/Am 25.08.2013///14:12/, schrieb Luca Barbato:/
On 15/08/13 13:39, Torsten Römer wrote:
>/
/>/ Am 14.08.2013 17:20, schrieb Luca Barbato:
/>>/ On 07/08/13 12:32, Torsten Römer wrote:
/>>>/ Am 07.08.2013 09:59, schrieb Luca Barbato:
/>>>>/ On 05/08/13 14:04, Torsten Römer wrote:
/>>>>>/ Am 05.08.2013 13:21, schrieb Luca Barbato:
/>>>>>>/ On 05/08/13 12:57, Luca Barbato wrote:
/>>>>>>>/ On 29/07/13 20:47, Torsten Römer wrote:
/>>>>>>>>/ I would like to use the libx264 option --blueray_compat, and since
/>>>>>>>>/ it is
/>>>>>>>>/ not available as private option in libav, I tried to use
/>>>>>>>>/ -x264-params as
/>>>>>>>>/ described in the documentation, but this option is unrecognized,
/>>>>>>>>/ even in
/>>>>>>>>/ the current 9.8 release that I just downloaded and built. What am I
/>>>>>>>>/ missing?
/>>>>>>>/ I'll add it, in the master branch you can use the x264-params to
/>>>>>>>/ pass
/>>>>>>>/ the x264 raw params (see documentation).
/>>>>>>/ To make it clearer -x264-params "bluray_compat=1" works as
/>>>>>>/ intended on
/>>>>>>/ libav git.
/>>>>>>/
/>>>>>>/ lu
/>>>>>/ Nice, cheers!
/>>>>/ Kieran pointed out bluray-compat=1 force-cfr=1 is the correct setting.
/>>>>/
/>>>>/ I added a shortcut -bluray-compat" to also set the encoder as cfr so
/>>>>/ you
/>>>>/ can produce correct bluray bitstream with ease (assuming you are
/>>>>/ feeding
/>>>>/ the encoder correctly).
/>>>>/
/>>>>/ lu
/>>>/ Very nice the shortcut, it will be very useful also for applications
/>>>/ like kdenlive (MLT?), where I think it may not be possible to pass raw
/>>>/ parameters with the -x264-params parameter.
/>>>/
/>>>/ It is just that libx264 now gives the following warning:
/>>>/
/>>>/ [libx264 @ 0x331d8e0] NAL HRD parameters require VBV parameters
/>>>/
/>>>/ I think two more libx264 parameters need to be set, --vbv-maxrate and
/>>>/ --vbv-bufsize as suggested here:
/>>>/
http://mewiki.project357.com/wiki/X264_Encoding_Suggestions#Blu-ray_Encoding
/>>>/
/>>>/
/>>/ Good catch =) I'll add at least to the documentation the information.
/>>/
/>/ If there are no shortcuts for vbv-maxrate and vbv-bufsize, it is
/>/ necessary to use -x264-params to set them, where bluray-compat could
/>/ also be specified, so isn't the shortcut -bluray-compat kind of
/>/ redundant, if -x264-params has to be used anyway?
/
I guess the best would be adding a preset for it in the end, sounds good
to you?
Sounds like a very good idea to me!
Cheers,
Torsten
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