Hello, and thanks again.

I just want to get things in order:
You can also try viodeolan
http://www.videolan.org/
After viewing their site, I'm under the impression that it's a (cool) streaming tool, with no encoding capabilities of its own. It uses transcode to do the job for it (or am I wrong?).

Anyhow, it's interesting in itself.
Second , I do not know what your final goal is , but if you want
to save the file in a compressed format,
Exactly. A small compressed file to put on a website.

As for your example, let me make a few guesses. Tell me if I got it wrong:
and I worked with CIF (352x288) window size.

Bytes

the size of the  yuv420p :             15206400 Bytes

the size of the encoded h263 file:     384647 Bytes (which is about 0.025 of the yuv file)
the size of the decoded h263 file: 15054336 Bytes
 
My guess: 75 frames of 352x288 pixels, with each YUV pixel occupying 2 bytes on the average (due to U & V downsampling), so we have:

75 * 352 * 288 * 2 = 15206400 bytes. You ran 25 frames per second (grabbed from PAL, I suppose) so that's 3 seconds of video.

Bitrate: 384647 * 8 = 3077176 bits, divided by 3 seconds, we have grossly 1 Mbit/sec. Which is more or less like VCD. No wonder you got great results.


But I want the low-quality thingy!

Thanks anyhow,
    Eli


-- 
Web: http://www.billauer.co.il




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