H.264 Encoding

[BTJustice]

I am trying to encode recorded shows into H.264 files. In my config.xml file, I am trying this code...

Code:

<Conversion name="H.264" cmd="-y -i {SOURCE_FILE} -ab 128k -ac 2 -acodec mp3 -ar 44100 -b 1000k -bf 3 -b_strategy 1 -cmp +chroma -coder 1 -crf 22 -deinterlace -f mp4 -g 250 -i_qfactor 0.71 -keyint_min 25 -me full -me_range 16 -partitions +parti4x4+partp8x8+partb8x8 -qmin 10 -qmax 51 -qdiff 4 -refs 5 -sc_threshold 40 -subq 5 -threads 2 -vcodec h264 -vtag H264 {DEST_FILE}" targetExtension=".mp4" />

Are there any errors in it or ways to improve it more?

My goals are to have a small file size with great video quality. XviD and DivX leave blocks in videos and WMV has color shifts in it especially on skin tones.

This looks very promising...

http://flowplayer.org/forum/7/12671

[BTJustice]

Well it appears the above code doesn't work... SHIT!

[BTJustice]

Does anyone here encode using H.264 and would share how they have config.xml set up to do it?

[Reddwarf]

I don't think it's a good idea to do this via config.xml, why don't you do it in the post-processing (like most others do)? Zehd's qued postprocessing works excellent, and you can set it to run at an idle time of night...

[BTJustice]

It seems like the encoded H.264 files are not much smaller than the original .mpg file

[Reddwarf]

That's strange, a 45 min recording on my pc is about 1.8 gig in .mpg format, and converted to h264 .avi it takes about 350-440k. Did you try the command line I posted to you?

[BTJustice]

Repost it here please.

[Reddwarf]

ffmpeg -i "%1" -threads 2 -s 768x576 -pass 2 -vcodec h264 -b 1200k -flags +loop -cmp +chroma -partitions +parti8x8+parti4x4+partp8x8+partp4x4+partb8x8 -me umh -subq 7 -trellis 1 -refs 6 -bf 16 -directpred 3 -b_strategy 1 -bidir_refine 1 -coder 1 -me_range 16 -g 250 -keyint_min 25 -sc_threshold 40 -i_qfactor 0.71 -bt 142282 -rc_eq "blurCplx^(1-qComp)" -qcomp 0.6 -qmin 10 -qmax 51 -qdiff 4 -acodec mp3 -ar 44100 -ab 128k -y %2%

[BTJustice]

Thanks. I will try it some time.

[elmede]

Hi there!!

Must had missed your post..

Anyway, I've posted my configuration of kinda working H.264 transcoding.

Find it here:

http://forums.nextpvr.com/showthread.php?t=41239

El Mede