Multibit x265 is now the default build for all appimages which only affects encode for x265 so that now the 10-bit and 12-bit x265 render formats will work. The 8-bit render format (h265.mp4) and other h265 formats that exist should continue to work as before.

If doing your own build and for some reason you prefer not to build with 10 and 12 bit x265, follow these steps:

  1. Move to the thirdparty directory: cd /path_to/cinelerra-5.1/thirdparty .
  2. Edit the file “Makefile” by changing lines to switch the # comment character like this:
    #x265.cfg_vars?=chmod +x ./configure; chmod +x ./multilib.sh;
    x265.cfg_vars?=$(call cmake_config,source)
    x265.cfg_params?= -DENABLE_SHARED=no -DENABLE_CLI=no
  3. Then delete or rename the 3 patch files in thirdparty/src with names of x265xxxxx.patchx.