creating preview x264 + ffmpeg question

[yari]

lets say i have several dvds. I want to use x264 library, and use ffmpeg to create previews.

now heres my question, if i want to create a 60 second clip from the dvd, is it resource intensive to say produce this short clip from middle of the movie vs. the first 60 seconds of the clip.

for example.

Hour: Minute : Second

creating a clip @ 01:40:00 ~ 01:41:00

vs.

creating a clip @ 00:00:00 ~ 00:59:00

will it take the computer take up more resource to do the first option? im thinking that it will....since it will take time to seek to that time frame....or maybe not. if there is a difference, is it significant enough?

Thank you.

[45tripp]

will it take the computer take up more resource to do the first option? im thinking that it will....since it will take time to seek to that time frame....or maybe not. if there is a difference, is it significant enough?


it will, and that's precisely the reason.
it's significant


tripp

[yari]

wow thanks for the quick answer.

what about the file size....

for instance creating 60 second clip from a 100mb movie vs. 60 second clip from a 4.7gb movie file.

there shouldn't be much difference....or is there ?

[LoRd_MuldeR]

if i want to create a 60 second clip from the dvd, is it resource intensive to say produce this short clip from middle of the movie vs. the first 60 seconds of the clip.

The time that will be spend to seek to the start position is negligible, compared to the time that is spend for encoding the clip...