/* * H.26L/H.264/AVC/JVT/14496-10/... decoder * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at> * * This file is part of FFmpeg. * * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #undef FUNC #undef PIXEL_SHIFT #if SIMPLE # define FUNC(n) AV_JOIN(n ## _simple_, BITS) # define PIXEL_SHIFT (BITS >> 4) #else # define FUNC(n) n ## _complex # define PIXEL_SHIFT h->pixel_shift #endif #undef CHROMA_IDC #define CHROMA_IDC 1 #include "h264_mc_template.c" #undef CHROMA_IDC #define CHROMA_IDC 2 #include "h264_mc_template.c" static av_noinline void FUNC(hl_decode_mb)(H264Context *h) { MpegEncContext *const s = &h->s; const int mb_x = s->mb_x; const int mb_y = s->mb_y; const int mb_xy = h->mb_xy; const int mb_type = s->current_picture.f.mb_type[mb_xy]; uint8_t *dest_y, *dest_cb, *dest_cr; int linesize, uvlinesize /*dct_offset*/; int i, j; int *block_offset = &h->block_offset[0]; const int transform_bypass = !SIMPLE && (s->qscale == 0 && h->sps.transform_bypass); /* is_h264 should always be true if SVQ3 is disabled. */ const int is_h264 = !CONFIG_SVQ3_DECODER || SIMPLE || s->codec_id == AV_CODEC_ID_H264; void (*idct_add)(uint8_t *dst, int16_t *block, int stride); const int block_h = 16 >> s->chroma_y_shift; const int chroma422 = CHROMA422; dest_y = s->current_picture.f.data[0] + ((mb_x << PIXEL_SHIFT) + mb_y * s->linesize) * 16; dest_cb = s->current_picture.f.data[1] + (mb_x << PIXEL_SHIFT) * 8 + mb_y * s->uvlinesize * block_h; dest_cr = s->current_picture.f.data[2] + (mb_x << PIXEL_SHIFT) * 8 + mb_y * s->uvlinesize * block_h; s->vdsp.prefetch(dest_y + (s->mb_x & 3) * 4 * s->linesize + (64 << PIXEL_SHIFT), s->linesize, 4); s->vdsp.prefetch(dest_cb + (s->mb_x & 7) * s->uvlinesize + (64 << PIXEL_SHIFT), dest_cr - dest_cb, 2); h->list_counts[mb_xy] = h->list_count; if (!SIMPLE && MB_FIELD) { linesize = h->mb_linesize = s->linesize * 2; uvlinesize = h->mb_uvlinesize = s->uvlinesize * 2; block_offset = &h->block_offset[48]; if (mb_y & 1) { // FIXME move out of this function? dest_y -= s->linesize * 15; dest_cb -= s->uvlinesize * (block_h - 1); dest_cr -= s->uvlinesize * (block_h - 1); } if (FRAME_MBAFF) { int list; for (list = 0; list < h->list_count; list++) { if (!USES_LIST(mb_type, list)) continue; if (IS_16X16(mb_type)) { int8_t *ref = &h->ref_cache[list][scan8[0]]; fill_rectangle(ref, 4, 4, 8, (16 + *ref) ^ (s->mb_y & 1), 1); } else { for (i = 0; i < 16; i += 4) { int ref = h->ref_cache[list][scan8[i]]; if (ref >= 0) fill_rectangle(&h->ref_cache[list][scan8[i]], 2, 2, 8, (16 + ref) ^ (s->mb_y & 1), 1); } } } } } else { linesize = h->mb_linesize = s->linesize; uvlinesize = h->mb_uvlinesize = s->uvlinesize; // dct_offset = s->linesize * 16; } if (!SIMPLE && IS_INTRA_PCM(mb_type)) { const int bit_depth = h->sps.bit_depth_luma; if (PIXEL_SHIFT) { int j; GetBitContext gb; init_get_bits(&gb, (uint8_t *)h->mb, ff_h264_mb_sizes[h->sps.chroma_format_idc] * bit_depth); for (i = 0; i < 16; i++) { uint16_t *tmp_y = (uint16_t *)(dest_y + i * linesize); for (j = 0; j < 16; j++) tmp_y[j] = get_bits(&gb, bit_depth); } if (SIMPLE || !CONFIG_GRAY || !(s->flags & CODEC_FLAG_GRAY)) { if (!h->sps.chroma_format_idc) { for (i = 0; i < block_h; i++) { uint16_t *tmp_cb = (uint16_t *)(dest_cb + i * uvlinesize); uint16_t *tmp_cr = (uint16_t *)(dest_cr + i * uvlinesize); for (j = 0; j < 8; j++) { tmp_cb[j] = tmp_cr[j] = 1 << (bit_depth - 1); } } } else { for (i = 0; i < block_h; i++) { uint16_t *tmp_cb = (uint16_t *)(dest_cb + i * uvlinesize); for (j = 0; j < 8; j++) tmp_cb[j] = get_bits(&gb, bit_depth); } for (i = 0; i < block_h; i++) { uint16_t *tmp_cr = (uint16_t *)(dest_cr + i * uvlinesize); for (j = 0; j < 8; j++) tmp_cr[j] = get_bits(&gb, bit_depth); } } } } else { for (i = 0; i < 16; i++) memcpy(dest_y + i * linesize, (uint8_t *)h->mb + i * 16, 16); if (SIMPLE || !CONFIG_GRAY || !(s->flags & CODEC_FLAG_GRAY)) { if (!h->sps.chroma_format_idc) { for (i = 0; i < 8; i++) { memset(dest_cb + i*uvlinesize, 1 << (bit_depth - 1), 8); memset(dest_cr + i*uvlinesize, 1 << (bit_depth - 1), 8); } } else { uint8_t *src_cb = (uint8_t *)h->mb + 256; uint8_t *src_cr = (uint8_t *)h->mb + 256 + block_h * 8; for (i = 0; i < block_h; i++) { memcpy(dest_cb + i * uvlinesize, src_cb + i * 8, 8); memcpy(dest_cr + i * uvlinesize, src_cr + i * 8, 8); } } } } } else { if (IS_INTRA(mb_type)) { if (h->deblocking_filter) xchg_mb_border(h, dest_y, dest_cb, dest_cr, linesize, uvlinesize, 1, 0, SIMPLE, PIXEL_SHIFT); if (SIMPLE || !CONFIG_GRAY || !(s->flags & CODEC_FLAG_GRAY)) { h->hpc.pred8x8[h->chroma_pred_mode](dest_cb, uvlinesize); h->hpc.pred8x8[h->chroma_pred_mode](dest_cr, uvlinesize); } hl_decode_mb_predict_luma(h, mb_type, is_h264, SIMPLE, transform_bypass, PIXEL_SHIFT, block_offset, linesize, dest_y, 0); if (h->deblocking_filter) xchg_mb_border(h, dest_y, dest_cb, dest_cr, linesize, uvlinesize, 0, 0, SIMPLE, PIXEL_SHIFT); } else if (is_h264) { if (chroma422) { FUNC(hl_motion_422)(h, dest_y, dest_cb, dest_cr, s->me.qpel_put, s->dsp.put_h264_chroma_pixels_tab, s->me.qpel_avg, s->dsp.avg_h264_chroma_pixels_tab, h->h264dsp.weight_h264_pixels_tab, h->h264dsp.biweight_h264_pixels_tab); } else { FUNC(hl_motion_420)(h, dest_y, dest_cb, dest_cr, s->me.qpel_put, s->dsp.put_h264_chroma_pixels_tab, s->me.qpel_avg, s->dsp.avg_h264_chroma_pixels_tab, h->h264dsp.weight_h264_pixels_tab, h->h264dsp.biweight_h264_pixels_tab); } } hl_decode_mb_idct_luma(h, mb_type, is_h264, SIMPLE, transform_bypass, PIXEL_SHIFT, block_offset, linesize, dest_y, 0); if ((SIMPLE || !CONFIG_GRAY || !(s->flags & CODEC_FLAG_GRAY)) && (h->cbp & 0x30)) { uint8_t *dest[2] = { dest_cb, dest_cr }; if (transform_bypass) { if (IS_INTRA(mb_type) && h->sps.profile_idc == 244 && (h->chroma_pred_mode == VERT_PRED8x8 || h->chroma_pred_mode == HOR_PRED8x8)) { h->hpc.pred8x8_add[h->chroma_pred_mode](dest[0], block_offset + 16, h->mb + (16 * 16 * 1 << PIXEL_SHIFT), uvlinesize); h->hpc.pred8x8_add[h->chroma_pred_mode](dest[1], block_offset + 32, h->mb + (16 * 16 * 2 << PIXEL_SHIFT), uvlinesize); } else { idct_add = s->dsp.add_pixels4; for (j = 1; j < 3; j++) { for (i = j * 16; i < j * 16 + 4; i++) if (h->non_zero_count_cache[scan8[i]] || dctcoef_get(h->mb, PIXEL_SHIFT, i * 16)) idct_add(dest[j - 1] + block_offset[i], h->mb + (i * 16 << PIXEL_SHIFT), uvlinesize); if (chroma422) { for (i = j * 16 + 4; i < j * 16 + 8; i++) if (h->non_zero_count_cache[scan8[i + 4]] || dctcoef_get(h->mb, PIXEL_SHIFT, i * 16)) idct_add(dest[j - 1] + block_offset[i + 4], h->mb + (i * 16 << PIXEL_SHIFT), uvlinesize); } } } } else { if (is_h264) { int qp[2]; if (chroma422) { qp[0] = h->chroma_qp[0] + 3; qp[1] = h->chroma_qp[1] + 3; } else { qp[0] = h->chroma_qp[0]; qp[1] = h->chroma_qp[1]; } if (h->non_zero_count_cache[scan8[CHROMA_DC_BLOCK_INDEX + 0]]) h->h264dsp.h264_chroma_dc_dequant_idct(h->mb + (16 * 16 * 1 << PIXEL_SHIFT), h->dequant4_coeff[IS_INTRA(mb_type) ? 1 : 4][qp[0]][0]); if (h->non_zero_count_cache[scan8[CHROMA_DC_BLOCK_INDEX + 1]]) h->h264dsp.h264_chroma_dc_dequant_idct(h->mb + (16 * 16 * 2 << PIXEL_SHIFT), h->dequant4_coeff[IS_INTRA(mb_type) ? 2 : 5][qp[1]][0]); h->h264dsp.h264_idct_add8(dest, block_offset, h->mb, uvlinesize, h->non_zero_count_cache); } else if (CONFIG_SVQ3_DECODER) { h->h264dsp.h264_chroma_dc_dequant_idct(h->mb + 16 * 16 * 1, h->dequant4_coeff[IS_INTRA(mb_type) ? 1 : 4][h->chroma_qp[0]][0]); h->h264dsp.h264_chroma_dc_dequant_idct(h->mb + 16 * 16 * 2, h->dequant4_coeff[IS_INTRA(mb_type) ? 2 : 5][h->chroma_qp[1]][0]); for (j = 1; j < 3; j++) { for (i = j * 16; i < j * 16 + 4; i++) if (h->non_zero_count_cache[scan8[i]] || h->mb[i * 16]) { uint8_t *const ptr = dest[j - 1] + block_offset[i]; ff_svq3_add_idct_c(ptr, h->mb + i * 16, uvlinesize, ff_h264_chroma_qp[0][s->qscale + 12] - 12, 2); } } } } } } if (h->cbp || IS_INTRA(mb_type)) { s->dsp.clear_blocks(h->mb); s->dsp.clear_blocks(h->mb + (24 * 16 << PIXEL_SHIFT)); } } #if !SIMPLE || BITS == 8 #undef CHROMA_IDC #define CHROMA_IDC 3 #include "h264_mc_template.c" static av_noinline void FUNC(hl_decode_mb_444)(H264Context *h) { MpegEncContext *const s = &h->s; const int mb_x = s->mb_x; const int mb_y = s->mb_y; const int mb_xy = h->mb_xy; const int mb_type = s->current_picture.f.mb_type[mb_xy]; uint8_t *dest[3]; int linesize; int i, j, p; int *block_offset = &h->block_offset[0]; const int transform_bypass = !SIMPLE && (s->qscale == 0 && h->sps.transform_bypass); const int plane_count = (SIMPLE || !CONFIG_GRAY || !(s->flags & CODEC_FLAG_GRAY)) ? 3 : 1; for (p = 0; p < plane_count; p++) { dest[p] = s->current_picture.f.data[p] + ((mb_x << PIXEL_SHIFT) + mb_y * s->linesize) * 16; s->vdsp.prefetch(dest[p] + (s->mb_x & 3) * 4 * s->linesize + (64 << PIXEL_SHIFT), s->linesize, 4); } h->list_counts[mb_xy] = h->list_count; if (!SIMPLE && MB_FIELD) { linesize = h->mb_linesize = h->mb_uvlinesize = s->linesize * 2; block_offset = &h->block_offset[48]; if (mb_y & 1) // FIXME move out of this function? for (p = 0; p < 3; p++) dest[p] -= s->linesize * 15; if (FRAME_MBAFF) { int list; for (list = 0; list < h->list_count; list++) { if (!USES_LIST(mb_type, list)) continue; if (IS_16X16(mb_type)) { int8_t *ref = &h->ref_cache[list][scan8[0]]; fill_rectangle(ref, 4, 4, 8, (16 + *ref) ^ (s->mb_y & 1), 1); } else { for (i = 0; i < 16; i += 4) { int ref = h->ref_cache[list][scan8[i]]; if (ref >= 0) fill_rectangle(&h->ref_cache[list][scan8[i]], 2, 2, 8, (16 + ref) ^ (s->mb_y & 1), 1); } } } } } else { linesize = h->mb_linesize = h->mb_uvlinesize = s->linesize; } if (!SIMPLE && IS_INTRA_PCM(mb_type)) { if (PIXEL_SHIFT) { const int bit_depth = h->sps.bit_depth_luma; GetBitContext gb; init_get_bits(&gb, (uint8_t *)h->mb, 768 * bit_depth); for (p = 0; p < plane_count; p++) for (i = 0; i < 16; i++) { uint16_t *tmp = (uint16_t *)(dest[p] + i * linesize); for (j = 0; j < 16; j++) tmp[j] = get_bits(&gb, bit_depth); } } else { for (p = 0; p < plane_count; p++) for (i = 0; i < 16; i++) memcpy(dest[p] + i * linesize, (uint8_t *)h->mb + p * 256 + i * 16, 16); } } else { if (IS_INTRA(mb_type)) { if (h->deblocking_filter) xchg_mb_border(h, dest[0], dest[1], dest[2], linesize, linesize, 1, 1, SIMPLE, PIXEL_SHIFT); for (p = 0; p < plane_count; p++) hl_decode_mb_predict_luma(h, mb_type, 1, SIMPLE, transform_bypass, PIXEL_SHIFT, block_offset, linesize, dest[p], p); if (h->deblocking_filter) xchg_mb_border(h, dest[0], dest[1], dest[2], linesize, linesize, 0, 1, SIMPLE, PIXEL_SHIFT); } else { FUNC(hl_motion_444)(h, dest[0], dest[1], dest[2], s->me.qpel_put, s->dsp.put_h264_chroma_pixels_tab, s->me.qpel_avg, s->dsp.avg_h264_chroma_pixels_tab, h->h264dsp.weight_h264_pixels_tab, h->h264dsp.biweight_h264_pixels_tab); } for (p = 0; p < plane_count; p++) hl_decode_mb_idct_luma(h, mb_type, 1, SIMPLE, transform_bypass, PIXEL_SHIFT, block_offset, linesize, dest[p], p); } if (h->cbp || IS_INTRA(mb_type)) { s->dsp.clear_blocks(h->mb); s->dsp.clear_blocks(h->mb + (24 * 16 << PIXEL_SHIFT)); } } #endif