On 11/04/2019 03:42, Cld fire wrote: > On Wed, Apr 10, 2019 at 6:10 PM Mark Thompson <s...@jkqxz.net> wrote: >>> + // Make sure the input is a format we support >>> + if (fmt != AV_PIX_FMT_ARGB && >>> + fmt != AV_PIX_FMT_RGBA && >>> + fmt != AV_PIX_FMT_ABGR && >>> + fmt != AV_PIX_FMT_BGRA && >>> + fmt != AV_PIX_FMT_NONE >> >> Why NONE here? >> > > It was in the list of formats that the CPU filter said it supported and, > after briefly looking around, it appeared > that it was used as a generic special case of some kind (?). There's no > documentation on the enum variant, > though, so wasn't able to figure out its exact meaning. Judging by your > question, perhaps it is irrelevant for > HW frames?
You mean the list at <http://git.videolan.org/?p=ffmpeg.git;a=blob;f=libavfilter/vf_colorkey.c;h=3d65e59d42c6fa480e00f4b7ab079677bcac876a;hb=HEAD#l113>? AV_PIX_FMT_NONE (-1) is the invalid enum AVPixelFormat value used as the sentinel for the end of the list passed to ff_make_format_list(). - Mark _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
