[FFmpeg-user] creating h264 .mp4 MBAFF tff/bff h264 with AAC audio

[Albert Scholtalbers]

Thx for reply.
I found a tool calles Winff which has a lot of default settings, so it its
easier to understand the construction of parameters as the current manual
has a steep threshold and the lack of website like 'FFmpeg for dummies'.

I found some code and it seems to work
!!!  -flags +ildct+ilme -x264opts tff=1  !!!  in
f:\ffmpeg.exe -i "f:\sample.mpg" -vcodec h264 -b 1500k  -flags +ildct+ilme
-x264opts tff=1 -strict -2 -acodec aac -ab 128k f:\output.mp4

I'm a coder myself, but would option like:
-interlaced=yes -fieldorder=tff

be a littelbit more self explaining than:  '-flags +ildct+ilme -x264opts
tff=1'

Maybe a little of topic, Why don't FFmpeg uses the output of something like
mediainfo to define the input, which you can upload to a website and via
that same website define the ouput via radiobuttons, selectionboxes for:
container, codec, framerate, scaling, resolution, birate/quality etc and it
creates the command line for you. It would save a lot of questions and
lowers the treshold for new users. Once this wiki is created it could serve
for many software products like HandBrake, VLC, Mencoder etc, etc. Just a
thought.


2012/12/17 Carl Eugen Hoyos <cehoyos at ag.or.at>

> Albert Scholtalbers <compuvision.sr <at> gmail.com> writes:
>
> > I'm quite new to FFmpeg and want to create Interlaced h264 files with
> > AAC/MP2 sound from Interlaced MPEG2/DV/AVI sources
> > The basics is quite simple, and a progressive output is created quite
> > quickly. But I can't manage to get Interlaced h264 output.
> > I see a lot of options in manuals, but non of them seem to work, or very
> > tricky to put in the CLI
> > I'm using Windows 7
> > f:\ffmpeg.exe -i f:\sample.mpg -vcodec h264 -setfield='bff' -b 1500k
> > -strict -2 -acodec aac -ab 128k f:\output.mp4
> > or
> > f:\ffmpeg.exe -i f:\sample.mpg -vcodec h264 --interlaced  -b 1500k
> -strict
> > -2 -acodec aac -ab 128k f:\output.mp4 don't seem to work.
> >
> > What am I doing wrong?
>
> Apart from not providing complete, uncut console output
> (it is needed for every question on this mailing list),
> please read the fine x264 manual and provide the necessary
> options to libx264 with -x264opts.
>
> This way of handling x264 options allows FFmpeg to support
> latest changes / new options in x264 without any code change.
>
> Carl Eugen
>