transcode

> i use the file Transcode.java from this link:

OK.. That might transform (for example) a

MOV to an AVI, there are a variety of reasons

you might want to transcode one format/codec

to another.

- The client can only read particular formats, so

we produce a type they can view.

- The target format is more compressed than

the original format (again, usually for delivery

to clients).

> but can any one tell me what they mean by

> audioformat and videoformat ,

AudioFormats might be linear or 'mu-law'..

Video formats might be YUV-12, RGB, H263..

There are a multitude of video and audio formats,

each with their own strengths and weaknesses,

some more suited to high compression for

transmission or storage, while others specialise

in high fidelity and clear images.

>..and how can

> i choose the suitable format.?

It is a complex area that is hard to sum up in

a few words, but the best way to get a feel for

the formats is to take a high quality animation

and convert it to a variety of formats and types

to get a feel for the file sizes and resulting

quality of the converted video.

For this task, JMStudio is great, as you can load

the original video, then select output types from

the choices provided on 'Export' - to test a variety

of audio and video formats.

590366AndrewThompson64a at 2007-7-7 14:58:43 >