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Old 6th November 2019, 19:46   #21  |  Link
filler56789
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Quote:
Originally Posted by LuigiVann View Post
hey Valgor, can we get an update about the latest libtheora from you and when the next one will be?
Two things:

1) about valgor:

Last Activity: 14th July 2012 17:13

2) Nobody uses Theora anymore.
But if you want to use it anyway, I recommend that you encode with ffmpeg2theora and then remux the video into an .AVI file with ffmpeg. Theora doesn't have B-frames so the remux will work well even with the VfW interface.
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Old 7th November 2019, 05:28   #22  |  Link
Blue_MiSfit
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I really wonder if there's a single use case for Theora today, even for legacy applications.

Did it ever have hardware support? Even VP8 got some hardware support, so that would be a much better choice if you need a royalty free codec on some old hardware.
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Old 7th November 2019, 13:55   #23  |  Link
Liisachan
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Quote:
Originally Posted by filler56789 View Post
2) Nobody uses Theora anymore.
But if you want to use it anyway, I recommend that you encode with ffmpeg2theora and then remux the video into an .AVI file with ffmpeg. Theora doesn't have B-frames so the remux will work well even with the VfW interface.
Just fyi: when I tested theora long time ago, I used Theora Win32 Binary like this:

encoder_example -o output.ogg -v 3 -a 5 input.wav input.yuv

which generated (theora+vorbis).ogg iirc. It was (perhaps still is) also possible for VLC to write theora+vorbis.ogg and even theora+flac.ogg. And back then, there was Helix Player too, supporting Theora out-of-box.

But that's history, we better move on... although, it would have been fantastic if Theora had become a patent-free codec with x264-like quality.
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Old 9th December 2019, 23:27   #24  |  Link
benwaggoner
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Quote:
Originally Posted by Liisachan View Post
Just fyi: when I tested theora long time ago, I used Theora Win32 Binary like this:



encoder_example -o output.ogg -v 3 -a 5 input.wav input.yuv



which generated (theora+vorbis).ogg iirc. It was (perhaps still is) also possible for VLC to write theora+vorbis.ogg and even theora+flac.ogg. And back then, there was Helix Player too, supporting Theora out-of-box.



But that's history, we better move on... although, it would have been fantastic if Theora had become a patent-free codec with x264-like quality.
The big challenge is always that lots of great techniques are patented. AV1 and MPEG-5 EVC are two ways to approach that, but in the end VVC with its patented techniques remains the most technically promising forthcoming codec.

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