[Vorbis] help

[Nagaraj.CG at flextronicssoftware.com]

 I am doing Ogg player ,where i am using standard Ogg parser from your 
side and Decoder is separate entity which is not from your side,
I have different API's in Decoder they are Create,Reset,Delete Decoder,Get 
Code Book,Get Comment Book,Decode Packet etc...........
Now i am able to play the song with your Parser and our Decoder.
I want to implement Forward and Backward but without  your using Parser 
API,because up to now i was using "granular position " obtained from 
parser API
 to implement FW and BW ,where i have to use File read API ,which is 
consuming more time to read from file which is not diserable to us.
So i want to use only file seek functionality in forward and backward.
So i am planning to use this formula

present_require_file_offset = (total_file_size * 20 
)/Total_time_of_stream(which i know)

If i seek my file pointer to value of "present_require_file_offset" 
,whether i will be at 20 sec duration of song or not,I know it cant be 
accurate ,but it is ok for
me if i am at 19th or 21st second also.

Is it ok if i use this formula,is there is any other way for this,kindly 
reply to this as early as possible.

Nagaraj C L
Flextronics Software System
Desk: 41069445
Mobile:9886695116

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