[theora-dev] Theora file size
dvdkhlng at gmx.de
Sat Oct 7 08:43:29 PDT 2006
>>>>> "Unga" == Unga <unga888 at yahoo.com> writes:
> Y4M is YUV4MPEG2, which is YUV12.
> ./encoder_example -o movie.ogg -v 10 movie.y4m
Yes, I later realized that Y4M could actually mean Yuv4Mpeg :)
>> BTW there is a hidden option in encoder_example that allows trading
>> file size for sharpness. Might be a good idea to sacrifice some
>> sharpness for HDTV content. Also you can increase the keyframe
>> distance. I attach the patch of my local copy of encoder_example.c,
>> that was "tuned" that way.
> I have applied your patch. I even made ti.quick_p=0. But result is
> still the same:
> movie.ogg 61742755 bytes
Then something seems quite wrong with your setup. BTW which theora
version are you using?
> movie-192-256.ogg 61742755 bytes
> Is there a way to know either from the movie or from the
> encoder_example what are its keyframe_frequency and
> keyframe_frequency_force values?
Maybe you could try to run from GDB and look at the contents of 'ti'?
If I have some time, I'll see how my local encoder_example copes with
GnuPG public key: http://user.cs.tu-berlin.de/~dvdkhlng/dk.gpg
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