GCC Code Coverage Report
Directory: ../../../ffmpeg/ Exec Total Coverage
File: src/libavcodec/h264_mb_template.c Lines: 139 196 70.9 %
Date: 2020-04-02 13:49:07 Branches: 84 144 58.3 %

Line Branch Exec Source
1
/*
2
 * H.26L/H.264/AVC/JVT/14496-10/... decoder
3
 * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
4
 *
5
 * This file is part of FFmpeg.
6
 *
7
 * FFmpeg is free software; you can redistribute it and/or
8
 * modify it under the terms of the GNU Lesser General Public
9
 * License as published by the Free Software Foundation; either
10
 * version 2.1 of the License, or (at your option) any later version.
11
 *
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 * FFmpeg is distributed in the hope that it will be useful,
13
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15
 * Lesser General Public License for more details.
16
 *
17
 * You should have received a copy of the GNU Lesser General Public
18
 * License along with FFmpeg; if not, write to the Free Software
19
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20
 */
21
22
#undef FUNC
23
#undef PIXEL_SHIFT
24
25
#if SIMPLE
26
#   define FUNC(n) AV_JOIN(n ## _simple_, BITS)
27
#   define PIXEL_SHIFT (BITS >> 4)
28
#else
29
#   define FUNC(n) n ## _complex
30
#   define PIXEL_SHIFT h->pixel_shift
31
#endif
32
33
#undef  CHROMA_IDC
34
#define CHROMA_IDC 1
35
#include "h264_mc_template.c"
36
37
#undef  CHROMA_IDC
38
#define CHROMA_IDC 2
39
#include "h264_mc_template.c"
40
41
25419774
static av_noinline void FUNC(hl_decode_mb)(const H264Context *h, H264SliceContext *sl)
42
{
43
25419774
    const int mb_x    = sl->mb_x;
44
25419774
    const int mb_y    = sl->mb_y;
45
25419774
    const int mb_xy   = sl->mb_xy;
46
25419774
    const int mb_type = h->cur_pic.mb_type[mb_xy];
47
    uint8_t *dest_y, *dest_cb, *dest_cr;
48
    int linesize, uvlinesize /*dct_offset*/;
49
    int i, j;
50
25419774
    const int *block_offset = &h->block_offset[0];
51

25419774
    const int transform_bypass = !SIMPLE && (sl->qscale == 0 && h->ps.sps->transform_bypass);
52
    void (*idct_add)(uint8_t *dst, int16_t *block, int stride);
53
25419774
    const int block_h   = 16 >> h->chroma_y_shift;
54
25419774
    const int chroma422 = CHROMA422(h);
55
56
25419774
    dest_y  = h->cur_pic.f->data[0] + ((mb_x << PIXEL_SHIFT)     + mb_y * sl->linesize)  * 16;
57
25419774
    dest_cb = h->cur_pic.f->data[1] +  (mb_x << PIXEL_SHIFT) * 8 + mb_y * sl->uvlinesize * block_h;
58
25419774
    dest_cr = h->cur_pic.f->data[2] +  (mb_x << PIXEL_SHIFT) * 8 + mb_y * sl->uvlinesize * block_h;
59
60
25419774
    h->vdsp.prefetch(dest_y  + (sl->mb_x & 3) * 4 * sl->linesize   + (64 << PIXEL_SHIFT), sl->linesize,       4);
61
25419774
    h->vdsp.prefetch(dest_cb + (sl->mb_x & 7)     * sl->uvlinesize + (64 << PIXEL_SHIFT), dest_cr - dest_cb, 2);
62
63
25419774
    h->list_counts[mb_xy] = sl->list_count;
64
65
11670528
    if (!SIMPLE && MB_FIELD(sl)) {
66
8594862
        linesize     = sl->mb_linesize = sl->linesize * 2;
67
8594862
        uvlinesize   = sl->mb_uvlinesize = sl->uvlinesize * 2;
68
8594862
        block_offset = &h->block_offset[48];
69
8594862
        if (mb_y & 1) { // FIXME move out of this function?
70
4293346
            dest_y  -= sl->linesize * 15;
71
4293346
            dest_cb -= sl->uvlinesize * (block_h - 1);
72
4293346
            dest_cr -= sl->uvlinesize * (block_h - 1);
73
        }
74
8594862
        if (FRAME_MBAFF(h)) {
75
            int list;
76
2695932
            for (list = 0; list < sl->list_count; list++) {
77
1464448
                if (!USES_LIST(mb_type, list))
78
358592
                    continue;
79
1105856
                if (IS_16X16(mb_type)) {
80
514104
                    int8_t *ref = &sl->ref_cache[list][scan8[0]];
81
514104
                    fill_rectangle(ref, 4, 4, 8, (16 + *ref) ^ (sl->mb_y & 1), 1);
82
                } else {
83
2958760
                    for (i = 0; i < 16; i += 4) {
84
2367008
                        int ref = sl->ref_cache[list][scan8[i]];
85
2367008
                        if (ref >= 0)
86
2079166
                            fill_rectangle(&sl->ref_cache[list][scan8[i]], 2, 2,
87
2079166
                                           8, (16 + ref) ^ (sl->mb_y & 1), 1);
88
                    }
89
                }
90
            }
91
        }
92
    } else {
93
16824912
        linesize   = sl->mb_linesize   = sl->linesize;
94
16824912
        uvlinesize = sl->mb_uvlinesize = sl->uvlinesize;
95
        // dct_offset = s->linesize * 16;
96
    }
97
98
11670528
    if (!SIMPLE && IS_INTRA_PCM(mb_type)) {
99
46210
        const int bit_depth = h->ps.sps->bit_depth_luma;
100
46210
        if (PIXEL_SHIFT) {
101
            int j;
102
            GetBitContext gb;
103
            init_get_bits(&gb, sl->intra_pcm_ptr,
104
                          ff_h264_mb_sizes[h->ps.sps->chroma_format_idc] * bit_depth);
105
106
            for (i = 0; i < 16; i++) {
107
                uint16_t *tmp_y = (uint16_t *)(dest_y + i * linesize);
108
                for (j = 0; j < 16; j++)
109
                    tmp_y[j] = get_bits(&gb, bit_depth);
110
            }
111
            if (SIMPLE || !CONFIG_GRAY || !(h->flags & AV_CODEC_FLAG_GRAY)) {
112
                if (!h->ps.sps->chroma_format_idc) {
113
                    for (i = 0; i < block_h; i++) {
114
                        uint16_t *tmp_cb = (uint16_t *)(dest_cb + i * uvlinesize);
115
                        uint16_t *tmp_cr = (uint16_t *)(dest_cr + i * uvlinesize);
116
                        for (j = 0; j < 8; j++) {
117
                            tmp_cb[j] = tmp_cr[j] = 1 << (bit_depth - 1);
118
                        }
119
                    }
120
                } else {
121
                    for (i = 0; i < block_h; i++) {
122
                        uint16_t *tmp_cb = (uint16_t *)(dest_cb + i * uvlinesize);
123
                        for (j = 0; j < 8; j++)
124
                            tmp_cb[j] = get_bits(&gb, bit_depth);
125
                    }
126
                    for (i = 0; i < block_h; i++) {
127
                        uint16_t *tmp_cr = (uint16_t *)(dest_cr + i * uvlinesize);
128
                        for (j = 0; j < 8; j++)
129
                            tmp_cr[j] = get_bits(&gb, bit_depth);
130
                    }
131
                }
132
            }
133
        } else {
134
785570
            for (i = 0; i < 16; i++)
135
739360
                memcpy(dest_y + i * linesize, sl->intra_pcm_ptr + i * 16, 16);
136
            if (SIMPLE || !CONFIG_GRAY || !(h->flags & AV_CODEC_FLAG_GRAY)) {
137
46210
                if (!h->ps.sps->chroma_format_idc) {
138
                    for (i = 0; i < 8; i++) {
139
                        memset(dest_cb + i * uvlinesize, 1 << (bit_depth - 1), 8);
140
                        memset(dest_cr + i * uvlinesize, 1 << (bit_depth - 1), 8);
141
                    }
142
                } else {
143
46210
                    const uint8_t *src_cb = sl->intra_pcm_ptr + 256;
144
46210
                    const uint8_t *src_cr = sl->intra_pcm_ptr + 256 + block_h * 8;
145
415890
                    for (i = 0; i < block_h; i++) {
146
369680
                        memcpy(dest_cb + i * uvlinesize, src_cb + i * 8, 8);
147
369680
                        memcpy(dest_cr + i * uvlinesize, src_cr + i * 8, 8);
148
                    }
149
                }
150
            }
151
        }
152
    } else {
153
25373564
        if (IS_INTRA(mb_type)) {
154
7427392
            if (sl->deblocking_filter)
155
6186178
                xchg_mb_border(h, sl, dest_y, dest_cb, dest_cr, linesize,
156
                               uvlinesize, 1, 0, SIMPLE, PIXEL_SHIFT);
157
158
            if (SIMPLE || !CONFIG_GRAY || !(h->flags & AV_CODEC_FLAG_GRAY)) {
159
7427392
                h->hpc.pred8x8[sl->chroma_pred_mode](dest_cb, uvlinesize);
160
7427392
                h->hpc.pred8x8[sl->chroma_pred_mode](dest_cr, uvlinesize);
161
            }
162
163
7427392
            hl_decode_mb_predict_luma(h, sl, mb_type, SIMPLE,
164
                                      transform_bypass, PIXEL_SHIFT,
165
                                      block_offset, linesize, dest_y, 0);
166
167
7427392
            if (sl->deblocking_filter)
168
6186178
                xchg_mb_border(h, sl, dest_y, dest_cb, dest_cr, linesize,
169
                               uvlinesize, 0, 0, SIMPLE, PIXEL_SHIFT);
170
        } else {
171
17946172
            if (chroma422) {
172
114570
                FUNC(hl_motion_422)(h, sl, dest_y, dest_cb, dest_cr,
173
114570
                              h->h264qpel.put_h264_qpel_pixels_tab,
174
114570
                              h->h264chroma.put_h264_chroma_pixels_tab,
175
114570
                              h->h264qpel.avg_h264_qpel_pixels_tab,
176
114570
                              h->h264chroma.avg_h264_chroma_pixels_tab,
177
114570
                              h->h264dsp.weight_h264_pixels_tab,
178
114570
                              h->h264dsp.biweight_h264_pixels_tab);
179
            } else {
180
17831602
                FUNC(hl_motion_420)(h, sl, dest_y, dest_cb, dest_cr,
181
17831602
                              h->h264qpel.put_h264_qpel_pixels_tab,
182
17831602
                              h->h264chroma.put_h264_chroma_pixels_tab,
183
17831602
                              h->h264qpel.avg_h264_qpel_pixels_tab,
184
17831602
                              h->h264chroma.avg_h264_chroma_pixels_tab,
185
17831602
                              h->h264dsp.weight_h264_pixels_tab,
186
17831602
                              h->h264dsp.biweight_h264_pixels_tab);
187
            }
188
        }
189
190
25373564
        hl_decode_mb_idct_luma(h, sl, mb_type, SIMPLE, transform_bypass,
191
                               PIXEL_SHIFT, block_offset, linesize, dest_y, 0);
192
193
25373564
        if ((SIMPLE || !CONFIG_GRAY || !(h->flags & AV_CODEC_FLAG_GRAY)) &&
194
25373564
            (sl->cbp & 0x30)) {
195
9865582
            uint8_t *dest[2] = { dest_cb, dest_cr };
196
9865582
            if (transform_bypass) {
197

38362
                if (IS_INTRA(mb_type) && h->ps.sps->profile_idc == 244 &&
198
5624
                    (sl->chroma_pred_mode == VERT_PRED8x8 ||
199
3366
                     sl->chroma_pred_mode == HOR_PRED8x8)) {
200
5146
                    h->hpc.pred8x8_add[sl->chroma_pred_mode](dest[0],
201
                                                            block_offset + 16,
202
5146
                                                            sl->mb + (16 * 16 * 1 << PIXEL_SHIFT),
203
                                                            uvlinesize);
204
5146
                    h->hpc.pred8x8_add[sl->chroma_pred_mode](dest[1],
205
                                                            block_offset + 32,
206
5146
                                                            sl->mb + (16 * 16 * 2 << PIXEL_SHIFT),
207
                                                            uvlinesize);
208
                } else {
209
33216
                    idct_add = h->h264dsp.h264_add_pixels4_clear;
210
99648
                    for (j = 1; j < 3; j++) {
211
332160
                        for (i = j * 16; i < j * 16 + 4; i++)
212

332538
                            if (sl->non_zero_count_cache[scan8[i]] ||
213
66810
                                dctcoef_get(sl->mb, PIXEL_SHIFT, i * 16))
214
200348
                                idct_add(dest[j - 1] + block_offset[i],
215
200348
                                         sl->mb + (i * 16 << PIXEL_SHIFT),
216
                                         uvlinesize);
217
66432
                        if (chroma422) {
218
                            for (i = j * 16 + 4; i < j * 16 + 8; i++)
219
                                if (sl->non_zero_count_cache[scan8[i + 4]] ||
220
                                    dctcoef_get(sl->mb, PIXEL_SHIFT, i * 16))
221
                                    idct_add(dest[j - 1] + block_offset[i + 4],
222
                                             sl->mb + (i * 16 << PIXEL_SHIFT),
223
                                             uvlinesize);
224
                        }
225
                    }
226
                }
227
            } else {
228
                int qp[2];
229
9827220
                if (chroma422) {
230
1350636
                    qp[0] = sl->chroma_qp[0] + 3;
231
1350636
                    qp[1] = sl->chroma_qp[1] + 3;
232
                } else {
233
8476584
                    qp[0] = sl->chroma_qp[0];
234
8476584
                    qp[1] = sl->chroma_qp[1];
235
                }
236
9827220
                if (sl->non_zero_count_cache[scan8[CHROMA_DC_BLOCK_INDEX + 0]])
237
14411900
                    h->h264dsp.h264_chroma_dc_dequant_idct(sl->mb + (16 * 16 * 1 << PIXEL_SHIFT),
238
7205950
                                                           h->ps.pps->dequant4_coeff[IS_INTRA(mb_type) ? 1 : 4][qp[0]][0]);
239
9827220
                if (sl->non_zero_count_cache[scan8[CHROMA_DC_BLOCK_INDEX + 1]])
240
12449808
                    h->h264dsp.h264_chroma_dc_dequant_idct(sl->mb + (16 * 16 * 2 << PIXEL_SHIFT),
241
6224904
                                                           h->ps.pps->dequant4_coeff[IS_INTRA(mb_type) ? 2 : 5][qp[1]][0]);
242
9827220
                h->h264dsp.h264_idct_add8(dest, block_offset,
243
9827220
                                          sl->mb, uvlinesize,
244
9827220
                                          sl->non_zero_count_cache);
245
            }
246
        }
247
    }
248
25419774
}
249
250
#if !SIMPLE || BITS == 8
251
252
#undef  CHROMA_IDC
253
#define CHROMA_IDC 3
254
#include "h264_mc_template.c"
255
256
266276
static av_noinline void FUNC(hl_decode_mb_444)(const H264Context *h, H264SliceContext *sl)
257
{
258
266276
    const int mb_x    = sl->mb_x;
259
266276
    const int mb_y    = sl->mb_y;
260
266276
    const int mb_xy   = sl->mb_xy;
261
266276
    const int mb_type = h->cur_pic.mb_type[mb_xy];
262
    uint8_t *dest[3];
263
    int linesize;
264
    int i, j, p;
265
266276
    const int *block_offset = &h->block_offset[0];
266

266276
    const int transform_bypass = !SIMPLE && (sl->qscale == 0 && h->ps.sps->transform_bypass);
267
266276
    const int plane_count      = (SIMPLE || !CONFIG_GRAY || !(h->flags & AV_CODEC_FLAG_GRAY)) ? 3 : 1;
268
269
1065104
    for (p = 0; p < plane_count; p++) {
270
798828
        dest[p] = h->cur_pic.f->data[p] +
271
798828
                  ((mb_x << PIXEL_SHIFT) + mb_y * sl->linesize) * 16;
272
798828
        h->vdsp.prefetch(dest[p] + (sl->mb_x & 3) * 4 * sl->linesize + (64 << PIXEL_SHIFT),
273
                         sl->linesize, 4);
274
    }
275
276
266276
    h->list_counts[mb_xy] = sl->list_count;
277
278
227744
    if (!SIMPLE && MB_FIELD(sl)) {
279
        linesize     = sl->mb_linesize = sl->mb_uvlinesize = sl->linesize * 2;
280
        block_offset = &h->block_offset[48];
281
        if (mb_y & 1) // FIXME move out of this function?
282
            for (p = 0; p < 3; p++)
283
                dest[p] -= sl->linesize * 15;
284
        if (FRAME_MBAFF(h)) {
285
            int list;
286
            for (list = 0; list < sl->list_count; list++) {
287
                if (!USES_LIST(mb_type, list))
288
                    continue;
289
                if (IS_16X16(mb_type)) {
290
                    int8_t *ref = &sl->ref_cache[list][scan8[0]];
291
                    fill_rectangle(ref, 4, 4, 8, (16 + *ref) ^ (sl->mb_y & 1), 1);
292
                } else {
293
                    for (i = 0; i < 16; i += 4) {
294
                        int ref = sl->ref_cache[list][scan8[i]];
295
                        if (ref >= 0)
296
                            fill_rectangle(&sl->ref_cache[list][scan8[i]], 2, 2,
297
                                           8, (16 + ref) ^ (sl->mb_y & 1), 1);
298
                    }
299
                }
300
            }
301
        }
302
    } else {
303
266276
        linesize = sl->mb_linesize = sl->mb_uvlinesize = sl->linesize;
304
    }
305
306
227744
    if (!SIMPLE && IS_INTRA_PCM(mb_type)) {
307
        if (PIXEL_SHIFT) {
308
            const int bit_depth = h->ps.sps->bit_depth_luma;
309
            GetBitContext gb;
310
            init_get_bits(&gb, sl->intra_pcm_ptr, 768 * bit_depth);
311
312
            for (p = 0; p < plane_count; p++)
313
                for (i = 0; i < 16; i++) {
314
                    uint16_t *tmp = (uint16_t *)(dest[p] + i * linesize);
315
                    for (j = 0; j < 16; j++)
316
                        tmp[j] = get_bits(&gb, bit_depth);
317
                }
318
        } else {
319
            for (p = 0; p < plane_count; p++)
320
                for (i = 0; i < 16; i++)
321
                    memcpy(dest[p] + i * linesize,
322
                           sl->intra_pcm_ptr + p * 256 + i * 16, 16);
323
        }
324
    } else {
325
266276
        if (IS_INTRA(mb_type)) {
326
49730
            if (sl->deblocking_filter)
327
42040
                xchg_mb_border(h, sl, dest[0], dest[1], dest[2], linesize,
328
                               linesize, 1, 1, SIMPLE, PIXEL_SHIFT);
329
330
198920
            for (p = 0; p < plane_count; p++)
331
149190
                hl_decode_mb_predict_luma(h, sl, mb_type, SIMPLE,
332
                                          transform_bypass, PIXEL_SHIFT,
333
                                          block_offset, linesize, dest[p], p);
334
335
49730
            if (sl->deblocking_filter)
336
42040
                xchg_mb_border(h, sl, dest[0], dest[1], dest[2], linesize,
337
                               linesize, 0, 1, SIMPLE, PIXEL_SHIFT);
338
        } else {
339
216546
            FUNC(hl_motion_444)(h, sl, dest[0], dest[1], dest[2],
340
216546
                      h->h264qpel.put_h264_qpel_pixels_tab,
341
216546
                      h->h264chroma.put_h264_chroma_pixels_tab,
342
216546
                      h->h264qpel.avg_h264_qpel_pixels_tab,
343
216546
                      h->h264chroma.avg_h264_chroma_pixels_tab,
344
216546
                      h->h264dsp.weight_h264_pixels_tab,
345
216546
                      h->h264dsp.biweight_h264_pixels_tab);
346
        }
347
348
1065104
        for (p = 0; p < plane_count; p++)
349
798828
            hl_decode_mb_idct_luma(h, sl, mb_type, SIMPLE, transform_bypass,
350
                                   PIXEL_SHIFT, block_offset, linesize,
351
                                   dest[p], p);
352
    }
353
266276
}
354
355
#endif