I have re-compiled the default MPlayer that comes with Slackware. I've added vaapi support for new intel chips. If you want to try it out. Feel free to use the package with the 2 additional dependencies [Required].
The MPlayer package will replace the one that comes by default on a full Slackware install.
It does not have the gui enabled and does not have support for vdpau.
After you are done. Just choose "vaapi" from SMPlayer video driver option.
Just for reference: My laptop Specs:
Intel Core i5 3210M (Ivy Bridge)
Intel HD4000 (Inbuilt)
SNA Accel enabled in /etc/X11/xorg.conf.d/20-intel.conf
Kernel: Linux SamBox 3.10.0 #1 SMP PREEMPT Mon Jul 1 18:06:03 IST 2013 x86_64 Intel(R) Core(TM) i5-3210M CPU @ 2.50GHz GenuineIntel GNU/Linux
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