GCC Code Coverage Report
Directory: ../../../ffmpeg/ Exec Total Coverage
File: src/libavcodec/h264_slice.c Lines: 1373 1719 79.9 %
Date: 2020-09-25 23:16:12 Branches: 914 1293 70.7 %

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
26579
static void release_unused_pictures(H264Context *h, int remove_current)
116
{
117
    int i;
118
119
    /* release non reference frames */
120
983423
    for (i = 0; i < H264_MAX_PICTURE_COUNT; i++) {
121

956844
        if (h->DPB[i].f->buf[0] && !h->DPB[i].reference &&
122
2490
            (remove_current || &h->DPB[i] != h->cur_pic_ptr)) {
123
21344
            ff_h264_unref_picture(h, &h->DPB[i]);
124
        }
125
    }
126
26579
}
127
128
34012
static int alloc_scratch_buffers(H264SliceContext *sl, int linesize)
129
{
130
34012
    const H264Context *h = sl->h264;
131
34012
    int alloc_size = FFALIGN(FFABS(linesize) + 32, 32);
132
133
34012
    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
34012
    av_fast_malloc(&sl->edge_emu_buffer, &sl->edge_emu_buffer_allocated, alloc_size * 2 * 21);
137
138
34012
    av_fast_mallocz(&sl->top_borders[0], &sl->top_borders_allocated[0],
139
34012
                   h->mb_width * 16 * 3 * sizeof(uint8_t) * 2);
140
34012
    av_fast_mallocz(&sl->top_borders[1], &sl->top_borders_allocated[1],
141
34012
                   h->mb_width * 16 * 3 * sizeof(uint8_t) * 2);
142
143

34012
    if (!sl->bipred_scratchpad || !sl->edge_emu_buffer ||
144

34012
        !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
34012
    return 0;
158
}
159
160
534
static int init_table_pools(H264Context *h)
161
{
162
534
    const int big_mb_num    = h->mb_stride * (h->mb_height + 1) + 1;
163
534
    const int mb_array_size = h->mb_stride * h->mb_height;
164
534
    const int b4_stride     = h->mb_width * 4 + 1;
165
534
    const int b4_array_size = b4_stride * h->mb_height * 4;
166
167
534
    h->qscale_table_pool = av_buffer_pool_init(big_mb_num + h->mb_stride,
168
                                               av_buffer_allocz);
169
534
    h->mb_type_pool      = av_buffer_pool_init((big_mb_num + h->mb_stride) *
170
                                               sizeof(uint32_t), av_buffer_allocz);
171
534
    h->motion_val_pool   = av_buffer_pool_init(2 * (b4_array_size + 4) *
172
                                               sizeof(int16_t), av_buffer_allocz);
173
534
    h->ref_index_pool    = av_buffer_pool_init(4 * mb_array_size, av_buffer_allocz);
174
175

534
    if (!h->qscale_table_pool || !h->mb_type_pool || !h->motion_val_pool ||
176
534
        !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
534
    return 0;
185
}
186
187
23346
static int alloc_picture(H264Context *h, H264Picture *pic)
188
{
189
23346
    int i, ret = 0;
190
191
23346
    av_assert0(!pic->f->data[0]);
192
193
23346
    pic->tf.f = pic->f;
194
23346
    ret = ff_thread_get_buffer(h->avctx, &pic->tf, pic->reference ?
195
                                                   AV_GET_BUFFER_FLAG_REF : 0);
196
23346
    if (ret < 0)
197
        goto fail;
198
199
23346
    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
23346
    if (!h->qscale_table_pool) {
223
534
        ret = init_table_pools(h);
224
534
        if (ret < 0)
225
            goto fail;
226
    }
227
228
23346
    pic->qscale_table_buf = av_buffer_pool_get(h->qscale_table_pool);
229
23346
    pic->mb_type_buf      = av_buffer_pool_get(h->mb_type_pool);
230

23346
    if (!pic->qscale_table_buf || !pic->mb_type_buf)
231
        goto fail;
232
233
23346
    pic->mb_type      = (uint32_t*)pic->mb_type_buf->data + 2 * h->mb_stride + 1;
234
23346
    pic->qscale_table = pic->qscale_table_buf->data + 2 * h->mb_stride + 1;
235
236
70038
    for (i = 0; i < 2; i++) {
237
46692
        pic->motion_val_buf[i] = av_buffer_pool_get(h->motion_val_pool);
238
46692
        pic->ref_index_buf[i]  = av_buffer_pool_get(h->ref_index_pool);
239

46692
        if (!pic->motion_val_buf[i] || !pic->ref_index_buf[i])
240
            goto fail;
241
242
46692
        pic->motion_val[i] = (int16_t (*)[2])pic->motion_val_buf[i]->data + 4;
243
46692
        pic->ref_index[i]  = pic->ref_index_buf[i]->data;
244
    }
245
246
23346
    pic->pps_buf = av_buffer_ref(h->ps.pps_ref);
247
23346
    if (!pic->pps_buf)
248
        goto fail;
249
23346
    pic->pps = (const PPS*)pic->pps_buf->data;
250
251
23346
    pic->mb_width  = h->mb_width;
252
23346
    pic->mb_height = h->mb_height;
253
23346
    pic->mb_stride = h->mb_stride;
254
255
23346
    return 0;
256
fail:
257
    ff_h264_unref_picture(h, pic);
258
    return (ret < 0) ? ret : AVERROR(ENOMEM);
259
}
260
261
23346
static int find_unused_picture(H264Context *h)
262
{
263
    int i;
264
265
82041
    for (i = 0; i < H264_MAX_PICTURE_COUNT; i++) {
266
82041
        if (!h->DPB[i].f->buf[0])
267
23346
            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
    // We can't fail if SPS isn't set at it breaks current skip_frame code
308
    //if (!h1->ps.sps)
309
    //    return AVERROR_INVALIDDATA;
310
311
43
    if (inited &&
312
35
        (h->width                 != h1->width                 ||
313
35
         h->height                != h1->height                ||
314
35
         h->mb_width              != h1->mb_width              ||
315
35
         h->mb_height             != h1->mb_height             ||
316
35
         !h->ps.sps                                            ||
317
35
         h->ps.sps->bit_depth_luma    != h1->ps.sps->bit_depth_luma    ||
318
35
         h->ps.sps->chroma_format_idc != h1->ps.sps->chroma_format_idc ||
319
35
         h->ps.sps->colorspace        != h1->ps.sps->colorspace)) {
320
        need_reinit = 1;
321
    }
322
323
    /* copy block_offset since frame_start may not be called */
324
43
    memcpy(h->block_offset, h1->block_offset, sizeof(h->block_offset));
325
326
    // SPS/PPS
327
1419
    for (i = 0; i < FF_ARRAY_ELEMS(h->ps.sps_list); i++) {
328
1376
        av_buffer_unref(&h->ps.sps_list[i]);
329
1376
        if (h1->ps.sps_list[i]) {
330
43
            h->ps.sps_list[i] = av_buffer_ref(h1->ps.sps_list[i]);
331
43
            if (!h->ps.sps_list[i])
332
                return AVERROR(ENOMEM);
333
        }
334
    }
335
11051
    for (i = 0; i < FF_ARRAY_ELEMS(h->ps.pps_list); i++) {
336
11008
        av_buffer_unref(&h->ps.pps_list[i]);
337
11008
        if (h1->ps.pps_list[i]) {
338
43
            h->ps.pps_list[i] = av_buffer_ref(h1->ps.pps_list[i]);
339
43
            if (!h->ps.pps_list[i])
340
                return AVERROR(ENOMEM);
341
        }
342
    }
343
344
43
    av_buffer_unref(&h->ps.pps_ref);
345
43
    h->ps.pps = NULL;
346
43
    h->ps.sps = NULL;
347
43
    if (h1->ps.pps_ref) {
348
43
        h->ps.pps_ref = av_buffer_ref(h1->ps.pps_ref);
349
43
        if (!h->ps.pps_ref)
350
            return AVERROR(ENOMEM);
351
43
        h->ps.pps = (const PPS*)h->ps.pps_ref->data;
352
43
        h->ps.sps = h->ps.pps->sps;
353
    }
354
355

43
    if (need_reinit || !inited) {
356
8
        h->width     = h1->width;
357
8
        h->height    = h1->height;
358
8
        h->mb_height = h1->mb_height;
359
8
        h->mb_width  = h1->mb_width;
360
8
        h->mb_num    = h1->mb_num;
361
8
        h->mb_stride = h1->mb_stride;
362
8
        h->b_stride  = h1->b_stride;
363
8
        h->x264_build = h1->x264_build;
364
365

8
        if (h->context_initialized || h1->context_initialized) {
366
8
            if ((err = h264_slice_header_init(h)) < 0) {
367
                av_log(h->avctx, AV_LOG_ERROR, "h264_slice_header_init() failed");
368
                return err;
369
            }
370
        }
371
372
        /* copy block_offset since frame_start may not be called */
373
8
        memcpy(h->block_offset, h1->block_offset, sizeof(h->block_offset));
374
    }
375
376
43
    h->avctx->coded_height  = h1->avctx->coded_height;
377
43
    h->avctx->coded_width   = h1->avctx->coded_width;
378
43
    h->avctx->width         = h1->avctx->width;
379
43
    h->avctx->height        = h1->avctx->height;
380
43
    h->width_from_caller    = h1->width_from_caller;
381
43
    h->height_from_caller   = h1->height_from_caller;
382
43
    h->coded_picture_number = h1->coded_picture_number;
383
43
    h->first_field          = h1->first_field;
384
43
    h->picture_structure    = h1->picture_structure;
385
43
    h->mb_aff_frame         = h1->mb_aff_frame;
386
43
    h->droppable            = h1->droppable;
387
388
1591
    for (i = 0; i < H264_MAX_PICTURE_COUNT; i++) {
389
1548
        ff_h264_unref_picture(h, &h->DPB[i]);
390

1730
        if (h1->DPB[i].f->buf[0] &&
391
182
            (ret = ff_h264_ref_picture(h, &h->DPB[i], &h1->DPB[i])) < 0)
392
            return ret;
393
    }
394
395

43
    h->cur_pic_ptr = REBASE_PICTURE(h1->cur_pic_ptr, h, h1);
396
43
    ff_h264_unref_picture(h, &h->cur_pic);
397
43
    if (h1->cur_pic.f->buf[0]) {
398
43
        ret = ff_h264_ref_picture(h, &h->cur_pic, &h1->cur_pic);
399
43
        if (ret < 0)
400
            return ret;
401
    }
402
403
43
    h->enable_er       = h1->enable_er;
404
43
    h->workaround_bugs = h1->workaround_bugs;
405
43
    h->droppable       = h1->droppable;
406
407
    // extradata/NAL handling
408
43
    h->is_avc = h1->is_avc;
409
43
    h->nal_length_size = h1->nal_length_size;
410
411
43
    memcpy(&h->poc,        &h1->poc,        sizeof(h->poc));
412
413
43
    memcpy(h->short_ref,   h1->short_ref,   sizeof(h->short_ref));
414
43
    memcpy(h->long_ref,    h1->long_ref,    sizeof(h->long_ref));
415
43
    memcpy(h->delayed_pic, h1->delayed_pic, sizeof(h->delayed_pic));
416
43
    memcpy(h->last_pocs,   h1->last_pocs,   sizeof(h->last_pocs));
417
418
43
    h->next_output_pic   = h1->next_output_pic;
419
43
    h->next_outputed_poc = h1->next_outputed_poc;
420
421
43
    memcpy(h->mmco, h1->mmco, sizeof(h->mmco));
422
43
    h->nb_mmco         = h1->nb_mmco;
423
43
    h->mmco_reset      = h1->mmco_reset;
424
43
    h->explicit_ref_marking = h1->explicit_ref_marking;
425
43
    h->long_ref_count  = h1->long_ref_count;
426
43
    h->short_ref_count = h1->short_ref_count;
427
428
43
    copy_picture_range(h->short_ref, h1->short_ref, 32, h, h1);
429
43
    copy_picture_range(h->long_ref, h1->long_ref, 32, h, h1);
430
43
    copy_picture_range(h->delayed_pic, h1->delayed_pic,
431
                       MAX_DELAYED_PIC_COUNT + 2, h, h1);
432
433
43
    h->frame_recovered       = h1->frame_recovered;
434
435
43
    av_buffer_unref(&h->sei.a53_caption.buf_ref);
436
43
    if (h1->sei.a53_caption.buf_ref) {
437
        h->sei.a53_caption.buf_ref = av_buffer_ref(h1->sei.a53_caption.buf_ref);
438
        if (!h->sei.a53_caption.buf_ref)
439
            return AVERROR(ENOMEM);
440
    }
441
442
43
    for (i = 0; i < h->sei.unregistered.nb_buf_ref; i++)
443
        av_buffer_unref(&h->sei.unregistered.buf_ref[i]);
444
43
    h->sei.unregistered.nb_buf_ref = 0;
445
446
43
    if (h1->sei.unregistered.nb_buf_ref) {
447
        ret = av_reallocp_array(&h->sei.unregistered.buf_ref,
448
                                h1->sei.unregistered.nb_buf_ref,
449
                                sizeof(*h->sei.unregistered.buf_ref));
450
        if (ret < 0)
451
            return ret;
452
453
        for (i = 0; i < h1->sei.unregistered.nb_buf_ref; i++) {
454
            h->sei.unregistered.buf_ref[i] = av_buffer_ref(h1->sei.unregistered.buf_ref[i]);
455
            if (!h->sei.unregistered.buf_ref[i])
456
                return AVERROR(ENOMEM);
457
            h->sei.unregistered.nb_buf_ref++;
458
        }
459
    }
460
43
    h->sei.unregistered.x264_build = h1->sei.unregistered.x264_build;
461
462
43
    if (!h->cur_pic_ptr)
463
11
        return 0;
464
465
32
    if (!h->droppable) {
466
19
        err = ff_h264_execute_ref_pic_marking(h);
467
19
        h->poc.prev_poc_msb = h->poc.poc_msb;
468
19
        h->poc.prev_poc_lsb = h->poc.poc_lsb;
469
    }
470
32
    h->poc.prev_frame_num_offset = h->poc.frame_num_offset;
471
32
    h->poc.prev_frame_num        = h->poc.frame_num;
472
473
32
    h->recovery_frame        = h1->recovery_frame;
474
475
32
    return err;
476
}
477
478
23346
static int h264_frame_start(H264Context *h)
479
{
480
    H264Picture *pic;
481
    int i, ret;
482
23346
    const int pixel_shift = h->pixel_shift;
483
484
23346
    if (!ff_thread_can_start_frame(h->avctx)) {
485
        av_log(h->avctx, AV_LOG_ERROR, "Attempt to start a frame outside SETUP state\n");
486
        return -1;
487
    }
488
489
23346
    release_unused_pictures(h, 1);
490
23346
    h->cur_pic_ptr = NULL;
491
492
23346
    i = find_unused_picture(h);
493
23346
    if (i < 0) {
494
        av_log(h->avctx, AV_LOG_ERROR, "no frame buffer available\n");
495
        return i;
496
    }
497
23346
    pic = &h->DPB[i];
498
499
23346
    pic->reference              = h->droppable ? 0 : h->picture_structure;
500
23346
    pic->f->coded_picture_number = h->coded_picture_number++;
501
23346
    pic->field_picture          = h->picture_structure != PICT_FRAME;
502
23346
    pic->frame_num               = h->poc.frame_num;
503
    /*
504
     * Zero key_frame here; IDR markings per slice in frame or fields are ORed
505
     * in later.
506
     * See decode_nal_units().
507
     */
508
23346
    pic->f->key_frame = 0;
509
23346
    pic->mmco_reset  = 0;
510
23346
    pic->recovered   = 0;
511
23346
    pic->invalid_gap = 0;
512
23346
    pic->sei_recovery_frame_cnt = h->sei.recovery_point.recovery_frame_cnt;
513
514
23346
    pic->f->pict_type = h->slice_ctx[0].slice_type;
515
516
23346
    pic->f->crop_left   = h->crop_left;
517
23346
    pic->f->crop_right  = h->crop_right;
518
23346
    pic->f->crop_top    = h->crop_top;
519
23346
    pic->f->crop_bottom = h->crop_bottom;
520
521
23346
    if ((ret = alloc_picture(h, pic)) < 0)
522
        return ret;
523
524
23346
    h->cur_pic_ptr = pic;
525
23346
    ff_h264_unref_picture(h, &h->cur_pic);
526
    if (CONFIG_ERROR_RESILIENCE) {
527
23346
        ff_h264_set_erpic(&h->slice_ctx[0].er.cur_pic, NULL);
528
    }
529
530
23346
    if ((ret = ff_h264_ref_picture(h, &h->cur_pic, h->cur_pic_ptr)) < 0)
531
        return ret;
532
533
46992
    for (i = 0; i < h->nb_slice_ctx; i++) {
534
23646
        h->slice_ctx[i].linesize   = h->cur_pic_ptr->f->linesize[0];
535
23646
        h->slice_ctx[i].uvlinesize = h->cur_pic_ptr->f->linesize[1];
536
    }
537
538
23346
    if (CONFIG_ERROR_RESILIENCE && h->enable_er) {
539
23046
        ff_er_frame_start(&h->slice_ctx[0].er);
540
23046
        ff_h264_set_erpic(&h->slice_ctx[0].er.last_pic, NULL);
541
23046
        ff_h264_set_erpic(&h->slice_ctx[0].er.next_pic, NULL);
542
    }
543
544
396882
    for (i = 0; i < 16; i++) {
545
373536
        h->block_offset[i]           = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 4 * pic->f->linesize[0] * ((scan8[i] - scan8[0]) >> 3);
546
373536
        h->block_offset[48 + i]      = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 8 * pic->f->linesize[0] * ((scan8[i] - scan8[0]) >> 3);
547
    }
548
396882
    for (i = 0; i < 16; i++) {
549
373536
        h->block_offset[16 + i]      =
550
373536
        h->block_offset[32 + i]      = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 4 * pic->f->linesize[1] * ((scan8[i] - scan8[0]) >> 3);
551
373536
        h->block_offset[48 + 16 + i] =
552
373536
        h->block_offset[48 + 32 + i] = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 8 * pic->f->linesize[1] * ((scan8[i] - scan8[0]) >> 3);
553
    }
554
555
    /* We mark the current picture as non-reference after allocating it, so
556
     * that if we break out due to an error it can be released automatically
557
     * in the next ff_mpv_frame_start().
558
     */
559
23346
    h->cur_pic_ptr->reference = 0;
560
561
23346
    h->cur_pic_ptr->field_poc[0] = h->cur_pic_ptr->field_poc[1] = INT_MAX;
562
563
23346
    h->next_output_pic = NULL;
564
565
23346
    h->postpone_filter = 0;
566
567

23346
    h->mb_aff_frame = h->ps.sps->mb_aff && (h->picture_structure == PICT_FRAME);
568
569
23346
    if (h->sei.unregistered.x264_build >= 0)
570
1824
        h->x264_build = h->sei.unregistered.x264_build;
571
572
    assert(h->cur_pic_ptr->long_ref == 0);
573
574
23346
    return 0;
575
}
576
577
10756383
static av_always_inline void backup_mb_border(const H264Context *h, H264SliceContext *sl,
578
                                              uint8_t *src_y,
579
                                              uint8_t *src_cb, uint8_t *src_cr,
580
                                              int linesize, int uvlinesize,
581
                                              int simple)
582
{
583
    uint8_t *top_border;
584
10756383
    int top_idx = 1;
585
10756383
    const int pixel_shift = h->pixel_shift;
586
10756383
    int chroma444 = CHROMA444(h);
587
10756383
    int chroma422 = CHROMA422(h);
588
589
10756383
    src_y  -= linesize;
590
10756383
    src_cb -= uvlinesize;
591
10756383
    src_cr -= uvlinesize;
592
593

10756383
    if (!simple && FRAME_MBAFF(h)) {
594
1814136
        if (sl->mb_y & 1) {
595
907068
            if (!MB_MBAFF(sl)) {
596
665811
                top_border = sl->top_borders[0][sl->mb_x];
597
665811
                AV_COPY128(top_border, src_y + 15 * linesize);
598
665811
                if (pixel_shift)
599
213139
                    AV_COPY128(top_border + 16, src_y + 15 * linesize + 16);
600
                if (simple || !CONFIG_GRAY || !(h->flags & AV_CODEC_FLAG_GRAY)) {
601
665811
                    if (chroma444) {
602
                        if (pixel_shift) {
603
                            AV_COPY128(top_border + 32, src_cb + 15 * uvlinesize);
604
                            AV_COPY128(top_border + 48, src_cb + 15 * uvlinesize + 16);
605
                            AV_COPY128(top_border + 64, src_cr + 15 * uvlinesize);
606
                            AV_COPY128(top_border + 80, src_cr + 15 * uvlinesize + 16);
607
                        } else {
608
                            AV_COPY128(top_border + 16, src_cb + 15 * uvlinesize);
609
                            AV_COPY128(top_border + 32, src_cr + 15 * uvlinesize);
610
                        }
611
665811
                    } else if (chroma422) {
612
106510
                        if (pixel_shift) {
613
106510
                            AV_COPY128(top_border + 32, src_cb + 15 * uvlinesize);
614
106510
                            AV_COPY128(top_border + 48, src_cr + 15 * uvlinesize);
615
                        } else {
616
                            AV_COPY64(top_border + 16, src_cb + 15 * uvlinesize);
617
                            AV_COPY64(top_border + 24, src_cr + 15 * uvlinesize);
618
                        }
619
                    } else {
620
559301
                        if (pixel_shift) {
621
106629
                            AV_COPY128(top_border + 32, src_cb + 7 * uvlinesize);
622
106629
                            AV_COPY128(top_border + 48, src_cr + 7 * uvlinesize);
623
                        } else {
624
452672
                            AV_COPY64(top_border + 16, src_cb + 7 * uvlinesize);
625
452672
                            AV_COPY64(top_border + 24, src_cr + 7 * uvlinesize);
626
                        }
627
                    }
628
                }
629
            }
630
907068
        } else if (MB_MBAFF(sl)) {
631
241257
            top_idx = 0;
632
        } else
633
665811
            return;
634
    }
635
636
10090572
    top_border = sl->top_borders[top_idx][sl->mb_x];
637
    /* There are two lines saved, the line above the top macroblock
638
     * of a pair, and the line above the bottom macroblock. */
639
10090572
    AV_COPY128(top_border, src_y + 16 * linesize);
640
10090572
    if (pixel_shift)
641
1300901
        AV_COPY128(top_border + 16, src_y + 16 * linesize + 16);
642
643
    if (simple || !CONFIG_GRAY || !(h->flags & AV_CODEC_FLAG_GRAY)) {
644
10090572
        if (chroma444) {
645
39528
            if (pixel_shift) {
646
19800
                AV_COPY128(top_border + 32, src_cb + 16 * linesize);
647
19800
                AV_COPY128(top_border + 48, src_cb + 16 * linesize + 16);
648
19800
                AV_COPY128(top_border + 64, src_cr + 16 * linesize);
649
19800
                AV_COPY128(top_border + 80, src_cr + 16 * linesize + 16);
650
            } else {
651
19728
                AV_COPY128(top_border + 16, src_cb + 16 * linesize);
652
19728
                AV_COPY128(top_border + 32, src_cr + 16 * linesize);
653
            }
654
10051044
        } else if (chroma422) {
655
588635
            if (pixel_shift) {
656
584675
                AV_COPY128(top_border + 32, src_cb + 16 * uvlinesize);
657
584675
                AV_COPY128(top_border + 48, src_cr + 16 * uvlinesize);
658
            } else {
659
3960
                AV_COPY64(top_border + 16, src_cb + 16 * uvlinesize);
660
3960
                AV_COPY64(top_border + 24, src_cr + 16 * uvlinesize);
661
            }
662
        } else {
663
9462409
            if (pixel_shift) {
664
696426
                AV_COPY128(top_border + 32, src_cb + 8 * uvlinesize);
665
696426
                AV_COPY128(top_border + 48, src_cr + 8 * uvlinesize);
666
            } else {
667
8765983
                AV_COPY64(top_border + 16, src_cb + 8 * uvlinesize);
668
8765983
                AV_COPY64(top_border + 24, src_cr + 8 * uvlinesize);
669
            }
670
        }
671
    }
672
}
673
674
/**
675
 * Initialize implicit_weight table.
676
 * @param field  0/1 initialize the weight for interlaced MBAFF
677
 *                -1 initializes the rest
678
 */
679
3299
static void implicit_weight_table(const H264Context *h, H264SliceContext *sl, int field)
680
{
681
    int ref0, ref1, i, cur_poc, ref_start, ref_count0, ref_count1;
682
683
9897
    for (i = 0; i < 2; i++) {
684
6598
        sl->pwt.luma_weight_flag[i]   = 0;
685
6598
        sl->pwt.chroma_weight_flag[i] = 0;
686
    }
687
688
3299
    if (field < 0) {
689
1589
        if (h->picture_structure == PICT_FRAME) {
690
1589
            cur_poc = h->cur_pic_ptr->poc;
691
        } else {
692
            cur_poc = h->cur_pic_ptr->field_poc[h->picture_structure - 1];
693
        }
694

1589
        if (sl->ref_count[0] == 1 && sl->ref_count[1] == 1 && !FRAME_MBAFF(h) &&
695
97
            sl->ref_list[0][0].poc + (int64_t)sl->ref_list[1][0].poc == 2LL * cur_poc) {
696
34
            sl->pwt.use_weight        = 0;
697
34
            sl->pwt.use_weight_chroma = 0;
698
34
            return;
699
        }
700
1555
        ref_start  = 0;
701
1555
        ref_count0 = sl->ref_count[0];
702
1555
        ref_count1 = sl->ref_count[1];
703
    } else {
704
1710
        cur_poc    = h->cur_pic_ptr->field_poc[field];
705
1710
        ref_start  = 16;
706
1710
        ref_count0 = 16 + 2 * sl->ref_count[0];
707
1710
        ref_count1 = 16 + 2 * sl->ref_count[1];
708
    }
709
710
3265
    sl->pwt.use_weight               = 2;
711
3265
    sl->pwt.use_weight_chroma        = 2;
712
3265
    sl->pwt.luma_log2_weight_denom   = 5;
713
3265
    sl->pwt.chroma_log2_weight_denom = 5;
714
715
14879
    for (ref0 = ref_start; ref0 < ref_count0; ref0++) {
716
11614
        int64_t poc0 = sl->ref_list[0][ref0].poc;
717
33317
        for (ref1 = ref_start; ref1 < ref_count1; ref1++) {
718
21703
            int w = 32;
719

21703
            if (!sl->ref_list[0][ref0].parent->long_ref && !sl->ref_list[1][ref1].parent->long_ref) {
720
21703
                int poc1 = sl->ref_list[1][ref1].poc;
721
21703
                int td   = av_clip_int8(poc1 - poc0);
722
21703
                if (td) {
723
21637
                    int tb = av_clip_int8(cur_poc - poc0);
724
21637
                    int tx = (16384 + (FFABS(td) >> 1)) / td;
725
21637
                    int dist_scale_factor = (tb * tx + 32) >> 8;
726

21637
                    if (dist_scale_factor >= -64 && dist_scale_factor <= 128)
727
21633
                        w = 64 - dist_scale_factor;
728
                }
729
            }
730
21703
            if (field < 0) {
731
5823
                sl->pwt.implicit_weight[ref0][ref1][0] =
732
5823
                sl->pwt.implicit_weight[ref0][ref1][1] = w;
733
            } else {
734
15880
                sl->pwt.implicit_weight[ref0][ref1][field] = w;
735
            }
736
        }
737
    }
738
}
739
740
/**
741
 * initialize scan tables
742
 */
743
534
static void init_scan_tables(H264Context *h)
744
{
745
    int i;
746
9078
    for (i = 0; i < 16; i++) {
747
#define TRANSPOSE(x) ((x) >> 2) | (((x) << 2) & 0xF)
748
8544
        h->zigzag_scan[i] = TRANSPOSE(ff_zigzag_scan[i]);
749
8544
        h->field_scan[i]  = TRANSPOSE(field_scan[i]);
750
#undef TRANSPOSE
751
    }
752
34710
    for (i = 0; i < 64; i++) {
753
#define TRANSPOSE(x) ((x) >> 3) | (((x) & 7) << 3)
754
34176
        h->zigzag_scan8x8[i]       = TRANSPOSE(ff_zigzag_direct[i]);
755
34176
        h->zigzag_scan8x8_cavlc[i] = TRANSPOSE(zigzag_scan8x8_cavlc[i]);
756
34176
        h->field_scan8x8[i]        = TRANSPOSE(field_scan8x8[i]);
757
34176
        h->field_scan8x8_cavlc[i]  = TRANSPOSE(field_scan8x8_cavlc[i]);
758
#undef TRANSPOSE
759
    }
760
534
    if (h->ps.sps->transform_bypass) { // FIXME same ugly
761
12
        memcpy(h->zigzag_scan_q0          , ff_zigzag_scan          , sizeof(h->zigzag_scan_q0         ));
762
12
        memcpy(h->zigzag_scan8x8_q0       , ff_zigzag_direct        , sizeof(h->zigzag_scan8x8_q0      ));
763
12
        memcpy(h->zigzag_scan8x8_cavlc_q0 , zigzag_scan8x8_cavlc    , sizeof(h->zigzag_scan8x8_cavlc_q0));
764
12
        memcpy(h->field_scan_q0           , field_scan              , sizeof(h->field_scan_q0          ));
765
12
        memcpy(h->field_scan8x8_q0        , field_scan8x8           , sizeof(h->field_scan8x8_q0       ));
766
12
        memcpy(h->field_scan8x8_cavlc_q0  , field_scan8x8_cavlc     , sizeof(h->field_scan8x8_cavlc_q0 ));
767
    } else {
768
522
        memcpy(h->zigzag_scan_q0          , h->zigzag_scan          , sizeof(h->zigzag_scan_q0         ));
769
522
        memcpy(h->zigzag_scan8x8_q0       , h->zigzag_scan8x8       , sizeof(h->zigzag_scan8x8_q0      ));
770
522
        memcpy(h->zigzag_scan8x8_cavlc_q0 , h->zigzag_scan8x8_cavlc , sizeof(h->zigzag_scan8x8_cavlc_q0));
771
522
        memcpy(h->field_scan_q0           , h->field_scan           , sizeof(h->field_scan_q0          ));
772
522
        memcpy(h->field_scan8x8_q0        , h->field_scan8x8        , sizeof(h->field_scan8x8_q0       ));
773
522
        memcpy(h->field_scan8x8_cavlc_q0  , h->field_scan8x8_cavlc  , sizeof(h->field_scan8x8_cavlc_q0 ));
774
    }
775
534
}
776
777
26147
static enum AVPixelFormat get_pixel_format(H264Context *h, int force_callback)
778
{
779
#define HWACCEL_MAX (CONFIG_H264_DXVA2_HWACCEL + \
780
                     (CONFIG_H264_D3D11VA_HWACCEL * 2) + \
781
                     CONFIG_H264_NVDEC_HWACCEL + \
782
                     CONFIG_H264_VAAPI_HWACCEL + \
783
                     CONFIG_H264_VIDEOTOOLBOX_HWACCEL + \
784
                     CONFIG_H264_VDPAU_HWACCEL)
785
26147
    enum AVPixelFormat pix_fmts[HWACCEL_MAX + 2], *fmt = pix_fmts;
786
26147
    const enum AVPixelFormat *choices = pix_fmts;
787
    int i;
788
789

26147
    switch (h->ps.sps->bit_depth_luma) {
790
155
    case 9:
791
155
        if (CHROMA444(h)) {
792
            if (h->avctx->colorspace == AVCOL_SPC_RGB) {
793
                *fmt++ = AV_PIX_FMT_GBRP9;
794
            } else
795
                *fmt++ = AV_PIX_FMT_YUV444P9;
796
155
        } else if (CHROMA422(h))
797
52
            *fmt++ = AV_PIX_FMT_YUV422P9;
798
        else
799
103
            *fmt++ = AV_PIX_FMT_YUV420P9;
800
155
        break;
801
355
    case 10:
802
355
        if (CHROMA444(h)) {
803
51
            if (h->avctx->colorspace == AVCOL_SPC_RGB) {
804
                *fmt++ = AV_PIX_FMT_GBRP10;
805
            } else
806
51
                *fmt++ = AV_PIX_FMT_YUV444P10;
807
304
        } else if (CHROMA422(h))
808
164
            *fmt++ = AV_PIX_FMT_YUV422P10;
809
        else
810
140
            *fmt++ = AV_PIX_FMT_YUV420P10;
811
355
        break;
812
    case 12:
813
        if (CHROMA444(h)) {
814
            if (h->avctx->colorspace == AVCOL_SPC_RGB) {
815
                *fmt++ = AV_PIX_FMT_GBRP12;
816
            } else
817
                *fmt++ = AV_PIX_FMT_YUV444P12;
818
        } else if (CHROMA422(h))
819
            *fmt++ = AV_PIX_FMT_YUV422P12;
820
        else
821
            *fmt++ = AV_PIX_FMT_YUV420P12;
822
        break;
823
    case 14:
824
        if (CHROMA444(h)) {
825
            if (h->avctx->colorspace == AVCOL_SPC_RGB) {
826
                *fmt++ = AV_PIX_FMT_GBRP14;
827
            } else
828
                *fmt++ = AV_PIX_FMT_YUV444P14;
829
        } else if (CHROMA422(h))
830
            *fmt++ = AV_PIX_FMT_YUV422P14;
831
        else
832
            *fmt++ = AV_PIX_FMT_YUV420P14;
833
        break;
834
25637
    case 8:
835
#if CONFIG_H264_VDPAU_HWACCEL
836
25637
        *fmt++ = AV_PIX_FMT_VDPAU;
837
#endif
838
#if CONFIG_H264_NVDEC_HWACCEL
839
        *fmt++ = AV_PIX_FMT_CUDA;
840
#endif
841
25637
        if (CHROMA444(h)) {
842
400
            if (h->avctx->colorspace == AVCOL_SPC_RGB)
843
                *fmt++ = AV_PIX_FMT_GBRP;
844
400
            else if (h->avctx->color_range == AVCOL_RANGE_JPEG)
845
                *fmt++ = AV_PIX_FMT_YUVJ444P;
846
            else
847
400
                *fmt++ = AV_PIX_FMT_YUV444P;
848
25237
        } else if (CHROMA422(h)) {
849
22
            if (h->avctx->color_range == AVCOL_RANGE_JPEG)
850
                *fmt++ = AV_PIX_FMT_YUVJ422P;
851
            else
852
22
                *fmt++ = AV_PIX_FMT_YUV422P;
853
        } else {
854
#if CONFIG_H264_DXVA2_HWACCEL
855
            *fmt++ = AV_PIX_FMT_DXVA2_VLD;
856
#endif
857
#if CONFIG_H264_D3D11VA_HWACCEL
858
            *fmt++ = AV_PIX_FMT_D3D11VA_VLD;
859
            *fmt++ = AV_PIX_FMT_D3D11;
860
#endif
861
#if CONFIG_H264_VAAPI_HWACCEL
862
25215
            *fmt++ = AV_PIX_FMT_VAAPI;
863
#endif
864
#if CONFIG_H264_VIDEOTOOLBOX_HWACCEL
865
            *fmt++ = AV_PIX_FMT_VIDEOTOOLBOX;
866
#endif
867
25215
            if (h->avctx->codec->pix_fmts)
868
                choices = h->avctx->codec->pix_fmts;
869
25215
            else if (h->avctx->color_range == AVCOL_RANGE_JPEG)
870
3
                *fmt++ = AV_PIX_FMT_YUVJ420P;
871
            else
872
25212
                *fmt++ = AV_PIX_FMT_YUV420P;
873
        }
874
25637
        break;
875
    default:
876
        av_log(h->avctx, AV_LOG_ERROR,
877
               "Unsupported bit depth %d\n", h->ps.sps->bit_depth_luma);
878
        return AVERROR_INVALIDDATA;
879
    }
880
881
26147
    *fmt = AV_PIX_FMT_NONE;
882
883
77528
    for (i=0; choices[i] != AV_PIX_FMT_NONE; i++)
884

76999
        if (choices[i] == h->avctx->pix_fmt && !force_callback)
885
25618
            return choices[i];
886
529
    return ff_thread_get_format(h->avctx, choices);
887
}
888
889
/* export coded and cropped frame dimensions to AVCodecContext */
890
25907
static void init_dimensions(H264Context *h)
891
{
892
25907
    const SPS *sps = (const SPS*)h->ps.sps;
893
25907
    int cr = sps->crop_right;
894
25907
    int cl = sps->crop_left;
895
25907
    int ct = sps->crop_top;
896
25907
    int cb = sps->crop_bottom;
897
25907
    int width  = h->width  - (cr + cl);
898
25907
    int height = h->height - (ct + cb);
899
25907
    av_assert0(sps->crop_right + sps->crop_left < (unsigned)h->width);
900
25907
    av_assert0(sps->crop_top + sps->crop_bottom < (unsigned)h->height);
901
902
    /* handle container cropping */
903

25907
    if (h->width_from_caller > 0 && h->height_from_caller > 0     &&
904

23712
        !sps->crop_top && !sps->crop_left                         &&
905
23711
        FFALIGN(h->width_from_caller,  16) == FFALIGN(width,  16) &&
906
23706
        FFALIGN(h->height_from_caller, 16) == FFALIGN(height, 16) &&
907
23706
        h->width_from_caller  <= width &&
908
23706
        h->height_from_caller <= height) {
909
23705
        width  = h->width_from_caller;
910
23705
        height = h->height_from_caller;
911
23705
        cl = 0;
912
23705
        ct = 0;
913
23705
        cr = h->width - width;
914
23705
        cb = h->height - height;
915
    } else {
916
2202
        h->width_from_caller  = 0;
917
2202
        h->height_from_caller = 0;
918
    }
919
920
25907
    h->avctx->coded_width  = h->width;
921
25907
    h->avctx->coded_height = h->height;
922
25907
    h->avctx->width        = width;
923
25907
    h->avctx->height       = height;
924
25907
    h->crop_right          = cr;
925
25907
    h->crop_left           = cl;
926
25907
    h->crop_top            = ct;
927
25907
    h->crop_bottom         = cb;
928
25907
}
929
930
534
static int h264_slice_header_init(H264Context *h)
931
{
932
534
    const SPS *sps = h->ps.sps;
933
    int i, ret;
934
935
534
    ff_set_sar(h->avctx, sps->sar);
936
534
    av_pix_fmt_get_chroma_sub_sample(h->avctx->pix_fmt,
937
                                     &h->chroma_x_shift, &h->chroma_y_shift);
938
939
534
    if (sps->timing_info_present_flag) {
940
131
        int64_t den = sps->time_scale;
941
131
        if (h->x264_build < 44U)
942
            den *= 2;
943
131
        av_reduce(&h->avctx->framerate.den, &h->avctx->framerate.num,
944
131
                  sps->num_units_in_tick * h->avctx->ticks_per_frame, den, 1 << 30);
945
    }
946
947
534
    ff_h264_free_tables(h);
948
949
534
    h->first_field           = 0;
950
534
    h->prev_interlaced_frame = 1;
951
952
534
    init_scan_tables(h);
953
534
    ret = ff_h264_alloc_tables(h);
954
534
    if (ret < 0) {
955
        av_log(h->avctx, AV_LOG_ERROR, "Could not allocate memory\n");
956
        goto fail;
957
    }
958
959

534
    if (sps->bit_depth_luma < 8 || sps->bit_depth_luma > 14 ||
960

534
        sps->bit_depth_luma == 11 || sps->bit_depth_luma == 13
961
    ) {
962
        av_log(h->avctx, AV_LOG_ERROR, "Unsupported bit depth %d\n",
963
               sps->bit_depth_luma);
964
        ret = AVERROR_INVALIDDATA;
965
        goto fail;
966
    }
967
968
534
    h->cur_bit_depth_luma         =
969
534
    h->avctx->bits_per_raw_sample = sps->bit_depth_luma;
970
534
    h->cur_chroma_format_idc      = sps->chroma_format_idc;
971
534
    h->pixel_shift                = sps->bit_depth_luma > 8;
972
534
    h->chroma_format_idc          = sps->chroma_format_idc;
973
534
    h->bit_depth_luma             = sps->bit_depth_luma;
974
975
534
    ff_h264dsp_init(&h->h264dsp, sps->bit_depth_luma,
976
                    sps->chroma_format_idc);
977
534
    ff_h264chroma_init(&h->h264chroma, sps->bit_depth_chroma);
978
534
    ff_h264qpel_init(&h->h264qpel, sps->bit_depth_luma);
979
534
    ff_h264_pred_init(&h->hpc, h->avctx->codec_id, sps->bit_depth_luma,
980
                      sps->chroma_format_idc);
981
534
    ff_videodsp_init(&h->vdsp, sps->bit_depth_luma);
982
983
534
    if (!HAVE_THREADS || !(h->avctx->active_thread_type & FF_THREAD_SLICE)) {
984
533
        ret = ff_h264_slice_context_init(h, &h->slice_ctx[0]);
985
533
        if (ret < 0) {
986
            av_log(h->avctx, AV_LOG_ERROR, "context_init() failed.\n");
987
            goto fail;
988
        }
989
    } else {
990
3
        for (i = 0; i < h->nb_slice_ctx; i++) {
991
2
            H264SliceContext *sl = &h->slice_ctx[i];
992
993
2
            sl->h264               = h;
994
2
            sl->intra4x4_pred_mode = h->intra4x4_pred_mode + i * 8 * 2 * h->mb_stride;
995
2
            sl->mvd_table[0]       = h->mvd_table[0]       + i * 8 * 2 * h->mb_stride;
996
2
            sl->mvd_table[1]       = h->mvd_table[1]       + i * 8 * 2 * h->mb_stride;
997
998
2
            if ((ret = ff_h264_slice_context_init(h, sl)) < 0) {
999
                av_log(h->avctx, AV_LOG_ERROR, "context_init() failed.\n");
1000
                goto fail;
1001
            }
1002
        }
1003
    }
1004
1005
534
    h->context_initialized = 1;
1006
1007
534
    return 0;
1008
fail:
1009
    ff_h264_free_tables(h);
1010
    h->context_initialized = 0;
1011
    return ret;
1012
}
1013
1014
51242
static enum AVPixelFormat non_j_pixfmt(enum AVPixelFormat a)
1015
{
1016

51242
    switch (a) {
1017
2
    case AV_PIX_FMT_YUVJ420P: return AV_PIX_FMT_YUV420P;
1018
    case AV_PIX_FMT_YUVJ422P: return AV_PIX_FMT_YUV422P;
1019
    case AV_PIX_FMT_YUVJ444P: return AV_PIX_FMT_YUV444P;
1020
51240
    default:
1021
51240
        return a;
1022
    }
1023
}
1024
1025
25907
static int h264_init_ps(H264Context *h, const H264SliceContext *sl, int first_slice)
1026
{
1027
    const SPS *sps;
1028
25907
    int needs_reinit = 0, must_reinit, ret;
1029
1030
25907
    if (first_slice) {
1031
25714
        av_buffer_unref(&h->ps.pps_ref);
1032
25714
        h->ps.pps = NULL;
1033
25714
        h->ps.pps_ref = av_buffer_ref(h->ps.pps_list[sl->pps_id]);
1034
25714
        if (!h->ps.pps_ref)
1035
            return AVERROR(ENOMEM);
1036
25714
        h->ps.pps = (const PPS*)h->ps.pps_ref->data;
1037
    }
1038
1039
25907
    if (h->ps.sps != h->ps.pps->sps) {
1040
530
        h->ps.sps = (const SPS*)h->ps.pps->sps;
1041
1042
530
        if (h->mb_width  != h->ps.sps->mb_width ||
1043
6
            h->mb_height != h->ps.sps->mb_height ||
1044
6
            h->cur_bit_depth_luma    != h->ps.sps->bit_depth_luma ||
1045
5
            h->cur_chroma_format_idc != h->ps.sps->chroma_format_idc
1046
        )
1047
526
            needs_reinit = 1;
1048
1049
530
        if (h->bit_depth_luma    != h->ps.sps->bit_depth_luma ||
1050
8
            h->chroma_format_idc != h->ps.sps->chroma_format_idc)
1051
523
            needs_reinit         = 1;
1052
    }
1053
25907
    sps = h->ps.sps;
1054
1055
51294
    must_reinit = (h->context_initialized &&
1056
25387
                    (   16*sps->mb_width != h->avctx->coded_width
1057
25383
                     || 16*sps->mb_height != h->avctx->coded_height
1058
25383
                     || h->cur_bit_depth_luma    != sps->bit_depth_luma
1059
25382
                     || h->cur_chroma_format_idc != sps->chroma_format_idc
1060
25381
                     || h->mb_width  != sps->mb_width
1061
25381
                     || h->mb_height != sps->mb_height
1062
                    ));
1063
25907
    if (h->avctx->pix_fmt == AV_PIX_FMT_NONE
1064
25621
        || (non_j_pixfmt(h->avctx->pix_fmt) != non_j_pixfmt(get_pixel_format(h, 0))))
1065
289
        must_reinit = 1;
1066
1067

25907
    if (first_slice && av_cmp_q(sps->sar, h->avctx->sample_aspect_ratio))
1068
48
        must_reinit = 1;
1069
1070
25907
    if (!h->setup_finished) {
1071
25907
        h->avctx->profile = ff_h264_get_profile(sps);
1072
25907
        h->avctx->level   = sps->level_idc;
1073
25907
        h->avctx->refs    = sps->ref_frame_count;
1074
1075
25907
        h->mb_width  = sps->mb_width;
1076
25907
        h->mb_height = sps->mb_height;
1077
25907
        h->mb_num    = h->mb_width * h->mb_height;
1078
25907
        h->mb_stride = h->mb_width + 1;
1079
1080
25907
        h->b_stride = h->mb_width * 4;
1081
1082
25907
        h->chroma_y_shift = sps->chroma_format_idc <= 1; // 400 uses yuv420p
1083
1084
25907
        h->width  = 16 * h->mb_width;
1085
25907
        h->height = 16 * h->mb_height;
1086
1087
25907
        init_dimensions(h);
1088
1089
25907
        if (sps->video_signal_type_present_flag) {
1090
1338
            h->avctx->color_range = sps->full_range > 0 ? AVCOL_RANGE_JPEG
1091
669
                                                        : AVCOL_RANGE_MPEG;
1092
669
            if (sps->colour_description_present_flag) {
1093
571
                if (h->avctx->colorspace != sps->colorspace)
1094
13
                    needs_reinit = 1;
1095
571
                h->avctx->color_primaries = sps->color_primaries;
1096
571
                h->avctx->color_trc       = sps->color_trc;
1097
571
                h->avctx->colorspace      = sps->colorspace;
1098
            }
1099
        }
1100
1101

25907
        if (h->sei.alternative_transfer.present &&
1102
            av_color_transfer_name(h->sei.alternative_transfer.preferred_transfer_characteristics) &&
1103
            h->sei.alternative_transfer.preferred_transfer_characteristics != AVCOL_TRC_UNSPECIFIED) {
1104
            h->avctx->color_trc = h->sei.alternative_transfer.preferred_transfer_characteristics;
1105
        }
1106
    }
1107
25907
    h->avctx->chroma_sample_location = sps->chroma_location;
1108
1109

25907
    if (!h->context_initialized || must_reinit || needs_reinit) {
1110
526
        int flush_changes = h->context_initialized;
1111
526
        h->context_initialized = 0;
1112
526
        if (sl != h->slice_ctx) {
1113
            av_log(h->avctx, AV_LOG_ERROR,
1114
                   "changing width %d -> %d / height %d -> %d on "
1115
                   "slice %d\n",
1116
                   h->width, h->avctx->coded_width,
1117
                   h->height, h->avctx->coded_height,
1118
                   h->current_slice + 1);
1119
            return AVERROR_INVALIDDATA;
1120
        }
1121
1122
        av_assert1(first_slice);
1123
1124
526
        if (flush_changes)
1125
6
            ff_h264_flush_change(h);
1126
1127
526
        if ((ret = get_pixel_format(h, 1)) < 0)
1128
            return ret;
1129
526
        h->avctx->pix_fmt = ret;
1130
1131
526
        av_log(h->avctx, AV_LOG_VERBOSE, "Reinit context to %dx%d, "
1132
526
               "pix_fmt: %s\n", h->width, h->height, av_get_pix_fmt_name(h->avctx->pix_fmt));
1133
1134
526
        if ((ret = h264_slice_header_init(h)) < 0) {
1135
            av_log(h->avctx, AV_LOG_ERROR,
1136
                   "h264_slice_header_init() failed\n");
1137
            return ret;
1138
        }
1139
    }
1140
1141
25907
    return 0;
1142
}
1143
1144
22670
static int h264_export_frame_props(H264Context *h)
1145
{
1146
22670
    const SPS *sps = h->ps.sps;
1147
22670
    H264Picture *cur = h->cur_pic_ptr;
1148
22670
    AVFrame *out = cur->f;
1149
1150
22670
    out->interlaced_frame = 0;
1151
22670
    out->repeat_pict      = 0;
1152
1153
    /* Signal interlacing information externally. */
1154
    /* Prioritize picture timing SEI information over used
1155
     * decoding process if it exists. */
1156
22670
    if (h->sei.picture_timing.present) {
1157
1259
        int ret = ff_h264_sei_process_picture_timing(&h->sei.picture_timing, sps,
1158
1259
                                                     h->avctx);
1159
1259
        if (ret < 0) {
1160
            av_log(h->avctx, AV_LOG_ERROR, "Error processing a picture timing SEI\n");
1161
            if (h->avctx->err_recognition & AV_EF_EXPLODE)
1162
                return ret;
1163
            h->sei.picture_timing.present = 0;
1164
        }
1165
    }
1166
1167

23921
    if (sps->pic_struct_present_flag && h->sei.picture_timing.present) {
1168
1251
        H264SEIPictureTiming *pt = &h->sei.picture_timing;
1169

1251
        switch (pt->pic_struct) {
1170
132
        case H264_SEI_PIC_STRUCT_FRAME:
1171
132
            break;
1172
248
        case H264_SEI_PIC_STRUCT_TOP_FIELD:
1173
        case H264_SEI_PIC_STRUCT_BOTTOM_FIELD:
1174
248
            out->interlaced_frame = 1;
1175
248
            break;
1176
704
        case H264_SEI_PIC_STRUCT_TOP_BOTTOM:
1177
        case H264_SEI_PIC_STRUCT_BOTTOM_TOP:
1178

704
            if (FIELD_OR_MBAFF_PICTURE(h))
1179
700
                out->interlaced_frame = 1;
1180
            else
1181
                // try to flag soft telecine progressive
1182
4
                out->interlaced_frame = h->prev_interlaced_frame;
1183
704
            break;
1184
167
        case H264_SEI_PIC_STRUCT_TOP_BOTTOM_TOP:
1185
        case H264_SEI_PIC_STRUCT_BOTTOM_TOP_BOTTOM:
1186
            /* Signal the possibility of telecined film externally
1187
             * (pic_struct 5,6). From these hints, let the applications
1188
             * decide if they apply deinterlacing. */
1189
167
            out->repeat_pict = 1;
1190
167
            break;
1191
        case H264_SEI_PIC_STRUCT_FRAME_DOUBLING:
1192
            out->repeat_pict = 2;
1193
            break;
1194
        case H264_SEI_PIC_STRUCT_FRAME_TRIPLING:
1195
            out->repeat_pict = 4;
1196
            break;
1197
        }
1198
1199
1251
        if ((pt->ct_type & 3) &&
1200
651
            pt->pic_struct <= H264_SEI_PIC_STRUCT_BOTTOM_TOP)
1201
487
            out->interlaced_frame = (pt->ct_type & (1 << 1)) != 0;
1202
    } else {
1203
        /* Derive interlacing flag from used decoding process. */
1204

21419
        out->interlaced_frame = FIELD_OR_MBAFF_PICTURE(h);
1205
    }
1206
22670
    h->prev_interlaced_frame = out->interlaced_frame;
1207
1208
22670
    if (cur->field_poc[0] != cur->field_poc[1]) {
1209
        /* Derive top_field_first from field pocs. */
1210
3169
        out->top_field_first = cur->field_poc[0] < cur->field_poc[1];
1211
    } else {
1212

19501
        if (sps->pic_struct_present_flag && h->sei.picture_timing.present) {
1213
            /* Use picture timing SEI information. Even if it is a
1214
             * information of a past frame, better than nothing. */
1215
139
            if (h->sei.picture_timing.pic_struct == H264_SEI_PIC_STRUCT_TOP_BOTTOM ||
1216
138
                h->sei.picture_timing.pic_struct == H264_SEI_PIC_STRUCT_TOP_BOTTOM_TOP)
1217
3
                out->top_field_first = 1;
1218
            else
1219
136
                out->top_field_first = 0;
1220
19362
        } else if (out->interlaced_frame) {
1221
            /* Default to top field first when pic_struct_present_flag
1222
             * is not set but interlaced frame detected */
1223
2554
            out->top_field_first = 1;
1224
        } else {
1225
            /* Most likely progressive */
1226
16808
            out->top_field_first = 0;
1227
        }
1228
    }
1229
1230
22670
    if (h->sei.frame_packing.present &&
1231
        h->sei.frame_packing.arrangement_type <= 6 &&
1232
        h->sei.frame_packing.content_interpretation_type > 0 &&
1233
        h->sei.frame_packing.content_interpretation_type < 3) {
1234
        H264SEIFramePacking *fp = &h->sei.frame_packing;
1235
        AVStereo3D *stereo = av_stereo3d_create_side_data(out);
1236
        if (stereo) {
1237
        switch (fp->arrangement_type) {
1238
        case H264_SEI_FPA_TYPE_CHECKERBOARD:
1239
            stereo->type = AV_STEREO3D_CHECKERBOARD;
1240
            break;
1241
        case H264_SEI_FPA_TYPE_INTERLEAVE_COLUMN:
1242
            stereo->type = AV_STEREO3D_COLUMNS;
1243
            break;
1244
        case H264_SEI_FPA_TYPE_INTERLEAVE_ROW:
1245
            stereo->type = AV_STEREO3D_LINES;
1246
            break;
1247
        case H264_SEI_FPA_TYPE_SIDE_BY_SIDE:
1248
            if (fp->quincunx_sampling_flag)
1249
                stereo->type = AV_STEREO3D_SIDEBYSIDE_QUINCUNX;
1250
            else
1251
                stereo->type = AV_STEREO3D_SIDEBYSIDE;
1252
            break;
1253
        case H264_SEI_FPA_TYPE_TOP_BOTTOM:
1254
            stereo->type = AV_STEREO3D_TOPBOTTOM;
1255
            break;
1256
        case H264_SEI_FPA_TYPE_INTERLEAVE_TEMPORAL:
1257
            stereo->type = AV_STEREO3D_FRAMESEQUENCE;
1258
            break;
1259
        case H264_SEI_FPA_TYPE_2D:
1260
            stereo->type = AV_STEREO3D_2D;
1261
            break;
1262
        }
1263
1264
        if (fp->content_interpretation_type == 2)
1265
            stereo->flags = AV_STEREO3D_FLAG_INVERT;
1266
1267
        if (fp->arrangement_type == H264_SEI_FPA_TYPE_INTERLEAVE_TEMPORAL) {
1268
            if (fp->current_frame_is_frame0_flag)
1269
                stereo->view = AV_STEREO3D_VIEW_LEFT;
1270
            else
1271
                stereo->view = AV_STEREO3D_VIEW_RIGHT;
1272
        }
1273
        }
1274
    }
1275
1276
22670
    if (h->sei.display_orientation.present &&
1277
1
        (h->sei.display_orientation.anticlockwise_rotation ||
1278
1
         h->sei.display_orientation.hflip ||
1279
1
         h->sei.display_orientation.vflip)) {
1280
        H264SEIDisplayOrientation *o = &h->sei.display_orientation;
1281
        double angle = o->anticlockwise_rotation * 360 / (double) (1 << 16);
1282
        AVFrameSideData *rotation = av_frame_new_side_data(out,
1283
                                                           AV_FRAME_DATA_DISPLAYMATRIX,
1284
                                                           sizeof(int32_t) * 9);
1285
        if (rotation) {
1286
            av_display_rotation_set((int32_t *)rotation->data, angle);
1287
            av_display_matrix_flip((int32_t *)rotation->data,
1288
                                   o->hflip, o->vflip);
1289
        }
1290
    }
1291
1292
22670
    if (h->sei.afd.present) {
1293
140
        AVFrameSideData *sd = av_frame_new_side_data(out, AV_FRAME_DATA_AFD,
1294
                                                     sizeof(uint8_t));
1295
1296
140
        if (sd) {
1297
140
            *sd->data = h->sei.afd.active_format_description;
1298
140
            h->sei.afd.present = 0;
1299
        }
1300
    }
1301
1302
22670
    if (h->sei.a53_caption.buf_ref) {
1303
1
        H264SEIA53Caption *a53 = &h->sei.a53_caption;
1304
1305
1
        AVFrameSideData *sd = av_frame_new_side_data_from_buf(out, AV_FRAME_DATA_A53_CC, a53->buf_ref);
1306
1
        if (!sd)
1307
            av_buffer_unref(&a53->buf_ref);
1308
1
        a53->buf_ref = NULL;
1309
1310
1
        h->avctx->properties |= FF_CODEC_PROPERTY_CLOSED_CAPTIONS;
1311
    }
1312
1313
22839
    for (int i = 0; i < h->sei.unregistered.nb_buf_ref; i++) {
1314
169
        H264SEIUnregistered *unreg = &h->sei.unregistered;
1315
1316
169
        if (unreg->buf_ref[i]) {
1317
169
            AVFrameSideData *sd = av_frame_new_side_data_from_buf(out,
1318
                    AV_FRAME_DATA_SEI_UNREGISTERED,
1319
169
                    unreg->buf_ref[i]);
1320
169
            if (!sd)
1321
                av_buffer_unref(&unreg->buf_ref[i]);
1322
169
            unreg->buf_ref[i] = NULL;
1323
        }
1324
    }
1325
22670
    h->sei.unregistered.nb_buf_ref = 0;
1326
1327
22670
    if (h->sei.picture_timing.timecode_cnt > 0) {
1328
        uint32_t *tc_sd;
1329
        char tcbuf[AV_TIMECODE_STR_SIZE];
1330
1331
651
        AVFrameSideData *tcside = av_frame_new_side_data(out,
1332
                                                         AV_FRAME_DATA_S12M_TIMECODE,
1333
                                                         sizeof(uint32_t)*4);
1334
651
        if (!tcside)
1335
            return AVERROR(ENOMEM);
1336
1337
651
        tc_sd = (uint32_t*)tcside->data;
1338
651
        tc_sd[0] = h->sei.picture_timing.timecode_cnt;
1339
1340
1603
        for (int i = 0; i < tc_sd[0]; i++) {
1341
952
            int drop = h->sei.picture_timing.timecode[i].dropframe;
1342
952
            int   hh = h->sei.picture_timing.timecode[i].hours;
1343
952
            int   mm = h->sei.picture_timing.timecode[i].minutes;
1344
952
            int   ss = h->sei.picture_timing.timecode[i].seconds;
1345
952
            int   ff = h->sei.picture_timing.timecode[i].frame;
1346
1347
952
            tc_sd[i + 1] = av_timecode_get_smpte(h->avctx->framerate, drop, hh, mm, ss, ff);
1348
952
            av_timecode_make_smpte_tc_string2(tcbuf, h->avctx->framerate, tc_sd[i + 1], 0, 0);
1349
952
            av_dict_set(&out->metadata, "timecode", tcbuf, 0);
1350
        }
1351
651
        h->sei.picture_timing.timecode_cnt = 0;
1352
    }
1353
1354
22670
    return 0;
1355
}
1356
1357
22670
static int h264_select_output_frame(H264Context *h)
1358
{
1359
22670
    const SPS *sps = h->ps.sps;
1360
22670
    H264Picture *out = h->cur_pic_ptr;
1361
22670
    H264Picture *cur = h->cur_pic_ptr;
1362
    int i, pics, out_of_order, out_idx;
1363
1364
22670
    cur->mmco_reset = h->mmco_reset;
1365
22670
    h->mmco_reset = 0;
1366
1367
22670
    if (sps->bitstream_restriction_flag ||
1368
19360
        h->avctx->strict_std_compliance >= FF_COMPLIANCE_STRICT) {
1369
3310
        h->avctx->has_b_frames = FFMAX(h->avctx->has_b_frames, sps->num_reorder_frames);
1370
    }
1371
1372
371103
    for (i = 0; 1; i++) {
1373

371103
        if(i == MAX_DELAYED_PIC_COUNT || cur->poc < h->last_pocs[i]){
1374
22670
            if(i)
1375
22670
                h->last_pocs[i-1] = cur->poc;
1376
22670
            break;
1377
348433
        } else if(i) {
1378
325763
            h->last_pocs[i-1]= h->last_pocs[i];
1379
        }
1380
    }
1381
22670
    out_of_order = MAX_DELAYED_PIC_COUNT - i;
1382
22670
    if(   cur->f->pict_type == AV_PICTURE_TYPE_B
1383

15227
       || (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))
1384
12018
        out_of_order = FFMAX(out_of_order, 1);
1385
22670
    if (out_of_order == MAX_DELAYED_PIC_COUNT) {
1386
        av_log(h->avctx, AV_LOG_VERBOSE, "Invalid POC %d<%d\n", cur->poc, h->last_pocs[0]);
1387
        for (i = 1; i < MAX_DELAYED_PIC_COUNT; i++)
1388
            h->last_pocs[i] = INT_MIN;
1389
        h->last_pocs[0] = cur->poc;
1390
        cur->mmco_reset = 1;
1391

22670
    } else if(h->avctx->has_b_frames < out_of_order && !sps->bitstream_restriction_flag){
1392
131
        int loglevel = h->avctx->frame_number > 1 ? AV_LOG_WARNING : AV_LOG_VERBOSE;
1393
131
        av_log(h->avctx, loglevel, "Increasing reorder buffer to %d\n", out_of_order);
1394
131
        h->avctx->has_b_frames = out_of_order;
1395
    }
1396
1397
22670
    pics = 0;
1398
51510
    while (h->delayed_pic[pics])
1399
28840
        pics++;
1400
1401
22670
    av_assert0(pics <= MAX_DELAYED_PIC_COUNT);
1402
1403
22670
    h->delayed_pic[pics++] = cur;
1404
22670
    if (cur->reference == 0)
1405
21260
        cur->reference = DELAYED_PIC_REF;
1406
1407
22670
    out     = h->delayed_pic[0];
1408
22670
    out_idx = 0;
1409
48615
    for (i = 1; h->delayed_pic[i] &&
1410
26391
                !h->delayed_pic[i]->f->key_frame &&
1411
26032
                !h->delayed_pic[i]->mmco_reset;
1412
25945
         i++)
1413
25945
        if (h->delayed_pic[i]->poc < out->poc) {
1414
9615
            out     = h->delayed_pic[i];
1415
9615
            out_idx = i;
1416
        }
1417
22670
    if (h->avctx->has_b_frames == 0 &&
1418

9631
        (h->delayed_pic[0]->f->key_frame || h->delayed_pic[0]->mmco_reset))
1419
779
        h->next_outputed_poc = INT_MIN;
1420
22670
    out_of_order = out->poc < h->next_outputed_poc;
1421
1422

22670
    if (out_of_order || pics > h->avctx->has_b_frames) {
1423
22204
        out->reference &= ~DELAYED_PIC_REF;
1424
58549
        for (i = out_idx; h->delayed_pic[i]; i++)
1425
36345
            h->delayed_pic[i] = h->delayed_pic[i + 1];
1426
    }
1427

22670
    if (!out_of_order && pics > h->avctx->has_b_frames) {
1428
22103
        h->next_output_pic = out;
1429


22103
        if (out_idx == 0 && h->delayed_pic[0] && (h->delayed_pic[0]->f->key_frame || h->delayed_pic[0]->mmco_reset)) {
1430
86
            h->next_outputed_poc = INT_MIN;
1431
        } else
1432
22017
            h->next_outputed_poc = out->poc;
1433
1434
22103
        if (out->recovered) {
1435
            // We have reached an recovery point and all frames after it in
1436
            // display order are "recovered".
1437
22028
            h->frame_recovered |= FRAME_RECOVERED_SEI;
1438
        }
1439
22103
        out->recovered |= !!(h->frame_recovered & FRAME_RECOVERED_SEI);
1440
1441
22103
        if (!out->recovered) {
1442
70
            if (!(h->avctx->flags & AV_CODEC_FLAG_OUTPUT_CORRUPT) &&
1443
70
                !(h->avctx->flags2 & AV_CODEC_FLAG2_SHOW_ALL)) {
1444
70
                h->next_output_pic = NULL;
1445
            } else {
1446
                out->f->flags |= AV_FRAME_FLAG_CORRUPT;
1447
            }
1448
        }
1449
    } else {
1450
567
        av_log(h->avctx, AV_LOG_DEBUG, "no picture %s\n", out_of_order ? "ooo" : "");
1451
    }
1452
1453
22670
    return 0;
1454
}
1455
1456
/* This function is called right after decoding the slice header for a first
1457
 * slice in a field (or a frame). It decides whether we are decoding a new frame
1458
 * or a second field in a pair and does the necessary setup.
1459
 */
1460
25907
static int h264_field_start(H264Context *h, const H264SliceContext *sl,
1461
                            const H2645NAL *nal, int first_slice)
1462
{
1463
    int i;
1464
    const SPS *sps;
1465
1466
    int last_pic_structure, last_pic_droppable, ret;
1467
1468
25907
    ret = h264_init_ps(h, sl, first_slice);
1469
25907
    if (ret < 0)
1470
        return ret;
1471
1472
25907
    sps = h->ps.sps;
1473
1474

25907
    if (sps && sps->bitstream_restriction_flag &&
1475
3642
        h->avctx->has_b_frames < sps->num_reorder_frames) {
1476
20
        h->avctx->has_b_frames = sps->num_reorder_frames;
1477
    }
1478
1479
25907
    last_pic_droppable   = h->droppable;
1480
25907
    last_pic_structure   = h->picture_structure;
1481
25907
    h->droppable         = (nal->ref_idc == 0);
1482
25907
    h->picture_structure = sl->picture_structure;
1483
1484
25907
    h->poc.frame_num        = sl->frame_num;
1485
25907
    h->poc.poc_lsb          = sl->poc_lsb;
1486
25907
    h->poc.delta_poc_bottom = sl->delta_poc_bottom;
1487
25907
    h->poc.delta_poc[0]     = sl->delta_poc[0];
1488
25907
    h->poc.delta_poc[1]     = sl->delta_poc[1];
1489
1490
    /* Shorten frame num gaps so we don't have to allocate reference
1491
     * frames just to throw them away */
1492
25907
    if (h->poc.frame_num != h->poc.prev_frame_num) {
1493
14588
        int unwrap_prev_frame_num = h->poc.prev_frame_num;
1494
14588
        int max_frame_num         = 1 << sps->log2_max_frame_num;
1495
1496
14588
        if (unwrap_prev_frame_num > h->poc.frame_num)
1497
145
            unwrap_prev_frame_num -= max_frame_num;
1498
1499
14588
        if ((h->poc.frame_num - unwrap_prev_frame_num) > sps->ref_frame_count) {
1500
66
            unwrap_prev_frame_num = (h->poc.frame_num - sps->ref_frame_count) - 1;
1501
66
            if (unwrap_prev_frame_num < 0)
1502
2
                unwrap_prev_frame_num += max_frame_num;
1503
1504
66
            h->poc.prev_frame_num = unwrap_prev_frame_num;
1505
        }
1506
    }
1507
1508
    /* See if we have a decoded first field looking for a pair...
1509
     * Here, we're using that to see if we should mark previously
1510
     * decode frames as "finished".
1511
     * We have to do that before the "dummy" in-between frame allocation,
1512
     * since that can modify h->cur_pic_ptr. */
1513
25907
    if (h->first_field) {
1514
3233
        int last_field = last_pic_structure == PICT_BOTTOM_FIELD;
1515
3233
        av_assert0(h->cur_pic_ptr);
1516
3233
        av_assert0(h->cur_pic_ptr->f->buf[0]);
1517
        assert(h->cur_pic_ptr->reference != DELAYED_PIC_REF);
1518
1519
        /* Mark old field/frame as completed */
1520
3233
        if (h->cur_pic_ptr->tf.owner[last_field] == h->avctx) {
1521
3233
            ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, last_field);
1522
        }
1523
1524
        /* figure out if we have a complementary field pair */
1525

3233
        if (!FIELD_PICTURE(h) || h->picture_structure == last_pic_structure) {
1526
            /* Previous field is unmatched. Don't display it, but let it
1527
             * remain for reference if marked as such. */
1528
            if (last_pic_structure != PICT_FRAME) {
1529
                ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX,
1530
                                          last_pic_structure == PICT_TOP_FIELD);
1531
            }
1532
        } else {
1533
3233
            if (h->cur_pic_ptr->frame_num != h->poc.frame_num) {
1534
                /* This and previous field were reference, but had
1535
                 * different frame_nums. Consider this field first in
1536
                 * pair. Throw away previous field except for reference
1537
                 * purposes. */
1538
                if (last_pic_structure != PICT_FRAME) {
1539
                    ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX,
1540
                                              last_pic_structure == PICT_TOP_FIELD);
1541
                }
1542
            } else {
1543
                /* Second field in complementary pair */
1544

3233
                if (!((last_pic_structure   == PICT_TOP_FIELD &&
1545
3225
                       h->picture_structure == PICT_BOTTOM_FIELD) ||
1546
8
                      (last_pic_structure   == PICT_BOTTOM_FIELD &&
1547
8
                       h->picture_structure == PICT_TOP_FIELD))) {
1548
                    av_log(h->avctx, AV_LOG_ERROR,
1549
                           "Invalid field mode combination %d/%d\n",
1550
                           last_pic_structure, h->picture_structure);
1551
                    h->picture_structure = last_pic_structure;
1552
                    h->droppable         = last_pic_droppable;
1553
                    return AVERROR_INVALIDDATA;
1554
3233
                } else if (last_pic_droppable != h->droppable) {
1555
                    avpriv_request_sample(h->avctx,
1556
                                          "Found reference and non-reference fields in the same frame, which");
1557
                    h->picture_structure = last_pic_structure;
1558
                    h->droppable         = last_pic_droppable;
1559
                    return AVERROR_PATCHWELCOME;
1560
                }
1561
            }
1562
        }
1563
    }
1564
1565

26579
    while (h->poc.frame_num != h->poc.prev_frame_num && !h->first_field &&
1566
15260
           h->poc.frame_num != (h->poc.prev_frame_num + 1) % (1 << sps->log2_max_frame_num)) {
1567
672
        H264Picture *prev = h->short_ref_count ? h->short_ref[0] : NULL;
1568
672
        av_log(h->avctx, AV_LOG_DEBUG, "Frame num gap %d %d\n",
1569
               h->poc.frame_num, h->poc.prev_frame_num);
1570
672
        if (!sps->gaps_in_frame_num_allowed_flag)
1571
1615
            for(i=0; i<FF_ARRAY_ELEMS(h->last_pocs); i++)
1572
1520
                h->last_pocs[i] = INT_MIN;
1573
672
        ret = h264_frame_start(h);
1574
672
        if (ret < 0) {
1575
            h->first_field = 0;
1576
            return ret;
1577
        }
1578
1579
672
        h->poc.prev_frame_num++;
1580
672
        h->poc.prev_frame_num        %= 1 << sps->log2_max_frame_num;
1581
672
        h->cur_pic_ptr->frame_num = h->poc.prev_frame_num;
1582
672
        h->cur_pic_ptr->invalid_gap = !sps->gaps_in_frame_num_allowed_flag;
1583
672
        ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, 0);
1584
672
        ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, 1);
1585
1586
672
        h->explicit_ref_marking = 0;
1587
672
        ret = ff_h264_execute_ref_pic_marking(h);
1588

672
        if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE))
1589
            return ret;
1590
        /* Error concealment: If a ref is missing, copy the previous ref
1591
         * in its place.
1592
         * FIXME: Avoiding a memcpy would be nice, but ref handling makes
1593
         * many assumptions about there being no actual duplicates.
1594
         * FIXME: This does not copy padding for out-of-frame motion
1595
         * vectors.  Given we are concealing a lost frame, this probably
1596
         * is not noticeable by comparison, but it should be fixed. */
1597
672
        if (h->short_ref_count) {
1598
672
            int c[4] = {
1599
672
                1<<(h->ps.sps->bit_depth_luma-1),
1600
672
                1<<(h->ps.sps->bit_depth_chroma-1),
1601
672
                1<<(h->ps.sps->bit_depth_chroma-1),
1602
                -1
1603
            };
1604
1605
672
            if (prev &&
1606
655
                h->short_ref[0]->f->width == prev->f->width &&
1607
655
                h->short_ref[0]->f->height == prev->f->height &&
1608
655
                h->short_ref[0]->f->format == prev->f->format) {
1609
655
                ff_thread_await_progress(&prev->tf, INT_MAX, 0);
1610
655
                if (prev->field_picture)
1611
14
                    ff_thread_await_progress(&prev->tf, INT_MAX, 1);
1612
655
                av_image_copy(h->short_ref[0]->f->data,
1613
655
                              h->short_ref[0]->f->linesize,
1614
655
                              (const uint8_t **)prev->f->data,
1615
655
                              prev->f->linesize,
1616
655
                              prev->f->format,
1617
655
                              prev->f->width,
1618
655
                              prev->f->height);
1619
655
                h->short_ref[0]->poc = prev->poc + 2;
1620

17
            } else if (!h->frame_recovered && !h->avctx->hwaccel)
1621
14
                ff_color_frame(h->short_ref[0]->f, c);
1622
672
            h->short_ref[0]->frame_num = h->poc.prev_frame_num;
1623
        }
1624
    }
1625
1626
    /* See if we have a decoded first field looking for a pair...
1627
     * We're using that to see whether to continue decoding in that
1628
     * frame, or to allocate a new one. */
1629
25907
    if (h->first_field) {
1630
3233
        av_assert0(h->cur_pic_ptr);
1631
3233
        av_assert0(h->cur_pic_ptr->f->buf[0]);
1632
        assert(h->cur_pic_ptr->reference != DELAYED_PIC_REF);
1633
1634
        /* figure out if we have a complementary field pair */
1635

3233
        if (!FIELD_PICTURE(h) || h->picture_structure == last_pic_structure) {
1636
            /* Previous field is unmatched. Don't display it, but let it
1637
             * remain for reference if marked as such. */
1638
            h->missing_fields ++;
1639
            h->cur_pic_ptr = NULL;
1640
            h->first_field = FIELD_PICTURE(h);
1641
        } else {
1642
3233
            h->missing_fields = 0;
1643
3233
            if (h->cur_pic_ptr->frame_num != h->poc.frame_num) {
1644
                ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX,
1645
                                          h->picture_structure==PICT_BOTTOM_FIELD);
1646
                /* This and the previous field had different frame_nums.
1647
                 * Consider this field first in pair. Throw away previous
1648
                 * one except for reference purposes. */
1649
                h->first_field = 1;
1650
                h->cur_pic_ptr = NULL;
1651
3233
            } else if (h->cur_pic_ptr->reference & DELAYED_PIC_REF) {
1652
                /* This frame was already output, we cannot draw into it
1653
                 * anymore.
1654
                 */
1655
                h->first_field = 1;
1656
                h->cur_pic_ptr = NULL;
1657
            } else {
1658
                /* Second field in complementary pair */
1659
3233
                h->first_field = 0;
1660
            }
1661
        }
1662
    } else {
1663
        /* Frame or first field in a potentially complementary pair */
1664
22674
        h->first_field = FIELD_PICTURE(h);
1665
    }
1666
1667

25907
    if (!FIELD_PICTURE(h) || h->first_field) {
1668
22674
        if (h264_frame_start(h) < 0) {
1669
            h->first_field = 0;
1670
            return AVERROR_INVALIDDATA;
1671
        }
1672
    } else {
1673
3233
        int field = h->picture_structure == PICT_BOTTOM_FIELD;
1674
3233
        release_unused_pictures(h, 0);
1675
3233
        h->cur_pic_ptr->tf.owner[field] = h->avctx;
1676
    }
1677
    /* Some macroblocks can be accessed before they're available in case
1678
    * of lost slices, MBAFF or threading. */
1679
25907
    if (FIELD_PICTURE(h)) {
1680
157329
        for(i = (h->picture_structure == PICT_BOTTOM_FIELD); i<h->mb_height; i++)
1681
150859
            memset(h->slice_table + i*h->mb_stride, -1, (h->mb_stride - (i+1==h->mb_height)) * sizeof(*h->slice_table));
1682
    } else {
1683
19437
        memset(h->slice_table, -1,
1684
19437
            (h->mb_height * h->mb_stride - 1) * sizeof(*h->slice_table));
1685
    }
1686
1687
25907
    ret = ff_h264_init_poc(h->cur_pic_ptr->field_poc, &h->cur_pic_ptr->poc,
1688
                     h->ps.sps, &h->poc, h->picture_structure, nal->ref_idc);
1689
25907
    if (ret < 0)
1690
        return ret;
1691
1692
25907
    memcpy(h->mmco, sl->mmco, sl->nb_mmco * sizeof(*h->mmco));
1693
25907
    h->nb_mmco = sl->nb_mmco;
1694
25907
    h->explicit_ref_marking = sl->explicit_ref_marking;
1695
1696
25907
    h->picture_idr = nal->type == H264_NAL_IDR_SLICE;
1697
1698
25907
    if (h->sei.recovery_point.recovery_frame_cnt >= 0) {
1699
46
        const int sei_recovery_frame_cnt = h->sei.recovery_point.recovery_frame_cnt;
1700
1701

46
        if (h->poc.frame_num != sei_recovery_frame_cnt || sl->slice_type_nos != AV_PICTURE_TYPE_I)
1702
33
            h->valid_recovery_point = 1;
1703
1704
46
        if (   h->recovery_frame < 0
1705
1
            || av_mod_uintp2(h->recovery_frame - h->poc.frame_num, h->ps.sps->log2_max_frame_num) > sei_recovery_frame_cnt) {
1706
45
            h->recovery_frame = av_mod_uintp2(h->poc.frame_num + sei_recovery_frame_cnt, h->ps.sps->log2_max_frame_num);
1707
1708
45
            if (!h->valid_recovery_point)
1709
6
                h->recovery_frame = h->poc.frame_num;
1710
        }
1711
    }
1712
1713
25907
    h->cur_pic_ptr->f->key_frame |= (nal->type == H264_NAL_IDR_SLICE);
1714
1715
25907
    if (nal->type == H264_NAL_IDR_SLICE ||
1716

24898
        (h->recovery_frame == h->poc.frame_num && nal->ref_idc)) {
1717
1042
        h->recovery_frame         = -1;
1718
1042
        h->cur_pic_ptr->recovered = 1;
1719
    }
1720
    // If we have an IDR, all frames after it in decoded order are
1721
    // "recovered".
1722
25907
    if (nal->type == H264_NAL_IDR_SLICE)
1723
1009
        h->frame_recovered |= FRAME_RECOVERED_IDR;
1724
#if 1
1725
25907
    h->cur_pic_ptr->recovered |= h->frame_recovered;
1726
#else
1727
    h->cur_pic_ptr->recovered |= !!(h->frame_recovered & FRAME_RECOVERED_IDR);
1728
#endif
1729
1730
    /* Set the frame properties/side data. Only done for the second field in
1731
     * field coded frames, since some SEI information is present for each field
1732
     * and is merged by the SEI parsing code. */
1733

25907
    if (!FIELD_PICTURE(h) || !h->first_field || h->missing_fields > 1) {
1734
22670
        ret = h264_export_frame_props(h);
1735
22670
        if (ret < 0)
1736
            return ret;
1737
1738
22670
        ret = h264_select_output_frame(h);
1739
22670
        if (ret < 0)
1740
            return ret;
1741
    }
1742
1743
25907
    return 0;
1744
}
1745
1746
34469
static int h264_slice_header_parse(const H264Context *h, H264SliceContext *sl,
1747
                                   const H2645NAL *nal)
1748
{
1749
    const SPS *sps;
1750
    const PPS *pps;
1751
    int ret;
1752
    unsigned int slice_type, tmp, i;
1753
    int field_pic_flag, bottom_field_flag;
1754

34469
    int first_slice = sl == h->slice_ctx && !h->current_slice;
1755
    int picture_structure;
1756
1757
34469
    if (first_slice)
1758
26162
        av_assert0(!h->setup_finished);
1759
1760
34469
    sl->first_mb_addr = get_ue_golomb_long(&sl->gb);
1761
1762
34469
    slice_type = get_ue_golomb_31(&sl->gb);
1763
34469
    if (slice_type > 9) {
1764
        av_log(h->avctx, AV_LOG_ERROR,
1765
               "slice type %d too large at %d\n",
1766
               slice_type, sl->first_mb_addr);
1767
        return AVERROR_INVALIDDATA;
1768
    }
1769
34469
    if (slice_type > 4) {
1770
21744
        slice_type -= 5;
1771
21744
        sl->slice_type_fixed = 1;
1772
    } else
1773
12725
        sl->slice_type_fixed = 0;
1774
1775
34469
    slice_type         = ff_h264_golomb_to_pict_type[slice_type];
1776
34469
    sl->slice_type     = slice_type;
1777
34469
    sl->slice_type_nos = slice_type & 3;
1778
1779
34469
    if (nal->type  == H264_NAL_IDR_SLICE &&
1780
2073
        sl->slice_type_nos != AV_PICTURE_TYPE_I) {
1781
        av_log(h->avctx, AV_LOG_ERROR, "A non-intra slice in an IDR NAL unit.\n");
1782
        return AVERROR_INVALIDDATA;
1783
    }
1784
1785
34469
    sl->pps_id = get_ue_golomb(&sl->gb);
1786
34469
    if (sl->pps_id >= MAX_PPS_COUNT) {
1787
        av_log(h->avctx, AV_LOG_ERROR, "pps_id %u out of range\n", sl->pps_id);
1788
        return AVERROR_INVALIDDATA;
1789
    }
1790
34469
    if (!h->ps.pps_list[sl->pps_id]) {
1791
377
        av_log(h->avctx, AV_LOG_ERROR,
1792
               "non-existing PPS %u referenced\n",
1793
               sl->pps_id);
1794
377
        return AVERROR_INVALIDDATA;
1795
    }
1796
34092
    pps = (const PPS*)h->ps.pps_list[sl->pps_id]->data;
1797
34092
    sps = pps->sps;
1798
1799
34092
    sl->frame_num = get_bits(&sl->gb, sps->log2_max_frame_num);
1800
34092
    if (!first_slice) {
1801
8298
        if (h->poc.frame_num != sl->frame_num) {
1802
            av_log(h->avctx, AV_LOG_ERROR, "Frame num change from %d to %d\n",
1803
                   h->poc.frame_num, sl->frame_num);
1804
            return AVERROR_INVALIDDATA;
1805
        }
1806
    }
1807
1808
34092
    sl->mb_mbaff       = 0;
1809
1810
34092
    if (sps->frame_mbs_only_flag) {
1811
20350
        picture_structure = PICT_FRAME;
1812
    } else {
1813

13742
        if (!sps->direct_8x8_inference_flag && slice_type == AV_PICTURE_TYPE_B) {
1814
            av_log(h->avctx, AV_LOG_ERROR, "This stream was generated by a broken encoder, invalid 8x8 inference\n");
1815
            return -1;
1816
        }
1817
13742
        field_pic_flag = get_bits1(&sl->gb);
1818
13742
        if (field_pic_flag) {
1819
8477
            bottom_field_flag = get_bits1(&sl->gb);
1820
8477
            picture_structure = PICT_TOP_FIELD + bottom_field_flag;
1821
        } else {
1822
5265
            picture_structure = PICT_FRAME;
1823
        }
1824
    }
1825
34092
    sl->picture_structure      = picture_structure;
1826
34092
    sl->mb_field_decoding_flag = picture_structure != PICT_FRAME;
1827
1828
34092
    if (picture_structure == PICT_FRAME) {
1829
25615
        sl->curr_pic_num = sl->frame_num;
1830
25615
        sl->max_pic_num  = 1 << sps->log2_max_frame_num;
1831
    } else {
1832
8477
        sl->curr_pic_num = 2 * sl->frame_num + 1;
1833
8477
        sl->max_pic_num  = 1 << (sps->log2_max_frame_num + 1);
1834
    }
1835
1836
34092
    if (nal->type == H264_NAL_IDR_SLICE)
1837
2068
        get_ue_golomb_long(&sl->gb); /* idr_pic_id */
1838
1839
34092
    if (sps->poc_type == 0) {
1840
26924
        sl->poc_lsb = get_bits(&sl->gb, sps->log2_max_poc_lsb);
1841
1842

26924
        if (pps->pic_order_present == 1 && picture_structure == PICT_FRAME)
1843
5830
            sl->delta_poc_bottom = get_se_golomb(&sl->gb);
1844
    }
1845
1846

34092
    if (sps->poc_type == 1 && !sps->delta_pic_order_always_zero_flag) {
1847
2848
        sl->delta_poc[0] = get_se_golomb(&sl->gb);
1848
1849

2848
        if (pps->pic_order_present == 1 && picture_structure == PICT_FRAME)
1850
453
            sl->delta_poc[1] = get_se_golomb(&sl->gb);
1851
    }
1852
1853
34092
    sl->redundant_pic_count = 0;
1854
34092
    if (pps->redundant_pic_cnt_present)
1855
        sl->redundant_pic_count = get_ue_golomb(&sl->gb);
1856
1857
34092
    if (sl->slice_type_nos == AV_PICTURE_TYPE_B)
1858
11927
        sl->direct_spatial_mv_pred = get_bits1(&sl->gb);
1859
1860
34092
    ret = ff_h264_parse_ref_count(&sl->list_count, sl->ref_count,
1861
                                  &sl->gb, pps, sl->slice_type_nos,
1862
34092
                                  picture_structure, h->avctx);
1863
34092
    if (ret < 0)
1864
        return ret;
1865
1866
34092
    if (sl->slice_type_nos != AV_PICTURE_TYPE_I) {
1867
29872
       ret = ff_h264_decode_ref_pic_list_reordering(sl, h->avctx);
1868
29872
       if (ret < 0) {
1869
           sl->ref_count[1] = sl->ref_count[0] = 0;
1870
           return ret;
1871
       }
1872
    }
1873
1874
34092
    sl->pwt.use_weight = 0;
1875
102276
    for (i = 0; i < 2; i++) {
1876
68184
        sl->pwt.luma_weight_flag[i]   = 0;
1877
68184
        sl->pwt.chroma_weight_flag[i] = 0;
1878
    }
1879

34092
    if ((pps->weighted_pred && sl->slice_type_nos == AV_PICTURE_TYPE_P) ||
1880
32772
        (pps->weighted_bipred_idc == 1 &&
1881
278
         sl->slice_type_nos == AV_PICTURE_TYPE_B)) {
1882
1598
        ret = ff_h264_pred_weight_table(&sl->gb, sps, sl->ref_count,
1883
                                  sl->slice_type_nos, &sl->pwt,
1884
1598
                                  picture_structure, h->avctx);
1885
1598
        if (ret < 0)
1886
            return ret;
1887
    }
1888
1889
34092
    sl->explicit_ref_marking = 0;
1890
34092
    if (nal->ref_idc) {
1891
22747
        ret = ff_h264_decode_ref_pic_marking(sl, &sl->gb, nal, h->avctx);
1892

22747
        if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE))
1893
            return AVERROR_INVALIDDATA;
1894
    }
1895
1896

34092
    if (sl->slice_type_nos != AV_PICTURE_TYPE_I && pps->cabac) {
1897
15727
        tmp = get_ue_golomb_31(&sl->gb);
1898
15727
        if (tmp > 2) {
1899
            av_log(h->avctx, AV_LOG_ERROR, "cabac_init_idc %u overflow\n", tmp);
1900
            return AVERROR_INVALIDDATA;
1901
        }
1902
15727
        sl->cabac_init_idc = tmp;
1903
    }
1904
1905
34092
    sl->last_qscale_diff = 0;
1906
34092
    tmp = pps->init_qp + (unsigned)get_se_golomb(&sl->gb);
1907
34092
    if (tmp > 51 + 6 * (sps->bit_depth_luma - 8)) {
1908
        av_log(h->avctx, AV_LOG_ERROR, "QP %u out of range\n", tmp);
1909
        return AVERROR_INVALIDDATA;
1910
    }
1911
34092
    sl->qscale       = tmp;
1912
34092
    sl->chroma_qp[0] = get_chroma_qp(pps, 0, sl->qscale);
1913
34092
    sl->chroma_qp[1] = get_chroma_qp(pps, 1, sl->qscale);
1914
    // FIXME qscale / qp ... stuff
1915
34092
    if (sl->slice_type == AV_PICTURE_TYPE_SP)
1916
        get_bits1(&sl->gb); /* sp_for_switch_flag */
1917
34092
    if (sl->slice_type == AV_PICTURE_TYPE_SP ||
1918
34092
        sl->slice_type == AV_PICTURE_TYPE_SI)
1919
        get_se_golomb(&sl->gb); /* slice_qs_delta */
1920
1921
34092
    sl->deblocking_filter     = 1;
1922
34092
    sl->slice_alpha_c0_offset = 0;
1923
34092
    sl->slice_beta_offset     = 0;
1924
34092
    if (pps->deblocking_filter_parameters_present) {
1925
19835
        tmp = get_ue_golomb_31(&sl->gb);
1926
19835
        if (tmp > 2) {
1927
            av_log(h->avctx, AV_LOG_ERROR,
1928
                   "deblocking_filter_idc %u out of range\n", tmp);
1929
            return AVERROR_INVALIDDATA;
1930
        }
1931
19835
        sl->deblocking_filter = tmp;
1932
19835
        if (sl->deblocking_filter < 2)
1933
17334
            sl->deblocking_filter ^= 1;  // 1<->0
1934
1935
19835
        if (sl->deblocking_filter) {
1936
12900
            int slice_alpha_c0_offset_div2 = get_se_golomb(&sl->gb);
1937
12900
            int slice_beta_offset_div2     = get_se_golomb(&sl->gb);
1938

12900
            if (slice_alpha_c0_offset_div2 >  6 ||
1939
12900
                slice_alpha_c0_offset_div2 < -6 ||
1940
12900
                slice_beta_offset_div2 >  6     ||
1941
                slice_beta_offset_div2 < -6) {
1942
                av_log(h->avctx, AV_LOG_ERROR,
1943
                       "deblocking filter parameters %d %d out of range\n",
1944
                       slice_alpha_c0_offset_div2, slice_beta_offset_div2);
1945
                return AVERROR_INVALIDDATA;
1946
            }
1947
12900
            sl->slice_alpha_c0_offset = slice_alpha_c0_offset_div2 * 2;
1948
12900
            sl->slice_beta_offset     = slice_beta_offset_div2 * 2;
1949
        }
1950
    }
1951
1952
34092
    return 0;
1953
}
1954
1955
/* do all the per-slice initialization needed before we can start decoding the
1956
 * actual MBs */
1957
34012
static int h264_slice_init(H264Context *h, H264SliceContext *sl,
1958
                           const H2645NAL *nal)
1959
{
1960
34012
    int i, j, ret = 0;
1961
1962

34012
    if (h->picture_idr && nal->type != H264_NAL_IDR_SLICE) {
1963
        av_log(h->avctx, AV_LOG_ERROR, "Invalid mix of IDR and non-IDR slices\n");
1964
        return AVERROR_INVALIDDATA;
1965
    }
1966
1967
    av_assert1(h->mb_num == h->mb_width * h->mb_height);
1968

34012
    if (sl->first_mb_addr << FIELD_OR_MBAFF_PICTURE(h) >= h->mb_num ||
1969
34012
        sl->first_mb_addr >= h->mb_num) {
1970
        av_log(h->avctx, AV_LOG_ERROR, "first_mb_in_slice overflow\n");
1971
        return AVERROR_INVALIDDATA;
1972
    }
1973
34012
    sl->resync_mb_x = sl->mb_x =  sl->first_mb_addr % h->mb_width;
1974
68024
    sl->resync_mb_y = sl->mb_y = (sl->first_mb_addr / h->mb_width) <<
1975

34012
                                 FIELD_OR_MBAFF_PICTURE(h);
1976
34012
    if (h->picture_structure == PICT_BOTTOM_FIELD)
1977
4196
        sl->resync_mb_y = sl->mb_y = sl->mb_y + 1;
1978
    av_assert1(sl->mb_y < h->mb_height);
1979
1980
34012
    ret = ff_h264_build_ref_list(h, sl);
1981
34012
    if (ret < 0)
1982
        return ret;
1983
1984
34012
    if (h->ps.pps->weighted_bipred_idc == 2 &&
1985
2421
        sl->slice_type_nos == AV_PICTURE_TYPE_B) {
1986
1589
        implicit_weight_table(h, sl, -1);
1987
1589
        if (FRAME_MBAFF(h)) {
1988
855
            implicit_weight_table(h, sl, 0);
1989
855
            implicit_weight_table(h, sl, 1);
1990
        }
1991
    }
1992
1993

34012
    if (sl->slice_type_nos == AV_PICTURE_TYPE_B && !sl->direct_spatial_mv_pred)
1994
7703
        ff_h264_direct_dist_scale_factor(h, sl);
1995
34012
    if (!h->setup_finished)
1996
34012
        ff_h264_direct_ref_list_init(h, sl);
1997
1998
34012
    if (h->avctx->skip_loop_filter >= AVDISCARD_ALL ||
1999
34012
        (h->avctx->skip_loop_filter >= AVDISCARD_NONKEY &&
2000
         h->nal_unit_type != H264_NAL_IDR_SLICE) ||
2001
34012
        (h->avctx->skip_loop_filter >= AVDISCARD_NONINTRA &&
2002
         sl->slice_type_nos != AV_PICTURE_TYPE_I) ||
2003
34012
        (h->avctx->skip_loop_filter >= AVDISCARD_BIDIR  &&
2004
         sl->slice_type_nos == AV_PICTURE_TYPE_B) ||
2005
34012
        (h->avctx->skip_loop_filter >= AVDISCARD_NONREF &&
2006
         nal->ref_idc == 0))
2007
        sl->deblocking_filter = 0;
2008
2009

34012
    if (sl->deblocking_filter == 1 && h->nb_slice_ctx > 1) {
2010
        if (h->avctx->flags2 & AV_CODEC_FLAG2_FAST) {
2011
            /* Cheat slightly for speed:
2012
             * Do not bother to deblock across slices. */
2013
            sl->deblocking_filter = 2;
2014
        } else {
2015
            h->postpone_filter = 1;
2016
        }
2017
    }
2018
34012
    sl->qp_thresh = 15 -
2019
34012
                   FFMIN(sl->slice_alpha_c0_offset, sl->slice_beta_offset) -
2020
34012
                   FFMAX3(0,
2021
                          h->ps.pps->chroma_qp_index_offset[0],
2022
34012
                          h->ps.pps->chroma_qp_index_offset[1]) +
2023
34012
                   6 * (h->ps.sps->bit_depth_luma - 8);
2024
2025
34012
    sl->slice_num       = ++h->current_slice;
2026
2027
34012
    if (sl->slice_num)
2028
34012
        h->slice_row[(sl->slice_num-1)&(MAX_SLICES-1)]= sl->resync_mb_y;
2029
34012
    if (   h->slice_row[sl->slice_num&(MAX_SLICES-1)] + 3 >= sl->resync_mb_y
2030
31344
        && h->slice_row[sl->slice_num&(MAX_SLICES-1)] <= sl->resync_mb_y
2031
23531
        && sl->slice_num >= MAX_SLICES) {
2032
        //in case of ASO this check needs to be updated depending on how we decide to assign slice numbers in this case
2033
        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);
2034
    }
2035
2036
102036
    for (j = 0; j < 2; j++) {
2037
        int id_list[16];
2038
68024
        int *ref2frm = h->ref2frm[sl->slice_num & (MAX_SLICES - 1)][j];
2039
1156408
        for (i = 0; i < 16; i++) {
2040
1088384
            id_list[i] = 60;
2041

1088384
            if (j < sl->list_count && i < sl->ref_count[j] &&
2042
133852
                sl->ref_list[j][i].parent->f->buf[0]) {
2043
                int k;
2044
133852
                AVBuffer *buf = sl->ref_list[j][i].parent->f->buf[0]->buffer;
2045
461407
                for (k = 0; k < h->short_ref_count; k++)
2046
459458
                    if (h->short_ref[k]->f->buf[0]->buffer == buf) {
2047
131903
                        id_list[i] = k;
2048
131903
                        break;
2049
                    }
2050
143968
                for (k = 0; k < h->long_ref_count; k++)
2051

11870
                    if (h->long_ref[k] && h->long_ref[k]->f->buf[0]->buffer == buf) {
2052
1754
                        id_list[i] = h->short_ref_count + k;
2053
1754
                        break;
2054
                    }
2055
            }
2056
        }
2057
2058
68024
        ref2frm[0] =
2059
68024
        ref2frm[1] = -1;
2060
1156408
        for (i = 0; i < 16; i++)
2061
1088384
            ref2frm[i + 2] = 4 * id_list[i] + (sl->ref_list[j][i].reference & 3);
2062
68024
        ref2frm[18 + 0] =
2063
68024
        ref2frm[18 + 1] = -1;
2064
2244792
        for (i = 16; i < 48; i++)
2065
2176768
            ref2frm[i + 4] = 4 * id_list[(i - 16) >> 1] +
2066
2176768
                             (sl->ref_list[j][i].reference & 3);
2067
    }
2068
2069
34012
    if (h->avctx->debug & FF_DEBUG_PICT_INFO) {
2070
        av_log(h->avctx, AV_LOG_DEBUG,
2071
               "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",
2072
               sl->slice_num,
2073
               (h->picture_structure == PICT_FRAME ? "F" : h->picture_structure == PICT_TOP_FIELD ? "T" : "B"),
2074
               sl->mb_y * h->mb_width + sl->mb_x,
2075
               av_get_picture_type_char(sl->slice_type),
2076
               sl->slice_type_fixed ? " fix" : "",
2077
               nal->type == H264_NAL_IDR_SLICE ? " IDR" : "",
2078
               h->poc.frame_num,
2079
               h->cur_pic_ptr->field_poc[0],
2080
               h->cur_pic_ptr->field_poc[1],
2081
               sl->ref_count[0], sl->ref_count[1],
2082
               sl->qscale,
2083
               sl->deblocking_filter,
2084
               sl->slice_alpha_c0_offset, sl->slice_beta_offset,
2085
               sl->pwt.use_weight,
2086
               sl->pwt.use_weight == 1 && sl->pwt.use_weight_chroma ? "c" : "",
2087
               sl->slice_type == AV_PICTURE_TYPE_B ? (sl->direct_spatial_mv_pred ? "SPAT" : "TEMP") : "");
2088
    }
2089
2090
34012
    return 0;
2091
}
2092
2093
34469
int ff_h264_queue_decode_slice(H264Context *h, const H2645NAL *nal)
2094
{
2095
34469
    H264SliceContext *sl = h->slice_ctx + h->nb_slice_ctx_queued;
2096

34469
    int first_slice = sl == h->slice_ctx && !h->current_slice;
2097
    int ret;
2098
2099
34469
    sl->gb = nal->gb;
2100
2101
34469
    ret = h264_slice_header_parse(h, sl, nal);
2102
34469
    if (ret < 0)
2103
377
        return ret;
2104
2105
    // discard redundant pictures
2106
34092
    if (sl->redundant_pic_count > 0) {
2107
        sl->ref_count[0] = sl->ref_count[1] = 0;
2108
        return 0;
2109
    }
2110
2111

34092
    if (sl->first_mb_addr == 0 || !h->current_slice) {
2112
25987
        if (h->setup_finished) {
2113
            av_log(h->avctx, AV_LOG_ERROR, "Too many fields\n");
2114
            return AVERROR_INVALIDDATA;
2115
        }
2116
    }
2117
2118
34092
    if (sl->first_mb_addr == 0) { // FIXME better field boundary detection
2119
25987
        if (h->current_slice) {
2120
            // this slice starts a new field
2121
            // first decode any pending queued slices
2122
193
            if (h->nb_slice_ctx_queued) {
2123
                H264SliceContext tmp_ctx;
2124
2125
                ret = ff_h264_execute_decode_slices(h);
2126
                if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE))
2127
                    return ret;
2128
2129
                memcpy(&tmp_ctx, h->slice_ctx, sizeof(tmp_ctx));
2130
                memcpy(h->slice_ctx, sl, sizeof(tmp_ctx));
2131
                memcpy(sl, &tmp_ctx, sizeof(tmp_ctx));
2132
                sl = h->slice_ctx;
2133
            }
2134
2135

193
            if (h->cur_pic_ptr && FIELD_PICTURE(h) && h->first_field) {
2136
193
                ret = ff_h264_field_end(h, h->slice_ctx, 1);
2137
193
                if (ret < 0)
2138
                    return ret;
2139
            } else if (h->cur_pic_ptr && !FIELD_PICTURE(h) && !h->first_field && h->nal_unit_type  == H264_NAL_IDR_SLICE) {
2140
                av_log(h, AV_LOG_WARNING, "Broken frame packetizing\n");
2141
                ret = ff_h264_field_end(h, h->slice_ctx, 1);
2142
                ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, 0);
2143
                ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, 1);
2144
                h->cur_pic_ptr = NULL;
2145
                if (ret < 0)
2146
                    return ret;
2147
            } else
2148
                return AVERROR_INVALIDDATA;
2149
        }
2150
2151
25987
        if (!h->first_field) {
2152

22754
            if (h->cur_pic_ptr && !h->droppable) {
2153
299
                ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX,
2154
299
                                          h->picture_structure == PICT_BOTTOM_FIELD);
2155
            }
2156
22754
            h->cur_pic_ptr = NULL;
2157
        }
2158
    }
2159
2160
34092
    if (!h->current_slice)
2161
25987
        av_assert0(sl == h->slice_ctx);
2162
2163

34092
    if (h->current_slice == 0 && !h->first_field) {
2164
22754
        if (
2165

22754
            (h->avctx->skip_frame >= AVDISCARD_NONREF && !h->nal_ref_idc) ||
2166

22754
            (h->avctx->skip_frame >= AVDISCARD_BIDIR  && sl->slice_type_nos == AV_PICTURE_TYPE_B) ||
2167

22710
            (h->avctx->skip_frame >= AVDISCARD_NONINTRA && sl->slice_type_nos != AV_PICTURE_TYPE_I) ||
2168

22674
            (h->avctx->skip_frame >= AVDISCARD_NONKEY && h->nal_unit_type != H264_NAL_IDR_SLICE && h->sei.recovery_point.recovery_frame_cnt < 0) ||
2169
22674
            h->avctx->skip_frame >= AVDISCARD_ALL) {
2170
80
            return 0;
2171
        }
2172
    }
2173
2174
34012
    if (!first_slice) {
2175
8298
        const PPS *pps = (const PPS*)h->ps.pps_list[sl->pps_id]->data;
2176
2177
8298
        if (h->ps.pps->sps_id != pps->sps_id ||
2178
8298
            h->ps.pps->transform_8x8_mode != pps->transform_8x8_mode /*||
2179
            (h->setup_finished && h->ps.pps != pps)*/) {
2180
            av_log(h->avctx, AV_LOG_ERROR, "PPS changed between slices\n");
2181
            return AVERROR_INVALIDDATA;
2182
        }
2183
8298
        if (h->ps.sps != pps->sps) {
2184
            av_log(h->avctx, AV_LOG_ERROR,
2185
               "SPS changed in the middle of the frame\n");
2186
            return AVERROR_INVALIDDATA;
2187
        }
2188
    }
2189
2190
34012
    if (h->current_slice == 0) {
2191
25907
        ret = h264_field_start(h, sl, nal, first_slice);
2192
25907
        if (ret < 0)
2193
            return ret;
2194
    } else {
2195
8105
        if (h->picture_structure != sl->picture_structure ||
2196
8105
            h->droppable         != (nal->ref_idc == 0)) {
2197
            av_log(h->avctx, AV_LOG_ERROR,
2198
                   "Changing field mode (%d -> %d) between slices is not allowed\n",
2199
                   h->picture_structure, sl->picture_structure);
2200
            return AVERROR_INVALIDDATA;
2201
8105
        } else if (!h->cur_pic_ptr) {
2202
            av_log(h->avctx, AV_LOG_ERROR,
2203
                   "unset cur_pic_ptr on slice %d\n",
2204
                   h->current_slice + 1);
2205
            return AVERROR_INVALIDDATA;
2206
        }
2207
    }
2208
2209
34012
    ret = h264_slice_init(h, sl, nal);
2210
34012
    if (ret < 0)
2211
        return ret;
2212
2213
34012
    h->nb_slice_ctx_queued++;
2214
2215
34012
    return 0;
2216
}
2217
2218
int ff_h264_get_slice_type(const H264SliceContext *sl)
2219
{
2220
    switch (sl->slice_type) {
2221
    case AV_PICTURE_TYPE_P:
2222
        return 0;
2223
    case AV_PICTURE_TYPE_B:
2224
        return 1;
2225
    case AV_PICTURE_TYPE_I:
2226
        return 2;
2227
    case AV_PICTURE_TYPE_SP:
2228
        return 3;
2229
    case AV_PICTURE_TYPE_SI:
2230
        return 4;
2231
    default:
2232
        return AVERROR_INVALIDDATA;
2233
    }
2234
}
2235
2236
10674266
static av_always_inline void fill_filter_caches_inter(const H264Context *h,
2237
                                                      H264SliceContext *sl,
2238
                                                      int mb_type, int top_xy,
2239
                                                      int left_xy[LEFT_MBS],
2240
                                                      int top_type,
2241
                                                      int left_type[LEFT_MBS],
2242
                                                      int mb_xy, int list)
2243
{
2244
10674266
    int b_stride = h->b_stride;
2245
10674266
    int16_t(*mv_dst)[2] = &sl->mv_cache[list][scan8[0]];
2246
10674266
    int8_t *ref_cache   = &sl->ref_cache[list][scan8[0]];
2247

10674266
    if (IS_INTER(mb_type) || IS_DIRECT(mb_type)) {
2248
10674266
        if (USES_LIST(top_type, list)) {
2249
8459942
            const int b_xy  = h->mb2b_xy[top_xy] + 3 * b_stride;
2250
8459942
            const int b8_xy = 4 * top_xy + 2;
2251
8459942
            const int *ref2frm = &h->ref2frm[h->slice_table[top_xy] & (MAX_SLICES - 1)][list][(MB_MBAFF(sl) ? 20 : 2)];
2252
8459942
            AV_COPY128(mv_dst - 1 * 8, h->cur_pic.motion_val[list][b_xy + 0]);
2253
8459942
            ref_cache[0 - 1 * 8] =
2254
8459942
            ref_cache[1 - 1 * 8] = ref2frm[h->cur_pic.ref_index[list][b8_xy + 0]];
2255
8459942
            ref_cache[2 - 1 * 8] =
2256
8459942
            ref_cache[3 - 1 * 8] = ref2frm[h->cur_pic.ref_index[list][b8_xy + 1]];
2257
        } else {
2258
2214324
            AV_ZERO128(mv_dst - 1 * 8);
2259
2214324
            AV_WN32A(&ref_cache[0 - 1 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
2260
        }
2261
2262
10674266
        if (!IS_INTERLACED(mb_type ^ left_type[LTOP])) {
2263
10274679
            if (USES_LIST(left_type[LTOP], list)) {
2264
8489061
                const int b_xy  = h->mb2b_xy[left_xy[LTOP]] + 3;
2265
8489061
                const int b8_xy = 4 * left_xy[LTOP] + 1;
2266
8489061
                const int *ref2frm = &h->ref2frm[h->slice_table[left_xy[LTOP]] & (MAX_SLICES - 1)][list][(MB_MBAFF(sl) ? 20 : 2)];
2267
8489061
                AV_COPY32(mv_dst - 1 +  0, h->cur_pic.motion_val[list][b_xy + b_stride * 0]);
2268
8489061
                AV_COPY32(mv_dst - 1 +  8, h->cur_pic.motion_val[list][b_xy + b_stride * 1]);
2269
8489061
                AV_COPY32(mv_dst - 1 + 16, h->cur_pic.motion_val[list][b_xy + b_stride * 2]);
2270
8489061
                AV_COPY32(mv_dst - 1 + 24, h->cur_pic.motion_val[list][b_xy + b_stride * 3]);
2271
8489061
                ref_cache[-1 +  0] =
2272
8489061
                ref_cache[-1 +  8] = ref2frm[h->cur_pic.ref_index[list][b8_xy + 2 * 0]];
2273
8489061
                ref_cache[-1 + 16] =
2274
8489061
                ref_cache[-1 + 24] = ref2frm[h->cur_pic.ref_index[list][b8_xy + 2 * 1]];
2275
            } else {
2276
1785618
                AV_ZERO32(mv_dst - 1 +  0);
2277
1785618
                AV_ZERO32(mv_dst - 1 +  8);
2278
1785618
                AV_ZERO32(mv_dst - 1 + 16);
2279
1785618
                AV_ZERO32(mv_dst - 1 + 24);
2280
1785618
                ref_cache[-1 +  0] =
2281
1785618
                ref_cache[-1 +  8] =
2282
1785618
                ref_cache[-1 + 16] =
2283
1785618
                ref_cache[-1 + 24] = LIST_NOT_USED;
2284
            }
2285
        }
2286
    }
2287
2288
10674266
    if (!USES_LIST(mb_type, list)) {
2289
1236726
        fill_rectangle(mv_dst, 4, 4, 8, pack16to32(0, 0), 4);
2290
1236726
        AV_WN32A(&ref_cache[0 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
2291
1236726
        AV_WN32A(&ref_cache[1 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
2292
1236726
        AV_WN32A(&ref_cache[2 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
2293
1236726
        AV_WN32A(&ref_cache[3 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
2294
1236726
        return;
2295
    }
2296
2297
    {
2298
9437540
        int8_t *ref = &h->cur_pic.ref_index[list][4 * mb_xy];
2299
9437540
        const int *ref2frm = &h->ref2frm[sl->slice_num & (MAX_SLICES - 1)][list][(MB_MBAFF(sl) ? 20 : 2)];
2300
9437540
        uint32_t ref01 = (pack16to32(ref2frm[ref[0]], ref2frm[ref[1]]) & 0x00FF00FF) * 0x0101;
2301
9437540
        uint32_t ref23 = (pack16to32(ref2frm[ref[2]], ref2frm[ref[3]]) & 0x00FF00FF) * 0x0101;
2302
9437540
        AV_WN32A(&ref_cache[0 * 8], ref01);
2303
9437540
        AV_WN32A(&ref_cache[1 * 8], ref01);
2304
9437540
        AV_WN32A(&ref_cache[2 * 8], ref23);
2305
9437540
        AV_WN32A(&ref_cache[3 * 8], ref23);
2306
    }
2307
2308
    {
2309
9437540
        int16_t(*mv_src)[2] = &h->cur_pic.motion_val[list][4 * sl->mb_x + 4 * sl->mb_y * b_stride];
2310
9437540
        AV_COPY128(mv_dst + 8 * 0, mv_src + 0 * b_stride);
2311
9437540
        AV_COPY128(mv_dst + 8 * 1, mv_src + 1 * b_stride);
2312
9437540
        AV_COPY128(mv_dst + 8 * 2, mv_src + 2 * b_stride);
2313
9437540
        AV_COPY128(mv_dst + 8 * 3, mv_src + 3 * b_stride);
2314
    }
2315
}
2316
2317
/**
2318
 * @return non zero if the loop filter can be skipped
2319
 */
2320
10756383
static int fill_filter_caches(const H264Context *h, H264SliceContext *sl, int mb_type)
2321
{
2322
10756383
    const int mb_xy = sl->mb_xy;
2323
    int top_xy, left_xy[LEFT_MBS];
2324
    int top_type, left_type[LEFT_MBS];
2325
    uint8_t *nnz;
2326
    uint8_t *nnz_cache;
2327
2328
10756383
    top_xy = mb_xy - (h->mb_stride << MB_FIELD(sl));
2329
2330
10756383
    left_xy[LBOT] = left_xy[LTOP] = mb_xy - 1;
2331
10756383
    if (FRAME_MBAFF(h)) {
2332
1814136
        const int left_mb_field_flag = IS_INTERLACED(h->cur_pic.mb_type[mb_xy - 1]);
2333
1814136
        const int curr_mb_field_flag = IS_INTERLACED(mb_type);
2334
1814136
        if (sl->mb_y & 1) {
2335
907068
            if (left_mb_field_flag != curr_mb_field_flag)
2336
189266
                left_xy[LTOP] -= h->mb_stride;
2337
        } else {
2338
907068
            if (curr_mb_field_flag)
2339
241257
                top_xy += h->mb_stride &
2340
241257
                          (((h->cur_pic.mb_type[top_xy] >> 7) & 1) - 1);
2341
907068
            if (left_mb_field_flag != curr_mb_field_flag)
2342
189266
                left_xy[LBOT] += h->mb_stride;
2343
        }
2344
    }
2345
2346
10756383
    sl->top_mb_xy        = top_xy;
2347
10756383
    sl->left_mb_xy[LTOP] = left_xy[LTOP];
2348
10756383
    sl->left_mb_xy[LBOT] = left_xy[LBOT];
2349
    {
2350
        /* For sufficiently low qp, filtering wouldn't do anything.
2351
         * This is a conservative estimate: could also check beta_offset
2352
         * and more accurate chroma_qp. */
2353
10756383
        int qp_thresh = sl->qp_thresh; // FIXME strictly we should store qp_thresh for each mb of a slice
2354
10756383
        int qp        = h->cur_pic.qscale_table[mb_xy];
2355
10756383
        if (qp <= qp_thresh &&
2356
992896
            (left_xy[LTOP] < 0 ||
2357

992896
             ((qp + h->cur_pic.qscale_table[left_xy[LTOP]] + 1) >> 1) <= qp_thresh) &&
2358
889380
            (top_xy < 0 ||
2359
889380
             ((qp + h->cur_pic.qscale_table[top_xy] + 1) >> 1) <= qp_thresh)) {
2360
861760
            if (!FRAME_MBAFF(h))
2361
639315
                return 1;
2362
222445
            if ((left_xy[LTOP] < 0 ||
2363
222351
                 ((qp + h->cur_pic.qscale_table[left_xy[LBOT]] + 1) >> 1) <= qp_thresh) &&
2364
222040
                (top_xy < h->mb_stride ||
2365
207469
                 ((qp + h->cur_pic.qscale_table[top_xy - h->mb_stride] + 1) >> 1) <= qp_thresh))
2366
205646
                return 1;
2367
        }
2368
    }
2369
2370
9911422
    top_type        = h->cur_pic.mb_type[top_xy];
2371
9911422
    left_type[LTOP] = h->cur_pic.mb_type[left_xy[LTOP]];
2372
9911422
    left_type[LBOT] = h->cur_pic.mb_type[left_xy[LBOT]];
2373
9911422
    if (sl->deblocking_filter == 2) {
2374
470376
        if (h->slice_table[top_xy] != sl->slice_num)
2375
56878
            top_type = 0;
2376
470376
        if (h->slice_table[left_xy[LBOT]] != sl->slice_num)
2377
13874
            left_type[LTOP] = left_type[LBOT] = 0;
2378
    } else {
2379
9441046
        if (h->slice_table[top_xy] == 0xFFFF)
2380
450225
            top_type = 0;
2381
9441046
        if (h->slice_table[left_xy[LBOT]] == 0xFFFF)
2382
289514
            left_type[LTOP] = left_type[LBOT] = 0;
2383
    }
2384
9911422
    sl->top_type        = top_type;
2385
9911422
    sl->left_type[LTOP] = left_type[LTOP];
2386
9911422
    sl->left_type[LBOT] = left_type[LBOT];
2387
2388
9911422
    if (IS_INTRA(mb_type))
2389
2860763
        return 0;
2390
2391
7050659
    fill_filter_caches_inter(h, sl, mb_type, top_xy, left_xy,
2392
                             top_type, left_type, mb_xy, 0);
2393
7050659
    if (sl->list_count == 2)
2394
3623607
        fill_filter_caches_inter(h, sl, mb_type, top_xy, left_xy,
2395
                                 top_type, left_type, mb_xy, 1);
2396
2397
7050659
    nnz       = h->non_zero_count[mb_xy];
2398
7050659
    nnz_cache = sl->non_zero_count_cache;
2399
7050659
    AV_COPY32(&nnz_cache[4 + 8 * 1], &nnz[0]);
2400
7050659
    AV_COPY32(&nnz_cache[4 + 8 * 2], &nnz[4]);
2401
7050659
    AV_COPY32(&nnz_cache[4 + 8 * 3], &nnz[8]);
2402
7050659
    AV_COPY32(&nnz_cache[4 + 8 * 4], &nnz[12]);
2403
7050659
    sl->cbp = h->cbp_table[mb_xy];
2404
2405
7050659
    if (top_type) {
2406
6645482
        nnz = h->non_zero_count[top_xy];
2407
6645482
        AV_COPY32(&nnz_cache[4 + 8 * 0], &nnz[3 * 4]);
2408
    }
2409
2410
7050659
    if (left_type[LTOP]) {
2411
6802837
        nnz = h->non_zero_count[left_xy[LTOP]];
2412
6802837
        nnz_cache[3 + 8 * 1] = nnz[3 + 0 * 4];
2413
6802837
        nnz_cache[3 + 8 * 2] = nnz[3 + 1 * 4];
2414
6802837
        nnz_cache[3 + 8 * 3] = nnz[3 + 2 * 4];
2415
6802837
        nnz_cache[3 + 8 * 4] = nnz[3 + 3 * 4];
2416
    }
2417
2418
    /* CAVLC 8x8dct requires NNZ values for residual decoding that differ
2419
     * from what the loop filter needs */
2420

7050659
    if (!CABAC(h) && h->ps.pps->transform_8x8_mode) {
2421
246512
        if (IS_8x8DCT(top_type)) {
2422
107880
            nnz_cache[4 + 8 * 0] =
2423
107880
            nnz_cache[5 + 8 * 0] = (h->cbp_table[top_xy] & 0x4000) >> 12;
2424
107880
            nnz_cache[6 + 8 * 0] =
2425
107880
            nnz_cache[7 + 8 * 0] = (h->cbp_table[top_xy] & 0x8000) >> 12;
2426
        }
2427
246512
        if (IS_8x8DCT(left_type[LTOP])) {
2428
110456
            nnz_cache[3 + 8 * 1] =
2429
110456
            nnz_cache[3 + 8 * 2] = (h->cbp_table[left_xy[LTOP]] & 0x2000) >> 12; // FIXME check MBAFF
2430
        }
2431
246512
        if (IS_8x8DCT(left_type[LBOT])) {
2432
110556
            nnz_cache[3 + 8 * 3] =
2433
110556
            nnz_cache[3 + 8 * 4] = (h->cbp_table[left_xy[LBOT]] & 0x8000) >> 12; // FIXME check MBAFF
2434
        }
2435
2436
246512
        if (IS_8x8DCT(mb_type)) {
2437
104923
            nnz_cache[scan8[0]] =
2438
104923
            nnz_cache[scan8[1]] =
2439
104923
            nnz_cache[scan8[2]] =
2440
104923
            nnz_cache[scan8[3]] = (sl->cbp & 0x1000) >> 12;
2441
2442
104923
            nnz_cache[scan8[0 + 4]] =
2443
104923
            nnz_cache[scan8[1 + 4]] =
2444
104923
            nnz_cache[scan8[2 + 4]] =
2445
104923
            nnz_cache[scan8[3 + 4]] = (sl->cbp & 0x2000) >> 12;
2446
2447
104923
            nnz_cache[scan8[0 + 8]] =
2448
104923
            nnz_cache[scan8[1 + 8]] =
2449
104923
            nnz_cache[scan8[2 + 8]] =
2450
104923
            nnz_cache[scan8[3 + 8]] = (sl->cbp & 0x4000) >> 12;
2451
2452
104923
            nnz_cache[scan8[0 + 12]] =
2453
104923
            nnz_cache[scan8[1 + 12]] =
2454
104923
            nnz_cache[scan8[2 + 12]] =
2455
104923
            nnz_cache[scan8[3 + 12]] = (sl->cbp & 0x8000) >> 12;
2456
        }
2457
    }
2458
2459
7050659
    return 0;
2460
}
2461
2462
358726
static void loop_filter(const H264Context *h, H264SliceContext *sl, int start_x, int end_x)
2463
{
2464
    uint8_t *dest_y, *dest_cb, *dest_cr;
2465
    int linesize, uvlinesize, mb_x, mb_y;
2466
358726
    const int end_mb_y       = sl->mb_y + FRAME_MBAFF(h);
2467
358726
    const int old_slice_type = sl->slice_type;
2468
358726
    const int pixel_shift    = h->pixel_shift;
2469
358726
    const int block_h        = 16 >> h->chroma_y_shift;
2470
2471
358726
    if (h->postpone_filter)
2472
        return;
2473
2474
358726
    if (sl->deblocking_filter) {
2475
10138879
        for (mb_x = start_x; mb_x < end_x; mb_x++)
2476
20605698
            for (mb_y = end_mb_y - FRAME_MBAFF(h); mb_y <= end_mb_y; mb_y++) {
2477
                int mb_xy, mb_type;
2478
10756383
                mb_xy         = sl->mb_xy = mb_x + mb_y * h->mb_stride;
2479
10756383
                mb_type       = h->cur_pic.mb_type[mb_xy];
2480
2481
10756383
                if (FRAME_MBAFF(h))
2482
1814136
                    sl->mb_mbaff               =
2483
1814136
                    sl->mb_field_decoding_flag = !!IS_INTERLACED(mb_type);
2484
2485
10756383
                sl->mb_x = mb_x;
2486
10756383
                sl->mb_y = mb_y;
2487
10756383
                dest_y  = h->cur_pic.f->data[0] +
2488
10756383
                          ((mb_x << pixel_shift) + mb_y * sl->linesize) * 16;
2489
21512766
                dest_cb = h->cur_pic.f->data[1] +
2490
10756383
                          (mb_x << pixel_shift) * (8 << CHROMA444(h)) +
2491
10756383
                          mb_y * sl->uvlinesize * block_h;
2492
21512766
                dest_cr = h->cur_pic.f->data[2] +
2493
10756383
                          (mb_x << pixel_shift) * (8 << CHROMA444(h)) +
2494
10756383
                          mb_y * sl->uvlinesize * block_h;
2495
                // FIXME simplify above
2496
2497
10756383
                if (MB_FIELD(sl)) {
2498
3606552
                    linesize   = sl->mb_linesize   = sl->linesize   * 2;
2499
3606552
                    uvlinesize = sl->mb_uvlinesize = sl->uvlinesize * 2;
2500
3606552
                    if (mb_y & 1) { // FIXME move out of this function?
2501
1802577
                        dest_y  -= sl->linesize   * 15;
2502
1802577
                        dest_cb -= sl->uvlinesize * (block_h - 1);
2503
1802577
                        dest_cr -= sl->uvlinesize * (block_h - 1);
2504
                    }
2505
                } else {
2506
7149831
                    linesize   = sl->mb_linesize   = sl->linesize;
2507
7149831
                    uvlinesize = sl->mb_uvlinesize = sl->uvlinesize;
2508
                }
2509
10756383
                backup_mb_border(h, sl, dest_y, dest_cb, dest_cr, linesize,
2510
                                 uvlinesize, 0);
2511
10756383
                if (fill_filter_caches(h, sl, mb_type))
2512
844961
                    continue;
2513
9911422
                sl->chroma_qp[0] = get_chroma_qp(h->ps.pps, 0, h->cur_pic.qscale_table[mb_xy]);
2514
9911422
                sl->chroma_qp[1] = get_chroma_qp(h->ps.pps, 1, h->cur_pic.qscale_table[mb_xy]);
2515
2516
9911422
                if (FRAME_MBAFF(h)) {
2517
1608490
                    ff_h264_filter_mb(h, sl, mb_x, mb_y, dest_y, dest_cb, dest_cr,
2518
                                      linesize, uvlinesize);
2519
                } else {
2520
8302932
                    ff_h264_filter_mb_fast(h, sl, mb_x, mb_y, dest_y, dest_cb,
2521
                                           dest_cr, linesize, uvlinesize);
2522
                }
2523
            }
2524
    }
2525
358726
    sl->slice_type  = old_slice_type;
2526
358726
    sl->mb_x         = end_x;
2527
358726
    sl->mb_y         = end_mb_y - FRAME_MBAFF(h);
2528
358726
    sl->chroma_qp[0] = get_chroma_qp(h->ps.pps, 0, sl->qscale);
2529
358726
    sl->chroma_qp[1] = get_chroma_qp(h->ps.pps, 1, sl->qscale);
2530
}
2531
2532
22884
static void predict_field_decoding_flag(const H264Context *h, H264SliceContext *sl)
2533
{
2534
22884
    const int mb_xy = sl->mb_x + sl->mb_y * h->mb_stride;
2535
45768
    int mb_type     = (h->slice_table[mb_xy - 1] == sl->slice_num) ?
2536
45768
                      h->cur_pic.mb_type[mb_xy - 1] :
2537
22884
                      (h->slice_table[mb_xy - h->mb_stride] == sl->slice_num) ?
2538
22748
                      h->cur_pic.mb_type[mb_xy - h->mb_stride] : 0;
2539
22884
    sl->mb_mbaff    = sl->mb_field_decoding_flag = IS_INTERLACED(mb_type) ? 1 : 0;
2540
22884
}
2541
2542
/**
2543
 * Draw edges and report progress for the last MB row.
2544
 */
2545
354631
static void decode_finish_row(const H264Context *h, H264SliceContext *sl)
2546
{
2547
354631
    int top            = 16 * (sl->mb_y      >> FIELD_PICTURE(h));
2548
354631
    int pic_height     = 16 *  h->mb_height >> FIELD_PICTURE(h);
2549
354631
    int height         =  16      << FRAME_MBAFF(h);
2550
354631
    int deblock_border = (16 + 4) << FRAME_MBAFF(h);
2551
2552
354631
    if (sl->deblocking_filter) {
2553
286481
        if ((top + height) >= pic_height)
2554
20326
            height += deblock_border;
2555
286481
        top -= deblock_border;
2556
    }
2557
2558

354631
    if (top >= pic_height || (top + height) < 0)
2559
20327
        return;
2560
2561
334304
    height = FFMIN(height, pic_height - top);
2562
334304
    if (top < 0) {
2563
20327
        height = top + height;
2564
20327
        top    = 0;
2565
    }
2566
2567
334304
    ff_h264_draw_horiz_band(h, sl, top, height);
2568
2569

334304
    if (h->droppable || sl->h264->slice_ctx[0].er.error_occurred)
2570
119504
        return;
2571
2572
214800
    ff_thread_report_progress(&h->cur_pic_ptr->tf, top + height - 1,
2573
214800
                              h->picture_structure == PICT_BOTTOM_FIELD);
2574
}
2575
2576
34012
static void er_add_slice(H264SliceContext *sl,
2577
                         int startx, int starty,
2578
                         int endx, int endy, int status)
2579
{
2580
34012
    if (!sl->h264->enable_er)
2581
1200
        return;
2582
2583
    if (CONFIG_ERROR_RESILIENCE) {
2584
32812
        ERContext *er = &sl->h264->slice_ctx[0].er;
2585
2586
32812
        ff_er_add_slice(er, startx, starty, endx, endy, status);
2587
    }
2588
}
2589
2590
34012
static int decode_slice(struct AVCodecContext *avctx, void *arg)
2591
{
2592
34012
    H264SliceContext *sl = arg;
2593
34012
    const H264Context *h = sl->h264;
2594
34012
    int lf_x_start = sl->mb_x;
2595
34012
    int orig_deblock = sl->deblocking_filter;
2596
    int ret;
2597
2598
34012
    sl->linesize   = h->cur_pic_ptr->f->linesize[0];
2599
34012
    sl->uvlinesize = h->cur_pic_ptr->f->linesize[1];
2600
2601
34012
    ret = alloc_scratch_buffers(sl, sl->linesize);
2602
34012
    if (ret < 0)
2603
        return ret;
2604
2605
34012
    sl->mb_skip_run = -1;
2606
2607
34012
    av_assert0(h->block_offset[15] == (4 * ((scan8[15] - scan8[0]) & 7) << h->pixel_shift) + 4 * sl->linesize * ((scan8[15] - scan8[0]) >> 3));
2608
2609
34012
    if (h->postpone_filter)
2610
        sl->deblocking_filter = 0;
2611
2612

34012
    sl->is_complex = FRAME_MBAFF(h) || h->picture_structure != PICT_FRAME ||
2613
                     (CONFIG_GRAY && (h->flags & AV_CODEC_FLAG_GRAY));
2614
2615

34012
    if (!(h->avctx->active_thread_type & FF_THREAD_SLICE) && h->picture_structure == PICT_FRAME && h->slice_ctx[0].er.error_status_table) {
2616
24415
        const int start_i  = av_clip(sl->resync_mb_x + sl->resync_mb_y * h->mb_width, 0, h->mb_num - 1);
2617
24415
        if (start_i) {
2618
5278
            int prev_status = h->slice_ctx[0].er.error_status_table[h->slice_ctx[0].er.mb_index2xy[start_i - 1]];
2619
5278
            prev_status &= ~ VP_START;
2620
5278
            if (prev_status != (ER_MV_END | ER_DC_END | ER_AC_END))
2621
                h->slice_ctx[0].er.error_occurred = 1;
2622
        }
2623
    }
2624
2625
34012
    if (h->ps.pps->cabac) {
2626
        /* realign */
2627
18089
        align_get_bits(&sl->gb);
2628
2629
        /* init cabac */
2630
36178
        ret = ff_init_cabac_decoder(&sl->cabac,
2631
18089
                              sl->gb.buffer + get_bits_count(&sl->gb) / 8,
2632
18089
                              (get_bits_left(&sl->gb) + 7) / 8);
2633
18089
        if (ret < 0)
2634
            return ret;
2635
2636
18089
        ff_h264_init_cabac_states(h, sl);
2637
2638
7679670
        for (;;) {
2639
            int ret, eos;
2640
7697759
            if (sl->mb_x + sl->mb_y * h->mb_width >= sl->next_slice_idx) {
2641
                av_log(h->avctx, AV_LOG_ERROR, "Slice overlaps with next at %d\n",
2642
                       sl->next_slice_idx);
2643
                er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x,
2644
                             sl->mb_y, ER_MB_ERROR);
2645
                return AVERROR_INVALIDDATA;
2646
            }
2647
2648
7697759
            ret = ff_h264_decode_mb_cabac(h, sl);
2649
2650
7697759
            if (ret >= 0)
2651
7697758
                ff_h264_hl_decode_mb(h, sl);
2652
2653
            // FIXME optimal? or let mb_decode decode 16x32 ?
2654

7697759
            if (ret >= 0 && FRAME_MBAFF(h)) {
2655
798720
                sl->mb_y++;
2656
2657
798720
                ret = ff_h264_decode_mb_cabac(h, sl);
2658
2659
798720
                if (ret >= 0)
2660
798720
                    ff_h264_hl_decode_mb(h, sl);
2661
798720
                sl->mb_y--;
2662
            }
2663
7697759
            eos = get_cabac_terminate(&sl->cabac);
2664
2665
7697759
            if ((h->workaround_bugs & FF_BUG_TRUNCATED) &&
2666
                sl->cabac.bytestream > sl->cabac.bytestream_end + 2) {
2667
                er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x - 1,
2668
                             sl->mb_y, ER_MB_END);
2669
                if (sl->mb_x >= lf_x_start)
2670
                    loop_filter(h, sl, lf_x_start, sl->mb_x + 1);
2671
                goto finish;
2672
            }
2673
7697759
            if (sl->cabac.bytestream > sl->cabac.bytestream_end + 2 )
2674
1
                av_log(h->avctx, AV_LOG_DEBUG, "bytestream overread %"PTRDIFF_SPECIFIER"\n", sl->cabac.bytestream_end - sl->cabac.bytestream);
2675

7697759
            if (ret < 0 || sl->cabac.bytestream > sl->cabac.bytestream_end + 4) {
2676
2
                av_log(h->avctx, AV_LOG_ERROR,
2677
                       "error while decoding MB %d %d, bytestream %"PTRDIFF_SPECIFIER"\n",
2678
                       sl->mb_x, sl->mb_y,
2679
2
                       sl->cabac.bytestream_end - sl->cabac.bytestream);
2680
2
                er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x,
2681
                             sl->mb_y, ER_MB_ERROR);
2682
2
                return AVERROR_INVALIDDATA;
2683
            }
2684
2685
7697757
            if (++sl->mb_x >= h->mb_width) {
2686
202002
                loop_filter(h, sl, lf_x_start, sl->mb_x);
2687
202002
                sl->mb_x = lf_x_start = 0;
2688
202002
                decode_finish_row(h, sl);
2689
202002
                ++sl->mb_y;
2690

202002
                if (FIELD_OR_MBAFF_PICTURE(h)) {
2691
70062
                    ++sl->mb_y;
2692

70062
                    if (FRAME_MBAFF(h) && sl->mb_y < h->mb_height)
2693
17906
                        predict_field_decoding_flag(h, sl);
2694
                }
2695
            }
2696
2697

7697757
            if (eos || sl->mb_y >= h->mb_height) {
2698
                ff_tlog(h->avctx, "slice end %d %d\n",
2699
                        get_bits_count(&sl->gb), sl->gb.size_in_bits);
2700
18087
                er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x - 1,
2701
                             sl->mb_y, ER_MB_END);
2702
18087
                if (sl->mb_x > lf_x_start)
2703
1382
                    loop_filter(h, sl, lf_x_start, sl->mb_x);
2704
18087
                goto finish;
2705
            }
2706
        }
2707
    } else {
2708
4076548
        for (;;) {
2709
            int ret;
2710
2711
4092471
            if (sl->mb_x + sl->mb_y * h->mb_width >= sl->next_slice_idx) {
2712
                av_log(h->avctx, AV_LOG_ERROR, "Slice overlaps with next at %d\n",
2713
                       sl->next_slice_idx);
2714
                er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x,
2715
                             sl->mb_y, ER_MB_ERROR);
2716
                return AVERROR_INVALIDDATA;
2717
            }
2718
2719
4092471
            ret = ff_h264_decode_mb_cavlc(h, sl);
2720
2721
4092471
            if (ret >= 0)
2722
4092471
                ff_h264_hl_decode_mb(h, sl);
2723
2724
            // FIXME optimal? or let mb_decode decode 16x32 ?
2725

4092471
            if (ret >= 0 && FRAME_MBAFF(h)) {
2726
254472
                sl->mb_y++;
2727
254472
                ret = ff_h264_decode_mb_cavlc(h, sl);
2728
2729
254472
                if (ret >= 0)
2730
254472
                    ff_h264_hl_decode_mb(h, sl);
2731
254472
                sl->mb_y--;
2732
            }
2733
2734
4092471
            if (ret < 0) {
2735
                av_log(h->avctx, AV_LOG_ERROR,
2736
                       "error while decoding MB %d %d\n", sl->mb_x, sl->mb_y);
2737
                er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x,
2738
                             sl->mb_y, ER_MB_ERROR);
2739
                return ret;
2740
            }
2741
2742
4092471
            if (++sl->mb_x >= h->mb_width) {
2743
152629
                loop_filter(h, sl, lf_x_start, sl->mb_x);
2744
152629
                sl->mb_x = lf_x_start = 0;
2745
152629
                decode_finish_row(h, sl);
2746
152629
                ++sl->mb_y;
2747

152629
                if (FIELD_OR_MBAFF_PICTURE(h)) {
2748
32143
                    ++sl->mb_y;
2749

32143
                    if (FRAME_MBAFF(h) && sl->mb_y < h->mb_height)
2750
4978
                        predict_field_decoding_flag(h, sl);
2751
                }
2752
152629
                if (sl->mb_y >= h->mb_height) {
2753
                    ff_tlog(h->avctx, "slice end %d %d\n",
2754
                            get_bits_count(&sl->gb), sl->gb.size_in_bits);
2755
2756
12346
                    if (   get_bits_left(&sl->gb) == 0
2757
                        || get_bits_left(&sl->gb) > 0 && !(h->avctx->err_recognition & AV_EF_AGGRESSIVE)) {
2758
12346
                        er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y,
2759
12346
                                     sl->mb_x - 1, sl->mb_y, ER_MB_END);
2760
2761
12346
                        goto finish;
2762
                    } else {
2763
                        er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y,
2764
                                     sl->mb_x, sl->mb_y, ER_MB_END);
2765
2766
                        return AVERROR_INVALIDDATA;
2767
                    }
2768
                }
2769
            }
2770
2771

4080125
            if (get_bits_left(&sl->gb) <= 0 && sl->mb_skip_run <= 0) {
2772
                ff_tlog(h->avctx, "slice end %d %d\n",
2773
                        get_bits_count(&sl->gb), sl->gb.size_in_bits);
2774
2775
3577
                if (get_bits_left(&sl->gb) == 0) {
2776
3577
                    er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y,
2777
3577
                                 sl->mb_x - 1, sl->mb_y, ER_MB_END);
2778
3577
                    if (sl->mb_x > lf_x_start)
2779
2713
                        loop_filter(h, sl, lf_x_start, sl->mb_x);
2780
2781
3577
                    goto finish;
2782
                } else {
2783
                    er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x,
2784
                                 sl->mb_y, ER_MB_ERROR);
2785
2786
                    return AVERROR_INVALIDDATA;
2787
                }
2788
            }
2789
        }
2790
    }
2791
2792
34010
finish:
2793
34010
    sl->deblocking_filter = orig_deblock;
2794
34010
    return 0;
2795
}
2796
2797
/**
2798
 * Call decode_slice() for each context.
2799
 *
2800
 * @param h h264 master context
2801
 */
2802
60085
int ff_h264_execute_decode_slices(H264Context *h)
2803
{
2804
60085
    AVCodecContext *const avctx = h->avctx;
2805
    H264SliceContext *sl;
2806
60085
    int context_count = h->nb_slice_ctx_queued;
2807
60085
    int ret = 0;
2808
    int i, j;
2809
2810
60085
    h->slice_ctx[0].next_slice_idx = INT_MAX;
2811
2812

60085
    if (h->avctx->hwaccel || context_count < 1)
2813
26523
        return 0;
2814
2815

33562
    av_assert0(context_count && h->slice_ctx[context_count - 1].mb_y < h->mb_height);
2816
2817
33562
    if (context_count == 1) {
2818
2819
33112
        h->slice_ctx[0].next_slice_idx = h->mb_width * h->mb_height;
2820
33112
        h->postpone_filter = 0;
2821
2822
33112
        ret = decode_slice(avctx, &h->slice_ctx[0]);
2823
33112
        h->mb_y = h->slice_ctx[0].mb_y;
2824
33112
        if (ret < 0)
2825
2
            goto finish;
2826
    } else {
2827
450
        av_assert0(context_count > 0);
2828
1350
        for (i = 0; i < context_count; i++) {
2829
900
            int next_slice_idx = h->mb_width * h->mb_height;
2830
            int slice_idx;
2831
2832
900
            sl                 = &h->slice_ctx[i];
2833
            if (CONFIG_ERROR_RESILIENCE) {
2834
900
                sl->er.error_count = 0;
2835
            }
2836
2837
            /* make sure none of those slices overlap */
2838
900
            slice_idx = sl->mb_y * h->mb_width + sl->mb_x;
2839
2700
            for (j = 0; j < context_count; j++) {
2840
1800
                H264SliceContext *sl2 = &h->slice_ctx[j];
2841
1800
                int        slice_idx2 = sl2->mb_y * h->mb_width + sl2->mb_x;
2842
2843

1800
                if (i == j || slice_idx2 < slice_idx)
2844
1350
                    continue;
2845
450
                next_slice_idx = FFMIN(next_slice_idx, slice_idx2);
2846
            }
2847
900
            sl->next_slice_idx = next_slice_idx;
2848
        }
2849
2850
450
        avctx->execute(avctx, decode_slice, h->slice_ctx,
2851
                       NULL, context_count, sizeof(h->slice_ctx[0]));
2852
2853
        /* pull back stuff from slices to master context */
2854
450
        sl                   = &h->slice_ctx[context_count - 1];
2855
450
        h->mb_y              = sl->mb_y;
2856
        if (CONFIG_ERROR_RESILIENCE) {
2857
900
            for (i = 1; i < context_count; i++)
2858
450
                h->slice_ctx[0].er.error_count += h->slice_ctx[i].er.error_count;
2859
        }
2860
2861
450
        if (h->postpone_filter) {
2862
            h->postpone_filter = 0;
2863
2864
            for (i = 0; i < context_count; i++) {
2865
                int y_end, x_end;
2866
2867
                sl = &h->slice_ctx[i];
2868
                y_end = FFMIN(sl->mb_y + 1, h->mb_height);
2869
                x_end = (sl->mb_y >= h->mb_height) ? h->mb_width : sl->mb_x;
2870
2871
                for (j = sl->resync_mb_y; j < y_end; j += 1 + FIELD_OR_MBAFF_PICTURE(h)) {
2872
                    sl->mb_y = j;
2873
                    loop_filter(h, sl, j > sl->resync_mb_y ? 0 : sl->resync_mb_x,
2874
                                j == y_end - 1 ? x_end : h->mb_width);
2875
                }
2876
            }
2877
        }
2878
    }
2879
2880
450
finish:
2881
33562
    h->nb_slice_ctx_queued = 0;
2882
33562
    return ret;
2883
}