[Ffmpeg-devel] Differences between mencoder and ffmpeg when encoding using x264 (original) (raw)

Erik Slagter erik
Sun Feb 19 17:05:48 CET 2006

On Sun, 2006-02-19 at 16:50 +0100, Michael Niedermayer wrote:

> I've got this weird problem, it's probably something I overlooked, so > I'd appreciate some help. > > This command line: > > ffmpeg -bf 16 -deinterlace -t 24 -nr 800 -y -coder 1 -threads 2 -i 1−qmin1−qmax51−lmin1−lmax51−aspect4:3−minrate0−maxrate9000−b3000−bufsize8000−vcodech264−fh264"1 -qmin 1 -qmax 51 -lmin 1 -lmax 51 -aspect 4:3 -minrate 0 -maxrate 9000 -b 3000 -bufsize 8000 -vcodec h264 -f h264 "1−qmin1−qmax51−lmin1−lmax51−aspect4:3−minrate0−maxrate9000−b3000−bufsize8000−vcodech264−fh264"video" -acodec aac -ab 128 "$audio" > > and this command line: > > mencoder -frames 610 -nosound -ovc x264 -of rawvideo -vf "lavcdeint" -mc 0 -x264encopts "bitrate=3000:nr=800:bframes=16:cabac:vbvmaxrate=9000:vbvbufsize=8000:threads=2" -o videovideo videovob > > Give very different results, although as far as I can see the relevant > options are the same. The mencoder command line gives much better > quality (visually) using the same bit rate, almost no blockyness, while > the ffmpeg output is full of blocks.

well, remove one option at a time until no removial is possible anymore witout reducing the diffence in quality

That would be logical yeah. I figured it had to be something really stupid, but apparently not that stupid ;-) -------------- next part -------------- A non-text attachment was scrubbed... Name: smime.p7s Type: application/x-pkcs7-signature Size: 2771 bytes Desc: not available URL: <http://lists.mplayerhq.hu/pipermail/ffmpeg-devel/attachments/20060219/75595bbd/attachment.bin>

More information about the ffmpeg-devel mailing list