Also fix typo found by Lou Logan:
Sacrifying -> Sacrificing
Reviewed-by: NLou Logan <lou@lrcd.com>
Signed-off-by: NAndreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>

Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

Use a macro to abstract the endianness.

In Little Endian the vec_ld/vec_st operations work as
expected only for byte-vectors.

We got defective video when use GCC 4.9.2 instead of GCC 4.9.1 to compile FFMEPG. And further found
that GCC 4.8 and 4.9 need patch to fix the lvsl/lvsr bug on POWER LE, and GCC 5.1 contains
the correct code since its release. The message on gcc-patches requesting approval for lvsl/lvsr
patch is at https://gcc.gnu.org/ml/gcc-patches/2014-10/msg00228.html.

The fixed code avoids using lvsl and will not depends on GCC version, also it uses less instructions on POWER LE.
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

avcodec/ppc/fdctdsp: POWER LE support in ff_fdct_altivec() delete macros VEC_FMERGEH() VEC_FMERGEL(), they where wrong

GCC tool had a bug of PPC intrinsic interpret, which has been fixed in GCC 4.9.1. This bug lead to
errors in two of our previous patches. We found this when we update our GCC tools to 4.9.1 and by
reading the related info on GCC website. We fix our previous error in two separate commits
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

add marcos VEC_FMERGEH() VEC_FMERGEL()
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

This broke build, note, LOCAL_ALIGNED_16() does not work either
Found-by: NJames Almer <jamrial@gmail.com>
This reverts commit 98cccdd9.

The later may yield incorrect code for on-stack variables.
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

Only ac3dec and dcadec use it.

Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

also add GET_TMP2() macro
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

And move it to where the variable is used
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

The vec_ste calls were mistakenly changed to vec_vsx_st in c5ca76ad, which
caused stack smashing.

Changing them back fixes crashes on ppc64el, when configured with
--toolchain=hardened.
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

add GET_VDST16() macro
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

avcodec/ppc/vp8dsp_altivec.c: POWER LE support put_vp8_epel_h_altivec_core() put_vp8_epel_v_altivec_core() put_vp8_pixels16_altivec() add marcos GET_PIXHL() GET_OUTER() LOAD_HL()
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

adds macro GET_T()
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

add put_unligned_store() and avg_unligned_store() macros
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

avcodec/ppc/h264qpel_template: POWER LE support for PREFIX_h264_qpel16_h_lowpass_altivec() PREFIX_h264_qpel16_v_lowpass_altivec() PREFIX_h264_qpel16_hv_lowpass_altivec()

add load_alignment() macro
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

avcodec/ppc/h264chroma_template: POWER LE support for PREFIX_h264_chroma_mc8_altivec() PREFIX_no_rnd_vc1_chroma_mc8_altivec() CHROMA_MC8_ALTIVEC_CORE_SIMPLE() CHROMA_MC8_ALTIVEC_CORE()

add marcos GET_VSRC1() GET_VSRC()
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

avcodec/ppc/h264dsp: POWER LE support for h264_idct8_add_altivec() h264_idct_dc_add_internal() h264_loop_filter_luma_altivec() write16x4() VEC_1D_DCT() weight_h264_W_altivec() biweight_h264_W_altivec() VEC_LOAD_U8_ADD_S16_STORE_U8() ALTIVEC_STORE_SUM_CLIP()

add marcos GET_2PERM() dstv_load() vdst_load() dest_unligned_store()
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

CC: libav-stable@libav.org
Bug-Id: CID 700556 / CID 700557 / CID 700558

libavcodec/ppc/me_cmp.c : support little endian in sse8_altivec(), hadamard8_diff8x8_altivec() and hadamard8_diff16x8_altivec()
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

add marcos GET_PERM() LOAD_PIX() for POWER LE
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

libavcodec/ppc/hpeldsp_altivec.c : fix ff_put_pixels16_altivec() put_no_rnd_pixels16_xy2_altivec() put_no_rnd_pixels8_xy2_altivec() avg_pixels8_altivec() avg_pixels8_xy2_altivec() put_pixels16_xy2_altivec() put_pixels8_xy2_altivec() ff_avg_pixels16_altivec() for POWER LE
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

libavcodec/ppc/me_cmp.c : fix sad16_altivec() sse16_altivec() sad16_xy2_altivec() sad16_x2_altivec() sad16_y2_altivec() sad8_altivec() for POWER LE
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

Only "./configure --enable-gpl" on x86 was tested.
Signed-off-by: NReimar Döffinger <Reimar.Doeffinger@gmx.de>

Found-by: ubitux
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>