[MEncoder-users] MJPEG and LJPEG video bitrate
Bill Crockett
wsc4 at optusnet.com.au
Thu May 16 12:38:58 CEST 2013
On 16/05/2013 1:03 AM, Carl Eugen Hoyos wrote:
> Bill Crockett <wsc4 <at> optusnet.com.au> writes:
>
>> On 15/05/2013 9:21 PM, Carl Eugen Hoyos wrote:
>>> Bill Crockett <wsc4 <at> optusnet.com.au> writes:
>>>
>>>> -ovc lavc -lavcopts vcodec=ljpeg:mbd=1:vbitrate=1800
>>>
>>> It makes no sense to set a bitrate for a lossless encoder.
>>>
>> What about the MJPEG? Can I set that?
>
> It works to some degree with ffmpeg as long
> as you select single-threaded encoding.
>
> Carl Eugen
>
>
Thank you. I just did a bare-bones test like this and it worked:
ffmpeg -i input.avi -vcodec mjpeg -b 16000k -acodec copy ffmpeg_test.avi
However, with MEncoder and looking at the the bottom of the Man page, it
gives an example:
The same, but with MJPEG compression:
mencoder dvd://2 -o title2.avi -oac copy -ovc lavc -lavcopts
vcodec=mjpeg:mbd=1:vbitrate=1800
Experimenting with the vbitrate of 1800 up to 24000000 made no
difference and defaulted to some set rate.
Before MEncoder became unmaintained, did this ever work?
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