Remove all Blackfin architecture optimizations

Blackfin is a painful platform to work with, no test machines are available
and the range of multimedia applications is dubious. Thus it only represents
a maintenance burden.

9 files changed, 5 insertions, 903 deletions

diff --git a/libswscale/bfin/Makefile b/libswscale/bfin/Makefile
deleted file mode 100644
index 5f34550427..0000000000
--- a/libswscale/bfin/Makefile
+++ /dev/null
@@ -1,3 +0,0 @@
-OBJS +=  bfin/internal_bfin.o                                           \
-         bfin/swscale_bfin.o                                            \
-         bfin/yuv2rgb_bfin.o                                            \
diff --git a/libswscale/bfin/internal_bfin.S b/libswscale/bfin/internal_bfin.S
deleted file mode 100644
index dca8448a3f..0000000000
--- a/libswscale/bfin/internal_bfin.S
+++ /dev/null
@@ -1,599 +0,0 @@
-/*
- * Copyright (C) 2007 Marc Hoffman <marc.hoffman@analog.com>
- *                    April 20, 2007
- *
- * Blackfin video color space converter operations
- * convert I420 YV12 to RGB in various formats
- *
- * This file is part of Libav.
- *
- * Libav is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * Libav is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-
-/*
-YUV420 to RGB565 conversion. This routine takes a YUV 420 planar macroblock
-and converts it to RGB565. R:5 bits, G:6 bits, B:5 bits.. packed into shorts.
-
-
-The following calculation is used for the conversion:
-
-  r = clipz((y - oy) * cy  + crv * (v - 128))
-  g = clipz((y - oy) * cy  + cgv * (v - 128) + cgu * (u - 128))
-  b = clipz((y - oy) * cy  + cbu * (u - 128))
-
-y, u, v are prescaled by a factor of 4 i.e. left-shifted to gain precision.
-
-
-New factorization to eliminate the truncation error which was
-occurring due to the byteop3p.
-
-
-1) Use the bytop16m to subtract quad bytes we use this in U8 this
- then so the offsets need to be renormalized to 8bits.
-
-2) Scale operands up by a factor of 4 not 8 because Blackfin
-   multiplies include a shift.
-
-3) Compute into the accumulators cy * yx0, cy * yx1.
-
-4) Compute each of the linear equations:
-     r = clipz((y - oy) * cy  + crv * (v - 128))
-
-     g = clipz((y - oy) * cy  + cgv * (v - 128) + cgu * (u - 128))
-
-     b = clipz((y - oy) * cy  + cbu * (u - 128))
-
-   Reuse of the accumulators requires that we actually multiply
-   twice once with addition and the second time with a subtraction.
-
-   Because of this we need to compute the equations in the order R B
-   then G saving the writes for B in the case of 24/32 bit color
-   formats.
-
-   API: yuv2rgb_kind (uint8_t *Y, uint8_t *U, uint8_t *V, int *out,
-                      int dW, uint32_t *coeffs);
-
-       A          B
-       ---        ---
-       i2 = cb    i3 = cr
-       i1 = coeff i0 = y
-
-Where coeffs have the following layout in memory.
-
-uint32_t oy, oc, zero, cy, crv, rmask, cbu, bmask, cgu, cgv;
-
-coeffs is a pointer to oy.
-
-The {rgb} masks are only utilized by the 565 packing algorithm. Note the data
-replication is used to simplify the internal algorithms for the dual Mac
-architecture of BlackFin.
-
-All routines are exported with _ff_bfin_ as a symbol prefix.
-
-Rough performance gain compared against -O3:
-
-2779809/1484290 187.28%
-
-which translates to ~33c/pel to ~57c/pel for the reference vs 17.5
-c/pel for the optimized implementations. Not sure why there is such a
-huge variation on the reference codes on Blackfin I guess it must have
-to do with the memory system.
-*/
-
-#include "libavutil/bfin/asm.h"
-
-#define MEM mL1
-
-
-.text
-
-#define COEFF_LEN        11*4
-#define COEFF_REL_CY_OFF 4*4
-
-#define ARG_OUT   20
-#define ARG_W     24
-#define ARG_COEFF 28
-
-DEFUN(yuv2rgb565_line,MEM,
-   (uint8_t *Y, uint8_t *U, uint8_t *V, int *out, int dW, uint32_t *coeffs)):
-        link 0;
-        [--sp] = (r7:4);
-        p1 = [fp+ARG_OUT];
-        r3 = [fp+ARG_W];
-
-        i0 = r0;
-        i2 = r1;
-        i3 = r2;
-
-        r0 = [fp+ARG_COEFF];
-        i1 = r0;
-        b1 = i1;
-        l1 = COEFF_LEN;
-        m0 = COEFF_REL_CY_OFF;
-        p0 = r3;
-
-        r0   = [i0++];         // 2Y
-        r1.l = w[i2++];        // 2u
-        r1.h = w[i3++];        // 2v
-        p0 = p0>>2;
-
-        lsetup (.L0565, .L1565) lc0 = p0;
-
-        /*
-           uint32_t oy,oc,zero,cy,crv,rmask,cbu,bmask,cgu,cgv
-           r0 -- used to load 4ys
-           r1 -- used to load 2us,2vs
-           r4 -- y3,y2
-           r5 -- y1,y0
-           r6 -- u1,u0
-           r7 -- v1,v0
-        */
-                                                              r2=[i1++]; // oy
-.L0565:
-        /*
-        rrrrrrrr gggggggg bbbbbbbb
-         5432109876543210
-                    bbbbb >>3
-              gggggggg    <<3
-         rrrrrrrr         <<8
-         rrrrrggggggbbbbb
-        */
-        (r4,r5) = byteop16m (r1:0, r3:2)                   || r3=[i1++]; // oc
-        (r7,r6) = byteop16m (r1:0, r3:2) (r);
-        r5 = r5 << 2 (v);                                                // y1,y0
-        r4 = r4 << 2 (v);                                                // y3,y2
-        r6 = r6 << 2 (v)                                   || r0=[i1++]; // u1,u0, r0=zero
-        r7 = r7 << 2 (v)                                   || r1=[i1++]; // v1,v0  r1=cy
-        /* Y' = y*cy */
-        a1 = r1.h*r5.h, a0 = r1.l*r5.l                     || r1=[i1++]; // crv
-
-        /* R = Y+ crv*(Cr-128) */
-        r2.h = (a1 += r1.h*r7.l), r2.l = (a0 += r1.l*r7.l);
-                a1 -= r1.h*r7.l,          a0 -= r1.l*r7.l  || r5=[i1++]; // rmask
-        r2 = byteop3p(r3:2, r1:0)(LO)                      || r1=[i1++]; // cbu
-        r2 = r2 >> 3 (v);
-        r3 = r2 & r5;
-
-        /* B = Y+ cbu*(Cb-128) */
-        r2.h = (a1 += r1.h*r6.l), r2.l = (a0 += r1.l*r6.l);
-                a1 -= r1.h*r6.l,          a0 -= r1.l*r6.l  || r5=[i1++]; // bmask
-        r2 = byteop3p(r3:2, r1:0)(LO)                      || r1=[i1++]; // cgu
-        r2 = r2 << 8 (v);
-        r2 = r2 & r5;
-        r3 = r3 | r2;
-
-        /* G = Y+ cgu*(Cb-128)+cgv*(Cr-128) */
-                a1 += r1.h*r6.l,          a0 += r1.l*r6.l  || r1=[i1++]; // cgv
-        r2.h = (a1 += r1.h*r7.l), r2.l = (a0 += r1.l*r7.l);
-        r2 = byteop3p(r3:2, r1:0)(LO)                      || r5=[i1++m0]; // gmask
-        r2 = r2 << 3 (v);
-        r2 = r2 & r5;
-        r3 = r3 | r2;
-        [p1++]=r3                                          || r1=[i1++]; // cy
-
-        /* Y' = y*cy */
-
-        a1 = r1.h*r4.h, a0 = r1.l*r4.l                     || r1=[i1++]; // crv
-
-        /* R = Y+ crv*(Cr-128) */
-        r2.h = (a1 += r1.h*r7.h), r2.l = (a0 += r1.l*r7.h);
-                a1 -= r1.h*r7.h,          a0 -= r1.l*r7.h  || r5=[i1++]; // rmask
-        r2 = byteop3p(r3:2, r1:0)(LO)                      || r1=[i1++]; // cbu
-        r2 = r2 >> 3 (v);
-        r3 = r2 & r5;
-
-        /* B = Y+ cbu*(Cb-128) */
-        r2.h = (a1 += r1.h*r6.h), r2.l = (a0 += r1.l*r6.h);
-                a1 -= r1.h*r6.h,          a0 -= r1.l*r6.h  || r5=[i1++]; // bmask
-        r2 = byteop3p(r3:2, r1:0)(LO)                      || r1=[i1++]; // cgu
-        r2 = r2 << 8 (v);
-        r2 = r2 & r5;
-        r3 = r3 | r2;
-
-        /* G = Y+ cgu*(Cb-128)+cgv*(Cr-128) */
-                a1 += r1.h*r6.h,          a0 += r1.l*r6.h  || r1=[i1++]; // cgv
-        r2.h = (a1 += r1.h*r7.h), r2.l = (a0 += r1.l*r7.h) || r5=[i1++]; // gmask
-        r2 = byteop3p(r3:2, r1:0)(LO)                      || r0   =  [i0++];        // 2Y
-        r2 = r2 << 3 (v)                                   || r1.l = w[i2++];        // 2u
-        r2 = r2 & r5;
-        r3 = r3 | r2;
-        [p1++]=r3                                          || r1.h = w[i3++];        // 2v
-.L1565:                                                       r2=[i1++]; // oy
-
-        l1 = 0;
-
-        (r7:4) = [sp++];
-        unlink;
-        rts;
-DEFUN_END(yuv2rgb565_line)
-
-DEFUN(yuv2rgb555_line,MEM,
-   (uint8_t *Y, uint8_t *U, uint8_t *V, int *out, int dW, uint32_t *coeffs)):
-        link 0;
-        [--sp] = (r7:4);
-        p1 = [fp+ARG_OUT];
-        r3 = [fp+ARG_W];
-
-        i0 = r0;
-        i2 = r1;
-        i3 = r2;
-
-        r0 = [fp+ARG_COEFF];
-        i1 = r0;
-        b1 = i1;
-        l1 = COEFF_LEN;
-        m0 = COEFF_REL_CY_OFF;
-        p0 = r3;
-
-        r0   = [i0++];         // 2Y
-        r1.l = w[i2++];        // 2u
-        r1.h = w[i3++];        // 2v
-        p0 = p0>>2;
-
-        lsetup (.L0555, .L1555) lc0 = p0;
-
-        /*
-           uint32_t oy,oc,zero,cy,crv,rmask,cbu,bmask,cgu,cgv
-           r0 -- used to load 4ys
-           r1 -- used to load 2us,2vs
-           r4 -- y3,y2
-           r5 -- y1,y0
-           r6 -- u1,u0
-           r7 -- v1,v0
-        */
-                                                              r2=[i1++]; // oy
-.L0555:
-        /*
-        rrrrrrrr gggggggg bbbbbbbb
-         5432109876543210
-                    bbbbb >>3
-               gggggggg   <<2
-          rrrrrrrr        <<7
-         xrrrrrgggggbbbbb
-        */
-
-        (r4,r5) = byteop16m (r1:0, r3:2)                   || r3=[i1++]; // oc
-        (r7,r6) = byteop16m (r1:0, r3:2) (r);
-        r5 = r5 << 2 (v);                                                // y1,y0
-        r4 = r4 << 2 (v);                                                // y3,y2
-        r6 = r6 << 2 (v)                                   || r0=[i1++]; // u1,u0, r0=zero
-        r7 = r7 << 2 (v)                                   || r1=[i1++]; // v1,v0  r1=cy
-        /* Y' = y*cy */
-        a1 = r1.h*r5.h, a0 = r1.l*r5.l                     || r1=[i1++]; // crv
-
-        /* R = Y+ crv*(Cr-128) */
-        r2.h = (a1 += r1.h*r7.l), r2.l = (a0 += r1.l*r7.l);
-                a1 -= r1.h*r7.l,          a0 -= r1.l*r7.l  || r5=[i1++]; // rmask
-        r2 = byteop3p(r3:2, r1:0)(LO)                      || r1=[i1++]; // cbu
-        r2 = r2 >> 3 (v);
-        r3 = r2 & r5;
-
-        /* B = Y+ cbu*(Cb-128) */
-        r2.h = (a1 += r1.h*r6.l), r2.l = (a0 += r1.l*r6.l);
-                a1 -= r1.h*r6.l,          a0 -= r1.l*r6.l  || r5=[i1++]; // bmask
-        r2 = byteop3p(r3:2, r1:0)(LO)                      || r1=[i1++]; // cgu
-        r2 = r2 << 7 (v);
-        r2 = r2 & r5;
-        r3 = r3 | r2;
-
-        /* G = Y+ cgu*(Cb-128)+cgv*(Cr-128) */
-                a1 += r1.h*r6.l,          a0 += r1.l*r6.l  || r1=[i1++]; // cgv
-        r2.h = (a1 += r1.h*r7.l), r2.l = (a0 += r1.l*r7.l);
-        r2 = byteop3p(r3:2, r1:0)(LO)                      || r5=[i1++m0]; // gmask
-        r2 = r2 << 2 (v);
-        r2 = r2 & r5;
-        r3 = r3 | r2;
-        [p1++]=r3                                          || r1=[i1++]; // cy
-
-        /* Y' = y*cy */
-
-        a1 = r1.h*r4.h, a0 = r1.l*r4.l                     || r1=[i1++]; // crv
-
-        /* R = Y+ crv*(Cr-128) */
-        r2.h = (a1 += r1.h*r7.h), r2.l = (a0 += r1.l*r7.h);
-                a1 -= r1.h*r7.h,          a0 -= r1.l*r7.h  || r5=[i1++]; // rmask
-        r2 = byteop3p(r3:2, r1:0)(LO)                      || r1=[i1++]; // cbu
-        r2 = r2 >> 3 (v);
-        r3 = r2 & r5;
-
-        /* B = Y+ cbu*(Cb-128) */
-        r2.h = (a1 += r1.h*r6.h), r2.l = (a0 += r1.l*r6.h);
-                a1 -= r1.h*r6.h,          a0 -= r1.l*r6.h  || r5=[i1++]; // bmask
-        r2 = byteop3p(r3:2, r1:0)(LO)                      || r1=[i1++]; // cgu
-        r2 = r2 << 7 (v);
-        r2 = r2 & r5;
-        r3 = r3 | r2;
-
-        /* G = Y+ cgu*(Cb-128)+cgv*(Cr-128) */
-                a1 += r1.h*r6.h,          a0 += r1.l*r6.h  || r1=[i1++]; // cgv
-        r2.h = (a1 += r1.h*r7.h), r2.l = (a0 += r1.l*r7.h) || r5=[i1++]; // gmask
-        r2 = byteop3p(r3:2, r1:0)(LO)                      || r0=[i0++];     // 4Y
-        r2 = r2 << 2 (v)                                   || r1.l=w[i2++];  // 2u
-        r2 = r2 & r5;
-        r3 = r3 | r2;
-        [p1++]=r3                                          || r1.h=w[i3++]; // 2v
-
-.L1555:                                                       r2=[i1++]; // oy
-
-        l1 = 0;
-
-        (r7:4) = [sp++];
-        unlink;
-        rts;
-DEFUN_END(yuv2rgb555_line)
-
-DEFUN(yuv2rgb24_line,MEM,
-   (uint8_t *Y, uint8_t *U, uint8_t *V, int *out, int dW, uint32_t *coeffs)):
-        link 0;
-        [--sp] = (r7:4);
-        p1 = [fp+ARG_OUT];
-        r3 = [fp+ARG_W];
-        p2 = p1;
-        p2 += 3;
-
-        i0 = r0;
-        i2 = r1;
-        i3 = r2;
-
-        r0 = [fp+ARG_COEFF]; // coeff buffer
-        i1 = r0;
-        b1 = i1;
-        l1 = COEFF_LEN;
-        m0 = COEFF_REL_CY_OFF;
-        p0 = r3;
-
-        r0   = [i0++];         // 2Y
-        r1.l = w[i2++];        // 2u
-        r1.h = w[i3++];        // 2v
-        p0 = p0>>2;
-
-        lsetup (.L0888, .L1888) lc0 = p0;
-
-        /*
-           uint32_t oy,oc,zero,cy,crv,rmask,cbu,bmask,cgu,cgv
-           r0 -- used to load 4ys
-           r1 -- used to load 2us,2vs
-           r4 -- y3,y2
-           r5 -- y1,y0
-           r6 -- u1,u0
-           r7 -- v1,v0
-        */
-                                                              r2=[i1++]; // oy
-.L0888:
-        (r4,r5) = byteop16m (r1:0, r3:2)                   || r3=[i1++]; // oc
-        (r7,r6) = byteop16m (r1:0, r3:2) (r);
-        r5 = r5 << 2 (v);               // y1,y0
-        r4 = r4 << 2 (v);               // y3,y2
-        r6 = r6 << 2 (v) || r0=[i1++];  // u1,u0, r0=zero
-        r7 = r7 << 2 (v) || r1=[i1++];  // v1,v0  r1=cy
-
-        /* Y' = y*cy */
-        a1 = r1.h*r5.h, a0 = r1.l*r5.l                     || r1=[i1++]; // crv
-
-        /* R = Y+ crv*(Cr-128) */
-        r2.h = (a1 += r1.h*r7.l), r2.l = (a0 += r1.l*r7.l);
-                a1 -= r1.h*r7.l,          a0 -= r1.l*r7.l  || r5=[i1++]; // rmask
-        r2 = byteop3p(r3:2, r1:0)(LO)                      || r1=[i1++]; // cbu
-        r2=r2>>16 || B[p1++]=r2;
-                     B[p2++]=r2;
-
-        /* B = Y+ cbu*(Cb-128) */
-        r2.h = (a1 += r1.h*r6.l), r2.l = (a0 += r1.l*r6.l);
-                a1 -= r1.h*r6.l,          a0 -= r1.l*r6.l  || r5=[i1++]; // bmask
-        r3 = byteop3p(r3:2, r1:0)(LO)                      || r1=[i1++]; // cgu
-
-        /* G = Y+ cgu*(Cb-128)+cgv*(Cr-128) */
-                a1 += r1.h*r6.l,          a0 += r1.l*r6.l  || r1=[i1++]; // cgv
-        r2.h = (a1 += r1.h*r7.l), r2.l = (a0 += r1.l*r7.l);
-        r2 = byteop3p(r3:2, r1:0)(LO)                      || r5=[i1++m0]; // gmask, oy,cy,zero
-
-        r2=r2>>16 || B[p1++]=r2;
-                     B[p2++]=r2;
-
-        r3=r3>>16 || B[p1++]=r3;
-                     B[p2++]=r3                            || r1=[i1++]; // cy
-
-        p1+=3;
-        p2+=3;
-        /* Y' = y*cy */
-        a1 = r1.h*r4.h, a0 = r1.l*r4.l                     || r1=[i1++]; // crv
-
-        /* R = Y+ crv*(Cr-128) */
-        r2.h = (a1 += r1.h*r7.h), r2.l = (a0 += r1.l*r7.h);
-                a1 -= r1.h*r7.h,          a0 -= r1.l*r7.h  || r5=[i1++]; // rmask
-        r2 = byteop3p(r3:2, r1:0)(LO)                      || r1=[i1++]; // cbu
-        r2=r2>>16 || B[p1++]=r2;
-        B[p2++]=r2;
-
-        /* B = Y+ cbu*(Cb-128) */
-        r2.h = (a1 += r1.h*r6.h), r2.l = (a0 += r1.l*r6.h);
-                a1 -= r1.h*r6.h,          a0 -= r1.l*r6.h  || r5=[i1++]; // bmask
-        r3 = byteop3p(r3:2, r1:0)(LO)                      || r1=[i1++]; // cgu
-
-        /* G = Y+ cgu*(Cb-128)+cgv*(Cr-128) */
-                a1 += r1.h*r6.h,          a0 += r1.l*r6.h  || r1=[i1++]; // cgv
-        r2.h = (a1 += r1.h*r7.h), r2.l = (a0 += r1.l*r7.h);
-        r2 = byteop3p(r3:2, r1:0)(LO)                      || r5=[i1++]; // gmask
-        r2=r2>>16 || B[p1++]=r2 || r0 = [i0++];    // 4y
-                     B[p2++]=r2 || r1.l = w[i2++]; // 2u
-        r3=r3>>16 || B[p1++]=r3 || r1.h = w[i3++]; // 2v
-                     B[p2++]=r3 || r2=[i1++];      // oy
-
-        p1+=3;
-.L1888: p2+=3;
-
-        l1 = 0;
-
-        (r7:4) = [sp++];
-        unlink;
-        rts;
-DEFUN_END(yuv2rgb24_line)
-
-
-
-#define ARG_vdst        20
-#define ARG_width       24
-#define ARG_height      28
-#define ARG_lumStride   32
-#define ARG_chromStride 36
-#define ARG_srcStride   40
-
-DEFUN(uyvytoyv12, mL3,  (const uint8_t *src, uint8_t *ydst, uint8_t *udst, uint8_t *vdst,
-                         int width, int height,
-                         int lumStride, int chromStride, int srcStride)):
-        link 0;
-        [--sp] = (r7:4,p5:4);
-
-        p0 = r1;       // Y top even
-
-        i2 = r2; // *u
-        r2 = [fp + ARG_vdst];
-        i3 = r2; // *v
-
-        r1 = [fp + ARG_srcStride];
-        r2 = r0 + r1;
-        i0 = r0;  // uyvy_T even
-        i1 = r2;  // uyvy_B odd
-
-        p2 = [fp + ARG_lumStride];
-        p1 = p0 + p2;  // Y bot odd
-
-        p5 = [fp + ARG_width];
-        p4 = [fp + ARG_height];
-        r0 = p5;
-        p4 = p4 >> 1;
-        p5 = p5 >> 2;
-
-        r2 = r0 << 1;
-        r1 = r1 << 1;
-        r1 = r1 - r2;  // srcStride + (srcStride - 2*width)
-        r1 += -8;  // i0,i1 is pre read need to correct
-        m0 = r1;
-
-        r2 = [fp + ARG_chromStride];
-        r0 = r0 >> 1;
-        r2 = r2 - r0;
-        m1 = r2;
-
-        /*   I0,I1 - src input line pointers
-         *   p0,p1 - luma output line pointers
-         *   I2    - dstU
-         *   I3    - dstV
-         */
-
-        lsetup (0f, 1f) lc1 = p4;   // H/2
-0:        r0 = [i0++] || r2 = [i1++];
-          r1 = [i0++] || r3 = [i1++];
-          r4 = byteop1p(r1:0, r3:2);
-          r5 = byteop1p(r1:0, r3:2) (r);
-          lsetup (2f, 3f) lc0 = p5; // W/4
-2:          r0 = r0 >> 8(v);
-            r1 = r1 >> 8(v);
-            r2 = r2 >> 8(v);
-            r3 = r3 >> 8(v);
-            r0 = bytepack(r0, r1);
-            r2 = bytepack(r2, r3)         ||  [p0++] = r0;    // yyyy
-            r6 = pack(r5.l, r4.l)         ||  [p1++] = r2;    // yyyy
-            r7 = pack(r5.h, r4.h)         ||  r0 = [i0++] || r2 = [i1++];
-            r6 = bytepack(r6, r7)         ||  r1 = [i0++] || r3 = [i1++];
-            r4 = byteop1p(r1:0, r3:2)     ||  w[i2++] = r6.l; // uu
-3:          r5 = byteop1p(r1:0, r3:2) (r) ||  w[i3++] = r6.h; // vv
-
-          i0 += m0;
-          i1 += m0;
-          i2 += m1;
-          i3 += m1;
-          p0 = p0 + p2;
-1:        p1 = p1 + p2;
-
-        (r7:4,p5:4) = [sp++];
-        unlink;
-        rts;
-DEFUN_END(uyvytoyv12)
-
-DEFUN(yuyvtoyv12, mL3,  (const uint8_t *src, uint8_t *ydst, uint8_t *udst, uint8_t *vdst,
-                         int width, int height,
-                         int lumStride, int chromStride, int srcStride)):
-        link 0;
-        [--sp] = (r7:4,p5:4);
-
-        p0 = r1;       // Y top even
-
-        i2 = r2; // *u
-        r2 = [fp + ARG_vdst];
-        i3 = r2; // *v
-
-        r1 = [fp + ARG_srcStride];
-        r2 = r0 + r1;
-
-        i0 = r0;  // uyvy_T even
-        i1 = r2;  // uyvy_B odd
-
-        p2 = [fp + ARG_lumStride];
-        p1 = p0 + p2;  // Y bot odd
-
-        p5 = [fp + ARG_width];
-        p4 = [fp + ARG_height];
-        r0 = p5;
-        p4 = p4 >> 1;
-        p5 = p5 >> 2;
-
-        r2 = r0 << 1;
-        r1 = r1 << 1;
-        r1 = r1 - r2;  // srcStride + (srcStride - 2*width)
-        r1 += -8;  // i0,i1 is pre read need to correct
-        m0 = r1;
-
-        r2 = [fp + ARG_chromStride];
-        r0 = r0 >> 1;
-        r2 = r2 - r0;
-        m1 = r2;
-
-        /*   I0,I1 - src input line pointers
-         *   p0,p1 - luma output line pointers
-         *   I2    - dstU
-         *   I3    - dstV
-         */
-
-        lsetup (0f, 1f) lc1 = p4;   // H/2
-0:        r0 = [i0++] || r2 = [i1++];
-          r1 = [i0++] || r3 = [i1++];
-          r4 = bytepack(r0, r1);
-          r5 = bytepack(r2, r3);
-          lsetup (2f, 3f) lc0 = p5; // W/4
-2:          r0 = r0 >> 8(v) || [p0++] = r4;  // yyyy-even
-            r1 = r1 >> 8(v) || [p1++] = r5;  // yyyy-odd
-            r2 = r2 >> 8(v);
-            r3 = r3 >> 8(v);
-            r4 = byteop1p(r1:0, r3:2);
-            r5 = byteop1p(r1:0, r3:2) (r);
-            r6 = pack(r5.l, r4.l);
-            r7 = pack(r5.h, r4.h)         ||  r0 = [i0++] || r2 = [i1++];
-            r6 = bytepack(r6, r7)         ||  r1 = [i0++] || r3 = [i1++];
-            r4 = bytepack(r0, r1)         ||  w[i2++] = r6.l; // uu
-3:          r5 = bytepack(r2, r3)         ||  w[i3++] = r6.h; // vv
-
-          i0 += m0;
-          i1 += m0;
-          i2 += m1;
-          i3 += m1;
-          p0 = p0 + p2;
-1:        p1 = p1 + p2;
-
-        (r7:4,p5:4) = [sp++];
-        unlink;
-        rts;
-DEFUN_END(yuyvtoyv12)
diff --git a/libswscale/bfin/swscale_bfin.c b/libswscale/bfin/swscale_bfin.c
deleted file mode 100644
index 97270b8756..0000000000
--- a/libswscale/bfin/swscale_bfin.c
+++ /dev/null
@@ -1,84 +0,0 @@
-/*
- * Copyright (C) 2007 Marc Hoffman <marc.hoffman@analog.com>
- *
- * Blackfin software video scaler operations
- *
- * This file is part of Libav.
- *
- * Libav is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * Libav is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include <stdint.h>
-
-#include "config.h"
-#include "libavutil/attributes.h"
-#include "libavutil/bfin/attributes.h"
-#include "libswscale/swscale_internal.h"
-
-int ff_bfin_uyvytoyv12(const uint8_t *src, uint8_t *ydst, uint8_t *udst,
-                       uint8_t *vdst, int width, int height,
-                       int lumStride, int chromStride,
-                       int srcStride) attribute_l1_text;
-
-int ff_bfin_yuyvtoyv12(const uint8_t *src, uint8_t *ydst, uint8_t *udst,
-                       uint8_t *vdst, int width, int height,
-                       int lumStride, int chromStride,
-                       int srcStride) attribute_l1_text;
-
-static int uyvytoyv12_unscaled(SwsContext *c, const uint8_t *src[],
-                               int srcStride[], int srcSliceY, int srcSliceH,
-                               uint8_t *dst[], int dstStride[])
-{
-    uint8_t *dsty = dst[0] + dstStride[0] * srcSliceY;
-    uint8_t *dstu = dst[1] + dstStride[1] * srcSliceY / 2;
-    uint8_t *dstv = dst[2] + dstStride[2] * srcSliceY / 2;
-    const uint8_t *ip = src[0] + srcStride[0] * srcSliceY;
-    int w = dstStride[0];
-
-    ff_bfin_uyvytoyv12(ip, dsty, dstu, dstv, w, srcSliceH,
-                       dstStride[0], dstStride[1], srcStride[0]);
-
-    return srcSliceH;
-}
-
-static int yuyvtoyv12_unscaled(SwsContext *c, const uint8_t *src[],
-                               int srcStride[], int srcSliceY, int srcSliceH,
-                               uint8_t *dst[], int dstStride[])
-{
-    uint8_t *dsty = dst[0] + dstStride[0] * srcSliceY;
-    uint8_t *dstu = dst[1] + dstStride[1] * srcSliceY / 2;
-    uint8_t *dstv = dst[2] + dstStride[2] * srcSliceY / 2;
-    const uint8_t *ip = src[0] + srcStride[0] * srcSliceY;
-    int w = dstStride[0];
-
-    ff_bfin_yuyvtoyv12(ip, dsty, dstu, dstv, w, srcSliceH,
-                       dstStride[0], dstStride[1], srcStride[0]);
-
-    return srcSliceH;
-}
-
-av_cold void ff_get_unscaled_swscale_bfin(SwsContext *c)
-{
-    if (c->dstFormat == AV_PIX_FMT_YUV420P && c->srcFormat == AV_PIX_FMT_UYVY422) {
-        av_log(NULL, AV_LOG_VERBOSE,
-               "selecting Blackfin optimized uyvytoyv12_unscaled\n");
-        c->swscale = uyvytoyv12_unscaled;
-    }
-    if (c->dstFormat == AV_PIX_FMT_YUV420P && c->srcFormat == AV_PIX_FMT_YUYV422) {
-        av_log(NULL, AV_LOG_VERBOSE,
-               "selecting Blackfin optimized yuyvtoyv12_unscaled\n");
-        c->swscale = yuyvtoyv12_unscaled;
-    }
-}
diff --git a/libswscale/bfin/yuv2rgb_bfin.c b/libswscale/bfin/yuv2rgb_bfin.c
deleted file mode 100644
index 295dc286e4..0000000000
--- a/libswscale/bfin/yuv2rgb_bfin.c
+++ /dev/null
@@ -1,197 +0,0 @@
-/*
- * Copyright (C) 2007 Marc Hoffman <marc.hoffman@analog.com>
- *
- * Blackfin video color space converter operations
- * convert I420 YV12 to RGB in various formats
- *
- * This file is part of Libav.
- *
- * Libav is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * Libav is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include <stdint.h>
-
-#include "config.h"
-#include "libavutil/attributes.h"
-#include "libavutil/bfin/attributes.h"
-#include "libswscale/swscale_internal.h"
-
-void ff_bfin_yuv2rgb555_line(const uint8_t *Y, const uint8_t *U,
-                             const uint8_t *V, uint8_t *out,
-                             int w, uint32_t *coeffs) attribute_l1_text;
-
-void ff_bfin_yuv2rgb565_line(const uint8_t *Y, const uint8_t *U,
-                             const uint8_t *V, uint8_t *out,
-                             int w, uint32_t *coeffs) attribute_l1_text;
-
-void ff_bfin_yuv2rgb24_line(const uint8_t *Y, const uint8_t *U,
-                            const uint8_t *V, uint8_t *out,
-                            int w, uint32_t *coeffs) attribute_l1_text;
-
-typedef void (*ltransform)(const uint8_t *Y, const uint8_t *U, const uint8_t *V,
-                           uint8_t *out, int w, uint32_t *coeffs);
-
-static void bfin_prepare_coefficients(SwsContext *c, int rgb, int masks)
-{
-    int oy;
-    oy = c->yOffset & 0xffff;
-    oy = oy >> 3;      // keep everything U8.0 for offset calculation
-
-    c->oc = 128 * 0x01010101U;
-    c->oy = oy * 0x01010101U;
-
-    /* copy 64bit vector coeffs down to 32bit vector coeffs */
-    c->cy   = c->yCoeff;
-    c->zero = 0;
-
-    if (rgb) {
-        c->crv = c->vrCoeff;
-        c->cbu = c->ubCoeff;
-        c->cgu = c->ugCoeff;
-        c->cgv = c->vgCoeff;
-    } else {
-        c->crv = c->ubCoeff;
-        c->cbu = c->vrCoeff;
-        c->cgu = c->vgCoeff;
-        c->cgv = c->ugCoeff;
-    }
-
-    if (masks == 555) {
-        c->rmask = 0x001f * 0x00010001U;
-        c->gmask = 0x03e0 * 0x00010001U;
-        c->bmask = 0x7c00 * 0x00010001U;
-    } else if (masks == 565) {
-        c->rmask = 0x001f * 0x00010001U;
-        c->gmask = 0x07e0 * 0x00010001U;
-        c->bmask = 0xf800 * 0x00010001U;
-    }
-}
-
-static int core_yuv420_rgb(SwsContext *c, const uint8_t **in, int *instrides,
-                           int srcSliceY, int srcSliceH, uint8_t **oplanes,
-                           int *outstrides, ltransform lcscf,
-                           int rgb, int masks)
-{
-    const uint8_t *py, *pu, *pv;
-    uint8_t *op;
-    int w  = instrides[0];
-    int h2 = srcSliceH >> 1;
-    int i;
-
-    bfin_prepare_coefficients(c, rgb, masks);
-
-    py = in[0];
-    pu = in[1 + (1 ^ rgb)];
-    pv = in[1 + (0 ^ rgb)];
-
-    op = oplanes[0] + srcSliceY * outstrides[0];
-
-    for (i = 0; i < h2; i++) {
-        lcscf(py, pu, pv, op, w, &c->oy);
-
-        py += instrides[0];
-        op += outstrides[0];
-
-        lcscf(py, pu, pv, op, w, &c->oy);
-
-        py += instrides[0];
-        pu += instrides[1];
-        pv += instrides[2];
-        op += outstrides[0];
-    }
-
-    return srcSliceH;
-}
-
-static int bfin_yuv420_rgb555(SwsContext *c, const uint8_t **in, int *instrides,
-                              int srcSliceY, int srcSliceH,
-                              uint8_t **oplanes, int *outstrides)
-{
-    return core_yuv420_rgb(c, in, instrides, srcSliceY, srcSliceH, oplanes,
-                           outstrides, ff_bfin_yuv2rgb555_line, 1, 555);
-}
-
-static int bfin_yuv420_bgr555(SwsContext *c, const uint8_t **in, int *instrides,
-                              int srcSliceY, int srcSliceH,
-                              uint8_t **oplanes, int *outstrides)
-{
-    return core_yuv420_rgb(c, in, instrides, srcSliceY, srcSliceH, oplanes,
-                           outstrides, ff_bfin_yuv2rgb555_line, 0, 555);
-}
-
-static int bfin_yuv420_rgb24(SwsContext *c, const uint8_t **in, int *instrides,
-                             int srcSliceY, int srcSliceH,
-                             uint8_t **oplanes, int *outstrides)
-{
-    return core_yuv420_rgb(c, in, instrides, srcSliceY, srcSliceH, oplanes,
-                           outstrides, ff_bfin_yuv2rgb24_line, 1, 888);
-}
-
-static int bfin_yuv420_bgr24(SwsContext *c, const uint8_t **in, int *instrides,
-                             int srcSliceY, int srcSliceH,
-                             uint8_t **oplanes, int *outstrides)
-{
-    return core_yuv420_rgb(c, in, instrides, srcSliceY, srcSliceH, oplanes,
-                           outstrides, ff_bfin_yuv2rgb24_line, 0, 888);
-}
-
-static int bfin_yuv420_rgb565(SwsContext *c, const uint8_t **in, int *instrides,
-                              int srcSliceY, int srcSliceH,
-                              uint8_t **oplanes, int *outstrides)
-{
-    return core_yuv420_rgb(c, in, instrides, srcSliceY, srcSliceH, oplanes,
-                           outstrides, ff_bfin_yuv2rgb565_line, 1, 565);
-}
-
-static int bfin_yuv420_bgr565(SwsContext *c, const uint8_t **in, int *instrides,
-                              int srcSliceY, int srcSliceH,
-                              uint8_t **oplanes, int *outstrides)
-{
-    return core_yuv420_rgb(c, in, instrides, srcSliceY, srcSliceH, oplanes,
-                           outstrides, ff_bfin_yuv2rgb565_line, 0, 565);
-}
-
-av_cold SwsFunc ff_yuv2rgb_init_bfin(SwsContext *c)
-{
-    SwsFunc f;
-
-    switch (c->dstFormat) {
-    case AV_PIX_FMT_RGB555:
-        f = bfin_yuv420_rgb555;
-        break;
-    case AV_PIX_FMT_BGR555:
-        f = bfin_yuv420_bgr555;
-        break;
-    case AV_PIX_FMT_RGB565:
-        f = bfin_yuv420_rgb565;
-        break;
-    case AV_PIX_FMT_BGR565:
-        f = bfin_yuv420_bgr565;
-        break;
-    case AV_PIX_FMT_RGB24:
-        f = bfin_yuv420_rgb24;
-        break;
-    case AV_PIX_FMT_BGR24:
-        f = bfin_yuv420_bgr24;
-        break;
-    default:
-        return 0;
-    }
-
-    av_log(c, AV_LOG_INFO, "BlackFin accelerated color space converter %s\n",
-           sws_format_name(c->dstFormat));
-
-    return f;
-}
diff --git a/libswscale/swscale.h b/libswscale/swscale.h
index 8fe27dfece..715f559590 100644
--- a/libswscale/swscale.h
+++ b/libswscale/swscale.h
@@ -92,7 +92,9 @@ const char *swscale_license(void);
 #define SWS_CPU_CAPS_MMX2     0x20000000
 #define SWS_CPU_CAPS_3DNOW    0x40000000
 #define SWS_CPU_CAPS_ALTIVEC  0x10000000
+#if FF_API_ARCH_BFIN
 #define SWS_CPU_CAPS_BFIN     0x01000000
+#endif
 #define SWS_CPU_CAPS_SSE2     0x02000000
 #endif
 
diff --git a/libswscale/swscale_internal.h b/libswscale/swscale_internal.h
index bd57b20d6f..7ecf222e7f 100644
--- a/libswscale/swscale_internal.h
+++ b/libswscale/swscale_internal.h
@@ -436,20 +436,6 @@ typedef struct SwsContext {
     vector signed short  *vYCoeffsBank, *vCCoeffsBank;
 #endif
 
-#if ARCH_BFIN
-    DECLARE_ALIGNED(4, uint32_t, oy);
-    DECLARE_ALIGNED(4, uint32_t, oc);
-    DECLARE_ALIGNED(4, uint32_t, zero);
-    DECLARE_ALIGNED(4, uint32_t, cy);
-    DECLARE_ALIGNED(4, uint32_t, crv);
-    DECLARE_ALIGNED(4, uint32_t, rmask);
-    DECLARE_ALIGNED(4, uint32_t, cbu);
-    DECLARE_ALIGNED(4, uint32_t, bmask);
-    DECLARE_ALIGNED(4, uint32_t, cgu);
-    DECLARE_ALIGNED(4, uint32_t, cgv);
-    DECLARE_ALIGNED(4, uint32_t, gmask);
-#endif
-
     /* function pointers for swscale() */
     yuv2planar1_fn yuv2plane1;
     yuv2planarX_fn yuv2planeX;
@@ -568,7 +554,6 @@ void updateMMXDitherTables(SwsContext *c, int dstY, int lumBufIndex, int chrBufI
 
 SwsFunc ff_yuv2rgb_init_x86(SwsContext *c);
 SwsFunc ff_yuv2rgb_init_ppc(SwsContext *c);
-SwsFunc ff_yuv2rgb_init_bfin(SwsContext *c);
 
 const char *sws_format_name(enum AVPixelFormat format);
 
@@ -733,7 +718,6 @@ extern const AVClass sws_context_class;
  * source and destination formats, bit depths, flags, etc.
  */
 void ff_get_unscaled_swscale(SwsContext *c);
-void ff_get_unscaled_swscale_bfin(SwsContext *c);
 void ff_get_unscaled_swscale_ppc(SwsContext *c);
 
 /**
diff --git a/libswscale/swscale_unscaled.c b/libswscale/swscale_unscaled.c
index da1bde13b0..02850eac17 100644
--- a/libswscale/swscale_unscaled.c
+++ b/libswscale/swscale_unscaled.c
@@ -1117,8 +1117,6 @@ void ff_get_unscaled_swscale(SwsContext *c)
             c->swscale = planarCopyWrapper;
     }
 
-    if (ARCH_BFIN)
-        ff_get_unscaled_swscale_bfin(c);
     if (ARCH_PPC)
         ff_get_unscaled_swscale_ppc(c);
 }
diff --git a/libswscale/version.h b/libswscale/version.h
index 0f32c7ab03..d402c68ae1 100644
--- a/libswscale/version.h
+++ b/libswscale/version.h
@@ -52,5 +52,8 @@
 #ifndef FF_API_SWS_CPU_CAPS
 #define FF_API_SWS_CPU_CAPS    (LIBSWSCALE_VERSION_MAJOR < 3)
 #endif
+#ifndef FF_API_ARCH_BFIN
+#define FF_API_ARCH_BFIN       (LIBSWSCALE_VERSION_MAJOR < 3)
+#endif
 
 #endif /* SWSCALE_VERSION_H */
diff --git a/libswscale/yuv2rgb.c b/libswscale/yuv2rgb.c
index c8497dc238..480fbe3999 100644
--- a/libswscale/yuv2rgb.c
+++ b/libswscale/yuv2rgb.c
@@ -560,8 +560,6 @@ SwsFunc ff_yuv2rgb_get_func_ptr(SwsContext *c)
 {
     SwsFunc t = NULL;
 
-    if (ARCH_BFIN)
-        t = ff_yuv2rgb_init_bfin(c);
     if (ARCH_PPC)
         t = ff_yuv2rgb_init_ppc(c);
     if (ARCH_X86)