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? lu _______________________________________________ libav-tools mailing list [email protected] https://lists.libav.org/mailman/listinfo/libav-tools
