Re: [xine-devel] Questions about frames

[Miguel F. <mi...@ce...>]

Hi,

On Wed, 2003-05-14 at 10:32, Olivier Tache wrote:
> Hello,
> 
> i'm totally new to Xine and i have to study it in order to decide if i 
> can use it in a research project. So i have some questions :
> 
> - is there something like a developer documentation/ hacking guide 
> somewhere?

yes, you should read the hacker's guide on our web page.
it's not 100% up to date, but it's an excelent starting point to
understand how it works.


> - is Xine able to do a frame by frame display for a DVD eg : pause the 
> playback then step one frame forwards or backwards?

depends.

- forwards step by step is supported but not on "player" mode. that is,
if you use some application like enix, that uses libxine for decoding
frames it will be able to get one at a time. if you use a normal
frontend like xine-ui, gxine, etc, you won't have the step-by-step
option.

- backwards playback: not possible.

> - what information about the current video position can i retrieve : 
> frame number? time from the beginning of the video (in seconds or better 
> precision) ? percentage?

frame number, precise time and percentage (of total input size) are all
supported. HOWEVER, this is entirely up to the demuxer you are using.
some of them do not know about frames while others can only give you a
guess of the time position.

for example, if you use AVI, both frame number and precise time are
available.

regards,

Miguel