Media on a prim testing

[animats]

I've been trying different video sources with Media on a Prim. Firestorm 6.0.1, Ubuntu Linux 16.04LTS x86 64 bit. The results are amusing.

• Youtube video - video plays, but audio does not. Known bug.
• Embedded streaming MP4 file on video test page - video plays immediately, no audio. Known bug.
• Same content, raw MP4 url - entire file must download, then plays perfectly including audio. Repeats.
• Same content, raw WEBM url - video plays immediately, no audio.
• Same content, raw OGG url - video plays immediately, no audio.
• Oldsmobile ad from 1944, raw MP4 URL from Internet Archive - entire file must download, then plays including audio. Firestorm crashed once.
• Same content, raw OGG URL - video plays immediately, no audio.
• Same content, raw H.264 URL - entire file must download, then plays including audio. Repeats.

Youtube does some obfuscation to make play of embedded files hard. But the Internet Archive and the test page don't.  So those should work.

Is there any streaming format that works right, with both audio and video?

[Qie Niangao]

I think you'll find that Linux audio is insanely distro-specific, and not at all limited to SL. There have been too many different competing audio packages and none of them have ever worked reliably across formats. It's one reason I lost patience with the whole debacle and relegated Linux to file-server-only use a few years back.

That said, the whole media playback thing is a horrific mess, not only for MoaP and not just on Linux. Try using PARCEL_MEDIA_COMMAND_TIME to specify the start time for playback: it works for some streams in some formats on some releases of some platforms, with no apparent pattern to what works and what doesn't, other than Linux usually doesn't.

[hombra]

Now that I have thought it through I don't think your problem has anything to do with proprietary codecs or OpenAL.

Edited January 3, 2019 by hombra
I think everything I said is wrong