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379 lines
17 KiB
379 lines
17 KiB
/* |
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* H.26L/H.264/AVC/JVT/14496-10/... decoder |
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* Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at> |
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* |
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* This file is part of Libav. |
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* |
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* Libav is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* Libav is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with Libav; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#undef FUNC |
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#undef PIXEL_SHIFT |
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#if SIMPLE |
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# define FUNC(n) AV_JOIN(n ## _simple_, BITS) |
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# define PIXEL_SHIFT (BITS >> 4) |
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#else |
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# define FUNC(n) n ## _complex |
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# define PIXEL_SHIFT h->pixel_shift |
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#endif |
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#undef CHROMA_IDC |
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#define CHROMA_IDC 1 |
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#include "h264_mc_template.c" |
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#undef CHROMA_IDC |
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#define CHROMA_IDC 2 |
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#include "h264_mc_template.c" |
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static av_noinline void FUNC(hl_decode_mb)(H264Context *h) |
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{ |
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const int mb_x = h->mb_x; |
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const int mb_y = h->mb_y; |
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const int mb_xy = h->mb_xy; |
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const int mb_type = h->cur_pic.mb_type[mb_xy]; |
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uint8_t *dest_y, *dest_cb, *dest_cr; |
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int linesize, uvlinesize /*dct_offset*/; |
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int i, j; |
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int *block_offset = &h->block_offset[0]; |
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const int transform_bypass = !SIMPLE && (h->qscale == 0 && h->sps.transform_bypass); |
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/* is_h264 should always be true if SVQ3 is disabled. */ |
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const int is_h264 = !CONFIG_SVQ3_DECODER || SIMPLE || h->avctx->codec_id == AV_CODEC_ID_H264; |
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void (*idct_add)(uint8_t *dst, int16_t *block, int stride); |
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const int block_h = 16 >> h->chroma_y_shift; |
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const int chroma422 = CHROMA422; |
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dest_y = h->cur_pic.f.data[0] + ((mb_x << PIXEL_SHIFT) + mb_y * h->linesize) * 16; |
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dest_cb = h->cur_pic.f.data[1] + (mb_x << PIXEL_SHIFT) * 8 + mb_y * h->uvlinesize * block_h; |
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dest_cr = h->cur_pic.f.data[2] + (mb_x << PIXEL_SHIFT) * 8 + mb_y * h->uvlinesize * block_h; |
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h->vdsp.prefetch(dest_y + (h->mb_x & 3) * 4 * h->linesize + (64 << PIXEL_SHIFT), h->linesize, 4); |
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h->vdsp.prefetch(dest_cb + (h->mb_x & 7) * h->uvlinesize + (64 << PIXEL_SHIFT), dest_cr - dest_cb, 2); |
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h->list_counts[mb_xy] = h->list_count; |
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if (!SIMPLE && MB_FIELD) { |
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linesize = h->mb_linesize = h->linesize * 2; |
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uvlinesize = h->mb_uvlinesize = h->uvlinesize * 2; |
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block_offset = &h->block_offset[48]; |
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if (mb_y & 1) { // FIXME move out of this function? |
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dest_y -= h->linesize * 15; |
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dest_cb -= h->uvlinesize * (block_h - 1); |
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dest_cr -= h->uvlinesize * (block_h - 1); |
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} |
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if (FRAME_MBAFF) { |
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int list; |
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for (list = 0; list < h->list_count; list++) { |
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if (!USES_LIST(mb_type, list)) |
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continue; |
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if (IS_16X16(mb_type)) { |
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int8_t *ref = &h->ref_cache[list][scan8[0]]; |
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fill_rectangle(ref, 4, 4, 8, (16 + *ref) ^ (h->mb_y & 1), 1); |
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} else { |
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for (i = 0; i < 16; i += 4) { |
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int ref = h->ref_cache[list][scan8[i]]; |
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if (ref >= 0) |
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fill_rectangle(&h->ref_cache[list][scan8[i]], 2, 2, |
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8, (16 + ref) ^ (h->mb_y & 1), 1); |
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} |
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} |
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} |
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} |
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} else { |
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linesize = h->mb_linesize = h->linesize; |
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uvlinesize = h->mb_uvlinesize = h->uvlinesize; |
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// dct_offset = s->linesize * 16; |
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} |
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if (!SIMPLE && IS_INTRA_PCM(mb_type)) { |
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if (PIXEL_SHIFT) { |
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const int bit_depth = h->sps.bit_depth_luma; |
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int j; |
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GetBitContext gb; |
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init_get_bits(&gb, h->intra_pcm_ptr, |
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ff_h264_mb_sizes[h->sps.chroma_format_idc] * bit_depth); |
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for (i = 0; i < 16; i++) { |
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uint16_t *tmp_y = (uint16_t *)(dest_y + i * linesize); |
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for (j = 0; j < 16; j++) |
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tmp_y[j] = get_bits(&gb, bit_depth); |
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} |
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if (SIMPLE || !CONFIG_GRAY || !(h->flags & CODEC_FLAG_GRAY)) { |
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if (!h->sps.chroma_format_idc) { |
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for (i = 0; i < block_h; i++) { |
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uint16_t *tmp_cb = (uint16_t *)(dest_cb + i * uvlinesize); |
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for (j = 0; j < 8; j++) |
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tmp_cb[j] = 1 << (bit_depth - 1); |
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} |
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for (i = 0; i < block_h; i++) { |
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uint16_t *tmp_cr = (uint16_t *)(dest_cr + i * uvlinesize); |
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for (j = 0; j < 8; j++) |
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tmp_cr[j] = 1 << (bit_depth - 1); |
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} |
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} else { |
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for (i = 0; i < block_h; i++) { |
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uint16_t *tmp_cb = (uint16_t *)(dest_cb + i * uvlinesize); |
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for (j = 0; j < 8; j++) |
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tmp_cb[j] = get_bits(&gb, bit_depth); |
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} |
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for (i = 0; i < block_h; i++) { |
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uint16_t *tmp_cr = (uint16_t *)(dest_cr + i * uvlinesize); |
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for (j = 0; j < 8; j++) |
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tmp_cr[j] = get_bits(&gb, bit_depth); |
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} |
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} |
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} |
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} else { |
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for (i = 0; i < 16; i++) |
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memcpy(dest_y + i * linesize, h->intra_pcm_ptr + i * 16, 16); |
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if (SIMPLE || !CONFIG_GRAY || !(h->flags & CODEC_FLAG_GRAY)) { |
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if (!h->sps.chroma_format_idc) { |
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for (i = 0; i < block_h; i++) { |
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memset(dest_cb + i * uvlinesize, 128, 8); |
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memset(dest_cr + i * uvlinesize, 128, 8); |
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} |
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} else { |
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const uint8_t *src_cb = h->intra_pcm_ptr + 256; |
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const uint8_t *src_cr = h->intra_pcm_ptr + 256 + block_h * 8; |
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for (i = 0; i < block_h; i++) { |
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memcpy(dest_cb + i * uvlinesize, src_cb + i * 8, 8); |
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memcpy(dest_cr + i * uvlinesize, src_cr + i * 8, 8); |
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} |
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} |
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} |
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} |
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} else { |
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if (IS_INTRA(mb_type)) { |
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if (h->deblocking_filter) |
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xchg_mb_border(h, dest_y, dest_cb, dest_cr, linesize, |
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uvlinesize, 1, 0, SIMPLE, PIXEL_SHIFT); |
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if (SIMPLE || !CONFIG_GRAY || !(h->flags & CODEC_FLAG_GRAY)) { |
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h->hpc.pred8x8[h->chroma_pred_mode](dest_cb, uvlinesize); |
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h->hpc.pred8x8[h->chroma_pred_mode](dest_cr, uvlinesize); |
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} |
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hl_decode_mb_predict_luma(h, mb_type, is_h264, SIMPLE, |
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transform_bypass, PIXEL_SHIFT, |
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block_offset, linesize, dest_y, 0); |
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if (h->deblocking_filter) |
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xchg_mb_border(h, dest_y, dest_cb, dest_cr, linesize, |
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uvlinesize, 0, 0, SIMPLE, PIXEL_SHIFT); |
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} else if (is_h264) { |
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if (chroma422) { |
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FUNC(hl_motion_422)(h, dest_y, dest_cb, dest_cr, |
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h->me.qpel_put, h->h264chroma.put_h264_chroma_pixels_tab, |
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h->me.qpel_avg, h->h264chroma.avg_h264_chroma_pixels_tab, |
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h->h264dsp.weight_h264_pixels_tab, |
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h->h264dsp.biweight_h264_pixels_tab); |
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} else { |
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FUNC(hl_motion_420)(h, dest_y, dest_cb, dest_cr, |
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h->me.qpel_put, h->h264chroma.put_h264_chroma_pixels_tab, |
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h->me.qpel_avg, h->h264chroma.avg_h264_chroma_pixels_tab, |
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h->h264dsp.weight_h264_pixels_tab, |
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h->h264dsp.biweight_h264_pixels_tab); |
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} |
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} |
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hl_decode_mb_idct_luma(h, mb_type, is_h264, SIMPLE, transform_bypass, |
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PIXEL_SHIFT, block_offset, linesize, dest_y, 0); |
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if ((SIMPLE || !CONFIG_GRAY || !(h->flags & CODEC_FLAG_GRAY)) && |
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(h->cbp & 0x30)) { |
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uint8_t *dest[2] = { dest_cb, dest_cr }; |
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if (transform_bypass) { |
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if (IS_INTRA(mb_type) && h->sps.profile_idc == 244 && |
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(h->chroma_pred_mode == VERT_PRED8x8 || |
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h->chroma_pred_mode == HOR_PRED8x8)) { |
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h->hpc.pred8x8_add[h->chroma_pred_mode](dest[0], |
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block_offset + 16, |
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h->mb + (16 * 16 * 1 << PIXEL_SHIFT), |
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uvlinesize); |
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h->hpc.pred8x8_add[h->chroma_pred_mode](dest[1], |
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block_offset + 32, |
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h->mb + (16 * 16 * 2 << PIXEL_SHIFT), |
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uvlinesize); |
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} else { |
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idct_add = h->h264dsp.h264_add_pixels4; |
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for (j = 1; j < 3; j++) { |
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for (i = j * 16; i < j * 16 + 4; i++) |
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if (h->non_zero_count_cache[scan8[i]] || |
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dctcoef_get(h->mb, PIXEL_SHIFT, i * 16)) |
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idct_add(dest[j - 1] + block_offset[i], |
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h->mb + (i * 16 << PIXEL_SHIFT), |
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uvlinesize); |
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if (chroma422) { |
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for (i = j * 16 + 4; i < j * 16 + 8; i++) |
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if (h->non_zero_count_cache[scan8[i + 4]] || |
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dctcoef_get(h->mb, PIXEL_SHIFT, i * 16)) |
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idct_add(dest[j - 1] + block_offset[i + 4], |
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h->mb + (i * 16 << PIXEL_SHIFT), |
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uvlinesize); |
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} |
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} |
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} |
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} else { |
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if (is_h264) { |
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int qp[2]; |
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if (chroma422) { |
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qp[0] = h->chroma_qp[0] + 3; |
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qp[1] = h->chroma_qp[1] + 3; |
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} else { |
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qp[0] = h->chroma_qp[0]; |
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qp[1] = h->chroma_qp[1]; |
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} |
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if (h->non_zero_count_cache[scan8[CHROMA_DC_BLOCK_INDEX + 0]]) |
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h->h264dsp.h264_chroma_dc_dequant_idct(h->mb + (16 * 16 * 1 << PIXEL_SHIFT), |
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h->dequant4_coeff[IS_INTRA(mb_type) ? 1 : 4][qp[0]][0]); |
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if (h->non_zero_count_cache[scan8[CHROMA_DC_BLOCK_INDEX + 1]]) |
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h->h264dsp.h264_chroma_dc_dequant_idct(h->mb + (16 * 16 * 2 << PIXEL_SHIFT), |
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h->dequant4_coeff[IS_INTRA(mb_type) ? 2 : 5][qp[1]][0]); |
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h->h264dsp.h264_idct_add8(dest, block_offset, |
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h->mb, uvlinesize, |
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h->non_zero_count_cache); |
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} else if (CONFIG_SVQ3_DECODER) { |
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h->h264dsp.h264_chroma_dc_dequant_idct(h->mb + 16 * 16 * 1, |
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h->dequant4_coeff[IS_INTRA(mb_type) ? 1 : 4][h->chroma_qp[0]][0]); |
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h->h264dsp.h264_chroma_dc_dequant_idct(h->mb + 16 * 16 * 2, |
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h->dequant4_coeff[IS_INTRA(mb_type) ? 2 : 5][h->chroma_qp[1]][0]); |
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for (j = 1; j < 3; j++) { |
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for (i = j * 16; i < j * 16 + 4; i++) |
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if (h->non_zero_count_cache[scan8[i]] || h->mb[i * 16]) { |
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uint8_t *const ptr = dest[j - 1] + block_offset[i]; |
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ff_svq3_add_idct_c(ptr, h->mb + i * 16, |
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uvlinesize, |
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ff_h264_chroma_qp[0][h->qscale + 12] - 12, 2); |
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} |
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} |
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} |
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} |
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} |
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if (h->cbp || IS_INTRA(mb_type)) { |
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h->dsp.clear_blocks(h->mb); |
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h->dsp.clear_blocks(h->mb + (24 * 16 << PIXEL_SHIFT)); |
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} |
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} |
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} |
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#if !SIMPLE || BITS == 8 |
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#undef CHROMA_IDC |
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#define CHROMA_IDC 3 |
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#include "h264_mc_template.c" |
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static av_noinline void FUNC(hl_decode_mb_444)(H264Context *h) |
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{ |
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const int mb_x = h->mb_x; |
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const int mb_y = h->mb_y; |
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const int mb_xy = h->mb_xy; |
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const int mb_type = h->cur_pic.mb_type[mb_xy]; |
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uint8_t *dest[3]; |
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int linesize; |
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int i, j, p; |
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int *block_offset = &h->block_offset[0]; |
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const int transform_bypass = !SIMPLE && (h->qscale == 0 && h->sps.transform_bypass); |
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const int plane_count = (SIMPLE || !CONFIG_GRAY || !(h->flags & CODEC_FLAG_GRAY)) ? 3 : 1; |
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for (p = 0; p < plane_count; p++) { |
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dest[p] = h->cur_pic.f.data[p] + |
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((mb_x << PIXEL_SHIFT) + mb_y * h->linesize) * 16; |
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h->vdsp.prefetch(dest[p] + (h->mb_x & 3) * 4 * h->linesize + (64 << PIXEL_SHIFT), |
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h->linesize, 4); |
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} |
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h->list_counts[mb_xy] = h->list_count; |
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if (!SIMPLE && MB_FIELD) { |
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linesize = h->mb_linesize = h->mb_uvlinesize = h->linesize * 2; |
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block_offset = &h->block_offset[48]; |
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if (mb_y & 1) // FIXME move out of this function? |
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for (p = 0; p < 3; p++) |
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dest[p] -= h->linesize * 15; |
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if (FRAME_MBAFF) { |
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int list; |
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for (list = 0; list < h->list_count; list++) { |
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if (!USES_LIST(mb_type, list)) |
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continue; |
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if (IS_16X16(mb_type)) { |
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int8_t *ref = &h->ref_cache[list][scan8[0]]; |
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fill_rectangle(ref, 4, 4, 8, (16 + *ref) ^ (h->mb_y & 1), 1); |
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} else { |
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for (i = 0; i < 16; i += 4) { |
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int ref = h->ref_cache[list][scan8[i]]; |
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if (ref >= 0) |
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fill_rectangle(&h->ref_cache[list][scan8[i]], 2, 2, |
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8, (16 + ref) ^ (h->mb_y & 1), 1); |
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} |
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} |
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} |
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} |
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} else { |
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linesize = h->mb_linesize = h->mb_uvlinesize = h->linesize; |
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} |
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if (!SIMPLE && IS_INTRA_PCM(mb_type)) { |
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if (PIXEL_SHIFT) { |
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const int bit_depth = h->sps.bit_depth_luma; |
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GetBitContext gb; |
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init_get_bits(&gb, h->intra_pcm_ptr, 768 * bit_depth); |
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for (p = 0; p < plane_count; p++) |
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for (i = 0; i < 16; i++) { |
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uint16_t *tmp = (uint16_t *)(dest[p] + i * linesize); |
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for (j = 0; j < 16; j++) |
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tmp[j] = get_bits(&gb, bit_depth); |
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} |
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} else { |
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for (p = 0; p < plane_count; p++) |
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for (i = 0; i < 16; i++) |
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memcpy(dest[p] + i * linesize, |
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h->intra_pcm_ptr + p * 256 + i * 16, 16); |
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} |
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} else { |
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if (IS_INTRA(mb_type)) { |
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if (h->deblocking_filter) |
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xchg_mb_border(h, dest[0], dest[1], dest[2], linesize, |
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linesize, 1, 1, SIMPLE, PIXEL_SHIFT); |
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for (p = 0; p < plane_count; p++) |
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hl_decode_mb_predict_luma(h, mb_type, 1, SIMPLE, |
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transform_bypass, PIXEL_SHIFT, |
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block_offset, linesize, dest[p], p); |
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if (h->deblocking_filter) |
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xchg_mb_border(h, dest[0], dest[1], dest[2], linesize, |
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linesize, 0, 1, SIMPLE, PIXEL_SHIFT); |
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} else { |
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FUNC(hl_motion_444)(h, dest[0], dest[1], dest[2], |
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h->me.qpel_put, h->h264chroma.put_h264_chroma_pixels_tab, |
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h->me.qpel_avg, h->h264chroma.avg_h264_chroma_pixels_tab, |
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h->h264dsp.weight_h264_pixels_tab, |
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h->h264dsp.biweight_h264_pixels_tab); |
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} |
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for (p = 0; p < plane_count; p++) |
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hl_decode_mb_idct_luma(h, mb_type, 1, SIMPLE, transform_bypass, |
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PIXEL_SHIFT, block_offset, linesize, |
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dest[p], p); |
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if (h->cbp || IS_INTRA(mb_type)) { |
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h->dsp.clear_blocks(h->mb); |
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h->dsp.clear_blocks(h->mb + (24 * 16 << PIXEL_SHIFT)); |
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} |
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} |
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} |
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#endif
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