, you can use the following filter chain:
fps=24000/1001,setparams=field_mode=prog,telecine=pattern=5,yadif=deint=interlaced
For everybody else: All developers seem to agree that this will not
help as expected,
please
Am Do., 9. Apr. 2020 um 00:47 Uhr schrieb Ben Edwards :
> $ ffmpeg -loglevel warning -i input.mp4
Please increase the loglevel and provide this command
line together with the complete, uncut console output,
not an excerpt, if you want help here.
Consider providing a sample, Carl Eugen
Am Di., 7. Apr. 2020 um 09:23 Uhr schrieb Carl Zwanzig :
>
> The ffmpeg project only provides the builds on it's web
> own site.
The FFmpeg project does not provide any builds, only
source code.
> ffmpeg is another example where using the distro's
> package is probably not a good idea.
I
Am Mo., 6. Apr. 2020 um 17:01 Uhr schrieb Ian Pilcher :
> Is it possible to do $SUBJECT (with ffmpeg or any other software)?
https://ffmpeg.org/ffmpeg-filters.html#surround
Carl Eugen
___
ffmpeg-user mailing list
ffmpeg-user@ffmpeg.org
Am Mo., 6. Apr. 2020 um 12:01 Uhr schrieb Ted Park :
> ffplay -f lavfi -i "anoisesrc[a1];sine,[a1]amix"
> ffplay version 4.2.2 Copyright (c) 2003-2019 the FFmpeg developers
Apart from "is the issue reproducible with current FFmpeg git head?"
The problem with ffplay-specific issues is that ffplay
Am So., 5. Apr. 2020 um 10:19 Uhr schrieb Mark Filipak
:
> Any 24fps video displayed on a 60Hz TV must be telecined somehow.
This is only true for (old) CRT NTSC screens.
Note that there is another issue with your argumentation: You are assuming
that current screens are bound to some general
Am Fr., 3. Apr. 2020 um 00:00 Uhr schrieb Ted Park :
> > The image2 demuxer (that is used for dpx files) has never
> > heard of images with a framerate and therefore doesn't
> > try to read it.
> > Afaict, the dpx decoder uses the framerates.
> I see… That would explain the weird 24 tbr 25 tbn 24
Am Mi., 1. Apr. 2020 um 04:40 Uhr schrieb Ted Park :
> >> can you explain what causes misdetected
> >> frame rates?
> >
> > The dpx files store a frame rate that is ignored by the demuxer
> > (and therefore unused for the default output frame rate) but used
> > to calculate timestamps on
Am Do., 2. Apr. 2020 um 19:47 Uhr schrieb Nomis101 :
>
> I would like to convert an audio stream of a movie into AC4 for a Samsung TV.
Do you have a sample file that plays with your TV?
We don't have many so far.
> Does FFmpeg support the AC4 format?
No, not yet.
Carl Eugen
Am Fr., 20. Sept. 2019 um 08:06 Uhr schrieb CGar :
>
> When extracting EIA-608 captions from a DVD to an ASS file I am
> unsure how to specify the style. I've seen snippets online about a
> force_style option but it seems to be about hardcoding them or
> specifying a subtitle file as input. Since
Am Mi., 1. Apr. 2020 um 01:18 Uhr schrieb Ulf Zibis :
>
>
> Am 01.04.20 um 00:47 schrieb Carl Eugen Hoyos:
> > Am Mi., 1. Apr. 2020 um 00:45 Uhr schrieb Ulf Zibis :
> >
> >> Am 31.03.20 um 01:02 schrieb Carl Eugen Hoyos:
> >>> But the relevant test -
Am Mi., 1. Apr. 2020 um 00:45 Uhr schrieb Ulf Zibis :
> Am 31.03.20 um 01:02 schrieb Carl Eugen Hoyos:
> > But the relevant test - imo - is not to change the file that does not play
> > but instead change the playing file and find out which change breaks
> > playback.
>
Am Di., 31. März 2020 um 21:21 Uhr schrieb Mark Filipak
:
>
> On 03/31/2020 03:16 PM, Carl Eugen Hoyos wrote:
> > Am Di., 31. März 2020 um 19:53 Uhr schrieb Mark Filipak
> > :
> >
> >> (I think this is a game changer regarding telecine.)
> >
>
Am Di., 31. März 2020 um 19:53 Uhr schrieb Mark Filipak
:
> (I think this is a game changer regarding telecine.)
No.
Carl Eugen
___
ffmpeg-user mailing list
ffmpeg-user@ffmpeg.org
https://ffmpeg.org/mailman/listinfo/ffmpeg-user
To unsubscribe, visit
Am Di., 31. März 2020 um 02:30 Uhr schrieb Ulf Zibis :
> As you can see, I need to increase the ftyp box by 4 bytes to insert CEAP
Didn't you already verify that this is not the culprit?
Carl Eugen
___
ffmpeg-user mailing list
ffmpeg-user@ffmpeg.org
Am So., 29. März 2020 um 12:59 Uhr schrieb Mark Filipak
:
> With a soft-telecined, 24/1.001 FPS source, and with a telecine pattern of
> (i.e., 8 fields
> to 20 fields), the output MKV should be 60/1.001 FPS. But it's not 60/1.001
> FPS.
>
> It's 75/1.001 FPS.
Use the following
> Am 31.03.2020 um 08:19 schrieb Matthew Yang :
>
>
> vsync drop worked well for me.
> can you explain what causes misdetected
> frame rates?
The dpx files store a frame rate that is ignored by the demuxer (and therefore
unused for the default output frame rate) but used to calculate
Am Mo., 16. März 2020 um 01:43 Uhr schrieb Ulf Zibis :
>
>
> Am 14.03.20 um 21:08 schrieb Carl Eugen Hoyos:
> > Am Sa., 14. März 2020 um 20:39 Uhr schrieb Ted Park
> > :
> >
> >>>>>> Did you already test the following?
> >>>&g
Am So., 29. März 2020 um 16:10 Uhr schrieb Mark Filipak
:
> Why do you say that if I want to increase the
> frame rate I should *not* telecine?
The question seems strange to me:
telecine is a technology that was once needed
for displays that do not exist anymore, it has no
inherent advantages
Am So., 29. März 2020 um 14:51 Uhr schrieb Mark Filipak
:
> > If you have progressive content and want to increase the frame rate,
> > do not use a telecine filter.
> The source is not telecined. The source is p24. I'm doing the telecining.
Then I cannot help you, see above.
That being said,
Am So., 29. März 2020 um 12:59 Uhr schrieb Mark Filipak
:
> >ffmpeg -i H:\VIDEO_TS\VTS_01_1.VOB -vf "telecine=pattern=" -deinterlace
> -y TEST.MKV
Warning 1
The deinterlace option is deprecated, use a filter of your choice instead,
not sure why no warning is shown.
Warning 2
Above may
Am Fr., 27. März 2020 um 18:26 Uhr schrieb Carl Eugen Hoyos
:
>
> Am Fr., 27. März 2020 um 05:33 Uhr schrieb Colin Bitterfield
> :
>
> > Using this command brings in a 12GB DVVIDEO files
> >
> > ffmpeg -hwaccel videotoolbox -hide_banner -benchmark_all -stats -logle
Am Fr., 27. März 2020 um 17:58 Uhr schrieb Dan Smith via ffmpeg-user
:
> 1) I'd really like a video in the original file format when I'm done
> (m4v/mp4), not a mov file.
ipad files are mostly mov files, mp4 files are a little different.
("m4v" is something entirely different in FFmpeg)
> I
Am Fr., 27. März 2020 um 05:33 Uhr schrieb Colin Bitterfield
:
> Using this command brings in a 12GB DVVIDEO files
>
> ffmpeg -hwaccel videotoolbox -hide_banner -benchmark_all -stats -loglevel
> error -f avfoundation -capture_raw_data true -pix_fmt 0rgb -i DV-VCR -t 600
> -q 0 -c:v copy -c:a
Am Fr., 27. März 2020 um 17:58 Uhr schrieb Dan Smith via ffmpeg-user
:
> To restate my goal clearly: I want to process some m4v files,
> removing an unwanted "cover art" image appearing as mjpeg
> streams.
Just to clarify in case it is necessary:
FFmpeg never "removes" anything from a file, when
Am Fr., 27. März 2020 um 13:00 Uhr schrieb Resh via ffmpeg-user
:
> I noticed an "error" on ffmpeg.
> When I use it to cut movies, or to extract parts of a movie, the video of the
> cut
> piece reproduces the first 10 seconds only audio, after which part audio and
> video synchronized. I did
Am Do., 26. März 2020 um 12:28 Uhr schrieb Du Dengke :
> I have a 4k video, resolution: 4320x2880, as a result form EDSR-pytorch
> I want to use motion interpolate it to 60fps, so command like this:
> ffmpeg -i test.mp4 -filter "minterpolate=fps=60" output.mp4
>
Am Do., 26. März 2020 um 19:34 Uhr schrieb Michael Koch
:
> I have a suggestion for improvement for the drawtext filter.
> If the text is read from a file, it must be in UTF-8 format. In Windows,
> many text editors (including Notepad) insert a 3-byte "Byte order mark"
> at the beginning of the
Am Di., 24. März 2020 um 21:50 Uhr schrieb Tarjei Bærland
:
> frame= 578 fps= 30 q=-1.0 Lsize=1207kB time=00:00:19.25 bitrate=
> 513.6kbits/s dup=157 drop=9 speed=1.01x
mkv output may avoid the duplicated frames and lead to smaller files.
(FFmpeg's mov / mp4 muxer does not support variable
Am Di., 24. März 2020 um 16:07 Uhr schrieb Peter Alderson
:
> On iPhones running iOS 11, if a video is pre-recorded and uploaded I get the
> following
> errors:- ( ie, the video is recoded on the iPhone and then uploaded as an
> attachment ).
>
> $ ./ffmpeg -i .mov -vcodec h264 -acodec mp4
Am Mo., 23. März 2020 um 19:06 Uhr schrieb Joshua Grauman :
> I have a GeForce GT 1030/PCIe/SSE2 that supports NVENC and I have ffmpeg
> compiled with nvenc support.
>
> ./ffmpeg -encoders 2>/dev/null | grep nvenc
> V. h264_nvenc NVIDIA NVENC H.264 encoder (codec h264)
> V.
Am So., 22. März 2020 um 11:52 Uhr schrieb qw :
> I want to set subtitles-filter's size and position, and don't use default
> setting. How to set those parameters myself?
See http://ffmpeg.org/ffmpeg-filters.html#subtitles-1 ...
> https://trac.ffmpeg.org/wiki/HowToBurnSubtitlesIntoVideo
...
Am Mi., 18. März 2020 um 02:51 Uhr schrieb Hans Carlson :
>
> On Wed, 18 Mar 2020, Carl Eugen Hoyos wrote:
>
> > Am Di., 17. März 2020 um 00:38 Uhr schrieb Hans Carlson :
> >>
> >> Can anyone explain to me why this displays only the yellow bar with
> >>
Am Di., 17. März 2020 um 00:38 Uhr schrieb Hans Carlson :
>
> Can anyone explain to me why this displays only the yellow bar with
> everything else black:
>
>ffplay -f lavfi -i 'smptehdbars=duration=5' -vf
> "colorhold=color=0xbcc906:similarity=0.25,chromakey=color=black:similarity=.2"
>
>
Am Di., 17. März 2020 um 22:04 Uhr schrieb Ted Park :
> > nothing in FFmpeg is (by itself) a videoconferencing software.
>
> Ah, right thank you, I couldn’t think of the word “videoconferencing,” was on
> the tip of my tongue (or fingers).
I found it in the English Wikipedia googling for H323.
Am Di., 17. März 2020 um 16:20 Uhr schrieb Simon Brown
:
>
> >
> >
> > Hi,
> >
> > > Is it possible for ffmpeg to produce a stream conforming to H.323? As I
> > > understand it H.323 supports H.264 video and G.711 or OPUS audio. I have
> > > an H.264 video stream, so would need to re-encode the
Am Di., 17. März 2020 um 16:04 Uhr schrieb penguin flying
:
>
> using this cmd
> ffmpeg -i in.mp4 -copyts -f image2 -vframes 5 -y %03d.jpg
> will decode one frame and then encode it to one jpg at the same time,
> AND the picture will be encoded in default quality.
>
> BUT when I want to improve
Am Sa., 14. März 2020 um 21:06 Uhr schrieb Carl Eugen Hoyos
:
> The problem gets worse by the fact that in general, neither ffmpeg nor x264
> can
> detect that you are using different settings for the two passes (x264
> sometimes
> crashes if the passes do not fit, I
Am Sa., 14. März 2020 um 22:53 Uhr schrieb Jeff Langston :
> Right -an in the first pass is referenced in the docs "On pass 1, you may
> just deactivate audio and set output to null"
Let me repeat:
The problem is not only that you get a completely broken encode (wrong
frames get higher bitrates)
Am Sa., 14. März 2020 um 20:39 Uhr schrieb Ted Park :
> Did you already test the following?
> $ ffmpeg -i MVI_1324.MOV -acodec copy -vcodec copy out.mov
> >>> Then the codec time base remains
> >> Of course.
> >>
> >> The question is if the file is still playable after remuxing.
> > It
Am Sa., 14. März 2020 um 20:09 Uhr schrieb Jeff Langston :
>
> Hi,
>
> Here's the input commands boiled down to the simplest reproducible
> versions.
>
> Here's links to the input files https://s3.amazonaws.com/Jlangston/bunny.mp4
> https://s3.amazonaws.com/Jlangston/track1.m4a
> Trying either
Am Sa., 14. März 2020 um 16:26 Uhr schrieb Ulf Zibis :
>
>
> Am 14.03.20 um 15:34 schrieb Carl Eugen Hoyos:
> > Am Sa., 14. März 2020 um 15:09 Uhr schrieb Ulf Zibis :
> >> Am 14.03.20 um 11:51 schrieb Carl Eugen Hoyos:
> >>> Did you already test the follo
Am Sa., 14. März 2020 um 15:41 Uhr schrieb Ted Park :
> Did the OP have the chance to upload some working camera-generated preview
> files?
I didn't ask for one because I don't have the necessary hardware to test...
Carl Eugen
___
ffmpeg-user mailing
Am Fr., 13. März 2020 um 02:59 Uhr schrieb penguin flying
:
>
> i want the pts of the output file begins with 0.
>
> using this cmd:
> ffmpeg -i 0.flv -c:v libx264 -vf setpts=PTS-STARTPTS -acodec libfdk_aac -f
> mp4 -y out.mp4
Complete, uncut console output missing, try -movflags
Am Sa., 14. März 2020 um 15:09 Uhr schrieb Ulf Zibis :
>
> Am 14.03.20 um 11:51 schrieb Carl Eugen Hoyos:
> >
> > Did you already test the following?
> > $ ffmpeg -i MVI_1324.MOV -acodec copy -vcodec copy out.mov
>
> Then the codec time base remains
Of course
Am Fr., 13. März 2020 um 12:48 Uhr schrieb Ulf Zibis :
> in the input file I have:
> 60k tbc
> in the output file I have:
> 59.94 tbc
>
> How can I set this setting to 59.94 for the output?
Not sure but the "-vcodec copy" test should answer
how important it is.
Carl Eugen
Am Sa., 14. März 2020 um 02:14 Uhr schrieb :
> I download the Kodi project from GitHub and follow the steps stated in
> https://github.com/xbmc/xbmc/blob/master/docs/README.Windows.md,
> I want to build kodi to uwp arm 32bit program, so in step4 Set up the build
> environment, I change directory
Am Sa., 14. März 2020 um 06:04 Uhr schrieb Jeff Langston :
> I'm trying to sort out an issue I've run into with ffmpeg on the cli and
> was wondering if anyone might be able to help. I am trying to leverage 2
> pass encoding as well as inputting additional audio tracks to generate
> multiple
401 - 500 of 3830 matches
Mail list logo
