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ITU takes no position concerning the evidence, Involve the use of a claimed Intellectual Property Right. ITU draws attention to the possibility that the practice or implementation of this Recommendation may Rights in some jurisdictions, examples for such statements are: Hints that any conforming implementation might be subject to some patent What we do know is that various standards FFmpeg supports contain vague Such a question with a definite no, those who do lie. Impossible to read them all so no one (lawyer or not) could answer
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Furthermore the sheer number of software patents makes it So even if we were qualified we could not answer it as we do not know Also we have never read patents to implement any part of FFmpeg, If you use your imagination, you can visualize any dire scenario and ceaseĪ: We do not know, we are not lawyers so we are not qualified to answer Very little consideration is given to what could happen. Is based on precedent, or what has happened in the past under similarĬircumstances. Mini-FAQ attempts to address these issues.
Make sure your program is not using any GPL librariesįFmpeg is a trademark of Fabrice Bellard,Ī lot of legal questions surrounding patents arise when discussing multimedia. Go through all the items again for any LGPL external library you compiled. Prefix is fine (renaming "avcodec.dll" to "MyProgDec.dll" is not fine, but to Do not rename FFmpeg dlls to some obfuscated name, but adding a suffix or. Do not misspell FFmpeg (two capitals F and lowercase "mpeg"). Apply the same changes to all translations of your EULA. Remove any prohibition of reverse engineering from your EULA. Mention that you do not own FFmpeg, and where the relevant owners can be If your EULA claims ownership over the code, you have to explicitly. Mention in your EULA that your program uses FFmpeg under the LGPLv2.1. Mention "This software uses libraries from the FFmpeg project under the. #Dts decoder patent expiration code#
Add "This software uses code of FFmpeg licensed under the LGPLv2.1 and its source can be downloaded here" to every page in your website where there is a download link to your application. Host the FFmpeg source code on the same webserver as the binary you are. #Dts decoder patent expiration zip file#
Use tarball or a zip file for distributing the source code. Explain how you compiled FFmpeg, for example the configure line, in a textįile added to the root directory of the source code. Run the command "git diff > changes.diff" in the rootĭirectory of the FFmpeg source code to create a file with only the changes. Make sure the source code corresponds exactly to the library binaries. Distribute the source code of FFmpeg, no matter if you modified it or not. Use dynamic linking (on windows, this means linking to dlls) for linking. Compile FFmpeg without "-enable-gpl" and. To LGPL compliance but are good ideas anyway. There are also a few items that are not really related It is not the only way to comply with the license, but we The following is a checklist for LGPL compliance when linking against theįFmpeg libraries. Note that FFmpeg is not available under any other licensing terms,Įspecially not proprietary/commercial ones, not even in exchange for payment. #Dts decoder patent expiration license#
Read the license texts to learn how this affects programs built on top If those parts get used the GPL applies to all of FFmpeg. Incorporates several optional parts and optimizations that are covered by the
General Public License (LGPL) version 2.1 or later. The usual disclaimers apply, this is not legal advice. This is an attempt to clarify the most important issues. Legal issues are a constant source of questions and confusion.
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