I'd like to see a dvdsub, as a jpg for example, both before and after scaling
the video. Is there a way?
Thanks--Mark.
___
ffmpeg-user mailing list
ffmpeg-user@ffmpeg.org
https://ffmpeg.org/mailman/listinfo/ffmpeg-user
To unsubscribe, visit link above
Oh, I have another issue regarding dvdsub.
Preface: There is a subtitle palette of 16 bytes.
Question: What is the significance of each of the 16 bytes?
Thanks--Mark.
___
ffmpeg-user mailing list
ffmpeg-user@ffmpeg.org
https://ffmpeg.org/mailman/listi
Preface: I turn smpte170m-in-720x480-as-H.262-in-vob, into
BT709-in-1920x1080-as-x264-in-mp4.
Question: When I up-scale video to 1920x1080, are the dvdsubs also up-scaled?
Rationale: I'd like to know a way to see a dvdsub, as a jpg for example, both before and after
scaling the video.
Ration
Hi,
I regularly cut videos using ffmpeg, where I have two inputs: One
camera recording FHD@50 and one screen recording recording some format
slightly smaller than FHD and with a variable frame rate, averaging to
something between 20 and 25 fps usually.
I then take a black FHD canvas at 50 fps, ov
On Tue, Jul 2, 2024 at 6:44 PM Sachin Bhat wrote:
> I have combined the select filters using
> select='eq(pict_type\,I)*not(mod(n\,300))', however, I receive the same
> delay. I am wondering if the delay is caused by ffmpeg waiting for the
> first keyframe after the seek point to start outputting
I have combined the select filters using
select='eq(pict_type\,I)*not(mod(n\,300))', however, I receive the same
delay. I am wondering if the delay is caused by ffmpeg waiting for the
first keyframe after the seek point to start outputting frames.
___
ffm
On Tue, Jul 2, 2024 at 5:21 PM Sachin Bhat wrote:
> Hi,
>
> I have an input ts file that is at 30 fps, and a GOP of 10. I am trying to
> display keyframes at a specific time interval by sending a keyframe plus
> duplicates to a HW decoder until the next desired keyframe appears. .I am
> using dup
Hi,
I have an input ts file that is at 30 fps, and a GOP of 10. I am trying to
display keyframes at a specific time interval by sending a keyframe plus
duplicates to a HW decoder until the next desired keyframe appears. .I am
using duplication because the HW decoder does not handle very low
framer
Hi,
I've got a question about the chroma sample location in h.265 (HEVC)
video using ffmpeg with libx265.
I'm transcoding a source file with ffmpeg. According to ffprobe, the
source file's chroma location is "left" (integer value 0). I assume
that information is taken from the VUI data of the H
On Mon, Jun 3, 2024 at 8:23 AM Lee Mitchell wrote:
> Hi.
>
> There are RGBA support qtrle video clips that have no problem with alpha
> support.
>
> I'd like to overlay a video on top of base one, and want to change the
> transparency while playing
> like
> "[1:v]alpha='if(between(t,0,10),(1-(t/1
Hi.
There are RGBA support qtrle video clips that have no problem with alpha
support.
I'd like to overlay a video on top of base one, and want to change the
transparency while playing
like
"[1:v]alpha='if(between(t,0,10),(1-(t/10)) *
alpha(X,Y),0)'[v0];[v0]overlay[out]"
What kind of filter sequen
Hi
I have a question about video Pro res with alpha channel.
In original video I have an person on transparent background. While
converting in to other video formats transparent background is turned to
black color.
Quicktime player shows video same way - background turned to black.
Is
But, in case of SVT-AV1, x264, and x265, we can see progress, but, idk why
not in case of vpx and aom-av1.
Anyways, fine enough.
On Mon, 8 Apr, 2024, 7:23 am Syehoon Kim, wrote:
> 2024년 4월 8일 (월) 오전 10:38, Aditya Dandavate 님이
> 작성:
> >
> > Even after waiting like 5 mins, I saw the same status a
Okay, thank you sir 🙏.
On Mon, 8 Apr, 2024, 7:23 am Syehoon Kim, wrote:
> 2024년 4월 8일 (월) 오전 10:38, Aditya Dandavate 님이
> 작성:
> >
> > Even after waiting like 5 mins, I saw the same status as the output of
> the
> > command, so what's the bug that is causing the first pass to not progress
> > ahe
2024년 4월 8일 (월) 오전 10:38, Aditya Dandavate 님이 작성:
>
> Even after waiting like 5 mins, I saw the same status as the output of the
> command, so what's the bug that is causing the first pass to not progress
> ahead ?
>
> On Sun, 7 Apr, 2024, 1:16 pm Aditya Dandavate,
> wrote:
>
> >
> > ffmpeg -i Map
Even after waiting like 5 mins, I saw the same status as the output of the
command, so what's the bug that is causing the first pass to not progress
ahead ?
On Sun, 7 Apr, 2024, 1:16 pm Aditya Dandavate,
wrote:
>
> ffmpeg -i Map11.mp4 -c:v libvpx -quality good -cpu-used 2 -pass 1 -b:v 12000k
>
ffmpeg -i Map11.mp4 -c:v libvpx -quality good -cpu-used 2 -pass 1 -b:v
12000k -fps_mode cfr -pix_fmt yuv420p -f matroska NULL
ffmpeg -i Map11.mp4 -c:v libvpx -quality good -cpu-used 2 -pass 2 -b:v
12000k -c:a copy -pix_fmt yuv420p pass1.mkv
pause
Output:
F:\New folder\PrBoomX>ffmpeg -i Map11.
Okay sir, I will follow your advice and your all instructions.
Thank you for guiding me.
On Tue, 2 Apr, 2024, 12:17 am Srikanth Kotagiri,
wrote:
> On Mon, Apr 1, 2024 at 11:15 AM Aditya Dandavate
> wrote:
> >
> > okay.
> >
> > thank you sir.
> >
> > But, I had one more problem coming frequentl
On Mon, Apr 1, 2024 at 11:15 AM Aditya Dandavate
wrote:
>
> okay.
>
> thank you sir.
>
> But, I had one more problem coming frequently while encoding in two-pass.
> The problem says `File Ended Prematurely`.
>
> What could be the reason for this frequent issue ?
>
> On Mon, 1 Apr, 2024, 11:42 pm L
okay.
thank you sir.
But, I had one more problem coming frequently while encoding in two-pass.
The problem says `File Ended Prematurely`.
What could be the reason for this frequent issue ?
On Mon, 1 Apr, 2024, 11:42 pm Laine Lee, wrote:
>
>
> > On Apr 1, 2024, at 9:35 AM, Aditya Dandavate <
>
> On Apr 1, 2024, at 9:35 AM, Aditya Dandavate
> wrote:
>
> But according to H.264 guide :
>
> Warning: When using option -an, you may eventually get a segfault or a
> broken file. If so, remove option -an and replace by -vsync cfr to the
> first pass.
>
> When I put `vsync cfr` then it says
> On Apr 1, 2024, at 5:40 AM, Aditya Dandavate
> wrote:
>
>
> So, I had a question :
>
>
> Can I use `-c:a` copy for audio codec instead of `-an`
Keeping “-an” for first pass, then using “-c:a copy” for second pass makes
sense to me, or am I completely wrong?
Yours ‘til I never am,
L. L
Okay, fine.
But according to H.264 guide :
Warning: When using option -an, you may eventually get a segfault or a
broken file. If so, remove option -an and replace by -vsync cfr to the
first pass.
When I put `vsync cfr` then it says that `-vsync` is deprecated, use
`-fps_mode`
What is all this
On Mon, Apr 1, 2024 at 3:40 AM Aditya Dandavate
wrote:
>
> and then
>
> ffmpeg -y -i Capture.mp4 -pix_fmt yuv420p -c:v libx264 -pass 1 -an
> -b:v 2600k -f mp4 NUL
>
> ffmpeg -y -i Capture.mp4 -pix_fmt yuv420p -c:v libx264 -pass 2 -an
> -b:v 2600k myVideo.mp4
>
>
> Source :
>
>
> https://video.st
In words of Gyan Dev Sir, a maintainer of FFMPEG,
"Two-pass is meant for when you have a fixed input and you wish to analyze
the file beforehand, so that the encode is optimized for the target bitrate
and other encoder parameters.
Your 1st command is discarding the capture. And so your 2nd comman
Am 31.03.24 um 18:15 schrieb Hervé ANSELME:
In other words, re-encoding with the x265 codec for the final video : can it
improve the final video quality, compared to the source video, when the source
video is encoded with x264?
how should a lossy codec restore information dropped by the los
Hervé ANSELME (12024-03-31):
> I have a question about re-encoding a source video having libx264 video codec.
>
> Is there any advantage(s) to re-encode with the libx265, which is supposed to
> give better result than libx264 ?
>
> In other words, re-encoding with the x265 codec for the final vi
On Sun, 31 Mar 2024 at 19:15, Hervé ANSELME <
hervea95-at-hotmail@ffmpeg.org> wrote:
> Hi all,
>
> I have a question about re-encoding a source video having libx264 video
> codec.
>
> Is there any advantage(s) to re-encode with the libx265, which is supposed
> to give better result than libx26
Hi all,
I have a question about re-encoding a source video having libx264 video codec.
Is there any advantage(s) to re-encode with the libx265, which is supposed to
give better result than libx264 ?
In other words, re-encoding with the x265 codec for the final video : can it
improve the final
Hi all,
I have a question about re-encoding a source video having libx264 video codec.
Is there any advantage(s) to re-encode with the libx265, which is supposed to
give better result than libx264 ?
In other words, re-encoding with the x265 codec for the final video : can it
improve the final
Am 28.12.2023 um 03:25 schrieb Carl Zwanzig:
On 12/27/2023 3:54 PM, Jim DeLaHunt wrote:
The documentation says, "x is the index of the internal variable
which will be used to save the seed/state."
(https://ffmpeg.org/ffmpeg-all.html#Expression-Evaluation). I don't
know what it means by "index
On 12/27/2023 3:54 PM, Jim DeLaHunt wrote:
The documentation says, "x is the index of the internal variable which will
be used to save the seed/state."
(https://ffmpeg.org/ffmpeg-all.html#Expression-Evaluation). I don't know
what it means by "index of the internal variable", and I don't know wh
Michael:
On 2023-12-27 15:20, Michael Koch wrote:
Am 27.12.2023 um 23:59 schrieb Jim DeLaHunt:
Michael:
On 2023-12-27 13:51, Michael Koch wrote:
...I'm using this command line to print four consecutive random
numbers:
...
I do not have an answer to your question about the behaviour of the
r
Am 27.12.2023 um 23:59 schrieb Jim DeLaHunt:
Michael:
On 2023-12-27 13:51, Michael Koch wrote:
...I'm using this command line to print four consecutive random numbers:
...
I do not have an answer to your question about the behaviour of the
random() function. However, I cannot reproduce your re
Michael:
On 2023-12-27 13:51, Michael Koch wrote:
...I'm using this command line to print four consecutive random numbers:
...
I do not have an answer to your question about the behaviour of the
random() function. However, I cannot reproduce your results on my
machine. I get an error complaini
Am 27.12.2023 um 23:04 schrieb Devin Heitmueller:
On Wed, Dec 27, 2023 at 4:51 PM Michael Koch
wrote:
Hi,
I'm using this command line to print four consecutive random numbers:
ffmpeg -loglevel repeat -f lavfi -i color=gray:size=1x1,format=gray -vf
geq=lum='st(0,0.123);print(random(0));print(r
On Wed, Dec 27, 2023 at 4:51 PM Michael Koch
wrote:
>
> Hi,
>
> I'm using this command line to print four consecutive random numbers:
>
> ffmpeg -loglevel repeat -f lavfi -i color=gray:size=1x1,format=gray -vf
> geq=lum='st(0,0.123);print(random(0));print(random(0));print(random(0));print(random(0
Hi,
I'm using this command line to print four consecutive random numbers:
ffmpeg -loglevel repeat -f lavfi -i color=gray:size=1x1,format=gray -vf
geq=lum='st(0,0.123);print(random(0));print(random(0));print(random(0));print(random(0));0'
-frames 1 -y out.png
The output is always the same fou
>>
>> >
>> With my 5 year old laptop (kaby lake based intel i7-8650U 1.9 GHz base,
>> low power quadcore), opus encoding with ffmpeg at highest quality
>> settings (-compression_level 10) has no problems encoding stereo input
>> in realtime. I suggest to try different quality levels and use the bes
>
>
> >
> With my 5 year old laptop (kaby lake based intel i7-8650U 1.9 GHz base,
> low power quadcore), opus encoding with ffmpeg at highest quality
> settings (-compression_level 10) has no problems encoding stereo input
> in realtime. I suggest to try different quality levels and use the best
>
On 04-12-2023 18:04, Aditya Dandavate wrote:
On Mon, 4 Dec, 2023, 10:27 pm Ferdi Scholten, wrote:
*cap_soundcommand* "ffmpeg -f s16le -ar %s -ac 2 -i - -c:a libopus -vbr on
-compression_level 0 -application lowdelay -b:a 128k -y temp_a.nut"
Is this VBR encoding, is `-b:a 128k` the average
On Mon, 4 Dec, 2023, 10:27 pm Ferdi Scholten, wrote:
> *cap_soundcommand* "ffmpeg -f s16le -ar %s -ac 2 -i - -c:a libopus -vbr on
> > -compression_level 0 -application lowdelay -b:a 128k -y temp_a.nut"
> >
> > Is this VBR encoding, is `-b:a 128k` the average bitrate or
> maximum/minimum
> > allow
*cap_soundcommand* "ffmpeg -f s16le -ar %s -ac 2 -i - -c:a libopus -vbr on
-compression_level 0 -application lowdelay -b:a 128k -y temp_a.nut"
Is this VBR encoding, is `-b:a 128k` the average bitrate or maximum/minimum
allowed bitrate ?
___
It is vbr
*cap_soundcommand* "ffmpeg -f s16le -ar %s -ac 2 -i - -c:a libopus -vbr on
-compression_level 0 -application lowdelay -b:a 128k -y temp_a.nut"
Is this VBR encoding, is `-b:a 128k` the average bitrate or maximum/minimum
allowed bitrate ?
___
ffmpeg-user m
ср, 8 нояб. 2023 г., 00:36 Dennis Mungai :
> On Tue, 7 Nov 2023 at 00:55, Andrew Randrianasulu >
> wrote:
>
> > FFmpeg today support some opencl filters (but I was unable to use them
> > freely in Cinelerra-gg probably because they require not just
> > initialization of hw device but also manual
On Tue, 7 Nov 2023 at 00:55, Andrew Randrianasulu
wrote:
> FFmpeg today support some opencl filters (but I was unable to use them
> freely in Cinelerra-gg probably because they require not just
> initialization of hw device but also manual up and download of data ...)
>
> but I wonder if same ope
FFmpeg today support some opencl filters (but I was unable to use them
freely in Cinelerra-gg probably because they require not just
initialization of hw device but also manual up and download of data ...)
but I wonder if same opencl infra can be used in decoders and encoders too?
https://cml.new
Am 30.01.2023 um 20:45 schrieb Paul B Mahol:
filter supports up to 16bit rgb(a), adding float would be trivial.
patch welcome
Thanks for adding float to colorlevels.
Is there any filter for gamma correction with float?
Does the geq filter support float?
Yes.
Gamma correction with float precis
On 1/30/23, Michael Koch wrote:
> Am 30.01.2023 um 12:52 schrieb Paul B Mahol:
>> On 1/30/23, Michael Koch wrote:
>>> Am 30.01.2023 um 10:29 schrieb Paul B Mahol:
> You wrote:
>
> "With default parameters and just strength(2) set to your values, so
> the darkest pixels are left u
Am 30.01.2023 um 12:52 schrieb Paul B Mahol:
On 1/30/23, Michael Koch wrote:
Am 30.01.2023 um 10:29 schrieb Paul B Mahol:
You wrote:
"With default parameters and just strength(2) set to your values, so
the darkest pixels are left untouched."
However I want that black remains untouched. That
On 1/30/23, Michael Koch wrote:
> Am 30.01.2023 um 10:29 schrieb Paul B Mahol:
>>> You wrote:
>>>
>>> "With default parameters and just strength(2) set to your values, so
>>> the darkest pixels are left untouched."
>>>
>>> However I want that black remains untouched. That's not the same,
>>> beca
Am 30.01.2023 um 10:29 schrieb Paul B Mahol:
You wrote:
"With default parameters and just strength(2) set to your values, so
the darkest pixels are left untouched."
However I want that black remains untouched. That's not the same, because
the darkest pixels in the image aren't black.
The work
On 1/30/23, Michael Koch wrote:
> Am 30.01.2023 um 08:47 schrieb Paul B Mahol:
>> On Mon, Jan 30, 2023 at 12:23 AM Michael Koch
>>
>> wrote:
>>
>>> Am 29.01.2023 um 23:36 schrieb Paul B Mahol:
On 1/29/23, Michael Koch wrote:
> Am 29.01.2023 um 23:07 schrieb Paul B Mahol:
>> On 1/29/
Am 30.01.2023 um 08:47 schrieb Paul B Mahol:
On Mon, Jan 30, 2023 at 12:23 AM Michael Koch
wrote:
Am 29.01.2023 um 23:36 schrieb Paul B Mahol:
On 1/29/23, Michael Koch wrote:
Am 29.01.2023 um 23:07 schrieb Paul B Mahol:
On 1/29/23, Michael Koch wrote:
Am 29.01.2023 um 22:05 schrieb Paul
On Mon, Jan 30, 2023 at 12:23 AM Michael Koch
wrote:
> Am 29.01.2023 um 23:36 schrieb Paul B Mahol:
> > On 1/29/23, Michael Koch wrote:
> >> Am 29.01.2023 um 23:07 schrieb Paul B Mahol:
> >>> On 1/29/23, Michael Koch wrote:
> Am 29.01.2023 um 22:05 schrieb Paul B Mahol:
> > On 1/29/23,
On 1/29/2023 10:03 PM, 김기돈 [메타버스엔터테인먼트] wrote:
Q1) Since I'm just using the libav libraries that are included in FFmpeg,
do I still need to distribute the source code of FFmpeg?
(all of the libav* libraries? lbavcodec, libavformat, libavfilter, etc)
The license and livense FAQ should explain t
Hi,
I have two questions while I am following the license compliance checklist.
In the checklist, number 3, it says
*"Distribute the source code of FFmpeg, no matter if you modified it or
not."*
Q1) Since I'm just using the libav libraries that are included in FFmpeg,
do I still need to distribu
Am 29.01.2023 um 23:36 schrieb Paul B Mahol:
On 1/29/23, Michael Koch wrote:
Am 29.01.2023 um 23:07 schrieb Paul B Mahol:
On 1/29/23, Michael Koch wrote:
Am 29.01.2023 um 22:05 schrieb Paul B Mahol:
On 1/29/23, Michael Koch wrote:
Am 29.01.2023 um 19:32 schrieb Paul B Mahol:
On 1/29/23,
On 1/29/23, Michael Koch wrote:
> Am 29.01.2023 um 23:07 schrieb Paul B Mahol:
>> On 1/29/23, Michael Koch wrote:
>>> Am 29.01.2023 um 22:05 schrieb Paul B Mahol:
On 1/29/23, Michael Koch wrote:
> Am 29.01.2023 um 19:32 schrieb Paul B Mahol:
>> On 1/29/23, Michael Koch wrote:
>
Am 29.01.2023 um 23:07 schrieb Paul B Mahol:
On 1/29/23, Michael Koch wrote:
Am 29.01.2023 um 22:05 schrieb Paul B Mahol:
On 1/29/23, Michael Koch wrote:
Am 29.01.2023 um 19:32 schrieb Paul B Mahol:
On 1/29/23, Michael Koch wrote:
Hello,
if I understood the documentation correctly, the n
On 1/29/23, Michael Koch wrote:
> Am 29.01.2023 um 22:05 schrieb Paul B Mahol:
>> On 1/29/23, Michael Koch wrote:
>>> Am 29.01.2023 um 19:32 schrieb Paul B Mahol:
On 1/29/23, Michael Koch wrote:
> Hello,
>
> if I understood the documentation correctly, the normalize filter maps
Am 29.01.2023 um 22:05 schrieb Paul B Mahol:
On 1/29/23, Michael Koch wrote:
Am 29.01.2023 um 19:32 schrieb Paul B Mahol:
On 1/29/23, Michael Koch wrote:
Hello,
if I understood the documentation correctly, the normalize filter maps
the darkest input pixel to blackpt and the brightest input
On 1/29/23, Michael Koch wrote:
> Am 29.01.2023 um 19:32 schrieb Paul B Mahol:
>> On 1/29/23, Michael Koch wrote:
>>> Hello,
>>>
>>> if I understood the documentation correctly, the normalize filter maps
>>> the darkest input pixel to blackpt and the brightest input pixel to
>>> whitept:
>>> dark
Am 29.01.2023 um 19:32 schrieb Paul B Mahol:
On 1/29/23, Michael Koch wrote:
Hello,
if I understood the documentation correctly, the normalize filter maps
the darkest input pixel to blackpt and the brightest input pixel to
whitept:
darkest pixel --> blackpt
brightest pixel --> whitept
However
On 1/29/23, Michael Koch wrote:
> Hello,
>
> if I understood the documentation correctly, the normalize filter maps
> the darkest input pixel to blackpt and the brightest input pixel to
> whitept:
> darkest pixel --> blackpt
> brightest pixel --> whitept
>
> However I need a slightly different map
Hello,
if I understood the documentation correctly, the normalize filter maps
the darkest input pixel to blackpt and the brightest input pixel to whitept:
darkest pixel --> blackpt
brightest pixel --> whitept
However I need a slightly different mapping:
A black input pixel shall remain black,
On Sun, Oct 9, 2022 at 12:59 PM wrote:
> how i can overlay an input with current date and time?
>
>
I use drawtext when I create videos from time lapse photos using this
command:
ffmpeg.exe -hide_banner -r 30 -i
C:\Users\Wim\Videos\20221009-PSSC\Wim%05d.JPG -vf
crop=in_w:9/16*in_w,drawtext=fontf
On Sun 9 Oct 2022 at 20:59, wrote:
> how i can overlay an input with current date and time?
Hi,
The drawtext filter should do what you want. I’ve mostly used it for
timecode and text but it has features for datetime as well.
https://ffmpeg.org/ffmpeg-filters.html#toc-drawtext-1
-Kieran
___
how i can overlay an input with current date and time?
___
ffmpeg-user mailing list
ffmpeg-user@ffmpeg.org
https://ffmpeg.org/mailman/listinfo/ffmpeg-user
To unsubscribe, visit link above, or email
ffmpeg-user-requ...@ffmpeg.org with subject "unsubsc
Thank you for the info. Your advice is helpful.
-Original Message-
From: ffmpeg-user On Behalf Of Devin
Heitmueller
Sent: Monday, August 1, 2022 4:47 PM
To: FFmpeg user questions
Subject: Re: [FFmpeg-user] Question for FFmpeg-user list
On Sun, Jul 31, 2022 at 10:38 PM Seth Ansell
On Sun, Jul 31, 2022 at 10:38 PM Seth Ansell wrote:
>
> Thank you James.
>
> I will try that out and let you know how it works.
Bear in mind there's a real possibility the manufacturer is simply
wrong. Most of the chipsets out there which deliver ITU 601 data will
do UYVY, not VYUY. It's entire
Thank you James.
I will try that out and let you know how it works.
Cheers,
--Seth
-Original Message-
From: ffmpeg-user On Behalf Of James Insell
Sent: Sunday, July 31, 2022 6:26 PM
To: ffmpeg-user@ffmpeg.org
Subject: Re: [FFmpeg-user] Question for FFmpeg-user list
Hi Seth,
You can
Hi Seth,
You can show the list of pixel formats supported by ffmpeg with the
command "ffmpeg -pix_fmts". Unfortunately I don't think CrYCbY (which
is practically equivalent to VYUY) is among them.
What I would suggest is to treat the format as if it were UYVY 4:2:2 (
-pixel_format uyvy422 )
Hello,
I am a newbie to FFmpeg, but in viewing the documentation, I am unable to
learn the command to do the following. I have a video board that is
outputting YCrCb 4:2:2 (the manufacturer says the order is CrYCbY………).
I wish to write this video output to a in a raw 4:2:2 format exactly as
Am 23.07.22 um 06:56 schrieb tu...@posteo.de:
Hi,
My blender animation render process normally results in files like
0002.png 0003.png . 0459.png
I use this script to join them into a mp4 video:
ffmpeg -r 25 -f image2 -s 1280x1280 -i %04d.png -vcodec libx264 -crf 25
-pix_fmt yuv4
Hi,
My blender animation render process normally results in files like
0002.png 0003.png . 0459.png
I use this script to join them into a mp4 video:
ffmpeg -r 25 -f image2 -s 1280x1280 -i %04d.png -vcodec libx264 -crf 25
-pix_fmt yuv420p $1
with $1 given the name of the resulting vide
Hi,
If you mean the when you using ffmpeg recording, it stopped
unexpectedly. Please post ffmpeg's last a few lines error message, it
should help for indicate why it's interrupted.
On 6/15/22, 井澤拓海 wrote:
> Nice to meet you. I am a programmer in Japan.
> Please understand that this sentence is w
Nice to meet you. I am a programmer in Japan.
Please understand that this sentence is written using DeepL translation, so
it may be written in strange English.
I am currently trying to call ffmpeg from Unity to record a screen at work.
The "q" is supposed to be entered at the end of the recording,
Just a quick question. Basically I'm trying to get ffmpeg to generate colored
pixels but its only working with black and white.
I'm trying to convert an image into pixels/video and then be able to convert it
back.My command is: ffmpeg -f rawvideo -pix_fmt monob -s 160x90 -r 30 -i
image0.png -vf
On 13/9/21 7:13 pm, Paul B Mahol wrote:
On Mon, Sep 13, 2021 at 11:06 AM Tim Lloyd wrote:
Hi, Thanks for letting me join this mailing list. First post and my
knowledge of ffmpeg is basic at best.
I want to rip a radio stream and I can achieve this simply with
/ffmpeg -i http://orion.shoutc
On Mon, Sep 13, 2021 at 11:06 AM Tim Lloyd wrote:
> Hi, Thanks for letting me join this mailing list. First post and my
> knowledge of ffmpeg is basic at best.
>
> I want to rip a radio stream and I can achieve this simply with
>
> /ffmpeg -i http://orion.shoutca.st:8726/stream -t 00:10:00 nova.m
Hi, Thanks for letting me join this mailing list. First post and my
knowledge of ffmpeg is basic at best.
I want to rip a radio stream and I can achieve this simply with
/ffmpeg -i http://orion.shoutca.st:8726/stream -t 00:10:00 nova.mp3/
This gives me a file which is 96 kb/s
However this site
Am 26.07.2021 um 14:27 schrieb tim.russ...@med-associates.com:
Does FFMPEG support sample rates (using the '-ar' parameter) of 192k?
I don't see it listed in the documentation.
yes that works, here is an example:
ffmpeg -f lavfi -i sine=1000:d=10 -ar 192000 sine.wav
Michael
_
Does FFMPEG support sample rates (using the '-ar' parameter) of 192k?
I don't see it listed in the documentation.
Does FFMPEG support sample formats (using the '-sample_fmt' parameter) of 32
bit integer?
What do the sample formats of "s32" and "s32p" represent (neither of which
worked for me?
Hi, dear developer:
I use 'ffmpeg -i x.png -pix_fmt yuv420p10le -y x.yuv' to get a
10-bit yuv file, which is very convenient. Then, I try to
reproduce this progress by Python. So I want to know how ffmpeg convert
16-bit png to 10-bit yuv. What is the formula to convert 16-bit rgb to
10-bit
Sorry, here’s the images again:
> Westerbork_Film_6479.jpg (showing a frame count of 6739)
https://ibb.co/9qgvqzS
> Westerbork_Film_2171.jpg: (showing a frame count of 2259)
https://ibb.co/jWsSynJ
__
PhD candidate at Filmuniversität Babelsberg, Germany
latest publication:
http://www.apparat
Dear Mailing list peers!
I am currently using ffmpeg in order to produce screenshots of each new scene
in archival footage. The name of the screenshot is supposed to include the
framcount and I want to make a screenshot 3 frames after the cut so my
commandline looks like this:
ffmpeg -i WESTER
Dear ffmpeg-user@ffmpeg.org
I want to progressive to interlaced conversion
is there any way?
Code I tried on how to convert a progressive sequentially
numbered PNG file to interlaced.
①-top 1 -flags:v +ilme+ildct-top 0 -flags:v +ilme+ildct
②-vf tinterlace=interleave_top
③telecine=pattern=23
bu
Just tried the master branch and indeed the .gif thumbnail produced is
completely clean now. I guess it'll land in 4.3.3 or 4.4. Thanks for your help.
‐‐‐ Original Message ‐‐‐
On Wednesday 17 March 2021 17:10, pdr0 wrote:
> FFmpeg-users mailing list wrote
>
> > You mean the master versi
FFmpeg-users mailing list wrote
> You mean the master version without checking out the n4.3.2 release?
>
> ‐‐‐ Original Message ‐‐‐
> On Wednesday 17 March 2021 16:40, pdr0 <
> pdr0@
> > wrote:
>
>> FFmpeg-users mailing list wrote
>>
>> > Trying your command in my console gives the exac
You mean the master version without checking out the n4.3.2 release?
‐‐‐ Original Message ‐‐‐
On Wednesday 17 March 2021 16:40, pdr0 wrote:
> FFmpeg-users mailing list wrote
>
> > Trying your command in my console gives the exact same "buggy" gif
> > thumbnail I sent in my first email. H
FFmpeg-users mailing list wrote
> Trying your command in my console gives the exact same "buggy" gif
> thumbnail I sent in my first email. Here's a screenshot of my console's
> process: https://files.catbox.moe/m2xldm.png
>
> ‐‐‐ Original Message ‐‐‐
> On Wednesday 17 March 2021 16:07, pdr
Trying your command in my console gives the exact same "buggy" gif thumbnail I
sent in my first email. Here's a screenshot of my console's process:
https://files.catbox.moe/m2xldm.png
‐‐‐ Original Message ‐‐‐
On Wednesday 17 March 2021 16:07, pdr0 wrote:
> FFmpeg-users mailing list wro
FFmpeg-users mailing list wrote
> I'm using 4.3.2 built from source.
maybe there is a regression ? post your console output
https://i.postimg.cc/htBxJ81m/output.gif
ffmpeg -i frrsev.gif -filter_complex "scale=250:250, split[a][b]; [a]
palettegen=reserve_transparent=on:transparency_color=ff[
I'm using 4.3.2 built from source.
‐‐‐ Original Message ‐‐‐
On Wednesday 17 March 2021 15:51, pdr0 wrote:
> FFmpeg-users mailing list wrote
>
> > Hello. I'm using ffmpeg to generate thumbnails for my JavaScript web
> > project. Now I'm having a little problem with .gif thumbnails. Ori
FFmpeg-users mailing list wrote
> Hello. I'm using ffmpeg to generate thumbnails for my JavaScript web
> project. Now I'm having a little problem with .gif thumbnails. Original
> gif: https://files.catbox.moe/frrsev.gif my software's thumbnail:
> https://files.catbox.moe/3rtv3o.gif
>
> As you can
Hello. I'm using ffmpeg to generate thumbnails for my JavaScript web project.
Now I'm having a little problem with .gif thumbnails. Original gif:
https://files.catbox.moe/frrsev.gif my software's thumbnail:
https://files.catbox.moe/3rtv3o.gif
As you can see, the thumbnail is not perfect and kin
: [FFmpeg-user] Question regarding "Thread message queue blocking"
> Am 10.03.2021 um 07:01 schrieb :
>
> I have a question
Please (test current FFmpeg git head, the only version supported here, and)
provide the command line you tested together with the complete, uncut console
> Am 10.03.2021 um 07:01 schrieb :
>
> I have a question
Please (test current FFmpeg git head, the only version supported here, and)
provide the command line you tested together with the complete, uncut console
output as text, do not attach images.
Carl Eugen
___
On 9/14/2020 4:57 AM, Michael Koch wrote:
On 14-09-2020 04:54 pm, Gyan Doshi wrote: >> Each filter presents a list of
input formats they can work with and a list
of output formats they can directly generate. [...]
Thanks for good explanation!
Yes, that makes sense. Could that be included i
1 - 100 of 336 matches
Mail list logo
