specify accurate align information for ST32,
remove redundant init
prevent from return if ref_idx is error
Remove .syntax unified from the aarch64 common header

This directive isn't available in aarch64 code, only in arm code.
Add \() to macro arguments to separate the argument from the following .8h or similar
Add correct arguments to the gnu version of UNPACK_FILTER_SINGLE_TAG_16BITS
Use a plain "ret" instead of "ret lr"

This fixes an issue with assembling with gnu binutils.
Use the correct ext syntax in the gnu version of macros
Add macros for the non-standard mov.16b/mov.8b/ext.16b/ext.8b

This fixes building with gnu binutils, which don't support this
nonstandard form of the instructions.

Once Apple's tools support the proper standard form of the
instructions, the code should be updated to use that everywhere
instead, and these macros should be removed.
add slice/frame copy UT for EC
enable the case for IDR loss
Squashed commit of the following:

commit f73d6cf0fcae5f401fc2817ab736af996113ca09
Author: lyao2 <lyao2@LYAO2-WS01.cisco.com>
Date:   Thu Apr 24 15:02:21 2014 +0800

    remove comments

commit 75416c2cf6c1ebb7aabf9e8c52d8c7163a8009b7
Author: lyao2 <lyao2@LYAO2-WS01.cisco.com>
Date:   Thu Apr 24 14:52:09 2014 +0800

    for test

commit 7dfb65ce514edcff892bfb3919921cadcce1d055
Author: lyao2 <lyao2@LYAO2-WS01.cisco.com>
Date:   Thu Apr 24 14:12:31 2014 +0800

    for test

commit eff771645e8c349dc4e454ab1751530b3cef18ed
Author: lyao2 <lyao2@LYAO2-WS01.cisco.com>
Date:   Thu Apr 24 10:51:34 2014 +0800

    for test

commit 9c42b9a7a04068e70be94529941f549b58e63780
Author: lyao2 <lyao2@LYAO2-WS01.cisco.com>
Date:   Wed Apr 23 17:46:59 2014 +0800

    update cpu_flag

commit cce3fccc0a4249b82ab2e0e92fe53579ef942799
Author: lyao2 <lyao2@LYAO2-WS01.cisco.com>
Date:   Wed Apr 23 17:26:56 2014 +0800

    for test

commit 3d292995b3c4437a2674a687cc4e8da1b5fb83f5
Author: lyao2 <lyao2@LYAO2-WS01.cisco.com>
Date:   Wed Apr 23 16:45:57 2014 +0800

    remove space

commit c608c2ba7cf010f1dcf8c0344f68536c48e181cb
Author: lyao2 <lyao2@LYAO2-WS01.cisco.com>
Date:   Wed Apr 23 16:42:43 2014 +0800

    remove tabs

commit 3b769342a06e25ad23a2c86f23a94d0d7ca1a4c8
Author: lyao2 <lyao2@LYAO2-WS01.cisco.com>
Date:   Wed Apr 23 16:33:55 2014 +0800

    refine UT case

commit 89b869f0c8f8c9bbd61e9de32caa77877aeae064
Author: lyao2 <lyao2@LYAO2-WS01.cisco.com>
Date:   Tue Apr 22 13:40:50 2014 +0800

    Squashed commit of the following:

    commit abe55494134ef8342ffe9566df4e1b3265fe21b6
    Author: lyao2 <lyao2@LYAO2-WS01.cisco.com>
    Date:   Tue Apr 22 10:50:07 2014 +0800

        set MV range

    commit 8c7f70c351e50d945c29118bed8b3781c22b7dbc
    Author: lyao2 <lyao2@LYAO2-WS01.cisco.com>
    Date:   Mon Apr 21 16:53:10 2014 +0800

        refinement

    commit bf35f19a7dc88743aacf8e89e681e0ef3302d40a
    Author: lyao2 <lyao2@LYAO2-WS01.cisco.com>
    Date:   Fri Apr 18 17:24:31 2014 +0800

        correct tabs

    commit 130b7f895d7020bfc571d910966891da93150242
    Author: lyao2 <lyao2@LYAO2-WS01.cisco.com>
    Date:   Fri Apr 18 17:17:06 2014 +0800

        correct format

    commit 0429703b0844363559dd2b3d44e45034232a9d8f
    Author: lyao2 <lyao2@LYAO2-WS01.cisco.com>
    Date:   Fri Apr 18 15:12:44 2014 +0800

        add scroll UT
Merge pull request #743 from huili2/ec_refidx_return

prevent from return if ref_idx is error
Merge pull request #744 from huili2/ec_IdrLoss

enable the case for IDR loss
Merge pull request #732 from licaiguo/forJS

specify accurate align information for ST32
Merge pull request #742 from huili2/ec_ut_copy

add slice/frame copy UT for EC
remove comments
fix typo of IDR loss
Merge pull request #746 from huili2/IDR_bugfix

fix typo of IDR loss
adjust trace
fix resolution setting issue