diff options
author | Michael Niedermayer <michaelni@gmx.at> | 2014-03-24 03:46:20 +0400 |
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committer | Michael Niedermayer <michaelni@gmx.at> | 2014-03-24 03:46:20 +0400 |
commit | 0626211b561f299971a96b7bd1ee6f8a6d6735c8 (patch) | |
tree | a68cc87fa123e1f5e488fbbb6dbc68518088ed73 /libavcodec/h264_mb.c | |
parent | 3bf5c05925b53a02e59fd8f74df8947731411216 (diff) | |
parent | e9a77f4bc084e5174baba3a8bc869ce4d102c4f0 (diff) |
Merge commit 'e9a77f4bc084e5174baba3a8bc869ce4d102c4f0'
* commit 'e9a77f4bc084e5174baba3a8bc869ce4d102c4f0':
h264: move macroblock decoding into its own file
Conflicts:
libavcodec/Makefile
libavcodec/h264.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavcodec/h264_mb.c')
-rw-r--r-- | libavcodec/h264_mb.c | 820 |
1 files changed, 820 insertions, 0 deletions
diff --git a/libavcodec/h264_mb.c b/libavcodec/h264_mb.c new file mode 100644 index 0000000000..ff902beef4 --- /dev/null +++ b/libavcodec/h264_mb.c @@ -0,0 +1,820 @@ +/* + * 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 + */ + +/** + * @file + * H.264 / AVC / MPEG4 part10 macroblock decoding + */ + +#include <stdint.h> + +#include "config.h" + +#include "libavutil/common.h" +#include "libavutil/intreadwrite.h" +#include "avcodec.h" +#include "h264.h" +#include "svq3.h" +#include "thread.h" + +static inline int get_lowest_part_list_y(H264Context *h, H264Picture *pic, int n, + int height, int y_offset, int list) +{ + int raw_my = h->mv_cache[list][scan8[n]][1]; + int filter_height_down = (raw_my & 3) ? 3 : 0; + int full_my = (raw_my >> 2) + y_offset; + int bottom = full_my + filter_height_down + height; + + av_assert2(height >= 0); + + return FFMAX(0, bottom); +} + +static inline void get_lowest_part_y(H264Context *h, int refs[2][48], int n, + int height, int y_offset, int list0, + int list1, int *nrefs) +{ + int my; + + y_offset += 16 * (h->mb_y >> MB_FIELD(h)); + + if (list0) { + int ref_n = h->ref_cache[0][scan8[n]]; + H264Picture *ref = &h->ref_list[0][ref_n]; + + // Error resilience puts the current picture in the ref list. + // Don't try to wait on these as it will cause a deadlock. + // Fields can wait on each other, though. + if (ref->tf.progress->data != h->cur_pic.tf.progress->data || + (ref->reference & 3) != h->picture_structure) { + my = get_lowest_part_list_y(h, ref, n, height, y_offset, 0); + if (refs[0][ref_n] < 0) + nrefs[0] += 1; + refs[0][ref_n] = FFMAX(refs[0][ref_n], my); + } + } + + if (list1) { + int ref_n = h->ref_cache[1][scan8[n]]; + H264Picture *ref = &h->ref_list[1][ref_n]; + + if (ref->tf.progress->data != h->cur_pic.tf.progress->data || + (ref->reference & 3) != h->picture_structure) { + my = get_lowest_part_list_y(h, ref, n, height, y_offset, 1); + if (refs[1][ref_n] < 0) + nrefs[1] += 1; + refs[1][ref_n] = FFMAX(refs[1][ref_n], my); + } + } +} + +/** + * Wait until all reference frames are available for MC operations. + * + * @param h the H264 context + */ +static void await_references(H264Context *h) +{ + const int mb_xy = h->mb_xy; + const int mb_type = h->cur_pic.mb_type[mb_xy]; + int refs[2][48]; + int nrefs[2] = { 0 }; + int ref, list; + + memset(refs, -1, sizeof(refs)); + + if (IS_16X16(mb_type)) { + get_lowest_part_y(h, refs, 0, 16, 0, + IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1), nrefs); + } else if (IS_16X8(mb_type)) { + get_lowest_part_y(h, refs, 0, 8, 0, + IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1), nrefs); + get_lowest_part_y(h, refs, 8, 8, 8, + IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1), nrefs); + } else if (IS_8X16(mb_type)) { + get_lowest_part_y(h, refs, 0, 16, 0, + IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1), nrefs); + get_lowest_part_y(h, refs, 4, 16, 0, + IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1), nrefs); + } else { + int i; + + av_assert2(IS_8X8(mb_type)); + + for (i = 0; i < 4; i++) { + const int sub_mb_type = h->sub_mb_type[i]; + const int n = 4 * i; + int y_offset = (i & 2) << 2; + + if (IS_SUB_8X8(sub_mb_type)) { + get_lowest_part_y(h, refs, n, 8, y_offset, + IS_DIR(sub_mb_type, 0, 0), + IS_DIR(sub_mb_type, 0, 1), + nrefs); + } else if (IS_SUB_8X4(sub_mb_type)) { + get_lowest_part_y(h, refs, n, 4, y_offset, + IS_DIR(sub_mb_type, 0, 0), + IS_DIR(sub_mb_type, 0, 1), + nrefs); + get_lowest_part_y(h, refs, n + 2, 4, y_offset + 4, + IS_DIR(sub_mb_type, 0, 0), + IS_DIR(sub_mb_type, 0, 1), + nrefs); + } else if (IS_SUB_4X8(sub_mb_type)) { + get_lowest_part_y(h, refs, n, 8, y_offset, + IS_DIR(sub_mb_type, 0, 0), + IS_DIR(sub_mb_type, 0, 1), + nrefs); + get_lowest_part_y(h, refs, n + 1, 8, y_offset, + IS_DIR(sub_mb_type, 0, 0), + IS_DIR(sub_mb_type, 0, 1), + nrefs); + } else { + int j; + av_assert2(IS_SUB_4X4(sub_mb_type)); + for (j = 0; j < 4; j++) { + int sub_y_offset = y_offset + 2 * (j & 2); + get_lowest_part_y(h, refs, n + j, 4, sub_y_offset, + IS_DIR(sub_mb_type, 0, 0), + IS_DIR(sub_mb_type, 0, 1), + nrefs); + } + } + } + } + + for (list = h->list_count - 1; list >= 0; list--) + for (ref = 0; ref < 48 && nrefs[list]; ref++) { + int row = refs[list][ref]; + if (row >= 0) { + H264Picture *ref_pic = &h->ref_list[list][ref]; + int ref_field = ref_pic->reference - 1; + int ref_field_picture = ref_pic->field_picture; + int pic_height = 16 * h->mb_height >> ref_field_picture; + + row <<= MB_MBAFF(h); + nrefs[list]--; + + if (!FIELD_PICTURE(h) && ref_field_picture) { // frame referencing two fields + ff_thread_await_progress(&ref_pic->tf, + FFMIN((row >> 1) - !(row & 1), + pic_height - 1), + 1); + ff_thread_await_progress(&ref_pic->tf, + FFMIN((row >> 1), pic_height - 1), + 0); + } else if (FIELD_PICTURE(h) && !ref_field_picture) { // field referencing one field of a frame + ff_thread_await_progress(&ref_pic->tf, + FFMIN(row * 2 + ref_field, + pic_height - 1), + 0); + } else if (FIELD_PICTURE(h)) { + ff_thread_await_progress(&ref_pic->tf, + FFMIN(row, pic_height - 1), + ref_field); + } else { + ff_thread_await_progress(&ref_pic->tf, + FFMIN(row, pic_height - 1), + 0); + } + } + } +} + +static av_always_inline void mc_dir_part(H264Context *h, H264Picture *pic, + int n, int square, int height, + int delta, int list, + uint8_t *dest_y, uint8_t *dest_cb, + uint8_t *dest_cr, + int src_x_offset, int src_y_offset, + qpel_mc_func *qpix_op, + h264_chroma_mc_func chroma_op, + int pixel_shift, int chroma_idc) +{ + const int mx = h->mv_cache[list][scan8[n]][0] + src_x_offset * 8; + int my = h->mv_cache[list][scan8[n]][1] + src_y_offset * 8; + const int luma_xy = (mx & 3) + ((my & 3) << 2); + ptrdiff_t offset = ((mx >> 2) << pixel_shift) + (my >> 2) * h->mb_linesize; + uint8_t *src_y = pic->f.data[0] + offset; + uint8_t *src_cb, *src_cr; + int extra_width = 0; + int extra_height = 0; + int emu = 0; + const int full_mx = mx >> 2; + const int full_my = my >> 2; + const int pic_width = 16 * h->mb_width; + const int pic_height = 16 * h->mb_height >> MB_FIELD(h); + int ysh; + + if (mx & 7) + extra_width -= 3; + if (my & 7) + extra_height -= 3; + + if (full_mx < 0 - extra_width || + full_my < 0 - extra_height || + full_mx + 16 /*FIXME*/ > pic_width + extra_width || + full_my + 16 /*FIXME*/ > pic_height + extra_height) { + h->vdsp.emulated_edge_mc(h->edge_emu_buffer, + src_y - (2 << pixel_shift) - 2 * h->mb_linesize, + h->mb_linesize, h->mb_linesize, + 16 + 5, 16 + 5 /*FIXME*/, full_mx - 2, + full_my - 2, pic_width, pic_height); + src_y = h->edge_emu_buffer + (2 << pixel_shift) + 2 * h->mb_linesize; + emu = 1; + } + + qpix_op[luma_xy](dest_y, src_y, h->mb_linesize); // FIXME try variable height perhaps? + if (!square) + qpix_op[luma_xy](dest_y + delta, src_y + delta, h->mb_linesize); + + if (CONFIG_GRAY && h->flags & CODEC_FLAG_GRAY) + return; + + if (chroma_idc == 3 /* yuv444 */) { + src_cb = pic->f.data[1] + offset; + if (emu) { + h->vdsp.emulated_edge_mc(h->edge_emu_buffer, + src_cb - (2 << pixel_shift) - 2 * h->mb_linesize, + h->mb_linesize, h->mb_linesize, + 16 + 5, 16 + 5 /*FIXME*/, + full_mx - 2, full_my - 2, + pic_width, pic_height); + src_cb = h->edge_emu_buffer + (2 << pixel_shift) + 2 * h->mb_linesize; + } + qpix_op[luma_xy](dest_cb, src_cb, h->mb_linesize); // FIXME try variable height perhaps? + if (!square) + qpix_op[luma_xy](dest_cb + delta, src_cb + delta, h->mb_linesize); + + src_cr = pic->f.data[2] + offset; + if (emu) { + h->vdsp.emulated_edge_mc(h->edge_emu_buffer, + src_cr - (2 << pixel_shift) - 2 * h->mb_linesize, + h->mb_linesize, h->mb_linesize, + 16 + 5, 16 + 5 /*FIXME*/, + full_mx - 2, full_my - 2, + pic_width, pic_height); + src_cr = h->edge_emu_buffer + (2 << pixel_shift) + 2 * h->mb_linesize; + } + qpix_op[luma_xy](dest_cr, src_cr, h->mb_linesize); // FIXME try variable height perhaps? + if (!square) + qpix_op[luma_xy](dest_cr + delta, src_cr + delta, h->mb_linesize); + return; + } + + ysh = 3 - (chroma_idc == 2 /* yuv422 */); + if (chroma_idc == 1 /* yuv420 */ && MB_FIELD(h)) { + // chroma offset when predicting from a field of opposite parity + my += 2 * ((h->mb_y & 1) - (pic->reference - 1)); + emu |= (my >> 3) < 0 || (my >> 3) + 8 >= (pic_height >> 1); + } + + src_cb = pic->f.data[1] + ((mx >> 3) << pixel_shift) + + (my >> ysh) * h->mb_uvlinesize; + src_cr = pic->f.data[2] + ((mx >> 3) << pixel_shift) + + (my >> ysh) * h->mb_uvlinesize; + + if (emu) { + h->vdsp.emulated_edge_mc(h->edge_emu_buffer, src_cb, + h->mb_uvlinesize, h->mb_uvlinesize, + 9, 8 * chroma_idc + 1, (mx >> 3), (my >> ysh), + pic_width >> 1, pic_height >> (chroma_idc == 1 /* yuv420 */)); + src_cb = h->edge_emu_buffer; + } + chroma_op(dest_cb, src_cb, h->mb_uvlinesize, + height >> (chroma_idc == 1 /* yuv420 */), + mx & 7, (my << (chroma_idc == 2 /* yuv422 */)) & 7); + + if (emu) { + h->vdsp.emulated_edge_mc(h->edge_emu_buffer, src_cr, + h->mb_uvlinesize, h->mb_uvlinesize, + 9, 8 * chroma_idc + 1, (mx >> 3), (my >> ysh), + pic_width >> 1, pic_height >> (chroma_idc == 1 /* yuv420 */)); + src_cr = h->edge_emu_buffer; + } + chroma_op(dest_cr, src_cr, h->mb_uvlinesize, height >> (chroma_idc == 1 /* yuv420 */), + mx & 7, (my << (chroma_idc == 2 /* yuv422 */)) & 7); +} + +static av_always_inline void mc_part_std(H264Context *h, int n, int square, + int height, int delta, + uint8_t *dest_y, uint8_t *dest_cb, + uint8_t *dest_cr, + int x_offset, int y_offset, + qpel_mc_func *qpix_put, + h264_chroma_mc_func chroma_put, + qpel_mc_func *qpix_avg, + h264_chroma_mc_func chroma_avg, + int list0, int list1, + int pixel_shift, int chroma_idc) +{ + qpel_mc_func *qpix_op = qpix_put; + h264_chroma_mc_func chroma_op = chroma_put; + + dest_y += (2 * x_offset << pixel_shift) + 2 * y_offset * h->mb_linesize; + if (chroma_idc == 3 /* yuv444 */) { + dest_cb += (2 * x_offset << pixel_shift) + 2 * y_offset * h->mb_linesize; + dest_cr += (2 * x_offset << pixel_shift) + 2 * y_offset * h->mb_linesize; + } else if (chroma_idc == 2 /* yuv422 */) { + dest_cb += (x_offset << pixel_shift) + 2 * y_offset * h->mb_uvlinesize; + dest_cr += (x_offset << pixel_shift) + 2 * y_offset * h->mb_uvlinesize; + } else { /* yuv420 */ + dest_cb += (x_offset << pixel_shift) + y_offset * h->mb_uvlinesize; + dest_cr += (x_offset << pixel_shift) + y_offset * h->mb_uvlinesize; + } + x_offset += 8 * h->mb_x; + y_offset += 8 * (h->mb_y >> MB_FIELD(h)); + + if (list0) { + H264Picture *ref = &h->ref_list[0][h->ref_cache[0][scan8[n]]]; + mc_dir_part(h, ref, n, square, height, delta, 0, + dest_y, dest_cb, dest_cr, x_offset, y_offset, + qpix_op, chroma_op, pixel_shift, chroma_idc); + + qpix_op = qpix_avg; + chroma_op = chroma_avg; + } + + if (list1) { + H264Picture *ref = &h->ref_list[1][h->ref_cache[1][scan8[n]]]; + mc_dir_part(h, ref, n, square, height, delta, 1, + dest_y, dest_cb, dest_cr, x_offset, y_offset, + qpix_op, chroma_op, pixel_shift, chroma_idc); + } +} + +static av_always_inline void mc_part_weighted(H264Context *h, int n, int square, + int height, int delta, + uint8_t *dest_y, uint8_t *dest_cb, + uint8_t *dest_cr, + int x_offset, int y_offset, + qpel_mc_func *qpix_put, + h264_chroma_mc_func chroma_put, + h264_weight_func luma_weight_op, + h264_weight_func chroma_weight_op, + h264_biweight_func luma_weight_avg, + h264_biweight_func chroma_weight_avg, + int list0, int list1, + int pixel_shift, int chroma_idc) +{ + int chroma_height; + + dest_y += (2 * x_offset << pixel_shift) + 2 * y_offset * h->mb_linesize; + if (chroma_idc == 3 /* yuv444 */) { + chroma_height = height; + chroma_weight_avg = luma_weight_avg; + chroma_weight_op = luma_weight_op; + dest_cb += (2 * x_offset << pixel_shift) + 2 * y_offset * h->mb_linesize; + dest_cr += (2 * x_offset << pixel_shift) + 2 * y_offset * h->mb_linesize; + } else if (chroma_idc == 2 /* yuv422 */) { + chroma_height = height; + dest_cb += (x_offset << pixel_shift) + 2 * y_offset * h->mb_uvlinesize; + dest_cr += (x_offset << pixel_shift) + 2 * y_offset * h->mb_uvlinesize; + } else { /* yuv420 */ + chroma_height = height >> 1; + dest_cb += (x_offset << pixel_shift) + y_offset * h->mb_uvlinesize; + dest_cr += (x_offset << pixel_shift) + y_offset * h->mb_uvlinesize; + } + x_offset += 8 * h->mb_x; + y_offset += 8 * (h->mb_y >> MB_FIELD(h)); + + if (list0 && list1) { + /* don't optimize for luma-only case, since B-frames usually + * use implicit weights => chroma too. */ + uint8_t *tmp_cb = h->bipred_scratchpad; + uint8_t *tmp_cr = h->bipred_scratchpad + (16 << pixel_shift); + uint8_t *tmp_y = h->bipred_scratchpad + 16 * h->mb_uvlinesize; + int refn0 = h->ref_cache[0][scan8[n]]; + int refn1 = h->ref_cache[1][scan8[n]]; + + mc_dir_part(h, &h->ref_list[0][refn0], n, square, height, delta, 0, + dest_y, dest_cb, dest_cr, + x_offset, y_offset, qpix_put, chroma_put, + pixel_shift, chroma_idc); + mc_dir_part(h, &h->ref_list[1][refn1], n, square, height, delta, 1, + tmp_y, tmp_cb, tmp_cr, + x_offset, y_offset, qpix_put, chroma_put, + pixel_shift, chroma_idc); + + if (h->use_weight == 2) { + int weight0 = h->implicit_weight[refn0][refn1][h->mb_y & 1]; + int weight1 = 64 - weight0; + luma_weight_avg(dest_y, tmp_y, h->mb_linesize, + height, 5, weight0, weight1, 0); + chroma_weight_avg(dest_cb, tmp_cb, h->mb_uvlinesize, + chroma_height, 5, weight0, weight1, 0); + chroma_weight_avg(dest_cr, tmp_cr, h->mb_uvlinesize, + chroma_height, 5, weight0, weight1, 0); + } else { + luma_weight_avg(dest_y, tmp_y, h->mb_linesize, height, + h->luma_log2_weight_denom, + h->luma_weight[refn0][0][0], + h->luma_weight[refn1][1][0], + h->luma_weight[refn0][0][1] + + h->luma_weight[refn1][1][1]); + chroma_weight_avg(dest_cb, tmp_cb, h->mb_uvlinesize, chroma_height, + h->chroma_log2_weight_denom, + h->chroma_weight[refn0][0][0][0], + h->chroma_weight[refn1][1][0][0], + h->chroma_weight[refn0][0][0][1] + + h->chroma_weight[refn1][1][0][1]); + chroma_weight_avg(dest_cr, tmp_cr, h->mb_uvlinesize, chroma_height, + h->chroma_log2_weight_denom, + h->chroma_weight[refn0][0][1][0], + h->chroma_weight[refn1][1][1][0], + h->chroma_weight[refn0][0][1][1] + + h->chroma_weight[refn1][1][1][1]); + } + } else { + int list = list1 ? 1 : 0; + int refn = h->ref_cache[list][scan8[n]]; + H264Picture *ref = &h->ref_list[list][refn]; + mc_dir_part(h, ref, n, square, height, delta, list, + dest_y, dest_cb, dest_cr, x_offset, y_offset, + qpix_put, chroma_put, pixel_shift, chroma_idc); + + luma_weight_op(dest_y, h->mb_linesize, height, + h->luma_log2_weight_denom, + h->luma_weight[refn][list][0], + h->luma_weight[refn][list][1]); + if (h->use_weight_chroma) { + chroma_weight_op(dest_cb, h->mb_uvlinesize, chroma_height, + h->chroma_log2_weight_denom, + h->chroma_weight[refn][list][0][0], + h->chroma_weight[refn][list][0][1]); + chroma_weight_op(dest_cr, h->mb_uvlinesize, chroma_height, + h->chroma_log2_weight_denom, + h->chroma_weight[refn][list][1][0], + h->chroma_weight[refn][list][1][1]); + } + } +} + +static av_always_inline void prefetch_motion(H264Context *h, int list, + int pixel_shift, int chroma_idc) +{ + /* fetch pixels for estimated mv 4 macroblocks ahead + * optimized for 64byte cache lines */ + const int refn = h->ref_cache[list][scan8[0]]; + if (refn >= 0) { + const int mx = (h->mv_cache[list][scan8[0]][0] >> 2) + 16 * h->mb_x + 8; + const int my = (h->mv_cache[list][scan8[0]][1] >> 2) + 16 * h->mb_y; + uint8_t **src = h->ref_list[list][refn].f.data; + int off = (mx << pixel_shift) + + (my + (h->mb_x & 3) * 4) * h->mb_linesize + + (64 << pixel_shift); + h->vdsp.prefetch(src[0] + off, h->linesize, 4); + if (chroma_idc == 3 /* yuv444 */) { + h->vdsp.prefetch(src[1] + off, h->linesize, 4); + h->vdsp.prefetch(src[2] + off, h->linesize, 4); + } else { + off= (((mx>>1)+64)<<pixel_shift) + ((my>>1) + (h->mb_x&7))*h->uvlinesize; + h->vdsp.prefetch(src[1] + off, src[2] - src[1], 2); + } + } +} + +static av_always_inline void xchg_mb_border(H264Context *h, uint8_t *src_y, + uint8_t *src_cb, uint8_t *src_cr, + int linesize, int uvlinesize, + int xchg, int chroma444, + int simple, int pixel_shift) +{ + int deblock_topleft; + int deblock_top; + int top_idx = 1; + uint8_t *top_border_m1; + uint8_t *top_border; + + if (!simple && FRAME_MBAFF(h)) { + if (h->mb_y & 1) { + if (!MB_MBAFF(h)) + return; + } else { + top_idx = MB_MBAFF(h) ? 0 : 1; + } + } + + if (h->deblocking_filter == 2) { + deblock_topleft = h->slice_table[h->mb_xy - 1 - h->mb_stride] == h->slice_num; + deblock_top = h->top_type; + } else { + deblock_topleft = (h->mb_x > 0); + deblock_top = (h->mb_y > !!MB_FIELD(h)); + } + + src_y -= linesize + 1 + pixel_shift; + src_cb -= uvlinesize + 1 + pixel_shift; + src_cr -= uvlinesize + 1 + pixel_shift; + + top_border_m1 = h->top_borders[top_idx][h->mb_x - 1]; + top_border = h->top_borders[top_idx][h->mb_x]; + +#define XCHG(a, b, xchg) \ + if (pixel_shift) { \ + if (xchg) { \ + AV_SWAP64(b + 0, a + 0); \ + AV_SWAP64(b + 8, a + 8); \ + } else { \ + AV_COPY128(b, a); \ + } \ + } else if (xchg) \ + AV_SWAP64(b, a); \ + else \ + AV_COPY64(b, a); + + if (deblock_top) { + if (deblock_topleft) { + XCHG(top_border_m1 + (8 << pixel_shift), + src_y - (7 << pixel_shift), 1); + } + XCHG(top_border + (0 << pixel_shift), src_y + (1 << pixel_shift), xchg); + XCHG(top_border + (8 << pixel_shift), src_y + (9 << pixel_shift), 1); + if (h->mb_x + 1 < h->mb_width) { + XCHG(h->top_borders[top_idx][h->mb_x + 1], + src_y + (17 << pixel_shift), 1); + } + if (simple || !CONFIG_GRAY || !(h->flags & CODEC_FLAG_GRAY)) { + if (chroma444) { + if (deblock_topleft) { + XCHG(top_border_m1 + (24 << pixel_shift), src_cb - (7 << pixel_shift), 1); + XCHG(top_border_m1 + (40 << pixel_shift), src_cr - (7 << pixel_shift), 1); + } + XCHG(top_border + (16 << pixel_shift), src_cb + (1 << pixel_shift), xchg); + XCHG(top_border + (24 << pixel_shift), src_cb + (9 << pixel_shift), 1); + XCHG(top_border + (32 << pixel_shift), src_cr + (1 << pixel_shift), xchg); + XCHG(top_border + (40 << pixel_shift), src_cr + (9 << pixel_shift), 1); + if (h->mb_x + 1 < h->mb_width) { + XCHG(h->top_borders[top_idx][h->mb_x + 1] + (16 << pixel_shift), src_cb + (17 << pixel_shift), 1); + XCHG(h->top_borders[top_idx][h->mb_x + 1] + (32 << pixel_shift), src_cr + (17 << pixel_shift), 1); + } + } else { + if (deblock_topleft) { + XCHG(top_border_m1 + (16 << pixel_shift), src_cb - (7 << pixel_shift), 1); + XCHG(top_border_m1 + (24 << pixel_shift), src_cr - (7 << pixel_shift), 1); + } + XCHG(top_border + (16 << pixel_shift), src_cb + 1 + pixel_shift, 1); + XCHG(top_border + (24 << pixel_shift), src_cr + 1 + pixel_shift, 1); + } + } + } +} + +static av_always_inline int dctcoef_get(int16_t *mb, int high_bit_depth, + int index) +{ + if (high_bit_depth) { + return AV_RN32A(((int32_t *)mb) + index); + } else + return AV_RN16A(mb + index); +} + +static av_always_inline void dctcoef_set(int16_t *mb, int high_bit_depth, + int index, int value) +{ + if (high_bit_depth) { + AV_WN32A(((int32_t *)mb) + index, value); + } else + AV_WN16A(mb + index, value); +} + +static av_always_inline void hl_decode_mb_predict_luma(H264Context *h, + int mb_type, int is_h264, + int simple, + int transform_bypass, + int pixel_shift, + int *block_offset, + int linesize, + uint8_t *dest_y, int p) +{ + void (*idct_add)(uint8_t *dst, int16_t *block, int stride); + void (*idct_dc_add)(uint8_t *dst, int16_t *block, int stride); + int i; + int qscale = p == 0 ? h->qscale : h->chroma_qp[p - 1]; + block_offset += 16 * p; + if (IS_INTRA4x4(mb_type)) { + if (IS_8x8DCT(mb_type)) { + if (transform_bypass) { + idct_dc_add = + idct_add = h->h264dsp.h264_add_pixels8_clear; + } else { + idct_dc_add = h->h264dsp.h264_idct8_dc_add; + idct_add = h->h264dsp.h264_idct8_add; + } + for (i = 0; i < 16; i += 4) { + uint8_t *const ptr = dest_y + block_offset[i]; + const int dir = h->intra4x4_pred_mode_cache[scan8[i]]; + if (transform_bypass && h->sps.profile_idc == 244 && dir <= 1) { + if (h->x264_build != -1) { + h->hpc.pred8x8l_add[dir](ptr, h->mb + (i * 16 + p * 256 << pixel_shift), linesize); + } else + h->hpc.pred8x8l_filter_add[dir](ptr, h->mb + (i * 16 + p * 256 << pixel_shift), + (h-> topleft_samples_available << i) & 0x8000, + (h->topright_samples_available << i) & 0x4000, linesize); + } else { + const int nnz = h->non_zero_count_cache[scan8[i + p * 16]]; + h->hpc.pred8x8l[dir](ptr, (h->topleft_samples_available << i) & 0x8000, + (h->topright_samples_available << i) & 0x4000, linesize); + if (nnz) { + if (nnz == 1 && dctcoef_get(h->mb, pixel_shift, i * 16 + p * 256)) + idct_dc_add(ptr, h->mb + (i * 16 + p * 256 << pixel_shift), linesize); + else + idct_add(ptr, h->mb + (i * 16 + p * 256 << pixel_shift), linesize); + } + } + } + } else { + if (transform_bypass) { + idct_dc_add = + idct_add = h->h264dsp.h264_add_pixels4_clear; + } else { + idct_dc_add = h->h264dsp.h264_idct_dc_add; + idct_add = h->h264dsp.h264_idct_add; + } + for (i = 0; i < 16; i++) { + uint8_t *const ptr = dest_y + block_offset[i]; + const int dir = h->intra4x4_pred_mode_cache[scan8[i]]; + + if (transform_bypass && h->sps.profile_idc == 244 && dir <= 1) { + h->hpc.pred4x4_add[dir](ptr, h->mb + (i * 16 + p * 256 << pixel_shift), linesize); + } else { + uint8_t *topright; + int nnz, tr; + uint64_t tr_high; + if (dir == DIAG_DOWN_LEFT_PRED || dir == VERT_LEFT_PRED) { + const int topright_avail = (h->topright_samples_available << i) & 0x8000; + av_assert2(h->mb_y || linesize <= block_offset[i]); + if (!topright_avail) { + if (pixel_shift) { + tr_high = ((uint16_t *)ptr)[3 - linesize / 2] * 0x0001000100010001ULL; + topright = (uint8_t *)&tr_high; + } else { + tr = ptr[3 - linesize] * 0x01010101u; + topright = (uint8_t *)&tr; + } + } else + topright = ptr + (4 << pixel_shift) - linesize; + } else + topright = NULL; + + h->hpc.pred4x4[dir](ptr, topright, linesize); + nnz = h->non_zero_count_cache[scan8[i + p * 16]]; + if (nnz) { + if (is_h264) { + if (nnz == 1 && dctcoef_get(h->mb, pixel_shift, i * 16 + p * 256)) + idct_dc_add(ptr, h->mb + (i * 16 + p * 256 << pixel_shift), linesize); + else + idct_add(ptr, h->mb + (i * 16 + p * 256 << pixel_shift), linesize); + } else if (CONFIG_SVQ3_DECODER) + ff_svq3_add_idct_c(ptr, h->mb + i * 16 + p * 256, linesize, qscale, 0); + } + } + } + } + } else { + h->hpc.pred16x16[h->intra16x16_pred_mode](dest_y, linesize); + if (is_h264) { + if (h->non_zero_count_cache[scan8[LUMA_DC_BLOCK_INDEX + p]]) { + if (!transform_bypass) + h->h264dsp.h264_luma_dc_dequant_idct(h->mb + (p * 256 << pixel_shift), + h->mb_luma_dc[p], + h->dequant4_coeff[p][qscale][0]); + else { + static const uint8_t dc_mapping[16] = { + 0 * 16, 1 * 16, 4 * 16, 5 * 16, + 2 * 16, 3 * 16, 6 * 16, 7 * 16, + 8 * 16, 9 * 16, 12 * 16, 13 * 16, + 10 * 16, 11 * 16, 14 * 16, 15 * 16 + }; + for (i = 0; i < 16; i++) + dctcoef_set(h->mb + (p * 256 << pixel_shift), + pixel_shift, dc_mapping[i], + dctcoef_get(h->mb_luma_dc[p], + pixel_shift, i)); + } + } + } else if (CONFIG_SVQ3_DECODER) + ff_svq3_luma_dc_dequant_idct_c(h->mb + p * 256, + h->mb_luma_dc[p], qscale); + } +} + +static av_always_inline void hl_decode_mb_idct_luma(H264Context *h, int mb_type, + int is_h264, int simple, + int transform_bypass, + int pixel_shift, + int *block_offset, + int linesize, + uint8_t *dest_y, int p) +{ + void (*idct_add)(uint8_t *dst, int16_t *block, int stride); + int i; + block_offset += 16 * p; + if (!IS_INTRA4x4(mb_type)) { + if (is_h264) { + if (IS_INTRA16x16(mb_type)) { + if (transform_bypass) { + if (h->sps.profile_idc == 244 && + (h->intra16x16_pred_mode == VERT_PRED8x8 || + h->intra16x16_pred_mode == HOR_PRED8x8)) { + h->hpc.pred16x16_add[h->intra16x16_pred_mode](dest_y, block_offset, + h->mb + (p * 256 << pixel_shift), + linesize); + } else { + for (i = 0; i < 16; i++) + if (h->non_zero_count_cache[scan8[i + p * 16]] || + dctcoef_get(h->mb, pixel_shift, i * 16 + p * 256)) + h->h264dsp.h264_add_pixels4_clear(dest_y + block_offset[i], + h->mb + (i * 16 + p * 256 << pixel_shift), + linesize); + } + } else { + h->h264dsp.h264_idct_add16intra(dest_y, block_offset, + h->mb + (p * 256 << pixel_shift), + linesize, + h->non_zero_count_cache + p * 5 * 8); + } + } else if (h->cbp & 15) { + if (transform_bypass) { + const int di = IS_8x8DCT(mb_type) ? 4 : 1; + idct_add = IS_8x8DCT(mb_type) ? h->h264dsp.h264_add_pixels8_clear + : h->h264dsp.h264_add_pixels4_clear; + for (i = 0; i < 16; i += di) + if (h->non_zero_count_cache[scan8[i + p * 16]]) + idct_add(dest_y + block_offset[i], + h->mb + (i * 16 + p * 256 << pixel_shift), + linesize); + } else { + if (IS_8x8DCT(mb_type)) + h->h264dsp.h264_idct8_add4(dest_y, block_offset, + h->mb + (p * 256 << pixel_shift), + linesize, + h->non_zero_count_cache + p * 5 * 8); + else + h->h264dsp.h264_idct_add16(dest_y, block_offset, + h->mb + (p * 256 << pixel_shift), + linesize, + h->non_zero_count_cache + p * 5 * 8); + } + } + } else if (CONFIG_SVQ3_DECODER) { + for (i = 0; i < 16; i++) + if (h->non_zero_count_cache[scan8[i + p * 16]] || h->mb[i * 16 + p * 256]) { + // FIXME benchmark weird rule, & below + uint8_t *const ptr = dest_y + block_offset[i]; + ff_svq3_add_idct_c(ptr, h->mb + i * 16 + p * 256, linesize, + h->qscale, IS_INTRA(mb_type) ? 1 : 0); + } + } + } +} + +#define BITS 8 +#define SIMPLE 1 +#include "h264_mb_template.c" + +#undef BITS +#define BITS 16 +#include "h264_mb_template.c" + +#undef SIMPLE +#define SIMPLE 0 +#include "h264_mb_template.c" + +void ff_h264_hl_decode_mb(H264Context *h) +{ + const int mb_xy = h->mb_xy; + const int mb_type = h->cur_pic.mb_type[mb_xy]; + int is_complex = CONFIG_SMALL || h->is_complex || + IS_INTRA_PCM(mb_type) || h->qscale == 0; + + if (CHROMA444(h)) { + if (is_complex || h->pixel_shift) + hl_decode_mb_444_complex(h); + else + hl_decode_mb_444_simple_8(h); + } else if (is_complex) { + hl_decode_mb_complex(h); + } else if (h->pixel_shift) { + hl_decode_mb_simple_16(h); + } else + hl_decode_mb_simple_8(h); +} |