diff options
Diffstat (limited to 'src/libffmpeg/libavcodec/dsputil.c')
| -rw-r--r-- | src/libffmpeg/libavcodec/dsputil.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/src/libffmpeg/libavcodec/dsputil.c b/src/libffmpeg/libavcodec/dsputil.c index 810fb9b0f..270424706 100644 --- a/src/libffmpeg/libavcodec/dsputil.c +++ b/src/libffmpeg/libavcodec/dsputil.c @@ -2526,6 +2526,24 @@ static void diff_bytes_c(uint8_t *dst, uint8_t *src1, uint8_t *src2, int w){ dst[i+0] = src1[i+0]-src2[i+0]; } +static void sub_hfyu_median_prediction_c(uint8_t *dst, uint8_t *src1, uint8_t *src2, int w, int *left, int *left_top){ + int i; + uint8_t l, lt; + + l= *left; + lt= *left_top; + + for(i=0; i<w; i++){ + const int pred= mid_pred(l, src1[i], (l + src1[i] - lt)&0xFF); + lt= src1[i]; + l= src2[i]; + dst[i]= l - pred; + } + + *left= l; + *left_top= lt; +} + #define BUTTERFLY2(o1,o2,i1,i2) \ o1= (i1)+(i2);\ o2= (i1)-(i2); @@ -2860,10 +2878,12 @@ void dsputil_init(DSPContext* c, AVCodecContext *avctx) if(avctx->idct_algo==FF_IDCT_INT){ c->idct_put= ff_jref_idct_put; c->idct_add= ff_jref_idct_add; + c->idct = j_rev_dct; c->idct_permutation_type= FF_LIBMPEG2_IDCT_PERM; }else{ //accurate/default c->idct_put= simple_idct_put; c->idct_add= simple_idct_add; + c->idct = simple_idct; c->idct_permutation_type= FF_NO_IDCT_PERM; } @@ -3005,6 +3025,7 @@ void dsputil_init(DSPContext* c, AVCodecContext *avctx) c->add_bytes= add_bytes_c; c->diff_bytes= diff_bytes_c; + c->sub_hfyu_median_prediction= sub_hfyu_median_prediction_c; c->bswap_buf= bswap_buf; #ifdef HAVE_MMX |