MPEG2 Fast Seeking / Scrubbing

[Dame]

Hi guys,

I'm currently in the process of building the image editing module for our commercial video transcoding system. My aim to to provide our users with the ability to scrub through a video file and set appropriate start and end points for each of their video clips.

My problem is that so far, I have found that seeking through an MPEG2 file is very slow using the IMediaSeeking or IMediaPosition DirectShow interfaces. Would using the Elecard SDK provide me with the ability to buffer part of the file for example so that I can vastly improve seeking performance?

Vegas video has the ability to seek through MPEG2 files very quickly and I know that the software uses the MainConcept MPEG2 decoder which I believe is also used for Elecard?

If the SDK is not suitable, could someone suggest how I might resolve my seeking performance problem and achieve Vegas like seeking?

Many thanks in advance for any help or advice,

Damien.

[Polyakov]

Hello Dame,

The navigation speed is mainly depends on demultiplexer.
To facilitate navigation and provide exact frame accurate positioning in the mpeg files we would recommend to index media file. Elecard SDK provides samples how to index file and use index for navigation (Advanced Player sample). The SimpleTrimmer sample illustrate how to use Elecard XMuxer engine for fast navigation through the stream and trim required chunk of the movie.

Elecard Player SDK includes demo version of all required components demultiplexer, decoder, indexator, etc.

More detailed SDK description you can see there .
To receive Elecard SDK evaluation please contact Elecard Sales Department sales@elecard.net.ru