Hi, 2014-06-11 17:11 GMT+02:00 Nikita Orlov <nikitos1...@yandex.ru>: > Hello! > > x264 has next feature: > > void (*quant_offsets_free)( void* ); > > /* In: optional array of flags for each macroblock. > * Allows specifying additional information for the encoder such as > which macroblocks > * remain unchanged. Usable flags are listed below. > * x264_param_t.analyse.b_mb_info must be set to use this, since x264 > needs to track > * extra data internally to make full use of this information. > > So, I can send to encoder some info that some macroblocks are not changed, > and encoder will not spend time for them. > > Question: Are there any features in livba like this?
The generic per-macroblock APIs were never implemented, so I will probably remove those anyway. My original intention there was to make it useful to x264. Though, this looked illusionary to have a generic approach to that. Nowadays, there is a work-in-progress Intel-specific API for accelerating some parts of the encoding process. This is going to be the long-term supported approach. FEI: Flexible Encoder Interface, available in the "staging" branch of libva. However, as far as I know, there is no immediate support for the feature you describe. Still, I believe there is room to extend per-MB info there. Is this something you are interested to work on? Regards, -- Gwenole Beauchesne Intel Corporation SAS / 2 rue de Paris, 92196 Meudon Cedex, France Registration Number (RCS): Nanterre B 302 456 199 _______________________________________________ Libva mailing list Libva@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/libva
