diff options
Diffstat (limited to 'libavcodec/vc1dsp.c')
| -rw-r--r-- | libavcodec/vc1dsp.c | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/libavcodec/vc1dsp.c b/libavcodec/vc1dsp.c index 5773ab1e3c..5e79736a50 100644 --- a/libavcodec/vc1dsp.c +++ b/libavcodec/vc1dsp.c @@ -178,6 +178,26 @@ static void vc1_h_loop_filter16_c(uint8_t *src, int stride, int pq) /** Do inverse transform on 8x8 block */ +static void vc1_inv_trans_8x8_dc_c(uint8_t *dest, int linesize, DCTELEM *block) +{ + int i; + int dc = block[0]; + const uint8_t *cm = ff_cropTbl + MAX_NEG_CROP; + dc = (3 * dc + 1) >> 1; + dc = (3 * dc + 16) >> 5; + for(i = 0; i < 8; i++){ + dest[0] = cm[dest[0]+dc]; + dest[1] = cm[dest[1]+dc]; + dest[2] = cm[dest[2]+dc]; + dest[3] = cm[dest[3]+dc]; + dest[4] = cm[dest[4]+dc]; + dest[5] = cm[dest[5]+dc]; + dest[6] = cm[dest[6]+dc]; + dest[7] = cm[dest[7]+dc]; + dest += linesize; + } +} + static void vc1_inv_trans_8x8_c(DCTELEM block[64]) { int i; @@ -249,6 +269,26 @@ static void vc1_inv_trans_8x8_c(DCTELEM block[64]) /** Do inverse transform on 8x4 part of block */ +static void vc1_inv_trans_8x4_dc_c(uint8_t *dest, int linesize, DCTELEM *block) +{ + int i; + int dc = block[0]; + const uint8_t *cm = ff_cropTbl + MAX_NEG_CROP; + dc = ( 3 * dc + 1) >> 1; + dc = (17 * dc + 64) >> 7; + for(i = 0; i < 4; i++){ + dest[0] = cm[dest[0]+dc]; + dest[1] = cm[dest[1]+dc]; + dest[2] = cm[dest[2]+dc]; + dest[3] = cm[dest[3]+dc]; + dest[4] = cm[dest[4]+dc]; + dest[5] = cm[dest[5]+dc]; + dest[6] = cm[dest[6]+dc]; + dest[7] = cm[dest[7]+dc]; + dest += linesize; + } +} + static void vc1_inv_trans_8x4_c(uint8_t *dest, int linesize, DCTELEM *block) { int i; @@ -306,6 +346,22 @@ static void vc1_inv_trans_8x4_c(uint8_t *dest, int linesize, DCTELEM *block) /** Do inverse transform on 4x8 parts of block */ +static void vc1_inv_trans_4x8_dc_c(uint8_t *dest, int linesize, DCTELEM *block) +{ + int i; + int dc = block[0]; + const uint8_t *cm = ff_cropTbl + MAX_NEG_CROP; + dc = (17 * dc + 4) >> 3; + dc = (12 * dc + 64) >> 7; + for(i = 0; i < 8; i++){ + dest[0] = cm[dest[0]+dc]; + dest[1] = cm[dest[1]+dc]; + dest[2] = cm[dest[2]+dc]; + dest[3] = cm[dest[3]+dc]; + dest += linesize; + } +} + static void vc1_inv_trans_4x8_c(uint8_t *dest, int linesize, DCTELEM *block) { int i; @@ -363,6 +419,22 @@ static void vc1_inv_trans_4x8_c(uint8_t *dest, int linesize, DCTELEM *block) /** Do inverse transform on 4x4 part of block */ +static void vc1_inv_trans_4x4_dc_c(uint8_t *dest, int linesize, DCTELEM *block) +{ + int i; + int dc = block[0]; + const uint8_t *cm = ff_cropTbl + MAX_NEG_CROP; + dc = (17 * dc + 4) >> 3; + dc = (17 * dc + 64) >> 7; + for(i = 0; i < 4; i++){ + dest[0] = cm[dest[0]+dc]; + dest[1] = cm[dest[1]+dc]; + dest[2] = cm[dest[2]+dc]; + dest[3] = cm[dest[3]+dc]; + dest += linesize; + } +} + static void vc1_inv_trans_4x4_c(uint8_t *dest, int linesize, DCTELEM *block) { int i; @@ -545,6 +617,10 @@ void ff_vc1dsp_init(DSPContext* dsp, AVCodecContext *avctx) { dsp->vc1_inv_trans_4x8 = vc1_inv_trans_4x8_c; dsp->vc1_inv_trans_8x4 = vc1_inv_trans_8x4_c; dsp->vc1_inv_trans_4x4 = vc1_inv_trans_4x4_c; + dsp->vc1_inv_trans_8x8_dc = vc1_inv_trans_8x8_dc_c; + dsp->vc1_inv_trans_4x8_dc = vc1_inv_trans_4x8_dc_c; + dsp->vc1_inv_trans_8x4_dc = vc1_inv_trans_8x4_dc_c; + dsp->vc1_inv_trans_4x4_dc = vc1_inv_trans_4x4_dc_c; dsp->vc1_h_overlap = vc1_h_overlap_c; dsp->vc1_v_overlap = vc1_v_overlap_c; dsp->vc1_v_loop_filter4 = vc1_v_loop_filter4_c; |