[FFmpeg-devel] [PATCH] add uuid box to MP4 to make h.264 play on iPod
Sun Mar 2 04:26:48 CET 2008
On Mar 1, 2008, at 6:28 AM, Mark Himsley wrote:
> Augie Fackler wrote:
>> I've been converting things for my iPhone using ffmpeg and have
>> been making mp4's without this UUID and iTunes has transferred
>> them fine and the phone's media player has played them all without
>> a hitch.
> What size and codec of video have you been putting into the .MP4?
> If its MPEG4 part 2 (aka DIVX) then that does not need the UUID.
> If its H.264 then it *might be* that the video needs to be over a set
> size before it requires the UUID.
> If you could post your working command line...
I actually have a script that does the conversion - the sizes have
been variable, but my most recent batch were 480x268 in size. The
command line used would have been something along the lines of this:
ffmpeg -i $input -y -threads 4 -s 480x268 -vcodec libx264 -g 300 -
aspect 480:268 -qmin 27 -b 614400 -level 13 -loop 1 -sc_threshold 40 -
partp4x4 1 -rc_eq blurCplx^(1-qComp) -refs 3 -qmax 51 -maxrate 716800 -
acodec libfaac -ar 44100 -ac 2 -ab 131072 $output
(quality here not being a goal at this point, getting the process
ironed out has been. That said, the files appear to look fine on an
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