diff options
author | zhaoxiu.zeng <zhaoxiu.zeng@gmail.com> | 2015-02-17 00:38:53 +0800 |
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committer | Michael Niedermayer <michaelni@gmx.at> | 2015-02-16 19:44:46 +0100 |
commit | bf9906808992d675ddcbd45cddeff7756fa3dd26 (patch) | |
tree | c913bbd137d30465f9c79d17850c282a22d129b8 /libavcodec | |
parent | 88868d81a5d7c4b1ee88f204524c1076e337147e (diff) | |
download | ffmpeg-bf9906808992d675ddcbd45cddeff7756fa3dd26.tar.gz |
avcodec/vc1_mc: factor out helper functions for scaling blocks
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavcodec')
-rw-r--r-- | libavcodec/vc1_mc.c | 257 |
1 files changed, 113 insertions, 144 deletions
diff --git a/libavcodec/vc1_mc.c b/libavcodec/vc1_mc.c index 64f8854a9f..683b620b2d 100644 --- a/libavcodec/vc1_mc.c +++ b/libavcodec/vc1_mc.c @@ -32,6 +32,77 @@ #include "mpegvideo.h" #include "vc1.h" +static av_always_inline void vc1_scale_luma(uint8_t *srcY, + int k, int linesize) +{ + int i, j; + for (j = 0; j < k; j++) { + for (i = 0; i < k; i++) + srcY[i] = ((srcY[i] - 128) >> 1) + 128; + srcY += linesize; + } +} + +static av_always_inline void vc1_scale_chroma(uint8_t *srcU, uint8_t *srcV, + int k, int uvlinesize) +{ + int i, j; + for (j = 0; j < k; j++) { + for (i = 0; i < k; i++) { + srcU[i] = ((srcU[i] - 128) >> 1) + 128; + srcV[i] = ((srcV[i] - 128) >> 1) + 128; + } + srcU += uvlinesize; + srcV += uvlinesize; + } +} + +static av_always_inline void vc1_lut_scale_luma(uint8_t *srcY, + uint8_t *lut1, uint8_t *lut2, + int k, int linesize) +{ + int i, j; + + for (j = 0; j < k; j += 2) { + for (i = 0; i < k; i++) + srcY[i] = lut1[srcY[i]]; + srcY += linesize; + + if (j + 1 == k) + break; + + for (i = 0; i < k; i++) + srcY[i] = lut2[srcY[i]]; + srcY += linesize; + } +} + +static av_always_inline void vc1_lut_scale_chroma(uint8_t *srcU, uint8_t *srcV, + uint8_t *lut1, uint8_t *lut2, + int k, int uvlinesize) +{ + int i, j; + + for (j = 0; j < k; j += 2) { + for (i = 0; i < k; i++) { + srcU[i] = lut1[srcU[i]]; + srcV[i] = lut1[srcV[i]]; + } + srcU += uvlinesize; + srcV += uvlinesize; + + if (j + 1 == k) + break; + + for (i = 0; i < k; i++) { + srcU[i] = lut2[srcU[i]]; + srcV[i] = lut2[srcV[i]]; + } + srcU += uvlinesize; + srcV += uvlinesize; + } +} + /** Do motion compensation over 1 macroblock * Mostly adapted hpel_motion and qpel_motion from mpegvideo.c */ @@ -147,11 +218,12 @@ void ff_vc1_mc_1mv(VC1Context *v, int dir) || (unsigned)(src_y - 1) > v_edge_pos - (my&3) - 16 - 3) { uint8_t *ubuf = s->edge_emu_buffer + 19 * s->linesize; uint8_t *vbuf = ubuf + 9 * s->uvlinesize; + const int k = 17 + s->mspel * 2; srcY -= s->mspel * (1 + s->linesize); s->vdsp.emulated_edge_mc(s->edge_emu_buffer, srcY, s->linesize, s->linesize, - 17 + s->mspel * 2, 17 + s->mspel * 2, + k, k, src_x - s->mspel, src_y - s->mspel, s->h_edge_pos, v_edge_pos); srcY = s->edge_emu_buffer; @@ -169,56 +241,26 @@ void ff_vc1_mc_1mv(VC1Context *v, int dir) srcV = vbuf; /* if we deal with range reduction we need to scale source blocks */ if (v->rangeredfrm) { - int i, j; - uint8_t *src, *src2; - - src = srcY; - for (j = 0; j < 17 + s->mspel * 2; j++) { - for (i = 0; i < 17 + s->mspel * 2; i++) - src[i] = ((src[i] - 128) >> 1) + 128; - src += s->linesize; - } - src = srcU; - src2 = srcV; - for (j = 0; j < 9; j++) { - for (i = 0; i < 9; i++) { - src[i] = ((src[i] - 128) >> 1) + 128; - src2[i] = ((src2[i] - 128) >> 1) + 128; - } - src += s->uvlinesize; - src2 += s->uvlinesize; - } + vc1_scale_luma(srcY, k, s->linesize); + vc1_scale_chroma(srcU, srcV, 9, s->uvlinesize); } /* if we deal with intensity compensation we need to scale source blocks */ if (use_ic) { - int i, j; - uint8_t *src, *src2; - - src = srcY; - for (j = 0; j < 17 + s->mspel * 2; j++) { - int f = v->field_mode ? v->ref_field_type[dir] : ((j + src_y - s->mspel) & 1) ; - for (i = 0; i < 17 + s->mspel * 2; i++) - src[i] = luty[f][src[i]]; - src += s->linesize; - } - src = srcU; - src2 = srcV; - for (j = 0; j < 9; j++) { - int f = v->field_mode ? v->ref_field_type[dir] : ((j + uvsrc_y) & 1); - for (i = 0; i < 9; i++) { - src[i] = lutuv[f][src[i]]; - src2[i] = lutuv[f][src2[i]]; - } - src += s->uvlinesize; - src2 += s->uvlinesize; - } + vc1_lut_scale_luma(srcY, + luty[v->field_mode ? v->ref_field_type[dir] : ((0 + src_y - s->mspel) & 1)], + luty[v->field_mode ? v->ref_field_type[dir] : ((1 + src_y - s->mspel) & 1)], + k, s->linesize); + vc1_lut_scale_chroma(srcU, srcV, + lutuv[v->field_mode ? v->ref_field_type[dir] : ((0 + uvsrc_y) & 1)], + lutuv[v->field_mode ? v->ref_field_type[dir] : ((1 + uvsrc_y) & 1)], + 9, s->uvlinesize); } srcY += s->mspel * (1 + s->linesize); } if (s->mspel) { dxy = ((my & 3) << 2) | (mx & 3); - v->vc1dsp.put_vc1_mspel_pixels_tab[0][dxy](s->dest[0] , srcY , s->linesize, v->rnd); + v->vc1dsp.put_vc1_mspel_pixels_tab[0][dxy](s->dest[0], srcY, s->linesize, v->rnd); } else { // hpel mc - always used for luma dxy = (my & 2) | ((mx & 2) >> 1); if (!v->rnd) @@ -382,38 +424,26 @@ void ff_vc1_mc_4mv_luma(VC1Context *v, int n, int dir, int avg) || s->h_edge_pos < 13 || v_edge_pos < 23 || (unsigned)(src_x - s->mspel) > s->h_edge_pos - (mx & 3) - 8 - s->mspel * 2 || (unsigned)(src_y - (s->mspel << fieldmv)) > v_edge_pos - (my & 3) - ((8 + s->mspel * 2) << fieldmv)) { + const int k = 9 + s->mspel * 2; + srcY -= s->mspel * (1 + (s->linesize << fieldmv)); /* check emulate edge stride and offset */ s->vdsp.emulated_edge_mc(s->edge_emu_buffer, srcY, s->linesize, s->linesize, - 9 + s->mspel * 2, (9 + s->mspel * 2) << fieldmv, + k, k << fieldmv, src_x - s->mspel, src_y - (s->mspel << fieldmv), s->h_edge_pos, v_edge_pos); srcY = s->edge_emu_buffer; /* if we deal with range reduction we need to scale source blocks */ if (v->rangeredfrm) { - int i, j; - uint8_t *src; - - src = srcY; - for (j = 0; j < 9 + s->mspel * 2; j++) { - for (i = 0; i < 9 + s->mspel * 2; i++) - src[i] = ((src[i] - 128) >> 1) + 128; - src += s->linesize << fieldmv; - } + vc1_scale_luma(srcY, k, s->linesize << fieldmv); } /* if we deal with intensity compensation we need to scale source blocks */ if (use_ic) { - int i, j; - uint8_t *src; - - src = srcY; - for (j = 0; j < 9 + s->mspel * 2; j++) { - int f = v->field_mode ? v->ref_field_type[dir] : (((j<<fieldmv)+src_y - (s->mspel << fieldmv)) & 1); - for (i = 0; i < 9 + s->mspel * 2; i++) - src[i] = luty[f][src[i]]; - src += s->linesize << fieldmv; - } + vc1_lut_scale_luma(srcY, + luty[v->field_mode ? v->ref_field_type[dir] : (((0<<fieldmv)+src_y - (s->mspel << fieldmv)) & 1)], + luty[v->field_mode ? v->ref_field_type[dir] : (((1<<fieldmv)+src_y - (s->mspel << fieldmv)) & 1)], + k, s->linesize << fieldmv); } srcY += s->mspel * (1 + (s->linesize << fieldmv)); } @@ -613,36 +643,14 @@ void ff_vc1_mc_4mv_chroma(VC1Context *v, int dir) /* if we deal with range reduction we need to scale source blocks */ if (v->rangeredfrm) { - int i, j; - uint8_t *src, *src2; - - src = srcU; - src2 = srcV; - for (j = 0; j < 9; j++) { - for (i = 0; i < 9; i++) { - src[i] = ((src[i] - 128) >> 1) + 128; - src2[i] = ((src2[i] - 128) >> 1) + 128; - } - src += s->uvlinesize; - src2 += s->uvlinesize; - } + vc1_scale_chroma(srcU, srcV, 9, s->uvlinesize); } /* if we deal with intensity compensation we need to scale source blocks */ if (use_ic) { - int i, j; - uint8_t *src, *src2; - - src = srcU; - src2 = srcV; - for (j = 0; j < 9; j++) { - int f = v->field_mode ? chroma_ref_type : ((j + uvsrc_y) & 1); - for (i = 0; i < 9; i++) { - src[i] = lutuv[f][src[i]]; - src2[i] = lutuv[f][src2[i]]; - } - src += s->uvlinesize; - src2 += s->uvlinesize; - } + vc1_lut_scale_chroma(srcU, srcV, + lutuv[v->field_mode ? chroma_ref_type : ((0 + uvsrc_y) & 1)], + lutuv[v->field_mode ? chroma_ref_type : ((1 + uvsrc_y) & 1)], + 9, s->uvlinesize); } } @@ -736,20 +744,10 @@ void ff_vc1_mc_4mv_chroma4(VC1Context *v, int dir, int dir2, int avg) /* if we deal with intensity compensation we need to scale source blocks */ if (use_ic) { - int i, j; - uint8_t *src, *src2; - - src = srcU; - src2 = srcV; - for (j = 0; j < 5; j++) { - int f = (uvsrc_y + (j << fieldmv)) & 1; - for (i = 0; i < 5; i++) { - src[i] = lutuv[f][src[i]]; - src2[i] = lutuv[f][src2[i]]; - } - src += s->uvlinesize << fieldmv; - src2 += s->uvlinesize << fieldmv; - } + vc1_lut_scale_chroma(srcU, srcV, + lutuv[(uvsrc_y + (0 << fieldmv)) & 1], + lutuv[(uvsrc_y + (1 << fieldmv)) & 1], + 5, s->uvlinesize << fieldmv); } } if (avg) { @@ -841,11 +839,12 @@ void ff_vc1_interp_mc(VC1Context *v) || (unsigned)(src_y - 1) > v_edge_pos - (my & 3) - 16 - 3) { uint8_t *ubuf = s->edge_emu_buffer + 19 * s->linesize; uint8_t *vbuf = ubuf + 9 * s->uvlinesize; + const int k = 17 + s->mspel * 2; srcY -= s->mspel * (1 + s->linesize); s->vdsp.emulated_edge_mc(s->edge_emu_buffer, srcY, s->linesize, s->linesize, - 17 + s->mspel * 2, 17 + s->mspel * 2, + k, k, src_x - s->mspel, src_y - s->mspel, s->h_edge_pos, v_edge_pos); srcY = s->edge_emu_buffer; @@ -863,51 +862,21 @@ void ff_vc1_interp_mc(VC1Context *v) srcV = vbuf; /* if we deal with range reduction we need to scale source blocks */ if (v->rangeredfrm) { - int i, j; - uint8_t *src, *src2; - - src = srcY; - for (j = 0; j < 17 + s->mspel * 2; j++) { - for (i = 0; i < 17 + s->mspel * 2; i++) - src[i] = ((src[i] - 128) >> 1) + 128; - src += s->linesize; - } - src = srcU; - src2 = srcV; - for (j = 0; j < 9; j++) { - for (i = 0; i < 9; i++) { - src[i] = ((src[i] - 128) >> 1) + 128; - src2[i] = ((src2[i] - 128) >> 1) + 128; - } - src += s->uvlinesize; - src2 += s->uvlinesize; - } + vc1_scale_luma(srcY, k, s->linesize); + vc1_scale_chroma(srcU, srcV, 9, s->uvlinesize); } if (use_ic) { uint8_t (*luty )[256] = v->next_luty; uint8_t (*lutuv)[256] = v->next_lutuv; - int i, j; - uint8_t *src, *src2; - - src = srcY; - for (j = 0; j < 17 + s->mspel * 2; j++) { - int f = v->field_mode ? v->ref_field_type[1] : ((j+src_y - s->mspel) & 1); - for (i = 0; i < 17 + s->mspel * 2; i++) - src[i] = luty[f][src[i]]; - src += s->linesize; - } - src = srcU; - src2 = srcV; - for (j = 0; j < 9; j++) { - int f = v->field_mode ? v->ref_field_type[1] : ((j+uvsrc_y) & 1); - for (i = 0; i < 9; i++) { - src[i] = lutuv[f][src[i]]; - src2[i] = lutuv[f][src2[i]]; - } - src += s->uvlinesize; - src2 += s->uvlinesize; - } + vc1_lut_scale_luma(srcY, + luty[v->field_mode ? v->ref_field_type[1] : ((0+src_y - s->mspel) & 1)], + luty[v->field_mode ? v->ref_field_type[1] : ((1+src_y - s->mspel) & 1)], + k, s->linesize); + vc1_lut_scale_chroma(srcU, srcV, + lutuv[v->field_mode ? v->ref_field_type[1] : ((0+uvsrc_y) & 1)], + lutuv[v->field_mode ? v->ref_field_type[1] : ((1+uvsrc_y) & 1)], + 9, s->uvlinesize); } srcY += s->mspel * (1 + s->linesize); } |