Hi all,
First of all kudos to all the developers for taking the efforts to
make theora (an open video format).
I am helping a group of people to get some uncompressed .avi's
transcoded/encoded to .ogg theora.
I was just reading something about the .flv format (the one which is
used in youtube)
"In .flv files the less change there is, the lower the bandwidth
demands & vice-versa"
Now if I know that my videos do not have much moving elements can I
get similar bandwidth savings in theora ?
If yes, how do I go about doing the same.
--
Regards,
Shirish Agarwal
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On Thu, Jul 9, 2009 at 9:46 AM, shirish<shirishag75 at gmail.com> wrote:> ? ? ? ?Thank you for getting back so quickly. How do I go about doing this ? > I need a link or webpage where this is spelled out how to do .I'd need to know how you're encoding to tell you what to do. There's a list of transcoding methods at https://wiki.mozilla.org/Theora for example. -r
On Thu, Jul 9, 2009 at 12:30 PM, shirish<shirishag75 at gmail.com> wrote:> I am helping a group of people to get some uncompressed .avi's > transcoded/encoded to .ogg theora. > > I was just reading something about the .flv format (the one which is > used in youtube) > > "In .flv files the less change there is, the lower the bandwidth > demands & vice-versa" > > Now if I know that my videos do not have much moving elements can I > get similar bandwidth savings in theora ?Yes; this is the basis of variable bit rate coding (VBR). In VBR, the codec attempts to hold the visual quality constant and use only as many bits as are needed to do so. Therefore, less complex scenes, especially scenes with less motion, require a lower rate. Theora is natively a VBR codec (in fact, most modern codecs are natively VBR and constant-rate modes are built on top). Monty