[mythtv-users] Downscale HD recordings with ffmpeg
belcampo
belcampo at zonnet.nl
Mon Mar 16 14:59:54 UTC 2009
Ben Gladwell wrote:
>> My goal is "visibly the same quality" and "light on file-size".
>>
>> I use this:
>>
>> ffmpeg -i source.mpg -vcodec libx264 -b 2772k -flags +loop -coder 1
>> -refs 2 -deblockalpha 0 -deblockbeta 0 -partitions +parti4x4 -partitions
>> +partp8x8 -partitions +partb8x8 -partitions +parti8x8 -me_method umh
>> -subq 7 -me_range 24 -cmp +chroma -bf 0 -b_strategy 1 -g 250 -keyint_min
>> 25 -sc_threshold 40 -maxrate 4500k -r 25 -qmin 16 -qmax 32 -s 896x720
>> -aspect 16:9 -acodec libfaac -ab 192k -ar 48000 -ac 6 -f mpegts result.ts
>>
>> ffmpeg doesn't produce 100% mpegts files, they don't play on an
>> PopCornHour STB, I have to remux with tsMuxeR to get it 100%.
>>
>> Henk Schoneveld
>
> I'm interested in ffmpeg and I think I've got the basics down. How can
> I learn more about the options you pass to it above (like +loop -coder
> -refs etc)? They're not in the man page and there's nothing about them
> in /usr/share/doc/ffmpeg. Are these options being passed directly to
> the x264 encoder?
I got most from:
http://rob.opendot.cl/index.php/useful-stuff/x264-to-ffmpeg-option-mapping/
>
> Thanks - Ben
> _______________________________________________
> mythtv-users mailing list
> mythtv-users at mythtv.org
> http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
More information about the mythtv-users
mailing list