[Ffmpeg-devel] The Ffmpeg on Mac OS X Howto

Víctor Paesa wzrlpy
Wed Oct 4 22:43:03 CEST 2006


>
> On 3 Oct 2006, at 08:04, V?ctor Paesa wrote:
>
> [...]
>
>>>
>>> In any case, thanks for looking at my article, which is here:
>>>
>>> http://stephenjungels.com/jungels.net/articles/ffmpeg-howto.html
>>>
>>
>> In your article I found:
>>       "-b 600" selects a video bitrate of 600 kilobits per second.
>> This is a
>> compromise between quality and bandwidth;
>>       "-ab 96" selects an audio bit rate of 96 kilobits per second;
>> you
>> could go a little lower for voice-only audio.
>>
>> That's correct for old FFmpeg versions, but I'd suggest to mention
>> that
>> current SVN versions of ffmpeg have changed the scale and now expect
>> bits per second instead of kilobits per second.
>>
>> The line in your example would become:
>> ffmpeg -i video.mov -b 600k -r 24 -ar 22050 -ab 96k video.flv
>>
>
> That's not correct. As far as I can see with the latest svn, -ab is
> still using
> kilobits per second. Or am I missing something?
>

Ups, well spotted, -ab is not yet an AVOption, and still expects kbits/s




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