Re: [Audacity-devel] mp3 export P2
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From: Leland <le...@au...> - 2008-12-29 21:23:19
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Quoting Gale Andrews <ga...@au...>: > > I don't see the licensing issue. The FFmpeg implementation of LAME > (libmp3lame) is LGPL, and the FFmpeg binary we're distributing does not > include anything licensed other than under GPL/LGPL. > As you say, there's really no licensing issues. All code is GPL or LGPL. However, that's just the code. But, some of the technologies that the code is providing "may" be covered by patents. By offshoring the binaries, we are basically offloading the responsibility of compliance to the user and some users may opt-in for lame, but opt-out for FFmpeg. (Though I don't think any would care much.) > > I don't see how we can distribute LAME inside FFmpeg for 1.2 users at > the moment without causing a lot of confusion. 1.2 users on Windows > need lame_enc.dll, not libmp3lame.dll (I assume)? And if we do this > for 1.3.7 onwards, is the proposal that the "MP3 files" filter goes, and > we have a new one "MP3 files (FFmpeg)", or both? > No, we'd have to keep the "native" MP3 filter since FFmpeg does not write the VBR tag and we would not have as much control over the lame parameters as we do now. > If we agree about the duplication (or not) of filters, then distributing LAME > in FFmpeg may be a good idea. It's one download, as you say, and it > provides us with a "LAME installer for Windows", which is an aim for 1.4. > But in fact, is it better not to make this change until we've got to 1.4, and > just rebuild the 3.98.2 LAME on Buanzo's site for now? > Rebuilding 3.98.2 will be the quickest and it might be the best way to go for 1.4 as you say. BTW: Is anyone working on the installer(s) yet? > Is the VBR issue worth fixing in iTunes, anyway? From what I read > Apple are being pressured to fix it, because iTunes can't even see the > length correctly in VBR MP3 files it encodes itself. Or are we saying that > this will fix length issues in VBR files for other apps. than iTunes, once > Windows builds of Audacity can actually export VBR files of the correct > bit rate and length? The fix should work for other apps as well. I know that Explorer->Properties displays the length correctly as well as Media Player. What others were having problems? Leland |