[Ffmpeg-php-user] Slow frame search

[Alexey P. <pe...@gc...>]

I've found, that frame search in ffmpeg-php works only by looking
through all frames in the movie... It takes a lot of CPU time and disk
I/O's to just catch 1 frame from the middle of typical movie (700 MB),
which usual contain about 100'000 frames.
The solution is: seek to the nearest keyframe (by movie's index)
and start search for needed frame from that point. New function
getNextKeyFrame() from CVS-version doesn't help in that situation,
because uses full-search too... But I suppose, fast seek is
already realised in FFMPEG library.

PS: I write phpVideoBrowser, based on ffmpeg-php.
Implemented features:
- Browse files/dirs as on FTP server
- View tech. info about movies
- Catch random frames from movies (only from first 2000 frames because
of the subject)

Demo-site is here:
http://alexey.homeftp.net:4080/browser/
(sorry, only russian interface yet, codepage CP1251 ;)

Description of specific movie:
("Monsters Inc." extras: "Mike's New Car")
http://alexey.homeftp.net:4080/browser/info.php?file=/%CC%F3%EB%FC%F2%F4%E8%EB%FC%EC%FB/%C7%E0%F0%F3%E1%E5%E6%ED%FB%E5/%CA%EE%F0%EF%EE%F0%E0%F6%E8%DF%20%CC%EE%ED%F1%F2%F0%EE%E2/extras/Mike%27s%20NewCar.avi

-- 
Alexey Petrov