[FFmpeg-user] Some more thoughts on documentation

Hello, I'm fairly sure that someone will object to a point below. Go ahead, but also suggest something better; if you can't think of an improvement, maybe it's better not to say anything. (And if something is not correct, tell us what is; just saying "Wrong!!" is not helpful.) On 8/23/2020

Re: [FFmpeg-user] Why is format=rgb24 required after maskedmerge?

On 8/22/2020 2:03 AM, Nicolas George wrote: There is no duplication, only multiple outputs. Would you also remove the man pages because they are "duplicate" of the HTML pages? Multiple outputs is not duplicative? If the same info in the same format is in two places, that rather sounds like

Re: [FFmpeg-user] Why is format=rgb24 required after maskedmerge?

On 8/21/2020 3:33 AM, Michael Koch wrote: I never found that "General Documentation" file because I thought "ffmpeg-all" contains what the filename implies: All. This is obviously not the case. The filename is misleading, if the file doesn't contain all documentation. Wouldn't it be better to

Re: [FFmpeg-user] Why is format=rgb24 required after maskedmerge?

On 8/21/2020 10:59 AM, Paul B Mahol wrote: I think git usage is far less complicated than ffmpeg. Also git should be better documented too. Both of those are true :), but still can be mystifying. For those on windoze, there are git GUIs available that take some of the pain out; I generally

Re: [FFmpeg-user] How to have a secure UDP BroadCast

On 8/19/2020 5:22 AM, Moritz Barsnick wrote: Perhaps the original poster meant "broadcast" in the sense of "sending"? I suspect that's the case- not broadcast in the networking sense. z! ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org

Re: [FFmpeg-user] libx265 a lot slower

On 8/17/2020 1:53 AM, Phil Rhodes via ffmpeg-user wrote: People, be polite. Harald, you are incredibly impolite. This is a user list. It is reasonable for people to ask basic questions here. Your assumption that everyone is an expert is unreasonable. Exactly. And many people will readily say

Re: [FFmpeg-user] libx265 a lot slower

Reindl is known for acerbic and unhelpful answers, AFAICT most readers ignore them. On 8/16/2020 10:02 AM, Cecil Westerhof wrote: For the moment I will keep with 264. Especially because these files are only played once. Just wanted to make sure I was not overlooking something. Probably

Re: [FFmpeg-user] Getting audio correct (Zoom meeting)

On 8/15/2020 3:14 AM, Cecil Westerhof wrote: I understood that there are different ways to record Zoom meetings. (I am not doing it myself, I only get the results.) I found that what I got was extremely small. (A video of six minutes only took 56.7 MB.) What would be the best way to record Zoom

Re: [FFmpeg-user] Unable to use hardware encoder h264_rkmpp with software decoded ATSC OTA transmission using rk

On 8/13/2020 12:28 PM, Brad Bruggemann wrote: ffmpeg version 589de66a0b Copyright (c) 2000-2018 the FFmpeg developers Always the first question- have you tried an up-to-date build of ffmpeg? If not, please do. Later, z! ___ ffmpeg-user mailing

Re: [FFmpeg-user] Grid of videos starting at different times

On 8/12/2020 9:13 AM, Randy Johnson via ffmpeg-user wrote: What does "op-post" mean? I am not familiar with that term. Sorry, "top-post" z! ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To

Re: [FFmpeg-user] Grid of videos starting at different times

please do not op-post on this list On 8/12/2020 6:58 AM, Randy Johnson via ffmpeg-user wrote: I did a ton of reading yesterday but cannot figure out how to expand this to more than 2 videos. I am getting hung up on how to read the complex_filter. There are several examples of multi-picture

Re: [FFmpeg-user] Loading shared libraries in macOS

On 8/12/2020 4:52 AM, Aleksid wrote: They can be loaded only if I use --prefix=/usr/local/Cellar/ffmpeg and then put dylibs into /usr/local/Cellar/ffmpeg/libs folder. Then do that, it's what --prefix is for. I understand that it is correct in a world of Unix systems. But I would prefer to

Re: [FFmpeg-user] FFmpeg distribution help

Hello, Please read the mailing list FAQ which instructs people not to top-post. On 8/5/2020 1:45 PM, Don Fotheringham wrote: Is there no procedure that allows for some path to an agreement of user fees or whatever? There is not; the GPL and LGPL don't need one, follow the compliance

Re: [FFmpeg-user] FFmpeg distribution help

On 8/5/2020 1:26 PM, Don Fotheringham wrote: We have developed software that requires the distribution of FFmpeg (included in the download). Our intention is to sell the software. Who do I contact to inquire further about how to proceed regarding permission, royalties, fees etc.? Since ffmpeg

Re: [FFmpeg-user] Input Buffer ovverun with Decklink 8K Pro and Nvenc

On 8/5/2020 12:23 PM, jroch via ffmpeg-user wrote: I figured out i was not setting pixel format. And I should have noticed that- BMD boards are famously finicky about the parameters. About top post, sorry for that, i don't even think i know what this is about. Use google? z!

Re: [FFmpeg-user] How can I get a duration and fps of any video that corresponds with the number of frames that can be read?

On 8/5/2020 9:52 AM, Tom Burrows via ffmpeg-user wrote: I need to get the duration of any video file such that when multiplied with the media's fps value (in this case, either ’tbr’ or ‘fps'), it equals the number of frames in the video. That works until you find a variable frame-rate video. I

Re: [FFmpeg-user] Input Buffer ovverun with Decklink 8K Pro and Nvenc

On 8/5/2020 10:10 AM, jroch via ffmpeg-user wrote: Any ideas on how to troubleshoot this ? First- post the complete command output. Second- check to see that your system has enough resources (cpu/mem/etc), in general, to make this work. (Try using the BMD MediaExpress program to capture.)

Re: [FFmpeg-user] How to create good video from low quality jpeg

On 7/28/2020 2:17 PM, Kawada Tsuyoshi wrote: I executed same command on Ubuntu 20.04 again. I got good quality video. Note that the linux disrto version doesn't matter at all, only the ffmpeg version. And please do not "top-post" on this mailing list. z!

Re: [FFmpeg-user] How to create good video from low quality jpeg

On 7/27/2020 5:26 PM, Kawada Tsuyoshi wrote: $ ffmpeg -r 30 -i %03d.jpg -vcodec libx264 -pix_fmt yuv420p -r 30 out.mp4 Please post the complete & unedited command output, that will tell us a lot about what you're doing. z! ___ ffmpeg-user mailing

Re: [FFmpeg-user] trouble installing ffmpeg

On 7/22/2020 1:53 PM, Jake McGaker wrote: and when I get to the step after I edit the environmental variables and I type in the cmd prompt, I get an error saying ffmpeg didn't install. Almost no one here is going to watch the video, please just explain what's going on and include the command

Re: [FFmpeg-user] Webcam capture

On 7/22/2020 6:22 AM, Rodolfo Medina wrote: Same problem also with simply: $ ffmpeg -f alsa -i hw:1,0 -f video4linux2 -i /dev/video0 out.mpg , and audio completely out of sync... And complete command output is still missing (it's always helpful) Since this works-- mencoder tv:// -tv

Re: [FFmpeg-user] How i can add to my stream browser source (chat, donation alerts, follow alerts etc, like in obs) and create delayed stream (like in obs) with complex filter ?

Please don't top-post on this list stream browser source (chat, donation alerts, follow alerts etc, like in What does that mean? Is that a single graphic overlay or something else? create delayed stream (like in obs) with complex filter? I think you'll find that in the list archive. On

Re: [FFmpeg-user] Fwd: Understanding/preventing buffer overruns

On 7/20/2020 9:57 AM, Simon Roberts wrote: Splitting this into five separate commands, generating five separate output files, running them in background simultaneously, works without any overruns, dropped frames, or any other complaints. This more suggests either a threading/process management

Re: [FFmpeg-user] ffmpeg extract hdmv pgs subtitle from mkv to srt or ssa

On 7/19/2020 9:05 AM, Ramon Brea wrote: Please help. Thanks Please include the complete command line and all of the output. That will help. (and as a pre-reminder, do not "top post" on this mailing list) z! ___ ffmpeg-user mailing list

Re: [FFmpeg-user] Causes of color bars?

On 7/13/2020 8:47 PM, Simon wrote: So now, assuming my logic is sound, my question would be how can ffmpeg detect the connected signal is present (it "knows" which channel is "live") and yet not read the video signal? Decklink boards are _very_ touchy about formats and parameters. Try setting

Re: [FFmpeg-user] Newb Help! Extracting pics from recovered video file/ or repair recovered video file

On 7/13/2020 10:20 AM, frank rizo wrote: I’m not that smart with all this, so, how do i find out that information? with a working video from the same source? ffprobe will report a lot of info about a video file; I find MediaInfo to be useful for that, too. With that, you -may- be able to tell

Re: [FFmpeg-user] Newb Help! Extracting pics from recovered video file/ or repair recovered video file

On 7/13/2020 10:06 AM, Paul B Mahol wrote: This can be done only if we know which codec where stored in file. Yep. Data recovery is always uncertain, whether from a single file or from a hard drive- if you can't find some indicator of what's where, it's all just random data (this is why

Re: [FFmpeg-user] Documentation of chromanr filter

On 7/11/2020 1:39 AM, Paul B Mahol wrote: Can you elaborate what you tried and what failed? Why does it matter??? Someone has gone to the effort to identify a problem and suggest a solution. I'd expect that whomever has been maintaining that code would welcome this and incorporate that

Re: [FFmpeg-user] Compiling on an aarch64 machine

On 7/8/2020 3:24 AM, Verachten Bruno wrote: On Tue, Jul 7, 2020 at 10:49 PM Carl Eugen Hoyos wrote: Am Di., 7. Juli 2020 um 21:34 Uhr schrieb Verachten Bruno : CFLAGS='-mfpu=neon' This is apparently not ignored (I thought it should be) and you are therefore responsible not to set these

Re: [FFmpeg-user] Immediate crash on windows.

On 7/2/2020 6:41 AM, Sam Holder wrote: Any ideas ... how best to proceed with troubleshooting? It's _always_ best to include the entire command line and output when asking for help here, even it there's almost no output. Have you tried that build on another version of windoze? It works

Re: [FFmpeg-user] "Four up" output?

On 6/27/2020 8:53 AM, Simon Roberts wrote: 1) create a composite output that has all four of the inputs laid out one per quadrant, so all can be seen on a single display Google "ffmpeg multiviewer", you'll find a handful of ideas, including this-

Re: [FFmpeg-user] How to merge several segments of a video to the original video?

On 6/25/2020 5:50 AM, mikelee164396 wrote: When I tried to merge, there was an error. See the attachment error.txt for the error content and command line. Please place those in the email body. Very few people will download and open the 7z file. Also, what do the .key and .m3u8 files look

Re: [FFmpeg-user] To Speed Up thumbnail creation - picture & video

On 6/21/2020 10:23 PM, Arunava Banerjee via ffmpeg-user wrote: ffmpeg version 2.8.15-0ubuntu0.16.04.1 Copyright (c) 2000-2018 That version is positively ancient in software terms. First thing is to get a current version (the -git head version is recommended, but at least a 4.2.3 build), start

Re: [FFmpeg-user] timeout error when reading RTSP/RTP incoming audio stream

On Tue, Jun 16, 2020 at 9:45 AM Yannick Barbeaux ^^ (Strange thing though : "Receive your own posts to the list?" is set to "Yes" in my subscription settings and I do not receive them). gmail tends to omit posts that

Re: [FFmpeg-user] Add delay to stream on twitch/youtube/restream.io, add chat and alerts

On 6/15/2020 10:17 AM, Rob Hallam wrote: Is this still true? In OBS, Settings → Advanced there is a "Stream Delay" section (mentioned onhttps://obsproject.com/wiki/OBS-Studio-Overview). The default setting of 20s estimates mem usage of 11MB; I set the option to 120s which increased the memory

Re: [FFmpeg-user] Add delay to stream on twitch/youtube/restream.io, add chat and alerts

(please do not top-post on this list) On 15/06/2020, KoreanFanOfficial wrote: Hello. I want to add delay, chat and alerts to my stream with ffmpeg. How i can do it? On 6/15/2020 3:48 AM, Tom Sparks wrote: Have you looked at OBS[1]? OBS filters can only add a short delay. Add delay- how

Re: [FFmpeg-user] [NVIDIA] Video conversion key frame becomes blurred

On 6/13/2020 4:55 AM, 黑雨天 wrote: I converted the mp4 video clips into key frames, using the above hardware and commands, the video became very blurred after the conversion. The video bit rate is very high and should not be the case. What is the question? We need to see the complete/unedited

Re: [FFmpeg-user] Compression issue using ffmpeg

On 6/12/2020 10:59 AM, Moritz Barsnick wrote: On Fri, Jun 12, 2020 at 16:46:30 +, FFmpeg user discussions wrote: Requesting you to read the entire email and kindly help me in solving this. I'm in urgent need of this fix. And you asked this question a few days ago. ffmpeg -i Input0.mov

Re: [FFmpeg-user] Issue in video compression

Perhaps I'm missing something, but... On 6/11/2020 8:27 AM, Chakraborty, Rakesh via ffmpeg-user wrote: ffmpeg -i Input0.mov -y -fpre ./preset/mp4_Projector.ffpreset -astrict -2 -vsync vfr -acodec copy -vcodec copy -s 1280x720 Output0.mp4 (where's the command output? _always_ post the command

Re: [FFmpeg-user] Concatenate multiple (<10) movies with xfade filter

On 6/10/2020 7:24 AM, Paul B Mahol wrote: On 6/10/20, Nicolas George wrote: Paul B Mahol (12020-06-10): How so it is a bug? xfade needs 2 inputs. concat demuxer gives single output. A filter that "can not work with" the output of another filter, your words, is a bug. Filters should all

Re: [FFmpeg-user] ffprobe different outputs for file input and binary data input

On 6/9/2020 4:56 PM, Ming Tu wrote: Updated to newest version but still has errors, different from before ffmpeg version 4.2.3-statichttps://johnvansickle.com/ffmpeg/ Copyright (c) 2000-2020 the FFmpeg developers built with gcc 8 (Debian 8.3.0-6) You cut the command line, don't do that even

Re: [FFmpeg-user] newbie in trouble

On 6/8/2020 3:59 PM, John Van Ostrand wrote: Instead of using -r 30 try -vf "fps30" Rate setting can be tricky, with multiple options and filters. Some searching of the the list archive should give examples of how to do this. Part of the confusions come with setting input rate vs output

Re: [FFmpeg-user] Wanted: How to limit ffprobe

On 5/29/2020 1:39 PM, Mark Filipak wrote: I want to limit ffprobe to frames zero to 5403. Anyone know how I can do that? Perhaps an undocumented option? How about -read_intervals? z! ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org

Re: [FFmpeg-user] Converting zoom recordings

On 5/26/2020 11:36 PM, Edward Park wrote: I might be wrong but it looks like the example you uploaded is from a session with at least two files, maybe the other named similarly but ending with _02 (or maybe it is incomplete and the next part wasn't saved). I think it is sample buffers

Re: [FFmpeg-user] Converting zoom recordings

On 5/25/2020 7:33 AM, Francois Visagie wrote: It isn't clear why you're concerned with intermediate files, but Zoom has a "compatibility" setting for final output. When I checked a few days, the only output is still mp4. There is an option for "Optimize for 3rd party video editor", no idea what

Re: [FFmpeg-user] yadif-cuda issues

On 5/22/2020 9:33 AM, Kyle Schwarz wrote: You don't even need the build script though, you could easily cross-compile with Cygwin as you really only need the nv-codec-headers. MinGW-64? I've used that build ffmpeg w/ decklink and IIRC it was pretty much without problems once I had the

[FFmpeg-user] Converting zoom recordings

Hello, Does anyone have experience converting zoom recordings from their intermediate file(s) to other formats? The zoom application will convert to mp4 but that becomes difficult if you want to push the conversion to another system, and you still get mp4, no choice on that. (example file

Re: [FFmpeg-user] ffmpeg writing to an audio device on MacOS

On 5/20/2020 10:41 AM, Michael Glenn Williams wrote: ffmpeg version N-79453-g5256250-tessus Copyright (c) 2000-2016 the FFmpeg Have you tried a more modern version of ffmpeg? That one is positively _ancient_. If not, please get the -latest- and try that (start at

Re: [FFmpeg-user] TrueHD Issues/Remux

On 5/17/2020 8:12 AM, Ed Warner via ffmpeg-user wrote: I’m a new user to FFmpeg and having some issues I can’t find answers to.   Here’s what I’ve done I’m trying to accomplish: Ed, a couple of standard things- Please post the complete unedited command output w/ the command line, it contains

Re: [FFmpeg-user] building ffmpeg errors with vc++

On 5/16/2020 11:05 AM, Carl Eugen Hoyos wrote: My personal experience, note that nothing above points to using msvc. Just wanted to know if there some technical reasons I'd overlooked, doesn't sound like it. Some other OS projects that incorporate ffmpeg libs do use msvc, such as CasparCG.

Re: [FFmpeg-user] building ffmpeg errors with vc++

On 5/16/2020 10:53 AM, Carl Eugen Hoyos wrote: Probably unrelated: I strongly suggest to use wsl to compile FFmpeg for Windows. Not to disagree, but what forms that preference? (I use mingw wherever possible and msvc when forced (and from the command line, if possible). And I'm sure I've

Re: [FFmpeg-user] FFmpeg Vulnerable to Denial-of-Service (DoS) via Heap-Based Buffer Overflow in 'cbs_jpeg.c' File

On 5/15/2020 2:00 AM, Moritz Barsnick wrote: On Fri, May 15, 2020 at 08:28:03 +, FFmpeg user discussions wrote: Would like to understand, any plan to fix the to the https://nvd.nist.gov/vuln/detail/CVE-2020-12284 (FFmpeg Vulnerable to Denial-of-Service (DoS) via Heap-Based Buffer Overflow

Re: [FFmpeg-user] FFmpeg single threaded bottleneck

ISTR a thread here not that long ago about threading and hardware acceleration; may want to search that out. z! ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or

Re: [FFmpeg-user] Newbie needs help on capture video/audio using ffmpeg on RPI

On 5/14/2020 7:56 AM, Ram Shaffir wrote: Hmm... any suggestions on how to make it work? A different HW between the GoPro and the PI that does most of the encoding? You will need to do some more research on your own. May be that a different camera, or a different re-coding platform, is needed to

Re: [FFmpeg-user] Deinterlacing VHS

Was the the original capture compressed at all? Digitizing, especially from VHS, is a challenge. Best is to take the YC output from the deck, push it through a TBC/proc-amp into the capture device, and record that with no compression. If a TBC isn't available, at least don't compress the

Re: [FFmpeg-user] Newbie needs help on capture video/audio using ffmpeg on RPI

Hello, On 5/11/2020 2:05 PM, Ram Shaffir wrote: No, you are not missing anything, I had many many different tests and all were with poor results, This is still missing the _command_output_, please post that. Are you testing with the latest build for the r-pi? Also, do not top-post on this

Re: [FFmpeg-user] yadif mode 1 duplicates first two frames and hence causes lip-sync error

On 5/11/2020 10:04 AM, Bruce Roberts wrote: Thanks for getting back to me. I have tested with "ffmpeg version 96de7bf8df Copyright (c) 2000-2017 the FFmpeg developers" which, if not the latest version, is only a month or two old and the result is exactly the same. The copyright date suggests

Re: [FFmpeg-user] Newbie needs help on capture video/audio using ffmpeg on RPI

On 5/11/2020 5:12 AM, Ram Shaffir wrote: I tried some different ways to capture this. Still, my quality results are poor, and no audio or the audio is out of sync and video is choppy, another issue is that when I try to use the hardware acceleration codec h264_omx I get very low quality

Re: [FFmpeg-user] Decklink output latency, high

On 5/9/2020 12:21 PM, Marton Balint wrote: 1) The most significant is probably input probing. I suspect the decklink part is a red herring, playback from a file to the decklink shoudl have almost no latency, certainly not 3+ seconds (doing a gdi screen capture to decklink is under 1 second

Re: [FFmpeg-user] multiple bitrates with different logos

On 5/7/2020 6:56 PM, Edward Park wrote: Are the logo png files transparent and same size as the video frame size? If so you can use the overlay filter with the logo file as second input. And if not, it's easy enough to resize/reposition and add an alpha channel if missing. That may be way

Re: [FFmpeg-user] Missing ')' or too many args in 'between(t'

On 5/6/2020 5:49 PM, Ulf Zibis wrote: I'm wondering, why the escapes are not needed on Windows. Different shell (and parser), I expect. z! ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To

Re: [FFmpeg-user] libfdk_aac: Unable to initialize the encoder

On 5/4/2020 8:02 PM, Abu Abdullah wrote: Please find the output: E:\AudioCataloger\bin_X>ffmpeg -i 010.rm -c:a libfdk_aac -profile:a aac_he -b:a 16k -movflags +faststart -af aresample=async=1000 010.m4a ffmpeg version N-97389-g13171ad2e3-sherpya Copyright (c) 2000-2020 the FFmpeg developers

Re: [FFmpeg-user] Problem with recorded YouTube stream

On 5/1/2020 3:18 PM, H wrote: So you are saying that despite knowing the settings youtube-dl used when recording the file, it is not possible to use that knowledge when using ffmpeg to play the file back (barring damage while recording the file which I have no evidence for)? You may know certain

Re: [FFmpeg-user] How to set preview of video?

Hello, First off, please do not top-post on this mailing list, and you also need to include the entire command output with the question and use an up-to-date ffmpeg (see https://ffmpeg.org/mailing-list-faq.html). On 4/29/2020 12:53 PM, Cemal Direk wrote: i added sample screenshot. Which

Re: [FFmpeg-user] FFMPEG Problem in macOS

Hello, On 4/27/2020 7:12 AM, Chakraborty, Rakesh via ffmpeg-user wrote: We have a MacBook application which has a screen recording feature as well as capturing the user from Camera (In-built MacBook Camera or any external Camera) who is using that application. What is the application and

Re: [FFmpeg-user] change inputs or mapping while recording

On 4/24/2020 1:50 AM, Stephan Monecke wrote: Is there any sane way to do this with ffmpeg? Or how would you recommend doing it? You need something like OBS Studio (free, works well) to do this. z! ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org

Re: [FFmpeg-user] Problem with recorded YouTube stream

On 4/22/2020 10:39 AM, H wrote: I downloaded the latest version for CentOS 7 from the ffmpeg website after your first e-mail and my two previous posts were based on that. And that is not the _latest_ ffmpeg (forget about "for centos", it's not). All of these errors say the basically the same

Re: [FFmpeg-user] Problem with recorded YouTube stream

On 4/22/2020 7:40 AM, H wrote: Yes, I was using the latest version of youtube-dl from the CentOS 7 repository. On 4/22/2020 9:15 AM, Edward Park wrote: But your newest version of ffmpeg is still pretty old, you should try with an up-to-date version first, it probably has as much of a chance

Re: [FFmpeg-user] Problem with recorded YouTube stream

On 4/20/2020 11:42 AM, H wrote: I am running ffmpeg 2.8.15 under CentOS 7, the latest version released for that operating system. First- that version is positively _ancient_ and not supported at all. Download a current linux build as linked from https://ffmpeg.org/download.html and try

Re: [FFmpeg-user] ffmpeg architecture question

On 4/18/2020 2:08 AM, Paul B Mahol wrote: On 4/18/20, pdr0 wrote: Mark Filipak wrote Gee, pdr0, I'm sorry you took the time to write about 'interleave' not working because it is working for me. Interleave works correctly in terms of timestamps Unless I'm misunderstanding the point of this

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

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. While this is technically true, note that it has absolutely no relevance for users of FFmpeg (including library

Re: [FFmpeg-user] ffmpeg architecture question

Sigh. On 4/17/2020 5:39 AM, Mark Filipak wrote: On 04/17/2020 06:34 AM, Monex wrote: Please do not use complicated phrases or words like "germane" - many ffmpeg-users are not native English speakers and you are causing confusion; it is not necessary on a technical list. Actually, they

Re: [FFmpeg-user] Preparing to compile ffmpeg from git source -- stuck

On 4/12/2020 4:25 PM, Carl Eugen Hoyos wrote: This will not work for Mark. It probably would if he used mingw and wanted BMD support. If he doesn't, then course it wouldn't. I expect that Mark could understand that. (Why on earth do you need --static for a Windows build?) Because I want

Re: [FFmpeg-user] Preparing to compile ffmpeg from git source -- stuck

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 be compiled from within Linux. FWIW, I build on a windows box in

Re: [FFmpeg-user] Encoding Settings

On 4/12/2020 7:17 AM, K J wrote: What missing information do you need? I have given all the information I have. The entire command output(s). And not to top-post, please. z! ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org

Re: [FFmpeg-user] Flutter FFmpeg

On 4/12/2020 4:27 AM, a a wrote: However when i test this on IOS (Iphone SE) the imagepicker seems to compress the video first e.g. 150MB to 25MB. Which I then attempt to compress the 25MB again with above command with params "veryfast" and 18. The file always gets larger that the original

Re: [FFmpeg-user] ffeserver question

(I mistakenly didn't send this to the list, only to the OP; repeated here for the archive) Hello, On 4/9/2020 7:20 AM, Долгих Алексей Юрьевич wrote: Recently I tried to migrate ffmpeg v. 2.8.15 to 3.4.7 (latest build with ffserver, as far as I know) From

Re: [FFmpeg-user] Works in ffmpeg-git, doesn't in ffmpeg 1:4.2.2-5

On 4/6/2020 6:59 PM, Kai Hendry wrote: For several months as an Archlinux user, kms screen capture has been broken in the standard ffmpeg package. The resolution of the ticket was "invalid", but the problem remains, that the ffmpeg release doesn't work. So how can I help get a stable

Re: [FFmpeg-user] Please help confirm if this hard, system crash is reproducible

On 4/6/2020 3:53 AM, Moritz Barsnick wrote: It is correct: Even if not correct, wrong/whacky cmd line parameters shouldn't cause a hard crash. (Later email suggests this might be platform-dependent.) z! ___ ffmpeg-user mailing list

Re: [FFmpeg-user] Search Archives

On 4/2/2020 8:44 PM, d...@topekadesign.com wrote: Is there a way to search the complete list archives? I am absolutely certain my answer is in the archives and I don't want to ask what I am sure is a fairly common question. Google does fairly good job- include 'ffmpeg-users' or

Re: [FFmpeg-user] BT.709 -color_primaries -color_trc -colorspace ?

On 3/30/2020 2:24 AM, Phil Rhodes via ffmpeg-user wrote: On Monday, 30 March 2020, 09:46:22 BST, Paul B Mahol wrote: Please spare us from more such pointless threads. Well, I guess that's been pretty much the overall attitude to issues with the colour handling in ffmpeg for years. And

Re: [FFmpeg-user] lagfun misunderstanding?

On 3/29/2020 10:38 AM, Paul B Mahol wrote: On 3/29/20, Michael Koch wrote: ffmpeg -i IMG_1685.MOV -filter_complex "format=rgb24,extractplanes=r+g+b[r][g][b];[g]lagfun=decay=0.999[gg];[gg][b][r]mergeplanes=0x001020:gbrp" -t 5 -y greenlagtest.mp4 You are over complicating things. OK, how?

Re: [FFmpeg-user] Vaapi Scaling on Belkin Z85 is not working

On 3/25/2020 8:00 AM, halise wrote: [h264 @ 0x5643ff5d1d80] co located POCs unavailable [h264 @ 0x5643ff636b80] co located POCs unavailable [Parsed_scale_vaapi_2 @ 0x5643ff5d53c0] Failed to create processing pipeline config: 12 (the requested VAProfile is not supported). [Parsed_scale_vaapi_2 @

Re: [FFmpeg-user] Converting Quicktime (.mov ) from iPhone to mp4

On 3/24/2020 9:05 AM, Peter Alderson wrote: How do I stop top-posting? Check the docs for your email client or google it? If you're using gmail in a browser, click on the three dots at the bottom to expand the quoted text, then edit from there. And if you haven't already, take a look at

Re: [FFmpeg-user] Converting Quicktime (.mov ) from iPhone to mp4

On 3/24/2020 8:21 AM, Peter Alderson wrote: It’s whathttps://www.ffmpeg.org/ is Downloading today ! Please give the link which is doing that; I just checked the MacOS sites and they all have up-to-date builds. Note that the ffmpeg site says "FFmpeg only provides

Re: [FFmpeg-user] Converting Quicktime (.mov ) from iPhone to mp4

On 3/24/2020 8:02 AM, Peter Alderson wrote: FFmpeg version CVS, Copyright (c) 2000-2004 Fabrice Bellard You might start with a newer version of ffmpeg- in computer years, that's pre-dinosaur age. z! ___

Re: [FFmpeg-user] Selecting MPEG TS child streams for filter_complex

On 3/16/2020 3:30 PM, Lou Logan wrote: Simple reason I usually list them in that order is because it is easier and more logical for me to process it in the form of: inputs -> filters -> output Accepted that it's convenient although -filter_complex (global) is a different beast than -filter

Re: [FFmpeg-user] Selecting MPEG TS child streams for filter_complex

On 3/16/2020 6:24 AM, Gyan Doshi wrote: -filter_complex is a global option, so parsed first, then input files, then the complex filtergraphs are set up, then output files. Is there any reason, then, not to always put -filter_complex as the first parameters of the command line? The Synopsis

Re: [FFmpeg-user] email line wrapping (was Re: How to compress .MOV file ...)

On 3/13/2020 9:25 AM, Reino Wijnsma wrote: On 2020-03-12T02:49:02+0100, Mark Filipak wrote: [...] since my own submissions are not echoed Log in tohttps://ffmpeg.org/mailman/options/ffmpeg-user. Set "Receive your own posts to the list?" to "Yes". That does not always work when the sender

[FFmpeg-user] email line wrapping (was Re: How to compress .MOV file ...)

On 3/11/2020 6:21 PM, Mark Filipak wrote: Thunderbird, for example, wraps text at 70 chars when sent. I believe the 70 chars cannot be changed. In Options, Advanced, General, Config editor- set mailnews.wraplength to the desired wrap distance. OTOH, it's probably not a good idea to make this

Re: [FFmpeg-user] I want to use FFmpeg in commercial product. Who do I need to contact?

On 3/11/2020 9:06 AM, Carl Eugen Hoyos wrote: They sued because no source code was provided, the question was if you are allowed to charge money for providing a binary of free software. IIRC, the issue of charging for the s/w was discussed in those suits (which weighed on the award of money

Re: [FFmpeg-user] I want to use FFmpeg in commercial product. Who do I need to contact?

On 3/11/2020 8:40 AM, Ted Park wrote: I’m just curious, but if this kind of question was posed to a less-than-scrupulous party, and they sell the querier a compatible binary and source with the GPL license, is there any way to be recompensed if he/she finds out it could have been obtained for

Re: [FFmpeg-user] I want to use FFmpeg in commercial product. Who do I need to contact?

On 3/11/2020 8:04 AM, Dennis Mungai wrote: This response should be a wiki entry. We’ve seen multiple queries on the same topic on this list, and this response summarizes it perfectly. Definitely. Now if people would only read it (and the FAQ). z!

Re: [FFmpeg-user] unsubscribe

On 3/9/2020 3:24 PM, Reindl Harald wrote: idiot what is that difficult to follow the instructions of each and every fucking mail at the bottom? if you are not capable to handle a mail client don't use it He says while top-posting. z! ___

Re: [FFmpeg-user] How to identify the format of a video file with no extension?

On 3/8/2020 8:15 AM, Carl Eugen Hoyos wrote: Am 08.03.2020 um 14:50 schrieb Stanislas Defawes: I think you better use Mediainfo for that Why? If you have a video file that cannot be detected with FFmpeg, please share it! The OP didn't say that ffmpeg wouldn't do the job, they asked an

Re: [FFmpeg-user] FPGAs

On 3/4/2020 7:39 AM, Paul B Mahol wrote: Not 100% correct. Which part? (And does it need to be, anyway? Analogies often aren't but still get the points across.) z! ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org

Re: [FFmpeg-user] CPU and GPU

On 2/26/2020 5:01 AM, Carl Eugen Hoyos wrote: Am Mi., 26. Feb. 2020 um 07:31 Uhr schrieb Ted Park : Just for completeness, there is now the Afterburner card dedicated to ProRes decode and render (not a GPU), but a Mac Pro is the only platform that supports it and if you have that setup,

Re: [FFmpeg-user] concat protocol - 3 objectives

On 2/24/2020 4:29 PM, Mark Filipak wrote: Regarding Objective 3: Though a subtitle stream is not reported, the 5 concatenated sources do have subtitles. However, I think I have to get a matroska container working before attempting to include the subtitles, so this objective will have to wait.

Re: [FFmpeg-user] List server 'myposts on' fails to echo my own posts

On 2/24/2020 6:55 AM, Tom Horsley wrote: Briefly back on topic: I subscribe to all my mailing lists with two different gmail addresses. One of which I send mail with (but tell the mailing list manager never to deliver mail to) and one which I subscribe to the list on (but never send mail with).

Re: [FFmpeg-user] List server 'myposts on' fails to echo my own posts

On 2/23/2020 7:29 PM, Mark Filipak wrote: There are 3 reasons why that can't be correct and that the problem is with the ffmpeg-user list server (probably configuration): 1, Other lists that use mailman work as intended (i.e., I get my own posts echoed back to me, for example:

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