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author | Vignesh Venkatasubramanian <vigneshv@google.com> | 2014-03-27 00:50:12 +0000 |
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committer | Android Git Automerger <android-git-automerger@android.com> | 2014-03-27 00:50:12 +0000 |
commit | 7616a7e29066d65ecd1d6f54485360d3964c67bb (patch) | |
tree | c051eed430b02e9a3b5275d65969e25b024e2733 /libvpx/vp9/encoder/vp9_quantize.c | |
parent | b2e48fbeea3ad651e5e1d00770cb3609c60bb3e7 (diff) | |
parent | 2ec72e65689c948e92b826ae1e867bf369e72f13 (diff) | |
download | android_external_libvpx-7616a7e29066d65ecd1d6f54485360d3964c67bb.tar.gz android_external_libvpx-7616a7e29066d65ecd1d6f54485360d3964c67bb.tar.bz2 android_external_libvpx-7616a7e29066d65ecd1d6f54485360d3964c67bb.zip |
am 2ec72e65: libvpx: Roll latest libvpx
* commit '2ec72e65689c948e92b826ae1e867bf369e72f13':
libvpx: Roll latest libvpx
Diffstat (limited to 'libvpx/vp9/encoder/vp9_quantize.c')
-rw-r--r-- | libvpx/vp9/encoder/vp9_quantize.c | 201 |
1 files changed, 69 insertions, 132 deletions
diff --git a/libvpx/vp9/encoder/vp9_quantize.c b/libvpx/vp9/encoder/vp9_quantize.c index d24be96..4ab8995 100644 --- a/libvpx/vp9/encoder/vp9_quantize.c +++ b/libvpx/vp9/encoder/vp9_quantize.c @@ -9,18 +9,15 @@ */ #include <math.h> + #include "vpx_mem/vpx_mem.h" -#include "vp9/encoder/vp9_onyx_int.h" -#include "vp9/encoder/vp9_rdopt.h" -#include "vp9/encoder/vp9_quantize.h" #include "vp9/common/vp9_quant_common.h" - #include "vp9/common/vp9_seg_common.h" -#ifdef ENC_DEBUG -extern int enc_debug; -#endif +#include "vp9/encoder/vp9_onyx_int.h" +#include "vp9/encoder/vp9_quantize.h" +#include "vp9/encoder/vp9_rdopt.h" void vp9_quantize_b_c(const int16_t *coeff_ptr, intptr_t count, int skip_block, @@ -30,7 +27,7 @@ void vp9_quantize_b_c(const int16_t *coeff_ptr, intptr_t count, const int16_t *dequant_ptr, int zbin_oq_value, uint16_t *eob_ptr, const int16_t *scan, const int16_t *iscan) { - int i, non_zero_count = count, eob = -1; + int i, non_zero_count = (int)count, eob = -1; const int zbins[2] = { zbin_ptr[0] + zbin_oq_value, zbin_ptr[1] + zbin_oq_value }; const int nzbins[2] = { zbins[0] * -1, @@ -41,7 +38,7 @@ void vp9_quantize_b_c(const int16_t *coeff_ptr, intptr_t count, if (!skip_block) { // Pre-scan pass - for (i = count - 1; i >= 0; i--) { + for (i = (int)count - 1; i >= 0; i--) { const int rc = scan[i]; const int coeff = coeff_ptr[rc]; @@ -83,99 +80,64 @@ void vp9_quantize_b_32x32_c(const int16_t *coeff_ptr, intptr_t n_coeffs, const int16_t *dequant_ptr, int zbin_oq_value, uint16_t *eob_ptr, const int16_t *scan, const int16_t *iscan) { - int i, rc, eob; - int zbins[2], nzbins[2]; - int x, y, z, sz; + const int zbins[2] = { ROUND_POWER_OF_TWO(zbin_ptr[0] + zbin_oq_value, 1), + ROUND_POWER_OF_TWO(zbin_ptr[1] + zbin_oq_value, 1) }; + const int nzbins[2] = {zbins[0] * -1, zbins[1] * -1}; + int idx = 0; int idx_arr[1024]; + int i, eob = -1; - vpx_memset(qcoeff_ptr, 0, n_coeffs*sizeof(int16_t)); - vpx_memset(dqcoeff_ptr, 0, n_coeffs*sizeof(int16_t)); - - eob = -1; - - // Base ZBIN - zbins[0] = ROUND_POWER_OF_TWO(zbin_ptr[0] + zbin_oq_value, 1); - zbins[1] = ROUND_POWER_OF_TWO(zbin_ptr[1] + zbin_oq_value, 1); - nzbins[0] = zbins[0] * -1; - nzbins[1] = zbins[1] * -1; + vpx_memset(qcoeff_ptr, 0, n_coeffs * sizeof(int16_t)); + vpx_memset(dqcoeff_ptr, 0, n_coeffs * sizeof(int16_t)); if (!skip_block) { // Pre-scan pass for (i = 0; i < n_coeffs; i++) { - rc = scan[i]; - z = coeff_ptr[rc]; + const int rc = scan[i]; + const int coeff = coeff_ptr[rc]; // If the coefficient is out of the base ZBIN range, keep it for // quantization. - if (z >= zbins[rc != 0] || z <= nzbins[rc != 0]) + if (coeff >= zbins[rc != 0] || coeff <= nzbins[rc != 0]) idx_arr[idx++] = i; } // Quantization pass: only process the coefficients selected in // pre-scan pass. Note: idx can be zero. for (i = 0; i < idx; i++) { - rc = scan[idx_arr[i]]; - - z = coeff_ptr[rc]; - sz = (z >> 31); // sign of z - x = (z ^ sz) - sz; // x = abs(z) - - x += ROUND_POWER_OF_TWO(round_ptr[rc != 0], 1); - x = clamp(x, INT16_MIN, INT16_MAX); - y = ((((x * quant_ptr[rc != 0]) >> 16) + x) * - quant_shift_ptr[rc != 0]) >> 15; // quantize (x) - - x = (y ^ sz) - sz; // get the sign back - qcoeff_ptr[rc] = x; // write to destination - dqcoeff_ptr[rc] = x * dequant_ptr[rc != 0] / 2; // dequantized value - - if (y) - eob = idx_arr[i]; // last nonzero coeffs + const int rc = scan[idx_arr[i]]; + const int coeff = coeff_ptr[rc]; + const int coeff_sign = (coeff >> 31); + int tmp; + int abs_coeff = (coeff ^ coeff_sign) - coeff_sign; + abs_coeff += ROUND_POWER_OF_TWO(round_ptr[rc != 0], 1); + abs_coeff = clamp(abs_coeff, INT16_MIN, INT16_MAX); + tmp = ((((abs_coeff * quant_ptr[rc != 0]) >> 16) + abs_coeff) * + quant_shift_ptr[rc != 0]) >> 15; + + qcoeff_ptr[rc] = (tmp ^ coeff_sign) - coeff_sign; + dqcoeff_ptr[rc] = qcoeff_ptr[rc] * dequant_ptr[rc != 0] / 2; + + if (tmp) + eob = idx_arr[i]; } } *eob_ptr = eob + 1; } -struct plane_block_idx { - int plane; - int block; -}; - -// TODO(jkoleszar): returning a struct so it can be used in a const context, -// expect to refactor this further later. -static INLINE struct plane_block_idx plane_block_idx(int y_blocks, - int b_idx) { - const int v_offset = y_blocks * 5 / 4; - struct plane_block_idx res; - - if (b_idx < y_blocks) { - res.plane = 0; - res.block = b_idx; - } else if (b_idx < v_offset) { - res.plane = 1; - res.block = b_idx - y_blocks; - } else { - assert(b_idx < y_blocks * 3 / 2); - res.plane = 2; - res.block = b_idx - v_offset; - } - return res; -} - -void vp9_regular_quantize_b_4x4(MACROBLOCK *x, int y_blocks, int b_idx, +void vp9_regular_quantize_b_4x4(MACROBLOCK *x, int plane, int block, const int16_t *scan, const int16_t *iscan) { MACROBLOCKD *const xd = &x->e_mbd; - const struct plane_block_idx pb_idx = plane_block_idx(y_blocks, b_idx); - struct macroblock_plane* p = &x->plane[pb_idx.plane]; - struct macroblockd_plane* pd = &xd->plane[pb_idx.plane]; + struct macroblock_plane *p = &x->plane[plane]; + struct macroblockd_plane *pd = &xd->plane[plane]; - vp9_quantize_b(BLOCK_OFFSET(p->coeff, pb_idx.block), + vp9_quantize_b(BLOCK_OFFSET(p->coeff, block), 16, x->skip_block, p->zbin, p->round, p->quant, p->quant_shift, - BLOCK_OFFSET(pd->qcoeff, pb_idx.block), - BLOCK_OFFSET(pd->dqcoeff, pb_idx.block), - pd->dequant, p->zbin_extra, &pd->eobs[pb_idx.block], scan, iscan); + BLOCK_OFFSET(p->qcoeff, block), + BLOCK_OFFSET(pd->dqcoeff, block), + pd->dequant, p->zbin_extra, &p->eobs[block], scan, iscan); } static void invert_quant(int16_t *quant, int16_t *shift, int d) { @@ -190,44 +152,40 @@ static void invert_quant(int16_t *quant, int16_t *shift, int d) { } void vp9_init_quantizer(VP9_COMP *cpi) { - int i, q; VP9_COMMON *const cm = &cpi->common; + int i, q, quant; for (q = 0; q < QINDEX_RANGE; q++) { const int qzbin_factor = q == 0 ? 64 : (vp9_dc_quant(q, 0) < 148 ? 84 : 80); const int qrounding_factor = q == 0 ? 64 : 48; - // y for (i = 0; i < 2; ++i) { - const int quant = i == 0 ? vp9_dc_quant(q, cm->y_dc_delta_q) - : vp9_ac_quant(q, 0); + // y + quant = i == 0 ? vp9_dc_quant(q, cm->y_dc_delta_q) + : vp9_ac_quant(q, 0); invert_quant(&cpi->y_quant[q][i], &cpi->y_quant_shift[q][i], quant); cpi->y_zbin[q][i] = ROUND_POWER_OF_TWO(qzbin_factor * quant, 7); cpi->y_round[q][i] = (qrounding_factor * quant) >> 7; cm->y_dequant[q][i] = quant; - } - // uv - for (i = 0; i < 2; ++i) { - const int quant = i == 0 ? vp9_dc_quant(q, cm->uv_dc_delta_q) - : vp9_ac_quant(q, cm->uv_ac_delta_q); + // uv + quant = i == 0 ? vp9_dc_quant(q, cm->uv_dc_delta_q) + : vp9_ac_quant(q, cm->uv_ac_delta_q); invert_quant(&cpi->uv_quant[q][i], &cpi->uv_quant_shift[q][i], quant); cpi->uv_zbin[q][i] = ROUND_POWER_OF_TWO(qzbin_factor * quant, 7); cpi->uv_round[q][i] = (qrounding_factor * quant) >> 7; cm->uv_dequant[q][i] = quant; - } #if CONFIG_ALPHA - // alpha - for (i = 0; i < 2; ++i) { - const int quant = i == 0 ? vp9_dc_quant(q, cm->a_dc_delta_q) - : vp9_ac_quant(q, cm->a_ac_delta_q); + // alpha + quant = i == 0 ? vp9_dc_quant(q, cm->a_dc_delta_q) + : vp9_ac_quant(q, cm->a_ac_delta_q); invert_quant(&cpi->a_quant[q][i], &cpi->a_quant_shift[q][i], quant); cpi->a_zbin[q][i] = ROUND_POWER_OF_TWO(qzbin_factor * quant, 7); cpi->a_round[q][i] = (qrounding_factor * quant) >> 7; cm->a_dequant[q][i] = quant; - } #endif + } for (i = 2; i < 8; i++) { cpi->y_quant[q][i] = cpi->y_quant[q][1]; @@ -253,39 +211,31 @@ void vp9_init_quantizer(VP9_COMP *cpi) { } } -void vp9_mb_init_quantizer(VP9_COMP *cpi, MACROBLOCK *x) { - int i; - VP9_COMMON *const cm = &cpi->common; +void vp9_init_plane_quantizers(VP9_COMP *cpi, MACROBLOCK *x) { + const VP9_COMMON *const cm = &cpi->common; MACROBLOCKD *xd = &x->e_mbd; - int zbin_extra; - int segment_id = xd->mi_8x8[0]->mbmi.segment_id; - const int qindex = vp9_get_qindex(&cpi->common.seg, segment_id, - cpi->common.base_qindex); - - int rdmult = vp9_compute_rd_mult(cpi, qindex + cm->y_dc_delta_q); + const int segment_id = xd->mi_8x8[0]->mbmi.segment_id; + const int qindex = vp9_get_qindex(&cm->seg, segment_id, cm->base_qindex); + const int rdmult = vp9_compute_rd_mult(cpi, qindex + cm->y_dc_delta_q); + const int zbin = cpi->zbin_mode_boost + x->act_zbin_adj; + int i; // Y - zbin_extra = (cpi->common.y_dequant[qindex][1] * - (cpi->zbin_mode_boost + x->act_zbin_adj)) >> 7; - x->plane[0].quant = cpi->y_quant[qindex]; x->plane[0].quant_shift = cpi->y_quant_shift[qindex]; x->plane[0].zbin = cpi->y_zbin[qindex]; x->plane[0].round = cpi->y_round[qindex]; - x->plane[0].zbin_extra = (int16_t)zbin_extra; - x->e_mbd.plane[0].dequant = cpi->common.y_dequant[qindex]; + x->plane[0].zbin_extra = (int16_t)((cm->y_dequant[qindex][1] * zbin) >> 7); + xd->plane[0].dequant = cm->y_dequant[qindex]; // UV - zbin_extra = (cpi->common.uv_dequant[qindex][1] * - (cpi->zbin_mode_boost + x->act_zbin_adj)) >> 7; - for (i = 1; i < 3; i++) { x->plane[i].quant = cpi->uv_quant[qindex]; x->plane[i].quant_shift = cpi->uv_quant_shift[qindex]; x->plane[i].zbin = cpi->uv_zbin[qindex]; x->plane[i].round = cpi->uv_round[qindex]; - x->plane[i].zbin_extra = (int16_t)zbin_extra; - x->e_mbd.plane[i].dequant = cpi->common.uv_dequant[qindex]; + x->plane[i].zbin_extra = (int16_t)((cm->uv_dequant[qindex][1] * zbin) >> 7); + xd->plane[i].dequant = cm->uv_dequant[qindex]; } #if CONFIG_ALPHA @@ -293,19 +243,15 @@ void vp9_mb_init_quantizer(VP9_COMP *cpi, MACROBLOCK *x) { x->plane[3].quant_shift = cpi->a_quant_shift[qindex]; x->plane[3].zbin = cpi->a_zbin[qindex]; x->plane[3].round = cpi->a_round[qindex]; - x->plane[3].zbin_extra = (int16_t)zbin_extra; - x->e_mbd.plane[3].dequant = cpi->common.a_dequant[qindex]; + x->plane[3].zbin_extra = (int16_t)((cm->a_dequant[qindex][1] * zbin) >> 7); + xd->plane[3].dequant = cm->a_dequant[qindex]; #endif - x->skip_block = vp9_segfeature_active(&cpi->common.seg, segment_id, - SEG_LVL_SKIP); - - /* save this macroblock QIndex for vp9_update_zbin_extra() */ + x->skip_block = vp9_segfeature_active(&cm->seg, segment_id, SEG_LVL_SKIP); x->q_index = qindex; - /* R/D setup */ - cpi->mb.errorperbit = rdmult >> 6; - cpi->mb.errorperbit += (cpi->mb.errorperbit == 0); + x->errorperbit = rdmult >> 6; + x->errorperbit += (x->errorperbit == 0); vp9_initialize_me_consts(cpi, x->q_index); } @@ -323,26 +269,17 @@ void vp9_update_zbin_extra(VP9_COMP *cpi, MACROBLOCK *x) { } void vp9_frame_init_quantizer(VP9_COMP *cpi) { - // Clear Zbin mode boost for default case cpi->zbin_mode_boost = 0; - - // MB level quantizer setup - vp9_mb_init_quantizer(cpi, &cpi->mb); + vp9_init_plane_quantizers(cpi, &cpi->mb); } void vp9_set_quantizer(struct VP9_COMP *cpi, int q) { - VP9_COMMON *cm = &cpi->common; + VP9_COMMON *const cm = &cpi->common; + // quantizer has to be reinitialized with vp9_init_quantizer() if any + // delta_q changes. cm->base_qindex = q; - - // if any of the delta_q values are changing update flag will - // have to be set. cm->y_dc_delta_q = 0; cm->uv_dc_delta_q = 0; cm->uv_ac_delta_q = 0; - - // quantizer has to be reinitialized if any delta_q changes. - // As there are not any here for now this is inactive code. - // if(update) - // vp9_init_quantizer(cpi); } |