2017-09-28 23:24 GMT+02:00 Carl Eugen Hoyos <ceffm...@gmail.com>: > 2017-09-28 21:50 GMT+02:00 Martin Vignali <martin.vign...@gmail.com>: > > > After comments about the previous patchs > > Please explain how this encoder and decoder can be used > from the FFmpeg cli: What kind of input could be used, what > could be done with the output? > > I believe you force every user to add an additional filter > to do anything useful, please convince me that this is wrong. > > Hello,
I didn't design the HAP codec, so my answer mostly follow the comments of Tom Butterworth. (in the previous discussion of decoding/encoding) Like it seems that the Hap Alpha Only is only design to be use for alpha channel encoding (not to encode gray), it use in this new patch : RGBA input/output (using only the alpha channel) In a more general way, HAP is only useful when use with GPU decoding/compositing (specially in very big resolution, with lot of video layer) (not the case in the ffmpeg). IMO, the ffmpeg support is mostly interesting to convert hap file to something else or to check what we can encode with the ffmpeg hap encoder. Martin _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
