[FFmpeg-user] mpeg4 better than libx264?

[Reindl Harald]

Am 13.01.2012 09:07, schrieb dE .:
>> Yes, you are missing something.  The fact that you have asked for a bitrate of 20 megabits for a tiny, tiny video
>> (320x148).  The encoders tried their damn hardest to achieve it by using the lowest quantisers they could but
>> ultimately failed.
>>
>> As for the results, you will see that x264 was allowed to output more bits.  A quick bit of math shows that x264
>> would have a similar file size if it had equivalently limited as mpeg4.
>
> I did that to ensure no quality loss, but when I capped the bitrate to 200k, I got very less quality loss as
> compared to the 20000k one (it's actual bitrate was 600k)

so set it to a human bitrate NOT lower than the input-file and
not to idiotic bitrates with some MEGABIT before considering
what 20 MBit PER SECOND does mean



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