Re: [FFmpeg-user] Regarding ./configure and nonfree
On 9/10/2024 1:39 PM, Reindl Harald wrote: What exactly in "nonfree" is not clear? ...most of it unless you dive into the various licensing pages and divine the meaning _in context_ of "non-free". Or, it was a reasonable question for the OP to ask. For the OP- There are a lot of "it depends" about which pieces of ffmpeg are licensed by LGPL/GPL2/GPL3/etc, and also whether you're statically or dynamically linking to the various libraries. You'll have to look which specific pieces you want to use (or exclude). (IMHO, the first part is to decide which containers/codecs/filters/etc you want and exclude all the rest.) And, of course, read the ffmpeg licensing page. There is commercial software that includes either ffmpeg libraries or the full package, but under conditions such as making all the source code available or sometimes by running an ffmpeg executable with data piped in/out of it. z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] The future of video
On 7/17/2024 12:43 PM, Mark Filipak wrote: frame; some projectors would use a three-blade shutter to get supposedly smoother-looking motion. Actually, z!, a double or triple shutter doesn't improve motion. It reduces/eliminates perceived flicker. Please read that again, I did not say it "improves motion"; it does certainly improve the perception of flicker. z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] The future of video
On 7/17/2024 5:46 AM, Oliver Fromme wrote: The typical cinema frame rate (23.976 fps) is the minimum that's commonly accepted, In a real film cinema it's an exact 24fps however the shutter is quartered so there are two flashes per frame; some projectors would use a three-blade shutter to get supposedly smoother-looking motion. z! former 35mm projectionist (and assisted w/ 70mm) ___ 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 "unsubscribe".
Re: [FFmpeg-user] [Ffmpeg-user] Issue converting RTSP stream to HLS with partial audio on source
On 7/9/2024 3:53 AM, Rui Gabriel Nunes via ffmpeg-user wrote: For reference, this is the ffmpeg command we are using at the moment: ffmpeg -probesize 5 -analyzeduration 5 -rtsp_transport tcp -i "rtsp://" -c:v copy -c:a aac -hls_flags append_list+split_by_time+omit_endlist -hls_segment_filename "_%03d.ts" -hls_time 1 -hls_list_size 0 ".m3u8" (command output missing) We've tried -c:a with the appropriate codec instead of aac, but it produced no result. Can you add another audio stream from a silent audio source mapped into an unused channel? Or if you're re-coding the audio anyway, mix a silent stream into one of the real output streams. z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] issues with SDI output to Dektec cards
On 7/3/2024 9:11 AM, Izhar Marinov wrote: Has anyone had any experience with SDI output to Dektec device? It seems to be working initially but the output delay to the SDI grows by a few seconds per minute, eventually the circular buffer fills up. I had a similar problem with BMD Decklink cards (on windoze), but haven't tried it in the last couple of years and didn't spent much time looking for the cause; the output was fine using other software. Just guessing here- if frames are being decoded at non-drop-frame rate but they're being pulled out of the buffer at the drop-frame rate, you'd have some apparent delay and eventually run out of space. That wouldn't necessarily account for multiple seconds delay per minute, only a frame or so per minute. (Or decoding at 30fps and outputing at 25.) Perhaps forcing the decode and output rates might help. I don't know about the Dektec boards, but the BMDs are a bit sensitive to the rate settings. z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] Resolve (was Re: key frame)
On 6/29/2024 7:00 PM, Mark Filipak wrote: Everything is down to what your router does. Which in the vast majority of small installations (e.g. homes) is _also_ working as a NAT device and performs some filtering and basic firewall functions. Or, at least I hope the device you have does, it's hard to get one that doesn't. The world knows you by the IP that your ISP has assigned. Sure, call it 198.3.160.206/24 (outside interface). Let's then assume that the inside interface of the firewall is 192.168.12.1/24 and the systems A & B are on .11 and .12. The only way that A or B are not publicly addressable is if you're not connected to the Internet. Not correct if they are using RFC1918 addresses when pretty much by definition they are not "publicly addressable". If you have a single system directly connected to the ISP (without NAT/etc), then yes, that system will get the 198 address and be publicly accessible, but that's only ONE system. The only way for A and B to both be publicly addressable is if the ISP gives each on a separate IP and if routes exist to them. BTW, "publicly accessible" means that datagrams from anywhere outside can be routed to a specific system, not that the system can send datagrams outbound. 192.168.0.xxx does not route to the Internet. More correctly, the router does not have a _route_ for that network and even if it did, the next hop would black-hole the datagrams. Do those 4 statements fit together in your mind? If not, ask. Looked like 3, but never mind that. ...this is networking 101... Yes, please study it, you seem to be mistaken in how things work and general network engineering practice. z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] Resolve (was Re: key frame)
On 6/29/2024 5:37 PM, Mark Filipak wrote: The firewall is between them and the OS networking. The firewall is between your ISP's terminal device and your PC's network interface, and it's probably also performing routing and NAT; many people call it just a router, but it's also performing other functions as well. Check out it's functionality. If you're simply depending on the PC's "firewall" software, you're not following the accepted practices. Oh, and "non-routable addresses"? see RFC1918. z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] Resolve (was Re: key frame)
Mark Filipak wrote in various messages: Open ports shine on the Internet like stars in the sky. Open ports want to be found. How does the world see those ports _inside_ your firewall? Please explain. (You do have an Internet firewall, don't you? Which one?) Blackmagic was created to compete with Red. Red is solid. Blackmagic is a barefoot mother. Uh, no. BMD was formed in 2005 with the Decklink cards and some converters, their cinema cameras didn't come out until around 2012. The converters and switchers are quite solid, AFAICT so is Resolve. 1 - Blackmagic is not reprogramming routers to allow ports into LANs. Ports are allowed in by default. What -are- you talking about? If your network firewall is allowing some ports inbound, that's not the application software's problem. Likewise, a web site that looks for open ports can only see what that firewall allows. (I think the only in-bound connections I allow is ssh on a non-standard port, wireguard vpn, and? no, that's about it. In-bound responses are allow when matched with outbound traffic. That's pretty standard stuff.) Now let's get to non-routable IP addresses, like the 192.168 range. If you're using those and they're properly filtered out there won't be inbound traffic to those ports, and outbound with NAT's addresses can be easily blocked if you want. This is a non-problem to the vast majority of users and networks. FWIW Resolve uses a database approach to its projects. (Avid uses files (bins aka .avb files) as does Premiere. That likely accounts for at least one of the open ports if not more I think you're referring to collaborative software, not databases. And under the collab software is a Database!!! (even sqlite is a database, and a pretty good one, too; most cell phones and web browsers are using it.) Yup, trust me, I'm from Blackmagic. Are you a convenience fool? If so, you don't get on my LAN. Again, your loss. And your "walled garden" metaphorically has a couple of large holes in it. If you don't want to use Resolve, that's fine with pretty much everyone else, just don't go throwing up nonsensical reasons and pretending that they're fact-based. z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] Resolve (was Re: key frame)
On 6/29/2024 12:56 PM, Mark Filipak wrote: I did. That's why I decided not to use it. Your loss. z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] Resolve (was Re: key frame)
On 6/29/2024 12:46 PM, Paul B Mahol wrote: I have no respect to anything called 'Blackmagic'. That's fine, but then it appears that you're not familiar with the video production industry - BMD products are all over. Perhaps you also can't respect anything from "Grass Valley" or "Decimator", or maybe the Ross Systems "Carbonite" line of switchers. There's more to it than just a name :). BTW, Blackmagic bought da Vinci Systems around 15 years ago to get the Resolve color correction software; it's been around for a long time. I don't work for any of those companies, but I've worked with their products for years, they're solid. z! ___ 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 "unsubscribe".
[FFmpeg-user] Resolve (was Re: key frame)
On 6/28/2024 4:07 PM, Mark Filipak wrote: I have to consider Blackmagic DaVinci Resolve to be a virus hub that is probably selling access to my system through those ports to outside clients. You're welcome to consider it such, but that doesn't make it so. BMD is a rather old and respected company, if you're concerned about the open ports in their _free_ software you're welcome not to use it. Or welcome to block those ports, or to even ask BMD why they're open? Right in some BMD notes for v19-- Setting up Remote Monitoring over IP connections on the Resolve Clients [...] Firewall exceptions and appropriate port forwarding will need to be manually configured in order to use this mode. The procedure to initiate a session and accept connections remains the same. This mode uses TCP server port 16410 and TCP/UDP port 16411, 16412, etc. for each client. (Took me a only a few minutes to find that.) They also use some ports for collaboration and probably for license management; can't blame them for that, can we? Before quickly trashing some well-respected software, please do a little research. z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] key frame
On 6/27/2024 4:21 PM, Paul B Mahol wrote: Difference between I-frame and key frame is so subtle that is not relevant for your project. What are they? They may be relevant to another project. z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] I found the bugs
On 6/25/2024 11:20 AM, Mark Filipak wrote: What are you arguing about, z!? Do you not believe that VLC plays Track_11055.m2ts? Sigh, read it again. You asserted without foundation that VLC does "do not depend on ffmpeg" and I pointed out that it does. Nothing more, nothing less. You also asserted in an email that something works with two players but did not say which ones _in that email_, but rather depended on readers to trace back to another source for that into. z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] I found the bugs
On 6/25/2024 10:39 AM, Mark Filipak wrote: VLC and PowerDVD. VLC? Right in their credits they list ffmpeg (along with many other OS projects). It's at the top of the trac page, in the "Summary of the bug". Do you see it, z!? Did you put it in the email that I was quoting? No. In the trac comment? No. z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] I found the bugs
On 6/25/2024 9:53 AM, Mark Filipak wrote: On 25/06/2024 12.28, Carl Zwanzig wrote: On 6/25/2024 8:51 AM, Mark Filipak wrote: https://trac.ffmpeg.org/ticket/11055#comment:173 Ticket_11055.m2ts plays correctly and completely by two players that do not depend on FFmpeg. Which ones? That's part of traceability (and proper bug reporting). That's at the top of the trac page. It is not. That doesn't tell anyone which two _players_! z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] I found the bugs
On 6/25/2024 8:51 AM, Mark Filipak wrote: https://trac.ffmpeg.org/ticket/11055#comment:173 Ticket_11055.m2ts plays correctly and completely by two players that do not depend on FFmpeg. Which ones? That's part of traceability (and proper bug reporting). When are we going to get on with the job of troubleshooting the FFmpeg timestamp bug? When people feel like expending their own time on it? Remember it's a volunteer project... Or having spent so much time and effort to uncover a but, you could spend a little more time learning enough 'c' to read the code, that shouldn't be difficult for someone who IIRC has professed experience in real time programming of micros. Here are a couple of places to learn- https://github.com/balapriyac/30-Days-of-C https://www.geeksforgeeks.org/c-programming-for-beginners-a-20-day-curriculum/ z! "C combines the power of assembly language with the flexibility of assembly language." --me, c1982 (using the DECUS compiler on DEC's RT-11) ___ 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 "unsubscribe".
Re: [FFmpeg-user] I found the bugs
On 6/19/2024 11:19 AM, Mark Filipak wrote: From the sound of it, this _is_ a normal/medium (or even "low") severity bug in that it doesn't affect the vast majority of ffmpeg use. How do you know that, Carl? Address me as I sign my email and no other way; that's why it's there. How to I know? From what I've read this potential bug affects very little of how ffmpeg actually operates; if it had, it's likely that the regression tests (aka FATE) would have shown many errors. This opinion come from a few decades of software engineering, both development and testing. Maybe it affects every FFmpeg use. Then demonstrate it (by providing other seemingly unrelated tests cases that all fail and can be traced to the single error). Or assume that the developers know better than we do and accept whatever priority they set. And maybe also assume a less confrontational attitude, telling someone that they're "Wrong" at best sends an impolite message. z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] I found the bugs
On 6/19/2024 9:51 AM, Mark Filipak wrote: Thank you for the 'guide' but neither 'important' nor 'normal' are in that guide. The interpolate using normal English! I can only say that if you take all the timestamp bug reports (which may all be from the same cause) and total them together, it's not "normal". Bug priority (and severity, if separate) have nothing to do with whether the behavior is "normal". Since Trac only has priority, it applies to how quickly the bug should be addressed; I'm sure that's discussed in the link I sent. Read the page http://trac.ffmpeg.org/ and follow "Please read the _Bug Tracker Manual_" link, you'll see an explanation of priority. Please put as much effort into how to report issues as you do in discovering them. z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] I found the bugs
On 6/19/2024 6:22 AM, Mark Filipak wrote: MasterQuestionable has downgraded the timestamp bug from 'important' to 'normal'. Yes, and??? From the sound of it, this _is_ a normal/medium (or even "low") severity bug in that it doesn't affect the vast majority of ffmpeg use. There is often a give and take around this between the bug reporter and the developers, and that's a war nobody wins (don't try). For those unclear on the use of severity, there are many guides to this online (e.g. https://gathelp.zendesk.com/hc/en-us/articles/360010618340-Bug-severity-guide). z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] Top-posting (was Re: I found the bugs)
On 6/16/2024 7:02 AM, Bouke / edit 'B wrote: You are feeding a thread that should not exist, so you, z!, are also feeding trolls. A thread that -I- created for a real problem, along with a reason why isn't a problam and with a solution. Deal with it. Stop, just stop. Please do. And stop top-posting. z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] I found the bugs
On 6/16/2024 6:54 AM, Phil Rhodes via ffmpeg-user wrote: Isn't that a statement which fundamentally undermines the entire concept of ffmpeg as an open source project with willing developers... More than a few OS projects have professional (and paid, they're not the same thing) developers. Nothing wrong with it. z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] Top-posting (was Re: I found the bugs)
On 6/16/2024 6:58 AM, Bouke / edit 'B wrote: Do not feed trolls. How is calling out the use of top posting "feeding the trolls"? (It isn't.) z! ___ 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 "unsubscribe".
[FFmpeg-user] Top-posting (was Re: I found the bugs)
On 6/16/2024 2:33 AM, Binarus wrote: to solve your problem. ... for the same reasons that annoy you However, your behavior ... Do you really ...to communicate with you I strongly advise you to - You do not have etc We only find out who "you" might be until we read down through 50+ lines of message. Top posting is only useful if the new material stands alone, at which point any quoting is extraneous and ought to have been removed. Just don't do it (top post). z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] I found the bugs
On 6/15/2024 1:30 AM, Paul B Mahol wrote: What you even mean with above unclear statements? Perhaps you might read the last 8-10 messages as Jim attempts to decipher it. z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] ticket/11055 FFmpeg reports inconsistent PTS, DTS between 3 invocations [was: Re: I found the bugs]
On 6/14/2024 5:31 PM, Mark Filipak wrote: You see. This is the type of discussion that needs to occur _before_ a bug report is filed. Respectfully, no. Unless you had filed the bug, we wouldn't be having it now. Perhaps it would have been better if you had read the filing guidelines and learned about bug reporting in general much earlier. z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] I found the bugs
On 6/12/2024 2:44 PM, Mark Filipak wrote: I need someone more knowledgeable about FFmpeg to triage. They're often called 'developers'. For example, Perhaps the sequence header has some information that conflicts with my cuts (the way cutting out a lone open B-frame turns an ending open GOP into a closed GOP but there's no way to set the 'closed_gop' MPEG tag to '1'). That's not how bug reporting works in any place I've worked. _You_ file the bug with all the info you have. The person it's assigned to, or the person who takes it, investigates to see what's really happening (and maybe asks follow-up questions). Maybe there's an open/closed GOP thing that only happens when there's an 'X' in the file name and the moon is full. fine, is it reproducible and interesting enough for someone to analyze and look for the error? It's also possible that things are working as designed and the developer response will say that. The other option is just sitting on the info and if there really is a problem allowing it to not be fixed. Your choice. z! who once found a bug in borland libc mktime() that occurred when tm_mon=2 and tm_mday=29 but only on an actual leap year ___ 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 "unsubscribe".
Re: [FFmpeg-user] WebM & Opus Question
I might be confused here, but... On 6/12/2024 11:15 AM, Vlad Negru via ffmpeg-user wrote: ffmpeg -i Input.webm -c:a copy Output.opus > Stream mapping: > Stream #0:0 -> #0:0 (copy) On 6/12/2024 11:57 AM, Ferdi Scholten wrote: You need to have a version of the opus encoder that is specifically compiled to use fixed point How does an encoder become involved if copying the stream? It appears that the encoder metadata is different between the in and out files, could that be the real issue? in: encoder: google/video-file out: encoder: Lavf61.1.100 Later, z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] I found the bugs
On 6/12/2024 11:35 AM, Mark Filipak wrote: If no one corroborates my findings, I can't proceed with a bug report. Why not? Nothing about that in https://ffmpeg.org/bugreports.html. Usually one person files the bug report then interested parties try to reproduce as a path to fixing it; or they can't repro it and either ask for more into or simply say "unable to reproduce" and ignore it. z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] amix vs amerge / how to
On 6/8/2024 5:46 PM, Media Mouth wrote: ffmpeg version 3.1.11 Copyright (c) 2000-2017 the FFmpeg developers First thing is to get a modern version of ffmpeg, that one is positively _ancient_. (And also not to top-post on this mailing list.) Later z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] Low FPS with H.264 Encoding When Using -pix_fmt yuv420p
Hi, On 5/22/2024 11:16 AM, Lisa wrote: ffmpeg version 4.0.6 Copyright (c) 2000-2020 the FFmpeg developers First thing is to try a modern version of ffmpeg, that one is positively ancient and pretty much unsupported. Later, z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] ffmepg mipi csi video cpature
On 5/22/2024 5:09 AM, Nikhil via ffmpeg-user wrote: i have updated from 4.x to 5.0 here is the output requested Save some hassle and get a 7.x version. (Or at least 6.x.) z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] Low FPS with H.264 Encoding When Using -pix_fmt yuv420p
Please post the complete command output with all the options and error messages, otherwise it's only guessing (see section 6 of https://ffmpeg.org//mailing-list-faq.html). z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] Generate log keeping information appearing on screen
On 5/1/2024 7:55 PM, CMG DiGiTaL wrote: How do I generate the log, but keep the conversion information on the screen as well? (really a windoze question, not ffmpeg) cmd.exe doesn't have an equivalent of the unix 'tee' command, but powershell does-- PS C:\Users\cpz> echo "asdsasad" |tee asdf.txt asdsasad PS C:\Users\cpz> type .\asdf.txt asdsasad PS C:\Users\cpz> z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] Mpegts multiplexer problrems, incorrect work of -muxrate option
On 4/5/2024 11:24 AM, Odessa TV wrote: But it is not text, it is pictures, Can I paste pictures to the body of the email? We don't know that it's pictures without a description of them (missing) and often people include screenshots of the command output instead of the text (also missing). As far as I remember, there were some restrictions on inserting objects into the text. Or am I wrong? This is really a text only mailing list although you can -attach- some files. Please read the mailing list FAQ at https://ffmpeg.org//mailing-list-faq.html, especially section 6.1. z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] Mpegts multiplexer problrems, incorrect work of -muxrate option
On 4/4/2024 12:17 PM, Odessa TV wrote: Link to screenshots: Please just copy/paste the text into an email. It usually takes up less space and is searchable. z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] Loudnorm filter changes bit depth
On 3/23/2024 11:06 AM, Paul B Mahol wrote: loudnorm is low quality filter, do not use it. What do you suggest instead? z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] Streams
On 2/29/2024 3:43 PM, Mark Filipak wrote: Well, the attachment, which was only 50kB, got stripped off. I'm trying again. Probably because it's HTML. Just drop the text in the email or include a link to the page. z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] ISSUE ABOUT libmp3lame AUDIO CODEC
On 2/29/2024 8:09 AM, Hervé ANSELME wrote: Is this because my command line is missing some parameters, and if so, which ones ? Hard to tell because you haven't included the _complete_ command line. Don't hesitate to let me know if you need any further technical information ; thank you in advance for your advice and help. As before, always post the complete and uncut command and output (as _text_ in the email, not an attached image). See the FAQ at https://ffmpeg.org/mailing-list-faq.html z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] ISSUE WITH LIBX265 CODEC
On 2/27/2024 10:55 AM, Herv� ANSELME wrote: and here are the technical infos, displayed by the program, in the DOS window : Please just cut/paste the output into the email, no images, no attachments (also read the mailing list FAQ https://ffmpeg.org/mailing-list-faq.html). z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] How to create error log file ffmpeg Loudnorm?
On 2/24/2024 9:16 AM, CMG DiGiTaL wrote: [NULL @ 02738af86200] Unable to find a suitable output format for 'file=log.txt:level=16' file=log.txt:level=16: Invalid argument "log.txt:level=16" is not a valid filename here (you're on windoze, I assume), you may need to escape the colon or the entire arg. And what are the *'s doing in that script? Always start by posting the complete ffmpeg command and unedited output, that way we don't have to guess about what the script is doing. z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] Trouble with ffmpeg ... -f tee and specific encodings per output
On 2/22/2024 12:11 AM, Nicolas George wrote: Then the tee muxer is not suited to your needs. To expand on that 21.53- "[Tee] is different from specifying several outputs to the ffmpeg command-line tool. With the tee muxer, the audio and video data will be encoded only once." You need to use multiple output URLs and format options. Make a critical read of the first few sections of the doc (https://ffmpeg.org/ffmpeg-all.html) and also see http://trac.ffmpeg.org/wiki/Creating%20multiple%20outputs z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] FFmpeg Architecture
On 2/13/2024 8:37 AM, Carl Zwanzig wrote: "read time" reaL time z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] FFmpeg Architecture
On 2/13/2024 12:24 AM, Paul B Mahol wrote: Even if implemented properly it will not make real-time not working. FFmpeg does not have real variable filter chains. Everything is static, there are only filters that can be auto inserted once in a while. Granted, AFAICT much of how ffmpeg is used is very much not "read time" as commonly understood in the computing/process-control world. it would be interesting if the filter chain could be modified conditionally, on a frame-by-frame basis, but that would definitely require some work. But a lot of this discussion hinges around a very nebulous idea of what any "scripting" would do, and without a better understanding of that it's hard to have meaningful discussion. And. much of what might be considered "scripting" looks what others call using an "edit decision list" (EDL), and there are multiple ffmpeg-based packages that already implement those (e.g. OpenShot, Shotcut, Cinelarra etc) and with a nice UI :). Later, z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] FFmpeg Architecture
On 2/12/2024 3:31 PM, Bouke / Videotoolshed wrote: Go away, or at least shut up. I encourage you do do that if you can't add to the conversation. z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] FFmpeg Architecture
On 2/12/2024 2:59 PM, Paul B Mahol wrote: I doubt anything above applies to FFmpeg, also I doubt it makes difference for real-time streaming. Hmm, actually it looks like a lot of it could apply if implemented properly (there are a fair few video programs which implement some form of scripting, OBS for one). And from the right angle, the variable filter chains could be considered "scripting", too. z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] Big missmatch In format duration (ffmpeg V6)
Hello, Please read the mailing list FAQ at https://ffmpeg.org/mailing-list-faq.html, it tells users to post the complete and unedited command and output and not to top-post. Also, it's a lot easier for us humans to read the default output than JSON and there's important info like the build information. It's not clear to me which "format duration" is questionable and what it should be. Thanks, z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] Big missmatch In format duration (ffmpeg V6)
On 2/11/2024 2:14 AM, Avraham Sikirov via ffmpeg-user wrote: Link to video and outputs: Please put the command outputs in the email message, not as an attachment or gdrive, it's much easier for everyone to see and read. z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] Why are these different?
On 2/7/2024 10:34 AM, Mark Filipak wrote: Okay. Why are they different? Because the containers are different? An mp4 container is not the same as an mkv (or avi or mpeg), they must have different demuxers. z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] The Guild
On 2/1/2024 11:26 AM, Mark Filipak wrote: There needs to be an FFmpeg Guild and there needs to be an FFmpeg industry. You guys/gals need to make a living. How can we make that happen? Why does there need to be a "guild"? If you want one, start one. Second, a cloud-based book that people buy. It would have to have a reader that people buy. The reader would read an encrypted cloud, would be read-only, would resist host probing/capture/screenshots, and would save _nothing_ locally. Again, why? (And of course a book would have a copyright, but that has little to do with how distribution is licensed.) You do not seem to understand open-source projects at all. z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] How to use the ffmpeg to real-time base TS analyze ?
On 1/15/2024 4:40 AM, Nandor Nemoda wrote: I have a*PCI* broadcast video card Which card? Only some have ffmpeg support and often the drivers aren't considered "free" so you have to build ffmpeg yourself to include them. OTOH, when you say "transport stream" do you mean mgep-ts, SDI, or something else? A little more detail would help. Later, z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] '-t' versus '-to'
On 1/13/2024 10:26 PM, Mark Filipak wrote: For example: -ss 20.061708 -to 5570.815250 would be -frametrim 481..134046 meaning frame 481 thru frame 134046. Although IME it much more common to specify the frame number after a dot* but ffmpeg doesn't seem to do that. (There may be North American vs Europe vs Asiatic regional conventions on this.) *hh:mm:ss.ff, or occasionally hh:mm:ss:ff, but the latter is ambiguous if either hh or ff are omitted Perhaps some day I'll look at the command arg time parser to see what assumptions are made and where they're documented. z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] '-t' versus '-to'
On 1/13/2024 7:37 PM, DEF wrote: other times you want to trim, you know your start time and end time but perhaps you are lazy to calculate the duration. Or don't see a need because you know the points :), AFAICT most human editors work that way. the you use -to to denote your_position_ in the video as in -ss 00:12:03 -to 15:04:08 for example. Brings another question- if you want to select 15 seconds and no additional frames starting at 00:00:03.0 do you give the out point as 00:00:18.0 or :17.999 or :17.29 (for a frame count, not a fraction of a second)? I suspect .999 will do the job, but it's cumbersome and not as simple to calculate. (I prefer frame numbers, myself.) Later, z! in the land of 29.97 ___ 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 "unsubscribe".
Re: [FFmpeg-user] Decoding performance, 6.1.1 vs. 4.4.4
On 1/10/2024 4:18 AM, Ren� J. V. Bertin wrote: (sorry for the linebreaks, I'm posting via a newsgroup app.) (Use an email program instead?) To me this looks like there's been a regression that causes an increased overhead in getting the content onto and/or off the GPU. Have you controlled for the graphics drivers (same for each build)? Also, try doing both builds with the same compiler. Is that possible? Could it have to do with the fact that FFmpeg6 auto-enables support for hw-acceleration via Vulkan (a moot selling point on this hardware) and if so would it help to disable that support? Definitely disable it for a better comparison, there may be extra steps in the data pathways which could affect the speed. Later, z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] Carrying arbitrary data track from TS to mp4
Please include the complete & unedited ffmpeg command output in the email, that'll show everyone info about the stream(s) in question as well as the ffmpeg version. Later, z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] Question about random() expression
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 what "save" means. In a function named random(), I expect the parameter to be used as a seed. I guess this is one of the places where one has to read the source code. I also suspect that "read the source" is the answer, but also recall from decades past that some systems (e.g. BASIC) needed a "randomize" statement in order to get off their usual starting point. Off to the source :). z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] sntsc
On 12/25/2023 1:04 AM, Mark Filipak wrote: Huh? "720x480 video with a display aspect ratio of 16:9" is what's on most 'NTSC' DVDs. Huh? The vast majority of DVDs I've handled were 4:3 then maybe letterboxed to only show some wide-screen size (like 2.33:1). Only more recent content was shot at 16:9, but AFAIK it's still coming of the disk as 720x480 or 704x480 (don't forget that one). Remember that almost everything involved with color NTSC is a kludge, and digital encoding of it is a kludge built on a kludge. Do not expect too much logic. z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] DTS discontinuity
On 12/22/2023 3:24 PM, Mark Filipak wrote: The log below is a version I cooked up to show 'N' only for I-frames. Um, what's the actual command? There aren't a lot of options to ffprobe, but it's still good to show the command anyway. z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] kmsgrab and audio problem
On 12/10/2023 12:47 AM, KoreanFanOfficial wrote: How i can[...]? You're asking for help yet don't want to play by the simple rules of the list). Some of them are- * Always show your actual, unscripted ffmpeg command and the complete, uncut console output from your command. * Use the most simple and minimal command that still shows the issue you are encountering. * Provide all necessary information so others can attempt to duplicate your issue. This includes the actual command, complete uncut console output, and any inputs that are required to duplicate the issue. * Avoid top-posting. Also see What is top-posting? (https://ffmpeg.org/mailing-list-faq.html#toc-What-are-the-rules-and-the-proper-etiquette_003f) Oh, and the referenced Code of Conduct says- * Be friendly and respectful towards others and third parties. Treat others the way you yourself want to be treated. (https://ffmpeg.org/community.html#Code-of-conduct) If you really do want some help, please stop insulting people and provide the information. If you don't want assistance, keep it up and you probably won't get any. z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] kmsgrab and audio problem
On 12/10/2023 1:58 AM, KoreanFanOfficial wrote: With this code: [...] That is not the complete _unedited_ output which often contains important information, like the ffmpeg build. Please read the FAQ at https://ffmpeg.org/mailing-list-faq.html. z! ___ 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 "unsubscribe".
[FFmpeg-user] The unsubscribe process
On 11/29/2023 9:18 AM, David Bernat wrote:
You misinterpreted the response. I have emailed the correct unsubscribe
link several times.
(emailed a link??? what does that mean?)
In the footer of every message-
> https://ffmpeg.org/mailman/listinfo/ffmpeg-user
>
> To unsubscribe, visit link above, or email
> ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Dropping "Please unsubscribe" in an existing message thread won't do it, you
have to send the correct subject ("unsubscribe") to the correct address
(ffmpeg-user-requ...@ffmpeg.org).
Or visit the link above, enter your email, press "unsub", and wait for the
confirmation email.
z!
___
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 "unsubscribe".
Re: [FFmpeg-user] More Liberal Licensing
On 11/28/2023 4:09 AM, Phil Rhodes via ffmpeg-user wrote: The thing which makes all this a bit difficult is whether it's possible (or easy) to prove that a given distributed binary is actually compiled from the source code one is offering. I'm not sure that this has ever been tested in court - most of the (L)GPL stuff hasn't, much - but it's not obvious to how someone could prove that if there were ever a dispute. FWIW, BusyBox has taken on some commercial organizations to court and prevailed, search "busybox copyright lawsuit" and you'll get things like https://softwarefreedom.org/news/2009/dec/14/busybox-gpl-lawsuit/ https://arstechnica.com/information-technology/2010/08/court-rules-gpl-part-of-a-well-pleaded-case/ (summary judgement) https://www.computerworld.com/article/2537947/open-source-legal-group-strikes-again-on-busybox--suing-verizon.html So whether or not you agree with the current licensing structure, if you want to use ffmpeg components you have to play by those rules. Later, z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] More Liberal Licensing
On 11/27/2023 9:50 AM, Suminda Sirinath Salpitikorala Dharmasena wrote: Is there a possibility to gradually move away from *GPL to a more liberal license? E.g. Apache 2.0 and/or MIT and/or BSD. That's unlikely as overall ffmpeg has contributions from many authors and they'd all have to agree (also note the "non-free" compile option). While I'm not a big fan of the GPL, what restrictions does it impose that are objectionable? z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] Compiling FFmpeg for nvidia hardware encoding on Debian 12
On 11/27/2023 9:23 AM, Andrew Randrianasulu wrote: If you need only ffmpeg - you can try and skip those dependencies Or add --disable-ffplay (and maybe --disable-ffprobe) to the configure line. If you don't need the player, why build it? z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] Need to reduce size of ffmpeg.exe
On 11/14/2023 2:26 PM, Kumar, Rahul via ffmpeg-user wrote: After this I ran "make" and "make install" command which created 1.2 mb ffmpeg.exe in bin folder. This ffmpeg.exe is not working for me. Can somebody guide me if I am missing anything here? What does "not working" mean? Where there any build warnings or errors? z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] Seeking Efficient Video Redaction Using FFMPEG with Limited Memory Usage
On 11/7/2023 3:34 PM, Nicolas George wrote: Libavfilter is at least linear in the number of filters for each single step of the filtering. That means a filter graph with 2000 filters will take at least 200 times as much power than a graph with 10 filters. Really a lot more, because larger graphs tend to be deeper too. Does 'power' in this case mean cpu usage or something else? How about memory- does a filter chain hold all the intermediate frames or discard them (deallocate the memory) once a particular filter has executed. (Or point me to a place in the code to look at this; I'm not afraid of reading the code if I know where to start.) Thanks, z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] Requesting colormatrix advice
On 11/7/2023 10:10 AM, Paul B Mahol wrote: I never assume anything without sufficient facts and data I can confirm again and again using proven solutions and procedures. And yet, you seem to know enough to tell people that they're wrong, and do so without telling them exactly what's wrong and how to correct it. Sounds like that's being "More extremely lazy". "but as usual you misinterpret it almost always via your logic fallacies." Missing was an explanation of what those supposed logic fallacies are and how they're false. "I can answer it, but I guess OP will listen to your usual misinformation." How do you know they will? Is it actually "misinformation" (still not answered)? Why didn't you answer it correctly in the first place? Oh, and don't bother again saying that I (or Mark, or Phil, etc) should be banned. z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] Requesting colormatrix advice
On 11/7/2023 10:05 AM, Paul B Mahol wrote: Documentation is there and its 99.99% correct and maintained, but as usual you misinterpret it almost always via your logic fallacies. Tell us what's wrong. z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] Seeking Efficient Video Redaction Using FFMPEG with Limited Memory Usage
On 11/7/2023 10:00 AM, Paul B Mahol wrote: I can answer it, Then DO SO! There's no reason to hold back. but I guess OP will listen to your usual misinformation. What is misinformation? Tell us. If you can't or won't, then maybe what I said is actually correct. z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] Seeking Efficient Video Redaction Using FFMPEG with Limited Memory Usage
On 11/7/2023 9:40 AM, Paul B Mahol wrote: Do you have actual proof for such claims? I do not need to "prove" my opinion. You're free to agree or not, and if you feel it's not correct or appropriate to provide other information. (I do know from my own experience that what I think the OP was taking about is fairly easy in OpenShot. You can accept that or not.) Or, _you_ could actually try to help the OP and answer their questions. You have not done so, and seldom do at all. z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] Seeking Efficient Video Redaction Using FFMPEG with Limited Memory Usage
On 11/6/2023 9:13 AM, sreekar manchukonda wrote: I'm seeking help on how to utilize ffmpeg to apply an extensive number of filters—specifically over 2000, each filter including a crop, boxblur, and overlay—to a video over an hour long. This is a single video, being processed once, with 2000 filters being applied? That in itself sounds like a recipe for disaster, and that a more purpose-built editing system would do a better job (e.g. openshot or shotcut, both are open-source). You may be able to create an EDL (Edit Decision List) from your filters to drive the editor software. If you have storage space, you could also use uncompressed intermediate files and successively run smaller groups of filters on them. Later, z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] Calculate file size for lossless encoding
On 10/1/2023 8:41 AM, Ulf Zibis wrote: So here it compresses with factor ~11, wow, great performance for ultrafast. Depends a lot on the content, of course. One of the great things, compression-wise, with screen grabs is that there is usually very little to no change frame-to-frame over most of the screen, and that makes for much lower bandwidth (which is recording those changes). Later, z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] Is there any good reason why FFmpeg doesn't do "-vcodec copy" automatically.
On 9/30/2023 12:07 PM, Reindl Harald wrote: is there a good reason to throw a video file through ffmpeg when you don't want to touch it? Changing the container or working only with the audio or subtitle tracks. So yes, there is a good reason. z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] Is there an equivalent of Drobox Lepton but for h.264 videos?
On 9/30/2023 7:00 AM, Andrew Randrianasulu wrote: well, h264 videos already heavy and usually lossy compressed, any further compression will be not lossless There's one-way compression that reduces size by throwing away data (e.g. jpg) and two-way compression that reduces size but the result can't be used without reversal (e.g. gzip/lzma, etc). Dropbox Lepton is one of the latter; it's also been deprecated by Dropbox - https://github.com/dropbox/lepton. Often it's more precise to talk about "image compression" vs "file compression". Media and graphics people usually seem to mean one-way compression while computer people usually mean two-way. z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] buffer underflow (?)
On 9/29/2023 2:25 PM, Mark Filipak wrote: On Fri, Sep 29, 2023 at 12:59 PM Carl Zwanzig wrote: -bsf[:stream_specifier] bitstream_filters (output,per-stream) :a will do the audio, :s for subtitles, etc (that's in the doc) No, it's not in the doc. It surely is, that's where I quoted it from- https://ffmpeg.org/ffmpeg-all.html#Advanced-options and about 300 lines down (or search for "-bsf"). It's around line 1760 of doc/ffmpeg.texi in the source tree. (You could also look at https://ffmpeg.org/ffmpeg-bitstream-filters.html) Those are documentation for ffmpeg, pretty much the reference set unless you read the source code. And the 'doc' are programmer documentations, not user documentation. Where did you get -that- idea? (User doc has been a thing for at least 50 years, I still have some of those books, and probably a lot longer.) BTW, the text "underflow" only appears maybe 20 times in the copy of the source I have handy (I'm not going to update just for this). Possibly the most relevant ones are- libavformat/mpegenc.c: "buffer underflow st=%d bufi=%d size=%d\n", libavcodec/ratecontrol.c:av_log(s->avctx, AV_LOG_ERROR, "rc buffer underflow\n"); but we don't know _because_we_don't_have_the_console_output_. z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] buffer underflow (?)
On 9/29/2023 9:45 AM, Mark Filipak wrote: Carl, please enlighten me: If I '-bsf:v setts...' that appears to only affect video. Duh... -bsf[:stream_specifier] bitstream_filters (output,per-stream) :a will do the audio, :s for subtitles, etc (that's in the doc) Is there a global 'setts'-type directive that will simultaneously fix up PTSs/DTSs/time_base for video, audio, subtitles, and chapters? I expect that three -bsf: options in a row would do the job but haven't tried it. z! who only does enlightenment for them self, not for other people. ___ 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 "unsubscribe".
Re: [FFmpeg-user] buffer underflow (?)
On 9/29/2023 9:29 AM, Mark Filipak wrote: On Fri, Sep 29, 2023 at 12:05 PM Carl Zwanzig wrote: But you can pull down the code I could... and read the concat muxer, Yes... which shouldn't be difficult if you've down real-time coding. I don't read 'C'. My code is micro. It's not difficult (and many people haved use 'c' on all manner of tiny processors, I did for z-80s). You could also look at a 'c' language primer (or- at least put some effort into it; anyone who's written RT assembler code should be able to follow the flow and structure). (Sigh!) You're asking me to reproduce a couple of days of work, and in the right order. I'll try. But I've gotten "buffer underflow" errors in the past, many times, and never really thought about it. Now I'm thinking about and it doesn't make sense. But I'll try to reproduce it. You're asking everyone else what an ambiguous error message means with only the barest of information; often that gets only the barest of response. Later, z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] buffer underflow (?)
On 9/29/2023 8:42 AM, Mark Filipak wrote: I do need help. I didn't write ffmpeg. But you can pull down the code and read the concat muxer, which shouldn't be difficult if you've down real-time coding. There have been more than a couple of times when simply searching for the error message led me to the code and reading that lead me to what I needed to know. (I've even posted some of that research here.) To answer one question- Why "buffer underflow"? Maybe it's the wrong error message for a specific condition _but_ we'll never have a clue without seeing console output (which, as Harald points out, you should know is appropriate). z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] ffmpeg retry failed segments
Please do not top-post on this list. ___ 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 "unsubscribe". And also please remove extra junk like the -four- footers which had already accumulated. z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] FFPLAY
On 9/19/2023 11:05 AM, Def Etienne wrote: And ffplay might not be the recommend tool for your tasks. "FFplay is a very simple and portable media player using the FFmpeg libraries and the SDL library. It is mostly used as a testbed for the various FFmpeg APIs." (https://ffmpeg.org/ffplay.html, which should also answer the question of how to select a stream) Try the mpv player to use the command line. Or mplayer, or vlc, or Most players have enough control from the command line. z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] Best media converter container for IPCam network streams
On 9/14/2023 3:33 AM, Giuseppe Modugno wrote: First question: could ffmpeg save the stream in a "raw" format as it is received from RTSP, without too much problems? Probably... I don't need to play the video continuously, only when I want. Only at that moment, I could use ffmpeg to join segments and transcode to mp4. In this case the transcoding is limited in time and only for short videos. (Only need to transcode to mp4 if the player doesn't support the other codecs, otherwise it's an extra step; but see below.) Second question: is there another media container format that could be better to use in my situation? I prefer mkv for resiliency, but opinions differ on that. I also wouldn't think twice about transcoding as received and writing that to files; it'll save time and hassle in the future as you've normalized the format. Or, transcode only the ones that are "weird" to solve the container issue and leave the rest alone. (Pay attention to frame and audio sampling rates; there's no point in transcoding 8k/sec audio to 48k or to a high-bit-rate encoding if you can avoid it.) What's the output storage? May want to trade off encoding overhead for storage size. Later, z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] Make conversion go faster
On 9/15/2023 12:02 AM, Ferdi Scholten wrote: Your speed might be limited by system constraints, like IO speed, cpu speed, number of cores, load and memory size/speed etc. Exactly!! You can't "speed something up" unless you know why it's slower than desirable, and that'll require a bit of monitoring system resources. (On windoze, I suggest starting with the SysInternal process explorer, it's both good and free.) Alexander and others- please do not top-post on this mailing list (see https://ffmpeg.org/mailing-list-faq.html, which among other things says to try with the latest version first). Later, z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] No compiled with -fPIC for libavcodec/aarch64/vp9mc_16bpp_neon.S
On 9/11/2023 10:19 PM, Peng Gao wrote: I compiled ffmpeg(4.3.1) In addition to the earlier comments, why are you working with such an old version? z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] Default audio stream -- how do I set it?
On 9/10/2023 8:35 AM, Mark Filipak wrote: Which of the dozens of failing ffmpeg commands that I've tried do you want? How about "any of them"? Maybe include a few of failing commands without the output so we can see what's been tried? (You've been on the list for a while, you know people want to see the output. And that would have told us 'mp4' without having to ask.) z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] How To Fix No Sound on Ubuntu in Hyper-V
On 8/28/2023 5:58 AM, Anatoly wrote: 2. is the IP right ? 0.0.0.0. :18181 looks odd, isn't it ? Right. 0.0.0.0 dees mean accept incoming connections on all network interfaces of your machine. But you have '-i' before the URL, making it an input. What is this "Jacob's trick" mentioned in the first email? What are you actually trying to do? More into goes a long way to finding problems even if they seem simple or obvious. There are quite a lot of web pages that give examples of using ffmpeg to originate a stream. Later, z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] How To Fix No Sound on Ubuntu in Hyper-V
It seems that a lot of concepts are being mixed here- What are you actually trying to do? Run ffmpeg in a VM or in windows? Serve content outbound or play something? On 8/26/2023 3:14 AM, ape...@free.fr wrote: First, I've installed ffmpeg 6.0 both on VMUbuntu and the host machine Windows. Then under Windows Power Shell the command : ffplay -nodisp -ac 2 -acodec pcm_s16le -ar 48000 -analyzeduration 0 -probesize 32 -f s16le -i udp://0.0.0.0:18181?listen=1 > I get lots of data (see below) That's just the start-up message, there could be a -lot- more. My questions : 1. How could I know the ffmpeg server is really launched ? Via Task Manager, I dont see anything, neither Process, nor Services > 2. is the IP right ? 0.0.0.0. :18181 looks odd, isn't it ? server? It you're trying to play something from a link it must point to the source (thus the IP is definitely wrong). If you're trying make it available to another player, nothing to play is specified. You don't need to use powershell to run the windows executables, cmd.exe is fine. What part does the VM ubuntu play in this? How does ffmpeg behave when running in the VM? (Please copy/paste the command output into the body of the email instead of doing screen captures, that's much easier for people to see). z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] How to drawtext hh:mm:ss:ff timecode (on an old version ffmpeg)
On 8/15/2023 1:35 PM, Media Mouth wrote: Seems to be a problem with the \:13, based on this error: Try it with a '.' or ',' there instead of a colon, hh:mm:ss.ff is a common format and the time parser may be choking in the 3rd colon. (Also try with something newer than version 4.2.2.) z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] h264_v4l2m2m won't write to .mkv
On 3/6/2023 10:39 AM, Neale Pickett wrote: ffmpeg version 4.4.2-0ubuntu0.22.04.1 Copyright (c) 2000-2021 May not make a difference, but try it with a recent build, at least a 5.x version; you can get a somewhat more recent static build at https://johnvansickle.com/ffmpeg/ although there may be newer ones elsewhere. z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] h264_v4l2m2m won't write to .mkv
On 3/6/2023 10:20 AM, Neale Pickett wrote: ffmpeg -y -hide_banner When asking questions, do not use -hide_banner, it conceals possibly-important information (please read the list FAQ, linked from the list info page). A few blanks lines for readability wouldn't hurt, either. Have you tried this with a similar MP4 file or is it just this one file? z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] ffmpeg first_PTS value range and min_comp, min_hard_comp
On 3/3/2023 12:44 PM, Amar Mash wrote: Could anyone help here ? a) sometimes it'll take a day or two for someone to respond, sometimes no one will; no one is being paid to answer questions here. b) please do not "top-post" on this list (don't put the reply above the quoted material). c) you may need to look at the source code for the filter to see what the value ranges are. Later, z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] Lipsync of a UDP stream
On 3/1/2023 2:24 PM, Amar Mash wrote: What do you do when audio is in sync (lip sync) at times and off at other times ? How can you programmatically tell? I don't know of an easy way. (The other thing to do is not top-post on this mailing list.) Later, z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] Repeatable resolution issue exporting mxfs, 1080p is coming out as 1088p
On 2/27/2023 2:50 PM, William Jones wrote: It seems that when converting .movs it knows that although the maths says 1088 we actually want 1080 and forces it through... Unfortunately it doesn't do the same with mxfs! Maybe that's the "bug" here (or "undocumented feature" if you prefer). z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] Help with converting .avi to mp4
On 2/12/2023 11:57 AM, Vincent Deconinck wrote: I mean -i See https://ffmpeg.org/ -i (input) on the ffmpeg command -l (long) on the ls command There is a lot of useful info about how command lines are interpreted in the first couple sections of the ffmpeg doc. Please post more details if you need more help :-) Jeff- also please see section 6 of https://ffmpeg.org/mailing-list-faq.html. Later, z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] Is there a way to modify every mpegts file when downloading a m3u8 stream?
On 2/11/2023 7:03 AM, accelerator0099 wrote: When you run ffmpeg -i "https://url.to.some.videos/some_stream.m3u8"; -o whatever.mp4 [...] It's really hard to tell what's going on without the required command output. Please read the FAQ at https://ffmpeg.org/mailing-list-faq.html and especially section 6. Also, as a test try simply copying the stream into a file; that is, write it to a mpegts file instead of re-coding to mp4. z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] Any way to estimate moov_size in mov/mp4?
On 2/10/2023 2:26 PM, Stefan Oltmanns wrote: Can someone simply explain what exactly is stored in the moov atom (not in theory what everything could be in there, but what ffmpeg actually writes there like "video codec information: x byte, audio codec information: x byte, timecode+byteoffset: x byte for each frame and so on) In the ffmpeg source it appears to be in libavformat/mov.c and movenc.c, but the info actually included will vary with what's being stuffed into the container. Sidestepping the question, there are decent write-ups at https://atomicparsley.sourceforge.net/mpeg-4files.html https://www.cimarronsystems.com/wp-content/uploads/2017/04/Elements-of-the-H.264-VideoAAC-Audio-MP4-Movie-v2_0.pdf And while it's old, you could grab a copy of AtomicParsley and see what's in various test files. (Please do not top-post on this mailing list, thanks.) z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] Any way to estimate moov_size in mov/mp4?
On 2/10/2023 3:20 AM, Bouke / Videotoolshed wrote:
Faststart is for internet / network playing only, when the entire file is not
yet available.
Not only for network playback; maybe often used for that but there's no
reason to limit the use.
If movflags faststart is needed, it should be darn fast as your files
’should’ be fairly small, as they are intended for (relative) low
bandwith. > There is NO penalty for having the MOOV atom at the end if a file is
local, as parsing all atoms will not take longer than a few secs if the
file is local.
It's difficult to characterize a 2 hour FHD (or 4k) video file as small or
intended for low bandwidth, and there -is- a penalty ("a few seconds"). Many
playout servers will play from MP4 files and "a few seconds" is a few too
long when a specific file is to play. Some software will pre-open the file
and start it on time, but that's no reason to not put the necessary info at
the head of the file. (The OP also says "As the produced files are very big
anyway I don't mind wasting a few MB by overestimating.")
It would be interesting to see how accurate Bouke's technique is for
estimating the moov atom size; probably close enough but confirmation is
always good.
Later,
z!
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Re: [FFmpeg-user] errors in encoding avc x264 to av1 using latest ffmpeg libaom linux
Hello, Please do not top-post on this list (that is, place your reply -below- what you're quoting, not above (yes, you can do this with gmail). On 2/2/2023 5:42 PM, Guddla Rupesh wrote: Another intresting thing is that I have to downloaded the source code tar ball of ffmpeg from its original site and it's size was 11 mb while the size of source code from git was 390 mb. If you did a 'git clone' from the repo, you will have downloaded not only the current version of everything, but all the history, too (in the .git directory). Later, z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] Code of Conduct & Mailing list rules & Community Committee
On 2/5/2023 10:48 PM, Kieran O Leary wrote: I'm really glad that some action has been taken. Same here. In addition, can/has the FAQ link been added to the list's Welcome message? That might help new members know what's expected. Thanks, z! ___ 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 "unsubscribe".
Re: [FFmpeg-user] ffmpeg list FAQ- for those who can't click a link
On 2/4/2023 12:07 PM, Dave Blanchard wrote: I'm sure there's somebody out there, probably some "idiot" noob, who "can't click a link", who will greatly appreciate your link. Actually, I wrote it for the noob who thinks it doesn't apply to them- "I don't have time to familiarize myself with the 6,282,928 special snowflake unique rule systems that every special snowflake community on the planet expects everyone to memorize and be intimately familiar with at all times. " There's nothing "snowflake" about the FAQ's Rules and Etiquette and they're pretty normal and standard for technical mailing lists, I assume you're on a few besides this one. z! ___ 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 "unsubscribe".
[FFmpeg-user] ffmpeg list FAQ- for those who can't click a link
These are not very different from the rules/guidelines of most of the technical mailing lists I'm on or have managed. If you can't be bothered to read the FAQ for a list you affirmatively joined, maybe you shouldn't have joined it in the first place. These are also generally good rules to live by, especially the first in section 4. z! https://ffmpeg.org/mailing-list-faq.html 4 Code of conduct Be friendly and respectful towards others and third parties. Treat others the way you yourself want to be treated. Be considerate. Not everyone shares the same viewpoint and priorities as you do. Different opinions and interpretations help the project. Looking at issues from a different perspective assists development. Do not assume malice for things that can be attributed to incompetence. Even if it is malice, it�s rarely good to start with that as initial assumption. Stay friendly even if someone acts contrarily. Everyone has a bad day once in a while. If you yourself have a bad day or are angry then try to take a break and reply once you are calm and without anger if you have to. Try to help other team members and cooperate if you can. The goal of software development is to create technical excellence, not for any individual to be better and "win" against the others. Large software projects are only possible and successful through teamwork. If someone struggles do not put them down. Give them a helping hand instead and point them in the right direction. Finally, keep in mind the immortal words of Bill and Ted, "Be excellent to each other." 6.1 What are the rules and the proper etiquette? There may seem to be many things to remember, but we want to help and following these guidelines will allow you to get answers more quickly and help avoid getting ignored. Always show your actual, unscripted ffmpeg command and the complete, uncut console output from your command. Use the most simple and minimal command that still shows the issue you are encountering. Provide all necessary information so others can attempt to duplicate your issue. This includes the actual command, complete uncut console output, and any inputs that are required to duplicate the issue. Use the latest ffmpeg build you can get. See the FFmpeg Download page for links to recent builds for Linux, macOS, and Windows. Or compile from the current git master branch. Avoid top-posting. Also see What is top-posting? Avoid hijacking threads. Thread hijacking is replying to a message and changing the subject line to something unrelated to the original thread. Most email clients will still show the renamed message under the original thread. This can be confusing and these types of messages are often ignored. Do not send screenshots. Copy and paste console text instead of making screenshots of the text. Avoid sending email disclaimers and legalese if possible as this is a public list. Avoid using the -loglevel debug, -loglevel quiet, and -hide_banner options unless requested to do so. If you attach files avoid compressing small files. Uncompressed is preferred. Please do not send HTML-only messages. The mailing list will ignore the HTML component of your message. Most mail clients will automatically include a text component: this is what the mailing list will use. Configuring your mail client to break lines after 70 or so characters is recommended. Avoid sending the same message to multiple mailing lists. Please follow our Code of Conduct. -fin-- ___ 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 "unsubscribe".
Re: [FFmpeg-user] New user question
On 2/3/2023 9:22 AM, Dave Blanchard wrote: And how would that help this situation in any way? In this one particular case, maybe not, but we don't necessary know. So, why include that? Because it would contain the build info, which may be relevant. Because it contains info about the input and output streams. Because the list FAQ (you have read it, haven't you?) asks for it. There is seldom a reason you leave out the complete command and output; most of us would rather see it than have to ask, and more often than not it is needed. z! ___ 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 "unsubscribe".
