[FFmpeg-user] having trouble encoding mov to mp4 H.264 level 3.0 baseline for HTML5 iOS

[James Darnley]

On 2013-02-19 11:01, Antony Peiris wrote:
> ffmpeg -y -i in.mov -filter:v scale=640:-1  \
> 
>        -c:v libx264-preset:v slow-profile:v baseline \
> 
>        -x264opts level=3.0:vbv -maxrate=750:vbv -bufsize=3750:ref=1  \
> 
>        -b:v 500k-r:v25/1  -force_fps -movflags faststart \
> 
>        -c:a libfaac-b:a 80k-pass x out.mp4
> 
> 
> Error: Unrecognized option 'maxrate=750:vbv'

You have an absolute mess of a command line there.  Spaces where there
shouldn't be spaces and no spaces where there should be one.

Try this:
> ffmpeg -y -i in.mov -filter:v scale=640:-1 -c:v libx264 -preset:v slow -profile:v baseline -x264opts "level=3.0:vbv-maxrate=750:vbv-bufsize=3750:ref=1" -b:v 500k -r:v 25/1 -force_fps -movflags faststart -c:a libfaac -b:a 80k -pass X out.mp4

(Ugh.  The ffmpeg syntax is horrible like this.)

> ffmpeg -y -i in.mov -vf scale=640:-1 -vcodec libx264 -vpreset slow -vprofile baseline -x264opts "level=3.0:vbv-maxrate=750:vbv-bufsize=3750:ref=1" -vb 500k -r 25/1 -force_fps -movflags faststart -acodec libfaac -ab 80k -pass X out.mp4

(A bit better)

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