Re: [FFmpeg-user] How to make IDR cuts

s-up, you seem to have forgotten to put any text in your > message, Mr. Shupert. It just quotes mark's email. > > You're welcome, > David > > On Sat, 20 Apr 2024 17:26:20 -0400 > jim shupert wrote: > > On Wed, Apr 3, 2024 at 8:02 AM Mark Filipak > > wrote

Re: [FFmpeg-user] How to make IDR cuts

On Wed, Apr 3, 2024 at 8:02 AM Mark Filipak wrote: > Is there more to this? If there is, it's not evident to me. > > If there are several B-frames in a row, then adjust your mind to 'see' > larger shifts across the > multiple B-frames and adjust PTSs & DTSs to match. > > > Cutting off a leading o

Re: [FFmpeg-user] Can I convert from .ram to .mp4?

On 6/17/2020 1:59 PM, Reindl Harald wrote: Am 17.06.20 um 19:26 schrieb David: I've watched the video and invoked a simple command: ffmpeg -i 317.ram 317.mp4 which the Windows PowerShell said I had to change to .\ffmpeg -i 317.ram 317.mp4 which I did. I have the ffmpeg.exe file in the same fo

Re: [FFmpeg-user] a q about units

It's byte offset from start of data stream. Gyan Good info fellas also I find related info from Gyan at https://superuser.com/questions/1512575/why-total-frame-count-is-different-in-ffmpeg-than-ffprobe/1512583#1512583 Thanks again Gyan and https://stackoverflow.com/questions/3032929/proble

[FFmpeg-user] a q about units

Friends This is a rather general Q when I see dialogue such as [matroska,webm @ 0x7f362c000b80] Read error at pos. 59270674468 (0xdccceb824) as in Input #0, matroska,webm, from 'pipe:': Metadata: ENCODER : Lavf58.29.100 Duration: N/A, start: 0.00, bitrate: 12288 kb/s Stream #0:0: Audio: p

Re: [FFmpeg-user] Q: How to generate sound file with different frequencies for left/right (alternating)

On 5/13/2020 4:06 PM, ffm...@osk.ch wrote: Hello I would like to generate a sound file with two frequencies, sinus, one per channel (left, right) alternating between them. For example: left 0.5 sec 5kHz, then right 0.5 sec 8kHz and so on. I've spent hours reading ffmpeg docs but am overwhelmed

Re: [FFmpeg-user] Failure: No wav codec tag found

On 4/18/2020 9:28 AM, Kieran O Leary wrote: On Sat, Apr 18, 2020 at 12:53 AM Mark Filipak < markfilipak.windows+ffm...@gmail.com> wrote: On 04/17/2020 07:50 PM, Carl Eugen Hoyos wrote: Am Sa., 18. Apr. 2020 um 01:42 Uhr schrieb Mark Filipak : I know that PCM was never used for DVDs DVDs wit

Re: [FFmpeg-user] Ffmeg multi-threading introduction

On 2/18/2020 3:42 AM, Mohammed Bey Ahmed Khernache wrote: Hello, I am novice to programming upon ffmpeg. I would like to know how ffmpeg manages to decode multiple regions of a frame (slices, tiles, NALs, etc) in parallel. Could you point me to the files/functions that do this job? Best regards

Re: [FFmpeg-user] Reading LTC from an audio track?

So the challenge actually is we don’t know the start TC. In fact that’s really all we need. would this help? https://github.com/x42/ltc-tools https://github.com/x42/libltc/releases ltcdump -f 29.97 dog.mp4 2> /dev/null > dog.ltc.txt ___ ffmpeg-u

Re: [FFmpeg-user] Reading LTC from an audio track?

We're hoping there's something in the world of FFMpeg / FFProbe might be able to help here. On Nov 19, 2019, at 6:56 AM, Harvey Pikelberger wrote: Is there a command to tell FFMpeg to read LTC from a specific audio track? I do not know about that but would it help if you made a sec

Re: [FFmpeg-user] Get Link Stream Output Error "Invalid data found when processing input"

this could be considered a thread hijack  { sorry } sorry but we seem to have had a few windows folks who are submitting screen captures for the "complete console - yada yada" so ; a wee how to might help both ends of this effort one can on windows do a "mark" and copy or do your command pip

[FFmpeg-user] dpx to prores mov

in advance, any clues would be appreciated. best wishes jim shupert ---:: console output from errors S:\Scans\job_ohist\DPX\H_N-Reel1>ffmpeg -f image2 -framerate 24 -i H_N-Reel1_%07d.dpx -c:v prores_ks -pix_fmt yuv422p10le -profile:v 3 -analyzeduration  6 -probesize 2147483

Re: [FFmpeg-user] Detecting upscaled video (resolution), detecting lower to higher encoding

On 7/19/2019 5:26 AM, Marc Roos wrote: Is there a way to ffmpeg or maybe another tool that detects if video has been re-coded to a higher resolution? For instance if I am offered two downloads one 720p and one 1080p. I have sometimes the impression that the 1080p is just the 720p converted to 10

Re: [FFmpeg-user] Panasonic GH4 4K live stream using ffmpeg

On 7/15/2019 4:10 AM, Fred Perie wrote: On Mon, Jul 15, 2019 at 1:46 AM Michael Shaffer wrote: Can anyone recommend a good HDMI input card that will work with ffmpeg in Ubuntu Linux? Thanks, Michael Shaffer ___ ffmpeg-user mailing list ffmpeg-user@ff

Re: [FFmpeg-user] List members behaving badly

I'm from the Republic of Ireland and I have found your behaviour to be inappropriate for years. from the heartland of the USA  I offer the hopeful words of that tragic American *Rodney King*, the man whose vicious beating by the police department was caught on video. Mr. King cried out, “Why

Re: [FFmpeg-user] audio channel manipulation

On 1/22/2019 8:03 AM, Moritz Barsnick wrote: On Tue, Jan 22, 2019 at 11:09:50 +0100, andrei ka wrote: interesting, looks like ffv1 did zero compression here, stream size of .mov & ffv1 avi is the same. or the file size changed, it's only mediainfo computed decompressed stream size ? Good observ

Re: [FFmpeg-user] audio channel manipulation

On 1/21/2019 2:45 PM, Moritz Barsnick wrote: On Mon, Jan 21, 2019 at 14:01:52 -0500, Jim Shupert wrote: if it is in 4 streams you can pick which to hear. My capture system captures 10bit unc mov video [0:0]  ( 4ch_test.mov ) and the 4 audio "tracks" are found in 1 stream as 4 chann

[FFmpeg-user] audio channel manipulation

Friends, I think I have a solution to my needs. My purpose here is to share and ask if there is a better way to achieve my goal. I would be happy to the thoughts of others. This matter of audio mapping , channel selection is something that i wished I understood better. Goal: capture from dbet

Re: [FFmpeg-user] Need assistance finding l transcoding

;) strictly prohibited. If you have received this transmission in error, please reply to the sender listed above immediately and permanently delete this message from your inbox. :) I am not so sure i " received this transmission in error " but -- ok -- i deleted it _

Re: [FFmpeg-user] Obscure Watermarking with ffmpeg possible?

A big player on obscure watermarking is "nexguard" ( https://dtv.nagra.com/watermarking) Nexguard has an API for implementing their technology in external transcoders. Maybe this would be a possible solution for using obscure watermarking with ffmpeg? isn't nexguard an expensive solution? -- w

Re: [FFmpeg-user] ffmpeg pop and deesser filters

. I would like to add an audio filter to get rid of 'pop' and 'ess' sounds, especially present when pronouncing the 'p' sound and 's' and 'sh' sounds respectively. Does anyone have a suggestion for which (free linux) filters do this well and work well with ffmpeg? I've been looking into ladsp

Re: [FFmpeg-user] Audio Desynchronization When Utilizing Segmentation

On 3/25/2018 9:30 PM, Gabriel Balaich wrote: -i video="Video (00 Pro Capture HDMI 4K+)" a question - what is your capture card? ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit

Re: [FFmpeg-user] use question

I see that you are a windows usr. 1st - i would suggest linux ( i could expand on the benefits ) 2nd- try something like this in a file.bat @echo off cd for /f %%a IN ('dir /b *.mp4') do  ( ffmpeg.exe -i %%a -y < your ffmpeg cmd instructions of choice>   %%~na_frame%d.png ) __

[FFmpeg-user] Question Falcc for mathmatically lossless

friends, I wish to know more about flac audio encoding in ffmpeg , i am just starting. I see by the documentation : FLAC (Free Lossless Audio Codec) Encoder compression_level Sets the compression level, which chooses defaults for many other options if they are not set explicitly. Valid value

Re: [FFmpeg-user] Quicktime reference files

On 1/17/2018 7:18 AM, Carl Eugen Hoyos wrote: 2018-01-04 9:52 GMT+01:00 Kasper Folman : I’m having a hard time working something out with quicktime reference files. I also have struggled with this . The use of quicktime reference files. but it was some time ago . indeed I gave up. I would li

Re: [FFmpeg-user] ffprobe not working in command line

On 1/4/2018 1:37 PM, Gaye Gül Bulut wrote: Hi all, Previously, I was able to create csv files using ffprobe. Today, I am getting this error: $ ffprobe 'ffprobe' is not recognized as an internal or external command, operable program or batch file. I tried killing the terminal and restarting an

[FFmpeg-user] DPX 10bit Log in FFplay and is there a test

i had was something like ffprobe < test for logness > 0001.dpf and it returns y or n I wish for a objective "test" Thanks much jim shupert ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-u

Re: [FFmpeg-user] man ffmpeg absent

I would like to hijack this thread and say How much i respect , love and depend on this community and as a native EngLish speaker i would like to add Viva Amatur ! { forgive the top post i know , i know } On 7/18/2017 12:11 PM, Bouke / VideoToolShed wrote: On 18 Jul 2017, at 17:50, Moritz

Re: [FFmpeg-user] config log during ios for setup ijkmediaplay library

what would be the advantage to all the disabling ? I suppose I am wondering -- why would one wish to --disable-protocol=concat ; to name 1. and why state " --enable-protocol=async " , is it not enabled by default -- if so then no explicit declare results in "--enable-protocol=async" _

Re: [FFmpeg-user] how to see what version of ffv1

On 3/23/2017 12:31 AM, Dave Rice wrote: Hi Jim, On Mar 22, 2017, at 9:55 PM, jshup...@theppsgroup.com wrote: Friends, 3 Qs q1 I am wondering how I can tell what version of ffv1 a file is encoded with? I find a ticket 1534 https://trac.ffmpeg.org/ticket/1534 that seems to have the same conce

[FFmpeg-user] Q about overlay and live sources

I have been reading about the 38.102 overlay filter I have looked at https://trac.ffmpeg.org/wiki/Create%20a%20mosaic%20out%20of%20several%20input%20videos and http://www.ffmpeg.org/ffmpeg-all.html#overlay-1 I was wondering if It is possi

Re: [FFmpeg-user] issues installing ffmpeg php

Arturo I do not utilize ffmpeg php - but am intrested in it. question: can you run ffmpeg -- in general? do you have a "good" ffmpeg install? ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To uns

[FFmpeg-user] ffv1 level

if one does not declare a level or a gop what is the default meaning ffmpeg -i \ -acodec copy \ -vcodec ffv1 \ -level 3 \ -coder 1 \ -context 1 \ -g 1 \ -level 3 declares , ffv1 vers 3 -g 1 d

Re: [FFmpeg-user] Converting several .webm files to mp3 with one command

On 7/1/2016 11:51 AM, Canadian Cyanide wrote: Hello, I have some .webm audio files in a folder that I would like to convert to mp3 without having to enter the name of each one individually. How would I go about doing that? Also, if I'm not supposed to be doing this by email, please direct me t

[FFmpeg-user] ffmpeg with nvidia nvr across all codecs

I have a "general" Q about ffmpeg with nvidia nvr Does building ffmpeg with nvidia nvr help with the trascode speed of all codecs - not just mp4? Is there a - across all codecs - benefit? or to say it another way. If I built a machine ubuntu - /ffmpeg/nvidia card with cuda following thi

[FFmpeg-user] is it possible to add meta data of encoded date

is it possible if one is NOT transcoding but already has a file and just adds meta data 7:: WINNER WINNER mediaInfo DINNER ffmpeg -i input -c copy -map 0 -metadata creation_time="2013-07-24 10:13:48" output.mp4 ffmpeg -i ~//Videos/ShupeJarArtVideo/sjp_0.mp4 \ -c copy -map 0 -meta

[FFmpeg-user] is it possible to add meta data of encoded date

Friends, I wish to write meta data to a mp4 file. specifically i wish to write the ednoded date as it is found in a probe by media info example / here is a snip from media info ... Encoded date: UTC 2014-11-05 05:02:03 Tagged date : UTC

Re: [FFmpeg-user] Keep creation date while converting on Windows 7

On 2/23/2016 1:32 AM, Patryk Tabiś wrote: Hi, I'm new to the ffmpeg. I've got a big collection of videos and I want to convert all of them to h.265. I know how to do it but when I convert there is new creation date. I want to keep old creartion date. Is it possible? If yes, how? ___

Re: [FFmpeg-user] libfaac not found error

On 2/3/2016 8:54 PM, Jim Worrall wrote: On 2016 Feb 2, at 12:22 PM, Чжо Зо Лвин wrote: I am a ffmpeg beginner on mac. I can't install on my computer. I attach a photo with e-mail. My error is libfaac not found. How can I solve this error. According to https://trac.ffmpeg.org/wiki/Encode/AAC,

Re: [FFmpeg-user] Trying to cut 5 sec of beginning and ending of mp4 files Success!

I want to thank all that has submitted suggestions to me. I am guessing all of them are for Linux. I really only know Windows. I have loaded a laptop with Ubuntu. I think it will take me longer to learn that then to manually edit each end of each file using Avidemux. I really don’t even know wh

Re: [FFmpeg-user] Trying to cut 5 sec of beginning and ending of mp4 files

> Hi > > I am been trying almost every combination of switches to be able to cut 5 > sec from the start and 5 sec from the ending of variable length mp4 files. > > I have not been successful at doing either. I guess I really don't > understand the usage. I have more than 100 files to do. > > Can

Re: [FFmpeg-user] Issue with install ffmepg

well start over with this as guide https://trac.ffmpeg.org/wiki/CompilationGuide/Ubuntu and if problems - respond here & be specific best of luck ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user

Re: [FFmpeg-user] how to programitically close a ffplay event

> On Wed, 30 Dec 2015 11:52:03 -0500 > "Jim Shupert, Jr." wrote: > >> I am very much able to PLAY in the manner i wish but seem UNABLE to end >> a >> ffplay event so that it can move forward to the next event. > > -autoexit that WORKS! so simple , s

Re: [FFmpeg-user] how to programitically close a ffplay event

> Jim Shupert, Jr. theppsgroup.com> writes: > >> You will see where I have tried vatious methods to >> kill ffplay. > > Just send SIGHUP to the FFplay process. > > Carl Eugen if you mean kill -SIGHUP ffplay in something like below... It does not work ffplay ju

[FFmpeg-user] how to programitically close a ffplay event

I am suspect that My question here will be judged as to broad or having to do with a shell script and therefore be dismissed. But , I am curious for a solution so I will ask anyway. Any wisdom is welcomed. Thanks in advance. Yes I realize this is a "hard one" , well-- it has been hard for me. ;)

[FFmpeg-user] encrypted red files R3D

Friends, It is my understanding that ffmpeg could once upon a time work with red camera files.[ fl.R3D ] But the good folks at red have defeated that noble endeavor by encrypting the files. I do not find much info on this by my googling. I wonder if anyone here knows more on this subject. 1-co

[FFmpeg-user] test 2

this is only a test ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user

Re: [FFmpeg-user] Converting a cassette audio tape (Lecture) to mp3

audacity http://web.audacityteam.org/ ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user

Re: [FFmpeg-user] ffplay at half size by means of a math function

On 6/30/2015 5:32 PM, Lou wrote: On Tue, 30 Jun 2015 17:17:39 -0400 Jim Shupert wrote: here is what i settled on. it works ffplay -vf "scale=iw/2:ih/2" -i /media/data/zzz-s/NASA_logo.mov Enhance laziness: -vf "scale=iw/2:-1" Also, you can remove the "-i" i

Re: [FFmpeg-user] ffplay at half size by means of a math function

On 6/30/2015 3:25 PM, Dave P wrote: On Jun 30, 2015 11:32 AM, "Jim Shupert, Jr." wrote: Friends, I wish to be able to play a file with ffplay but have it play at 1/2 the real size with -x NUM -y NUM I can control play size with ffplay -x 640 -y 360 -i dog.avi this works as

[FFmpeg-user] ffplay at half size by means of a math function

Friends, I wish to be able to play a file with ffplay but have it play at 1/2 the real size with -x NUM -y NUM I can control play size with ffplay -x 640 -y 360 -i dog.avi this works as hoped but what I would really like to do is do some math on the file and scale it down with something lik

Re: [FFmpeg-user] what program to use to grab device and send to ffserver?

1) Install the Mac driver for BMD (BMD Desktop) I assume you mean the standard desktop video driver (which is installed together with Media Express)? 2) Download the Decklink SDK (from https://www.blackmagicdesign.com/support/download/f3e35f03b97440c4893fdf7e0dfdf97c/Mac%20OS%20X) Where sh

Re: [FFmpeg-user] Private Options for prores-ks

On 6/2/2015 12:40 PM, Kevin Wells wrote: The following media files are not optimized for Final Cut Pro https://transcoding.wordpress.com/2012/01/29/prores-ffmpeg/ All that means is, that the file wasn’t compressed using FCP while as the file should work fine. and indeed , in my experience ,

Re: [FFmpeg-user] Making conditional statements with FFMPEG

On 4/30/2015 8:22 AM, Chris Zecco wrote: Thanks Moritz, Would I enter this right into my command prompt, or would I create a separate file to run this statement from? I keep getting an error saying "File unexpected at this time". Apologies for any ignorance. I am new to using the command win

Re: [FFmpeg-user] Different bitrates for videos and creation of manifest files

> Hello, > > We have few videos, and we want generate different bitrates for those > videos and create a manifest file for it.. > Could you please tell us the steps we need to use for this.. > > Thank you, > Ria > Friend Ria It might be said that your request is to vague - not enough info. so l

Re: [FFmpeg-user] Detecting blue frames.

that is a most elegant solution . I look forward to giving it a go ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user

Re: [FFmpeg-user] webm to mpg

On 15-01-02 06:40 AM, Ajtim wrote: Hi! I have still problem with converting youtube webm to mpg and than made a dvd which doesn't plays good on dvd recorder on tv. I use FreeBSD and ffmpeg is version: ffmpeg version 2.3.5 Copyright (c) 2000-2014 the FFmpeg developers built on Dec 8 2014 17:

Re: [FFmpeg-user] brew install ffmpeg on 10.10 Yosemite for wma to mp3 batch conv.

> bash // > brew install ffmpeg // seems to work > cd folder with wmas > for f in *.wma; do ffmpeg -y -i "$f" -c:a libfdk_aac -b:a 192k > "${f%.wma}.m4a"; done; > // try a script > -> error Unknown encoder 'libfdk_aac' > > > any ideas? > > the happiest solution would be that you simply do no

Re: [FFmpeg-user] Any ffmpeg plugin for image stabilization that handles walking tilt?

friend Fernando I do not have a direct reply to your questions. But rather a comment - I have recently been reading about how the "softwear" of human perception that allows us to all "deal with" the shaking of our vision and how we smooth that out. and and how that is defeated when we have ob