diff options
author | Ronald S. Bultje <rsbultje@gmail.com> | 2013-01-21 10:12:35 +0400 |
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committer | Ronald S. Bultje <rsbultje@gmail.com> | 2013-01-21 10:12:35 +0400 |
commit | e6bc38fd49c94726b45d5d5cc2b756ad8ec49ee0 (patch) | |
tree | 372ff5d7a56c1ea732d01ee4051293bf0309162b /libavcodec/dsputil.c | |
parent | 8a4f26206d7914eaf2903954ce97cb7686933382 (diff) |
wmv2: move IDCT to its own DSP context.
This allows us to remove FF_IDCT_WMV2, which serves no practical purpose
other than to be able to select the WMV2 IDCT for MPEG (or vice versa)
and get corrupt output.
Fate tests for all wmv2-related tests change, because (for some obscure
reason) they forced use of the MPEG IDCT. You would get the same changes
previously by not using -idct simple in the fate test (or replacing it
with -idct auto).
Diffstat (limited to 'libavcodec/dsputil.c')
-rw-r--r-- | libavcodec/dsputil.c | 89 |
1 files changed, 0 insertions, 89 deletions
diff --git a/libavcodec/dsputil.c b/libavcodec/dsputil.c index d0544a4c7a..251fb0c2d9 100644 --- a/libavcodec/dsputil.c +++ b/libavcodec/dsputil.c @@ -2482,90 +2482,6 @@ static void vector_clip_int32_c(int32_t *dst, const int32_t *src, int32_t min, } while (len > 0); } -#define W0 2048 -#define W1 2841 /* 2048*sqrt (2)*cos (1*pi/16) */ -#define W2 2676 /* 2048*sqrt (2)*cos (2*pi/16) */ -#define W3 2408 /* 2048*sqrt (2)*cos (3*pi/16) */ -#define W4 2048 /* 2048*sqrt (2)*cos (4*pi/16) */ -#define W5 1609 /* 2048*sqrt (2)*cos (5*pi/16) */ -#define W6 1108 /* 2048*sqrt (2)*cos (6*pi/16) */ -#define W7 565 /* 2048*sqrt (2)*cos (7*pi/16) */ - -static void wmv2_idct_row(short * b) -{ - int s1,s2; - int a0,a1,a2,a3,a4,a5,a6,a7; - /*step 1*/ - a1 = W1*b[1]+W7*b[7]; - a7 = W7*b[1]-W1*b[7]; - a5 = W5*b[5]+W3*b[3]; - a3 = W3*b[5]-W5*b[3]; - a2 = W2*b[2]+W6*b[6]; - a6 = W6*b[2]-W2*b[6]; - a0 = W0*b[0]+W0*b[4]; - a4 = W0*b[0]-W0*b[4]; - /*step 2*/ - s1 = (181*(a1-a5+a7-a3)+128)>>8;//1,3,5,7, - s2 = (181*(a1-a5-a7+a3)+128)>>8; - /*step 3*/ - b[0] = (a0+a2+a1+a5 + (1<<7))>>8; - b[1] = (a4+a6 +s1 + (1<<7))>>8; - b[2] = (a4-a6 +s2 + (1<<7))>>8; - b[3] = (a0-a2+a7+a3 + (1<<7))>>8; - b[4] = (a0-a2-a7-a3 + (1<<7))>>8; - b[5] = (a4-a6 -s2 + (1<<7))>>8; - b[6] = (a4+a6 -s1 + (1<<7))>>8; - b[7] = (a0+a2-a1-a5 + (1<<7))>>8; -} -static void wmv2_idct_col(short * b) -{ - int s1,s2; - int a0,a1,a2,a3,a4,a5,a6,a7; - /*step 1, with extended precision*/ - a1 = (W1*b[8*1]+W7*b[8*7] + 4)>>3; - a7 = (W7*b[8*1]-W1*b[8*7] + 4)>>3; - a5 = (W5*b[8*5]+W3*b[8*3] + 4)>>3; - a3 = (W3*b[8*5]-W5*b[8*3] + 4)>>3; - a2 = (W2*b[8*2]+W6*b[8*6] + 4)>>3; - a6 = (W6*b[8*2]-W2*b[8*6] + 4)>>3; - a0 = (W0*b[8*0]+W0*b[8*4] )>>3; - a4 = (W0*b[8*0]-W0*b[8*4] )>>3; - /*step 2*/ - s1 = (181*(a1-a5+a7-a3)+128)>>8; - s2 = (181*(a1-a5-a7+a3)+128)>>8; - /*step 3*/ - b[8*0] = (a0+a2+a1+a5 + (1<<13))>>14; - b[8*1] = (a4+a6 +s1 + (1<<13))>>14; - b[8*2] = (a4-a6 +s2 + (1<<13))>>14; - b[8*3] = (a0-a2+a7+a3 + (1<<13))>>14; - - b[8*4] = (a0-a2-a7-a3 + (1<<13))>>14; - b[8*5] = (a4-a6 -s2 + (1<<13))>>14; - b[8*6] = (a4+a6 -s1 + (1<<13))>>14; - b[8*7] = (a0+a2-a1-a5 + (1<<13))>>14; -} -void ff_wmv2_idct_c(short * block){ - int i; - - for(i=0;i<64;i+=8){ - wmv2_idct_row(block+i); - } - for(i=0;i<8;i++){ - wmv2_idct_col(block+i); - } -} -/* XXX: those functions should be suppressed ASAP when all IDCTs are - converted */ -static void ff_wmv2_idct_put_c(uint8_t *dest, int line_size, DCTELEM *block) -{ - ff_wmv2_idct_c(block); - put_pixels_clamped_c(block, dest, line_size); -} -static void ff_wmv2_idct_add_c(uint8_t *dest, int line_size, DCTELEM *block) -{ - ff_wmv2_idct_c(block); - add_pixels_clamped_c(block, dest, line_size); -} static void ff_jref_idct_put(uint8_t *dest, int line_size, DCTELEM *block) { ff_j_rev_dct (block); @@ -2650,11 +2566,6 @@ av_cold void ff_dsputil_init(DSPContext* c, AVCodecContext *avctx) c->idct_add= ff_jref_idct_add; c->idct = ff_j_rev_dct; c->idct_permutation_type= FF_LIBMPEG2_IDCT_PERM; - }else if(avctx->idct_algo==FF_IDCT_WMV2){ - c->idct_put= ff_wmv2_idct_put_c; - c->idct_add= ff_wmv2_idct_add_c; - c->idct = ff_wmv2_idct_c; - c->idct_permutation_type= FF_NO_IDCT_PERM; }else if(avctx->idct_algo==FF_IDCT_FAAN){ c->idct_put= ff_faanidct_put; c->idct_add= ff_faanidct_add; |