GCC Code Coverage Report
Directory: ../../../ffmpeg/ Exec Total Coverage
File: src/libavcodec/h264_slice.c Lines: 1377 1724 79.9 %
Date: 2021-04-19 06:27:07 Branches: 918 1297 70.8 %

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
 *
12
 * 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
/**
23
 * @file
24
 * H.264 / AVC / MPEG-4 part10 codec.
25
 * @author Michael Niedermayer <michaelni@gmx.at>
26
 */
27
28
#include "libavutil/avassert.h"
29
#include "libavutil/display.h"
30
#include "libavutil/imgutils.h"
31
#include "libavutil/stereo3d.h"
32
#include "internal.h"
33
#include "cabac.h"
34
#include "cabac_functions.h"
35
#include "error_resilience.h"
36
#include "avcodec.h"
37
#include "h264.h"
38
#include "h264dec.h"
39
#include "h264data.h"
40
#include "h264chroma.h"
41
#include "h264_mvpred.h"
42
#include "h264_ps.h"
43
#include "golomb.h"
44
#include "mathops.h"
45
#include "mpegutils.h"
46
#include "mpegvideo.h"
47
#include "rectangle.h"
48
#include "thread.h"
49
50
static const uint8_t field_scan[16+1] = {
51
    0 + 0 * 4, 0 + 1 * 4, 1 + 0 * 4, 0 + 2 * 4,
52
    0 + 3 * 4, 1 + 1 * 4, 1 + 2 * 4, 1 + 3 * 4,
53
    2 + 0 * 4, 2 + 1 * 4, 2 + 2 * 4, 2 + 3 * 4,
54
    3 + 0 * 4, 3 + 1 * 4, 3 + 2 * 4, 3 + 3 * 4,
55
};
56
57
static const uint8_t field_scan8x8[64+1] = {
58
    0 + 0 * 8, 0 + 1 * 8, 0 + 2 * 8, 1 + 0 * 8,
59
    1 + 1 * 8, 0 + 3 * 8, 0 + 4 * 8, 1 + 2 * 8,
60
    2 + 0 * 8, 1 + 3 * 8, 0 + 5 * 8, 0 + 6 * 8,
61
    0 + 7 * 8, 1 + 4 * 8, 2 + 1 * 8, 3 + 0 * 8,
62
    2 + 2 * 8, 1 + 5 * 8, 1 + 6 * 8, 1 + 7 * 8,
63
    2 + 3 * 8, 3 + 1 * 8, 4 + 0 * 8, 3 + 2 * 8,
64
    2 + 4 * 8, 2 + 5 * 8, 2 + 6 * 8, 2 + 7 * 8,
65
    3 + 3 * 8, 4 + 1 * 8, 5 + 0 * 8, 4 + 2 * 8,
66
    3 + 4 * 8, 3 + 5 * 8, 3 + 6 * 8, 3 + 7 * 8,
67
    4 + 3 * 8, 5 + 1 * 8, 6 + 0 * 8, 5 + 2 * 8,
68
    4 + 4 * 8, 4 + 5 * 8, 4 + 6 * 8, 4 + 7 * 8,
69
    5 + 3 * 8, 6 + 1 * 8, 6 + 2 * 8, 5 + 4 * 8,
70
    5 + 5 * 8, 5 + 6 * 8, 5 + 7 * 8, 6 + 3 * 8,
71
    7 + 0 * 8, 7 + 1 * 8, 6 + 4 * 8, 6 + 5 * 8,
72
    6 + 6 * 8, 6 + 7 * 8, 7 + 2 * 8, 7 + 3 * 8,
73
    7 + 4 * 8, 7 + 5 * 8, 7 + 6 * 8, 7 + 7 * 8,
74
};
75
76
static const uint8_t field_scan8x8_cavlc[64+1] = {
77
    0 + 0 * 8, 1 + 1 * 8, 2 + 0 * 8, 0 + 7 * 8,
78
    2 + 2 * 8, 2 + 3 * 8, 2 + 4 * 8, 3 + 3 * 8,
79
    3 + 4 * 8, 4 + 3 * 8, 4 + 4 * 8, 5 + 3 * 8,
80
    5 + 5 * 8, 7 + 0 * 8, 6 + 6 * 8, 7 + 4 * 8,
81
    0 + 1 * 8, 0 + 3 * 8, 1 + 3 * 8, 1 + 4 * 8,
82
    1 + 5 * 8, 3 + 1 * 8, 2 + 5 * 8, 4 + 1 * 8,
83
    3 + 5 * 8, 5 + 1 * 8, 4 + 5 * 8, 6 + 1 * 8,
84
    5 + 6 * 8, 7 + 1 * 8, 6 + 7 * 8, 7 + 5 * 8,
85
    0 + 2 * 8, 0 + 4 * 8, 0 + 5 * 8, 2 + 1 * 8,
86
    1 + 6 * 8, 4 + 0 * 8, 2 + 6 * 8, 5 + 0 * 8,
87
    3 + 6 * 8, 6 + 0 * 8, 4 + 6 * 8, 6 + 2 * 8,
88
    5 + 7 * 8, 6 + 4 * 8, 7 + 2 * 8, 7 + 6 * 8,
89
    1 + 0 * 8, 1 + 2 * 8, 0 + 6 * 8, 3 + 0 * 8,
90
    1 + 7 * 8, 3 + 2 * 8, 2 + 7 * 8, 4 + 2 * 8,
91
    3 + 7 * 8, 5 + 2 * 8, 4 + 7 * 8, 5 + 4 * 8,
92
    6 + 3 * 8, 6 + 5 * 8, 7 + 3 * 8, 7 + 7 * 8,
93
};
94
95
// zigzag_scan8x8_cavlc[i] = zigzag_scan8x8[(i/4) + 16*(i%4)]
96
static const uint8_t zigzag_scan8x8_cavlc[64+1] = {
97
    0 + 0 * 8, 1 + 1 * 8, 1 + 2 * 8, 2 + 2 * 8,
98
    4 + 1 * 8, 0 + 5 * 8, 3 + 3 * 8, 7 + 0 * 8,
99
    3 + 4 * 8, 1 + 7 * 8, 5 + 3 * 8, 6 + 3 * 8,
100
    2 + 7 * 8, 6 + 4 * 8, 5 + 6 * 8, 7 + 5 * 8,
101
    1 + 0 * 8, 2 + 0 * 8, 0 + 3 * 8, 3 + 1 * 8,
102
    3 + 2 * 8, 0 + 6 * 8, 4 + 2 * 8, 6 + 1 * 8,
103
    2 + 5 * 8, 2 + 6 * 8, 6 + 2 * 8, 5 + 4 * 8,
104
    3 + 7 * 8, 7 + 3 * 8, 4 + 7 * 8, 7 + 6 * 8,
105
    0 + 1 * 8, 3 + 0 * 8, 0 + 4 * 8, 4 + 0 * 8,
106
    2 + 3 * 8, 1 + 5 * 8, 5 + 1 * 8, 5 + 2 * 8,
107
    1 + 6 * 8, 3 + 5 * 8, 7 + 1 * 8, 4 + 5 * 8,
108
    4 + 6 * 8, 7 + 4 * 8, 5 + 7 * 8, 6 + 7 * 8,
109
    0 + 2 * 8, 2 + 1 * 8, 1 + 3 * 8, 5 + 0 * 8,
110
    1 + 4 * 8, 2 + 4 * 8, 6 + 0 * 8, 4 + 3 * 8,
111
    0 + 7 * 8, 4 + 4 * 8, 7 + 2 * 8, 3 + 6 * 8,
112
    5 + 5 * 8, 6 + 5 * 8, 6 + 6 * 8, 7 + 7 * 8,
113
};
114
115
26804
static void release_unused_pictures(H264Context *h, int remove_current)
116
{
117
    int i;
118
119
    /* release non reference frames */
120
991748
    for (i = 0; i < H264_MAX_PICTURE_COUNT; i++) {
121

964944
        if (h->DPB[i].f->buf[0] && !h->DPB[i].reference &&
122
2589
            (remove_current || &h->DPB[i] != h->cur_pic_ptr)) {
123
21437
            ff_h264_unref_picture(h, &h->DPB[i]);
124
        }
125
    }
126
26804
}
127
128
34216
static int alloc_scratch_buffers(H264SliceContext *sl, int linesize)
129
{
130
34216
    const H264Context *h = sl->h264;
131
34216
    int alloc_size = FFALIGN(FFABS(linesize) + 32, 32);
132
133
34216
    av_fast_malloc(&sl->bipred_scratchpad, &sl->bipred_scratchpad_allocated, 16 * 6 * alloc_size);
134
    // edge emu needs blocksize + filter length - 1
135
    // (= 21x21 for  H.264)
136
34216
    av_fast_malloc(&sl->edge_emu_buffer, &sl->edge_emu_buffer_allocated, alloc_size * 2 * 21);
137
138
34216
    av_fast_mallocz(&sl->top_borders[0], &sl->top_borders_allocated[0],
139
34216
                   h->mb_width * 16 * 3 * sizeof(uint8_t) * 2);
140
34216
    av_fast_mallocz(&sl->top_borders[1], &sl->top_borders_allocated[1],
141
34216
                   h->mb_width * 16 * 3 * sizeof(uint8_t) * 2);
142
143

34216
    if (!sl->bipred_scratchpad || !sl->edge_emu_buffer ||
144

34216
        !sl->top_borders[0]    || !sl->top_borders[1]) {
145
        av_freep(&sl->bipred_scratchpad);
146
        av_freep(&sl->edge_emu_buffer);
147
        av_freep(&sl->top_borders[0]);
148
        av_freep(&sl->top_borders[1]);
149
150
        sl->bipred_scratchpad_allocated = 0;
151
        sl->edge_emu_buffer_allocated   = 0;
152
        sl->top_borders_allocated[0]    = 0;
153
        sl->top_borders_allocated[1]    = 0;
154
        return AVERROR(ENOMEM);
155
    }
156
157
34216
    return 0;
158
}
159
160
546
static int init_table_pools(H264Context *h)
161
{
162
546
    const int big_mb_num    = h->mb_stride * (h->mb_height + 1) + 1;
163
546
    const int mb_array_size = h->mb_stride * h->mb_height;
164
546
    const int b4_stride     = h->mb_width * 4 + 1;
165
546
    const int b4_array_size = b4_stride * h->mb_height * 4;
166
167
546
    h->qscale_table_pool = av_buffer_pool_init(big_mb_num + h->mb_stride,
168
                                               av_buffer_allocz);
169
546
    h->mb_type_pool      = av_buffer_pool_init((big_mb_num + h->mb_stride) *
170
                                               sizeof(uint32_t), av_buffer_allocz);
171
546
    h->motion_val_pool   = av_buffer_pool_init(2 * (b4_array_size + 4) *
172
                                               sizeof(int16_t), av_buffer_allocz);
173
546
    h->ref_index_pool    = av_buffer_pool_init(4 * mb_array_size, av_buffer_allocz);
174
175

546
    if (!h->qscale_table_pool || !h->mb_type_pool || !h->motion_val_pool ||
176
546
        !h->ref_index_pool) {
177
        av_buffer_pool_uninit(&h->qscale_table_pool);
178
        av_buffer_pool_uninit(&h->mb_type_pool);
179
        av_buffer_pool_uninit(&h->motion_val_pool);
180
        av_buffer_pool_uninit(&h->ref_index_pool);
181
        return AVERROR(ENOMEM);
182
    }
183
184
546
    return 0;
185
}
186
187
23472
static int alloc_picture(H264Context *h, H264Picture *pic)
188
{
189
23472
    int i, ret = 0;
190
191
23472
    av_assert0(!pic->f->data[0]);
192
193
23472
    pic->tf.f = pic->f;
194
23472
    ret = ff_thread_get_buffer(h->avctx, &pic->tf, pic->reference ?
195
                                                   AV_GET_BUFFER_FLAG_REF : 0);
196
23472
    if (ret < 0)
197
        goto fail;
198
199
23472
    if (h->avctx->hwaccel) {
200
        const AVHWAccel *hwaccel = h->avctx->hwaccel;
201
        av_assert0(!pic->hwaccel_picture_private);
202
        if (hwaccel->frame_priv_data_size) {
203
            pic->hwaccel_priv_buf = av_buffer_allocz(hwaccel->frame_priv_data_size);
204
            if (!pic->hwaccel_priv_buf)
205
                return AVERROR(ENOMEM);
206
            pic->hwaccel_picture_private = pic->hwaccel_priv_buf->data;
207
        }
208
    }
209
    if (CONFIG_GRAY && !h->avctx->hwaccel && h->flags & AV_CODEC_FLAG_GRAY && pic->f->data[2]) {
210
        int h_chroma_shift, v_chroma_shift;
211
        av_pix_fmt_get_chroma_sub_sample(pic->f->format,
212
                                         &h_chroma_shift, &v_chroma_shift);
213
214
        for(i=0; i<AV_CEIL_RSHIFT(pic->f->height, v_chroma_shift); i++) {
215
            memset(pic->f->data[1] + pic->f->linesize[1]*i,
216
                   0x80, AV_CEIL_RSHIFT(pic->f->width, h_chroma_shift));
217
            memset(pic->f->data[2] + pic->f->linesize[2]*i,
218
                   0x80, AV_CEIL_RSHIFT(pic->f->width, h_chroma_shift));
219
        }
220
    }
221
222
23472
    if (!h->qscale_table_pool) {
223
546
        ret = init_table_pools(h);
224
546
        if (ret < 0)
225
            goto fail;
226
    }
227
228
23472
    pic->qscale_table_buf = av_buffer_pool_get(h->qscale_table_pool);
229
23472
    pic->mb_type_buf      = av_buffer_pool_get(h->mb_type_pool);
230

23472
    if (!pic->qscale_table_buf || !pic->mb_type_buf)
231
        goto fail;
232
233
23472
    pic->mb_type      = (uint32_t*)pic->mb_type_buf->data + 2 * h->mb_stride + 1;
234
23472
    pic->qscale_table = pic->qscale_table_buf->data + 2 * h->mb_stride + 1;
235
236
70416
    for (i = 0; i < 2; i++) {
237
46944
        pic->motion_val_buf[i] = av_buffer_pool_get(h->motion_val_pool);
238
46944
        pic->ref_index_buf[i]  = av_buffer_pool_get(h->ref_index_pool);
239

46944
        if (!pic->motion_val_buf[i] || !pic->ref_index_buf[i])
240
            goto fail;
241
242
46944
        pic->motion_val[i] = (int16_t (*)[2])pic->motion_val_buf[i]->data + 4;
243
46944
        pic->ref_index[i]  = pic->ref_index_buf[i]->data;
244
    }
245
246
23472
    pic->pps_buf = av_buffer_ref(h->ps.pps_ref);
247
23472
    if (!pic->pps_buf)
248
        goto fail;
249
23472
    pic->pps = (const PPS*)pic->pps_buf->data;
250
251
23472
    pic->mb_width  = h->mb_width;
252
23472
    pic->mb_height = h->mb_height;
253
23472
    pic->mb_stride = h->mb_stride;
254
255
23472
    return 0;
256
fail:
257
    ff_h264_unref_picture(h, pic);
258
    return (ret < 0) ? ret : AVERROR(ENOMEM);
259
}
260
261
23472
static int find_unused_picture(H264Context *h)
262
{
263
    int i;
264
265
82320
    for (i = 0; i < H264_MAX_PICTURE_COUNT; i++) {
266
82320
        if (!h->DPB[i].f->buf[0])
267
23472
            return i;
268
    }
269
    return AVERROR_INVALIDDATA;
270
}
271
272
273
#define IN_RANGE(a, b, size) (((void*)(a) >= (void*)(b)) && ((void*)(a) < (void*)((b) + (size))))
274
275
#define REBASE_PICTURE(pic, new_ctx, old_ctx)             \
276
    (((pic) && (pic) >= (old_ctx)->DPB &&                       \
277
      (pic) < (old_ctx)->DPB + H264_MAX_PICTURE_COUNT) ?          \
278
     &(new_ctx)->DPB[(pic) - (old_ctx)->DPB] : NULL)
279
280
129
static void copy_picture_range(H264Picture **to, H264Picture **from, int count,
281
                               H264Context *new_base,
282
                               H264Context *old_base)
283
{
284
    int i;
285
286
3655
    for (i = 0; i < count; i++) {
287
        av_assert1(!from[i] ||
288
                   IN_RANGE(from[i], old_base, 1) ||
289
                   IN_RANGE(from[i], old_base->DPB, H264_MAX_PICTURE_COUNT));
290

3526
        to[i] = REBASE_PICTURE(from[i], new_base, old_base);
291
    }
292
129
}
293
294
static int h264_slice_header_init(H264Context *h);
295
296
43
int ff_h264_update_thread_context(AVCodecContext *dst,
297
                                  const AVCodecContext *src)
298
{
299
43
    H264Context *h = dst->priv_data, *h1 = src->priv_data;
300
43
    int inited = h->context_initialized, err = 0;
301
43
    int need_reinit = 0;
302
    int i, ret;
303
304
43
    if (dst == src)
305
        return 0;
306
307

43
    if (inited && !h1->ps.sps)
308
        return AVERROR_INVALIDDATA;
309
310
43
    if (inited &&
311
35
        (h->width                 != h1->width                 ||
312
35
         h->height                != h1->height                ||
313
35
         h->mb_width              != h1->mb_width              ||
314
35
         h->mb_height             != h1->mb_height             ||
315
35
         !h->ps.sps                                            ||
316
35
         h->ps.sps->bit_depth_luma    != h1->ps.sps->bit_depth_luma    ||
317
35
         h->ps.sps->chroma_format_idc != h1->ps.sps->chroma_format_idc ||
318
35
         h->ps.sps->colorspace        != h1->ps.sps->colorspace)) {
319
        need_reinit = 1;
320
    }
321
322
    /* copy block_offset since frame_start may not be called */
323
43
    memcpy(h->block_offset, h1->block_offset, sizeof(h->block_offset));
324
325
    // SPS/PPS
326
1419
    for (i = 0; i < FF_ARRAY_ELEMS(h->ps.sps_list); i++) {
327
1376
        ret = av_buffer_replace(&h->ps.sps_list[i], h1->ps.sps_list[i]);
328
1376
        if (ret < 0)
329
            return ret;
330
    }
331
11051
    for (i = 0; i < FF_ARRAY_ELEMS(h->ps.pps_list); i++) {
332
11008
        ret = av_buffer_replace(&h->ps.pps_list[i], h1->ps.pps_list[i]);
333
11008
        if (ret < 0)
334
            return ret;
335
    }
336
337
43
    ret = av_buffer_replace(&h->ps.pps_ref, h1->ps.pps_ref);
338
43
    if (ret < 0)
339
        return ret;
340
43
    h->ps.pps = NULL;
341
43
    h->ps.sps = NULL;
342
43
    if (h1->ps.pps_ref) {
343
43
        h->ps.pps = (const PPS*)h->ps.pps_ref->data;
344
43
        h->ps.sps = h->ps.pps->sps;
345
    }
346
347

43
    if (need_reinit || !inited) {
348
8
        h->width     = h1->width;
349
8
        h->height    = h1->height;
350
8
        h->mb_height = h1->mb_height;
351
8
        h->mb_width  = h1->mb_width;
352
8
        h->mb_num    = h1->mb_num;
353
8
        h->mb_stride = h1->mb_stride;
354
8
        h->b_stride  = h1->b_stride;
355
8
        h->x264_build = h1->x264_build;
356
357

8
        if (h->context_initialized || h1->context_initialized) {
358
8
            if ((err = h264_slice_header_init(h)) < 0) {
359
                av_log(h->avctx, AV_LOG_ERROR, "h264_slice_header_init() failed");
360
                return err;
361
            }
362
        }
363
364
        /* copy block_offset since frame_start may not be called */
365
8
        memcpy(h->block_offset, h1->block_offset, sizeof(h->block_offset));
366
    }
367
368
43
    h->avctx->coded_height  = h1->avctx->coded_height;
369
43
    h->avctx->coded_width   = h1->avctx->coded_width;
370
43
    h->avctx->width         = h1->avctx->width;
371
43
    h->avctx->height        = h1->avctx->height;
372
43
    h->width_from_caller    = h1->width_from_caller;
373
43
    h->height_from_caller   = h1->height_from_caller;
374
43
    h->coded_picture_number = h1->coded_picture_number;
375
43
    h->first_field          = h1->first_field;
376
43
    h->picture_structure    = h1->picture_structure;
377
43
    h->mb_aff_frame         = h1->mb_aff_frame;
378
43
    h->droppable            = h1->droppable;
379
380
1591
    for (i = 0; i < H264_MAX_PICTURE_COUNT; i++) {
381
1548
        ff_h264_unref_picture(h, &h->DPB[i]);
382

1730
        if (h1->DPB[i].f->buf[0] &&
383
182
            (ret = ff_h264_ref_picture(h, &h->DPB[i], &h1->DPB[i])) < 0)
384
            return ret;
385
    }
386
387

43
    h->cur_pic_ptr = REBASE_PICTURE(h1->cur_pic_ptr, h, h1);
388
43
    ff_h264_unref_picture(h, &h->cur_pic);
389
43
    if (h1->cur_pic.f->buf[0]) {
390
43
        ret = ff_h264_ref_picture(h, &h->cur_pic, &h1->cur_pic);
391
43
        if (ret < 0)
392
            return ret;
393
    }
394
395
43
    h->enable_er       = h1->enable_er;
396
43
    h->workaround_bugs = h1->workaround_bugs;
397
43
    h->droppable       = h1->droppable;
398
399
    // extradata/NAL handling
400
43
    h->is_avc = h1->is_avc;
401
43
    h->nal_length_size = h1->nal_length_size;
402
403
43
    memcpy(&h->poc,        &h1->poc,        sizeof(h->poc));
404
405
43
    memcpy(h->short_ref,   h1->short_ref,   sizeof(h->short_ref));
406
43
    memcpy(h->long_ref,    h1->long_ref,    sizeof(h->long_ref));
407
43
    memcpy(h->delayed_pic, h1->delayed_pic, sizeof(h->delayed_pic));
408
43
    memcpy(h->last_pocs,   h1->last_pocs,   sizeof(h->last_pocs));
409
410
43
    h->next_output_pic   = h1->next_output_pic;
411
43
    h->next_outputed_poc = h1->next_outputed_poc;
412
413
43
    memcpy(h->mmco, h1->mmco, sizeof(h->mmco));
414
43
    h->nb_mmco         = h1->nb_mmco;
415
43
    h->mmco_reset      = h1->mmco_reset;
416
43
    h->explicit_ref_marking = h1->explicit_ref_marking;
417
43
    h->long_ref_count  = h1->long_ref_count;
418
43
    h->short_ref_count = h1->short_ref_count;
419
420
43
    copy_picture_range(h->short_ref, h1->short_ref, 32, h, h1);
421
43
    copy_picture_range(h->long_ref, h1->long_ref, 32, h, h1);
422
43
    copy_picture_range(h->delayed_pic, h1->delayed_pic,
423
                       MAX_DELAYED_PIC_COUNT + 2, h, h1);
424
425
43
    h->frame_recovered       = h1->frame_recovered;
426
427
43
    ret = av_buffer_replace(&h->sei.a53_caption.buf_ref, h1->sei.a53_caption.buf_ref);
428
43
    if (ret < 0)
429
        return ret;
430
431
43
    for (i = 0; i < h->sei.unregistered.nb_buf_ref; i++)
432
        av_buffer_unref(&h->sei.unregistered.buf_ref[i]);
433
43
    h->sei.unregistered.nb_buf_ref = 0;
434
435
43
    if (h1->sei.unregistered.nb_buf_ref) {
436
        ret = av_reallocp_array(&h->sei.unregistered.buf_ref,
437
                                h1->sei.unregistered.nb_buf_ref,
438
                                sizeof(*h->sei.unregistered.buf_ref));
439
        if (ret < 0)
440
            return ret;
441
442
        for (i = 0; i < h1->sei.unregistered.nb_buf_ref; i++) {
443
            h->sei.unregistered.buf_ref[i] = av_buffer_ref(h1->sei.unregistered.buf_ref[i]);
444
            if (!h->sei.unregistered.buf_ref[i])
445
                return AVERROR(ENOMEM);
446
            h->sei.unregistered.nb_buf_ref++;
447
        }
448
    }
449
43
    h->sei.unregistered.x264_build = h1->sei.unregistered.x264_build;
450
451
43
    if (!h->cur_pic_ptr)
452
11
        return 0;
453
454
32
    if (!h->droppable) {
455
19
        err = ff_h264_execute_ref_pic_marking(h);
456
19
        h->poc.prev_poc_msb = h->poc.poc_msb;
457
19
        h->poc.prev_poc_lsb = h->poc.poc_lsb;
458
    }
459
32
    h->poc.prev_frame_num_offset = h->poc.frame_num_offset;
460
32
    h->poc.prev_frame_num        = h->poc.frame_num;
461
462
32
    h->recovery_frame        = h1->recovery_frame;
463
464
32
    return err;
465
}
466
467
36
int ff_h264_update_thread_context_for_user(AVCodecContext *dst,
468
                                           const AVCodecContext *src)
469
{
470
36
    H264Context *h = dst->priv_data;
471
36
    const H264Context *h1 = src->priv_data;
472
473
36
    h->is_avc = h1->is_avc;
474
36
    h->nal_length_size = h1->nal_length_size;
475
476
36
    return 0;
477
}
478
479
23472
static int h264_frame_start(H264Context *h)
480
{
481
    H264Picture *pic;
482
    int i, ret;
483
23472
    const int pixel_shift = h->pixel_shift;
484
485
23472
    if (!ff_thread_can_start_frame(h->avctx)) {
486
        av_log(h->avctx, AV_LOG_ERROR, "Attempt to start a frame outside SETUP state\n");
487
        return -1;
488
    }
489
490
23472
    release_unused_pictures(h, 1);
491
23472
    h->cur_pic_ptr = NULL;
492
493
23472
    i = find_unused_picture(h);
494
23472
    if (i < 0) {
495
        av_log(h->avctx, AV_LOG_ERROR, "no frame buffer available\n");
496
        return i;
497
    }
498
23472
    pic = &h->DPB[i];
499
500
23472
    pic->reference              = h->droppable ? 0 : h->picture_structure;
501
23472
    pic->f->coded_picture_number = h->coded_picture_number++;
502
23472
    pic->field_picture          = h->picture_structure != PICT_FRAME;
503
23472
    pic->frame_num               = h->poc.frame_num;
504
    /*
505
     * Zero key_frame here; IDR markings per slice in frame or fields are ORed
506
     * in later.
507
     * See decode_nal_units().
508
     */
509
23472
    pic->f->key_frame = 0;
510
23472
    pic->mmco_reset  = 0;
511
23472
    pic->recovered   = 0;
512
23472
    pic->invalid_gap = 0;
513
23472
    pic->sei_recovery_frame_cnt = h->sei.recovery_point.recovery_frame_cnt;
514
515
23472
    pic->f->pict_type = h->slice_ctx[0].slice_type;
516
517
23472
    pic->f->crop_left   = h->crop_left;
518
23472
    pic->f->crop_right  = h->crop_right;
519
23472
    pic->f->crop_top    = h->crop_top;
520
23472
    pic->f->crop_bottom = h->crop_bottom;
521
522
23472
    if ((ret = alloc_picture(h, pic)) < 0)
523
        return ret;
524
525
23472
    h->cur_pic_ptr = pic;
526
23472
    ff_h264_unref_picture(h, &h->cur_pic);
527
    if (CONFIG_ERROR_RESILIENCE) {
528
23472
        ff_h264_set_erpic(&h->slice_ctx[0].er.cur_pic, NULL);
529
    }
530
531
23472
    if ((ret = ff_h264_ref_picture(h, &h->cur_pic, h->cur_pic_ptr)) < 0)
532
        return ret;
533
534
47244
    for (i = 0; i < h->nb_slice_ctx; i++) {
535
23772
        h->slice_ctx[i].linesize   = h->cur_pic_ptr->f->linesize[0];
536
23772
        h->slice_ctx[i].uvlinesize = h->cur_pic_ptr->f->linesize[1];
537
    }
538
539
23472
    if (CONFIG_ERROR_RESILIENCE && h->enable_er) {
540
23172
        ff_er_frame_start(&h->slice_ctx[0].er);
541
23172
        ff_h264_set_erpic(&h->slice_ctx[0].er.last_pic, NULL);
542
23172
        ff_h264_set_erpic(&h->slice_ctx[0].er.next_pic, NULL);
543
    }
544
545
399024
    for (i = 0; i < 16; i++) {
546
375552
        h->block_offset[i]           = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 4 * pic->f->linesize[0] * ((scan8[i] - scan8[0]) >> 3);
547
375552
        h->block_offset[48 + i]      = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 8 * pic->f->linesize[0] * ((scan8[i] - scan8[0]) >> 3);
548
    }
549
399024
    for (i = 0; i < 16; i++) {
550
375552
        h->block_offset[16 + i]      =
551
375552
        h->block_offset[32 + i]      = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 4 * pic->f->linesize[1] * ((scan8[i] - scan8[0]) >> 3);
552
375552
        h->block_offset[48 + 16 + i] =
553
375552
        h->block_offset[48 + 32 + i] = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 8 * pic->f->linesize[1] * ((scan8[i] - scan8[0]) >> 3);
554
    }
555
556
    /* We mark the current picture as non-reference after allocating it, so
557
     * that if we break out due to an error it can be released automatically
558
     * in the next ff_mpv_frame_start().
559
     */
560
23472
    h->cur_pic_ptr->reference = 0;
561
562
23472
    h->cur_pic_ptr->field_poc[0] = h->cur_pic_ptr->field_poc[1] = INT_MAX;
563
564
23472
    h->next_output_pic = NULL;
565
566
23472
    h->postpone_filter = 0;
567
568

23472
    h->mb_aff_frame = h->ps.sps->mb_aff && (h->picture_structure == PICT_FRAME);
569
570
23472
    if (h->sei.unregistered.x264_build >= 0)
571
1829
        h->x264_build = h->sei.unregistered.x264_build;
572
573
    assert(h->cur_pic_ptr->long_ref == 0);
574
575
23472
    return 0;
576
}
577
578
11609103
static av_always_inline void backup_mb_border(const H264Context *h, H264SliceContext *sl,
579
                                              uint8_t *src_y,
580
                                              uint8_t *src_cb, uint8_t *src_cr,
581
                                              int linesize, int uvlinesize,
582
                                              int simple)
583
{
584
    uint8_t *top_border;
585
11609103
    int top_idx = 1;
586
11609103
    const int pixel_shift = h->pixel_shift;
587
11609103
    int chroma444 = CHROMA444(h);
588
11609103
    int chroma422 = CHROMA422(h);
589
590
11609103
    src_y  -= linesize;
591
11609103
    src_cb -= uvlinesize;
592
11609103
    src_cr -= uvlinesize;
593
594

11609103
    if (!simple && FRAME_MBAFF(h)) {
595
1814136
        if (sl->mb_y & 1) {
596
907068
            if (!MB_MBAFF(sl)) {
597
665811
                top_border = sl->top_borders[0][sl->mb_x];
598
665811
                AV_COPY128(top_border, src_y + 15 * linesize);
599
665811
                if (pixel_shift)
600
213139
                    AV_COPY128(top_border + 16, src_y + 15 * linesize + 16);
601
                if (simple || !CONFIG_GRAY || !(h->flags & AV_CODEC_FLAG_GRAY)) {
602
665811
                    if (chroma444) {
603
                        if (pixel_shift) {
604
                            AV_COPY128(top_border + 32, src_cb + 15 * uvlinesize);
605
                            AV_COPY128(top_border + 48, src_cb + 15 * uvlinesize + 16);
606
                            AV_COPY128(top_border + 64, src_cr + 15 * uvlinesize);
607
                            AV_COPY128(top_border + 80, src_cr + 15 * uvlinesize + 16);
608
                        } else {
609
                            AV_COPY128(top_border + 16, src_cb + 15 * uvlinesize);
610
                            AV_COPY128(top_border + 32, src_cr + 15 * uvlinesize);
611
                        }
612
665811
                    } else if (chroma422) {
613
106510
                        if (pixel_shift) {
614
106510
                            AV_COPY128(top_border + 32, src_cb + 15 * uvlinesize);
615
106510
                            AV_COPY128(top_border + 48, src_cr + 15 * uvlinesize);
616
                        } else {
617
                            AV_COPY64(top_border + 16, src_cb + 15 * uvlinesize);
618
                            AV_COPY64(top_border + 24, src_cr + 15 * uvlinesize);
619
                        }
620
                    } else {
621
559301
                        if (pixel_shift) {
622
106629
                            AV_COPY128(top_border + 32, src_cb + 7 * uvlinesize);
623
106629
                            AV_COPY128(top_border + 48, src_cr + 7 * uvlinesize);
624
                        } else {
625
452672
                            AV_COPY64(top_border + 16, src_cb + 7 * uvlinesize);
626
452672
                            AV_COPY64(top_border + 24, src_cr + 7 * uvlinesize);
627
                        }
628
                    }
629
                }
630
            }
631
907068
        } else if (MB_MBAFF(sl)) {
632
241257
            top_idx = 0;
633
        } else
634
665811
            return;
635
    }
636
637
10943292
    top_border = sl->top_borders[top_idx][sl->mb_x];
638
    /* There are two lines saved, the line above the top macroblock
639
     * of a pair, and the line above the bottom macroblock. */
640
10943292
    AV_COPY128(top_border, src_y + 16 * linesize);
641
10943292
    if (pixel_shift)
642
1300901
        AV_COPY128(top_border + 16, src_y + 16 * linesize + 16);
643
644
    if (simple || !CONFIG_GRAY || !(h->flags & AV_CODEC_FLAG_GRAY)) {
645
10943292
        if (chroma444) {
646
80328
            if (pixel_shift) {
647
19800
                AV_COPY128(top_border + 32, src_cb + 16 * linesize);
648
19800
                AV_COPY128(top_border + 48, src_cb + 16 * linesize + 16);
649
19800
                AV_COPY128(top_border + 64, src_cr + 16 * linesize);
650
19800
                AV_COPY128(top_border + 80, src_cr + 16 * linesize + 16);
651
            } else {
652
60528
                AV_COPY128(top_border + 16, src_cb + 16 * linesize);
653
60528
                AV_COPY128(top_border + 32, src_cr + 16 * linesize);
654
            }
655
10862964
        } else if (chroma422) {
656
588635
            if (pixel_shift) {
657
584675
                AV_COPY128(top_border + 32, src_cb + 16 * uvlinesize);
658
584675
                AV_COPY128(top_border + 48, src_cr + 16 * uvlinesize);
659
            } else {
660
3960
                AV_COPY64(top_border + 16, src_cb + 16 * uvlinesize);
661
3960
                AV_COPY64(top_border + 24, src_cr + 16 * uvlinesize);
662
            }
663
        } else {
664
10274329
            if (pixel_shift) {
665
696426
                AV_COPY128(top_border + 32, src_cb + 8 * uvlinesize);
666
696426
                AV_COPY128(top_border + 48, src_cr + 8 * uvlinesize);
667
            } else {
668
9577903
                AV_COPY64(top_border + 16, src_cb + 8 * uvlinesize);
669
9577903
                AV_COPY64(top_border + 24, src_cr + 8 * uvlinesize);
670
            }
671
        }
672
    }
673
}
674
675
/**
676
 * Initialize implicit_weight table.
677
 * @param field  0/1 initialize the weight for interlaced MBAFF
678
 *                -1 initializes the rest
679
 */
680
3299
static void implicit_weight_table(const H264Context *h, H264SliceContext *sl, int field)
681
{
682
    int ref0, ref1, i, cur_poc, ref_start, ref_count0, ref_count1;
683
684
9897
    for (i = 0; i < 2; i++) {
685
6598
        sl->pwt.luma_weight_flag[i]   = 0;
686
6598
        sl->pwt.chroma_weight_flag[i] = 0;
687
    }
688
689
3299
    if (field < 0) {
690
1589
        if (h->picture_structure == PICT_FRAME) {
691
1589
            cur_poc = h->cur_pic_ptr->poc;
692
        } else {
693
            cur_poc = h->cur_pic_ptr->field_poc[h->picture_structure - 1];
694
        }
695

1589
        if (sl->ref_count[0] == 1 && sl->ref_count[1] == 1 && !FRAME_MBAFF(h) &&
696
97
            sl->ref_list[0][0].poc + (int64_t)sl->ref_list[1][0].poc == 2LL * cur_poc) {
697
34
            sl->pwt.use_weight        = 0;
698
34
            sl->pwt.use_weight_chroma = 0;
699
34
            return;
700
        }
701
1555
        ref_start  = 0;
702
1555
        ref_count0 = sl->ref_count[0];
703
1555
        ref_count1 = sl->ref_count[1];
704
    } else {
705
1710
        cur_poc    = h->cur_pic_ptr->field_poc[field];
706
1710
        ref_start  = 16;
707
1710
        ref_count0 = 16 + 2 * sl->ref_count[0];
708
1710
        ref_count1 = 16 + 2 * sl->ref_count[1];
709
    }
710
711
3265
    sl->pwt.use_weight               = 2;
712
3265
    sl->pwt.use_weight_chroma        = 2;
713
3265
    sl->pwt.luma_log2_weight_denom   = 5;
714
3265
    sl->pwt.chroma_log2_weight_denom = 5;
715
716
14879
    for (ref0 = ref_start; ref0 < ref_count0; ref0++) {
717
11614
        int64_t poc0 = sl->ref_list[0][ref0].poc;
718
33317
        for (ref1 = ref_start; ref1 < ref_count1; ref1++) {
719
21703
            int w = 32;
720

21703
            if (!sl->ref_list[0][ref0].parent->long_ref && !sl->ref_list[1][ref1].parent->long_ref) {
721
21703
                int poc1 = sl->ref_list[1][ref1].poc;
722
21703
                int td   = av_clip_int8(poc1 - poc0);
723
21703
                if (td) {
724
21637
                    int tb = av_clip_int8(cur_poc - poc0);
725
21637
                    int tx = (16384 + (FFABS(td) >> 1)) / td;
726
21637
                    int dist_scale_factor = (tb * tx + 32) >> 8;
727

21637
                    if (dist_scale_factor >= -64 && dist_scale_factor <= 128)
728
21633
                        w = 64 - dist_scale_factor;
729
                }
730
            }
731
21703
            if (field < 0) {
732
5823
                sl->pwt.implicit_weight[ref0][ref1][0] =
733
5823
                sl->pwt.implicit_weight[ref0][ref1][1] = w;
734
            } else {
735
15880
                sl->pwt.implicit_weight[ref0][ref1][field] = w;
736
            }
737
        }
738
    }
739
}
740
741
/**
742
 * initialize scan tables
743
 */
744
546
static void init_scan_tables(H264Context *h)
745
{
746
    int i;
747
9282
    for (i = 0; i < 16; i++) {
748
#define TRANSPOSE(x) ((x) >> 2) | (((x) << 2) & 0xF)
749
8736
        h->zigzag_scan[i] = TRANSPOSE(ff_zigzag_scan[i]);
750
8736
        h->field_scan[i]  = TRANSPOSE(field_scan[i]);
751
#undef TRANSPOSE
752
    }
753
35490
    for (i = 0; i < 64; i++) {
754
#define TRANSPOSE(x) ((x) >> 3) | (((x) & 7) << 3)
755
34944
        h->zigzag_scan8x8[i]       = TRANSPOSE(ff_zigzag_direct[i]);
756
34944
        h->zigzag_scan8x8_cavlc[i] = TRANSPOSE(zigzag_scan8x8_cavlc[i]);
757
34944
        h->field_scan8x8[i]        = TRANSPOSE(field_scan8x8[i]);
758
34944
        h->field_scan8x8_cavlc[i]  = TRANSPOSE(field_scan8x8_cavlc[i]);
759
#undef TRANSPOSE
760
    }
761
546
    if (h->ps.sps->transform_bypass) { // FIXME same ugly
762
12
        memcpy(h->zigzag_scan_q0          , ff_zigzag_scan          , sizeof(h->zigzag_scan_q0         ));
763
12
        memcpy(h->zigzag_scan8x8_q0       , ff_zigzag_direct        , sizeof(h->zigzag_scan8x8_q0      ));
764
12
        memcpy(h->zigzag_scan8x8_cavlc_q0 , zigzag_scan8x8_cavlc    , sizeof(h->zigzag_scan8x8_cavlc_q0));
765
12
        memcpy(h->field_scan_q0           , field_scan              , sizeof(h->field_scan_q0          ));
766
12
        memcpy(h->field_scan8x8_q0        , field_scan8x8           , sizeof(h->field_scan8x8_q0       ));
767
12
        memcpy(h->field_scan8x8_cavlc_q0  , field_scan8x8_cavlc     , sizeof(h->field_scan8x8_cavlc_q0 ));
768
    } else {
769
534
        memcpy(h->zigzag_scan_q0          , h->zigzag_scan          , sizeof(h->zigzag_scan_q0         ));
770
534
        memcpy(h->zigzag_scan8x8_q0       , h->zigzag_scan8x8       , sizeof(h->zigzag_scan8x8_q0      ));
771
534
        memcpy(h->zigzag_scan8x8_cavlc_q0 , h->zigzag_scan8x8_cavlc , sizeof(h->zigzag_scan8x8_cavlc_q0));
772
534
        memcpy(h->field_scan_q0           , h->field_scan           , sizeof(h->field_scan_q0          ));
773
534
        memcpy(h->field_scan8x8_q0        , h->field_scan8x8        , sizeof(h->field_scan8x8_q0       ));
774
534
        memcpy(h->field_scan8x8_cavlc_q0  , h->field_scan8x8_cavlc  , sizeof(h->field_scan8x8_cavlc_q0 ));
775
    }
776
546
}
777
778
26353
static enum AVPixelFormat get_pixel_format(H264Context *h, int force_callback)
779
{
780
#define HWACCEL_MAX (CONFIG_H264_DXVA2_HWACCEL + \
781
                     (CONFIG_H264_D3D11VA_HWACCEL * 2) + \
782
                     CONFIG_H264_NVDEC_HWACCEL + \
783
                     CONFIG_H264_VAAPI_HWACCEL + \
784
                     CONFIG_H264_VIDEOTOOLBOX_HWACCEL + \
785
                     CONFIG_H264_VDPAU_HWACCEL)
786
26353
    enum AVPixelFormat pix_fmts[HWACCEL_MAX + 2], *fmt = pix_fmts;
787
26353
    const enum AVPixelFormat *choices = pix_fmts;
788
    int i;
789
790

26353
    switch (h->ps.sps->bit_depth_luma) {
791
155
    case 9:
792
155
        if (CHROMA444(h)) {
793
            if (h->avctx->colorspace == AVCOL_SPC_RGB) {
794
                *fmt++ = AV_PIX_FMT_GBRP9;
795
            } else
796
                *fmt++ = AV_PIX_FMT_YUV444P9;
797
155
        } else if (CHROMA422(h))
798
52
            *fmt++ = AV_PIX_FMT_YUV422P9;
799
        else
800
103
            *fmt++ = AV_PIX_FMT_YUV420P9;
801
155
        break;
802
355
    case 10:
803
355
        if (CHROMA444(h)) {
804
51
            if (h->avctx->colorspace == AVCOL_SPC_RGB) {
805
                *fmt++ = AV_PIX_FMT_GBRP10;
806
            } else
807
51
                *fmt++ = AV_PIX_FMT_YUV444P10;
808
304
        } else if (CHROMA422(h))
809
164
            *fmt++ = AV_PIX_FMT_YUV422P10;
810
        else
811
140
            *fmt++ = AV_PIX_FMT_YUV420P10;
812
355
        break;
813
    case 12:
814
        if (CHROMA444(h)) {
815
            if (h->avctx->colorspace == AVCOL_SPC_RGB) {
816
                *fmt++ = AV_PIX_FMT_GBRP12;
817
            } else
818
                *fmt++ = AV_PIX_FMT_YUV444P12;
819
        } else if (CHROMA422(h))
820
            *fmt++ = AV_PIX_FMT_YUV422P12;
821
        else
822
            *fmt++ = AV_PIX_FMT_YUV420P12;
823
        break;
824
    case 14:
825
        if (CHROMA444(h)) {
826
            if (h->avctx->colorspace == AVCOL_SPC_RGB) {
827
                *fmt++ = AV_PIX_FMT_GBRP14;
828
            } else
829
                *fmt++ = AV_PIX_FMT_YUV444P14;
830
        } else if (CHROMA422(h))
831
            *fmt++ = AV_PIX_FMT_YUV422P14;
832
        else
833
            *fmt++ = AV_PIX_FMT_YUV420P14;
834
        break;
835
25843
    case 8:
836
#if CONFIG_H264_VDPAU_HWACCEL
837
25843
        *fmt++ = AV_PIX_FMT_VDPAU;
838
#endif
839
#if CONFIG_H264_NVDEC_HWACCEL
840
        *fmt++ = AV_PIX_FMT_CUDA;
841
#endif
842
25843
        if (CHROMA444(h)) {
843
405
            if (h->avctx->colorspace == AVCOL_SPC_RGB)
844
                *fmt++ = AV_PIX_FMT_GBRP;
845
405
            else if (h->avctx->color_range == AVCOL_RANGE_JPEG)
846
2
                *fmt++ = AV_PIX_FMT_YUVJ444P;
847
            else
848
403
                *fmt++ = AV_PIX_FMT_YUV444P;
849
25438
        } else if (CHROMA422(h)) {
850
22
            if (h->avctx->color_range == AVCOL_RANGE_JPEG)
851
                *fmt++ = AV_PIX_FMT_YUVJ422P;
852
            else
853
22
                *fmt++ = AV_PIX_FMT_YUV422P;
854
        } else {
855
#if CONFIG_H264_DXVA2_HWACCEL
856
            *fmt++ = AV_PIX_FMT_DXVA2_VLD;
857
#endif
858
#if CONFIG_H264_D3D11VA_HWACCEL
859
            *fmt++ = AV_PIX_FMT_D3D11VA_VLD;
860
            *fmt++ = AV_PIX_FMT_D3D11;
861
#endif
862
#if CONFIG_H264_VAAPI_HWACCEL
863
25416
            *fmt++ = AV_PIX_FMT_VAAPI;
864
#endif
865
#if CONFIG_H264_VIDEOTOOLBOX_HWACCEL
866
            *fmt++ = AV_PIX_FMT_VIDEOTOOLBOX;
867
#endif
868
25416
            if (h->avctx->codec->pix_fmts)
869
                choices = h->avctx->codec->pix_fmts;
870
25416
            else if (h->avctx->color_range == AVCOL_RANGE_JPEG)
871
3
                *fmt++ = AV_PIX_FMT_YUVJ420P;
872
            else
873
25413
                *fmt++ = AV_PIX_FMT_YUV420P;
874
        }
875
25843
        break;
876
    default:
877
        av_log(h->avctx, AV_LOG_ERROR,
878
               "Unsupported bit depth %d\n", h->ps.sps->bit_depth_luma);
879
        return AVERROR_INVALIDDATA;
880
    }
881
882
26353
    *fmt = AV_PIX_FMT_NONE;
883
884
78153
    for (i=0; choices[i] != AV_PIX_FMT_NONE; i++)
885

77612
        if (choices[i] == h->avctx->pix_fmt && !force_callback)
886
25812
            return choices[i];
887
541
    return ff_thread_get_format(h->avctx, choices);
888
}
889
890
/* export coded and cropped frame dimensions to AVCodecContext */
891
26111
static void init_dimensions(H264Context *h)
892
{
893
26111
    const SPS *sps = (const SPS*)h->ps.sps;
894
26111
    int cr = sps->crop_right;
895
26111
    int cl = sps->crop_left;
896
26111
    int ct = sps->crop_top;
897
26111
    int cb = sps->crop_bottom;
898
26111
    int width  = h->width  - (cr + cl);
899
26111
    int height = h->height - (ct + cb);
900
26111
    av_assert0(sps->crop_right + sps->crop_left < (unsigned)h->width);
901
26111
    av_assert0(sps->crop_top + sps->crop_bottom < (unsigned)h->height);
902
903
    /* handle container cropping */
904

26111
    if (h->width_from_caller > 0 && h->height_from_caller > 0     &&
905

23892
        !sps->crop_top && !sps->crop_left                         &&
906
23891
        FFALIGN(h->width_from_caller,  16) == FFALIGN(width,  16) &&
907
23886
        FFALIGN(h->height_from_caller, 16) == FFALIGN(height, 16) &&
908
23886
        h->width_from_caller  <= width &&
909
23886
        h->height_from_caller <= height) {
910
23885
        width  = h->width_from_caller;
911
23885
        height = h->height_from_caller;
912
23885
        cl = 0;
913
23885
        ct = 0;
914
23885
        cr = h->width - width;
915
23885
        cb = h->height - height;
916
    } else {
917
2226
        h->width_from_caller  = 0;
918
2226
        h->height_from_caller = 0;
919
    }
920
921
26111
    h->avctx->coded_width  = h->width;
922
26111
    h->avctx->coded_height = h->height;
923
26111
    h->avctx->width        = width;
924
26111
    h->avctx->height       = height;
925
26111
    h->crop_right          = cr;
926
26111
    h->crop_left           = cl;
927
26111
    h->crop_top            = ct;
928
26111
    h->crop_bottom         = cb;
929
26111
}
930
931
546
static int h264_slice_header_init(H264Context *h)
932
{
933
546
    const SPS *sps = h->ps.sps;
934
    int i, ret;
935
936
546
    if (!sps) {
937
        ret = AVERROR_INVALIDDATA;
938
        goto fail;
939
    }
940
941
546
    ff_set_sar(h->avctx, sps->sar);
942
546
    av_pix_fmt_get_chroma_sub_sample(h->avctx->pix_fmt,
943
                                     &h->chroma_x_shift, &h->chroma_y_shift);
944
945
546
    if (sps->timing_info_present_flag) {
946
143
        int64_t den = sps->time_scale;
947
143
        if (h->x264_build < 44U)
948
            den *= 2;
949
143
        av_reduce(&h->avctx->framerate.den, &h->avctx->framerate.num,
950
143
                  sps->num_units_in_tick * h->avctx->ticks_per_frame, den, 1 << 30);
951
    }
952
953
546
    ff_h264_free_tables(h);
954
955
546
    h->first_field           = 0;
956
546
    h->prev_interlaced_frame = 1;
957
958
546
    init_scan_tables(h);
959
546
    ret = ff_h264_alloc_tables(h);
960
546
    if (ret < 0) {
961
        av_log(h->avctx, AV_LOG_ERROR, "Could not allocate memory\n");
962
        goto fail;
963
    }
964
965

546
    if (sps->bit_depth_luma < 8 || sps->bit_depth_luma > 14 ||
966

546
        sps->bit_depth_luma == 11 || sps->bit_depth_luma == 13
967
    ) {
968
        av_log(h->avctx, AV_LOG_ERROR, "Unsupported bit depth %d\n",
969
               sps->bit_depth_luma);
970
        ret = AVERROR_INVALIDDATA;
971
        goto fail;
972
    }
973
974
546
    h->cur_bit_depth_luma         =
975
546
    h->avctx->bits_per_raw_sample = sps->bit_depth_luma;
976
546
    h->cur_chroma_format_idc      = sps->chroma_format_idc;
977
546
    h->pixel_shift                = sps->bit_depth_luma > 8;
978
546
    h->chroma_format_idc          = sps->chroma_format_idc;
979
546
    h->bit_depth_luma             = sps->bit_depth_luma;
980
981
546
    ff_h264dsp_init(&h->h264dsp, sps->bit_depth_luma,
982
                    sps->chroma_format_idc);
983
546
    ff_h264chroma_init(&h->h264chroma, sps->bit_depth_chroma);
984
546
    ff_h264qpel_init(&h->h264qpel, sps->bit_depth_luma);
985
546
    ff_h264_pred_init(&h->hpc, h->avctx->codec_id, sps->bit_depth_luma,
986
                      sps->chroma_format_idc);
987
546
    ff_videodsp_init(&h->vdsp, sps->bit_depth_luma);
988
989
546
    if (!HAVE_THREADS || !(h->avctx->active_thread_type & FF_THREAD_SLICE)) {
990
545
        ret = ff_h264_slice_context_init(h, &h->slice_ctx[0]);
991
545
        if (ret < 0) {
992
            av_log(h->avctx, AV_LOG_ERROR, "context_init() failed.\n");
993
            goto fail;
994
        }
995
    } else {
996
3
        for (i = 0; i < h->nb_slice_ctx; i++) {
997
2
            H264SliceContext *sl = &h->slice_ctx[i];
998
999
2
            sl->h264               = h;
1000
2
            sl->intra4x4_pred_mode = h->intra4x4_pred_mode + i * 8 * 2 * h->mb_stride;
1001
2
            sl->mvd_table[0]       = h->mvd_table[0]       + i * 8 * 2 * h->mb_stride;
1002
2
            sl->mvd_table[1]       = h->mvd_table[1]       + i * 8 * 2 * h->mb_stride;
1003
1004
2
            if ((ret = ff_h264_slice_context_init(h, sl)) < 0) {
1005
                av_log(h->avctx, AV_LOG_ERROR, "context_init() failed.\n");
1006
                goto fail;
1007
            }
1008
        }
1009
    }
1010
1011
546
    h->context_initialized = 1;
1012
1013
546
    return 0;
1014
fail:
1015
    ff_h264_free_tables(h);
1016
    h->context_initialized = 0;
1017
    return ret;
1018
}
1019
1020
51630
static enum AVPixelFormat non_j_pixfmt(enum AVPixelFormat a)
1021
{
1022

51630
    switch (a) {
1023
2
    case AV_PIX_FMT_YUVJ420P: return AV_PIX_FMT_YUV420P;
1024
    case AV_PIX_FMT_YUVJ422P: return AV_PIX_FMT_YUV422P;
1025
    case AV_PIX_FMT_YUVJ444P: return AV_PIX_FMT_YUV444P;
1026
51628
    default:
1027
51628
        return a;
1028
    }
1029
}
1030
1031
26111
static int h264_init_ps(H264Context *h, const H264SliceContext *sl, int first_slice)
1032
{
1033
    const SPS *sps;
1034
26111
    int needs_reinit = 0, must_reinit, ret;
1035
1036
26111
    if (first_slice) {
1037
25918
        av_buffer_unref(&h->ps.pps_ref);
1038
25918
        h->ps.pps = NULL;
1039
25918
        h->ps.pps_ref = av_buffer_ref(h->ps.pps_list[sl->pps_id]);
1040
25918
        if (!h->ps.pps_ref)
1041
            return AVERROR(ENOMEM);
1042
25918
        h->ps.pps = (const PPS*)h->ps.pps_ref->data;
1043
    }
1044
1045
26111
    if (h->ps.sps != h->ps.pps->sps) {
1046
542
        h->ps.sps = (const SPS*)h->ps.pps->sps;
1047
1048
542
        if (h->mb_width  != h->ps.sps->mb_width ||
1049
6
            h->mb_height != h->ps.sps->mb_height ||
1050
6
            h->cur_bit_depth_luma    != h->ps.sps->bit_depth_luma ||
1051
5
            h->cur_chroma_format_idc != h->ps.sps->chroma_format_idc
1052
        )
1053
538
            needs_reinit = 1;
1054
1055
542
        if (h->bit_depth_luma    != h->ps.sps->bit_depth_luma ||
1056
8
            h->chroma_format_idc != h->ps.sps->chroma_format_idc)
1057
535
            needs_reinit         = 1;
1058
    }
1059
26111
    sps = h->ps.sps;
1060
1061
51690
    must_reinit = (h->context_initialized &&
1062
25579
                    (   16*sps->mb_width != h->avctx->coded_width
1063
25575
                     || 16*sps->mb_height != h->avctx->coded_height
1064
25575
                     || h->cur_bit_depth_luma    != sps->bit_depth_luma
1065
25574
                     || h->cur_chroma_format_idc != sps->chroma_format_idc
1066
25573
                     || h->mb_width  != sps->mb_width
1067
25573
                     || h->mb_height != sps->mb_height
1068
                    ));
1069
26111
    if (h->avctx->pix_fmt == AV_PIX_FMT_NONE
1070
25815
        || (non_j_pixfmt(h->avctx->pix_fmt) != non_j_pixfmt(get_pixel_format(h, 0))))
1071
299
        must_reinit = 1;
1072
1073

26111
    if (first_slice && av_cmp_q(sps->sar, h->avctx->sample_aspect_ratio))
1074
53
        must_reinit = 1;
1075
1076
26111
    if (!h->setup_finished) {
1077
26111
        h->avctx->profile = ff_h264_get_profile(sps);
1078
26111
        h->avctx->level   = sps->level_idc;
1079
26111
        h->avctx->refs    = sps->ref_frame_count;
1080
1081
26111
        h->mb_width  = sps->mb_width;
1082
26111
        h->mb_height = sps->mb_height;
1083
26111
        h->mb_num    = h->mb_width * h->mb_height;
1084
26111
        h->mb_stride = h->mb_width + 1;
1085
1086
26111
        h->b_stride = h->mb_width * 4;
1087
1088
26111
        h->chroma_y_shift = sps->chroma_format_idc <= 1; // 400 uses yuv420p
1089
1090
26111
        h->width  = 16 * h->mb_width;
1091
26111
        h->height = 16 * h->mb_height;
1092
1093
26111
        init_dimensions(h);
1094
1095
26111
        if (sps->video_signal_type_present_flag) {
1096
1736
            h->avctx->color_range = sps->full_range > 0 ? AVCOL_RANGE_JPEG
1097
868
                                                        : AVCOL_RANGE_MPEG;
1098
868
            if (sps->colour_description_present_flag) {
1099
770
                if (h->avctx->colorspace != sps->colorspace)
1100
14
                    needs_reinit = 1;
1101
770
                h->avctx->color_primaries = sps->color_primaries;
1102
770
                h->avctx->color_trc       = sps->color_trc;
1103
770
                h->avctx->colorspace      = sps->colorspace;
1104
            }
1105
        }
1106
1107

26111
        if (h->sei.alternative_transfer.present &&
1108
            av_color_transfer_name(h->sei.alternative_transfer.preferred_transfer_characteristics) &&
1109
            h->sei.alternative_transfer.preferred_transfer_characteristics != AVCOL_TRC_UNSPECIFIED) {
1110
            h->avctx->color_trc = h->sei.alternative_transfer.preferred_transfer_characteristics;
1111
        }
1112
    }
1113
26111
    h->avctx->chroma_sample_location = sps->chroma_location;
1114
1115

26111
    if (!h->context_initialized || must_reinit || needs_reinit) {
1116
538
        int flush_changes = h->context_initialized;
1117
538
        h->context_initialized = 0;
1118
538
        if (sl != h->slice_ctx) {
1119
            av_log(h->avctx, AV_LOG_ERROR,
1120
                   "changing width %d -> %d / height %d -> %d on "
1121
                   "slice %d\n",
1122
                   h->width, h->avctx->coded_width,
1123
                   h->height, h->avctx->coded_height,
1124
                   h->current_slice + 1);
1125
            return AVERROR_INVALIDDATA;
1126
        }
1127
1128
        av_assert1(first_slice);
1129
1130
538
        if (flush_changes)
1131
6
            ff_h264_flush_change(h);
1132
1133
538
        if ((ret = get_pixel_format(h, 1)) < 0)
1134
            return ret;
1135
538
        h->avctx->pix_fmt = ret;
1136
1137
538
        av_log(h->avctx, AV_LOG_VERBOSE, "Reinit context to %dx%d, "
1138
538
               "pix_fmt: %s\n", h->width, h->height, av_get_pix_fmt_name(h->avctx->pix_fmt));
1139
1140
538
        if ((ret = h264_slice_header_init(h)) < 0) {
1141
            av_log(h->avctx, AV_LOG_ERROR,
1142
                   "h264_slice_header_init() failed\n");
1143
            return ret;
1144
        }
1145
    }
1146
1147
26111
    return 0;
1148
}
1149
1150
22774
static int h264_export_frame_props(H264Context *h)
1151
{
1152
22774
    const SPS *sps = h->ps.sps;
1153
22774
    H264Picture *cur = h->cur_pic_ptr;
1154
22774
    AVFrame *out = cur->f;
1155
1156
22774
    out->interlaced_frame = 0;
1157
22774
    out->repeat_pict      = 0;
1158
1159
    /* Signal interlacing information externally. */
1160
    /* Prioritize picture timing SEI information over used
1161
     * decoding process if it exists. */
1162
22774
    if (h->sei.picture_timing.present) {
1163
1358
        int ret = ff_h264_sei_process_picture_timing(&h->sei.picture_timing, sps,
1164
1358
                                                     h->avctx);
1165
1358
        if (ret < 0) {
1166
            av_log(h->avctx, AV_LOG_ERROR, "Error processing a picture timing SEI\n");
1167
            if (h->avctx->err_recognition & AV_EF_EXPLODE)
1168
                return ret;
1169
            h->sei.picture_timing.present = 0;
1170
        }
1171
    }
1172
1173

24124
    if (sps->pic_struct_present_flag && h->sei.picture_timing.present) {
1174
1350
        H264SEIPictureTiming *pt = &h->sei.picture_timing;
1175

1350
        switch (pt->pic_struct) {
1176
132
        case H264_SEI_PIC_STRUCT_FRAME:
1177
132
            break;
1178
347
        case H264_SEI_PIC_STRUCT_TOP_FIELD:
1179
        case H264_SEI_PIC_STRUCT_BOTTOM_FIELD:
1180
347
            out->interlaced_frame = 1;
1181
347
            break;
1182
704
        case H264_SEI_PIC_STRUCT_TOP_BOTTOM:
1183
        case H264_SEI_PIC_STRUCT_BOTTOM_TOP:
1184

704
            if (FIELD_OR_MBAFF_PICTURE(h))
1185
700
                out->interlaced_frame = 1;
1186
            else
1187
                // try to flag soft telecine progressive
1188
4
                out->interlaced_frame = h->prev_interlaced_frame;
1189
704
            break;
1190
167
        case H264_SEI_PIC_STRUCT_TOP_BOTTOM_TOP:
1191
        case H264_SEI_PIC_STRUCT_BOTTOM_TOP_BOTTOM:
1192
            /* Signal the possibility of telecined film externally
1193
             * (pic_struct 5,6). From these hints, let the applications
1194
             * decide if they apply deinterlacing. */
1195
167
            out->repeat_pict = 1;
1196
167
            break;
1197
        case H264_SEI_PIC_STRUCT_FRAME_DOUBLING:
1198
            out->repeat_pict = 2;
1199
            break;
1200
        case H264_SEI_PIC_STRUCT_FRAME_TRIPLING:
1201
            out->repeat_pict = 4;
1202
            break;
1203
        }
1204
1205
1350
        if ((pt->ct_type & 3) &&
1206
651
            pt->pic_struct <= H264_SEI_PIC_STRUCT_BOTTOM_TOP)
1207
487
            out->interlaced_frame = (pt->ct_type & (1 << 1)) != 0;
1208
    } else {
1209
        /* Derive interlacing flag from used decoding process. */
1210

21424
        out->interlaced_frame = FIELD_OR_MBAFF_PICTURE(h);
1211
    }
1212
22774
    h->prev_interlaced_frame = out->interlaced_frame;
1213
1214
22774
    if (cur->field_poc[0] != cur->field_poc[1]) {
1215
        /* Derive top_field_first from field pocs. */
1216
3268
        out->top_field_first = cur->field_poc[0] < cur->field_poc[1];
1217
    } else {
1218

19506
        if (sps->pic_struct_present_flag && h->sei.picture_timing.present) {
1219
            /* Use picture timing SEI information. Even if it is a
1220
             * information of a past frame, better than nothing. */
1221
139
            if (h->sei.picture_timing.pic_struct == H264_SEI_PIC_STRUCT_TOP_BOTTOM ||
1222
138
                h->sei.picture_timing.pic_struct == H264_SEI_PIC_STRUCT_TOP_BOTTOM_TOP)
1223
3
                out->top_field_first = 1;
1224
            else
1225
136
                out->top_field_first = 0;
1226
19367
        } else if (out->interlaced_frame) {
1227
            /* Default to top field first when pic_struct_present_flag
1228
             * is not set but interlaced frame detected */
1229
2554
            out->top_field_first = 1;
1230
        } else {
1231
            /* Most likely progressive */
1232
16813
            out->top_field_first = 0;
1233
        }
1234
    }
1235
1236
22774
    if (h->sei.frame_packing.present &&
1237
        h->sei.frame_packing.arrangement_type <= 6 &&
1238
        h->sei.frame_packing.content_interpretation_type > 0 &&
1239
        h->sei.frame_packing.content_interpretation_type < 3) {
1240
        H264SEIFramePacking *fp = &h->sei.frame_packing;
1241
        AVStereo3D *stereo = av_stereo3d_create_side_data(out);
1242
        if (stereo) {
1243
        switch (fp->arrangement_type) {
1244
        case H264_SEI_FPA_TYPE_CHECKERBOARD:
1245
            stereo->type = AV_STEREO3D_CHECKERBOARD;
1246
            break;
1247
        case H264_SEI_FPA_TYPE_INTERLEAVE_COLUMN:
1248
            stereo->type = AV_STEREO3D_COLUMNS;
1249
            break;
1250
        case H264_SEI_FPA_TYPE_INTERLEAVE_ROW:
1251
            stereo->type = AV_STEREO3D_LINES;
1252
            break;
1253
        case H264_SEI_FPA_TYPE_SIDE_BY_SIDE:
1254
            if (fp->quincunx_sampling_flag)
1255
                stereo->type = AV_STEREO3D_SIDEBYSIDE_QUINCUNX;
1256
            else
1257
                stereo->type = AV_STEREO3D_SIDEBYSIDE;
1258
            break;
1259
        case H264_SEI_FPA_TYPE_TOP_BOTTOM:
1260
            stereo->type = AV_STEREO3D_TOPBOTTOM;
1261
            break;
1262
        case H264_SEI_FPA_TYPE_INTERLEAVE_TEMPORAL:
1263
            stereo->type = AV_STEREO3D_FRAMESEQUENCE;
1264
            break;
1265
        case H264_SEI_FPA_TYPE_2D:
1266
            stereo->type = AV_STEREO3D_2D;
1267
            break;
1268
        }
1269
1270
        if (fp->content_interpretation_type == 2)
1271
            stereo->flags = AV_STEREO3D_FLAG_INVERT;
1272
1273
        if (fp->arrangement_type == H264_SEI_FPA_TYPE_INTERLEAVE_TEMPORAL) {
1274
            if (fp->current_frame_is_frame0_flag)
1275
                stereo->view = AV_STEREO3D_VIEW_LEFT;
1276
            else
1277
                stereo->view = AV_STEREO3D_VIEW_RIGHT;
1278
        }
1279
        }
1280
    }
1281
1282
22774
    if (h->sei.display_orientation.present &&
1283
1
        (h->sei.display_orientation.anticlockwise_rotation ||
1284
1
         h->sei.display_orientation.hflip ||
1285
1
         h->sei.display_orientation.vflip)) {
1286
        H264SEIDisplayOrientation *o = &h->sei.display_orientation;
1287
        double angle = o->anticlockwise_rotation * 360 / (double) (1 << 16);
1288
        AVFrameSideData *rotation = av_frame_new_side_data(out,
1289
                                                           AV_FRAME_DATA_DISPLAYMATRIX,
1290
                                                           sizeof(int32_t) * 9);
1291
        if (rotation) {
1292
            av_display_rotation_set((int32_t *)rotation->data, angle);
1293
            av_display_matrix_flip((int32_t *)rotation->data,
1294
                                   o->hflip, o->vflip);
1295
        }
1296
    }
1297
1298
22774
    if (h->sei.afd.present) {
1299
239
        AVFrameSideData *sd = av_frame_new_side_data(out, AV_FRAME_DATA_AFD,
1300
                                                     sizeof(uint8_t));
1301
1302
239
        if (sd) {
1303
239
            *sd->data = h->sei.afd.active_format_description;
1304
239
            h->sei.afd.present = 0;
1305
        }
1306
    }
1307
1308
22774
    if (h->sei.a53_caption.buf_ref) {
1309
1
        H264SEIA53Caption *a53 = &h->sei.a53_caption;
1310
1311
1
        AVFrameSideData *sd = av_frame_new_side_data_from_buf(out, AV_FRAME_DATA_A53_CC, a53->buf_ref);
1312
1
        if (!sd)
1313
            av_buffer_unref(&a53->buf_ref);
1314
1
        a53->buf_ref = NULL;
1315
1316
1
        h->avctx->properties |= FF_CODEC_PROPERTY_CLOSED_CAPTIONS;
1317
    }
1318
1319
22948
    for (int i = 0; i < h->sei.unregistered.nb_buf_ref; i++) {
1320
174
        H264SEIUnregistered *unreg = &h->sei.unregistered;
1321
1322
174
        if (unreg->buf_ref[i]) {
1323
174
            AVFrameSideData *sd = av_frame_new_side_data_from_buf(out,
1324
                    AV_FRAME_DATA_SEI_UNREGISTERED,
1325
174
                    unreg->buf_ref[i]);
1326
174
            if (!sd)
1327
                av_buffer_unref(&unreg->buf_ref[i]);
1328
174
            unreg->buf_ref[i] = NULL;
1329
        }
1330
    }
1331
22774
    h->sei.unregistered.nb_buf_ref = 0;
1332
1333
22774
    if (h->sei.picture_timing.timecode_cnt > 0) {
1334
        uint32_t *tc_sd;
1335
        char tcbuf[AV_TIMECODE_STR_SIZE];
1336
1337
651
        AVFrameSideData *tcside = av_frame_new_side_data(out,
1338
                                                         AV_FRAME_DATA_S12M_TIMECODE,
1339
                                                         sizeof(uint32_t)*4);
1340
651
        if (!tcside)
1341
            return AVERROR(ENOMEM);
1342
1343
651
        tc_sd = (uint32_t*)tcside->data;
1344
651
        tc_sd[0] = h->sei.picture_timing.timecode_cnt;
1345
1346
1603
        for (int i = 0; i < tc_sd[0]; i++) {
1347
952
            int drop = h->sei.picture_timing.timecode[i].dropframe;
1348
952
            int   hh = h->sei.picture_timing.timecode[i].hours;
1349
952
            int   mm = h->sei.picture_timing.timecode[i].minutes;
1350
952
            int   ss = h->sei.picture_timing.timecode[i].seconds;
1351
952
            int   ff = h->sei.picture_timing.timecode[i].frame;
1352
1353
952
            tc_sd[i + 1] = av_timecode_get_smpte(h->avctx->framerate, drop, hh, mm, ss, ff);
1354
952
            av_timecode_make_smpte_tc_string2(tcbuf, h->avctx->framerate, tc_sd[i + 1], 0, 0);
1355
952
            av_dict_set(&out->metadata, "timecode", tcbuf, 0);
1356
        }
1357
651
        h->sei.picture_timing.timecode_cnt = 0;
1358
    }
1359
1360
22774
    return 0;
1361
}
1362
1363
22774
static int h264_select_output_frame(H264Context *h)
1364
{
1365
22774
    const SPS *sps = h->ps.sps;
1366
22774
    H264Picture *out = h->cur_pic_ptr;
1367
22774
    H264Picture *cur = h->cur_pic_ptr;
1368
    int i, pics, out_of_order, out_idx;
1369
1370
22774
    cur->mmco_reset = h->mmco_reset;
1371
22774
    h->mmco_reset = 0;
1372
1373
22774
    if (sps->bitstream_restriction_flag ||
1374
19459
        h->avctx->strict_std_compliance >= FF_COMPLIANCE_STRICT) {
1375
3315
        h->avctx->has_b_frames = FFMAX(h->avctx->has_b_frames, sps->num_reorder_frames);
1376
    }
1377
1378
372772
    for (i = 0; 1; i++) {
1379

372772
        if(i == MAX_DELAYED_PIC_COUNT || cur->poc < h->last_pocs[i]){
1380
22774
            if(i)
1381
22774
                h->last_pocs[i-1] = cur->poc;
1382
22774
            break;
1383
349998
        } else if(i) {
1384
327224
            h->last_pocs[i-1]= h->last_pocs[i];
1385
        }
1386
    }
1387
22774
    out_of_order = MAX_DELAYED_PIC_COUNT - i;
1388
22774
    if(   cur->f->pict_type == AV_PICTURE_TYPE_B
1389

15257
       || (h->last_pocs[MAX_DELAYED_PIC_COUNT-2] > INT_MIN && h->last_pocs[MAX_DELAYED_PIC_COUNT-1] - (int64_t)h->last_pocs[MAX_DELAYED_PIC_COUNT-2] > 2))
1390
12110
        out_of_order = FFMAX(out_of_order, 1);
1391
22774
    if (out_of_order == MAX_DELAYED_PIC_COUNT) {
1392
        av_log(h->avctx, AV_LOG_VERBOSE, "Invalid POC %d<%d\n", cur->poc, h->last_pocs[0]);
1393
        for (i = 1; i < MAX_DELAYED_PIC_COUNT; i++)
1394
            h->last_pocs[i] = INT_MIN;
1395
        h->last_pocs[0] = cur->poc;
1396
        cur->mmco_reset = 1;
1397

22774
    } else if(h->avctx->has_b_frames < out_of_order && !sps->bitstream_restriction_flag){
1398
136
        int loglevel = h->avctx->frame_number > 1 ? AV_LOG_WARNING : AV_LOG_VERBOSE;
1399
136
        av_log(h->avctx, loglevel, "Increasing reorder buffer to %d\n", out_of_order);
1400
136
        h->avctx->has_b_frames = out_of_order;
1401
    }
1402
1403
22774
    pics = 0;
1404
51757
    while (h->delayed_pic[pics])
1405
28983
        pics++;
1406
1407
22774
    av_assert0(pics <= MAX_DELAYED_PIC_COUNT);
1408
1409
22774
    h->delayed_pic[pics++] = cur;
1410
22774
    if (cur->reference == 0)
1411
21314
        cur->reference = DELAYED_PIC_REF;
1412
1413
22774
    out     = h->delayed_pic[0];
1414
22774
    out_idx = 0;
1415
48862
    for (i = 1; h->delayed_pic[i] &&
1416
26534
                !h->delayed_pic[i]->f->key_frame &&
1417
26175
                !h->delayed_pic[i]->mmco_reset;
1418
26088
         i++)
1419
26088
        if (h->delayed_pic[i]->poc < out->poc) {
1420
9697
            out     = h->delayed_pic[i];
1421
9697
            out_idx = i;
1422
        }
1423
22774
    if (h->avctx->has_b_frames == 0 &&
1424

9635
        (h->delayed_pic[0]->f->key_frame || h->delayed_pic[0]->mmco_reset))
1425
783
        h->next_outputed_poc = INT_MIN;
1426
22774
    out_of_order = out->poc < h->next_outputed_poc;
1427
1428

22774
    if (out_of_order || pics > h->avctx->has_b_frames) {
1429
22289
        out->reference &= ~DELAYED_PIC_REF;
1430
58780
        for (i = out_idx; h->delayed_pic[i]; i++)
1431
36491
            h->delayed_pic[i] = h->delayed_pic[i + 1];
1432
    }
1433

22774
    if (!out_of_order && pics > h->avctx->has_b_frames) {
1434
22175
        h->next_output_pic = out;
1435


22175
        if (out_idx == 0 && h->delayed_pic[0] && (h->delayed_pic[0]->f->key_frame || h->delayed_pic[0]->mmco_reset)) {
1436
86
            h->next_outputed_poc = INT_MIN;
1437
        } else
1438
22089
            h->next_outputed_poc = out->poc;
1439
1440
22175
        if (out->recovered) {
1441
            // We have reached an recovery point and all frames after it in
1442
            // display order are "recovered".
1443
22086
            h->frame_recovered |= FRAME_RECOVERED_SEI;
1444
        }
1445
22175
        out->recovered |= !!(h->frame_recovered & FRAME_RECOVERED_SEI);
1446
1447
22175
        if (!out->recovered) {
1448
78
            if (!(h->avctx->flags & AV_CODEC_FLAG_OUTPUT_CORRUPT) &&
1449
78
                !(h->avctx->flags2 & AV_CODEC_FLAG2_SHOW_ALL)) {
1450
78
                h->next_output_pic = NULL;
1451
            } else {
1452
                out->f->flags |= AV_FRAME_FLAG_CORRUPT;
1453
            }
1454
        }
1455
    } else {
1456
599
        av_log(h->avctx, AV_LOG_DEBUG, "no picture %s\n", out_of_order ? "ooo" : "");
1457
    }
1458
1459
22774
    return 0;
1460
}
1461
1462
/* This function is called right after decoding the slice header for a first
1463
 * slice in a field (or a frame). It decides whether we are decoding a new frame
1464
 * or a second field in a pair and does the necessary setup.
1465
 */
1466
26111
static int h264_field_start(H264Context *h, const H264SliceContext *sl,
1467
                            const H2645NAL *nal, int first_slice)
1468
{
1469
    int i;
1470
    const SPS *sps;
1471
1472
    int last_pic_structure, last_pic_droppable, ret;
1473
1474
26111
    ret = h264_init_ps(h, sl, first_slice);
1475
26111
    if (ret < 0)
1476
        return ret;
1477
1478
26111
    sps = h->ps.sps;
1479
1480

26111
    if (sps && sps->bitstream_restriction_flag &&
1481
3647
        h->avctx->has_b_frames < sps->num_reorder_frames) {
1482
25
        h->avctx->has_b_frames = sps->num_reorder_frames;
1483
    }
1484
1485
26111
    last_pic_droppable   = h->droppable;
1486
26111
    last_pic_structure   = h->picture_structure;
1487
26111
    h->droppable         = (nal->ref_idc == 0);
1488
26111
    h->picture_structure = sl->picture_structure;
1489
1490
26111
    h->poc.frame_num        = sl->frame_num;
1491
26111
    h->poc.poc_lsb          = sl->poc_lsb;
1492
26111
    h->poc.delta_poc_bottom = sl->delta_poc_bottom;
1493
26111
    h->poc.delta_poc[0]     = sl->delta_poc[0];
1494
26111
    h->poc.delta_poc[1]     = sl->delta_poc[1];
1495
1496
    /* Shorten frame num gaps so we don't have to allocate reference
1497
     * frames just to throw them away */
1498
26111
    if (h->poc.frame_num != h->poc.prev_frame_num) {
1499
14645
        int unwrap_prev_frame_num = h->poc.prev_frame_num;
1500
14645
        int max_frame_num         = 1 << sps->log2_max_frame_num;
1501
1502
14645
        if (unwrap_prev_frame_num > h->poc.frame_num)
1503
145
            unwrap_prev_frame_num -= max_frame_num;
1504
1505
14645
        if ((h->poc.frame_num - unwrap_prev_frame_num) > sps->ref_frame_count) {
1506
73
            unwrap_prev_frame_num = (h->poc.frame_num - sps->ref_frame_count) - 1;
1507
73
            if (unwrap_prev_frame_num < 0)
1508
2
                unwrap_prev_frame_num += max_frame_num;
1509
1510
73
            h->poc.prev_frame_num = unwrap_prev_frame_num;
1511
        }
1512
    }
1513
1514
    /* See if we have a decoded first field looking for a pair...
1515
     * Here, we're using that to see if we should mark previously
1516
     * decode frames as "finished".
1517
     * We have to do that before the "dummy" in-between frame allocation,
1518
     * since that can modify h->cur_pic_ptr. */
1519
26111
    if (h->first_field) {
1520
3332
        int last_field = last_pic_structure == PICT_BOTTOM_FIELD;
1521
3332
        av_assert0(h->cur_pic_ptr);
1522
3332
        av_assert0(h->cur_pic_ptr->f->buf[0]);
1523
        assert(h->cur_pic_ptr->reference != DELAYED_PIC_REF);
1524
1525
        /* Mark old field/frame as completed */
1526
3332
        if (h->cur_pic_ptr->tf.owner[last_field] == h->avctx) {
1527
3332
            ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, last_field);
1528
        }
1529
1530
        /* figure out if we have a complementary field pair */
1531

3332
        if (!FIELD_PICTURE(h) || h->picture_structure == last_pic_structure) {
1532
            /* Previous field is unmatched. Don't display it, but let it
1533
             * remain for reference if marked as such. */
1534
            if (last_pic_structure != PICT_FRAME) {
1535
                ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX,
1536
                                          last_pic_structure == PICT_TOP_FIELD);
1537
            }
1538
        } else {
1539
3332
            if (h->cur_pic_ptr->frame_num != h->poc.frame_num) {
1540
                /* This and previous field were reference, but had
1541
                 * different frame_nums. Consider this field first in
1542
                 * pair. Throw away previous field except for reference
1543
                 * purposes. */
1544
                if (last_pic_structure != PICT_FRAME) {
1545
                    ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX,
1546
                                              last_pic_structure == PICT_TOP_FIELD);
1547
                }
1548
            } else {
1549
                /* Second field in complementary pair */
1550

3332
                if (!((last_pic_structure   == PICT_TOP_FIELD &&
1551
3324
                       h->picture_structure == PICT_BOTTOM_FIELD) ||
1552
8
                      (last_pic_structure   == PICT_BOTTOM_FIELD &&
1553
8
                       h->picture_structure == PICT_TOP_FIELD))) {
1554
                    av_log(h->avctx, AV_LOG_ERROR,
1555
                           "Invalid field mode combination %d/%d\n",
1556
                           last_pic_structure, h->picture_structure);
1557
                    h->picture_structure = last_pic_structure;
1558
                    h->droppable         = last_pic_droppable;
1559
                    return AVERROR_INVALIDDATA;
1560
3332
                } else if (last_pic_droppable != h->droppable) {
1561
                    avpriv_request_sample(h->avctx,
1562
                                          "Found reference and non-reference fields in the same frame, which");
1563
                    h->picture_structure = last_pic_structure;
1564
                    h->droppable         = last_pic_droppable;
1565
                    return AVERROR_PATCHWELCOME;
1566
                }
1567
            }
1568
        }
1569
    }
1570
1571

26804
    while (h->poc.frame_num != h->poc.prev_frame_num && !h->first_field &&
1572
15338
           h->poc.frame_num != (h->poc.prev_frame_num + 1) % (1 << sps->log2_max_frame_num)) {
1573
693
        H264Picture *prev = h->short_ref_count ? h->short_ref[0] : NULL;
1574
693
        av_log(h->avctx, AV_LOG_DEBUG, "Frame num gap %d %d\n",
1575
               h->poc.frame_num, h->poc.prev_frame_num);
1576
693
        if (!sps->gaps_in_frame_num_allowed_flag)
1577
1972
            for(i=0; i<FF_ARRAY_ELEMS(h->last_pocs); i++)
1578
1856
                h->last_pocs[i] = INT_MIN;
1579
693
        ret = h264_frame_start(h);
1580
693
        if (ret < 0) {
1581
            h->first_field = 0;
1582
            return ret;
1583
        }
1584
1585
693
        h->poc.prev_frame_num++;
1586
693
        h->poc.prev_frame_num        %= 1 << sps->log2_max_frame_num;
1587
693
        h->cur_pic_ptr->frame_num = h->poc.prev_frame_num;
1588
693
        h->cur_pic_ptr->invalid_gap = !sps->gaps_in_frame_num_allowed_flag;
1589
693
        ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, 0);
1590
693
        ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, 1);
1591
1592
693
        h->explicit_ref_marking = 0;
1593
693
        ret = ff_h264_execute_ref_pic_marking(h);
1594

693
        if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE))
1595
            return ret;
1596
        /* Error concealment: If a ref is missing, copy the previous ref
1597
         * in its place.
1598
         * FIXME: Avoiding a memcpy would be nice, but ref handling makes
1599
         * many assumptions about there being no actual duplicates.
1600
         * FIXME: This does not copy padding for out-of-frame motion
1601
         * vectors.  Given we are concealing a lost frame, this probably
1602
         * is not noticeable by comparison, but it should be fixed. */
1603
693
        if (h->short_ref_count) {
1604
693
            int c[4] = {
1605
693
                1<<(h->ps.sps->bit_depth_luma-1),
1606
693
                1<<(h->ps.sps->bit_depth_chroma-1),
1607
693
                1<<(h->ps.sps->bit_depth_chroma-1),
1608
                -1
1609
            };
1610
1611
693
            if (prev &&
1612
669
                h->short_ref[0]->f->width == prev->f->width &&
1613
669
                h->short_ref[0]->f->height == prev->f->height &&
1614
669
                h->short_ref[0]->f->format == prev->f->format) {
1615
669
                ff_thread_await_progress(&prev->tf, INT_MAX, 0);
1616
669
                if (prev->field_picture)
1617
28
                    ff_thread_await_progress(&prev->tf, INT_MAX, 1);
1618
669
                ff_thread_release_buffer(h->avctx, &h->short_ref[0]->tf);
1619
669
                h->short_ref[0]->tf.f = h->short_ref[0]->f;
1620
669
                ret = ff_thread_ref_frame(&h->short_ref[0]->tf, &prev->tf);
1621
669
                if (ret < 0)
1622
                    return ret;
1623
669
                h->short_ref[0]->poc = prev->poc + 2U;
1624
669
                ff_thread_report_progress(&h->short_ref[0]->tf, INT_MAX, 0);
1625
669
                if (h->short_ref[0]->field_picture)
1626
28
                    ff_thread_report_progress(&h->short_ref[0]->tf, INT_MAX, 1);
1627

24
            } else if (!h->frame_recovered && !h->avctx->hwaccel)
1628
17
                ff_color_frame(h->short_ref[0]->f, c);
1629
693
            h->short_ref[0]->frame_num = h->poc.prev_frame_num;
1630
        }
1631
    }
1632
1633
    /* See if we have a decoded first field looking for a pair...
1634
     * We're using that to see whether to continue decoding in that
1635
     * frame, or to allocate a new one. */
1636
26111
    if (h->first_field) {
1637
3332
        av_assert0(h->cur_pic_ptr);
1638
3332
        av_assert0(h->cur_pic_ptr->f->buf[0]);
1639
        assert(h->cur_pic_ptr->reference != DELAYED_PIC_REF);
1640
1641
        /* figure out if we have a complementary field pair */
1642

3332
        if (!FIELD_PICTURE(h) || h->picture_structure == last_pic_structure) {
1643
            /* Previous field is unmatched. Don't display it, but let it
1644
             * remain for reference if marked as such. */
1645
            h->missing_fields ++;
1646
            h->cur_pic_ptr = NULL;
1647
            h->first_field = FIELD_PICTURE(h);
1648
        } else {
1649
3332
            h->missing_fields = 0;
1650
3332
            if (h->cur_pic_ptr->frame_num != h->poc.frame_num) {
1651
                ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX,
1652
                                          h->picture_structure==PICT_BOTTOM_FIELD);
1653
                /* This and the previous field had different frame_nums.
1654
                 * Consider this field first in pair. Throw away previous
1655
                 * one except for reference purposes. */
1656
                h->first_field = 1;
1657
                h->cur_pic_ptr = NULL;
1658
3332
            } else if (h->cur_pic_ptr->reference & DELAYED_PIC_REF) {
1659
                /* This frame was already output, we cannot draw into it
1660
                 * anymore.
1661
                 */
1662
                h->first_field = 1;
1663
                h->cur_pic_ptr = NULL;
1664
            } else {
1665
                /* Second field in complementary pair */
1666
3332
                h->first_field = 0;
1667
            }
1668
        }
1669
    } else {
1670
        /* Frame or first field in a potentially complementary pair */
1671
22779
        h->first_field = FIELD_PICTURE(h);
1672
    }
1673
1674

26111
    if (!FIELD_PICTURE(h) || h->first_field) {
1675
22779
        if (h264_frame_start(h) < 0) {
1676
            h->first_field = 0;
1677
            return AVERROR_INVALIDDATA;
1678
        }
1679
    } else {
1680
3332
        int field = h->picture_structure == PICT_BOTTOM_FIELD;
1681
3332
        release_unused_pictures(h, 0);
1682
3332
        h->cur_pic_ptr->tf.owner[field] = h->avctx;
1683
    }
1684
    /* Some macroblocks can be accessed before they're available in case
1685
    * of lost slices, MBAFF or threading. */
1686
26111
    if (FIELD_PICTURE(h)) {
1687
170961
        for(i = (h->picture_structure == PICT_BOTTOM_FIELD); i<h->mb_height; i++)
1688
164292
            memset(h->slice_table + i*h->mb_stride, -1, (h->mb_stride - (i+1==h->mb_height)) * sizeof(*h->slice_table));
1689
    } else {
1690
19442
        memset(h->slice_table, -1,
1691
19442
            (h->mb_height * h->mb_stride - 1) * sizeof(*h->slice_table));
1692
    }
1693
1694
26111
    ret = ff_h264_init_poc(h->cur_pic_ptr->field_poc, &h->cur_pic_ptr->poc,
1695
                     h->ps.sps, &h->poc, h->picture_structure, nal->ref_idc);
1696
26111
    if (ret < 0)
1697
        return ret;
1698
1699
26111
    memcpy(h->mmco, sl->mmco, sl->nb_mmco * sizeof(*h->mmco));
1700
26111
    h->nb_mmco = sl->nb_mmco;
1701
26111
    h->explicit_ref_marking = sl->explicit_ref_marking;
1702
1703
26111
    h->picture_idr = nal->type == H264_NAL_IDR_SLICE;
1704
1705
26111
    if (h->sei.recovery_point.recovery_frame_cnt >= 0) {
1706
60
        const int sei_recovery_frame_cnt = h->sei.recovery_point.recovery_frame_cnt;
1707
1708

60
        if (h->poc.frame_num != sei_recovery_frame_cnt || sl->slice_type_nos != AV_PICTURE_TYPE_I)
1709
47
            h->valid_recovery_point = 1;
1710
1711
60
        if (   h->recovery_frame < 0
1712
1
            || av_mod_uintp2(h->recovery_frame - h->poc.frame_num, h->ps.sps->log2_max_frame_num) > sei_recovery_frame_cnt) {
1713
59
            h->recovery_frame = av_mod_uintp2(h->poc.frame_num + sei_recovery_frame_cnt, h->ps.sps->log2_max_frame_num);
1714
1715
59
            if (!h->valid_recovery_point)
1716
6
                h->recovery_frame = h->poc.frame_num;
1717
        }
1718
    }
1719
1720
26111
    h->cur_pic_ptr->f->key_frame |= (nal->type == H264_NAL_IDR_SLICE);
1721
1722
26111
    if (nal->type == H264_NAL_IDR_SLICE ||
1723

25097
        (h->recovery_frame == h->poc.frame_num && nal->ref_idc)) {
1724
1061
        h->recovery_frame         = -1;
1725
1061
        h->cur_pic_ptr->recovered = 1;
1726
    }
1727
    // If we have an IDR, all frames after it in decoded order are
1728
    // "recovered".
1729
26111
    if (nal->type == H264_NAL_IDR_SLICE)
1730
1014
        h->frame_recovered |= FRAME_RECOVERED_IDR;
1731
#if 1
1732
26111
    h->cur_pic_ptr->recovered |= h->frame_recovered;
1733
#else
1734
    h->cur_pic_ptr->recovered |= !!(h->frame_recovered & FRAME_RECOVERED_IDR);
1735
#endif
1736
1737
    /* Set the frame properties/side data. Only done for the second field in
1738
     * field coded frames, since some SEI information is present for each field
1739
     * and is merged by the SEI parsing code. */
1740

26111
    if (!FIELD_PICTURE(h) || !h->first_field || h->missing_fields > 1) {
1741
22774
        ret = h264_export_frame_props(h);
1742
22774
        if (ret < 0)
1743
            return ret;
1744
1745
22774
        ret = h264_select_output_frame(h);
1746
22774
        if (ret < 0)
1747
            return ret;
1748
    }
1749
1750
26111
    return 0;
1751
}
1752
1753
34685
static int h264_slice_header_parse(const H264Context *h, H264SliceContext *sl,
1754
                                   const H2645NAL *nal)
1755
{
1756
    const SPS *sps;
1757
    const PPS *pps;
1758
    int ret;
1759
    unsigned int slice_type, tmp, i;
1760
    int field_pic_flag, bottom_field_flag;
1761

34685
    int first_slice = sl == h->slice_ctx && !h->current_slice;
1762
    int picture_structure;
1763
1764
34685
    if (first_slice)
1765
26378
        av_assert0(!h->setup_finished);
1766
1767
34685
    sl->first_mb_addr = get_ue_golomb_long(&sl->gb);
1768
1769
34685
    slice_type = get_ue_golomb_31(&sl->gb);
1770
34685
    if (slice_type > 9) {
1771
        av_log(h->avctx, AV_LOG_ERROR,
1772
               "slice type %d too large at %d\n",
1773
               slice_type, sl->first_mb_addr);
1774
        return AVERROR_INVALIDDATA;
1775
    }
1776
34685
    if (slice_type > 4) {
1777
21749
        slice_type -= 5;
1778
21749
        sl->slice_type_fixed = 1;
1779
    } else
1780
12936
        sl->slice_type_fixed = 0;
1781
1782
34685
    slice_type         = ff_h264_golomb_to_pict_type[slice_type];
1783
34685
    sl->slice_type     = slice_type;
1784
34685
    sl->slice_type_nos = slice_type & 3;
1785
1786
34685
    if (nal->type  == H264_NAL_IDR_SLICE &&
1787
2078
        sl->slice_type_nos != AV_PICTURE_TYPE_I) {
1788
        av_log(h->avctx, AV_LOG_ERROR, "A non-intra slice in an IDR NAL unit.\n");
1789
        return AVERROR_INVALIDDATA;
1790
    }
1791
1792
34685
    sl->pps_id = get_ue_golomb(&sl->gb);
1793
34685
    if (sl->pps_id >= MAX_PPS_COUNT) {
1794
        av_log(h->avctx, AV_LOG_ERROR, "pps_id %u out of range\n", sl->pps_id);
1795
        return AVERROR_INVALIDDATA;
1796
    }
1797
34685
    if (!h->ps.pps_list[sl->pps_id]) {
1798
389
        av_log(h->avctx, AV_LOG_ERROR,
1799
               "non-existing PPS %u referenced\n",
1800
               sl->pps_id);
1801
389
        return AVERROR_INVALIDDATA;
1802
    }
1803
34296
    pps = (const PPS*)h->ps.pps_list[sl->pps_id]->data;
1804
34296
    sps = pps->sps;
1805
1806
34296
    sl->frame_num = get_bits(&sl->gb, sps->log2_max_frame_num);
1807
34296
    if (!first_slice) {
1808
8298
        if (h->poc.frame_num != sl->frame_num) {
1809
            av_log(h->avctx, AV_LOG_ERROR, "Frame num change from %d to %d\n",
1810
                   h->poc.frame_num, sl->frame_num);
1811
            return AVERROR_INVALIDDATA;
1812
        }
1813
    }
1814
1815
34296
    sl->mb_mbaff       = 0;
1816
1817
34296
    if (sps->frame_mbs_only_flag) {
1818
20355
        picture_structure = PICT_FRAME;
1819
    } else {
1820

13941
        if (!sps->direct_8x8_inference_flag && slice_type == AV_PICTURE_TYPE_B) {
1821
            av_log(h->avctx, AV_LOG_ERROR, "This stream was generated by a broken encoder, invalid 8x8 inference\n");
1822
            return -1;
1823
        }
1824
13941
        field_pic_flag = get_bits1(&sl->gb);
1825
13941
        if (field_pic_flag) {
1826
8676
            bottom_field_flag = get_bits1(&sl->gb);
1827
8676
            picture_structure = PICT_TOP_FIELD + bottom_field_flag;
1828
        } else {
1829
5265
            picture_structure = PICT_FRAME;
1830
        }
1831
    }
1832
34296
    sl->picture_structure      = picture_structure;
1833
34296
    sl->mb_field_decoding_flag = picture_structure != PICT_FRAME;
1834
1835
34296
    if (picture_structure == PICT_FRAME) {
1836
25620
        sl->curr_pic_num = sl->frame_num;
1837
25620
        sl->max_pic_num  = 1 << sps->log2_max_frame_num;
1838
    } else {
1839
8676
        sl->curr_pic_num = 2 * sl->frame_num + 1;
1840
8676
        sl->max_pic_num  = 1 << (sps->log2_max_frame_num + 1);
1841
    }
1842
1843
34296
    if (nal->type == H264_NAL_IDR_SLICE)
1844
2073
        get_ue_golomb_long(&sl->gb); /* idr_pic_id */
1845
1846
34296
    if (sps->poc_type == 0) {
1847
27128
        sl->poc_lsb = get_bits(&sl->gb, sps->log2_max_poc_lsb);
1848
1849

27128
        if (pps->pic_order_present == 1 && picture_structure == PICT_FRAME)
1850
5830
            sl->delta_poc_bottom = get_se_golomb(&sl->gb);
1851
    }
1852
1853

34296
    if (sps->poc_type == 1 && !sps->delta_pic_order_always_zero_flag) {
1854
2848
        sl->delta_poc[0] = get_se_golomb(&sl->gb);
1855
1856

2848
        if (pps->pic_order_present == 1 && picture_structure == PICT_FRAME)
1857
453
            sl->delta_poc[1] = get_se_golomb(&sl->gb);
1858
    }
1859
1860
34296
    sl->redundant_pic_count = 0;
1861
34296
    if (pps->redundant_pic_cnt_present)
1862
        sl->redundant_pic_count = get_ue_golomb(&sl->gb);
1863
1864
34296
    if (sl->slice_type_nos == AV_PICTURE_TYPE_B)
1865
12076
        sl->direct_spatial_mv_pred = get_bits1(&sl->gb);
1866
1867
34296
    ret = ff_h264_parse_ref_count(&sl->list_count, sl->ref_count,
1868
                                  &sl->gb, pps, sl->slice_type_nos,
1869
34296
                                  picture_structure, h->avctx);
1870
34296
    if (ret < 0)
1871
        return ret;
1872
1873
34296
    if (sl->slice_type_nos != AV_PICTURE_TYPE_I) {
1874
30064
       ret = ff_h264_decode_ref_pic_list_reordering(sl, h->avctx);
1875
30064
       if (ret < 0) {
1876
           sl->ref_count[1] = sl->ref_count[0] = 0;
1877
           return ret;
1878
       }
1879
    }
1880
1881
34296
    sl->pwt.use_weight = 0;
1882
102888
    for (i = 0; i < 2; i++) {
1883
68592
        sl->pwt.luma_weight_flag[i]   = 0;
1884
68592
        sl->pwt.chroma_weight_flag[i] = 0;
1885
    }
1886

34296
    if ((pps->weighted_pred && sl->slice_type_nos == AV_PICTURE_TYPE_P) ||
1887
32976
        (pps->weighted_bipred_idc == 1 &&
1888
278
         sl->slice_type_nos == AV_PICTURE_TYPE_B)) {
1889
1598
        ret = ff_h264_pred_weight_table(&sl->gb, sps, sl->ref_count,
1890
                                  sl->slice_type_nos, &sl->pwt,
1891
1598
                                  picture_structure, h->avctx);
1892
1598
        if (ret < 0)
1893
            return ret;
1894
    }
1895
1896
34296
    sl->explicit_ref_marking = 0;
1897
34296
    if (nal->ref_idc) {
1898
22852
        ret = ff_h264_decode_ref_pic_marking(sl, &sl->gb, nal, h->avctx);
1899

22852
        if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE))
1900
            return AVERROR_INVALIDDATA;
1901
    }
1902
1903

34296
    if (sl->slice_type_nos != AV_PICTURE_TYPE_I && pps->cabac) {
1904
15919
        tmp = get_ue_golomb_31(&sl->gb);
1905
15919
        if (tmp > 2) {
1906
            av_log(h->avctx, AV_LOG_ERROR, "cabac_init_idc %u overflow\n", tmp);
1907
            return AVERROR_INVALIDDATA;
1908
        }
1909
15919
        sl->cabac_init_idc = tmp;
1910
    }
1911
1912
34296
    sl->last_qscale_diff = 0;
1913
34296
    tmp = pps->init_qp + (unsigned)get_se_golomb(&sl->gb);
1914
34296
    if (tmp > 51 + 6 * (sps->bit_depth_luma - 8)) {
1915
        av_log(h->avctx, AV_LOG_ERROR, "QP %u out of range\n", tmp);
1916
        return AVERROR_INVALIDDATA;
1917
    }
1918
34296
    sl->qscale       = tmp;
1919
34296
    sl->chroma_qp[0] = get_chroma_qp(pps, 0, sl->qscale);
1920
34296
    sl->chroma_qp[1] = get_chroma_qp(pps, 1, sl->qscale);
1921
    // FIXME qscale / qp ... stuff
1922
34296
    if (sl->slice_type == AV_PICTURE_TYPE_SP)
1923
        get_bits1(&sl->gb); /* sp_for_switch_flag */
1924
34296
    if (sl->slice_type == AV_PICTURE_TYPE_SP ||
1925
34296
        sl->slice_type == AV_PICTURE_TYPE_SI)
1926
        get_se_golomb(&sl->gb); /* slice_qs_delta */
1927
1928
34296
    sl->deblocking_filter     = 1;
1929
34296
    sl->slice_alpha_c0_offset = 0;
1930
34296
    sl->slice_beta_offset     = 0;
1931
34296
    if (pps->deblocking_filter_parameters_present) {
1932
19840
        tmp = get_ue_golomb_31(&sl->gb);
1933
19840
        if (tmp > 2) {
1934
            av_log(h->avctx, AV_LOG_ERROR,
1935
                   "deblocking_filter_idc %u out of range\n", tmp);
1936
            return AVERROR_INVALIDDATA;
1937
        }
1938
19840
        sl->deblocking_filter = tmp;
1939
19840
        if (sl->deblocking_filter < 2)
1940
17339
            sl->deblocking_filter ^= 1;  // 1<->0
1941
1942
19840
        if (sl->deblocking_filter) {
1943
12905
            int slice_alpha_c0_offset_div2 = get_se_golomb(&sl->gb);
1944
12905
            int slice_beta_offset_div2     = get_se_golomb(&sl->gb);
1945

12905
            if (slice_alpha_c0_offset_div2 >  6 ||
1946
12905
                slice_alpha_c0_offset_div2 < -6 ||
1947
12905
                slice_beta_offset_div2 >  6     ||
1948
                slice_beta_offset_div2 < -6) {
1949
                av_log(h->avctx, AV_LOG_ERROR,
1950
                       "deblocking filter parameters %d %d out of range\n",
1951
                       slice_alpha_c0_offset_div2, slice_beta_offset_div2);
1952
                return AVERROR_INVALIDDATA;
1953
            }
1954
12905
            sl->slice_alpha_c0_offset = slice_alpha_c0_offset_div2 * 2;
1955
12905
            sl->slice_beta_offset     = slice_beta_offset_div2 * 2;
1956
        }
1957
    }
1958
1959
34296
    return 0;
1960
}
1961
1962
/* do all the per-slice initialization needed before we can start decoding the
1963
 * actual MBs */
1964
34216
static int h264_slice_init(H264Context *h, H264SliceContext *sl,
1965
                           const H2645NAL *nal)
1966
{
1967
34216
    int i, j, ret = 0;
1968
1969

34216
    if (h->picture_idr && nal->type != H264_NAL_IDR_SLICE) {
1970
        av_log(h->avctx, AV_LOG_ERROR, "Invalid mix of IDR and non-IDR slices\n");
1971
        return AVERROR_INVALIDDATA;
1972
    }
1973
1974
    av_assert1(h->mb_num == h->mb_width * h->mb_height);
1975

34216
    if (sl->first_mb_addr << FIELD_OR_MBAFF_PICTURE(h) >= h->mb_num ||
1976
34216
        sl->first_mb_addr >= h->mb_num) {
1977
        av_log(h->avctx, AV_LOG_ERROR, "first_mb_in_slice overflow\n");
1978
        return AVERROR_INVALIDDATA;
1979
    }
1980
34216
    sl->resync_mb_x = sl->mb_x =  sl->first_mb_addr % h->mb_width;
1981
68432
    sl->resync_mb_y = sl->mb_y = (sl->first_mb_addr / h->mb_width) <<
1982

34216
                                 FIELD_OR_MBAFF_PICTURE(h);
1983
34216
    if (h->picture_structure == PICT_BOTTOM_FIELD)
1984
4295
        sl->resync_mb_y = sl->mb_y = sl->mb_y + 1;
1985
    av_assert1(sl->mb_y < h->mb_height);
1986
1987
34216
    ret = ff_h264_build_ref_list(h, sl);
1988
34216
    if (ret < 0)
1989
        return ret;
1990
1991
34216
    if (h->ps.pps->weighted_bipred_idc == 2 &&
1992
2426
        sl->slice_type_nos == AV_PICTURE_TYPE_B) {
1993
1589
        implicit_weight_table(h, sl, -1);
1994
1589
        if (FRAME_MBAFF(h)) {
1995
855
            implicit_weight_table(h, sl, 0);
1996
855
            implicit_weight_table(h, sl, 1);
1997
        }
1998
    }
1999
2000

34216
    if (sl->slice_type_nos == AV_PICTURE_TYPE_B && !sl->direct_spatial_mv_pred)
2001
7703
        ff_h264_direct_dist_scale_factor(h, sl);
2002
34216
    if (!h->setup_finished)
2003
34216
        ff_h264_direct_ref_list_init(h, sl);
2004
2005
34216
    if (h->avctx->skip_loop_filter >= AVDISCARD_ALL ||
2006
34216
        (h->avctx->skip_loop_filter >= AVDISCARD_NONKEY &&
2007
         h->nal_unit_type != H264_NAL_IDR_SLICE) ||
2008
34216
        (h->avctx->skip_loop_filter >= AVDISCARD_NONINTRA &&
2009
         sl->slice_type_nos != AV_PICTURE_TYPE_I) ||
2010
34216
        (h->avctx->skip_loop_filter >= AVDISCARD_BIDIR  &&
2011
         sl->slice_type_nos == AV_PICTURE_TYPE_B) ||
2012
34216
        (h->avctx->skip_loop_filter >= AVDISCARD_NONREF &&
2013
         nal->ref_idc == 0))
2014
        sl->deblocking_filter = 0;
2015
2016

34216
    if (sl->deblocking_filter == 1 && h->nb_slice_ctx > 1) {
2017
        if (h->avctx->flags2 & AV_CODEC_FLAG2_FAST) {
2018
            /* Cheat slightly for speed:
2019
             * Do not bother to deblock across slices. */
2020
            sl->deblocking_filter = 2;
2021
        } else {
2022
            h->postpone_filter = 1;
2023
        }
2024
    }
2025
34216
    sl->qp_thresh = 15 -
2026
34216
                   FFMIN(sl->slice_alpha_c0_offset, sl->slice_beta_offset) -
2027
34216
                   FFMAX3(0,
2028
                          h->ps.pps->chroma_qp_index_offset[0],
2029
34216
                          h->ps.pps->chroma_qp_index_offset[1]) +
2030
34216
                   6 * (h->ps.sps->bit_depth_luma - 8);
2031
2032
34216
    sl->slice_num       = ++h->current_slice;
2033
2034
34216
    if (sl->slice_num)
2035
34216
        h->slice_row[(sl->slice_num-1)&(MAX_SLICES-1)]= sl->resync_mb_y;
2036
34216
    if (   h->slice_row[sl->slice_num&(MAX_SLICES-1)] + 3 >= sl->resync_mb_y
2037
31548
        && h->slice_row[sl->slice_num&(MAX_SLICES-1)] <= sl->resync_mb_y
2038
23735
        && sl->slice_num >= MAX_SLICES) {
2039
        //in case of ASO this check needs to be updated depending on how we decide to assign slice numbers in this case
2040
        av_log(h->avctx, AV_LOG_WARNING, "Possibly too many slices (%d >= %d), increase MAX_SLICES and recompile if there are artifacts\n", sl->slice_num, MAX_SLICES);
2041
    }
2042
2043
102648
    for (j = 0; j < 2; j++) {
2044
        int id_list[16];
2045
68432
        int *ref2frm = h->ref2frm[sl->slice_num & (MAX_SLICES - 1)][j];
2046
1163344
        for (i = 0; i < 16; i++) {
2047
1094912
            id_list[i] = 60;
2048

1094912
            if (j < sl->list_count && i < sl->ref_count[j] &&
2049
134229
                sl->ref_list[j][i].parent->f->buf[0]) {
2050
                int k;
2051
134229
                AVBuffer *buf = sl->ref_list[j][i].parent->f->buf[0]->buffer;
2052
459585
                for (k = 0; k < h->short_ref_count; k++)
2053
457652
                    if (h->short_ref[k]->f->buf[0]->buffer == buf) {
2054
132296
                        id_list[i] = k;
2055
132296
                        break;
2056
                    }
2057
144307
                for (k = 0; k < h->long_ref_count; k++)
2058

11870
                    if (h->long_ref[k] && h->long_ref[k]->f->buf[0]->buffer == buf) {
2059
1792
                        id_list[i] = h->short_ref_count + k;
2060
1792
                        break;
2061
                    }
2062
            }
2063
        }
2064
2065
68432
        ref2frm[0] =
2066
68432
        ref2frm[1] = -1;
2067
1163344
        for (i = 0; i < 16; i++)
2068
1094912
            ref2frm[i + 2] = 4 * id_list[i] + (sl->ref_list[j][i].reference & 3);
2069
68432
        ref2frm[18 + 0] =
2070
68432
        ref2frm[18 + 1] = -1;
2071
2258256
        for (i = 16; i < 48; i++)
2072
2189824
            ref2frm[i + 4] = 4 * id_list[(i - 16) >> 1] +
2073
2189824
                             (sl->ref_list[j][i].reference & 3);
2074
    }
2075
2076
34216
    if (h->avctx->debug & FF_DEBUG_PICT_INFO) {
2077
        av_log(h->avctx, AV_LOG_DEBUG,
2078
               "slice:%d %s mb:%d %c%s%s frame:%d poc:%d/%d ref:%d/%d qp:%d loop:%d:%d:%d weight:%d%s %s\n",
2079
               sl->slice_num,
2080
               (h->picture_structure == PICT_FRAME ? "F" : h->picture_structure == PICT_TOP_FIELD ? "T" : "B"),
2081
               sl->mb_y * h->mb_width + sl->mb_x,
2082
               av_get_picture_type_char(sl->slice_type),
2083
               sl->slice_type_fixed ? " fix" : "",
2084
               nal->type == H264_NAL_IDR_SLICE ? " IDR" : "",
2085
               h->poc.frame_num,
2086
               h->cur_pic_ptr->field_poc[0],
2087
               h->cur_pic_ptr->field_poc[1],
2088
               sl->ref_count[0], sl->ref_count[1],
2089
               sl->qscale,
2090
               sl->deblocking_filter,
2091
               sl->slice_alpha_c0_offset, sl->slice_beta_offset,
2092
               sl->pwt.use_weight,
2093
               sl->pwt.use_weight == 1 && sl->pwt.use_weight_chroma ? "c" : "",
2094
               sl->slice_type == AV_PICTURE_TYPE_B ? (sl->direct_spatial_mv_pred ? "SPAT" : "TEMP") : "");
2095
    }
2096
2097
34216
    return 0;
2098
}
2099
2100
34685
int ff_h264_queue_decode_slice(H264Context *h, const H2645NAL *nal)
2101
{
2102
34685
    H264SliceContext *sl = h->slice_ctx + h->nb_slice_ctx_queued;
2103

34685
    int first_slice = sl == h->slice_ctx && !h->current_slice;
2104
    int ret;
2105
2106
34685
    sl->gb = nal->gb;
2107
2108
34685
    ret = h264_slice_header_parse(h, sl, nal);
2109
34685
    if (ret < 0)
2110
389
        return ret;
2111
2112
    // discard redundant pictures
2113
34296
    if (sl->redundant_pic_count > 0) {
2114
        sl->ref_count[0] = sl->ref_count[1] = 0;
2115
        return 0;
2116
    }
2117
2118

34296
    if (sl->first_mb_addr == 0 || !h->current_slice) {
2119
26191
        if (h->setup_finished) {
2120
            av_log(h->avctx, AV_LOG_ERROR, "Too many fields\n");
2121
            return AVERROR_INVALIDDATA;
2122
        }
2123
    }
2124
2125
34296
    if (sl->first_mb_addr == 0) { // FIXME better field boundary detection
2126
26191
        if (h->current_slice) {
2127
            // this slice starts a new field
2128
            // first decode any pending queued slices
2129
193
            if (h->nb_slice_ctx_queued) {
2130
                H264SliceContext tmp_ctx;
2131
2132
                ret = ff_h264_execute_decode_slices(h);
2133
                if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE))
2134
                    return ret;
2135
2136
                memcpy(&tmp_ctx, h->slice_ctx, sizeof(tmp_ctx));
2137
                memcpy(h->slice_ctx, sl, sizeof(tmp_ctx));
2138
                memcpy(sl, &tmp_ctx, sizeof(tmp_ctx));
2139
                sl = h->slice_ctx;
2140
            }
2141
2142

193
            if (h->cur_pic_ptr && FIELD_PICTURE(h) && h->first_field) {
2143
193
                ret = ff_h264_field_end(h, h->slice_ctx, 1);
2144
193
                if (ret < 0)
2145
                    return ret;
2146
            } else if (h->cur_pic_ptr && !FIELD_PICTURE(h) && !h->first_field && h->nal_unit_type  == H264_NAL_IDR_SLICE) {
2147
                av_log(h, AV_LOG_WARNING, "Broken frame packetizing\n");
2148
                ret = ff_h264_field_end(h, h->slice_ctx, 1);
2149
                ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, 0);
2150
                ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, 1);
2151
                h->cur_pic_ptr = NULL;
2152
                if (ret < 0)
2153
                    return ret;
2154
            } else
2155
                return AVERROR_INVALIDDATA;
2156
        }
2157
2158
26191
        if (!h->first_field) {
2159

22859
            if (h->cur_pic_ptr && !h->droppable) {
2160
299
                ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX,
2161
299
                                          h->picture_structure == PICT_BOTTOM_FIELD);
2162
            }
2163
22859
            h->cur_pic_ptr = NULL;
2164
        }
2165
    }
2166
2167
34296
    if (!h->current_slice)
2168
26191
        av_assert0(sl == h->slice_ctx);
2169
2170

34296
    if (h->current_slice == 0 && !h->first_field) {
2171
22859
        if (
2172

22859
            (h->avctx->skip_frame >= AVDISCARD_NONREF && !h->nal_ref_idc) ||
2173

22859
            (h->avctx->skip_frame >= AVDISCARD_BIDIR  && sl->slice_type_nos == AV_PICTURE_TYPE_B) ||
2174

22815
            (h->avctx->skip_frame >= AVDISCARD_NONINTRA && sl->slice_type_nos != AV_PICTURE_TYPE_I) ||
2175

22779
            (h->avctx->skip_frame >= AVDISCARD_NONKEY && h->nal_unit_type != H264_NAL_IDR_SLICE && h->sei.recovery_point.recovery_frame_cnt < 0) ||
2176
22779
            h->avctx->skip_frame >= AVDISCARD_ALL) {
2177
80
            return 0;
2178
        }
2179
    }
2180
2181
34216
    if (!first_slice) {
2182
8298
        const PPS *pps = (const PPS*)h->ps.pps_list[sl->pps_id]->data;
2183
2184
8298
        if (h->ps.pps->sps_id != pps->sps_id ||
2185
8298
            h->ps.pps->transform_8x8_mode != pps->transform_8x8_mode /*||
2186
            (h->setup_finished && h->ps.pps != pps)*/) {
2187
            av_log(h->avctx, AV_LOG_ERROR, "PPS changed between slices\n");
2188
            return AVERROR_INVALIDDATA;
2189
        }
2190
8298
        if (h->ps.sps != pps->sps) {
2191
            av_log(h->avctx, AV_LOG_ERROR,
2192
               "SPS changed in the middle of the frame\n");
2193
            return AVERROR_INVALIDDATA;
2194
        }
2195
    }
2196
2197
34216
    if (h->current_slice == 0) {
2198
26111
        ret = h264_field_start(h, sl, nal, first_slice);
2199
26111
        if (ret < 0)
2200
            return ret;
2201
    } else {
2202
8105
        if (h->picture_structure != sl->picture_structure ||
2203
8105
            h->droppable         != (nal->ref_idc == 0)) {
2204
            av_log(h->avctx, AV_LOG_ERROR,
2205
                   "Changing field mode (%d -> %d) between slices is not allowed\n",
2206
                   h->picture_structure, sl->picture_structure);
2207
            return AVERROR_INVALIDDATA;
2208
8105
        } else if (!h->cur_pic_ptr) {
2209
            av_log(h->avctx, AV_LOG_ERROR,
2210
                   "unset cur_pic_ptr on slice %d\n",
2211
                   h->current_slice + 1);
2212
            return AVERROR_INVALIDDATA;
2213
        }
2214
    }
2215
2216
34216
    ret = h264_slice_init(h, sl, nal);
2217
34216
    if (ret < 0)
2218
        return ret;
2219
2220
34216
    h->nb_slice_ctx_queued++;
2221
2222
34216
    return 0;
2223
}
2224
2225
int ff_h264_get_slice_type(const H264SliceContext *sl)
2226
{
2227
    switch (sl->slice_type) {
2228
    case AV_PICTURE_TYPE_P:
2229
        return 0;
2230
    case AV_PICTURE_TYPE_B:
2231
        return 1;
2232
    case AV_PICTURE_TYPE_I:
2233
        return 2;
2234
    case AV_PICTURE_TYPE_SP:
2235
        return 3;
2236
    case AV_PICTURE_TYPE_SI:
2237
        return 4;
2238
    default:
2239
        return AVERROR_INVALIDDATA;
2240
    }
2241
}
2242
2243
11509805
static av_always_inline void fill_filter_caches_inter(const H264Context *h,
2244
                                                      H264SliceContext *sl,
2245
                                                      int mb_type, int top_xy,
2246
                                                      int left_xy[LEFT_MBS],
2247
                                                      int top_type,
2248
                                                      int left_type[LEFT_MBS],
2249
                                                      int mb_xy, int list)
2250
{
2251
11509805
    int b_stride = h->b_stride;
2252
11509805
    int16_t(*mv_dst)[2] = &sl->mv_cache[list][scan8[0]];
2253
11509805
    int8_t *ref_cache   = &sl->ref_cache[list][scan8[0]];
2254

11509805
    if (IS_INTER(mb_type) || IS_DIRECT(mb_type)) {
2255
11509805
        if (USES_LIST(top_type, list)) {
2256
9256034
            const int b_xy  = h->mb2b_xy[top_xy] + 3 * b_stride;
2257
9256034
            const int b8_xy = 4 * top_xy + 2;
2258
9256034
            const int *ref2frm = &h->ref2frm[h->slice_table[top_xy] & (MAX_SLICES - 1)][list][(MB_MBAFF(sl) ? 20 : 2)];
2259
9256034
            AV_COPY128(mv_dst - 1 * 8, h->cur_pic.motion_val[list][b_xy + 0]);
2260
9256034
            ref_cache[0 - 1 * 8] =
2261
9256034
            ref_cache[1 - 1 * 8] = ref2frm[h->cur_pic.ref_index[list][b8_xy + 0]];
2262
9256034
            ref_cache[2 - 1 * 8] =
2263
9256034
            ref_cache[3 - 1 * 8] = ref2frm[h->cur_pic.ref_index[list][b8_xy + 1]];
2264
        } else {
2265
2253771
            AV_ZERO128(mv_dst - 1 * 8);
2266
2253771
            AV_WN32A(&ref_cache[0 - 1 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
2267
        }
2268
2269
11509805
        if (!IS_INTERLACED(mb_type ^ left_type[LTOP])) {
2270
11099142
            if (USES_LIST(left_type[LTOP], list)) {
2271
9284607
                const int b_xy  = h->mb2b_xy[left_xy[LTOP]] + 3;
2272
9284607
                const int b8_xy = 4 * left_xy[LTOP] + 1;
2273
9284607
                const int *ref2frm = &h->ref2frm[h->slice_table[left_xy[LTOP]] & (MAX_SLICES - 1)][list][(MB_MBAFF(sl) ? 20 : 2)];
2274
9284607
                AV_COPY32(mv_dst - 1 +  0, h->cur_pic.motion_val[list][b_xy + b_stride * 0]);
2275
9284607
                AV_COPY32(mv_dst - 1 +  8, h->cur_pic.motion_val[list][b_xy + b_stride * 1]);
2276
9284607
                AV_COPY32(mv_dst - 1 + 16, h->cur_pic.motion_val[list][b_xy + b_stride * 2]);
2277
9284607
                AV_COPY32(mv_dst - 1 + 24, h->cur_pic.motion_val[list][b_xy + b_stride * 3]);
2278
9284607
                ref_cache[-1 +  0] =
2279
9284607
                ref_cache[-1 +  8] = ref2frm[h->cur_pic.ref_index[list][b8_xy + 2 * 0]];
2280
9284607
                ref_cache[-1 + 16] =
2281
9284607
                ref_cache[-1 + 24] = ref2frm[h->cur_pic.ref_index[list][b8_xy + 2 * 1]];
2282
            } else {
2283
1814535
                AV_ZERO32(mv_dst - 1 +  0);
2284
1814535
                AV_ZERO32(mv_dst - 1 +  8);
2285
1814535
                AV_ZERO32(mv_dst - 1 + 16);
2286
1814535
                AV_ZERO32(mv_dst - 1 + 24);
2287
1814535
                ref_cache[-1 +  0] =
2288
1814535
                ref_cache[-1 +  8] =
2289
1814535
                ref_cache[-1 + 16] =
2290
1814535
                ref_cache[-1 + 24] = LIST_NOT_USED;
2291
            }
2292
        }
2293
    }
2294
2295
11509805
    if (!USES_LIST(mb_type, list)) {
2296
1262990
        fill_rectangle(mv_dst, 4, 4, 8, pack16to32(0, 0), 4);
2297
1262990
        AV_WN32A(&ref_cache[0 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
2298
1262990
        AV_WN32A(&ref_cache[1 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
2299
1262990
        AV_WN32A(&ref_cache[2 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
2300
1262990
        AV_WN32A(&ref_cache[3 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
2301
1262990
        return;
2302
    }
2303
2304
    {
2305
10246815
        int8_t *ref = &h->cur_pic.ref_index[list][4 * mb_xy];
2306
10246815
        const int *ref2frm = &h->ref2frm[sl->slice_num & (MAX_SLICES - 1)][list][(MB_MBAFF(sl) ? 20 : 2)];
2307
10246815
        uint32_t ref01 = (pack16to32(ref2frm[ref[0]], ref2frm[ref[1]]) & 0x00FF00FF) * 0x0101;
2308
10246815
        uint32_t ref23 = (pack16to32(ref2frm[ref[2]], ref2frm[ref[3]]) & 0x00FF00FF) * 0x0101;
2309
10246815
        AV_WN32A(&ref_cache[0 * 8], ref01);
2310
10246815
        AV_WN32A(&ref_cache[1 * 8], ref01);
2311
10246815
        AV_WN32A(&ref_cache[2 * 8], ref23);
2312
10246815
        AV_WN32A(&ref_cache[3 * 8], ref23);
2313
    }
2314
2315
    {
2316
10246815
        int16_t(*mv_src)[2] = &h->cur_pic.motion_val[list][4 * sl->mb_x + 4 * sl->mb_y * b_stride];
2317
10246815
        AV_COPY128(mv_dst + 8 * 0, mv_src + 0 * b_stride);
2318
10246815
        AV_COPY128(mv_dst + 8 * 1, mv_src + 1 * b_stride);
2319
10246815
        AV_COPY128(mv_dst + 8 * 2, mv_src + 2 * b_stride);
2320
10246815
        AV_COPY128(mv_dst + 8 * 3, mv_src + 3 * b_stride);
2321
    }
2322
}
2323
2324
/**
2325
 * @return non zero if the loop filter can be skipped
2326
 */
2327
11609103
static int fill_filter_caches(const H264Context *h, H264SliceContext *sl, int mb_type)
2328
{
2329
11609103
    const int mb_xy = sl->mb_xy;
2330
    int top_xy, left_xy[LEFT_MBS];
2331
    int top_type, left_type[LEFT_MBS];
2332
    uint8_t *nnz;
2333
    uint8_t *nnz_cache;
2334
2335
11609103
    top_xy = mb_xy - (h->mb_stride << MB_FIELD(sl));
2336
2337
11609103
    left_xy[LBOT] = left_xy[LTOP] = mb_xy - 1;
2338
11609103
    if (FRAME_MBAFF(h)) {
2339
1814136
        const int left_mb_field_flag = IS_INTERLACED(h->cur_pic.mb_type[mb_xy - 1]);
2340
1814136
        const int curr_mb_field_flag = IS_INTERLACED(mb_type);
2341
1814136
        if (sl->mb_y & 1) {
2342
907068
            if (left_mb_field_flag != curr_mb_field_flag)
2343
189266
                left_xy[LTOP] -= h->mb_stride;
2344
        } else {
2345
907068
            if (curr_mb_field_flag)
2346
241257
                top_xy += h->mb_stride &
2347
241257
                          (((h->cur_pic.mb_type[top_xy] >> 7) & 1) - 1);
2348
907068
            if (left_mb_field_flag != curr_mb_field_flag)
2349
189266
                left_xy[LBOT] += h->mb_stride;
2350
        }
2351
    }
2352
2353
11609103
    sl->top_mb_xy        = top_xy;
2354
11609103
    sl->left_mb_xy[LTOP] = left_xy[LTOP];
2355
11609103
    sl->left_mb_xy[LBOT] = left_xy[LBOT];
2356
    {
2357
        /* For sufficiently low qp, filtering wouldn't do anything.
2358
         * This is a conservative estimate: could also check beta_offset
2359
         * and more accurate chroma_qp. */
2360
11609103
        int qp_thresh = sl->qp_thresh; // FIXME strictly we should store qp_thresh for each mb of a slice
2361
11609103
        int qp        = h->cur_pic.qscale_table[mb_xy];
2362
11609103
        if (qp <= qp_thresh &&
2363
1458628
            (left_xy[LTOP] < 0 ||
2364

1458628
             ((qp + h->cur_pic.qscale_table[left_xy[LTOP]] + 1) >> 1) <= qp_thresh) &&
2365
1328998
            (top_xy < 0 ||
2366
1328998
             ((qp + h->cur_pic.qscale_table[top_xy] + 1) >> 1) <= qp_thresh)) {
2367
1213195
            if (!FRAME_MBAFF(h))
2368
990750
                return 1;
2369
222445
            if ((left_xy[LTOP] < 0 ||
2370
222351
                 ((qp + h->cur_pic.qscale_table[left_xy[LBOT]] + 1) >> 1) <= qp_thresh) &&
2371
222040
                (top_xy < h->mb_stride ||
2372
207469
                 ((qp + h->cur_pic.qscale_table[top_xy - h->mb_stride] + 1) >> 1) <= qp_thresh))
2373
205646
                return 1;
2374
        }
2375
    }
2376
2377
10412707
    top_type        = h->cur_pic.mb_type[top_xy];
2378
10412707
    left_type[LTOP] = h->cur_pic.mb_type[left_xy[LTOP]];
2379
10412707
    left_type[LBOT] = h->cur_pic.mb_type[left_xy[LBOT]];
2380
10412707
    if (sl->deblocking_filter == 2) {
2381
470376
        if (h->slice_table[top_xy] != sl->slice_num)
2382
56878
            top_type = 0;
2383
470376
        if (h->slice_table[left_xy[LBOT]] != sl->slice_num)
2384
13874
            left_type[LTOP] = left_type[LBOT] = 0;
2385
    } else {
2386
9942331
        if (h->slice_table[top_xy] == 0xFFFF)
2387
454528
            top_type = 0;
2388
9942331
        if (h->slice_table[left_xy[LBOT]] == 0xFFFF)
2389
295880
            left_type[LTOP] = left_type[LBOT] = 0;
2390
    }
2391
10412707
    sl->top_type        = top_type;
2392
10412707
    sl->left_type[LTOP] = left_type[LTOP];
2393
10412707
    sl->left_type[LBOT] = left_type[LBOT];
2394
2395
10412707
    if (IS_INTRA(mb_type))
2396
2890916
        return 0;
2397
2398
7521791
    fill_filter_caches_inter(h, sl, mb_type, top_xy, left_xy,
2399
                             top_type, left_type, mb_xy, 0);
2400
7521791
    if (sl->list_count == 2)
2401
3988014
        fill_filter_caches_inter(h, sl, mb_type, top_xy, left_xy,
2402
                                 top_type, left_type, mb_xy, 1);
2403
2404
7521791
    nnz       = h->non_zero_count[mb_xy];
2405
7521791
    nnz_cache = sl->non_zero_count_cache;
2406
7521791
    AV_COPY32(&nnz_cache[4 + 8 * 1], &nnz[0]);
2407
7521791
    AV_COPY32(&nnz_cache[4 + 8 * 2], &nnz[4]);
2408
7521791
    AV_COPY32(&nnz_cache[4 + 8 * 3], &nnz[8]);
2409
7521791
    AV_COPY32(&nnz_cache[4 + 8 * 4], &nnz[12]);
2410
7521791
    sl->cbp = h->cbp_table[mb_xy];
2411
2412
7521791
    if (top_type) {
2413
7112311
        nnz = h->non_zero_count[top_xy];
2414
7112311
        AV_COPY32(&nnz_cache[4 + 8 * 0], &nnz[3 * 4]);
2415
    }
2416
2417
7521791
    if (left_type[LTOP]) {
2418
7267756
        nnz = h->non_zero_count[left_xy[LTOP]];
2419
7267756
        nnz_cache[3 + 8 * 1] = nnz[3 + 0 * 4];
2420
7267756
        nnz_cache[3 + 8 * 2] = nnz[3 + 1 * 4];
2421
7267756
        nnz_cache[3 + 8 * 3] = nnz[3 + 2 * 4];
2422
7267756
        nnz_cache[3 + 8 * 4] = nnz[3 + 3 * 4];
2423
    }
2424
2425
    /* CAVLC 8x8dct requires NNZ values for residual decoding that differ
2426
     * from what the loop filter needs */
2427

7521791
    if (!CABAC(h) && h->ps.pps->transform_8x8_mode) {
2428
246512
        if (IS_8x8DCT(top_type)) {
2429
107880
            nnz_cache[4 + 8 * 0] =
2430
107880
            nnz_cache[5 + 8 * 0] = (h->cbp_table[top_xy] & 0x4000) >> 12;
2431
107880
            nnz_cache[6 + 8 * 0] =
2432
107880
            nnz_cache[7 + 8 * 0] = (h->cbp_table[top_xy] & 0x8000) >> 12;
2433
        }
2434
246512
        if (IS_8x8DCT(left_type[LTOP])) {
2435
110456
            nnz_cache[3 + 8 * 1] =
2436
110456
            nnz_cache[3 + 8 * 2] = (h->cbp_table[left_xy[LTOP]] & 0x2000) >> 12; // FIXME check MBAFF
2437
        }
2438
246512
        if (IS_8x8DCT(left_type[LBOT])) {
2439
110556
            nnz_cache[3 + 8 * 3] =
2440
110556
            nnz_cache[3 + 8 * 4] = (h->cbp_table[left_xy[LBOT]] & 0x8000) >> 12; // FIXME check MBAFF
2441
        }
2442
2443
246512
        if (IS_8x8DCT(mb_type)) {
2444
104923
            nnz_cache[scan8[0]] =
2445
104923
            nnz_cache[scan8[1]] =
2446
104923
            nnz_cache[scan8[2]] =
2447
104923
            nnz_cache[scan8[3]] = (sl->cbp & 0x1000) >> 12;
2448
2449
104923
            nnz_cache[scan8[0 + 4]] =
2450
104923
            nnz_cache[scan8[1 + 4]] =
2451
104923
            nnz_cache[scan8[2 + 4]] =
2452
104923
            nnz_cache[scan8[3 + 4]] = (sl->cbp & 0x2000) >> 12;
2453
2454
104923
            nnz_cache[scan8[0 + 8]] =
2455
104923
            nnz_cache[scan8[1 + 8]] =
2456
104923
            nnz_cache[scan8[2 + 8]] =
2457
104923
            nnz_cache[scan8[3 + 8]] = (sl->cbp & 0x4000) >> 12;
2458
2459
104923
            nnz_cache[scan8[0 + 12]] =
2460
104923
            nnz_cache[scan8[1 + 12]] =
2461
104923
            nnz_cache[scan8[2 + 12]] =
2462
104923
            nnz_cache[scan8[3 + 12]] = (sl->cbp & 0x8000) >> 12;
2463
        }
2464
    }
2465
2466
7521791
    return 0;
2467
}
2468
2469
365832
static void loop_filter(const H264Context *h, H264SliceContext *sl, int start_x, int end_x)
2470
{
2471
    uint8_t *dest_y, *dest_cb, *dest_cr;
2472
    int linesize, uvlinesize, mb_x, mb_y;
2473
365832
    const int end_mb_y       = sl->mb_y + FRAME_MBAFF(h);
2474
365832
    const int old_slice_type = sl->slice_type;
2475
365832
    const int pixel_shift    = h->pixel_shift;
2476
365832
    const int block_h        = 16 >> h->chroma_y_shift;
2477
2478
365832
    if (h->postpone_filter)
2479
        return;
2480
2481
365832
    if (sl->deblocking_filter) {
2482
10998705
        for (mb_x = start_x; mb_x < end_x; mb_x++)
2483
22311138
            for (mb_y = end_mb_y - FRAME_MBAFF(h); mb_y <= end_mb_y; mb_y++) {
2484
                int mb_xy, mb_type;
2485
11609103
                mb_xy         = sl->mb_xy = mb_x + mb_y * h->mb_stride;
2486
11609103
                mb_type       = h->cur_pic.mb_type[mb_xy];
2487
2488
11609103
                if (FRAME_MBAFF(h))
2489
1814136
                    sl->mb_mbaff               =
2490
1814136
                    sl->mb_field_decoding_flag = !!IS_INTERLACED(mb_type);
2491
2492
11609103
                sl->mb_x = mb_x;
2493
11609103
                sl->mb_y = mb_y;
2494
11609103
                dest_y  = h->cur_pic.f->data[0] +
2495
11609103
                          ((mb_x << pixel_shift) + mb_y * sl->linesize) * 16;
2496
23218206
                dest_cb = h->cur_pic.f->data[1] +
2497
11609103
                          (mb_x << pixel_shift) * (8 << CHROMA444(h)) +
2498
11609103
                          mb_y * sl->uvlinesize * block_h;
2499
23218206
                dest_cr = h->cur_pic.f->data[2] +
2500
11609103
                          (mb_x << pixel_shift) * (8 << CHROMA444(h)) +
2501
11609103
                          mb_y * sl->uvlinesize * block_h;
2502
                // FIXME simplify above
2503
2504
11609103
                if (MB_FIELD(sl)) {
2505
4418472
                    linesize   = sl->mb_linesize   = sl->linesize   * 2;
2506
4418472
                    uvlinesize = sl->mb_uvlinesize = sl->uvlinesize * 2;
2507
4418472
                    if (mb_y & 1) { // FIXME move out of this function?
2508
2206497
                        dest_y  -= sl->linesize   * 15;
2509
2206497
                        dest_cb -= sl->uvlinesize * (block_h - 1);
2510
2206497
                        dest_cr -= sl->uvlinesize * (block_h - 1);
2511
                    }
2512
                } else {
2513
7190631
                    linesize   = sl->mb_linesize   = sl->linesize;
2514
7190631
                    uvlinesize = sl->mb_uvlinesize = sl->uvlinesize;
2515
                }
2516
11609103
                backup_mb_border(h, sl, dest_y, dest_cb, dest_cr, linesize,
2517
                                 uvlinesize, 0);
2518
11609103
                if (fill_filter_caches(h, sl, mb_type))
2519
1196396
                    continue;
2520
10412707
                sl->chroma_qp[0] = get_chroma_qp(h->ps.pps, 0, h->cur_pic.qscale_table[mb_xy]);
2521
10412707
                sl->chroma_qp[1] = get_chroma_qp(h->ps.pps, 1, h->cur_pic.qscale_table[mb_xy]);
2522
2523
10412707
                if (FRAME_MBAFF(h)) {
2524
1608490
                    ff_h264_filter_mb(h, sl, mb_x, mb_y, dest_y, dest_cb, dest_cr,
2525
                                      linesize, uvlinesize);
2526
                } else {
2527
8804217
                    ff_h264_filter_mb_fast(h, sl, mb_x, mb_y, dest_y, dest_cb,
2528
                                           dest_cr, linesize, uvlinesize);
2529
                }
2530
            }
2531
    }
2532
365832
    sl->slice_type  = old_slice_type;
2533
365832
    sl->mb_x         = end_x;
2534
365832
    sl->mb_y         = end_mb_y - FRAME_MBAFF(h);
2535
365832
    sl->chroma_qp[0] = get_chroma_qp(h->ps.pps, 0, sl->qscale);
2536
365832
    sl->chroma_qp[1] = get_chroma_qp(h->ps.pps, 1, sl->qscale);
2537
}
2538
2539
22884
static void predict_field_decoding_flag(const H264Context *h, H264SliceContext *sl)
2540
{
2541
22884
    const int mb_xy = sl->mb_x + sl->mb_y * h->mb_stride;
2542
45768
    int mb_type     = (h->slice_table[mb_xy - 1] == sl->slice_num) ?
2543
45768
                      h->cur_pic.mb_type[mb_xy - 1] :
2544
22884
                      (h->slice_table[mb_xy - h->mb_stride] == sl->slice_num) ?
2545
22748
                      h->cur_pic.mb_type[mb_xy - h->mb_stride] : 0;
2546
22884
    sl->mb_mbaff    = sl->mb_field_decoding_flag = IS_INTERLACED(mb_type) ? 1 : 0;
2547
22884
}
2548
2549
/**
2550
 * Draw edges and report progress for the last MB row.
2551
 */
2552
361737
static void decode_finish_row(const H264Context *h, H264SliceContext *sl)
2553
{
2554
361737
    int top            = 16 * (sl->mb_y      >> FIELD_PICTURE(h));
2555
361737
    int pic_height     = 16 *  h->mb_height >> FIELD_PICTURE(h);
2556
361737
    int height         =  16      << FRAME_MBAFF(h);
2557
361737
    int deblock_border = (16 + 4) << FRAME_MBAFF(h);
2558
2559
361737
    if (sl->deblocking_filter) {
2560
293587
        if ((top + height) >= pic_height)
2561
20530
            height += deblock_border;
2562
293587
        top -= deblock_border;
2563
    }
2564
2565

361737
    if (top >= pic_height || (top + height) < 0)
2566
20531
        return;
2567
2568
341206
    height = FFMIN(height, pic_height - top);
2569
341206
    if (top < 0) {
2570
20531
        height = top + height;
2571
20531
        top    = 0;
2572
    }
2573
2574
341206
    ff_h264_draw_horiz_band(h, sl, top, height);
2575
2576

341206
    if (h->droppable || sl->h264->slice_ctx[0].er.error_occurred)
2577
122771
        return;
2578
2579
218435
    ff_thread_report_progress(&h->cur_pic_ptr->tf, top + height - 1,
2580
218435
                              h->picture_structure == PICT_BOTTOM_FIELD);
2581
}
2582
2583
34216
static void er_add_slice(H264SliceContext *sl,
2584
                         int startx, int starty,
2585
                         int endx, int endy, int status)
2586
{
2587
34216
    if (!sl->h264->enable_er)
2588
1200
        return;
2589
2590
    if (CONFIG_ERROR_RESILIENCE) {
2591
33016
        ERContext *er = &sl->h264->slice_ctx[0].er;
2592
2593
33016
        ff_er_add_slice(er, startx, starty, endx, endy, status);
2594
    }
2595
}
2596
2597
34216
static int decode_slice(struct AVCodecContext *avctx, void *arg)
2598
{
2599
34216
    H264SliceContext *sl = arg;
2600
34216
    const H264Context *h = sl->h264;
2601
34216
    int lf_x_start = sl->mb_x;
2602
34216
    int orig_deblock = sl->deblocking_filter;
2603
    int ret;
2604
2605
34216
    sl->linesize   = h->cur_pic_ptr->f->linesize[0];
2606
34216
    sl->uvlinesize = h->cur_pic_ptr->f->linesize[1];
2607
2608
34216
    ret = alloc_scratch_buffers(sl, sl->linesize);
2609
34216
    if (ret < 0)
2610
        return ret;
2611
2612
34216
    sl->mb_skip_run = -1;
2613
2614
34216
    av_assert0(h->block_offset[15] == (4 * ((scan8[15] - scan8[0]) & 7) << h->pixel_shift) + 4 * sl->linesize * ((scan8[15] - scan8[0]) >> 3));
2615
2616
34216
    if (h->postpone_filter)
2617
        sl->deblocking_filter = 0;
2618
2619

34216
    sl->is_complex = FRAME_MBAFF(h) || h->picture_structure != PICT_FRAME ||
2620
                     (CONFIG_GRAY && (h->flags & AV_CODEC_FLAG_GRAY));
2621
2622

34216
    if (!(h->avctx->active_thread_type & FF_THREAD_SLICE) && h->picture_structure == PICT_FRAME && h->slice_ctx[0].er.error_status_table) {
2623
24420
        const int start_i  = av_clip(sl->resync_mb_x + sl->resync_mb_y * h->mb_width, 0, h->mb_num - 1);
2624
24420
        if (start_i) {
2625
5278
            int prev_status = h->slice_ctx[0].er.error_status_table[h->slice_ctx[0].er.mb_index2xy[start_i - 1]];
2626
5278
            prev_status &= ~ VP_START;
2627
5278
            if (prev_status != (ER_MV_END | ER_DC_END | ER_AC_END))
2628
                h->slice_ctx[0].er.error_occurred = 1;
2629
        }
2630
    }
2631
2632
34216
    if (h->ps.pps->cabac) {
2633
        /* realign */
2634
18293
        align_get_bits(&sl->gb);
2635
2636
        /* init cabac */
2637
36586
        ret = ff_init_cabac_decoder(&sl->cabac,
2638
18293
                              sl->gb.buffer + get_bits_count(&sl->gb) / 8,
2639
18293
                              (get_bits_left(&sl->gb) + 7) / 8);
2640
18293
        if (ret < 0)
2641
            return ret;
2642
2643
18293
        ff_h264_init_cabac_states(h, sl);
2644
2645
8532186
        for (;;) {
2646
            int ret, eos;
2647
8550479
            if (sl->mb_x + sl->mb_y * h->mb_width >= sl->next_slice_idx) {
2648
                av_log(h->avctx, AV_LOG_ERROR, "Slice overlaps with next at %d\n",
2649
                       sl->next_slice_idx);
2650
                er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x,
2651
                             sl->mb_y, ER_MB_ERROR);
2652
                return AVERROR_INVALIDDATA;
2653
            }
2654
2655
8550479
            ret = ff_h264_decode_mb_cabac(h, sl);
2656
2657
8550479
            if (ret >= 0)
2658
8550478
                ff_h264_hl_decode_mb(h, sl);
2659
2660
            // FIXME optimal? or let mb_decode decode 16x32 ?
2661

8550479
            if (ret >= 0 && FRAME_MBAFF(h)) {
2662
798720
                sl->mb_y++;
2663
2664
798720
                ret = ff_h264_decode_mb_cabac(h, sl);
2665
2666
798720
                if (ret >= 0)
2667
798720
                    ff_h264_hl_decode_mb(h, sl);
2668
798720
                sl->mb_y--;
2669
            }
2670
8550479
            eos = get_cabac_terminate(&sl->cabac);
2671
2672
8550479
            if ((h->workaround_bugs & FF_BUG_TRUNCATED) &&
2673
                sl->cabac.bytestream > sl->cabac.bytestream_end + 2) {
2674
                er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x - 1,
2675
                             sl->mb_y, ER_MB_END);
2676
                if (sl->mb_x >= lf_x_start)
2677
                    loop_filter(h, sl, lf_x_start, sl->mb_x + 1);
2678
                goto finish;
2679
            }
2680
8550479
            if (sl->cabac.bytestream > sl->cabac.bytestream_end + 2 )
2681
1
                av_log(h->avctx, AV_LOG_DEBUG, "bytestream overread %"PTRDIFF_SPECIFIER"\n", sl->cabac.bytestream_end - sl->cabac.bytestream);
2682

8550479
            if (ret < 0 || sl->cabac.bytestream > sl->cabac.bytestream_end + 4) {
2683
2
                av_log(h->avctx, AV_LOG_ERROR,
2684
                       "error while decoding MB %d %d, bytestream %"PTRDIFF_SPECIFIER"\n",
2685
                       sl->mb_x, sl->mb_y,
2686
2
                       sl->cabac.bytestream_end - sl->cabac.bytestream);
2687
2
                er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x,
2688
                             sl->mb_y, ER_MB_ERROR);
2689
2
                return AVERROR_INVALIDDATA;
2690
            }
2691
2692
8550477
            if (++sl->mb_x >= h->mb_width) {
2693
209108
                loop_filter(h, sl, lf_x_start, sl->mb_x);
2694
209108
                sl->mb_x = lf_x_start = 0;
2695
209108
                decode_finish_row(h, sl);
2696
209108
                ++sl->mb_y;
2697

209108
                if (FIELD_OR_MBAFF_PICTURE(h)) {
2698
76828
                    ++sl->mb_y;
2699

76828
                    if (FRAME_MBAFF(h) && sl->mb_y < h->mb_height)
2700
17906
                        predict_field_decoding_flag(h, sl);
2701
                }
2702
            }
2703
2704

8550477
            if (eos || sl->mb_y >= h->mb_height) {
2705
                ff_tlog(h->avctx, "slice end %d %d\n",
2706
                        get_bits_count(&sl->gb), sl->gb.size_in_bits);
2707
18291
                er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x - 1,
2708
                             sl->mb_y, ER_MB_END);
2709
18291
                if (sl->mb_x > lf_x_start)
2710
1382
                    loop_filter(h, sl, lf_x_start, sl->mb_x);
2711
18291
                goto finish;
2712
            }
2713
        }
2714
    } else {
2715
4076548
        for (;;) {
2716
            int ret;
2717
2718
4092471
            if (sl->mb_x + sl->mb_y * h->mb_width >= sl->next_slice_idx) {
2719
                av_log(h->avctx, AV_LOG_ERROR, "Slice overlaps with next at %d\n",
2720
                       sl->next_slice_idx);
2721
                er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x,
2722
                             sl->mb_y, ER_MB_ERROR);
2723
                return AVERROR_INVALIDDATA;
2724
            }
2725
2726
4092471
            ret = ff_h264_decode_mb_cavlc(h, sl);
2727
2728
4092471
            if (ret >= 0)
2729
4092471
                ff_h264_hl_decode_mb(h, sl);
2730
2731
            // FIXME optimal? or let mb_decode decode 16x32 ?
2732

4092471
            if (ret >= 0 && FRAME_MBAFF(h)) {
2733
254472
                sl->mb_y++;
2734
254472
                ret = ff_h264_decode_mb_cavlc(h, sl);
2735
2736
254472
                if (ret >= 0)
2737
254472
                    ff_h264_hl_decode_mb(h, sl);
2738
254472
                sl->mb_y--;
2739
            }
2740
2741
4092471
            if (ret < 0) {
2742
                av_log(h->avctx, AV_LOG_ERROR,
2743
                       "error while decoding MB %d %d\n", sl->mb_x, sl->mb_y);
2744
                er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x,
2745
                             sl->mb_y, ER_MB_ERROR);
2746
                return ret;
2747
            }
2748
2749
4092471
            if (++sl->mb_x >= h->mb_width) {
2750
152629
                loop_filter(h, sl, lf_x_start, sl->mb_x);
2751
152629
                sl->mb_x = lf_x_start = 0;
2752
152629
                decode_finish_row(h, sl);
2753
152629
                ++sl->mb_y;
2754

152629
                if (FIELD_OR_MBAFF_PICTURE(h)) {
2755
32143
                    ++sl->mb_y;
2756

32143
                    if (FRAME_MBAFF(h) && sl->mb_y < h->mb_height)
2757
4978
                        predict_field_decoding_flag(h, sl);
2758
                }
2759
152629
                if (sl->mb_y >= h->mb_height) {
2760
                    ff_tlog(h->avctx, "slice end %d %d\n",
2761
                            get_bits_count(&sl->gb), sl->gb.size_in_bits);
2762
2763
12346
                    if (   get_bits_left(&sl->gb) == 0
2764
                        || get_bits_left(&sl->gb) > 0 && !(h->avctx->err_recognition & AV_EF_AGGRESSIVE)) {
2765
12346
                        er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y,
2766
12346
                                     sl->mb_x - 1, sl->mb_y, ER_MB_END);
2767
2768
12346
                        goto finish;
2769
                    } else {
2770
                        er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y,
2771
                                     sl->mb_x, sl->mb_y, ER_MB_END);
2772
2773
                        return AVERROR_INVALIDDATA;
2774
                    }
2775
                }
2776
            }
2777
2778

4080125
            if (get_bits_left(&sl->gb) <= 0 && sl->mb_skip_run <= 0) {
2779
                ff_tlog(h->avctx, "slice end %d %d\n",
2780
                        get_bits_count(&sl->gb), sl->gb.size_in_bits);
2781
2782
3577
                if (get_bits_left(&sl->gb) == 0) {
2783
3577
                    er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y,
2784
3577
                                 sl->mb_x - 1, sl->mb_y, ER_MB_END);
2785
3577
                    if (sl->mb_x > lf_x_start)
2786
2713
                        loop_filter(h, sl, lf_x_start, sl->mb_x);
2787
2788
3577
                    goto finish;
2789
                } else {
2790
                    er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x,
2791
                                 sl->mb_y, ER_MB_ERROR);
2792
2793
                    return AVERROR_INVALIDDATA;
2794
                }
2795
            }
2796
        }
2797
    }
2798
2799
34214
finish:
2800
34214
    sl->deblocking_filter = orig_deblock;
2801
34214
    return 0;
2802
}
2803
2804
/**
2805
 * Call decode_slice() for each context.
2806
 *
2807
 * @param h h264 master context
2808
 */
2809
60505
int ff_h264_execute_decode_slices(H264Context *h)
2810
{
2811
60505
    AVCodecContext *const avctx = h->avctx;
2812
    H264SliceContext *sl;
2813
60505
    int context_count = h->nb_slice_ctx_queued;
2814
60505
    int ret = 0;
2815
    int i, j;
2816
2817
60505
    h->slice_ctx[0].next_slice_idx = INT_MAX;
2818
2819

60505
    if (h->avctx->hwaccel || context_count < 1)
2820
26739
        return 0;
2821
2822

33766
    av_assert0(context_count && h->slice_ctx[context_count - 1].mb_y < h->mb_height);
2823
2824
33766
    if (context_count == 1) {
2825
2826
33316
        h->slice_ctx[0].next_slice_idx = h->mb_width * h->mb_height;
2827
33316
        h->postpone_filter = 0;
2828
2829
33316
        ret = decode_slice(avctx, &h->slice_ctx[0]);
2830
33316
        h->mb_y = h->slice_ctx[0].mb_y;
2831
33316
        if (ret < 0)
2832
2
            goto finish;
2833
    } else {
2834
450
        av_assert0(context_count > 0);
2835
1350
        for (i = 0; i < context_count; i++) {
2836
900
            int next_slice_idx = h->mb_width * h->mb_height;
2837
            int slice_idx;
2838
2839
900
            sl                 = &h->slice_ctx[i];
2840
            if (CONFIG_ERROR_RESILIENCE) {
2841
900
                sl->er.error_count = 0;
2842
            }
2843
2844
            /* make sure none of those slices overlap */
2845
900
            slice_idx = sl->mb_y * h->mb_width + sl->mb_x;
2846
2700
            for (j = 0; j < context_count; j++) {
2847
1800
                H264SliceContext *sl2 = &h->slice_ctx[j];
2848
1800
                int        slice_idx2 = sl2->mb_y * h->mb_width + sl2->mb_x;
2849
2850

1800
                if (i == j || slice_idx2 < slice_idx)
2851
1350
                    continue;
2852
450
                next_slice_idx = FFMIN(next_slice_idx, slice_idx2);
2853
            }
2854
900
            sl->next_slice_idx = next_slice_idx;
2855
        }
2856
2857
450
        avctx->execute(avctx, decode_slice, h->slice_ctx,
2858
                       NULL, context_count, sizeof(h->slice_ctx[0]));
2859
2860
        /* pull back stuff from slices to master context */
2861
450
        sl                   = &h->slice_ctx[context_count - 1];
2862
450
        h->mb_y              = sl->mb_y;
2863
        if (CONFIG_ERROR_RESILIENCE) {
2864
900
            for (i = 1; i < context_count; i++)
2865
450
                h->slice_ctx[0].er.error_count += h->slice_ctx[i].er.error_count;
2866
        }
2867
2868
450
        if (h->postpone_filter) {
2869
            h->postpone_filter = 0;
2870
2871
            for (i = 0; i < context_count; i++) {
2872
                int y_end, x_end;
2873
2874
                sl = &h->slice_ctx[i];
2875
                y_end = FFMIN(sl->mb_y + 1, h->mb_height);
2876
                x_end = (sl->mb_y >= h->mb_height) ? h->mb_width : sl->mb_x;
2877
2878
                for (j = sl->resync_mb_y; j < y_end; j += 1 + FIELD_OR_MBAFF_PICTURE(h)) {
2879
                    sl->mb_y = j;
2880
                    loop_filter(h, sl, j > sl->resync_mb_y ? 0 : sl->resync_mb_x,
2881
                                j == y_end - 1 ? x_end : h->mb_width);
2882
                }
2883
            }
2884
        }
2885
    }
2886
2887
450
finish:
2888
33766
    h->nb_slice_ctx_queued = 0;
2889
33766
    return ret;
2890
}