Bandwidth Required for Frame Serving == ?

[Tuning]

It is something general,but related to Avisynth.What Memory and Network bandwidth is required for frame serving MPEG2 video @DVD resolution(Cropped).I mean,will resolution makes difference in both bandwidths?
Currently let us consider the frame serving is done at average 24fps.

Thanks.

[Richard Berg]

DVD-resolution MPEG2 is typically between 3-8Mbps. On a switched network the decoding will probably be the limiting factor.

[Tuning]

DVD-resolution MPEG2 is typically between 3-8Mbps
And VCD MPEG-1 requires approximately 1.5MB/second.And AVI varies between 680-2800kbps.

My question is about frame serving the MPEG-2 file using Avisynth.The AVS created is decoding MPEG-2 to raw stream and what bandwidth is required for this raw,cropped stream(DVD resolution and only black bar is cropped).It is obvious that it will be greater than 3-8Mbps @24fps,but how much?(approximate value=?).



Thanks Richard Berg,but I need more detailed quote.

-Tuning

[stickboy]

But the AviSynth script is parsed by the computer that opens the script. The MPEG2 file is decoded locally, not remotely. Therefore the file's original bitrate is what really matters.

[Tuning]

Thanks for the point stickboy.So it is possible to frame serve between two computers with a 10Mbps LAN.Correct me if this is wrong.Any other interesting procedures for frame serving over LAN....??

-Tuning

[stickboy]

Try looking into VideoLAN (http://www.videolan.org/).

BTW, if you want to determine the bitrate for decompressed video, it's pretty straightforward:

number-of-pixels-per-frame * bytes-per-pixel * frames-per-second + audio-sampling-rate * bytes-per-sample * number-of-audio-channels

Therefore, for 720x480 video at 24 fps with 48 KHz stereo audio, that would be:

(720 * 480 * bytes-per-pixel * 24 + 48000 * 2 * 2) bytes/second

bytes-per-pixel would be 3 if you decode to RGB, 2 for YUY2, and I think 1.5 for YV12.

[Tuning]

Thanks again

BTW,i think this equation can also be used for XviD/DivX videos for streaming over LAN.

Bye

-Tuning