hwcontext: Add device derivation
authorMark Thompson <sw@jkqxz.net>
Sat, 4 Mar 2017 23:57:28 +0000 (23:57 +0000)
committerMark Thompson <sw@jkqxz.net>
Mon, 20 Mar 2017 23:15:43 +0000 (23:15 +0000)
commitb266ad56fe0e4ce5bb70118ba2e2b1dabfaf76ce
tree9ffc32c7d86e1c40ea8c4c343a8339b7d6387b48
parentb864230c49089b087eef56988a3d6a784f6f9827
hwcontext: Add device derivation

Creates a new device context from another of a different type which
refers to the same underlying hardware.
doc/APIchanges
libavutil/hwcontext.c
libavutil/hwcontext.h
libavutil/hwcontext_internal.h
libavutil/version.h