[FFmpeg-user] [AVCHD] Join + resize?

[Gilles]

On Wed, 31 Oct 2012 00:39:52 +0000 (UTC), Carl Eugen Hoyos
<cehoyos at ag.or.at> wrote:
>$ copy /b input1 + input2 + input3 output
>or
>$ copy /b input* output

Thanks, that did it.

>> Is there a codec that would give a less compressed output than mpeg4?
>
>less compressed?

Yes. With this...

ffmpeg -i myfile.mts -s 640x480 -codec:v mpeg4 -profile:v 3 -codec:a
copy myfile.mp4

... the video shows heavy compression ("patches" in dark aeras).

>Without you specifying a bitrate or a constant quantiser, 
>this is not going to produce something useful.

Problem is, I know next to nothing about video :-/

All I know is that the original files combined are about 2.5GB for
40mn, and I'd like to end with something closer to movies off the Net
(DivX, etc.), ie. about 350MB (1h30 movie = 700MB).

Ffmpeg supports so many codecs that I don't know which to try.