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2006 Oct 06
3
Theora file size
...Xvid files were
made from a y4m file. The resolution is 1280x720:
1. Xvid 17MB
2. Ogg/Theora Q7 31MB
3. Ogg/Theora Q8 38MB
4. Ogg/Theora Q9 49MB
5. Ogg/Theora Q10 61MB
The Xvid file was made using mencoder by 2 passes with
following options:
bitrate=2500:autoaspect:chroma_opt:vhq=4:bvhq=1:quant_type=mpeg:pass=1
The encoder_example was used to create Ogg/Theora
files.
It was noted y4m to Theora encoding was the fastest
that I have ever seen. The Q9 Ogg/Theora took only 2
minutes 35 seconds. But the files created were way too
large compared to Xvid. The Xvid quality was very
good, it may be...
2013 Aug 11
10
[PATCH 00/10] Add support for MPEG2 and VC-1 on VP3/VP4 for NV98-NVAF
As it turns out, with the proprietary firmware, the VP3 and VP4 interfaces are
identical. Furthermore, this is all already implemented for nvc0. So these
patches (a) move the easily sharable bits of the nvc0 implementation into the
nouveau directory, and then (b) implement the other parts in nv50. The
non-shared parts are still largely copies, but there are some differences, not
the least of which