diff options
Diffstat (limited to 'libavcodec/vp3dsp.c')
| -rw-r--r-- | libavcodec/vp3dsp.c | 92 |
1 files changed, 35 insertions, 57 deletions
diff --git a/libavcodec/vp3dsp.c b/libavcodec/vp3dsp.c index d1a7db957d..94de0e5b96 100644 --- a/libavcodec/vp3dsp.c +++ b/libavcodec/vp3dsp.c @@ -54,11 +54,12 @@ static av_always_inline void idct(uint8_t *dst, int stride, int16_t *input, int /* Inverse DCT on the rows now */ for (i = 0; i < 8; i++) { /* Check for non-zero values */ - if ( ip[0] | ip[1] | ip[2] | ip[3] | ip[4] | ip[5] | ip[6] | ip[7] ) { - A = M(xC1S7, ip[1]) + M(xC7S1, ip[7]); - B = M(xC7S1, ip[1]) - M(xC1S7, ip[7]); - C = M(xC3S5, ip[3]) + M(xC5S3, ip[5]); - D = M(xC3S5, ip[5]) - M(xC5S3, ip[3]); + if ( ip[0 * 8] | ip[1 * 8] | ip[2 * 8] | ip[3 * 8] | + ip[4 * 8] | ip[5 * 8] | ip[6 * 8] | ip[7 * 8] ) { + A = M(xC1S7, ip[1 * 8]) + M(xC7S1, ip[7 * 8]); + B = M(xC7S1, ip[1 * 8]) - M(xC1S7, ip[7 * 8]); + C = M(xC3S5, ip[3 * 8]) + M(xC5S3, ip[5 * 8]); + D = M(xC3S5, ip[5 * 8]) - M(xC5S3, ip[3 * 8]); Ad = M(xC4S4, (A - C)); Bd = M(xC4S4, (B - D)); @@ -66,11 +67,11 @@ static av_always_inline void idct(uint8_t *dst, int stride, int16_t *input, int Cd = A + C; Dd = B + D; - E = M(xC4S4, (ip[0] + ip[4])); - F = M(xC4S4, (ip[0] - ip[4])); + E = M(xC4S4, (ip[0 * 8] + ip[4 * 8])); + F = M(xC4S4, (ip[0 * 8] - ip[4 * 8])); - G = M(xC2S6, ip[2]) + M(xC6S2, ip[6]); - H = M(xC6S2, ip[2]) - M(xC2S6, ip[6]); + G = M(xC2S6, ip[2 * 8]) + M(xC6S2, ip[6 * 8]); + H = M(xC6S2, ip[2 * 8]) - M(xC2S6, ip[6 * 8]); Ed = E - G; Gd = E + G; @@ -82,33 +83,33 @@ static av_always_inline void idct(uint8_t *dst, int stride, int16_t *input, int Hd = Bd + H; /* Final sequence of operations over-write original inputs. */ - ip[0] = Gd + Cd ; - ip[7] = Gd - Cd ; + ip[0 * 8] = Gd + Cd ; + ip[7 * 8] = Gd - Cd ; - ip[1] = Add + Hd; - ip[2] = Add - Hd; + ip[1 * 8] = Add + Hd; + ip[2 * 8] = Add - Hd; - ip[3] = Ed + Dd ; - ip[4] = Ed - Dd ; + ip[3 * 8] = Ed + Dd ; + ip[4 * 8] = Ed - Dd ; - ip[5] = Fd + Bdd; - ip[6] = Fd - Bdd; + ip[5 * 8] = Fd + Bdd; + ip[6 * 8] = Fd - Bdd; } - ip += 8; /* next row */ + ip += 1; /* next row */ } ip = input; for ( i = 0; i < 8; i++) { /* Check for non-zero values (bitwise or faster than ||) */ - if ( ip[1 * 8] | ip[2 * 8] | ip[3 * 8] | - ip[4 * 8] | ip[5 * 8] | ip[6 * 8] | ip[7 * 8] ) { + if ( ip[1] | ip[2] | ip[3] | + ip[4] | ip[5] | ip[6] | ip[7] ) { - A = M(xC1S7, ip[1*8]) + M(xC7S1, ip[7*8]); - B = M(xC7S1, ip[1*8]) - M(xC1S7, ip[7*8]); - C = M(xC3S5, ip[3*8]) + M(xC5S3, ip[5*8]); - D = M(xC3S5, ip[5*8]) - M(xC5S3, ip[3*8]); + A = M(xC1S7, ip[1]) + M(xC7S1, ip[7]); + B = M(xC7S1, ip[1]) - M(xC1S7, ip[7]); + C = M(xC3S5, ip[3]) + M(xC5S3, ip[5]); + D = M(xC3S5, ip[5]) - M(xC5S3, ip[3]); Ad = M(xC4S4, (A - C)); Bd = M(xC4S4, (B - D)); @@ -116,16 +117,16 @@ static av_always_inline void idct(uint8_t *dst, int stride, int16_t *input, int Cd = A + C; Dd = B + D; - E = M(xC4S4, (ip[0*8] + ip[4*8])) + 8; - F = M(xC4S4, (ip[0*8] - ip[4*8])) + 8; + E = M(xC4S4, (ip[0] + ip[4])) + 8; + F = M(xC4S4, (ip[0] - ip[4])) + 8; if(type==1){ //HACK E += 16*128; F += 16*128; } - G = M(xC2S6, ip[2*8]) + M(xC6S2, ip[6*8]); - H = M(xC6S2, ip[2*8]) - M(xC2S6, ip[6*8]); + G = M(xC2S6, ip[2]) + M(xC6S2, ip[6]); + H = M(xC6S2, ip[2]) - M(xC2S6, ip[6]); Ed = E - G; Gd = E + G; @@ -137,19 +138,7 @@ static av_always_inline void idct(uint8_t *dst, int stride, int16_t *input, int Hd = Bd + H; /* Final sequence of operations over-write original inputs. */ - if(type==0){ - ip[0*8] = (Gd + Cd ) >> 4; - ip[7*8] = (Gd - Cd ) >> 4; - - ip[1*8] = (Add + Hd ) >> 4; - ip[2*8] = (Add - Hd ) >> 4; - - ip[3*8] = (Ed + Dd ) >> 4; - ip[4*8] = (Ed - Dd ) >> 4; - - ip[5*8] = (Fd + Bdd ) >> 4; - ip[6*8] = (Fd - Bdd ) >> 4; - }else if(type==1){ + if (type == 1) { dst[0*stride] = av_clip_uint8((Gd + Cd ) >> 4); dst[7*stride] = av_clip_uint8((Gd - Cd ) >> 4); @@ -176,16 +165,7 @@ static av_always_inline void idct(uint8_t *dst, int stride, int16_t *input, int } } else { - if(type==0){ - ip[0*8] = - ip[1*8] = - ip[2*8] = - ip[3*8] = - ip[4*8] = - ip[5*8] = - ip[6*8] = - ip[7*8] = ((xC4S4 * ip[0*8] + (IdctAdjustBeforeShift<<16))>>20); - }else if(type==1){ + if (type == 1) { dst[0*stride]= dst[1*stride]= dst[2*stride]= @@ -193,10 +173,10 @@ static av_always_inline void idct(uint8_t *dst, int stride, int16_t *input, int dst[4*stride]= dst[5*stride]= dst[6*stride]= - dst[7*stride]= av_clip_uint8(128 + ((xC4S4 * ip[0*8] + (IdctAdjustBeforeShift<<16))>>20)); + dst[7*stride]= av_clip_uint8(128 + ((xC4S4 * ip[0] + (IdctAdjustBeforeShift<<16))>>20)); }else{ - if(ip[0*8]){ - int v= ((xC4S4 * ip[0*8] + (IdctAdjustBeforeShift<<16))>>20); + if(ip[0]){ + int v= ((xC4S4 * ip[0] + (IdctAdjustBeforeShift<<16))>>20); dst[0*stride] = av_clip_uint8(dst[0*stride] + v); dst[1*stride] = av_clip_uint8(dst[1*stride] + v); dst[2*stride] = av_clip_uint8(dst[2*stride] + v); @@ -209,7 +189,7 @@ static av_always_inline void idct(uint8_t *dst, int stride, int16_t *input, int } } - ip++; /* next column */ + ip += 8; /* next column */ dst++; } } @@ -307,8 +287,6 @@ av_cold void ff_vp3dsp_init(VP3DSPContext *c, int flags) c->v_loop_filter = vp3_v_loop_filter_c; c->h_loop_filter = vp3_h_loop_filter_c; - c->idct_perm = FF_NO_IDCT_PERM; - if (ARCH_ARM) ff_vp3dsp_init_arm(c, flags); if (ARCH_BFIN) |