Merge commit 'a1bcc76e6036e78f25cbb7323c145056cfca9d93'

* commit 'a1bcc76e6036e78f25cbb7323c145056cfca9d93': (21 commits)
  cmdutils: fix a memleak when specifying an option twice.
  x86: mpegvideo: more sensible names for optimization file and init function
  x86: mpegvideoenc: Split optimizations off into a separate file
  dnxhdenc: x86: more sensible names for optimization file and init function
  svq1/svq3: Move common code out of SVQ1 decoder-specific file
  dirac: add Comments and references to the standard
  lavr: x86: optimized 6-channel flt to fltp conversion
  lavr: x86: optimized 2-channel flt to fltp conversion
  lavr: x86: optimized 6-channel flt to s16p conversion
  lavr: x86: optimized 2-channel flt to s16p conversion
  lavr: x86: optimized 6-channel s16 to fltp conversion
  lavr: x86: optimized 2-channel s16 to fltp conversion
  lavr: x86: optimized 6-channel s16 to s16p conversion
  lavr: x86: optimized 2-channel s16 to s16p conversion
  lavr: x86: optimized 2-channel fltp to flt conversion
  lavr: x86: optimized 6-channel fltp to s16 conversion
  lavr: x86: optimized 2-channel fltp to s16 conversion
  lavr: x86: optimized 6-channel s16p to flt conversion
  lavr: x86: optimized 2-channel s16p to flt conversion
  lavr: x86: optimized 6-channel s16p to s16 conversion
  ...

Conflicts:
	libavcodec/dirac.c
	libavcodec/mpegvideo.h
	libavcodec/x86/Makefile

Merged-by: Michael Niedermayer <michaelni@gmx.at>

3 files changed, 1137 insertions, 0 deletions

diff --git a/libavresample/x86/audio_convert.asm b/libavresample/x86/audio_convert.asm
index 244c4d1b08..3db64d2f9b 100644
--- a/libavresample/x86/audio_convert.asm
+++ b/libavresample/x86/audio_convert.asm
@@ -30,6 +30,11 @@ pf_s32_inv_scale: times 8 dd 0x30000000
 pf_s32_scale:     times 8 dd 0x4f000000
 pf_s16_inv_scale: times 4 dd 0x38000000
 pf_s16_scale:     times 4 dd 0x47000000
+pb_shuf_unpack_even:      db -1, -1,  0,  1, -1, -1,  2,  3, -1, -1,  8,  9, -1, -1, 10, 11
+pb_shuf_unpack_odd:       db -1, -1,  4,  5, -1, -1,  6,  7, -1, -1, 12, 13, -1, -1, 14, 15
+pb_interleave_words: SHUFFLE_MASK_W  0,  4,  1,  5,  2,  6,  3,  7
+pb_deinterleave_words: SHUFFLE_MASK_W  0,  2,  4,  6,  1,  3,  5,  7
+pw_zero_even:     times 4 dw 0x0000, 0xffff
 
 SECTION_TEXT
 
@@ -223,6 +228,512 @@ INIT_YMM avx
 CONV_FLT_TO_S32
 %endif
 
+;------------------------------------------------------------------------------
+; void ff_conv_s16p_to_s16_2ch(int16_t *dst, int16_t *const *src, int len,
+;                              int channels);
+;------------------------------------------------------------------------------
+
+%macro CONV_S16P_TO_S16_2CH 0
+cglobal conv_s16p_to_s16_2ch, 3,4,5, dst, src0, len, src1
+    mov       src1q, [src0q+gprsize]
+    mov       src0q, [src0q        ]
+    lea        lenq, [2*lend]
+    add       src0q, lenq
+    add       src1q, lenq
+    lea        dstq, [dstq+2*lenq]
+    neg        lenq
+.loop
+    mova         m0, [src0q+lenq       ]
+    mova         m1, [src1q+lenq       ]
+    mova         m2, [src0q+lenq+mmsize]
+    mova         m3, [src1q+lenq+mmsize]
+    SBUTTERFLY2  wd, 0, 1, 4
+    SBUTTERFLY2  wd, 2, 3, 4
+    mova  [dstq+2*lenq+0*mmsize], m0
+    mova  [dstq+2*lenq+1*mmsize], m1
+    mova  [dstq+2*lenq+2*mmsize], m2
+    mova  [dstq+2*lenq+3*mmsize], m3
+    add        lenq, 2*mmsize
+    jl .loop
+    REP_RET
+%endmacro
+
+INIT_XMM sse2
+CONV_S16P_TO_S16_2CH
+%if HAVE_AVX
+INIT_XMM avx
+CONV_S16P_TO_S16_2CH
+%endif
+
+;------------------------------------------------------------------------------
+; void ff_conv_s16p_to_s16_6ch(int16_t *dst, int16_t *const *src, int len,
+;                              int channels);
+;------------------------------------------------------------------------------
+
+;------------------------------------------------------------------------------
+; NOTE: In the 6-channel functions, len could be used as an index on x86-64
+;       instead of just a counter, which would avoid incrementing the
+;       pointers, but the extra complexity and amount of code is not worth
+;       the small gain. On x86-32 there are not enough registers to use len
+;       as an index without keeping two of the pointers on the stack and
+;       loading them in each iteration.
+;------------------------------------------------------------------------------
+
+%macro CONV_S16P_TO_S16_6CH 0
+%if ARCH_X86_64
+cglobal conv_s16p_to_s16_6ch, 3,8,7, dst, src0, len, src1, src2, src3, src4, src5
+%else
+cglobal conv_s16p_to_s16_6ch, 2,7,7, dst, src0, src1, src2, src3, src4, src5
+%define lend dword r2m
+%endif
+    mov      src1q, [src0q+1*gprsize]
+    mov      src2q, [src0q+2*gprsize]
+    mov      src3q, [src0q+3*gprsize]
+    mov      src4q, [src0q+4*gprsize]
+    mov      src5q, [src0q+5*gprsize]
+    mov      src0q, [src0q]
+    sub      src1q, src0q
+    sub      src2q, src0q
+    sub      src3q, src0q
+    sub      src4q, src0q
+    sub      src5q, src0q
+.loop:
+%if cpuflag(sse2slow)
+    movq        m0, [src0q      ]   ; m0 =  0,  6, 12, 18,  x,  x,  x,  x
+    movq        m1, [src0q+src1q]   ; m1 =  1,  7, 13, 19,  x,  x,  x,  x
+    movq        m2, [src0q+src2q]   ; m2 =  2,  8, 14, 20,  x,  x,  x,  x
+    movq        m3, [src0q+src3q]   ; m3 =  3,  9, 15, 21,  x,  x,  x,  x
+    movq        m4, [src0q+src4q]   ; m4 =  4, 10, 16, 22,  x,  x,  x,  x
+    movq        m5, [src0q+src5q]   ; m5 =  5, 11, 17, 23,  x,  x,  x,  x
+                                    ; unpack words:
+    punpcklwd   m0, m1              ; m0 =  0,  1,  6,  7, 12, 13, 18, 19
+    punpcklwd   m2, m3              ; m2 =  4,  5, 10, 11, 16, 17, 22, 23
+    punpcklwd   m4, m5              ; m4 =  2,  3,  8,  9, 14, 15, 20, 21
+                                    ; blend dwords
+    shufps      m1, m0, m2, q2020   ; m1 =  0,  1, 12, 13,  2,  3, 14, 15
+    shufps      m0, m4, q2031       ; m0 =  6,  7, 18, 19,  4,  5, 16, 17
+    shufps      m2, m4, q3131       ; m2 =  8,  9, 20, 21, 10, 11, 22, 23
+                                    ; shuffle dwords
+    pshufd      m0, m0, q1302       ; m0 =  4,  5,  6,  7, 16, 17, 18, 19
+    pshufd      m1, m1, q3120       ; m1 =  0,  1,  2,  3, 12, 13, 14, 15
+    pshufd      m2, m2, q3120       ; m2 =  8,  9, 10, 11, 20, 21, 22, 23
+    movq   [dstq+0*mmsize/2], m1
+    movq   [dstq+1*mmsize/2], m0
+    movq   [dstq+2*mmsize/2], m2
+    movhps [dstq+3*mmsize/2], m1
+    movhps [dstq+4*mmsize/2], m0
+    movhps [dstq+5*mmsize/2], m2
+    add      src0q, mmsize/2
+    add       dstq, mmsize*3
+    sub       lend, mmsize/4
+%else
+    mova        m0, [src0q      ]   ; m0 =  0,  6, 12, 18, 24, 30, 36, 42
+    mova        m1, [src0q+src1q]   ; m1 =  1,  7, 13, 19, 25, 31, 37, 43
+    mova        m2, [src0q+src2q]   ; m2 =  2,  8, 14, 20, 26, 32, 38, 44
+    mova        m3, [src0q+src3q]   ; m3 =  3,  9, 15, 21, 27, 33, 39, 45
+    mova        m4, [src0q+src4q]   ; m4 =  4, 10, 16, 22, 28, 34, 40, 46
+    mova        m5, [src0q+src5q]   ; m5 =  5, 11, 17, 23, 29, 35, 41, 47
+                                    ; unpack words:
+    SBUTTERFLY2 wd, 0, 1, 6         ; m0 =  0,  1,  6,  7, 12, 13, 18, 19
+                                    ; m1 = 24, 25, 30, 31, 36, 37, 42, 43
+    SBUTTERFLY2 wd, 2, 3, 6         ; m2 =  2,  3,  8,  9, 14, 15, 20, 21
+                                    ; m3 = 26, 27, 32, 33, 38, 39, 44, 45
+    SBUTTERFLY2 wd, 4, 5, 6         ; m4 =  4,  5, 10, 11, 16, 17, 22, 23
+                                    ; m5 = 28, 29, 34, 35, 40, 41, 46, 47
+                                    ; blend dwords
+    shufps      m6, m0, m2, q2020   ; m6 =  0,  1, 12, 13,  2,  3, 14, 15
+    shufps      m0, m4, q2031       ; m0 =  6,  7, 18, 19,  4,  5, 16, 17
+    shufps      m2, m4, q3131       ; m2 =  8,  9, 20, 21, 10, 11, 22, 23
+    SWAP 4,6                        ; m4 =  0,  1, 12, 13,  2,  3, 14, 15
+    shufps      m6, m1, m3, q2020   ; m6 = 24, 25, 36, 37, 26, 27, 38, 39
+    shufps      m1, m5, q2031       ; m1 = 30, 31, 42, 43, 28, 29, 40, 41
+    shufps      m3, m5, q3131       ; m3 = 32, 33, 44, 45, 34, 35, 46, 47
+    SWAP 5,6                        ; m5 = 24, 25, 36, 37, 26, 27, 38, 39
+                                    ; shuffle dwords
+    pshufd      m0, m0, q1302       ; m0 =  4,  5,  6,  7, 16, 17, 18, 19
+    pshufd      m2, m2, q3120       ; m2 =  8,  9, 10, 11, 20, 21, 22, 23
+    pshufd      m4, m4, q3120       ; m4 =  0,  1,  2,  3, 12, 13, 14, 15
+    pshufd      m1, m1, q1302       ; m1 = 28, 29, 30, 31, 40, 41, 42, 43
+    pshufd      m3, m3, q3120       ; m3 = 32, 33, 34, 35, 44, 45, 46, 47
+    pshufd      m5, m5, q3120       ; m5 = 24, 25, 26, 27, 36, 37, 38, 39
+                                    ; shuffle qwords
+    punpcklqdq  m6, m4, m0          ; m6 =  0,  1,  2,  3,  4,  5,  6,  7
+    punpckhqdq  m0, m2              ; m0 = 16, 17, 18, 19, 20, 21, 22, 23
+    shufps      m2, m4, q3210       ; m2 =  8,  9, 10, 11, 12, 13, 14, 15
+    SWAP 4,6                        ; m4 =  0,  1,  2,  3,  4,  5,  6,  7
+    punpcklqdq  m6, m5, m1          ; m6 = 24, 25, 26, 27, 28, 29, 30, 31
+    punpckhqdq  m1, m3              ; m1 = 40, 41, 42, 43, 44, 45, 46, 47
+    shufps      m3, m5, q3210       ; m3 = 32, 33, 34, 35, 36, 37, 38, 39
+    SWAP 5,6                        ; m5 = 24, 25, 26, 27, 28, 29, 30, 31
+    mova   [dstq+0*mmsize], m4
+    mova   [dstq+1*mmsize], m2
+    mova   [dstq+2*mmsize], m0
+    mova   [dstq+3*mmsize], m5
+    mova   [dstq+4*mmsize], m3
+    mova   [dstq+5*mmsize], m1
+    add      src0q, mmsize
+    add       dstq, mmsize*6
+    sub       lend, mmsize/2
+%endif
+    jg .loop
+    REP_RET
+%endmacro
+
+INIT_XMM sse2
+CONV_S16P_TO_S16_6CH
+INIT_XMM sse2slow
+CONV_S16P_TO_S16_6CH
+%if HAVE_AVX
+INIT_XMM avx
+CONV_S16P_TO_S16_6CH
+%endif
+
+;------------------------------------------------------------------------------
+; void ff_conv_s16p_to_flt_2ch(float *dst, int16_t *const *src, int len,
+;                              int channels);
+;------------------------------------------------------------------------------
+
+%macro CONV_S16P_TO_FLT_2CH 0
+cglobal conv_s16p_to_flt_2ch, 3,4,6, dst, src0, len, src1
+    lea       lenq, [2*lend]
+    mov      src1q, [src0q+gprsize]
+    mov      src0q, [src0q        ]
+    lea       dstq, [dstq+4*lenq]
+    add      src0q, lenq
+    add      src1q, lenq
+    neg       lenq
+    mova        m5, [pf_s32_inv_scale]
+.loop:
+    mova        m2, [src0q+lenq]    ; m2 =  0,  2,  4,  6,  8, 10, 12, 14
+    mova        m4, [src1q+lenq]    ; m4 =  1,  3,  5,  7,  9, 11, 13, 15
+    SBUTTERFLY2 wd, 2, 4, 3         ; m2 =  0,  1,  2,  3,  4,  5,  6,  7
+                                    ; m4 =  8,  9, 10, 11, 12, 13, 14, 15
+    pxor        m3, m3
+    punpcklwd   m0, m3, m2          ; m0 =      0,      1,      2,      3
+    punpckhwd   m1, m3, m2          ; m1 =      4,      5,      6,      7
+    punpcklwd   m2, m3, m4          ; m2 =      8,      9,     10,     11
+    punpckhwd   m3, m4              ; m3 =     12,     13,     14,     15
+    cvtdq2ps    m0, m0
+    cvtdq2ps    m1, m1
+    cvtdq2ps    m2, m2
+    cvtdq2ps    m3, m3
+    mulps       m0, m5
+    mulps       m1, m5
+    mulps       m2, m5
+    mulps       m3, m5
+    mova  [dstq+4*lenq         ], m0
+    mova  [dstq+4*lenq+  mmsize], m1
+    mova  [dstq+4*lenq+2*mmsize], m2
+    mova  [dstq+4*lenq+3*mmsize], m3
+    add       lenq, mmsize
+    jl .loop
+    REP_RET
+%endmacro
+
+INIT_XMM sse2
+CONV_S16P_TO_FLT_2CH
+%if HAVE_AVX
+INIT_XMM avx
+CONV_S16P_TO_FLT_2CH
+%endif
+
+;------------------------------------------------------------------------------
+; void ff_conv_s16p_to_flt_6ch(float *dst, int16_t *const *src, int len,
+;                              int channels);
+;------------------------------------------------------------------------------
+
+%macro CONV_S16P_TO_FLT_6CH 0
+%if ARCH_X86_64
+cglobal conv_s16p_to_flt_6ch, 3,8,8, dst, src, len, src1, src2, src3, src4, src5
+%else
+cglobal conv_s16p_to_flt_6ch, 2,7,8, dst, src, src1, src2, src3, src4, src5
+%define lend dword r2m
+%endif
+    mov     src1q, [srcq+1*gprsize]
+    mov     src2q, [srcq+2*gprsize]
+    mov     src3q, [srcq+3*gprsize]
+    mov     src4q, [srcq+4*gprsize]
+    mov     src5q, [srcq+5*gprsize]
+    mov      srcq, [srcq]
+    sub     src1q, srcq
+    sub     src2q, srcq
+    sub     src3q, srcq
+    sub     src4q, srcq
+    sub     src5q, srcq
+    mova       m7, [pf_s32_inv_scale]
+%if cpuflag(ssse3)
+    %define unpack_even m6
+    mova       m6, [pb_shuf_unpack_even]
+%if ARCH_X86_64
+    %define unpack_odd m8
+    mova       m8, [pb_shuf_unpack_odd]
+%else
+    %define unpack_odd [pb_shuf_unpack_odd]
+%endif
+%endif
+.loop:
+    movq       m0, [srcq      ]  ; m0 =  0,  6, 12, 18,  x,  x,  x,  x
+    movq       m1, [srcq+src1q]  ; m1 =  1,  7, 13, 19,  x,  x,  x,  x
+    movq       m2, [srcq+src2q]  ; m2 =  2,  8, 14, 20,  x,  x,  x,  x
+    movq       m3, [srcq+src3q]  ; m3 =  3,  9, 15, 21,  x,  x,  x,  x
+    movq       m4, [srcq+src4q]  ; m4 =  4, 10, 16, 22,  x,  x,  x,  x
+    movq       m5, [srcq+src5q]  ; m5 =  5, 11, 17, 23,  x,  x,  x,  x
+                                 ; unpack words:
+    punpcklwd  m0, m1            ; m0 =  0,  1,  6,  7, 12, 13, 18, 19
+    punpcklwd  m2, m3            ; m2 =  2,  3,  8,  9, 14, 15, 20, 21
+    punpcklwd  m4, m5            ; m4 =  4,  5, 10, 11, 16, 17, 22, 23
+                                 ; blend dwords
+    shufps     m1, m4, m0, q3120 ; m1 =  4,  5, 16, 17,  6,  7, 18, 19
+    shufps         m0, m2, q2020 ; m0 =  0,  1, 12, 13,  2,  3, 14, 15
+    shufps         m2, m4, q3131 ; m2 =  8,  9, 20, 21, 10, 11, 22, 23
+%if cpuflag(ssse3)
+    pshufb     m3, m0, unpack_odd   ; m3 =  12,     13,     14,     15
+    pshufb         m0, unpack_even  ; m0 =   0,      1,      2,      3
+    pshufb     m4, m1, unpack_odd   ; m4 =  16,     17,     18,     19
+    pshufb         m1, unpack_even  ; m1 =   4,      5,      6,      7
+    pshufb     m5, m2, unpack_odd   ; m5 =  20,     21,     22,     23
+    pshufb         m2, unpack_even  ; m2 =   8,      9,     10,     11
+%else
+                                 ; shuffle dwords
+    pshufd     m0, m0, q3120     ; m0 =  0,  1,  2,  3, 12, 13, 14, 15
+    pshufd     m1, m1, q3120     ; m1 =  4,  5,  6,  7, 16, 17, 18, 19
+    pshufd     m2, m2, q3120     ; m2 =  8,  9, 10, 11, 20, 21, 22, 23
+    pxor       m6, m6            ; convert s16 in m0-m2 to s32 in m0-m5
+    punpcklwd  m3, m6, m0        ; m3 =      0,      1,      2,      3
+    punpckhwd  m4, m6, m0        ; m4 =     12,     13,     14,     15
+    punpcklwd  m0, m6, m1        ; m0 =      4,      5,      6,      7
+    punpckhwd  m5, m6, m1        ; m5 =     16,     17,     18,     19
+    punpcklwd  m1, m6, m2        ; m1 =      8,      9,     10,     11
+    punpckhwd      m6, m2        ; m6 =     20,     21,     22,     23
+    SWAP 6,2,1,0,3,4,5           ; swap registers 3,0,1,4,5,6 to 0,1,2,3,4,5
+%endif
+    cvtdq2ps   m0, m0            ; convert s32 to float
+    cvtdq2ps   m1, m1
+    cvtdq2ps   m2, m2
+    cvtdq2ps   m3, m3
+    cvtdq2ps   m4, m4
+    cvtdq2ps   m5, m5
+    mulps      m0, m7            ; scale float from s32 range to [-1.0,1.0]
+    mulps      m1, m7
+    mulps      m2, m7
+    mulps      m3, m7
+    mulps      m4, m7
+    mulps      m5, m7
+    mova  [dstq         ], m0
+    mova  [dstq+  mmsize], m1
+    mova  [dstq+2*mmsize], m2
+    mova  [dstq+3*mmsize], m3
+    mova  [dstq+4*mmsize], m4
+    mova  [dstq+5*mmsize], m5
+    add      srcq, mmsize/2
+    add      dstq, mmsize*6
+    sub      lend, mmsize/4
+    jg .loop
+    REP_RET
+%endmacro
+
+INIT_XMM sse2
+CONV_S16P_TO_FLT_6CH
+INIT_XMM ssse3
+CONV_S16P_TO_FLT_6CH
+%if HAVE_AVX
+INIT_XMM avx
+CONV_S16P_TO_FLT_6CH
+%endif
+
+;------------------------------------------------------------------------------
+; void ff_conv_fltp_to_s16_2ch(int16_t *dst, float *const *src, int len,
+;                              int channels);
+;------------------------------------------------------------------------------
+
+%macro CONV_FLTP_TO_S16_2CH 0
+cglobal conv_fltp_to_s16_2ch, 3,4,3, dst, src0, len, src1
+    lea      lenq, [4*lend]
+    mov     src1q, [src0q+gprsize]
+    mov     src0q, [src0q        ]
+    add      dstq, lenq
+    add     src0q, lenq
+    add     src1q, lenq
+    neg      lenq
+    mova       m2, [pf_s16_scale]
+%if cpuflag(ssse3)
+    mova       m3, [pb_interleave_words]
+%endif
+.loop:
+    mulps      m0, m2, [src0q+lenq] ; m0 =    0,    2,    4,    6
+    mulps      m1, m2, [src1q+lenq] ; m1 =    1,    3,    5,    7
+    cvtps2dq   m0, m0
+    cvtps2dq   m1, m1
+%if cpuflag(ssse3)
+    packssdw   m0, m1               ; m0 = 0, 2, 4, 6, 1, 3, 5, 7
+    pshufb     m0, m3               ; m0 = 0, 1, 2, 3, 4, 5, 6, 7
+%else
+    packssdw   m0, m0               ; m0 = 0, 2, 4, 6, x, x, x, x
+    packssdw   m1, m1               ; m1 = 1, 3, 5, 7, x, x, x, x
+    punpcklwd  m0, m1               ; m0 = 0, 1, 2, 3, 4, 5, 6, 7
+%endif
+    mova  [dstq+lenq], m0
+    add      lenq, mmsize
+    jl .loop
+    REP_RET
+%endmacro
+
+INIT_XMM sse2
+CONV_FLTP_TO_S16_2CH
+INIT_XMM ssse3
+CONV_FLTP_TO_S16_2CH
+
+;------------------------------------------------------------------------------
+; void ff_conv_fltp_to_s16_6ch(int16_t *dst, float *const *src, int len,
+;                              int channels);
+;------------------------------------------------------------------------------
+
+%macro CONV_FLTP_TO_S16_6CH 0
+%if ARCH_X86_64
+cglobal conv_fltp_to_s16_6ch, 3,8,7, dst, src, len, src1, src2, src3, src4, src5
+%else
+cglobal conv_fltp_to_s16_6ch, 2,7,7, dst, src, src1, src2, src3, src4, src5
+%define lend dword r2m
+%endif
+    mov        src1q, [srcq+1*gprsize]
+    mov        src2q, [srcq+2*gprsize]
+    mov        src3q, [srcq+3*gprsize]
+    mov        src4q, [srcq+4*gprsize]
+    mov        src5q, [srcq+5*gprsize]
+    mov         srcq, [srcq]
+    sub        src1q, srcq
+    sub        src2q, srcq
+    sub        src3q, srcq
+    sub        src4q, srcq
+    sub        src5q, srcq
+    movaps      xmm6, [pf_s16_scale]
+.loop:
+%if cpuflag(sse2)
+    mulps         m0, m6, [srcq      ]
+    mulps         m1, m6, [srcq+src1q]
+    mulps         m2, m6, [srcq+src2q]
+    mulps         m3, m6, [srcq+src3q]
+    mulps         m4, m6, [srcq+src4q]
+    mulps         m5, m6, [srcq+src5q]
+    cvtps2dq      m0, m0
+    cvtps2dq      m1, m1
+    cvtps2dq      m2, m2
+    cvtps2dq      m3, m3
+    cvtps2dq      m4, m4
+    cvtps2dq      m5, m5
+    packssdw      m0, m3            ; m0 =  0,  6, 12, 18,  3,  9, 15, 21
+    packssdw      m1, m4            ; m1 =  1,  7, 13, 19,  4, 10, 16, 22
+    packssdw      m2, m5            ; m2 =  2,  8, 14, 20,  5, 11, 17, 23
+                                    ; unpack words:
+    movhlps       m3, m0            ; m3 =  3,  9, 15, 21,  x,  x,  x,  x
+    punpcklwd     m0, m1            ; m0 =  0,  1,  6,  7, 12, 13, 18, 19
+    punpckhwd     m1, m2            ; m1 =  4,  5, 10, 11, 16, 17, 22, 23
+    punpcklwd     m2, m3            ; m2 =  2,  3,  8,  9, 14, 15, 20, 21
+                                    ; blend dwords:
+    shufps        m3, m0, m2, q2020 ; m3 =  0,  1, 12, 13,  2,  3, 14, 15
+    shufps        m0, m1, q2031     ; m0 =  6,  7, 18, 19,  4,  5, 16, 17
+    shufps        m2, m1, q3131     ; m2 =  8,  9, 20, 21, 10, 11, 22, 23
+                                    ; shuffle dwords:
+    shufps        m1, m2, m3, q3120 ; m1 =  8,  9, 10, 11, 12, 13, 14, 15
+    shufps        m3, m0,     q0220 ; m3 =  0,  1,  2,  3,  4,  5,  6,  7
+    shufps        m0, m2,     q3113 ; m0 = 16, 17, 18, 19, 20, 21, 22, 23
+    mova  [dstq+0*mmsize], m3
+    mova  [dstq+1*mmsize], m1
+    mova  [dstq+2*mmsize], m0
+%else ; sse
+    movlps      xmm0, [srcq      ]
+    movlps      xmm1, [srcq+src1q]
+    movlps      xmm2, [srcq+src2q]
+    movlps      xmm3, [srcq+src3q]
+    movlps      xmm4, [srcq+src4q]
+    movlps      xmm5, [srcq+src5q]
+    mulps       xmm0, xmm6
+    mulps       xmm1, xmm6
+    mulps       xmm2, xmm6
+    mulps       xmm3, xmm6
+    mulps       xmm4, xmm6
+    mulps       xmm5, xmm6
+    cvtps2pi     mm0, xmm0
+    cvtps2pi     mm1, xmm1
+    cvtps2pi     mm2, xmm2
+    cvtps2pi     mm3, xmm3
+    cvtps2pi     mm4, xmm4
+    cvtps2pi     mm5, xmm5
+    packssdw     mm0, mm3           ; m0 =  0,  6,  3,  9
+    packssdw     mm1, mm4           ; m1 =  1,  7,  4, 10
+    packssdw     mm2, mm5           ; m2 =  2,  8,  5, 11
+                                    ; unpack words
+    pshufw       mm3, mm0, q1032    ; m3 =  3,  9,  0,  6
+    punpcklwd    mm0, mm1           ; m0 =  0,  1,  6,  7
+    punpckhwd    mm1, mm2           ; m1 =  4,  5, 10, 11
+    punpcklwd    mm2, mm3           ; m2 =  2,  3,  8,  9
+                                    ; unpack dwords
+    pshufw       mm3, mm0, q1032    ; m3 =  6,  7,  0,  1
+    punpckldq    mm0, mm2           ; m0 =  0,  1,  2,  3 (final)
+    punpckhdq    mm2, mm1           ; m2 =  8,  9, 10, 11 (final)
+    punpckldq    mm1, mm3           ; m1 =  4,  5,  6,  7 (final)
+    mova  [dstq+0*mmsize], mm0
+    mova  [dstq+1*mmsize], mm1
+    mova  [dstq+2*mmsize], mm2
+%endif
+    add       srcq, mmsize
+    add       dstq, mmsize*3
+    sub       lend, mmsize/4
+    jg .loop
+%if mmsize == 8
+    emms
+    RET
+%else
+    REP_RET
+%endif
+%endmacro
+
+INIT_MMX sse
+CONV_FLTP_TO_S16_6CH
+INIT_XMM sse2
+CONV_FLTP_TO_S16_6CH
+%if HAVE_AVX
+INIT_XMM avx
+CONV_FLTP_TO_S16_6CH
+%endif
+
+;------------------------------------------------------------------------------
+; void ff_conv_fltp_to_flt_2ch(float *dst, float *const *src, int len,
+;                              int channels);
+;------------------------------------------------------------------------------
+
+%macro CONV_FLTP_TO_FLT_2CH 0
+cglobal conv_fltp_to_flt_2ch, 3,4,5, dst, src0, len, src1
+    mov  src1q, [src0q+gprsize]
+    mov  src0q, [src0q]
+    lea   lenq, [4*lend]
+    add  src0q, lenq
+    add  src1q, lenq
+    lea   dstq, [dstq+2*lenq]
+    neg   lenq
+.loop
+    mova    m0, [src0q+lenq       ]
+    mova    m1, [src1q+lenq       ]
+    mova    m2, [src0q+lenq+mmsize]
+    mova    m3, [src1q+lenq+mmsize]
+    SBUTTERFLYPS 0, 1, 4
+    SBUTTERFLYPS 2, 3, 4
+    mova  [dstq+2*lenq+0*mmsize], m0
+    mova  [dstq+2*lenq+1*mmsize], m1
+    mova  [dstq+2*lenq+2*mmsize], m2
+    mova  [dstq+2*lenq+3*mmsize], m3
+    add   lenq, 2*mmsize
+    jl .loop
+    REP_RET
+%endmacro
+
+INIT_XMM sse
+CONV_FLTP_TO_FLT_2CH
+%if HAVE_AVX
+INIT_XMM avx
+CONV_FLTP_TO_FLT_2CH
+%endif
+
 ;-----------------------------------------------------------------------------
 ; void ff_conv_fltp_to_flt_6ch(float *dst, float *const *src, int len,
 ;                              int channels);
@@ -303,3 +814,449 @@ CONV_FLTP_TO_FLT_6CH
 INIT_XMM avx
 CONV_FLTP_TO_FLT_6CH
 %endif
+
+;------------------------------------------------------------------------------
+; void ff_conv_s16_to_s16p_2ch(int16_t *const *dst, int16_t *src, int len,
+;                              int channels);
+;------------------------------------------------------------------------------
+
+%macro CONV_S16_TO_S16P_2CH 0
+cglobal conv_s16_to_s16p_2ch, 3,4,4, dst0, src, len, dst1
+    lea       lenq, [2*lend]
+    mov      dst1q, [dst0q+gprsize]
+    mov      dst0q, [dst0q        ]
+    lea       srcq, [srcq+2*lenq]
+    add      dst0q, lenq
+    add      dst1q, lenq
+    neg       lenq
+%if cpuflag(ssse3)
+    mova        m3, [pb_deinterleave_words]
+%endif
+.loop:
+    mova        m0, [srcq+2*lenq       ]  ; m0 =  0,  1,  2,  3,  4,  5,  6,  7
+    mova        m1, [srcq+2*lenq+mmsize]  ; m1 =  8,  9, 10, 11, 12, 13, 14, 15
+%if cpuflag(ssse3)
+    pshufb      m0, m3                    ; m0 =  0,  2,  4,  6,  1,  3,  5,  7
+    pshufb      m1, m3                    ; m1 =  8, 10, 12, 14,  9, 11, 13, 15
+    SBUTTERFLY2 qdq, 0, 1, 2              ; m0 =  0,  2,  4,  6,  8, 10, 12, 14
+                                          ; m1 =  1,  3,  5,  7,  9, 11, 13, 15
+%else ; sse2
+    pshuflw     m0, m0, q3120             ; m0 =  0,  2,  1,  3,  4,  5,  6,  7
+    pshufhw     m0, m0, q3120             ; m0 =  0,  2,  1,  3,  4,  6,  5,  7
+    pshuflw     m1, m1, q3120             ; m1 =  8, 10,  9, 11, 12, 13, 14, 15
+    pshufhw     m1, m1, q3120             ; m1 =  8, 10,  9, 11, 12, 14, 13, 15
+    DEINT2_PS    0, 1, 2                  ; m0 =  0,  2,  4,  6,  8, 10, 12, 14
+                                          ; m1 =  1,  3,  5,  7,  9, 11, 13, 15
+%endif
+    mova  [dst0q+lenq], m0
+    mova  [dst1q+lenq], m1
+    add       lenq, mmsize
+    jl .loop
+    REP_RET
+%endmacro
+
+INIT_XMM sse2
+CONV_S16_TO_S16P_2CH
+INIT_XMM ssse3
+CONV_S16_TO_S16P_2CH
+%if HAVE_AVX
+INIT_XMM avx
+CONV_S16_TO_S16P_2CH
+%endif
+
+;------------------------------------------------------------------------------
+; void ff_conv_s16_to_s16p_6ch(int16_t *const *dst, int16_t *src, int len,
+;                              int channels);
+;------------------------------------------------------------------------------
+
+%macro CONV_S16_TO_S16P_6CH 0
+%if ARCH_X86_64
+cglobal conv_s16_to_s16p_6ch, 3,8,5, dst, src, len, dst1, dst2, dst3, dst4, dst5
+%else
+cglobal conv_s16_to_s16p_6ch, 2,7,5, dst, src, dst1, dst2, dst3, dst4, dst5
+%define lend dword r2m
+%endif
+    mov     dst1q, [dstq+  gprsize]
+    mov     dst2q, [dstq+2*gprsize]
+    mov     dst3q, [dstq+3*gprsize]
+    mov     dst4q, [dstq+4*gprsize]
+    mov     dst5q, [dstq+5*gprsize]
+    mov      dstq, [dstq          ]
+    sub     dst1q, dstq
+    sub     dst2q, dstq
+    sub     dst3q, dstq
+    sub     dst4q, dstq
+    sub     dst5q, dstq
+.loop:
+    mova       m0, [srcq+0*mmsize]      ; m0 =  0,  1,  2,  3,  4,  5,  6,  7
+    mova       m3, [srcq+1*mmsize]      ; m3 =  8,  9, 10, 11, 12, 13, 14, 15
+    mova       m2, [srcq+2*mmsize]      ; m2 = 16, 17, 18, 19, 20, 21, 22, 23
+    PALIGNR    m1, m3, m0, 12, m4       ; m1 =  6,  7,  8,  9, 10, 11,  x,  x
+    shufps     m3, m2, q1032            ; m3 = 12, 13, 14, 15, 16, 17, 18, 19
+    psrldq     m2, 4                    ; m2 = 18, 19, 20, 21, 22, 23,  x,  x
+    SBUTTERFLY2 wd, 0, 1, 4             ; m0 =  0,  6,  1,  7,  2,  8,  3,  9
+                                        ; m1 =  4, 10,  5, 11,  x,  x,  x,  x
+    SBUTTERFLY2 wd, 3, 2, 4             ; m3 = 12, 18, 13, 19, 14, 20, 15, 21
+                                        ; m2 = 16, 22, 17, 23,  x,  x,  x,  x
+    SBUTTERFLY2 dq, 0, 3, 4             ; m0 =  0,  6, 12, 18,  1,  7, 13, 19
+                                        ; m3 =  2,  8, 14, 20,  3,  9, 15, 21
+    punpckldq  m1, m2                   ; m1 =  4, 10, 16, 22,  5, 11, 17, 23
+    movq    [dstq      ], m0
+    movhps  [dstq+dst1q], m0
+    movq    [dstq+dst2q], m3
+    movhps  [dstq+dst3q], m3
+    movq    [dstq+dst4q], m1
+    movhps  [dstq+dst5q], m1
+    add      srcq, mmsize*3
+    add      dstq, mmsize/2
+    sub      lend, mmsize/4
+    jg .loop
+    REP_RET
+%endmacro
+
+%define PALIGNR PALIGNR_MMX
+INIT_XMM sse2
+CONV_S16_TO_S16P_6CH
+%define PALIGNR PALIGNR_SSSE3
+INIT_XMM ssse3
+CONV_S16_TO_S16P_6CH
+%if HAVE_AVX
+INIT_XMM avx
+CONV_S16_TO_S16P_6CH
+%endif
+
+;------------------------------------------------------------------------------
+; void ff_conv_s16_to_fltp_2ch(float *const *dst, int16_t *src, int len,
+;                              int channels);
+;------------------------------------------------------------------------------
+
+%macro CONV_S16_TO_FLTP_2CH 0
+cglobal conv_s16_to_fltp_2ch, 3,4,5, dst0, src, len, dst1
+    lea       lenq, [4*lend]
+    mov      dst1q, [dst0q+gprsize]
+    mov      dst0q, [dst0q        ]
+    add       srcq, lenq
+    add      dst0q, lenq
+    add      dst1q, lenq
+    neg       lenq
+    mova        m3, [pf_s32_inv_scale]
+    mova        m4, [pw_zero_even]
+.loop:
+    mova        m1, [srcq+lenq]
+    pslld       m0, m1, 16
+    pand        m1, m4
+    cvtdq2ps    m0, m0
+    cvtdq2ps    m1, m1
+    mulps       m0, m0, m3
+    mulps       m1, m1, m3
+    mova  [dst0q+lenq], m0
+    mova  [dst1q+lenq], m1
+    add       lenq, mmsize
+    jl .loop
+    REP_RET
+%endmacro
+
+INIT_XMM sse2
+CONV_S16_TO_FLTP_2CH
+%if HAVE_AVX
+INIT_XMM avx
+CONV_S16_TO_FLTP_2CH
+%endif
+
+;------------------------------------------------------------------------------
+; void ff_conv_s16_to_fltp_6ch(float *const *dst, int16_t *src, int len,
+;                              int channels);
+;------------------------------------------------------------------------------
+
+%macro CONV_S16_TO_FLTP_6CH 0
+%if ARCH_X86_64
+cglobal conv_s16_to_fltp_6ch, 3,8,7, dst, src, len, dst1, dst2, dst3, dst4, dst5
+%else
+cglobal conv_s16_to_fltp_6ch, 2,7,7, dst, src, dst1, dst2, dst3, dst4, dst5
+%define lend dword r2m
+%endif
+    mov     dst1q, [dstq+  gprsize]
+    mov     dst2q, [dstq+2*gprsize]
+    mov     dst3q, [dstq+3*gprsize]
+    mov     dst4q, [dstq+4*gprsize]
+    mov     dst5q, [dstq+5*gprsize]
+    mov      dstq, [dstq          ]
+    sub     dst1q, dstq
+    sub     dst2q, dstq
+    sub     dst3q, dstq
+    sub     dst4q, dstq
+    sub     dst5q, dstq
+    mova       m6, [pf_s16_inv_scale]
+.loop:
+    mova       m0, [srcq+0*mmsize]  ; m0 =  0,  1,  2,  3,  4,  5,  6,  7
+    mova       m3, [srcq+1*mmsize]  ; m3 =  8,  9, 10, 11, 12, 13, 14, 15
+    mova       m2, [srcq+2*mmsize]  ; m2 = 16, 17, 18, 19, 20, 21, 22, 23
+    PALIGNR    m1, m3, m0, 12, m4   ; m1 =  6,  7,  8,  9, 10, 11,  x,  x
+    shufps     m3, m2, q1032        ; m3 = 12, 13, 14, 15, 16, 17, 18, 19
+    psrldq     m2, 4                ; m2 = 18, 19, 20, 21, 22, 23,  x,  x
+    SBUTTERFLY2 wd, 0, 1, 4         ; m0 =  0,  6,  1,  7,  2,  8,  3,  9
+                                    ; m1 =  4, 10,  5, 11,  x,  x,  x,  x
+    SBUTTERFLY2 wd, 3, 2, 4         ; m3 = 12, 18, 13, 19, 14, 20, 15, 21
+                                    ; m2 = 16, 22, 17, 23,  x,  x,  x,  x
+    SBUTTERFLY2 dq, 0, 3, 4         ; m0 =  0,  6, 12, 18,  1,  7, 13, 19
+                                    ; m3 =  2,  8, 14, 20,  3,  9, 15, 21
+    punpckldq  m1, m2               ; m1 =  4, 10, 16, 22,  5, 11, 17, 23
+    S16_TO_S32_SX 0, 2              ; m0 =      0,      6,     12,     18
+                                    ; m2 =      1,      7,     13,     19
+    S16_TO_S32_SX 3, 4              ; m3 =      2,      8,     14,     20
+                                    ; m4 =      3,      9,     15,     21
+    S16_TO_S32_SX 1, 5              ; m1 =      4,     10,     16,     22
+                                    ; m5 =      5,     11,     17,     23
+    SWAP 1,2,3,4
+    cvtdq2ps   m0, m0
+    cvtdq2ps   m1, m1
+    cvtdq2ps   m2, m2
+    cvtdq2ps   m3, m3
+    cvtdq2ps   m4, m4
+    cvtdq2ps   m5, m5
+    mulps      m0, m6
+    mulps      m1, m6
+    mulps      m2, m6
+    mulps      m3, m6
+    mulps      m4, m6
+    mulps      m5, m6
+    mova  [dstq      ], m0
+    mova  [dstq+dst1q], m1
+    mova  [dstq+dst2q], m2
+    mova  [dstq+dst3q], m3
+    mova  [dstq+dst4q], m4
+    mova  [dstq+dst5q], m5
+    add      srcq, mmsize*3
+    add      dstq, mmsize
+    sub      lend, mmsize/4
+    jg .loop
+    REP_RET
+%endmacro
+
+%define PALIGNR PALIGNR_MMX
+INIT_XMM sse2
+CONV_S16_TO_FLTP_6CH
+%define PALIGNR PALIGNR_SSSE3
+INIT_XMM ssse3
+CONV_S16_TO_FLTP_6CH
+INIT_XMM sse4
+CONV_S16_TO_FLTP_6CH
+%if HAVE_AVX
+INIT_XMM avx
+CONV_S16_TO_FLTP_6CH
+%endif
+
+;------------------------------------------------------------------------------
+; void ff_conv_flt_to_s16p_2ch(int16_t *const *dst, float *src, int len,
+;                              int channels);
+;------------------------------------------------------------------------------
+
+%macro CONV_FLT_TO_S16P_2CH 0
+cglobal conv_flt_to_s16p_2ch, 3,4,6, dst0, src, len, dst1
+    lea       lenq, [2*lend]
+    mov      dst1q, [dst0q+gprsize]
+    mov      dst0q, [dst0q        ]
+    lea       srcq, [srcq+4*lenq]
+    add      dst0q, lenq
+    add      dst1q, lenq
+    neg       lenq
+    mova        m5, [pf_s16_scale]
+.loop:
+    mova       m0, [srcq+4*lenq         ]
+    mova       m1, [srcq+4*lenq+  mmsize]
+    mova       m2, [srcq+4*lenq+2*mmsize]
+    mova       m3, [srcq+4*lenq+3*mmsize]
+    DEINT2_PS   0, 1, 4
+    DEINT2_PS   2, 3, 4
+    mulps      m0, m0, m5
+    mulps      m1, m1, m5
+    mulps      m2, m2, m5
+    mulps      m3, m3, m5
+    cvtps2dq   m0, m0
+    cvtps2dq   m1, m1
+    cvtps2dq   m2, m2
+    cvtps2dq   m3, m3
+    packssdw   m0, m2
+    packssdw   m1, m3
+    mova  [dst0q+lenq], m0
+    mova  [dst1q+lenq], m1
+    add      lenq, mmsize
+    jl .loop
+    REP_RET
+%endmacro
+
+INIT_XMM sse2
+CONV_FLT_TO_S16P_2CH
+%if HAVE_AVX
+INIT_XMM avx
+CONV_FLT_TO_S16P_2CH
+%endif
+
+;------------------------------------------------------------------------------
+; void ff_conv_flt_to_s16p_6ch(int16_t *const *dst, float *src, int len,
+;                              int channels);
+;------------------------------------------------------------------------------
+
+%macro CONV_FLT_TO_S16P_6CH 0
+%if ARCH_X86_64
+cglobal conv_flt_to_s16p_6ch, 3,8,7, dst, src, len, dst1, dst2, dst3, dst4, dst5
+%else
+cglobal conv_flt_to_s16p_6ch, 2,7,7, dst, src, dst1, dst2, dst3, dst4, dst5
+%define lend dword r2m
+%endif
+    mov     dst1q, [dstq+  gprsize]
+    mov     dst2q, [dstq+2*gprsize]
+    mov     dst3q, [dstq+3*gprsize]
+    mov     dst4q, [dstq+4*gprsize]
+    mov     dst5q, [dstq+5*gprsize]
+    mov      dstq, [dstq          ]
+    sub     dst1q, dstq
+    sub     dst2q, dstq
+    sub     dst3q, dstq
+    sub     dst4q, dstq
+    sub     dst5q, dstq
+    mova       m6, [pf_s16_scale]
+.loop:
+    mulps      m0, m6, [srcq+0*mmsize]
+    mulps      m3, m6, [srcq+1*mmsize]
+    mulps      m1, m6, [srcq+2*mmsize]
+    mulps      m4, m6, [srcq+3*mmsize]
+    mulps      m2, m6, [srcq+4*mmsize]
+    mulps      m5, m6, [srcq+5*mmsize]
+    cvtps2dq   m0, m0
+    cvtps2dq   m1, m1
+    cvtps2dq   m2, m2
+    cvtps2dq   m3, m3
+    cvtps2dq   m4, m4
+    cvtps2dq   m5, m5
+    packssdw   m0, m3               ; m0 =  0,  1,  2,  3,  4,  5,  6,  7
+    packssdw   m1, m4               ; m1 =  8,  9, 10, 11, 12, 13, 14, 15
+    packssdw   m2, m5               ; m2 = 16, 17, 18, 19, 20, 21, 22, 23
+    PALIGNR    m3, m1, m0, 12, m4   ; m3 =  6,  7,  8,  9, 10, 11,  x,  x
+    shufps     m1, m2, q1032        ; m1 = 12, 13, 14, 15, 16, 17, 18, 19
+    psrldq     m2, 4                ; m2 = 18, 19, 20, 21, 22, 23,  x,  x
+    SBUTTERFLY2 wd, 0, 3, 4         ; m0 =  0,  6,  1,  7,  2,  8,  3,  9
+                                    ; m3 =  4, 10,  5, 11,  x,  x,  x,  x
+    SBUTTERFLY2 wd, 1, 2, 4         ; m1 = 12, 18, 13, 19, 14, 20, 15, 21
+                                    ; m2 = 16, 22, 17, 23,  x,  x,  x,  x
+    SBUTTERFLY2 dq, 0, 1, 4         ; m0 =  0,  6, 12, 18,  1,  7, 13, 19
+                                    ; m1 =  2,  8, 14, 20,  3,  9, 15, 21
+    punpckldq  m3, m2               ; m3 =  4, 10, 16, 22,  5, 11, 17, 23
+    movq    [dstq      ], m0
+    movhps  [dstq+dst1q], m0
+    movq    [dstq+dst2q], m1
+    movhps  [dstq+dst3q], m1
+    movq    [dstq+dst4q], m3
+    movhps  [dstq+dst5q], m3
+    add      srcq, mmsize*6
+    add      dstq, mmsize/2
+    sub      lend, mmsize/4
+    jg .loop
+    REP_RET
+%endmacro
+
+%define PALIGNR PALIGNR_MMX
+INIT_XMM sse2
+CONV_FLT_TO_S16P_6CH
+%define PALIGNR PALIGNR_SSSE3
+INIT_XMM ssse3
+CONV_FLT_TO_S16P_6CH
+%if HAVE_AVX
+INIT_XMM avx
+CONV_FLT_TO_S16P_6CH
+%endif
+
+;------------------------------------------------------------------------------
+; void ff_conv_flt_to_fltp_2ch(float *const *dst, float *src, int len,
+;                              int channels);
+;------------------------------------------------------------------------------
+
+%macro CONV_FLT_TO_FLTP_2CH 0
+cglobal conv_flt_to_fltp_2ch, 3,4,3, dst0, src, len, dst1
+    lea    lenq, [4*lend]
+    mov   dst1q, [dst0q+gprsize]
+    mov   dst0q, [dst0q        ]
+    lea    srcq, [srcq+2*lenq]
+    add   dst0q, lenq
+    add   dst1q, lenq
+    neg    lenq
+.loop:
+    mova     m0, [srcq+2*lenq       ]
+    mova     m1, [srcq+2*lenq+mmsize]
+    DEINT2_PS 0, 1, 2
+    mova  [dst0q+lenq], m0
+    mova  [dst1q+lenq], m1
+    add    lenq, mmsize
+    jl .loop
+    REP_RET
+%endmacro
+
+INIT_XMM sse
+CONV_FLT_TO_FLTP_2CH
+%if HAVE_AVX
+INIT_XMM avx
+CONV_FLT_TO_FLTP_2CH
+%endif
+
+;------------------------------------------------------------------------------
+; void ff_conv_flt_to_fltp_6ch(float *const *dst, float *src, int len,
+;                              int channels);
+;------------------------------------------------------------------------------
+
+%macro CONV_FLT_TO_FLTP_6CH 0
+%if ARCH_X86_64
+cglobal conv_flt_to_fltp_6ch, 3,8,7, dst, src, len, dst1, dst2, dst3, dst4, dst5
+%else
+cglobal conv_flt_to_fltp_6ch, 2,7,7, dst, src, dst1, dst2, dst3, dst4, dst5
+%define lend dword r2m
+%endif
+    mov     dst1q, [dstq+  gprsize]
+    mov     dst2q, [dstq+2*gprsize]
+    mov     dst3q, [dstq+3*gprsize]
+    mov     dst4q, [dstq+4*gprsize]
+    mov     dst5q, [dstq+5*gprsize]
+    mov      dstq, [dstq          ]
+    sub     dst1q, dstq
+    sub     dst2q, dstq
+    sub     dst3q, dstq
+    sub     dst4q, dstq
+    sub     dst5q, dstq
+.loop:
+    mova       m0, [srcq+0*mmsize]  ; m0 =  0,  1,  2,  3
+    mova       m1, [srcq+1*mmsize]  ; m1 =  4,  5,  6,  7
+    mova       m2, [srcq+2*mmsize]  ; m2 =  8,  9, 10, 11
+    mova       m3, [srcq+3*mmsize]  ; m3 = 12, 13, 14, 15
+    mova       m4, [srcq+4*mmsize]  ; m4 = 16, 17, 18, 19
+    mova       m5, [srcq+5*mmsize]  ; m5 = 20, 21, 22, 23
+
+    SBUTTERFLY2 dq, 0, 3, 6         ; m0 =  0, 12,  1, 13
+                                    ; m3 =  2, 14,  3, 15
+    SBUTTERFLY2 dq, 1, 4, 6         ; m1 =  4, 16,  5, 17
+                                    ; m4 =  6, 18,  7, 19
+    SBUTTERFLY2 dq, 2, 5, 6         ; m2 =  8, 20,  9, 21
+                                    ; m5 = 10, 22, 11, 23
+    SBUTTERFLY2 dq, 0, 4, 6         ; m0 =  0,  6, 12, 18
+                                    ; m4 =  1,  7, 13, 19
+    SBUTTERFLY2 dq, 3, 2, 6         ; m3 =  2,  8, 14, 20
+                                    ; m2 =  3,  9, 15, 21
+    SBUTTERFLY2 dq, 1, 5, 6         ; m1 =  4, 10, 16, 22
+                                    ; m5 =  5, 11, 17, 23
+    mova [dstq      ], m0
+    mova [dstq+dst1q], m4
+    mova [dstq+dst2q], m3
+    mova [dstq+dst3q], m2
+    mova [dstq+dst4q], m1
+    mova [dstq+dst5q], m5
+    add      srcq, mmsize*6
+    add      dstq, mmsize
+    sub      lend, mmsize/4
+    jg .loop
+    REP_RET
+%endmacro
+
+INIT_XMM sse2
+CONV_FLT_TO_FLTP_6CH
+%if HAVE_AVX
+INIT_XMM avx
+CONV_FLT_TO_FLTP_6CH
+%endif
diff --git a/libavresample/x86/audio_convert_init.c b/libavresample/x86/audio_convert_init.c
index 2de49709c2..a3589c6957 100644
--- a/libavresample/x86/audio_convert_init.c
+++ b/libavresample/x86/audio_convert_init.c
@@ -22,6 +22,8 @@
 #include "libavutil/cpu.h"
 #include "libavresample/audio_convert.h"
 
+/* flat conversions */
+
 extern void ff_conv_s16_to_s32_sse2(int16_t *dst, const int32_t *src, int len);
 
 extern void ff_conv_s16_to_flt_sse2(float *dst, const int16_t *src, int len);
@@ -38,6 +40,49 @@ extern void ff_conv_flt_to_s16_sse2(int16_t *dst, const float *src, int len);
 extern void ff_conv_flt_to_s32_sse2(int32_t *dst, const float *src, int len);
 extern void ff_conv_flt_to_s32_avx (int32_t *dst, const float *src, int len);
 
+/* interleave conversions */
+
+extern void ff_conv_s16p_to_s16_2ch_sse2(int16_t *dst, int16_t *const *src,
+                                         int len, int channels);
+extern void ff_conv_s16p_to_s16_2ch_avx (int16_t *dst, int16_t *const *src,
+                                         int len, int channels);
+
+extern void ff_conv_s16p_to_s16_6ch_sse2(int16_t *dst, int16_t *const *src,
+                                         int len, int channels);
+extern void ff_conv_s16p_to_s16_6ch_sse2slow(int16_t *dst, int16_t *const *src,
+                                             int len, int channels);
+extern void ff_conv_s16p_to_s16_6ch_avx (int16_t *dst, int16_t *const *src,
+                                         int len, int channels);
+
+extern void ff_conv_s16p_to_flt_2ch_sse2(float *dst, int16_t *const *src,
+                                         int len, int channels);
+extern void ff_conv_s16p_to_flt_2ch_avx (float *dst, int16_t *const *src,
+                                         int len, int channels);
+
+extern void ff_conv_s16p_to_flt_6ch_sse2 (float *dst, int16_t *const *src,
+                                          int len, int channels);
+extern void ff_conv_s16p_to_flt_6ch_ssse3(float *dst, int16_t *const *src,
+                                         int len, int channels);
+extern void ff_conv_s16p_to_flt_6ch_avx  (float *dst, int16_t *const *src,
+                                          int len, int channels);
+
+extern void ff_conv_fltp_to_s16_2ch_sse2 (int16_t *dst, float *const *src,
+                                          int len, int channels);
+extern void ff_conv_fltp_to_s16_2ch_ssse3(int16_t *dst, float *const *src,
+                                          int len, int channels);
+
+extern void ff_conv_fltp_to_s16_6ch_sse (int16_t *dst, float *const *src,
+                                         int len, int channels);
+extern void ff_conv_fltp_to_s16_6ch_sse2(int16_t *dst, float *const *src,
+                                         int len, int channels);
+extern void ff_conv_fltp_to_s16_6ch_avx (int16_t *dst, float *const *src,
+                                         int len, int channels);
+
+extern void ff_conv_fltp_to_flt_2ch_sse(float *dst, float *const *src, int len,
+                                        int channels);
+extern void ff_conv_fltp_to_flt_2ch_avx(float *dst, float *const *src, int len,
+                                        int channels);
+
 extern void ff_conv_fltp_to_flt_6ch_mmx (float *dst, float *const *src, int len,
                                          int channels);
 extern void ff_conv_fltp_to_flt_6ch_sse4(float *dst, float *const *src, int len,
@@ -45,6 +90,58 @@ extern void ff_conv_fltp_to_flt_6ch_sse4(float *dst, float *const *src, int len,
 extern void ff_conv_fltp_to_flt_6ch_avx (float *dst, float *const *src, int len,
                                          int channels);
 
+/* deinterleave conversions */
+
+extern void ff_conv_s16_to_s16p_2ch_sse2(int16_t *const *dst, int16_t *src,
+                                         int len, int channels);
+extern void ff_conv_s16_to_s16p_2ch_ssse3(int16_t *const *dst, int16_t *src,
+                                          int len, int channels);
+extern void ff_conv_s16_to_s16p_2ch_avx (int16_t *const *dst, int16_t *src,
+                                         int len, int channels);
+
+extern void ff_conv_s16_to_s16p_6ch_sse2 (int16_t *const *dst, int16_t *src,
+                                          int len, int channels);
+extern void ff_conv_s16_to_s16p_6ch_ssse3(int16_t *const *dst, int16_t *src,
+                                          int len, int channels);
+extern void ff_conv_s16_to_s16p_6ch_avx  (int16_t *const *dst, int16_t *src,
+                                          int len, int channels);
+
+extern void ff_conv_s16_to_fltp_2ch_sse2(float *const *dst, int16_t *src,
+                                         int len, int channels);
+extern void ff_conv_s16_to_fltp_2ch_avx (float *const *dst, int16_t *src,
+                                         int len, int channels);
+
+extern void ff_conv_s16_to_fltp_6ch_sse2 (float *const *dst, int16_t *src,
+                                          int len, int channels);
+extern void ff_conv_s16_to_fltp_6ch_ssse3(float *const *dst, int16_t *src,
+                                          int len, int channels);
+extern void ff_conv_s16_to_fltp_6ch_sse4 (float *const *dst, int16_t *src,
+                                          int len, int channels);
+extern void ff_conv_s16_to_fltp_6ch_avx  (float *const *dst, int16_t *src,
+                                          int len, int channels);
+
+extern void ff_conv_flt_to_s16p_2ch_sse2(int16_t *const *dst, float *src,
+                                         int len, int channels);
+extern void ff_conv_flt_to_s16p_2ch_avx (int16_t *const *dst, float *src,
+                                         int len, int channels);
+
+extern void ff_conv_flt_to_s16p_6ch_sse2 (int16_t *const *dst, float *src,
+                                          int len, int channels);
+extern void ff_conv_flt_to_s16p_6ch_ssse3(int16_t *const *dst, float *src,
+                                          int len, int channels);
+extern void ff_conv_flt_to_s16p_6ch_avx  (int16_t *const *dst, float *src,
+                                          int len, int channels);
+
+extern void ff_conv_flt_to_fltp_2ch_sse(float *const *dst, float *src, int len,
+                                        int channels);
+extern void ff_conv_flt_to_fltp_2ch_avx(float *const *dst, float *src, int len,
+                                        int channels);
+
+extern void ff_conv_flt_to_fltp_6ch_sse2(float *const *dst, float *src, int len,
+                                         int channels);
+extern void ff_conv_flt_to_fltp_6ch_avx (float *const *dst, float *src, int len,
+                                         int channels);
+
 av_cold void ff_audio_convert_init_x86(AudioConvert *ac)
 {
 #if HAVE_YASM
@@ -56,10 +153,25 @@ av_cold void ff_audio_convert_init_x86(AudioConvert *ac)
         ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_FLTP,
                                   6, 1, 4, "MMX", ff_conv_fltp_to_flt_6ch_mmx);
     }
+    if (mm_flags & AV_CPU_FLAG_SSE && HAVE_SSE) {
+        ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_FLTP,
+                                  6, 1, 2, "SSE", ff_conv_fltp_to_s16_6ch_sse);
+        ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_FLTP,
+                                  2, 16, 8, "SSE", ff_conv_fltp_to_flt_2ch_sse);
+        ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_FLTP, AV_SAMPLE_FMT_FLT,
+                                  2, 16, 4, "SSE", ff_conv_flt_to_fltp_2ch_sse);
+    }
     if (mm_flags & AV_CPU_FLAG_SSE2 && HAVE_SSE) {
         if (!(mm_flags & AV_CPU_FLAG_SSE2SLOW)) {
             ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S32,
                                       0, 16, 16, "SSE2", ff_conv_s32_to_s16_sse2);
+            ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S16P,
+                                      6, 16, 8, "SSE2", ff_conv_s16p_to_s16_6ch_sse2);
+            ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_FLTP,
+                                      6, 16, 4, "SSE2", ff_conv_fltp_to_s16_6ch_sse2);
+        } else {
+            ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S16P,
+                                      6, 1, 4, "SSE2SLOW", ff_conv_s16p_to_s16_6ch_sse2slow);
         }
         ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S16,
                                   0, 16, 8, "SSE2", ff_conv_s16_to_s32_sse2);
@@ -71,6 +183,42 @@ av_cold void ff_audio_convert_init_x86(AudioConvert *ac)
                                   0, 16, 16, "SSE2", ff_conv_flt_to_s16_sse2);
         ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_FLT,
                                   0, 16, 16, "SSE2", ff_conv_flt_to_s32_sse2);
+        ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S16P,
+                                  2, 16, 16, "SSE2", ff_conv_s16p_to_s16_2ch_sse2);
+        ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S16P,
+                                  2, 16, 8, "SSE2", ff_conv_s16p_to_flt_2ch_sse2);
+        ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S16P,
+                                  6, 16, 4, "SSE2", ff_conv_s16p_to_flt_6ch_sse2);
+        ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_FLTP,
+                                  2, 16, 4, "SSE2", ff_conv_fltp_to_s16_2ch_sse2);
+        ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_S16P, AV_SAMPLE_FMT_S16,
+                                  2, 16, 8, "SSE2", ff_conv_s16_to_s16p_2ch_sse2);
+        ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_S16P, AV_SAMPLE_FMT_S16,
+                                  6, 16, 4, "SSE2", ff_conv_s16_to_s16p_6ch_sse2);
+        ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_FLTP, AV_SAMPLE_FMT_S16,
+                                  2, 16, 8, "SSE2", ff_conv_s16_to_fltp_2ch_sse2);
+        ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_FLTP, AV_SAMPLE_FMT_S16,
+                                  6, 16, 4, "SSE2", ff_conv_s16_to_fltp_6ch_sse2);
+        ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_S16P, AV_SAMPLE_FMT_FLT,
+                                  2, 16, 8, "SSE2", ff_conv_flt_to_s16p_2ch_sse2);
+        ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_S16P, AV_SAMPLE_FMT_FLT,
+                                  6, 16, 4, "SSE2", ff_conv_flt_to_s16p_6ch_sse2);
+        ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_FLTP, AV_SAMPLE_FMT_FLT,
+                                  6, 16, 4, "SSE2", ff_conv_flt_to_fltp_6ch_sse2);
+    }
+    if (mm_flags & AV_CPU_FLAG_SSSE3 && HAVE_SSE) {
+        ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S16P,
+                                  6, 16, 4, "SSSE3", ff_conv_s16p_to_flt_6ch_ssse3);
+        ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_FLTP,
+                                  2, 16, 4, "SSSE3", ff_conv_fltp_to_s16_2ch_ssse3);
+        ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_S16P, AV_SAMPLE_FMT_S16,
+                                  2, 16, 8, "SSSE3", ff_conv_s16_to_s16p_2ch_ssse3);
+        ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_S16P, AV_SAMPLE_FMT_S16,
+                                  6, 16, 4, "SSSE3", ff_conv_s16_to_s16p_6ch_ssse3);
+        ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_FLTP, AV_SAMPLE_FMT_S16,
+                                  6, 16, 4, "SSSE3", ff_conv_s16_to_fltp_6ch_ssse3);
+        ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_S16P, AV_SAMPLE_FMT_FLT,
+                                  6, 16, 4, "SSSE3", ff_conv_flt_to_s16p_6ch_ssse3);
     }
     if (mm_flags & AV_CPU_FLAG_SSE4 && HAVE_SSE) {
         ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S16,
@@ -83,8 +231,34 @@ av_cold void ff_audio_convert_init_x86(AudioConvert *ac)
                                   0, 32, 16, "AVX", ff_conv_s32_to_flt_avx);
         ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_FLT,
                                   0, 32, 32, "AVX", ff_conv_flt_to_s32_avx);
+        ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S16P,
+                                  2, 16, 16, "AVX", ff_conv_s16p_to_s16_2ch_avx);
+        ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S16P,
+                                  6, 16, 8, "AVX", ff_conv_s16p_to_s16_6ch_avx);
+        ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S16P,
+                                  2, 16, 8, "AVX", ff_conv_s16p_to_flt_2ch_avx);
+        ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S16P,
+                                  6, 16, 4, "AVX", ff_conv_s16p_to_flt_6ch_avx);
+        ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_FLTP,
+                                  6, 16, 4, "AVX", ff_conv_fltp_to_s16_6ch_avx);
         ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_FLTP,
                                   6, 16, 4, "AVX", ff_conv_fltp_to_flt_6ch_avx);
+        ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_S16P, AV_SAMPLE_FMT_S16,
+                                  2, 16, 8, "AVX", ff_conv_s16_to_s16p_2ch_avx);
+        ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_S16P, AV_SAMPLE_FMT_S16,
+                                  6, 16, 4, "AVX", ff_conv_s16_to_s16p_6ch_avx);
+        ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_FLTP, AV_SAMPLE_FMT_S16,
+                                  2, 16, 8, "AVX", ff_conv_s16_to_fltp_2ch_avx);
+        ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_FLTP, AV_SAMPLE_FMT_S16,
+                                  6, 16, 4, "AVX", ff_conv_s16_to_fltp_6ch_avx);
+        ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_S16P, AV_SAMPLE_FMT_FLT,
+                                  2, 16, 8, "AVX", ff_conv_flt_to_s16p_2ch_avx);
+        ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_S16P, AV_SAMPLE_FMT_FLT,
+                                  6, 16, 4, "AVX", ff_conv_flt_to_s16p_6ch_avx);
+        ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_FLTP, AV_SAMPLE_FMT_FLT,
+                                  2, 16, 4, "AVX", ff_conv_flt_to_fltp_2ch_avx);
+        ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_FLTP, AV_SAMPLE_FMT_FLT,
+                                  6, 16, 4, "AVX", ff_conv_flt_to_fltp_6ch_avx);
     }
 #endif
 }
diff --git a/libavresample/x86/util.asm b/libavresample/x86/util.asm
index ca7fde513a..0ce953159c 100644
--- a/libavresample/x86/util.asm
+++ b/libavresample/x86/util.asm
@@ -33,3 +33,9 @@
     psrad        m%1, 16
 %endif
 %endmacro
+
+%macro DEINT2_PS 3 ; src0/even dst, src1/odd dst, temp
+    shufps  m%3, m%1, m%2, q3131
+    shufps       m%1, m%2, q2020
+    SWAP %2,%3
+%endmacro