MediaCoder

It would be great to have "intra_matrix & inter_matrix" parameters support in "Extra Options -> Advanced" table...

Now i'm trying to build FFmpeg presets files for 2-pass "alternative matrix" encodings... stay tuned.

After the discovering of "-intra_matrix / -inter_matrix" parameters for FFmpeg, I started to collect some interesting matrices: KVCD intra_matrix: 8,9,12,22,26,27,29,34,9,10,14,26,27,29,34,37,12,14,18,27,29,34,37,38,22,26,27,31,36,37,38,40,26,27,29,36,39,38,40,48,27,29,34,37,38,40,48,58,29,34,37,38,...

Here we go !!! Quality is awesome. It can reach quant 2 for 400kb/s on low motion. ffmpeg -hq -i d:\sample.vob -target svcd -bufsize 224 -b 600 -mbd 2 -g 240 -bt 1024 -trell -bf 2 -alt -y -intra_matrix "8,9,12,22,26,27,29,34,9,10,14,26,27,29,34,37,12,14,18,27,29,34,37,38,22,26,27,31,36,37,38,40,26 ,...

...and finally, here's the discussion for the solution:

http://itdp.fh-biergarten.de/~itdp/html ... 00024.html

Hey ! I just found a possible solution in Mencoder's manual ! 11.3.5. Custom inter/intra matrices With this feature of libavcodec you are able to set custom inter (I-frames/keyframes) and intra (P-frames/predicted frames) matrices. It is supported by many of the codecs: mpeg1video and mpeg2video are...

Well, then, buzzqw (the HDConvertToX, MicroX264 and AutoMen author) suggested me to use these FFmpeg parameters (even if he don't know HOW):

-intra_matrix matrix specify intra matrix coeffs
-inter_matrix matrix specify inter matrix coeffs

Hope that helps !

Someone already knows them, but for others: KVCD is a modification to the standard MPEG-1 and MPEG-2 GOP structure and Quantization Matrix. It enables you to create over 120 minutes of near DVD quality video, depending on your material, on a single 80 minute CD-R/CD-RW. We have published these speci...

OK, I successfully encoded a movie into an MPEG-1 files, here's the shot:



As you can see ffmpeg is now 64bit... but what's the other 3ad of mencoder ???

Does enyone knows where to get a 64bit mencoder build ?

OK i found the problem, finally.

MediaCoder stops after 1st pass only if the source is a DVD-rip (IFO). No problems with other kind of input files.