Digesting all the suggestions here - thank you. Intrigued by Nicky's suggestion, I am currently trying to build CEF directly via Chromium - first attempt is without the extra flags (proprietary_codecs=1 ffmpeg_branding=Chrome). Building the branch in use in the viewer failed with a bunch of errors - fixable but there were just too many. Still not sure *why* it fails - I would expect specifying a branch would chckout and build a tagged point in the repo that built. Maybe because I'm on a slightly older Xcode and on 10.10 vs 10.11?
Now trying the tip for OS X /64bit (only have my OS X box with me today) - if this works (on 9856 of 15438 files) then I have high hopes we can build it with the flags switched on for the platforms and bit widths we care about. Do people agree that this would be the best solution? It would, I think play media URLs directly in the CEF plugin like Chrome does and of course, allow us to support embedded media. --Cal On Mon, May 16, 2016 at 1:41 PM, Callum Prentice (Callum) < cal...@lindenlab.com> wrote: > As many of you know, support for playing media in Second Life using > QuickTime is being removed after Apple announced in April 2016 that they > have no further plans to provide security updates for QuickTime for > Windows. This email is intended to be a solicitation for feedback and > review of a proposed replacement and hopefully some discussion around its' > merits, inadequacies and possible alternatives. > > A replacement media plugin for QuickTime needs to be created based on an > existing media playback SDK and mime_types.xml (etc.) updated to direct > appropriate media types (MPEG-4, MPG, MP3) at this new plugin. > > The two technologies that seemed like they might work were identified as > GStreamer and LibVLC. The former was an attractive option since that was > already used in the Linux viewer. The existing GStreamer media plugin code > was somewhat complex and unknown to me whereas playback of a stream in > LibVLC seemed very straightforward and I had toyed with it in the past. > > In order to get something working and provide something to base discussion > on, I forked viewer-release and made a new viewer that had QuickTime > removed and a new media plugin based on LibVLC here > <https://bitbucket.org/callum_linden/viewer-release-vlc>. Only the Win32 > implementation is filled out currently until we can collectively decide if > this is the right approach. > > I made a Linden autobuild VLC binary package that the new media code > (media_plugin_libvlc.cpp) consumes - currently using the latest version > (2.2.3). > > The limitations with this solution are: > > - I don't know how to resize the playback buffer once a stream starts > playing so if a media plugin resize message come in, I restart the stream > from the beginning. It is regrettable but not as big a concern as it would > be for say, web media where resizing is much more common. > - It doesn't appear to play back the QuickTime MOV files I have tried. > I'm still investigating whether that is expected behavior or not. > - If you click on a (say) link to an MPEG-4 movie from a web page that > is rendered using the CEF plugin, the media system is (currently) not able > to switch out the plugin implementation and play it - at the moment I think > the CEF plugin reports that this type of file must be downloaded. As far as > I know, this wasn't possible before though (clicking on link to QuickTime > movie would play in same media instance). > > Our legal department have given us clearance to use either GStreamer or > LibVLC as we see fit so that is not a concern. > > So what do we all think? Given the limited resources we have to throw at > this, is this approach good enough? If not, what are are the alternatives, > what are their advantages versus this one and how complex will they be to > implement? > > Many thanks in advance. > > -- > > CALLUM PRENTICE | Software Engineer > > LINDEN LAB | Create Virtual Experiences <http://www.lindenlab.com/> > -- CALLUM PRENTICE | Software Engineer LINDEN LAB | Create Virtual Experiences <http://www.lindenlab.com/>
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