* [FFmpeg-devel] [POLL][RFC] Merge vs Cherry pick for integration of changes @ 2025-08-21 11:32 Michael Niedermayer via ffmpeg-devel 2025-08-21 16:56 ` Kieran Kunhya via ffmpeg-devel ` (4 more replies) 0 siblings, 5 replies; 19+ messages in thread From: Michael Niedermayer via ffmpeg-devel @ 2025-08-21 11:32 UTC (permalink / raw) To: FFmpeg development discussions and patches; +Cc: Michael Niedermayer [-- Attachment #1.1: Type: text/plain, Size: 2314 bytes --] Hi Should we use a Merge or Cherry picks for integrating Pauls work ? Following are 2 plans, as we execute either we may run into issues and of course adapt them as needed. (or even switch) Option M: This would be a merge of pauls last revission before files where switched to GPL and the command line tool to AGPL It would include all changes (except what is intentionally skiped) (This will look similar to how almpeg looks now) Fate tests would be added after the merge where sample media is publically available on our server. Reviews of Individual modules can be done after the merge where people want to do that. Option C: Individual Modules (Codecs, Filters, Demuxers) would be submitted as patch(sets) This would include only the picked changes. Changes noone picks and posts would be missing. Each would go through the review process (some likely with "apply after timeout"). And during that review fate tests would be added where public samples are on our server. M would likely integrate more changes, C less changes. C may be more work. We currently have a point on the wiki for STF 2025 that would fund each integrated module with 900€. That way, whoever adds fate tests, makes changes the community wants in a review, fixes bugs found by tests or review, could be funded. It is possible that teh community adjusts the exact STF task / work / ... before its deadline. I think many people have already thought about the merge vs cherry pick question. (it came up previously on the ML and in the GA) So maybe we can just vote on it now over the next 8 days. Or if people want more discussion first, we can do that too. We will see based on peoples replies. Maybe use the first day to think and sleep over it or a quick discussion and then vote in the next 7 days. If you want to vote, please simply reply with "M" or "C" (and of course any details, why you think thats the better option, if you want to add details) Otherwise reply with "D" for "more Discussion" and details about what you want to say/discuss. thx -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB Some Animals are More Equal Than Others. - George Orwell's book Animal Farm [-- Attachment #1.2: signature.asc --] [-- Type: application/pgp-signature, Size: 195 bytes --] [-- Attachment #2: Type: text/plain, Size: 251 bytes --] _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe". ^ permalink raw reply [flat|nested] 19+ messages in thread
* Re: [FFmpeg-devel] [POLL][RFC] Merge vs Cherry pick for integration of changes 2025-08-21 11:32 [FFmpeg-devel] [POLL][RFC] Merge vs Cherry pick for integration of changes Michael Niedermayer via ffmpeg-devel @ 2025-08-21 16:56 ` Kieran Kunhya via ffmpeg-devel 2025-08-21 17:53 ` Michael Niedermayer via ffmpeg-devel 2025-08-22 12:29 ` Niklas Haas via ffmpeg-devel ` (3 subsequent siblings) 4 siblings, 1 reply; 19+ messages in thread From: Kieran Kunhya via ffmpeg-devel @ 2025-08-21 16:56 UTC (permalink / raw) To: FFmpeg development discussions and patches Cc: Kieran Kunhya, Michael Niedermayer On Thu, 21 Aug 2025, 01:32 Michael Niedermayer via ffmpeg-devel, < ffmpeg-devel@ffmpeg.org> wrote: > Hi > > Should we use a Merge or Cherry picks for integrating Pauls work ? > > Following are 2 plans, as we execute either we may run into issues > and of course adapt them as needed. (or even switch) > > Option M: > This would be a merge of pauls last revission before files where > switched to GPL and the command line tool to AGPL > > It would include all changes (except what is intentionally skiped) > (This will look similar to how almpeg looks now) > > Fate tests would be added after the merge where sample media is > publically available on our server. > Reviews of Individual modules can be done after the merge where > people want to do that. > > Option C: > Individual Modules (Codecs, Filters, Demuxers) would be submitted > as patch(sets) > > This would include only the picked changes. Changes noone picks and > posts would be missing. > > Each would go through the review process (some likely with "apply > after timeout"). And during that review fate tests would be added > where public samples are on our server. > > M would likely integrate more changes, C less changes. C may be more work. > > We currently have a point on the wiki for STF 2025 that would fund each > integrated module with 900€. > That way, whoever adds fate tests, makes changes the community wants in > a review, fixes bugs found by tests or review, could be funded. > > It is possible that teh community adjusts the exact STF task / work / ... > before its deadline. > > I think many people have already thought about the merge vs cherry pick > question. (it came up previously on the ML and in the GA) So maybe we can > just vote on it now over the next 8 days. Or if people want more discussion > first, we can do that too. We will see based on peoples replies. > Maybe use the first day to think and sleep over it or a quick discussion > and then vote in the next 7 days. > > If you want to vote, please simply reply with "M" or "C" (and of course any > details, why you think thats the better option, if you want to add details) > > Otherwise reply with "D" for "more Discussion" and details about what > you want to say/discuss. > > thx > D For the record, Paul had a note saying changes are under GPL. As I understand you are ignoring legal advice saying this is a valid statement. Can you confirm the legal advice you were given and that you are ignoring it? Kieran > _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe". ^ permalink raw reply [flat|nested] 19+ messages in thread
* Re: [FFmpeg-devel] [POLL][RFC] Merge vs Cherry pick for integration of changes 2025-08-21 16:56 ` Kieran Kunhya via ffmpeg-devel @ 2025-08-21 17:53 ` Michael Niedermayer via ffmpeg-devel 2025-08-21 17:58 ` Kieran Kunhya via ffmpeg-devel 0 siblings, 1 reply; 19+ messages in thread From: Michael Niedermayer via ffmpeg-devel @ 2025-08-21 17:53 UTC (permalink / raw) To: FFmpeg development discussions and patches; +Cc: Michael Niedermayer [-- Attachment #1.1: Type: text/plain, Size: 824 bytes --] Hi Kieran On Thu, Aug 21, 2025 at 06:56:14AM -1000, Kieran Kunhya via ffmpeg-devel wrote: [...] > For the record, Paul had a note saying changes are under GPL. As I > understand you are ignoring legal advice saying this is a valid statement. > > Can you confirm the legal advice you were given and that you are ignoring > it? We have hired one of the leading copyright / IP law firms / lawyers And the shortest summary is that code with LGPL headers can be used under LGPL. The oppinion of the lawyer (which is much longer and more detailed) was provided to the General Assembly of FFmpeg. thx [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB I know you won't believe me, but the highest form of Human Excellence is to question oneself and others. -- Socrates [-- Attachment #1.2: signature.asc --] [-- Type: application/pgp-signature, Size: 195 bytes --] [-- Attachment #2: Type: text/plain, Size: 251 bytes --] _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe". ^ permalink raw reply [flat|nested] 19+ messages in thread
* Re: [FFmpeg-devel] [POLL][RFC] Merge vs Cherry pick for integration of changes 2025-08-21 17:53 ` Michael Niedermayer via ffmpeg-devel @ 2025-08-21 17:58 ` Kieran Kunhya via ffmpeg-devel 0 siblings, 0 replies; 19+ messages in thread From: Kieran Kunhya via ffmpeg-devel @ 2025-08-21 17:58 UTC (permalink / raw) To: FFmpeg development discussions and patches Cc: Kieran Kunhya, Michael Niedermayer On Thu, 21 Aug 2025, 07:53 Michael Niedermayer via ffmpeg-devel, < ffmpeg-devel@ffmpeg.org> wrote: > Hi Kieran > > On Thu, Aug 21, 2025 at 06:56:14AM -1000, Kieran Kunhya via ffmpeg-devel > wrote: > [...] > > For the record, Paul had a note saying changes are under GPL. As I > > understand you are ignoring legal advice saying this is a valid > statement. > > > > Can you confirm the legal advice you were given and that you are ignoring > > it? > > We have hired one of the leading copyright / IP law firms / lawyers > > And the shortest summary is that code with LGPL headers can be used under > LGPL. > The oppinion of the lawyer (which is much longer and more detailed) was > provided to the General Assembly of FFmpeg. > > thx > > [...] > -- > Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB > > I know you won't believe me, but the highest form of Human Excellence is > to question oneself and others. -- Socrates > This opinion contradicts the FFlabs lawyer which you said you were going to use and provided a lengthy justification. So you basically went around lawyers until you got the answer you want. Kieran > _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe". ^ permalink raw reply [flat|nested] 19+ messages in thread
* Re: [FFmpeg-devel] [POLL][RFC] Merge vs Cherry pick for integration of changes 2025-08-21 11:32 [FFmpeg-devel] [POLL][RFC] Merge vs Cherry pick for integration of changes Michael Niedermayer via ffmpeg-devel 2025-08-21 16:56 ` Kieran Kunhya via ffmpeg-devel @ 2025-08-22 12:29 ` Niklas Haas via ffmpeg-devel 2025-08-22 12:45 ` Diederick C. Niehorster via ffmpeg-devel ` (2 more replies) 2025-08-23 13:20 ` Michael Niedermayer via ffmpeg-devel ` (2 subsequent siblings) 4 siblings, 3 replies; 19+ messages in thread From: Niklas Haas via ffmpeg-devel @ 2025-08-22 12:29 UTC (permalink / raw) To: Michael Niedermayer via ffmpeg-devel, FFmpeg development discussions and patches Cc: Niklas Haas, Michael Niedermayer On Thu, 21 Aug 2025 13:32:02 +0200 Michael Niedermayer via ffmpeg-devel <ffmpeg-devel@ffmpeg.org> wrote: > Hi > > Should we use a Merge or Cherry picks for integrating Pauls work ? > > Following are 2 plans, as we execute either we may run into issues > and of course adapt them as needed. (or even switch) > > Option M: > This would be a merge of pauls last revission before files where > switched to GPL and the command line tool to AGPL > > It would include all changes (except what is intentionally skiped) > (This will look similar to how almpeg looks now) > > Fate tests would be added after the merge where sample media is > publically available on our server. > Reviews of Individual modules can be done after the merge where > people want to do that. > > Option C: > Individual Modules (Codecs, Filters, Demuxers) would be submitted > as patch(sets) > > This would include only the picked changes. Changes noone picks and > posts would be missing. > > Each would go through the review process (some likely with "apply > after timeout"). And during that review fate tests would be added > where public samples are on our server. > > M would likely integrate more changes, C less changes. C may be more work. > > We currently have a point on the wiki for STF 2025 that would fund each > integrated module with 900€. > That way, whoever adds fate tests, makes changes the community wants in > a review, fixes bugs found by tests or review, could be funded. D Since you tagged the GA on this, I am going to go ahead and request that a formal GA vote, which I assume will be conducted before any action, must have the option to vote that we respect Paul's request (and arguably, his legal right) to not merge his work into FFmpeg. Even if you personally think the risk of Paul litigating FFmpeg in response is neglible, and are willing to shoulder the potential costs of a legal battle on your own shoulders, I do not think it sets a good precedent and will be potentially damaging to the FFmpeg project's public image. > It is possible that teh community adjusts the exact STF task / work / ... > before its deadline. I think that SPI/STF projects should also be voted on by the GA before being approved for inclusion in the contract proposal. We already have the infrastructure for this in place, and I am sure that the majority of the GA members would rather spend 5 minutes of their time reviewing each project proposal rather than having it handled in an ad-hoc manner. The last STF round already received a number of criticisms about lack of transparency, so I think this would be a step in the right direction. _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe". ^ permalink raw reply [flat|nested] 19+ messages in thread
* Re: [FFmpeg-devel] [POLL][RFC] Merge vs Cherry pick for integration of changes 2025-08-22 12:29 ` Niklas Haas via ffmpeg-devel @ 2025-08-22 12:45 ` Diederick C. Niehorster via ffmpeg-devel 2025-08-22 12:59 ` Michael Niedermayer via ffmpeg-devel 2025-08-22 13:45 ` Michael Niedermayer via ffmpeg-devel 2 siblings, 0 replies; 19+ messages in thread From: Diederick C. Niehorster via ffmpeg-devel @ 2025-08-22 12:45 UTC (permalink / raw) To: FFmpeg development discussions and patches Cc: Diederick C. Niehorster, Michael Niedermayer, Niklas Haas On Fri, Aug 22, 2025 at 2:30 PM Niklas Haas via ffmpeg-devel <ffmpeg-devel@ffmpeg.org> wrote: > > On Thu, 21 Aug 2025 13:32:02 +0200 Michael Niedermayer via ffmpeg-devel <ffmpeg-devel@ffmpeg.org> wrote: > > Hi > > > > Should we use a Merge or Cherry picks for integrating Pauls work ? > > > > Following are 2 plans, as we execute either we may run into issues > > and of course adapt them as needed. (or even switch) > > > > Option M: > > This would be a merge of pauls last revission before files where > > switched to GPL and the command line tool to AGPL > > > > It would include all changes (except what is intentionally skiped) > > (This will look similar to how almpeg looks now) > > > > Fate tests would be added after the merge where sample media is > > publically available on our server. > > Reviews of Individual modules can be done after the merge where > > people want to do that. > > > > Option C: > > Individual Modules (Codecs, Filters, Demuxers) would be submitted > > as patch(sets) > > > > This would include only the picked changes. Changes noone picks and > > posts would be missing. > > > > Each would go through the review process (some likely with "apply > > after timeout"). And during that review fate tests would be added > > where public samples are on our server. > > > > M would likely integrate more changes, C less changes. C may be more work. > > > > We currently have a point on the wiki for STF 2025 that would fund each > > integrated module with 900€. > > That way, whoever adds fate tests, makes changes the community wants in > > a review, fixes bugs found by tests or review, could be funded. > > D > > Since you tagged the GA on this, I am going to go ahead and request that > a formal GA vote, which I assume will be conducted before any action, must > have the option to vote that we respect Paul's request (and arguably, his > legal right) to not merge his work into FFmpeg. > > Even if you personally think the risk of Paul litigating FFmpeg in response > is neglible, and are willing to shoulder the potential costs of a legal battle > on your own shoulders, I do not think it sets a good precedent and will be > potentially damaging to the FFmpeg project's public image. > > > It is possible that teh community adjusts the exact STF task / work / ... > > before its deadline. > > I think that SPI/STF projects should also be voted on by the GA before being > approved for inclusion in the contract proposal. > > We already have the infrastructure for this in place, and I am sure that the > majority of the GA members would rather spend 5 minutes of their time > reviewing each project proposal rather than having it handled in an ad-hoc > manner. > > The last STF round already received a number of criticisms about lack of > transparency, so I think this would be a step in the right direction. Absolute and strong +1, this is the better (series of) vote(s) to have. Thanks Niklas, All the best, Dee _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe". ^ permalink raw reply [flat|nested] 19+ messages in thread
* Re: [FFmpeg-devel] [POLL][RFC] Merge vs Cherry pick for integration of changes 2025-08-22 12:29 ` Niklas Haas via ffmpeg-devel 2025-08-22 12:45 ` Diederick C. Niehorster via ffmpeg-devel @ 2025-08-22 12:59 ` Michael Niedermayer via ffmpeg-devel 2025-08-23 7:09 ` Rémi Denis-Courmont via ffmpeg-devel 2025-08-22 13:45 ` Michael Niedermayer via ffmpeg-devel 2 siblings, 1 reply; 19+ messages in thread From: Michael Niedermayer via ffmpeg-devel @ 2025-08-22 12:59 UTC (permalink / raw) To: FFmpeg development discussions and patches Cc: Michael Niedermayer, Niklas Haas [-- Attachment #1.1: Type: text/plain, Size: 3336 bytes --] Hi Niklas On Fri, Aug 22, 2025 at 02:29:56PM +0200, Niklas Haas via ffmpeg-devel wrote: > On Thu, 21 Aug 2025 13:32:02 +0200 Michael Niedermayer via ffmpeg-devel <ffmpeg-devel@ffmpeg.org> wrote: > > Hi > > > > Should we use a Merge or Cherry picks for integrating Pauls work ? > > > > Following are 2 plans, as we execute either we may run into issues > > and of course adapt them as needed. (or even switch) > > > > Option M: > > This would be a merge of pauls last revission before files where > > switched to GPL and the command line tool to AGPL > > > > It would include all changes (except what is intentionally skiped) > > (This will look similar to how almpeg looks now) > > > > Fate tests would be added after the merge where sample media is > > publically available on our server. > > Reviews of Individual modules can be done after the merge where > > people want to do that. > > > > Option C: > > Individual Modules (Codecs, Filters, Demuxers) would be submitted > > as patch(sets) > > > > This would include only the picked changes. Changes noone picks and > > posts would be missing. > > > > Each would go through the review process (some likely with "apply > > after timeout"). And during that review fate tests would be added > > where public samples are on our server. > > > > M would likely integrate more changes, C less changes. C may be more work. > > > > We currently have a point on the wiki for STF 2025 that would fund each > > integrated module with 900€. > > That way, whoever adds fate tests, makes changes the community wants in > > a review, fixes bugs found by tests or review, could be funded. > > D > > Since you tagged the GA on this, I am going to go ahead and request that > a formal GA vote, which I assume will be conducted before any action, must > have the option to vote that we respect Paul's request (and arguably, his > legal right) to not merge his work into FFmpeg. This here is a simple (and transparent) vote Using the mailing list allows people also to discuss and explain their reasonings (like you did here) I do think there is value in hearing the reasonings of people and not just seeing a number of how many are in favor vs against. [...] > > It is possible that teh community adjusts the exact STF task / work / ... > > before its deadline. > > I think that SPI/STF projects should also be voted on by the GA before being > approved for inclusion in the contract proposal. That was always possible, people can and could always discuss and object to proposals. What we submit to STF should be proposals that have a broad consensus not 51% behind them > > We already have the infrastructure for this in place, and I am sure that the > majority of the GA members would rather spend 5 minutes of their time > reviewing each project proposal rather than having it handled in an ad-hoc > manner. The infrastructure will tell you what the majority voted for. Not why Nor will it lead to a consensus if theres none before but open discussion can lead to consensus thx [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB He who knows, does not speak. He who speaks, does not know. -- Lao Tsu [-- Attachment #1.2: signature.asc --] [-- Type: application/pgp-signature, Size: 195 bytes --] [-- Attachment #2: Type: text/plain, Size: 251 bytes --] _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe". ^ permalink raw reply [flat|nested] 19+ messages in thread
* Re: [FFmpeg-devel] [POLL][RFC] Merge vs Cherry pick for integration of changes 2025-08-22 12:59 ` Michael Niedermayer via ffmpeg-devel @ 2025-08-23 7:09 ` Rémi Denis-Courmont via ffmpeg-devel 2025-08-23 10:58 ` Michael Niedermayer via ffmpeg-devel 0 siblings, 1 reply; 19+ messages in thread From: Rémi Denis-Courmont via ffmpeg-devel @ 2025-08-23 7:09 UTC (permalink / raw) To: FFmpeg development discussions and patches; +Cc: Rémi Denis-Courmont Le perjantaina 22. elokuuta 2025, 15.59.14 Itä-Euroopan kesäaika Michael Niedermayer via ffmpeg-devel a écrit : > > Since you tagged the GA on this, I am going to go ahead and request that > > a formal GA vote, which I assume will be conducted before any action, must > > have the option to vote that we respect Paul's request (and arguably, his > > legal right) to not merge his work into FFmpeg. > > This here is a simple (and transparent) vote > Using the mailing list allows people also to discuss and explain their > reasonings (like you did here) I think that is common knowledge but here goes... A public ballot, also known as plebiscite, is by nature a performative exercise. A secret ballot allows people to express their opinion based purely on the technical and moral merits without the fear of a bad perception and self- censorship. > I do think there is value in hearing the reasonings of people and not > just seeing a number of how many are in favor vs against. It's fine to discuss/debate this publicly. That has nothing to do with how to decide. In fact, this obviously needs to happen before the *informed* decision is made. As a member of the CC and the GA, I agree with Niklaas that any license change needs a GA vote. And obviously that preempts any discussion of how to merge the code. -- Rémi Denis-Courmont Villeneuve de Tapiola, ex-République finlandaise d´Uusimaa _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe". ^ permalink raw reply [flat|nested] 19+ messages in thread
* Re: [FFmpeg-devel] [POLL][RFC] Merge vs Cherry pick for integration of changes 2025-08-23 7:09 ` Rémi Denis-Courmont via ffmpeg-devel @ 2025-08-23 10:58 ` Michael Niedermayer via ffmpeg-devel 2025-08-23 12:59 ` Kieran Kunhya via ffmpeg-devel 0 siblings, 1 reply; 19+ messages in thread From: Michael Niedermayer via ffmpeg-devel @ 2025-08-23 10:58 UTC (permalink / raw) To: FFmpeg development discussions and patches; +Cc: Michael Niedermayer [-- Attachment #1.1: Type: text/plain, Size: 540 bytes --] On Sat, Aug 23, 2025 at 10:09:14AM +0300, Rémi Denis-Courmont via ffmpeg-devel wrote: [...] > As a member of the CC and the GA, I agree with Niklaas that any license change > needs a GA vote. And obviously that preempts any discussion of how to merge > the code. There is no license change. thx [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB Dictatorship naturally arises out of democracy, and the most aggravated form of tyranny and slavery out of the most extreme liberty. -- Plato [-- Attachment #1.2: signature.asc --] [-- Type: application/pgp-signature, Size: 195 bytes --] [-- Attachment #2: Type: text/plain, Size: 251 bytes --] _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe". ^ permalink raw reply [flat|nested] 19+ messages in thread
* Re: [FFmpeg-devel] [POLL][RFC] Merge vs Cherry pick for integration of changes 2025-08-23 10:58 ` Michael Niedermayer via ffmpeg-devel @ 2025-08-23 12:59 ` Kieran Kunhya via ffmpeg-devel 0 siblings, 0 replies; 19+ messages in thread From: Kieran Kunhya via ffmpeg-devel @ 2025-08-23 12:59 UTC (permalink / raw) To: FFmpeg development discussions and patches Cc: Kieran Kunhya, Michael Niedermayer On Sat, 23 Aug 2025, 00:58 Michael Niedermayer via ffmpeg-devel, < ffmpeg-devel@ffmpeg.org> wrote: > On Sat, Aug 23, 2025 at 10:09:14AM +0300, Rémi Denis-Courmont via > ffmpeg-devel wrote: > [...] > > As a member of the CC and the GA, I agree with Niklaas that any license > change > > needs a GA vote. And obviously that preempts any discussion of how to > merge > > the code. > > There is no license change. > > thx > The FFlabs lawyer did not see it that way. Kieran > _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe". ^ permalink raw reply [flat|nested] 19+ messages in thread
* Re: [FFmpeg-devel] [POLL][RFC] Merge vs Cherry pick for integration of changes 2025-08-22 12:29 ` Niklas Haas via ffmpeg-devel 2025-08-22 12:45 ` Diederick C. Niehorster via ffmpeg-devel 2025-08-22 12:59 ` Michael Niedermayer via ffmpeg-devel @ 2025-08-22 13:45 ` Michael Niedermayer via ffmpeg-devel 2 siblings, 0 replies; 19+ messages in thread From: Michael Niedermayer via ffmpeg-devel @ 2025-08-22 13:45 UTC (permalink / raw) To: FFmpeg development discussions and patches Cc: Michael Niedermayer, Niklas Haas [-- Attachment #1.1: Type: text/plain, Size: 3181 bytes --] Hi Niklas On Fri, Aug 22, 2025 at 02:29:56PM +0200, Niklas Haas via ffmpeg-devel wrote: > On Thu, 21 Aug 2025 13:32:02 +0200 Michael Niedermayer via ffmpeg-devel <ffmpeg-devel@ffmpeg.org> wrote: > > Hi > > > > Should we use a Merge or Cherry picks for integrating Pauls work ? > > > > Following are 2 plans, as we execute either we may run into issues > > and of course adapt them as needed. (or even switch) > > > > Option M: > > This would be a merge of pauls last revission before files where > > switched to GPL and the command line tool to AGPL > > > > It would include all changes (except what is intentionally skiped) > > (This will look similar to how almpeg looks now) > > > > Fate tests would be added after the merge where sample media is > > publically available on our server. > > Reviews of Individual modules can be done after the merge where > > people want to do that. > > > > Option C: > > Individual Modules (Codecs, Filters, Demuxers) would be submitted > > as patch(sets) > > > > This would include only the picked changes. Changes noone picks and > > posts would be missing. > > > > Each would go through the review process (some likely with "apply > > after timeout"). And during that review fate tests would be added > > where public samples are on our server. > > > > M would likely integrate more changes, C less changes. C may be more work. > > > > We currently have a point on the wiki for STF 2025 that would fund each > > integrated module with 900€. > > That way, whoever adds fate tests, makes changes the community wants in > > a review, fixes bugs found by tests or review, could be funded. > > D > > Since you tagged the GA on this, I am going to go ahead and request that > a formal GA vote, which I assume will be conducted before any action, must > have the option to vote that we respect Paul's request (and arguably, his > legal right) to not merge his work into FFmpeg. > > Even if you personally think the risk of Paul litigating FFmpeg in response > is neglible, and are willing to shoulder the potential costs of a legal battle > on your own shoulders, I do not think it sets a good precedent and will be > potentially damaging to the FFmpeg project's public image. So, lets just make a thought-experiment 1. Mr X forks FFmpeg. 2. Mr X merges Pauls (LGPL) code 3. Mr X adds everything he finds cool or inovative 4. Mr X maintains his fork and stops maintaining anything in FFmpeg 5. Mr X daily merges ffmpeg improvments (and maybe pauls if his code is GPL) 6. Mr X nicely tell FFmpeg that he objects to FFmpeg merging his code ;) ;) ;)))) will ffmpeg comply to this request ? What if I join these forks, you know each of the forks will take ffmpeg code and each others work. (within the bounds of each ones licenses) FFmpeg will not integrate any improvments back ? Thats how you suggest FFmpeg should be run ? how could that work ? thx [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB It is what and why we do it that matters, not just one of them. [-- Attachment #1.2: signature.asc --] [-- Type: application/pgp-signature, Size: 195 bytes --] [-- Attachment #2: Type: text/plain, Size: 251 bytes --] _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe". ^ permalink raw reply [flat|nested] 19+ messages in thread
* Re: [FFmpeg-devel] [POLL][RFC] Merge vs Cherry pick for integration of changes 2025-08-21 11:32 [FFmpeg-devel] [POLL][RFC] Merge vs Cherry pick for integration of changes Michael Niedermayer via ffmpeg-devel 2025-08-21 16:56 ` Kieran Kunhya via ffmpeg-devel 2025-08-22 12:29 ` Niklas Haas via ffmpeg-devel @ 2025-08-23 13:20 ` Michael Niedermayer via ffmpeg-devel 2025-08-23 20:33 ` [FFmpeg-devel] Legal Advice Was: " Michael Niedermayer via ffmpeg-devel 2025-08-24 10:59 ` [FFmpeg-devel] " Michael Niedermayer via ffmpeg-devel 4 siblings, 0 replies; 19+ messages in thread From: Michael Niedermayer via ffmpeg-devel @ 2025-08-23 13:20 UTC (permalink / raw) To: FFmpeg development discussions and patches; +Cc: Michael Niedermayer [-- Attachment #1.1: Type: text/plain, Size: 1645 bytes --] Hi On Thu, Aug 21, 2025 at 01:32:02PM +0200, Michael Niedermayer via ffmpeg-devel wrote: > Hi > > Should we use a Merge or Cherry picks for integrating Pauls work ? > > Following are 2 plans, as we execute either we may run into issues > and of course adapt them as needed. (or even switch) If neither Cherry picking nor Merging is choosen then I will remove my STF proposal about that work before 1. September (unless the deadline is extended). Without that funding, i cannot offer going through individual modules. That means someone else would need to volunteer doing this work to have the "Cherry pick" option in the future. (also consider code divergence with a future funding round) For the "Merge" option, similarly, the loss of STF funding would mean a loss of (funded) "per module" work. "Merge" will stay available from me but without per module work. (someone else would have to do per module work, or no per module work would be done) OTOH with the Integration of pauls code, i will spend more time on FFmpeg in the next 12 months, i would continue doing the fuzzing work as good as i can and i will try to get the 8.1 release done in the next 3 months if people want that. Without the integration of the code, I will likely loose alot of my motivation to contribute. I hope "D" (if its choosen) will stand for Discussion and not Decline or even eventual Death of FFmpeg. thx -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB I have never wished to cater to the crowd; for what I know they do not approve, and what they approve I do not know. -- Epicurus [-- Attachment #1.2: signature.asc --] [-- Type: application/pgp-signature, Size: 195 bytes --] [-- Attachment #2: Type: text/plain, Size: 251 bytes --] _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe". ^ permalink raw reply [flat|nested] 19+ messages in thread
* Re: [FFmpeg-devel] Legal Advice Was: [POLL][RFC] Merge vs Cherry pick for integration of changes 2025-08-21 11:32 [FFmpeg-devel] [POLL][RFC] Merge vs Cherry pick for integration of changes Michael Niedermayer via ffmpeg-devel ` (2 preceding siblings ...) 2025-08-23 13:20 ` Michael Niedermayer via ffmpeg-devel @ 2025-08-23 20:33 ` Michael Niedermayer via ffmpeg-devel 2025-08-24 6:53 ` Kieran Kunhya via ffmpeg-devel 2025-08-24 10:59 ` [FFmpeg-devel] " Michael Niedermayer via ffmpeg-devel 4 siblings, 1 reply; 19+ messages in thread From: Michael Niedermayer via ffmpeg-devel @ 2025-08-23 20:33 UTC (permalink / raw) To: FFmpeg development discussions and patches; +Cc: Michael Niedermayer [-- Attachment #1.1: Type: text/plain, Size: 1729 bytes --] Hi Here is the legal advice that i was given. The GA has the full text and that is much more detailed. Iam posting the relevant parts so the whole community can see it. "a claim that there is GPLv2 code in a file of FFmpeg origin that has the LGPLv2.1 license would be a breach of the FFmpeg's LGPLv2.1 license. While section 3 of the LGPLv2.1 would have allowed him to take the original FFmpeg files and change the license for them to GPLv2, he didn't follow the necessary steps to effectively change the license. So the original code he is building from is still under LGPLv2.1. Since code contributions to a copyleft work have to be under the /same /license as the code you are contributing to (Section 2(c), "You must cause the whole of the work to be licensed at no charge to all third parties under the terms of this License"), Paul's contributions to LGPLv2.1 files are under the LGPLv2.1 license because he didn't exercise the option to change them to GPLv2 first. A claim otherwise would be admitting he is in breach of the FFmpeg license." "You can safely assume that any new file he created with a license identifier in the file of LGPLv.2.1 is under the LGPLv2.1 license." "Paul's response to your use of his code may be to relicense his code under the AGPL,* but he cannot change the license retroactively - you would have to accommodate the AGPL license for any later changes you adopt, but not for any code you are using from before a license change." thx [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB I know you won't believe me, but the highest form of Human Excellence is to question oneself and others. -- Socrates [-- Attachment #1.2: signature.asc --] [-- Type: application/pgp-signature, Size: 195 bytes --] [-- Attachment #2: Type: text/plain, Size: 251 bytes --] _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe". ^ permalink raw reply [flat|nested] 19+ messages in thread
* Re: [FFmpeg-devel] Legal Advice Was: [POLL][RFC] Merge vs Cherry pick for integration of changes 2025-08-23 20:33 ` [FFmpeg-devel] Legal Advice Was: " Michael Niedermayer via ffmpeg-devel @ 2025-08-24 6:53 ` Kieran Kunhya via ffmpeg-devel 2025-08-24 10:56 ` Michael Niedermayer via ffmpeg-devel 0 siblings, 1 reply; 19+ messages in thread From: Kieran Kunhya via ffmpeg-devel @ 2025-08-24 6:53 UTC (permalink / raw) To: FFmpeg development discussions and patches; +Cc: Kieran Kunhya On Sat, 23 Aug 2025, 21:33 Michael Niedermayer via ffmpeg-devel, < ffmpeg-devel@ffmpeg.org> wrote: > Hi > > Here is the legal advice that i was given. > The GA has the full text and that is much more detailed. > Iam posting the relevant parts so the whole community can see it. > > "a claim that there is GPLv2 code in a file of > FFmpeg origin that has the LGPLv2.1 license would be a breach of the > FFmpeg's > LGPLv2.1 license. While section 3 of the LGPLv2.1 would have allowed him > to > take the original FFmpeg files and change the license for them to GPLv2, > he > didn't follow the necessary steps to effectively change the license. So > the > original code he is building from is still under LGPLv2.1. Since code > contributions to a copyleft work have to be under the /same /license as > the > code you are contributing to (Section 2(c), "You must cause the whole of > the > work to be licensed at no charge to all third parties under the terms of > this > License"), Paul's contributions to LGPLv2.1 files are under the LGPLv2.1 > license because he didn't exercise the option to change them to GPLv2 > first. A > claim otherwise would be admitting he is in breach of the FFmpeg license." > > "You can safely assume that any new file he created with a license > identifier in the file of LGPLv.2.1 is under the LGPLv2.1 license." > > "Paul's response to your use of his code may be to relicense his code under > the AGPL,* but he cannot change the license retroactively - you would > have to > accommodate the AGPL license for any later changes you adopt, but not for > any > code you are using from before a license change." > > thx > > [...] > Can you confirm the FFlabs lawyer said something different? And so you went to another one until you got the answer you wanted? Kieran > _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe". ^ permalink raw reply [flat|nested] 19+ messages in thread
* Re: [FFmpeg-devel] Legal Advice Was: [POLL][RFC] Merge vs Cherry pick for integration of changes 2025-08-24 6:53 ` Kieran Kunhya via ffmpeg-devel @ 2025-08-24 10:56 ` Michael Niedermayer via ffmpeg-devel 2025-08-24 11:11 ` Kieran Kunhya via ffmpeg-devel 0 siblings, 1 reply; 19+ messages in thread From: Michael Niedermayer via ffmpeg-devel @ 2025-08-24 10:56 UTC (permalink / raw) To: FFmpeg development discussions and patches; +Cc: Michael Niedermayer [-- Attachment #1.1: Type: text/plain, Size: 2553 bytes --] Hi Kieran On Sun, Aug 24, 2025 at 07:53:45AM +0100, Kieran Kunhya via ffmpeg-devel wrote: > On Sat, 23 Aug 2025, 21:33 Michael Niedermayer via ffmpeg-devel, < > ffmpeg-devel@ffmpeg.org> wrote: > > > Hi > > > > Here is the legal advice that i was given. > > The GA has the full text and that is much more detailed. > > Iam posting the relevant parts so the whole community can see it. > > > > "a claim that there is GPLv2 code in a file of > > FFmpeg origin that has the LGPLv2.1 license would be a breach of the > > FFmpeg's > > LGPLv2.1 license. While section 3 of the LGPLv2.1 would have allowed him > > to > > take the original FFmpeg files and change the license for them to GPLv2, > > he > > didn't follow the necessary steps to effectively change the license. So > > the > > original code he is building from is still under LGPLv2.1. Since code > > contributions to a copyleft work have to be under the /same /license as > > the > > code you are contributing to (Section 2(c), "You must cause the whole of > > the > > work to be licensed at no charge to all third parties under the terms of > > this > > License"), Paul's contributions to LGPLv2.1 files are under the LGPLv2.1 > > license because he didn't exercise the option to change them to GPLv2 > > first. A > > claim otherwise would be admitting he is in breach of the FFmpeg license." > > > > "You can safely assume that any new file he created with a license > > identifier in the file of LGPLv.2.1 is under the LGPLv2.1 license." > > > > "Paul's response to your use of his code may be to relicense his code under > > the AGPL,* but he cannot change the license retroactively - you would > > have to > > accommodate the AGPL license for any later changes you adopt, but not for > > any > > code you are using from before a license change." > > > > thx > > > > [...] > > > > Can you confirm the FFlabs lawyer said something different? I cannot confirm this. I dont remember ever seeing the reply or the question. My communication with the FFlabs lawyer was through a intermediary developer, who was very busy and the mails where also terse IIRC i also had to ask multiple times to get any awnser > And so you went > to another one until you got the answer you wanted? [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB No human being will ever know the Truth, for even if they happen to say it by chance, they would not even known they had done so. -- Xenophanes [-- Attachment #1.2: signature.asc --] [-- Type: application/pgp-signature, Size: 195 bytes --] [-- Attachment #2: Type: text/plain, Size: 251 bytes --] _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe". ^ permalink raw reply [flat|nested] 19+ messages in thread
* Re: [FFmpeg-devel] Legal Advice Was: [POLL][RFC] Merge vs Cherry pick for integration of changes 2025-08-24 10:56 ` Michael Niedermayer via ffmpeg-devel @ 2025-08-24 11:11 ` Kieran Kunhya via ffmpeg-devel 2025-08-24 12:08 ` Michael Niedermayer via ffmpeg-devel 0 siblings, 1 reply; 19+ messages in thread From: Kieran Kunhya via ffmpeg-devel @ 2025-08-24 11:11 UTC (permalink / raw) To: FFmpeg development discussions and patches Cc: Kieran Kunhya, Michael Niedermayer On Sun, 24 Aug 2025, 11:56 Michael Niedermayer via ffmpeg-devel, < ffmpeg-devel@ffmpeg.org> wrote: > Hi Kieran > > On Sun, Aug 24, 2025 at 07:53:45AM +0100, Kieran Kunhya via ffmpeg-devel > wrote: > > On Sat, 23 Aug 2025, 21:33 Michael Niedermayer via ffmpeg-devel, < > > ffmpeg-devel@ffmpeg.org> wrote: > > > > > Hi > > > > > > Here is the legal advice that i was given. > > > The GA has the full text and that is much more detailed. > > > Iam posting the relevant parts so the whole community can see it. > > > > > > "a claim that there is GPLv2 code in a file of > > > FFmpeg origin that has the LGPLv2.1 license would be a breach of the > > > FFmpeg's > > > LGPLv2.1 license. While section 3 of the LGPLv2.1 would have allowed > him > > > to > > > take the original FFmpeg files and change the license for them to > GPLv2, > > > he > > > didn't follow the necessary steps to effectively change the license. > So > > > the > > > original code he is building from is still under LGPLv2.1. Since code > > > contributions to a copyleft work have to be under the /same /license > as > > > the > > > code you are contributing to (Section 2(c), "You must cause the whole > of > > > the > > > work to be licensed at no charge to all third parties under the terms > of > > > this > > > License"), Paul's contributions to LGPLv2.1 files are under the > LGPLv2.1 > > > license because he didn't exercise the option to change them to GPLv2 > > > first. A > > > claim otherwise would be admitting he is in breach of the FFmpeg > license." > > > > > > "You can safely assume that any new file he created with a license > > > identifier in the file of LGPLv.2.1 is under the LGPLv2.1 license." > > > > > > "Paul's response to your use of his code may be to relicense his code > under > > > the AGPL,* but he cannot change the license retroactively - you would > > > have to > > > accommodate the AGPL license for any later changes you adopt, but not > for > > > any > > > code you are using from before a license change." > > > > > > thx > > > > > > [...] > > > > > > > Can you confirm the FFlabs lawyer said something different? > > I cannot confirm this. I dont remember ever seeing the reply or the > question. > > My communication with the FFlabs lawyer was through a intermediary > developer, > who was very busy and the mails where also terse > > IIRC i also had to ask multiple times to get any awnser > Translation: The FFlabs lawyer didn't agree with my agenda and so I went and found one that did. It's funny how you are reluctant to post that lawyers opinion [because it didn't agree with you] when you happily leak private discussions (e.g from the CC) on this list all the time. To use Anton's words "tin-pot dictator" behaviour in action. Kieran > _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe". ^ permalink raw reply [flat|nested] 19+ messages in thread
* Re: [FFmpeg-devel] Legal Advice Was: [POLL][RFC] Merge vs Cherry pick for integration of changes 2025-08-24 11:11 ` Kieran Kunhya via ffmpeg-devel @ 2025-08-24 12:08 ` Michael Niedermayer via ffmpeg-devel 2025-08-24 12:17 ` Kieran Kunhya via ffmpeg-devel 0 siblings, 1 reply; 19+ messages in thread From: Michael Niedermayer via ffmpeg-devel @ 2025-08-24 12:08 UTC (permalink / raw) To: FFmpeg development discussions and patches; +Cc: Michael Niedermayer [-- Attachment #1.1: Type: text/plain, Size: 5096 bytes --] Hi Kieran On Sun, Aug 24, 2025 at 12:11:20PM +0100, Kieran Kunhya via ffmpeg-devel wrote: > On Sun, 24 Aug 2025, 11:56 Michael Niedermayer via ffmpeg-devel, < > ffmpeg-devel@ffmpeg.org> wrote: > > > Hi Kieran > > > > On Sun, Aug 24, 2025 at 07:53:45AM +0100, Kieran Kunhya via ffmpeg-devel > > wrote: > > > On Sat, 23 Aug 2025, 21:33 Michael Niedermayer via ffmpeg-devel, < > > > ffmpeg-devel@ffmpeg.org> wrote: > > > > > > > Hi > > > > > > > > Here is the legal advice that i was given. > > > > The GA has the full text and that is much more detailed. > > > > Iam posting the relevant parts so the whole community can see it. > > > > > > > > "a claim that there is GPLv2 code in a file of > > > > FFmpeg origin that has the LGPLv2.1 license would be a breach of the > > > > FFmpeg's > > > > LGPLv2.1 license. While section 3 of the LGPLv2.1 would have allowed > > him > > > > to > > > > take the original FFmpeg files and change the license for them to > > GPLv2, > > > > he > > > > didn't follow the necessary steps to effectively change the license. > > So > > > > the > > > > original code he is building from is still under LGPLv2.1. Since code > > > > contributions to a copyleft work have to be under the /same /license > > as > > > > the > > > > code you are contributing to (Section 2(c), "You must cause the whole > > of > > > > the > > > > work to be licensed at no charge to all third parties under the terms > > of > > > > this > > > > License"), Paul's contributions to LGPLv2.1 files are under the > > LGPLv2.1 > > > > license because he didn't exercise the option to change them to GPLv2 > > > > first. A > > > > claim otherwise would be admitting he is in breach of the FFmpeg > > license." > > > > > > > > "You can safely assume that any new file he created with a license > > > > identifier in the file of LGPLv.2.1 is under the LGPLv2.1 license." > > > > > > > > "Paul's response to your use of his code may be to relicense his code > > under > > > > the AGPL,* but he cannot change the license retroactively - you would > > > > have to > > > > accommodate the AGPL license for any later changes you adopt, but not > > for > > > > any > > > > code you are using from before a license change." > > > > > > > > thx > > > > > > > > [...] > > > > > > > > > > Can you confirm the FFlabs lawyer said something different? > > > > I cannot confirm this. I dont remember ever seeing the reply or the > > question. > > > > My communication with the FFlabs lawyer was through a intermediary > > developer, > > who was very busy and the mails where also terse > > > > IIRC i also had to ask multiple times to get any awnser > > > > Translation: The FFlabs lawyer didn't agree with my agenda and so I went > and found one that did. > > It's funny how you are reluctant to post that lawyers opinion [because it > didn't agree with you] when you happily leak private discussions (e.g from > the CC) on this list all the time. > > To use Anton's words "tin-pot dictator" behaviour in action. Date: Sun, 08 Jun 2025 14:40:25 +0200 From: Jean-Baptiste Kempf <jb@videolan.org> To: Michael Niedermayer <michael@niedermayer.cc> Subject: Re: License question Hello, Lawyer says that, most likely,the COPYING file that comes after (newer) than the headers of the file prevails. So all his changes are GPLv2. :( BEst, On Sat, 7 Jun 2025, at 15:31, Michael Niedermayer wrote: > Hi jb > > any news ? > have you had time to ask the lawyer ? > > Its bad for FFmpeg to lack features that our competitors have. > (and thus also bad for FFlabs) > > librempeg has 36 decoders that FFmpeg does not have, id like to > get these into FFmpeg and even after the lawyer reply it will > still need likely a vote between cherry picking vs merging > > thx > > On Mon, Jun 02, 2025 at 10:34:27PM +0200, Michael Niedermayer wrote: >> Hi jb >> >> On Mon, Jun 02, 2025 at 09:50:53PM +0200, Jean-Baptiste Kempf wrote: >> > Hello, >> > >> > "All Librempeg modifications, and any new files >> > not available in FFmpeg, are licensed under GPL v2, unless stated >> > otherwise." >> > >> > Where is that from? >> >> git show paul/master:LICENSE.md >> >> the files themselfs contain unmodified LGPL headers >> >> thx >> >> [...] >> -- >> Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB >> >> I have often repented speaking, but never of holding my tongue. >> -- Xenocrates > > > > -- > Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB > > Those who would give up essential Liberty, to purchase a little > temporary Safety, deserve neither Liberty nor Safety -- Benjamin Franklin > > Attachments: > * signature.asc -- Jean-Baptiste Kempf - President +33 672 704 734 https://jbkempf.com/ [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB it is not once nor twice but times without number that the same ideas make their appearance in the world. -- Aristotle [-- Attachment #1.2: signature.asc --] [-- Type: application/pgp-signature, Size: 195 bytes --] [-- Attachment #2: Type: text/plain, Size: 251 bytes --] _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe". ^ permalink raw reply [flat|nested] 19+ messages in thread
* Re: [FFmpeg-devel] Legal Advice Was: [POLL][RFC] Merge vs Cherry pick for integration of changes 2025-08-24 12:08 ` Michael Niedermayer via ffmpeg-devel @ 2025-08-24 12:17 ` Kieran Kunhya via ffmpeg-devel 0 siblings, 0 replies; 19+ messages in thread From: Kieran Kunhya via ffmpeg-devel @ 2025-08-24 12:17 UTC (permalink / raw) To: FFmpeg development discussions and patches Cc: Kieran Kunhya, Michael Niedermayer On Sun, 24 Aug 2025, 13:09 Michael Niedermayer via ffmpeg-devel, < ffmpeg-devel@ffmpeg.org> wrote: > Hi Kieran > > On Sun, Aug 24, 2025 at 12:11:20PM +0100, Kieran Kunhya via ffmpeg-devel > wrote: > > On Sun, 24 Aug 2025, 11:56 Michael Niedermayer via ffmpeg-devel, < > > ffmpeg-devel@ffmpeg.org> wrote: > > > > > Hi Kieran > > > > > > On Sun, Aug 24, 2025 at 07:53:45AM +0100, Kieran Kunhya via > ffmpeg-devel > > > wrote: > > > > On Sat, 23 Aug 2025, 21:33 Michael Niedermayer via ffmpeg-devel, < > > > > ffmpeg-devel@ffmpeg.org> wrote: > > > > > > > > > Hi > > > > > > > > > > Here is the legal advice that i was given. > > > > > The GA has the full text and that is much more detailed. > > > > > Iam posting the relevant parts so the whole community can see it. > > > > > > > > > > "a claim that there is GPLv2 code in a file of > > > > > FFmpeg origin that has the LGPLv2.1 license would be a breach of > the > > > > > FFmpeg's > > > > > LGPLv2.1 license. While section 3 of the LGPLv2.1 would have > allowed > > > him > > > > > to > > > > > take the original FFmpeg files and change the license for them to > > > GPLv2, > > > > > he > > > > > didn't follow the necessary steps to effectively change the > license. > > > So > > > > > the > > > > > original code he is building from is still under LGPLv2.1. Since > code > > > > > contributions to a copyleft work have to be under the /same > /license > > > as > > > > > the > > > > > code you are contributing to (Section 2(c), "You must cause the > whole > > > of > > > > > the > > > > > work to be licensed at no charge to all third parties under the > terms > > > of > > > > > this > > > > > License"), Paul's contributions to LGPLv2.1 files are under the > > > LGPLv2.1 > > > > > license because he didn't exercise the option to change them to > GPLv2 > > > > > first. A > > > > > claim otherwise would be admitting he is in breach of the FFmpeg > > > license." > > > > > > > > > > "You can safely assume that any new file he created with a license > > > > > identifier in the file of LGPLv.2.1 is under the LGPLv2.1 > license." > > > > > > > > > > "Paul's response to your use of his code may be to relicense his > code > > > under > > > > > the AGPL,* but he cannot change the license retroactively - you > would > > > > > have to > > > > > accommodate the AGPL license for any later changes you adopt, but > not > > > for > > > > > any > > > > > code you are using from before a license change." > > > > > > > > > > thx > > > > > > > > > > [...] > > > > > > > > > > > > > Can you confirm the FFlabs lawyer said something different? > > > > > > I cannot confirm this. I dont remember ever seeing the reply or the > > > question. > > > > > > My communication with the FFlabs lawyer was through a intermediary > > > developer, > > > who was very busy and the mails where also terse > > > > > > IIRC i also had to ask multiple times to get any awnser > > > > > > > Translation: The FFlabs lawyer didn't agree with my agenda and so I went > > and found one that did. > > > > It's funny how you are reluctant to post that lawyers opinion [because it > > didn't agree with you] when you happily leak private discussions (e.g > from > > the CC) on this list all the time. > > > > To use Anton's words "tin-pot dictator" behaviour in action. > > Date: Sun, 08 Jun 2025 14:40:25 +0200 > From: Jean-Baptiste Kempf <jb@videolan.org> > To: Michael Niedermayer <michael@niedermayer.cc> > Subject: Re: License question > > Hello, > > Lawyer says that, most likely,the COPYING file that comes after (newer) > than the headers of the file prevails. > So all his changes are GPLv2. :( > > BEst, > > On Sat, 7 Jun 2025, at 15:31, Michael Niedermayer wrote: > > Hi jb > > > > any news ? > > have you had time to ask the lawyer ? > > > > Its bad for FFmpeg to lack features that our competitors have. > > (and thus also bad for FFlabs) > > > > librempeg has 36 decoders that FFmpeg does not have, id like to > > get these into FFmpeg and even after the lawyer reply it will > > still need likely a vote between cherry picking vs merging > > > > thx > > > > On Mon, Jun 02, 2025 at 10:34:27PM +0200, Michael Niedermayer wrote: > >> Hi jb > >> > >> On Mon, Jun 02, 2025 at 09:50:53PM +0200, Jean-Baptiste Kempf wrote: > >> > Hello, > >> > > >> > "All Librempeg modifications, and any new files > >> > not available in FFmpeg, are licensed under GPL v2, unless stated > >> > otherwise." > >> > > >> > Where is that from? > >> > >> git show paul/master:LICENSE.md > >> > >> the files themselfs contain unmodified LGPL headers > >> > >> thx > >> > >> [...] > >> -- > >> Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB > >> > >> I have often repented speaking, but never of holding my tongue. > >> -- Xenocrates > > > > > > > > -- > > Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB > > > > Those who would give up essential Liberty, to purchase a little > > temporary Safety, deserve neither Liberty nor Safety -- Benjamin Franklin > > > > Attachments: > > * signature.asc > > -- > Jean-Baptiste Kempf - President > +33 672 704 734 > https://jbkempf.com/ > > > [...] > Thank you for confirming there is a major element of legal ambiguity in merging Paul's code as LGPL. Not to mention moral concerns. Kieran > _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe". ^ permalink raw reply [flat|nested] 19+ messages in thread
* Re: [FFmpeg-devel] [POLL][RFC] Merge vs Cherry pick for integration of changes 2025-08-21 11:32 [FFmpeg-devel] [POLL][RFC] Merge vs Cherry pick for integration of changes Michael Niedermayer via ffmpeg-devel ` (3 preceding siblings ...) 2025-08-23 20:33 ` [FFmpeg-devel] Legal Advice Was: " Michael Niedermayer via ffmpeg-devel @ 2025-08-24 10:59 ` Michael Niedermayer via ffmpeg-devel 4 siblings, 0 replies; 19+ messages in thread From: Michael Niedermayer via ffmpeg-devel @ 2025-08-24 10:59 UTC (permalink / raw) To: FFmpeg development discussions and patches; +Cc: Michael Niedermayer [-- Attachment #1.1: Type: text/plain, Size: 1695 bytes --] Hi On Thu, Aug 21, 2025 at 01:32:02PM +0200, Michael Niedermayer via ffmpeg-devel wrote: > Hi > > Should we use a Merge or Cherry picks for integrating Pauls work ? > > Following are 2 plans, as we execute either we may run into issues > and of course adapt them as needed. (or even switch) > > Option M: > This would be a merge of pauls last revission before files where > switched to GPL and the command line tool to AGPL > > It would include all changes (except what is intentionally skiped) > (This will look similar to how almpeg looks now) > > Fate tests would be added after the merge where sample media is > publically available on our server. > Reviews of Individual modules can be done after the merge where > people want to do that. > > Option C: > Individual Modules (Codecs, Filters, Demuxers) would be submitted > as patch(sets) > > This would include only the picked changes. Changes noone picks and > posts would be missing. > > Each would go through the review process (some likely with "apply > after timeout"). And during that review fate tests would be added > where public samples are on our server. > > M would likely integrate more changes, C less changes. C may be more work. "M", (probably) less work than "C" and iam lazy. But 100% happy to change my vote to "C", if thats what the majority preferrs thx [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB The difference between a dictatorship and a democracy is that every 4 years the population together is allowed to provide 1 bit of input to the government. [-- Attachment #1.2: signature.asc --] [-- Type: application/pgp-signature, Size: 195 bytes --] [-- Attachment #2: Type: text/plain, Size: 251 bytes --] _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe". ^ permalink raw reply [flat|nested] 19+ messages in thread
end of thread, other threads:[~2025-08-24 12:17 UTC | newest] Thread overview: 19+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2025-08-21 11:32 [FFmpeg-devel] [POLL][RFC] Merge vs Cherry pick for integration of changes Michael Niedermayer via ffmpeg-devel 2025-08-21 16:56 ` Kieran Kunhya via ffmpeg-devel 2025-08-21 17:53 ` Michael Niedermayer via ffmpeg-devel 2025-08-21 17:58 ` Kieran Kunhya via ffmpeg-devel 2025-08-22 12:29 ` Niklas Haas via ffmpeg-devel 2025-08-22 12:45 ` Diederick C. Niehorster via ffmpeg-devel 2025-08-22 12:59 ` Michael Niedermayer via ffmpeg-devel 2025-08-23 7:09 ` Rémi Denis-Courmont via ffmpeg-devel 2025-08-23 10:58 ` Michael Niedermayer via ffmpeg-devel 2025-08-23 12:59 ` Kieran Kunhya via ffmpeg-devel 2025-08-22 13:45 ` Michael Niedermayer via ffmpeg-devel 2025-08-23 13:20 ` Michael Niedermayer via ffmpeg-devel 2025-08-23 20:33 ` [FFmpeg-devel] Legal Advice Was: " Michael Niedermayer via ffmpeg-devel 2025-08-24 6:53 ` Kieran Kunhya via ffmpeg-devel 2025-08-24 10:56 ` Michael Niedermayer via ffmpeg-devel 2025-08-24 11:11 ` Kieran Kunhya via ffmpeg-devel 2025-08-24 12:08 ` Michael Niedermayer via ffmpeg-devel 2025-08-24 12:17 ` Kieran Kunhya via ffmpeg-devel 2025-08-24 10:59 ` [FFmpeg-devel] " Michael Niedermayer via ffmpeg-devel
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