GCC Code Coverage Report
Directory: ../../../ffmpeg/ Exec Total Coverage
File: src/libavcodec/h264_slice.c Lines: 1366 1702 80.3 %
Date: 2020-07-06 08:56:25 Branches: 912 1283 71.1 %

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
    if (!h->cur_pic_ptr)
443
11
        return 0;
444
445
32
    if (!h->droppable) {
446
19
        err = ff_h264_execute_ref_pic_marking(h);
447
19
        h->poc.prev_poc_msb = h->poc.poc_msb;
448
19
        h->poc.prev_poc_lsb = h->poc.poc_lsb;
449
    }
450
32
    h->poc.prev_frame_num_offset = h->poc.frame_num_offset;
451
32
    h->poc.prev_frame_num        = h->poc.frame_num;
452
453
32
    h->recovery_frame        = h1->recovery_frame;
454
455
32
    return err;
456
}
457
458
23346
static int h264_frame_start(H264Context *h)
459
{
460
    H264Picture *pic;
461
    int i, ret;
462
23346
    const int pixel_shift = h->pixel_shift;
463
464
23346
    if (!ff_thread_can_start_frame(h->avctx)) {
465
        av_log(h->avctx, AV_LOG_ERROR, "Attempt to start a frame outside SETUP state\n");
466
        return -1;
467
    }
468
469
23346
    release_unused_pictures(h, 1);
470
23346
    h->cur_pic_ptr = NULL;
471
472
23346
    i = find_unused_picture(h);
473
23346
    if (i < 0) {
474
        av_log(h->avctx, AV_LOG_ERROR, "no frame buffer available\n");
475
        return i;
476
    }
477
23346
    pic = &h->DPB[i];
478
479
23346
    pic->reference              = h->droppable ? 0 : h->picture_structure;
480
23346
    pic->f->coded_picture_number = h->coded_picture_number++;
481
23346
    pic->field_picture          = h->picture_structure != PICT_FRAME;
482
23346
    pic->frame_num               = h->poc.frame_num;
483
    /*
484
     * Zero key_frame here; IDR markings per slice in frame or fields are ORed
485
     * in later.
486
     * See decode_nal_units().
487
     */
488
23346
    pic->f->key_frame = 0;
489
23346
    pic->mmco_reset  = 0;
490
23346
    pic->recovered   = 0;
491
23346
    pic->invalid_gap = 0;
492
23346
    pic->sei_recovery_frame_cnt = h->sei.recovery_point.recovery_frame_cnt;
493
494
23346
    pic->f->pict_type = h->slice_ctx[0].slice_type;
495
496
23346
    pic->f->crop_left   = h->crop_left;
497
23346
    pic->f->crop_right  = h->crop_right;
498
23346
    pic->f->crop_top    = h->crop_top;
499
23346
    pic->f->crop_bottom = h->crop_bottom;
500
501
23346
    if ((ret = alloc_picture(h, pic)) < 0)
502
        return ret;
503
504
23346
    h->cur_pic_ptr = pic;
505
23346
    ff_h264_unref_picture(h, &h->cur_pic);
506
    if (CONFIG_ERROR_RESILIENCE) {
507
23346
        ff_h264_set_erpic(&h->slice_ctx[0].er.cur_pic, NULL);
508
    }
509
510
23346
    if ((ret = ff_h264_ref_picture(h, &h->cur_pic, h->cur_pic_ptr)) < 0)
511
        return ret;
512
513
46992
    for (i = 0; i < h->nb_slice_ctx; i++) {
514
23646
        h->slice_ctx[i].linesize   = h->cur_pic_ptr->f->linesize[0];
515
23646
        h->slice_ctx[i].uvlinesize = h->cur_pic_ptr->f->linesize[1];
516
    }
517
518
23346
    if (CONFIG_ERROR_RESILIENCE && h->enable_er) {
519
23046
        ff_er_frame_start(&h->slice_ctx[0].er);
520
23046
        ff_h264_set_erpic(&h->slice_ctx[0].er.last_pic, NULL);
521
23046
        ff_h264_set_erpic(&h->slice_ctx[0].er.next_pic, NULL);
522
    }
523
524
396882
    for (i = 0; i < 16; i++) {
525
373536
        h->block_offset[i]           = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 4 * pic->f->linesize[0] * ((scan8[i] - scan8[0]) >> 3);
526
373536
        h->block_offset[48 + i]      = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 8 * pic->f->linesize[0] * ((scan8[i] - scan8[0]) >> 3);
527
    }
528
396882
    for (i = 0; i < 16; i++) {
529
373536
        h->block_offset[16 + i]      =
530
373536
        h->block_offset[32 + i]      = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 4 * pic->f->linesize[1] * ((scan8[i] - scan8[0]) >> 3);
531
373536
        h->block_offset[48 + 16 + i] =
532
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);
533
    }
534
535
    /* We mark the current picture as non-reference after allocating it, so
536
     * that if we break out due to an error it can be released automatically
537
     * in the next ff_mpv_frame_start().
538
     */
539
23346
    h->cur_pic_ptr->reference = 0;
540
541
23346
    h->cur_pic_ptr->field_poc[0] = h->cur_pic_ptr->field_poc[1] = INT_MAX;
542
543
23346
    h->next_output_pic = NULL;
544
545
23346
    h->postpone_filter = 0;
546
547

23346
    h->mb_aff_frame = h->ps.sps->mb_aff && (h->picture_structure == PICT_FRAME);
548
549
23346
    if (h->sei.unregistered.x264_build >= 0)
550
1796
        h->x264_build = h->sei.unregistered.x264_build;
551
552
    assert(h->cur_pic_ptr->long_ref == 0);
553
554
23346
    return 0;
555
}
556
557
10756383
static av_always_inline void backup_mb_border(const H264Context *h, H264SliceContext *sl,
558
                                              uint8_t *src_y,
559
                                              uint8_t *src_cb, uint8_t *src_cr,
560
                                              int linesize, int uvlinesize,
561
                                              int simple)
562
{
563
    uint8_t *top_border;
564
10756383
    int top_idx = 1;
565
10756383
    const int pixel_shift = h->pixel_shift;
566
10756383
    int chroma444 = CHROMA444(h);
567
10756383
    int chroma422 = CHROMA422(h);
568
569
10756383
    src_y  -= linesize;
570
10756383
    src_cb -= uvlinesize;
571
10756383
    src_cr -= uvlinesize;
572
573

10756383
    if (!simple && FRAME_MBAFF(h)) {
574
1814136
        if (sl->mb_y & 1) {
575
907068
            if (!MB_MBAFF(sl)) {
576
665811
                top_border = sl->top_borders[0][sl->mb_x];
577
665811
                AV_COPY128(top_border, src_y + 15 * linesize);
578
665811
                if (pixel_shift)
579
213139
                    AV_COPY128(top_border + 16, src_y + 15 * linesize + 16);
580
                if (simple || !CONFIG_GRAY || !(h->flags & AV_CODEC_FLAG_GRAY)) {
581
665811
                    if (chroma444) {
582
                        if (pixel_shift) {
583
                            AV_COPY128(top_border + 32, src_cb + 15 * uvlinesize);
584
                            AV_COPY128(top_border + 48, src_cb + 15 * uvlinesize + 16);
585
                            AV_COPY128(top_border + 64, src_cr + 15 * uvlinesize);
586
                            AV_COPY128(top_border + 80, src_cr + 15 * uvlinesize + 16);
587
                        } else {
588
                            AV_COPY128(top_border + 16, src_cb + 15 * uvlinesize);
589
                            AV_COPY128(top_border + 32, src_cr + 15 * uvlinesize);
590
                        }
591
665811
                    } else if (chroma422) {
592
106510
                        if (pixel_shift) {
593
106510
                            AV_COPY128(top_border + 32, src_cb + 15 * uvlinesize);
594
106510
                            AV_COPY128(top_border + 48, src_cr + 15 * uvlinesize);
595
                        } else {
596
                            AV_COPY64(top_border + 16, src_cb + 15 * uvlinesize);
597
                            AV_COPY64(top_border + 24, src_cr + 15 * uvlinesize);
598
                        }
599
                    } else {
600
559301
                        if (pixel_shift) {
601
106629
                            AV_COPY128(top_border + 32, src_cb + 7 * uvlinesize);
602
106629
                            AV_COPY128(top_border + 48, src_cr + 7 * uvlinesize);
603
                        } else {
604
452672
                            AV_COPY64(top_border + 16, src_cb + 7 * uvlinesize);
605
452672
                            AV_COPY64(top_border + 24, src_cr + 7 * uvlinesize);
606
                        }
607
                    }
608
                }
609
            }
610
907068
        } else if (MB_MBAFF(sl)) {
611
241257
            top_idx = 0;
612
        } else
613
665811
            return;
614
    }
615
616
10090572
    top_border = sl->top_borders[top_idx][sl->mb_x];
617
    /* There are two lines saved, the line above the top macroblock
618
     * of a pair, and the line above the bottom macroblock. */
619
10090572
    AV_COPY128(top_border, src_y + 16 * linesize);
620
10090572
    if (pixel_shift)
621
1300901
        AV_COPY128(top_border + 16, src_y + 16 * linesize + 16);
622
623
    if (simple || !CONFIG_GRAY || !(h->flags & AV_CODEC_FLAG_GRAY)) {
624
10090572
        if (chroma444) {
625
39528
            if (pixel_shift) {
626
19800
                AV_COPY128(top_border + 32, src_cb + 16 * linesize);
627
19800
                AV_COPY128(top_border + 48, src_cb + 16 * linesize + 16);
628
19800
                AV_COPY128(top_border + 64, src_cr + 16 * linesize);
629
19800
                AV_COPY128(top_border + 80, src_cr + 16 * linesize + 16);
630
            } else {
631
19728
                AV_COPY128(top_border + 16, src_cb + 16 * linesize);
632
19728
                AV_COPY128(top_border + 32, src_cr + 16 * linesize);
633
            }
634
10051044
        } else if (chroma422) {
635
588635
            if (pixel_shift) {
636
584675
                AV_COPY128(top_border + 32, src_cb + 16 * uvlinesize);
637
584675
                AV_COPY128(top_border + 48, src_cr + 16 * uvlinesize);
638
            } else {
639
3960
                AV_COPY64(top_border + 16, src_cb + 16 * uvlinesize);
640
3960
                AV_COPY64(top_border + 24, src_cr + 16 * uvlinesize);
641
            }
642
        } else {
643
9462409
            if (pixel_shift) {
644
696426
                AV_COPY128(top_border + 32, src_cb + 8 * uvlinesize);
645
696426
                AV_COPY128(top_border + 48, src_cr + 8 * uvlinesize);
646
            } else {
647
8765983
                AV_COPY64(top_border + 16, src_cb + 8 * uvlinesize);
648
8765983
                AV_COPY64(top_border + 24, src_cr + 8 * uvlinesize);
649
            }
650
        }
651
    }
652
}
653
654
/**
655
 * Initialize implicit_weight table.
656
 * @param field  0/1 initialize the weight for interlaced MBAFF
657
 *                -1 initializes the rest
658
 */
659
3299
static void implicit_weight_table(const H264Context *h, H264SliceContext *sl, int field)
660
{
661
    int ref0, ref1, i, cur_poc, ref_start, ref_count0, ref_count1;
662
663
9897
    for (i = 0; i < 2; i++) {
664
6598
        sl->pwt.luma_weight_flag[i]   = 0;
665
6598
        sl->pwt.chroma_weight_flag[i] = 0;
666
    }
667
668
3299
    if (field < 0) {
669
1589
        if (h->picture_structure == PICT_FRAME) {
670
1589
            cur_poc = h->cur_pic_ptr->poc;
671
        } else {
672
            cur_poc = h->cur_pic_ptr->field_poc[h->picture_structure - 1];
673
        }
674

1589
        if (sl->ref_count[0] == 1 && sl->ref_count[1] == 1 && !FRAME_MBAFF(h) &&
675
97
            sl->ref_list[0][0].poc + (int64_t)sl->ref_list[1][0].poc == 2LL * cur_poc) {
676
34
            sl->pwt.use_weight        = 0;
677
34
            sl->pwt.use_weight_chroma = 0;
678
34
            return;
679
        }
680
1555
        ref_start  = 0;
681
1555
        ref_count0 = sl->ref_count[0];
682
1555
        ref_count1 = sl->ref_count[1];
683
    } else {
684
1710
        cur_poc    = h->cur_pic_ptr->field_poc[field];
685
1710
        ref_start  = 16;
686
1710
        ref_count0 = 16 + 2 * sl->ref_count[0];
687
1710
        ref_count1 = 16 + 2 * sl->ref_count[1];
688
    }
689
690
3265
    sl->pwt.use_weight               = 2;
691
3265
    sl->pwt.use_weight_chroma        = 2;
692
3265
    sl->pwt.luma_log2_weight_denom   = 5;
693
3265
    sl->pwt.chroma_log2_weight_denom = 5;
694
695
14879
    for (ref0 = ref_start; ref0 < ref_count0; ref0++) {
696
11614
        int64_t poc0 = sl->ref_list[0][ref0].poc;
697
33317
        for (ref1 = ref_start; ref1 < ref_count1; ref1++) {
698
21703
            int w = 32;
699

21703
            if (!sl->ref_list[0][ref0].parent->long_ref && !sl->ref_list[1][ref1].parent->long_ref) {
700
21703
                int poc1 = sl->ref_list[1][ref1].poc;
701
21703
                int td   = av_clip_int8(poc1 - poc0);
702
21703
                if (td) {
703
21637
                    int tb = av_clip_int8(cur_poc - poc0);
704
21637
                    int tx = (16384 + (FFABS(td) >> 1)) / td;
705
21637
                    int dist_scale_factor = (tb * tx + 32) >> 8;
706

21637
                    if (dist_scale_factor >= -64 && dist_scale_factor <= 128)
707
21633
                        w = 64 - dist_scale_factor;
708
                }
709
            }
710
21703
            if (field < 0) {
711
5823
                sl->pwt.implicit_weight[ref0][ref1][0] =
712
5823
                sl->pwt.implicit_weight[ref0][ref1][1] = w;
713
            } else {
714
15880
                sl->pwt.implicit_weight[ref0][ref1][field] = w;
715
            }
716
        }
717
    }
718
}
719
720
/**
721
 * initialize scan tables
722
 */
723
534
static void init_scan_tables(H264Context *h)
724
{
725
    int i;
726
9078
    for (i = 0; i < 16; i++) {
727
#define TRANSPOSE(x) ((x) >> 2) | (((x) << 2) & 0xF)
728
8544
        h->zigzag_scan[i] = TRANSPOSE(ff_zigzag_scan[i]);
729
8544
        h->field_scan[i]  = TRANSPOSE(field_scan[i]);
730
#undef TRANSPOSE
731
    }
732
34710
    for (i = 0; i < 64; i++) {
733
#define TRANSPOSE(x) ((x) >> 3) | (((x) & 7) << 3)
734
34176
        h->zigzag_scan8x8[i]       = TRANSPOSE(ff_zigzag_direct[i]);
735
34176
        h->zigzag_scan8x8_cavlc[i] = TRANSPOSE(zigzag_scan8x8_cavlc[i]);
736
34176
        h->field_scan8x8[i]        = TRANSPOSE(field_scan8x8[i]);
737
34176
        h->field_scan8x8_cavlc[i]  = TRANSPOSE(field_scan8x8_cavlc[i]);
738
#undef TRANSPOSE
739
    }
740
534
    if (h->ps.sps->transform_bypass) { // FIXME same ugly
741
12
        memcpy(h->zigzag_scan_q0          , ff_zigzag_scan          , sizeof(h->zigzag_scan_q0         ));
742
12
        memcpy(h->zigzag_scan8x8_q0       , ff_zigzag_direct        , sizeof(h->zigzag_scan8x8_q0      ));
743
12
        memcpy(h->zigzag_scan8x8_cavlc_q0 , zigzag_scan8x8_cavlc    , sizeof(h->zigzag_scan8x8_cavlc_q0));
744
12
        memcpy(h->field_scan_q0           , field_scan              , sizeof(h->field_scan_q0          ));
745
12
        memcpy(h->field_scan8x8_q0        , field_scan8x8           , sizeof(h->field_scan8x8_q0       ));
746
12
        memcpy(h->field_scan8x8_cavlc_q0  , field_scan8x8_cavlc     , sizeof(h->field_scan8x8_cavlc_q0 ));
747
    } else {
748
522
        memcpy(h->zigzag_scan_q0          , h->zigzag_scan          , sizeof(h->zigzag_scan_q0         ));
749
522
        memcpy(h->zigzag_scan8x8_q0       , h->zigzag_scan8x8       , sizeof(h->zigzag_scan8x8_q0      ));
750
522
        memcpy(h->zigzag_scan8x8_cavlc_q0 , h->zigzag_scan8x8_cavlc , sizeof(h->zigzag_scan8x8_cavlc_q0));
751
522
        memcpy(h->field_scan_q0           , h->field_scan           , sizeof(h->field_scan_q0          ));
752
522
        memcpy(h->field_scan8x8_q0        , h->field_scan8x8        , sizeof(h->field_scan8x8_q0       ));
753
522
        memcpy(h->field_scan8x8_cavlc_q0  , h->field_scan8x8_cavlc  , sizeof(h->field_scan8x8_cavlc_q0 ));
754
    }
755
534
}
756
757
26147
static enum AVPixelFormat get_pixel_format(H264Context *h, int force_callback)
758
{
759
#define HWACCEL_MAX (CONFIG_H264_DXVA2_HWACCEL + \
760
                     (CONFIG_H264_D3D11VA_HWACCEL * 2) + \
761
                     CONFIG_H264_NVDEC_HWACCEL + \
762
                     CONFIG_H264_VAAPI_HWACCEL + \
763
                     CONFIG_H264_VIDEOTOOLBOX_HWACCEL + \
764
                     CONFIG_H264_VDPAU_HWACCEL)
765
26147
    enum AVPixelFormat pix_fmts[HWACCEL_MAX + 2], *fmt = pix_fmts;
766
26147
    const enum AVPixelFormat *choices = pix_fmts;
767
    int i;
768
769

26147
    switch (h->ps.sps->bit_depth_luma) {
770
155
    case 9:
771
155
        if (CHROMA444(h)) {
772
            if (h->avctx->colorspace == AVCOL_SPC_RGB) {
773
                *fmt++ = AV_PIX_FMT_GBRP9;
774
            } else
775
                *fmt++ = AV_PIX_FMT_YUV444P9;
776
155
        } else if (CHROMA422(h))
777
52
            *fmt++ = AV_PIX_FMT_YUV422P9;
778
        else
779
103
            *fmt++ = AV_PIX_FMT_YUV420P9;
780
155
        break;
781
355
    case 10:
782
355
        if (CHROMA444(h)) {
783
51
            if (h->avctx->colorspace == AVCOL_SPC_RGB) {
784
                *fmt++ = AV_PIX_FMT_GBRP10;
785
            } else
786
51
                *fmt++ = AV_PIX_FMT_YUV444P10;
787
304
        } else if (CHROMA422(h))
788
164
            *fmt++ = AV_PIX_FMT_YUV422P10;
789
        else
790
140
            *fmt++ = AV_PIX_FMT_YUV420P10;
791
355
        break;
792
    case 12:
793
        if (CHROMA444(h)) {
794
            if (h->avctx->colorspace == AVCOL_SPC_RGB) {
795
                *fmt++ = AV_PIX_FMT_GBRP12;
796
            } else
797
                *fmt++ = AV_PIX_FMT_YUV444P12;
798
        } else if (CHROMA422(h))
799
            *fmt++ = AV_PIX_FMT_YUV422P12;
800
        else
801
            *fmt++ = AV_PIX_FMT_YUV420P12;
802
        break;
803
    case 14:
804
        if (CHROMA444(h)) {
805
            if (h->avctx->colorspace == AVCOL_SPC_RGB) {
806
                *fmt++ = AV_PIX_FMT_GBRP14;
807
            } else
808
                *fmt++ = AV_PIX_FMT_YUV444P14;
809
        } else if (CHROMA422(h))
810
            *fmt++ = AV_PIX_FMT_YUV422P14;
811
        else
812
            *fmt++ = AV_PIX_FMT_YUV420P14;
813
        break;
814
25637
    case 8:
815
#if CONFIG_H264_VDPAU_HWACCEL
816
25637
        *fmt++ = AV_PIX_FMT_VDPAU;
817
#endif
818
#if CONFIG_H264_NVDEC_HWACCEL
819
        *fmt++ = AV_PIX_FMT_CUDA;
820
#endif
821
25637
        if (CHROMA444(h)) {
822
400
            if (h->avctx->colorspace == AVCOL_SPC_RGB)
823
                *fmt++ = AV_PIX_FMT_GBRP;
824
400
            else if (h->avctx->color_range == AVCOL_RANGE_JPEG)
825
                *fmt++ = AV_PIX_FMT_YUVJ444P;
826
            else
827
400
                *fmt++ = AV_PIX_FMT_YUV444P;
828
25237
        } else if (CHROMA422(h)) {
829
22
            if (h->avctx->color_range == AVCOL_RANGE_JPEG)
830
                *fmt++ = AV_PIX_FMT_YUVJ422P;
831
            else
832
22
                *fmt++ = AV_PIX_FMT_YUV422P;
833
        } else {
834
#if CONFIG_H264_DXVA2_HWACCEL
835
            *fmt++ = AV_PIX_FMT_DXVA2_VLD;
836
#endif
837
#if CONFIG_H264_D3D11VA_HWACCEL
838
            *fmt++ = AV_PIX_FMT_D3D11VA_VLD;
839
            *fmt++ = AV_PIX_FMT_D3D11;
840
#endif
841
#if CONFIG_H264_VAAPI_HWACCEL
842
25215
            *fmt++ = AV_PIX_FMT_VAAPI;
843
#endif
844
#if CONFIG_H264_VIDEOTOOLBOX_HWACCEL
845
            *fmt++ = AV_PIX_FMT_VIDEOTOOLBOX;
846
#endif
847
25215
            if (h->avctx->codec->pix_fmts)
848
                choices = h->avctx->codec->pix_fmts;
849
25215
            else if (h->avctx->color_range == AVCOL_RANGE_JPEG)
850
3
                *fmt++ = AV_PIX_FMT_YUVJ420P;
851
            else
852
25212
                *fmt++ = AV_PIX_FMT_YUV420P;
853
        }
854
25637
        break;
855
    default:
856
        av_log(h->avctx, AV_LOG_ERROR,
857
               "Unsupported bit depth %d\n", h->ps.sps->bit_depth_luma);
858
        return AVERROR_INVALIDDATA;
859
    }
860
861
26147
    *fmt = AV_PIX_FMT_NONE;
862
863
77528
    for (i=0; choices[i] != AV_PIX_FMT_NONE; i++)
864

76999
        if (choices[i] == h->avctx->pix_fmt && !force_callback)
865
25618
            return choices[i];
866
529
    return ff_thread_get_format(h->avctx, choices);
867
}
868
869
/* export coded and cropped frame dimensions to AVCodecContext */
870
25907
static void init_dimensions(H264Context *h)
871
{
872
25907
    const SPS *sps = (const SPS*)h->ps.sps;
873
25907
    int cr = sps->crop_right;
874
25907
    int cl = sps->crop_left;
875
25907
    int ct = sps->crop_top;
876
25907
    int cb = sps->crop_bottom;
877
25907
    int width  = h->width  - (cr + cl);
878
25907
    int height = h->height - (ct + cb);
879
25907
    av_assert0(sps->crop_right + sps->crop_left < (unsigned)h->width);
880
25907
    av_assert0(sps->crop_top + sps->crop_bottom < (unsigned)h->height);
881
882
    /* handle container cropping */
883

25907
    if (h->width_from_caller > 0 && h->height_from_caller > 0     &&
884

23712
        !sps->crop_top && !sps->crop_left                         &&
885
23711
        FFALIGN(h->width_from_caller,  16) == FFALIGN(width,  16) &&
886
23706
        FFALIGN(h->height_from_caller, 16) == FFALIGN(height, 16) &&
887
23706
        h->width_from_caller  <= width &&
888
23706
        h->height_from_caller <= height) {
889
23705
        width  = h->width_from_caller;
890
23705
        height = h->height_from_caller;
891
23705
        cl = 0;
892
23705
        ct = 0;
893
23705
        cr = h->width - width;
894
23705
        cb = h->height - height;
895
    } else {
896
2202
        h->width_from_caller  = 0;
897
2202
        h->height_from_caller = 0;
898
    }
899
900
25907
    h->avctx->coded_width  = h->width;
901
25907
    h->avctx->coded_height = h->height;
902
25907
    h->avctx->width        = width;
903
25907
    h->avctx->height       = height;
904
25907
    h->crop_right          = cr;
905
25907
    h->crop_left           = cl;
906
25907
    h->crop_top            = ct;
907
25907
    h->crop_bottom         = cb;
908
25907
}
909
910
534
static int h264_slice_header_init(H264Context *h)
911
{
912
534
    const SPS *sps = h->ps.sps;
913
    int i, ret;
914
915
534
    ff_set_sar(h->avctx, sps->sar);
916
534
    av_pix_fmt_get_chroma_sub_sample(h->avctx->pix_fmt,
917
                                     &h->chroma_x_shift, &h->chroma_y_shift);
918
919
534
    if (sps->timing_info_present_flag) {
920
131
        int64_t den = sps->time_scale;
921
131
        if (h->x264_build < 44U)
922
            den *= 2;
923
131
        av_reduce(&h->avctx->framerate.den, &h->avctx->framerate.num,
924
131
                  sps->num_units_in_tick * h->avctx->ticks_per_frame, den, 1 << 30);
925
    }
926
927
534
    ff_h264_free_tables(h);
928
929
534
    h->first_field           = 0;
930
534
    h->prev_interlaced_frame = 1;
931
932
534
    init_scan_tables(h);
933
534
    ret = ff_h264_alloc_tables(h);
934
534
    if (ret < 0) {
935
        av_log(h->avctx, AV_LOG_ERROR, "Could not allocate memory\n");
936
        goto fail;
937
    }
938
939

534
    if (sps->bit_depth_luma < 8 || sps->bit_depth_luma > 14 ||
940

534
        sps->bit_depth_luma == 11 || sps->bit_depth_luma == 13
941
    ) {
942
        av_log(h->avctx, AV_LOG_ERROR, "Unsupported bit depth %d\n",
943
               sps->bit_depth_luma);
944
        ret = AVERROR_INVALIDDATA;
945
        goto fail;
946
    }
947
948
534
    h->cur_bit_depth_luma         =
949
534
    h->avctx->bits_per_raw_sample = sps->bit_depth_luma;
950
534
    h->cur_chroma_format_idc      = sps->chroma_format_idc;
951
534
    h->pixel_shift                = sps->bit_depth_luma > 8;
952
534
    h->chroma_format_idc          = sps->chroma_format_idc;
953
534
    h->bit_depth_luma             = sps->bit_depth_luma;
954
955
534
    ff_h264dsp_init(&h->h264dsp, sps->bit_depth_luma,
956
                    sps->chroma_format_idc);
957
534
    ff_h264chroma_init(&h->h264chroma, sps->bit_depth_chroma);
958
534
    ff_h264qpel_init(&h->h264qpel, sps->bit_depth_luma);
959
534
    ff_h264_pred_init(&h->hpc, h->avctx->codec_id, sps->bit_depth_luma,
960
                      sps->chroma_format_idc);
961
534
    ff_videodsp_init(&h->vdsp, sps->bit_depth_luma);
962
963
534
    if (!HAVE_THREADS || !(h->avctx->active_thread_type & FF_THREAD_SLICE)) {
964
533
        ret = ff_h264_slice_context_init(h, &h->slice_ctx[0]);
965
533
        if (ret < 0) {
966
            av_log(h->avctx, AV_LOG_ERROR, "context_init() failed.\n");
967
            goto fail;
968
        }
969
    } else {
970
3
        for (i = 0; i < h->nb_slice_ctx; i++) {
971
2
            H264SliceContext *sl = &h->slice_ctx[i];
972
973
2
            sl->h264               = h;
974
2
            sl->intra4x4_pred_mode = h->intra4x4_pred_mode + i * 8 * 2 * h->mb_stride;
975
2
            sl->mvd_table[0]       = h->mvd_table[0]       + i * 8 * 2 * h->mb_stride;
976
2
            sl->mvd_table[1]       = h->mvd_table[1]       + i * 8 * 2 * h->mb_stride;
977
978
2
            if ((ret = ff_h264_slice_context_init(h, sl)) < 0) {
979
                av_log(h->avctx, AV_LOG_ERROR, "context_init() failed.\n");
980
                goto fail;
981
            }
982
        }
983
    }
984
985
534
    h->context_initialized = 1;
986
987
534
    return 0;
988
fail:
989
    ff_h264_free_tables(h);
990
    h->context_initialized = 0;
991
    return ret;
992
}
993
994
51242
static enum AVPixelFormat non_j_pixfmt(enum AVPixelFormat a)
995
{
996

51242
    switch (a) {
997
2
    case AV_PIX_FMT_YUVJ420P: return AV_PIX_FMT_YUV420P;
998
    case AV_PIX_FMT_YUVJ422P: return AV_PIX_FMT_YUV422P;
999
    case AV_PIX_FMT_YUVJ444P: return AV_PIX_FMT_YUV444P;
1000
51240
    default:
1001
51240
        return a;
1002
    }
1003
}
1004
1005
25907
static int h264_init_ps(H264Context *h, const H264SliceContext *sl, int first_slice)
1006
{
1007
    const SPS *sps;
1008
25907
    int needs_reinit = 0, must_reinit, ret;
1009
1010
25907
    if (first_slice) {
1011
25714
        av_buffer_unref(&h->ps.pps_ref);
1012
25714
        h->ps.pps = NULL;
1013
25714
        h->ps.pps_ref = av_buffer_ref(h->ps.pps_list[sl->pps_id]);
1014
25714
        if (!h->ps.pps_ref)
1015
            return AVERROR(ENOMEM);
1016
25714
        h->ps.pps = (const PPS*)h->ps.pps_ref->data;
1017
    }
1018
1019
25907
    if (h->ps.sps != h->ps.pps->sps) {
1020
530
        h->ps.sps = (const SPS*)h->ps.pps->sps;
1021
1022
530
        if (h->mb_width  != h->ps.sps->mb_width ||
1023
6
            h->mb_height != h->ps.sps->mb_height ||
1024
6
            h->cur_bit_depth_luma    != h->ps.sps->bit_depth_luma ||
1025
5
            h->cur_chroma_format_idc != h->ps.sps->chroma_format_idc
1026
        )
1027
526
            needs_reinit = 1;
1028
1029
530
        if (h->bit_depth_luma    != h->ps.sps->bit_depth_luma ||
1030
8
            h->chroma_format_idc != h->ps.sps->chroma_format_idc)
1031
523
            needs_reinit         = 1;
1032
    }
1033
25907
    sps = h->ps.sps;
1034
1035
51294
    must_reinit = (h->context_initialized &&
1036
25387
                    (   16*sps->mb_width != h->avctx->coded_width
1037
25383
                     || 16*sps->mb_height != h->avctx->coded_height
1038
25383
                     || h->cur_bit_depth_luma    != sps->bit_depth_luma
1039
25382
                     || h->cur_chroma_format_idc != sps->chroma_format_idc
1040
25381
                     || h->mb_width  != sps->mb_width
1041
25381
                     || h->mb_height != sps->mb_height
1042
                    ));
1043
25907
    if (h->avctx->pix_fmt == AV_PIX_FMT_NONE
1044
25621
        || (non_j_pixfmt(h->avctx->pix_fmt) != non_j_pixfmt(get_pixel_format(h, 0))))
1045
289
        must_reinit = 1;
1046
1047

25907
    if (first_slice && av_cmp_q(sps->sar, h->avctx->sample_aspect_ratio))
1048
48
        must_reinit = 1;
1049
1050
25907
    if (!h->setup_finished) {
1051
25907
        h->avctx->profile = ff_h264_get_profile(sps);
1052
25907
        h->avctx->level   = sps->level_idc;
1053
25907
        h->avctx->refs    = sps->ref_frame_count;
1054
1055
25907
        h->mb_width  = sps->mb_width;
1056
25907
        h->mb_height = sps->mb_height;
1057
25907
        h->mb_num    = h->mb_width * h->mb_height;
1058
25907
        h->mb_stride = h->mb_width + 1;
1059
1060
25907
        h->b_stride = h->mb_width * 4;
1061
1062
25907
        h->chroma_y_shift = sps->chroma_format_idc <= 1; // 400 uses yuv420p
1063
1064
25907
        h->width  = 16 * h->mb_width;
1065
25907
        h->height = 16 * h->mb_height;
1066
1067
25907
        init_dimensions(h);
1068
1069
25907
        if (sps->video_signal_type_present_flag) {
1070
1338
            h->avctx->color_range = sps->full_range > 0 ? AVCOL_RANGE_JPEG
1071
669
                                                        : AVCOL_RANGE_MPEG;
1072
669
            if (sps->colour_description_present_flag) {
1073
571
                if (h->avctx->colorspace != sps->colorspace)
1074
14
                    needs_reinit = 1;
1075
571
                h->avctx->color_primaries = sps->color_primaries;
1076
571
                h->avctx->color_trc       = sps->color_trc;
1077
571
                h->avctx->colorspace      = sps->colorspace;
1078
            }
1079
        }
1080
1081

25907
        if (h->sei.alternative_transfer.present &&
1082
            av_color_transfer_name(h->sei.alternative_transfer.preferred_transfer_characteristics) &&
1083
            h->sei.alternative_transfer.preferred_transfer_characteristics != AVCOL_TRC_UNSPECIFIED) {
1084
            h->avctx->color_trc = h->sei.alternative_transfer.preferred_transfer_characteristics;
1085
        }
1086
    }
1087
25907
    h->avctx->chroma_sample_location = sps->chroma_location;
1088
1089

25907
    if (!h->context_initialized || must_reinit || needs_reinit) {
1090
526
        int flush_changes = h->context_initialized;
1091
526
        h->context_initialized = 0;
1092
526
        if (sl != h->slice_ctx) {
1093
            av_log(h->avctx, AV_LOG_ERROR,
1094
                   "changing width %d -> %d / height %d -> %d on "
1095
                   "slice %d\n",
1096
                   h->width, h->avctx->coded_width,
1097
                   h->height, h->avctx->coded_height,
1098
                   h->current_slice + 1);
1099
            return AVERROR_INVALIDDATA;
1100
        }
1101
1102
        av_assert1(first_slice);
1103
1104
526
        if (flush_changes)
1105
6
            ff_h264_flush_change(h);
1106
1107
526
        if ((ret = get_pixel_format(h, 1)) < 0)
1108
            return ret;
1109
526
        h->avctx->pix_fmt = ret;
1110
1111
526
        av_log(h->avctx, AV_LOG_VERBOSE, "Reinit context to %dx%d, "
1112
526
               "pix_fmt: %s\n", h->width, h->height, av_get_pix_fmt_name(h->avctx->pix_fmt));
1113
1114
526
        if ((ret = h264_slice_header_init(h)) < 0) {
1115
            av_log(h->avctx, AV_LOG_ERROR,
1116
                   "h264_slice_header_init() failed\n");
1117
            return ret;
1118
        }
1119
    }
1120
1121
25907
    return 0;
1122
}
1123
1124
22670
static int h264_export_frame_props(H264Context *h)
1125
{
1126
22670
    const SPS *sps = h->ps.sps;
1127
22670
    H264Picture *cur = h->cur_pic_ptr;
1128
1129
22670
    cur->f->interlaced_frame = 0;
1130
22670
    cur->f->repeat_pict      = 0;
1131
1132
    /* Signal interlacing information externally. */
1133
    /* Prioritize picture timing SEI information over used
1134
     * decoding process if it exists. */
1135
22670
    if (h->sei.picture_timing.present) {
1136
1259
        int ret = ff_h264_sei_process_picture_timing(&h->sei.picture_timing, sps,
1137
1259
                                                     h->avctx);
1138
1259
        if (ret < 0) {
1139
            av_log(h->avctx, AV_LOG_ERROR, "Error processing a picture timing SEI\n");
1140
            if (h->avctx->err_recognition & AV_EF_EXPLODE)
1141
                return ret;
1142
            h->sei.picture_timing.present = 0;
1143
        }
1144
    }
1145
1146

23921
    if (sps->pic_struct_present_flag && h->sei.picture_timing.present) {
1147
1251
        H264SEIPictureTiming *pt = &h->sei.picture_timing;
1148

1251
        switch (pt->pic_struct) {
1149
132
        case H264_SEI_PIC_STRUCT_FRAME:
1150
132
            break;
1151
248
        case H264_SEI_PIC_STRUCT_TOP_FIELD:
1152
        case H264_SEI_PIC_STRUCT_BOTTOM_FIELD:
1153
248
            cur->f->interlaced_frame = 1;
1154
248
            break;
1155
704
        case H264_SEI_PIC_STRUCT_TOP_BOTTOM:
1156
        case H264_SEI_PIC_STRUCT_BOTTOM_TOP:
1157

704
            if (FIELD_OR_MBAFF_PICTURE(h))
1158
700
                cur->f->interlaced_frame = 1;
1159
            else
1160
                // try to flag soft telecine progressive
1161
4
                cur->f->interlaced_frame = h->prev_interlaced_frame;
1162
704
            break;
1163
167
        case H264_SEI_PIC_STRUCT_TOP_BOTTOM_TOP:
1164
        case H264_SEI_PIC_STRUCT_BOTTOM_TOP_BOTTOM:
1165
            /* Signal the possibility of telecined film externally
1166
             * (pic_struct 5,6). From these hints, let the applications
1167
             * decide if they apply deinterlacing. */
1168
167
            cur->f->repeat_pict = 1;
1169
167
            break;
1170
        case H264_SEI_PIC_STRUCT_FRAME_DOUBLING:
1171
            cur->f->repeat_pict = 2;
1172
            break;
1173
        case H264_SEI_PIC_STRUCT_FRAME_TRIPLING:
1174
            cur->f->repeat_pict = 4;
1175
            break;
1176
        }
1177
1178
1251
        if ((pt->ct_type & 3) &&
1179
651
            pt->pic_struct <= H264_SEI_PIC_STRUCT_BOTTOM_TOP)
1180
487
            cur->f->interlaced_frame = (pt->ct_type & (1 << 1)) != 0;
1181
    } else {
1182
        /* Derive interlacing flag from used decoding process. */
1183

21419
        cur->f->interlaced_frame = FIELD_OR_MBAFF_PICTURE(h);
1184
    }
1185
22670
    h->prev_interlaced_frame = cur->f->interlaced_frame;
1186
1187
22670
    if (cur->field_poc[0] != cur->field_poc[1]) {
1188
        /* Derive top_field_first from field pocs. */
1189
3169
        cur->f->top_field_first = cur->field_poc[0] < cur->field_poc[1];
1190
    } else {
1191

19501
        if (sps->pic_struct_present_flag && h->sei.picture_timing.present) {
1192
            /* Use picture timing SEI information. Even if it is a
1193
             * information of a past frame, better than nothing. */
1194
139
            if (h->sei.picture_timing.pic_struct == H264_SEI_PIC_STRUCT_TOP_BOTTOM ||
1195
138
                h->sei.picture_timing.pic_struct == H264_SEI_PIC_STRUCT_TOP_BOTTOM_TOP)
1196
3
                cur->f->top_field_first = 1;
1197
            else
1198
136
                cur->f->top_field_first = 0;
1199
19362
        } else if (cur->f->interlaced_frame) {
1200
            /* Default to top field first when pic_struct_present_flag
1201
             * is not set but interlaced frame detected */
1202
2554
            cur->f->top_field_first = 1;
1203
        } else {
1204
            /* Most likely progressive */
1205
16808
            cur->f->top_field_first = 0;
1206
        }
1207
    }
1208
1209
22670
    if (h->sei.frame_packing.present &&
1210
        h->sei.frame_packing.arrangement_type <= 6 &&
1211
        h->sei.frame_packing.content_interpretation_type > 0 &&
1212
        h->sei.frame_packing.content_interpretation_type < 3) {
1213
        H264SEIFramePacking *fp = &h->sei.frame_packing;
1214
        AVStereo3D *stereo = av_stereo3d_create_side_data(cur->f);
1215
        if (stereo) {
1216
        switch (fp->arrangement_type) {
1217
        case H264_SEI_FPA_TYPE_CHECKERBOARD:
1218
            stereo->type = AV_STEREO3D_CHECKERBOARD;
1219
            break;
1220
        case H264_SEI_FPA_TYPE_INTERLEAVE_COLUMN:
1221
            stereo->type = AV_STEREO3D_COLUMNS;
1222
            break;
1223
        case H264_SEI_FPA_TYPE_INTERLEAVE_ROW:
1224
            stereo->type = AV_STEREO3D_LINES;
1225
            break;
1226
        case H264_SEI_FPA_TYPE_SIDE_BY_SIDE:
1227
            if (fp->quincunx_sampling_flag)
1228
                stereo->type = AV_STEREO3D_SIDEBYSIDE_QUINCUNX;
1229
            else
1230
                stereo->type = AV_STEREO3D_SIDEBYSIDE;
1231
            break;
1232
        case H264_SEI_FPA_TYPE_TOP_BOTTOM:
1233
            stereo->type = AV_STEREO3D_TOPBOTTOM;
1234
            break;
1235
        case H264_SEI_FPA_TYPE_INTERLEAVE_TEMPORAL:
1236
            stereo->type = AV_STEREO3D_FRAMESEQUENCE;
1237
            break;
1238
        case H264_SEI_FPA_TYPE_2D:
1239
            stereo->type = AV_STEREO3D_2D;
1240
            break;
1241
        }
1242
1243
        if (fp->content_interpretation_type == 2)
1244
            stereo->flags = AV_STEREO3D_FLAG_INVERT;
1245
1246
        if (fp->arrangement_type == H264_SEI_FPA_TYPE_INTERLEAVE_TEMPORAL) {
1247
            if (fp->current_frame_is_frame0_flag)
1248
                stereo->view = AV_STEREO3D_VIEW_LEFT;
1249
            else
1250
                stereo->view = AV_STEREO3D_VIEW_RIGHT;
1251
        }
1252
        }
1253
    }
1254
1255
22670
    if (h->sei.display_orientation.present &&
1256
1
        (h->sei.display_orientation.anticlockwise_rotation ||
1257
1
         h->sei.display_orientation.hflip ||
1258
1
         h->sei.display_orientation.vflip)) {
1259
        H264SEIDisplayOrientation *o = &h->sei.display_orientation;
1260
        double angle = o->anticlockwise_rotation * 360 / (double) (1 << 16);
1261
        AVFrameSideData *rotation = av_frame_new_side_data(cur->f,
1262
                                                           AV_FRAME_DATA_DISPLAYMATRIX,
1263
                                                           sizeof(int32_t) * 9);
1264
        if (rotation) {
1265
            av_display_rotation_set((int32_t *)rotation->data, angle);
1266
            av_display_matrix_flip((int32_t *)rotation->data,
1267
                                   o->hflip, o->vflip);
1268
        }
1269
    }
1270
1271
22670
    if (h->sei.afd.present) {
1272
140
        AVFrameSideData *sd = av_frame_new_side_data(cur->f, AV_FRAME_DATA_AFD,
1273
                                                     sizeof(uint8_t));
1274
1275
140
        if (sd) {
1276
140
            *sd->data = h->sei.afd.active_format_description;
1277
140
            h->sei.afd.present = 0;
1278
        }
1279
    }
1280
1281
22670
    if (h->sei.a53_caption.buf_ref) {
1282
1
        H264SEIA53Caption *a53 = &h->sei.a53_caption;
1283
1284
1
        AVFrameSideData *sd = av_frame_new_side_data_from_buf(cur->f, AV_FRAME_DATA_A53_CC, a53->buf_ref);
1285
1
        if (!sd)
1286
            av_buffer_unref(&a53->buf_ref);
1287
1
        a53->buf_ref = NULL;
1288
1289
1
        h->avctx->properties |= FF_CODEC_PROPERTY_CLOSED_CAPTIONS;
1290
    }
1291
1292
22839
    for (int i = 0; i < h->sei.unregistered.nb_buf_ref; i++) {
1293
169
        H264SEIUnregistered *unreg = &h->sei.unregistered;
1294
1295
169
        if (unreg->buf_ref[i]) {
1296
169
            AVFrameSideData *sd = av_frame_new_side_data_from_buf(cur->f,
1297
                    AV_FRAME_DATA_SEI_UNREGISTERED,
1298
169
                    unreg->buf_ref[i]);
1299
169
            if (!sd)
1300
                av_buffer_unref(&unreg->buf_ref[i]);
1301
169
            unreg->buf_ref[i] = NULL;
1302
        }
1303
    }
1304
22670
    h->sei.unregistered.nb_buf_ref = 0;
1305
1306
22670
    if (h->sei.picture_timing.timecode_cnt > 0) {
1307
        uint32_t *tc_sd;
1308
1309
651
        AVFrameSideData *tcside = av_frame_new_side_data(cur->f,
1310
                                                         AV_FRAME_DATA_S12M_TIMECODE,
1311
                                                         sizeof(uint32_t)*4);
1312
651
        if (!tcside)
1313
            return AVERROR(ENOMEM);
1314
1315
651
        tc_sd = (uint32_t*)tcside->data;
1316
651
        tc_sd[0] = h->sei.picture_timing.timecode_cnt;
1317
1318
1603
        for (int i = 0; i < tc_sd[0]; i++) {
1319
952
            int drop = h->sei.picture_timing.timecode[i].dropframe;
1320
952
            int   hh = h->sei.picture_timing.timecode[i].hours;
1321
952
            int   mm = h->sei.picture_timing.timecode[i].minutes;
1322
952
            int   ss = h->sei.picture_timing.timecode[i].seconds;
1323
952
            int   ff = h->sei.picture_timing.timecode[i].frame;
1324
1325
952
            tc_sd[i + 1] = av_timecode_get_smpte(h->avctx->framerate, drop, hh, mm, ss, ff);
1326
        }
1327
651
        h->sei.picture_timing.timecode_cnt = 0;
1328
    }
1329
1330
22670
    return 0;
1331
}
1332
1333
22670
static int h264_select_output_frame(H264Context *h)
1334
{
1335
22670
    const SPS *sps = h->ps.sps;
1336
22670
    H264Picture *out = h->cur_pic_ptr;
1337
22670
    H264Picture *cur = h->cur_pic_ptr;
1338
    int i, pics, out_of_order, out_idx;
1339
1340
22670
    cur->mmco_reset = h->mmco_reset;
1341
22670
    h->mmco_reset = 0;
1342
1343
22670
    if (sps->bitstream_restriction_flag ||
1344
19360
        h->avctx->strict_std_compliance >= FF_COMPLIANCE_STRICT) {
1345
3310
        h->avctx->has_b_frames = FFMAX(h->avctx->has_b_frames, sps->num_reorder_frames);
1346
    }
1347
1348
371103
    for (i = 0; 1; i++) {
1349

371103
        if(i == MAX_DELAYED_PIC_COUNT || cur->poc < h->last_pocs[i]){
1350
22670
            if(i)
1351
22670
                h->last_pocs[i-1] = cur->poc;
1352
22670
            break;
1353
348433
        } else if(i) {
1354
325763
            h->last_pocs[i-1]= h->last_pocs[i];
1355
        }
1356
    }
1357
22670
    out_of_order = MAX_DELAYED_PIC_COUNT - i;
1358
22670
    if(   cur->f->pict_type == AV_PICTURE_TYPE_B
1359

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))
1360
12018
        out_of_order = FFMAX(out_of_order, 1);
1361
22670
    if (out_of_order == MAX_DELAYED_PIC_COUNT) {
1362
        av_log(h->avctx, AV_LOG_VERBOSE, "Invalid POC %d<%d\n", cur->poc, h->last_pocs[0]);
1363
        for (i = 1; i < MAX_DELAYED_PIC_COUNT; i++)
1364
            h->last_pocs[i] = INT_MIN;
1365
        h->last_pocs[0] = cur->poc;
1366
        cur->mmco_reset = 1;
1367

22670
    } else if(h->avctx->has_b_frames < out_of_order && !sps->bitstream_restriction_flag){
1368
131
        int loglevel = h->avctx->frame_number > 1 ? AV_LOG_WARNING : AV_LOG_VERBOSE;
1369
131
        av_log(h->avctx, loglevel, "Increasing reorder buffer to %d\n", out_of_order);
1370
131
        h->avctx->has_b_frames = out_of_order;
1371
    }
1372
1373
22670
    pics = 0;
1374
51510
    while (h->delayed_pic[pics])
1375
28840
        pics++;
1376
1377
22670
    av_assert0(pics <= MAX_DELAYED_PIC_COUNT);
1378
1379
22670
    h->delayed_pic[pics++] = cur;
1380
22670
    if (cur->reference == 0)
1381
21260
        cur->reference = DELAYED_PIC_REF;
1382
1383
22670
    out     = h->delayed_pic[0];
1384
22670
    out_idx = 0;
1385
48615
    for (i = 1; h->delayed_pic[i] &&
1386
26391
                !h->delayed_pic[i]->f->key_frame &&
1387
26032
                !h->delayed_pic[i]->mmco_reset;
1388
25945
         i++)
1389
25945
        if (h->delayed_pic[i]->poc < out->poc) {
1390
9615
            out     = h->delayed_pic[i];
1391
9615
            out_idx = i;
1392
        }
1393
22670
    if (h->avctx->has_b_frames == 0 &&
1394

9631
        (h->delayed_pic[0]->f->key_frame || h->delayed_pic[0]->mmco_reset))
1395
779
        h->next_outputed_poc = INT_MIN;
1396
22670
    out_of_order = out->poc < h->next_outputed_poc;
1397
1398

22670
    if (out_of_order || pics > h->avctx->has_b_frames) {
1399
22204
        out->reference &= ~DELAYED_PIC_REF;
1400
58549
        for (i = out_idx; h->delayed_pic[i]; i++)
1401
36345
            h->delayed_pic[i] = h->delayed_pic[i + 1];
1402
    }
1403

22670
    if (!out_of_order && pics > h->avctx->has_b_frames) {
1404
22103
        h->next_output_pic = out;
1405


22103
        if (out_idx == 0 && h->delayed_pic[0] && (h->delayed_pic[0]->f->key_frame || h->delayed_pic[0]->mmco_reset)) {
1406
86
            h->next_outputed_poc = INT_MIN;
1407
        } else
1408
22017
            h->next_outputed_poc = out->poc;
1409
1410
22103
        if (out->recovered) {
1411
            // We have reached an recovery point and all frames after it in
1412
            // display order are "recovered".
1413
22028
            h->frame_recovered |= FRAME_RECOVERED_SEI;
1414
        }
1415
22103
        out->recovered |= !!(h->frame_recovered & FRAME_RECOVERED_SEI);
1416
1417
22103
        if (!out->recovered) {
1418
70
            if (!(h->avctx->flags & AV_CODEC_FLAG_OUTPUT_CORRUPT) &&
1419
70
                !(h->avctx->flags2 & AV_CODEC_FLAG2_SHOW_ALL)) {
1420
70
                h->next_output_pic = NULL;
1421
            } else {
1422
                out->f->flags |= AV_FRAME_FLAG_CORRUPT;
1423
            }
1424
        }
1425
    } else {
1426
567
        av_log(h->avctx, AV_LOG_DEBUG, "no picture %s\n", out_of_order ? "ooo" : "");
1427
    }
1428
1429
22670
    return 0;
1430
}
1431
1432
/* This function is called right after decoding the slice header for a first
1433
 * slice in a field (or a frame). It decides whether we are decoding a new frame
1434
 * or a second field in a pair and does the necessary setup.
1435
 */
1436
25907
static int h264_field_start(H264Context *h, const H264SliceContext *sl,
1437
                            const H2645NAL *nal, int first_slice)
1438
{
1439
    int i;
1440
    const SPS *sps;
1441
1442
    int last_pic_structure, last_pic_droppable, ret;
1443
1444
25907
    ret = h264_init_ps(h, sl, first_slice);
1445
25907
    if (ret < 0)
1446
        return ret;
1447
1448
25907
    sps = h->ps.sps;
1449
1450

25907
    if (sps && sps->bitstream_restriction_flag &&
1451
3642
        h->avctx->has_b_frames < sps->num_reorder_frames) {
1452
20
        h->avctx->has_b_frames = sps->num_reorder_frames;
1453
    }
1454
1455
25907
    last_pic_droppable   = h->droppable;
1456
25907
    last_pic_structure   = h->picture_structure;
1457
25907
    h->droppable         = (nal->ref_idc == 0);
1458
25907
    h->picture_structure = sl->picture_structure;
1459
1460
25907
    h->poc.frame_num        = sl->frame_num;
1461
25907
    h->poc.poc_lsb          = sl->poc_lsb;
1462
25907
    h->poc.delta_poc_bottom = sl->delta_poc_bottom;
1463
25907
    h->poc.delta_poc[0]     = sl->delta_poc[0];
1464
25907
    h->poc.delta_poc[1]     = sl->delta_poc[1];
1465
1466
    /* Shorten frame num gaps so we don't have to allocate reference
1467
     * frames just to throw them away */
1468
25907
    if (h->poc.frame_num != h->poc.prev_frame_num) {
1469
14588
        int unwrap_prev_frame_num = h->poc.prev_frame_num;
1470
14588
        int max_frame_num         = 1 << sps->log2_max_frame_num;
1471
1472
14588
        if (unwrap_prev_frame_num > h->poc.frame_num)
1473
145
            unwrap_prev_frame_num -= max_frame_num;
1474
1475
14588
        if ((h->poc.frame_num - unwrap_prev_frame_num) > sps->ref_frame_count) {
1476
66
            unwrap_prev_frame_num = (h->poc.frame_num - sps->ref_frame_count) - 1;
1477
66
            if (unwrap_prev_frame_num < 0)
1478
2
                unwrap_prev_frame_num += max_frame_num;
1479
1480
66
            h->poc.prev_frame_num = unwrap_prev_frame_num;
1481
        }
1482
    }
1483
1484
    /* See if we have a decoded first field looking for a pair...
1485
     * Here, we're using that to see if we should mark previously
1486
     * decode frames as "finished".
1487
     * We have to do that before the "dummy" in-between frame allocation,
1488
     * since that can modify h->cur_pic_ptr. */
1489
25907
    if (h->first_field) {
1490
3233
        int last_field = last_pic_structure == PICT_BOTTOM_FIELD;
1491
3233
        av_assert0(h->cur_pic_ptr);
1492
3233
        av_assert0(h->cur_pic_ptr->f->buf[0]);
1493
        assert(h->cur_pic_ptr->reference != DELAYED_PIC_REF);
1494
1495
        /* Mark old field/frame as completed */
1496
3233
        if (h->cur_pic_ptr->tf.owner[last_field] == h->avctx) {
1497
3233
            ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, last_field);
1498
        }
1499
1500
        /* figure out if we have a complementary field pair */
1501

3233
        if (!FIELD_PICTURE(h) || h->picture_structure == last_pic_structure) {
1502
            /* Previous field is unmatched. Don't display it, but let it
1503
             * remain for reference if marked as such. */
1504
            if (last_pic_structure != PICT_FRAME) {
1505
                ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX,
1506
                                          last_pic_structure == PICT_TOP_FIELD);
1507
            }
1508
        } else {
1509
3233
            if (h->cur_pic_ptr->frame_num != h->poc.frame_num) {
1510
                /* This and previous field were reference, but had
1511
                 * different frame_nums. Consider this field first in
1512
                 * pair. Throw away previous field except for reference
1513
                 * purposes. */
1514
                if (last_pic_structure != PICT_FRAME) {
1515
                    ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX,
1516
                                              last_pic_structure == PICT_TOP_FIELD);
1517
                }
1518
            } else {
1519
                /* Second field in complementary pair */
1520

3233
                if (!((last_pic_structure   == PICT_TOP_FIELD &&
1521
3225
                       h->picture_structure == PICT_BOTTOM_FIELD) ||
1522
8
                      (last_pic_structure   == PICT_BOTTOM_FIELD &&
1523
8
                       h->picture_structure == PICT_TOP_FIELD))) {
1524
                    av_log(h->avctx, AV_LOG_ERROR,
1525
                           "Invalid field mode combination %d/%d\n",
1526
                           last_pic_structure, h->picture_structure);
1527
                    h->picture_structure = last_pic_structure;
1528
                    h->droppable         = last_pic_droppable;
1529
                    return AVERROR_INVALIDDATA;
1530
3233
                } else if (last_pic_droppable != h->droppable) {
1531
                    avpriv_request_sample(h->avctx,
1532
                                          "Found reference and non-reference fields in the same frame, which");
1533
                    h->picture_structure = last_pic_structure;
1534
                    h->droppable         = last_pic_droppable;
1535
                    return AVERROR_PATCHWELCOME;
1536
                }
1537
            }
1538
        }
1539
    }
1540
1541

26579
    while (h->poc.frame_num != h->poc.prev_frame_num && !h->first_field &&
1542
15260
           h->poc.frame_num != (h->poc.prev_frame_num + 1) % (1 << sps->log2_max_frame_num)) {
1543
672
        H264Picture *prev = h->short_ref_count ? h->short_ref[0] : NULL;
1544
672
        av_log(h->avctx, AV_LOG_DEBUG, "Frame num gap %d %d\n",
1545
               h->poc.frame_num, h->poc.prev_frame_num);
1546
672
        if (!sps->gaps_in_frame_num_allowed_flag)
1547
1615
            for(i=0; i<FF_ARRAY_ELEMS(h->last_pocs); i++)
1548
1520
                h->last_pocs[i] = INT_MIN;
1549
672
        ret = h264_frame_start(h);
1550
672
        if (ret < 0) {
1551
            h->first_field = 0;
1552
            return ret;
1553
        }
1554
1555
672
        h->poc.prev_frame_num++;
1556
672
        h->poc.prev_frame_num        %= 1 << sps->log2_max_frame_num;
1557
672
        h->cur_pic_ptr->frame_num = h->poc.prev_frame_num;
1558
672
        h->cur_pic_ptr->invalid_gap = !sps->gaps_in_frame_num_allowed_flag;
1559
672
        ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, 0);
1560
672
        ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, 1);
1561
1562
672
        h->explicit_ref_marking = 0;
1563
672
        ret = ff_h264_execute_ref_pic_marking(h);
1564

672
        if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE))
1565
            return ret;
1566
        /* Error concealment: If a ref is missing, copy the previous ref
1567
         * in its place.
1568
         * FIXME: Avoiding a memcpy would be nice, but ref handling makes
1569
         * many assumptions about there being no actual duplicates.
1570
         * FIXME: This does not copy padding for out-of-frame motion
1571
         * vectors.  Given we are concealing a lost frame, this probably
1572
         * is not noticeable by comparison, but it should be fixed. */
1573
672
        if (h->short_ref_count) {
1574
672
            int c[4] = {
1575
672
                1<<(h->ps.sps->bit_depth_luma-1),
1576
672
                1<<(h->ps.sps->bit_depth_chroma-1),
1577
672
                1<<(h->ps.sps->bit_depth_chroma-1),
1578
                -1
1579
            };
1580
1581
672
            if (prev &&
1582
655
                h->short_ref[0]->f->width == prev->f->width &&
1583
655
                h->short_ref[0]->f->height == prev->f->height &&
1584
655
                h->short_ref[0]->f->format == prev->f->format) {
1585
655
                ff_thread_await_progress(&prev->tf, INT_MAX, 0);
1586
655
                if (prev->field_picture)
1587
14
                    ff_thread_await_progress(&prev->tf, INT_MAX, 1);
1588
655
                av_image_copy(h->short_ref[0]->f->data,
1589
655
                              h->short_ref[0]->f->linesize,
1590
655
                              (const uint8_t **)prev->f->data,
1591
655
                              prev->f->linesize,
1592
655
                              prev->f->format,
1593
655
                              prev->f->width,
1594
655
                              prev->f->height);
1595
655
                h->short_ref[0]->poc = prev->poc + 2;
1596

17
            } else if (!h->frame_recovered && !h->avctx->hwaccel)
1597
14
                ff_color_frame(h->short_ref[0]->f, c);
1598
672
            h->short_ref[0]->frame_num = h->poc.prev_frame_num;
1599
        }
1600
    }
1601
1602
    /* See if we have a decoded first field looking for a pair...
1603
     * We're using that to see whether to continue decoding in that
1604
     * frame, or to allocate a new one. */
1605
25907
    if (h->first_field) {
1606
3233
        av_assert0(h->cur_pic_ptr);
1607
3233
        av_assert0(h->cur_pic_ptr->f->buf[0]);
1608
        assert(h->cur_pic_ptr->reference != DELAYED_PIC_REF);
1609
1610
        /* figure out if we have a complementary field pair */
1611

3233
        if (!FIELD_PICTURE(h) || h->picture_structure == last_pic_structure) {
1612
            /* Previous field is unmatched. Don't display it, but let it
1613
             * remain for reference if marked as such. */
1614
            h->missing_fields ++;
1615
            h->cur_pic_ptr = NULL;
1616
            h->first_field = FIELD_PICTURE(h);
1617
        } else {
1618
3233
            h->missing_fields = 0;
1619
3233
            if (h->cur_pic_ptr->frame_num != h->poc.frame_num) {
1620
                ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX,
1621
                                          h->picture_structure==PICT_BOTTOM_FIELD);
1622
                /* This and the previous field had different frame_nums.
1623
                 * Consider this field first in pair. Throw away previous
1624
                 * one except for reference purposes. */
1625
                h->first_field = 1;
1626
                h->cur_pic_ptr = NULL;
1627
3233
            } else if (h->cur_pic_ptr->reference & DELAYED_PIC_REF) {
1628
                /* This frame was already output, we cannot draw into it
1629
                 * anymore.
1630
                 */
1631
                h->first_field = 1;
1632
                h->cur_pic_ptr = NULL;
1633
            } else {
1634
                /* Second field in complementary pair */
1635
3233
                h->first_field = 0;
1636
            }
1637
        }
1638
    } else {
1639
        /* Frame or first field in a potentially complementary pair */
1640
22674
        h->first_field = FIELD_PICTURE(h);
1641
    }
1642
1643

25907
    if (!FIELD_PICTURE(h) || h->first_field) {
1644
22674
        if (h264_frame_start(h) < 0) {
1645
            h->first_field = 0;
1646
            return AVERROR_INVALIDDATA;
1647
        }
1648
    } else {
1649
3233
        int field = h->picture_structure == PICT_BOTTOM_FIELD;
1650
3233
        release_unused_pictures(h, 0);
1651
3233
        h->cur_pic_ptr->tf.owner[field] = h->avctx;
1652
    }
1653
    /* Some macroblocks can be accessed before they're available in case
1654
    * of lost slices, MBAFF or threading. */
1655
25907
    if (FIELD_PICTURE(h)) {
1656
157329
        for(i = (h->picture_structure == PICT_BOTTOM_FIELD); i<h->mb_height; i++)
1657
150859
            memset(h->slice_table + i*h->mb_stride, -1, (h->mb_stride - (i+1==h->mb_height)) * sizeof(*h->slice_table));
1658
    } else {
1659
19437
        memset(h->slice_table, -1,
1660
19437
            (h->mb_height * h->mb_stride - 1) * sizeof(*h->slice_table));
1661
    }
1662
1663
25907
    ret = ff_h264_init_poc(h->cur_pic_ptr->field_poc, &h->cur_pic_ptr->poc,
1664
                     h->ps.sps, &h->poc, h->picture_structure, nal->ref_idc);
1665
25907
    if (ret < 0)
1666
        return ret;
1667
1668
25907
    memcpy(h->mmco, sl->mmco, sl->nb_mmco * sizeof(*h->mmco));
1669
25907
    h->nb_mmco = sl->nb_mmco;
1670
25907
    h->explicit_ref_marking = sl->explicit_ref_marking;
1671
1672
25907
    h->picture_idr = nal->type == H264_NAL_IDR_SLICE;
1673
1674
25907
    if (h->sei.recovery_point.recovery_frame_cnt >= 0) {
1675
46
        const int sei_recovery_frame_cnt = h->sei.recovery_point.recovery_frame_cnt;
1676
1677

46
        if (h->poc.frame_num != sei_recovery_frame_cnt || sl->slice_type_nos != AV_PICTURE_TYPE_I)
1678
33
            h->valid_recovery_point = 1;
1679
1680
46
        if (   h->recovery_frame < 0
1681
1
            || av_mod_uintp2(h->recovery_frame - h->poc.frame_num, h->ps.sps->log2_max_frame_num) > sei_recovery_frame_cnt) {
1682
45
            h->recovery_frame = av_mod_uintp2(h->poc.frame_num + sei_recovery_frame_cnt, h->ps.sps->log2_max_frame_num);
1683
1684
45
            if (!h->valid_recovery_point)
1685
6
                h->recovery_frame = h->poc.frame_num;
1686
        }
1687
    }
1688
1689
25907
    h->cur_pic_ptr->f->key_frame |= (nal->type == H264_NAL_IDR_SLICE);
1690
1691
25907
    if (nal->type == H264_NAL_IDR_SLICE ||
1692

24898
        (h->recovery_frame == h->poc.frame_num && nal->ref_idc)) {
1693
1042
        h->recovery_frame         = -1;
1694
1042
        h->cur_pic_ptr->recovered = 1;
1695
    }
1696
    // If we have an IDR, all frames after it in decoded order are
1697
    // "recovered".
1698
25907
    if (nal->type == H264_NAL_IDR_SLICE)
1699
1009
        h->frame_recovered |= FRAME_RECOVERED_IDR;
1700
#if 1
1701
25907
    h->cur_pic_ptr->recovered |= h->frame_recovered;
1702
#else
1703
    h->cur_pic_ptr->recovered |= !!(h->frame_recovered & FRAME_RECOVERED_IDR);
1704
#endif
1705
1706
    /* Set the frame properties/side data. Only done for the second field in
1707
     * field coded frames, since some SEI information is present for each field
1708
     * and is merged by the SEI parsing code. */
1709

25907
    if (!FIELD_PICTURE(h) || !h->first_field || h->missing_fields > 1) {
1710
22670
        ret = h264_export_frame_props(h);
1711
22670
        if (ret < 0)
1712
            return ret;
1713
1714
22670
        ret = h264_select_output_frame(h);
1715
22670
        if (ret < 0)
1716
            return ret;
1717
    }
1718
1719
25907
    return 0;
1720
}
1721
1722
34469
static int h264_slice_header_parse(const H264Context *h, H264SliceContext *sl,
1723
                                   const H2645NAL *nal)
1724
{
1725
    const SPS *sps;
1726
    const PPS *pps;
1727
    int ret;
1728
    unsigned int slice_type, tmp, i;
1729
    int field_pic_flag, bottom_field_flag;
1730

34469
    int first_slice = sl == h->slice_ctx && !h->current_slice;
1731
    int picture_structure;
1732
1733
34469
    if (first_slice)
1734
26162
        av_assert0(!h->setup_finished);
1735
1736
34469
    sl->first_mb_addr = get_ue_golomb_long(&sl->gb);
1737
1738
34469
    slice_type = get_ue_golomb_31(&sl->gb);
1739
34469
    if (slice_type > 9) {
1740
        av_log(h->avctx, AV_LOG_ERROR,
1741
               "slice type %d too large at %d\n",
1742
               slice_type, sl->first_mb_addr);
1743
        return AVERROR_INVALIDDATA;
1744
    }
1745
34469
    if (slice_type > 4) {
1746
21744
        slice_type -= 5;
1747
21744
        sl->slice_type_fixed = 1;
1748
    } else
1749
12725
        sl->slice_type_fixed = 0;
1750
1751
34469
    slice_type         = ff_h264_golomb_to_pict_type[slice_type];
1752
34469
    sl->slice_type     = slice_type;
1753
34469
    sl->slice_type_nos = slice_type & 3;
1754
1755
34469
    if (nal->type  == H264_NAL_IDR_SLICE &&
1756
2073
        sl->slice_type_nos != AV_PICTURE_TYPE_I) {
1757
        av_log(h->avctx, AV_LOG_ERROR, "A non-intra slice in an IDR NAL unit.\n");
1758
        return AVERROR_INVALIDDATA;
1759
    }
1760
1761
34469
    sl->pps_id = get_ue_golomb(&sl->gb);
1762
34469
    if (sl->pps_id >= MAX_PPS_COUNT) {
1763
        av_log(h->avctx, AV_LOG_ERROR, "pps_id %u out of range\n", sl->pps_id);
1764
        return AVERROR_INVALIDDATA;
1765
    }
1766
34469
    if (!h->ps.pps_list[sl->pps_id]) {
1767
377
        av_log(h->avctx, AV_LOG_ERROR,
1768
               "non-existing PPS %u referenced\n",
1769
               sl->pps_id);
1770
377
        return AVERROR_INVALIDDATA;
1771
    }
1772
34092
    pps = (const PPS*)h->ps.pps_list[sl->pps_id]->data;
1773
34092
    sps = pps->sps;
1774
1775
34092
    sl->frame_num = get_bits(&sl->gb, sps->log2_max_frame_num);
1776
34092
    if (!first_slice) {
1777
8298
        if (h->poc.frame_num != sl->frame_num) {
1778
            av_log(h->avctx, AV_LOG_ERROR, "Frame num change from %d to %d\n",
1779
                   h->poc.frame_num, sl->frame_num);
1780
            return AVERROR_INVALIDDATA;
1781
        }
1782
    }
1783
1784
34092
    sl->mb_mbaff       = 0;
1785
1786
34092
    if (sps->frame_mbs_only_flag) {
1787
20350
        picture_structure = PICT_FRAME;
1788
    } else {
1789

13742
        if (!sps->direct_8x8_inference_flag && slice_type == AV_PICTURE_TYPE_B) {
1790
            av_log(h->avctx, AV_LOG_ERROR, "This stream was generated by a broken encoder, invalid 8x8 inference\n");
1791
            return -1;
1792
        }
1793
13742
        field_pic_flag = get_bits1(&sl->gb);
1794
13742
        if (field_pic_flag) {
1795
8477
            bottom_field_flag = get_bits1(&sl->gb);
1796
8477
            picture_structure = PICT_TOP_FIELD + bottom_field_flag;
1797
        } else {
1798
5265
            picture_structure = PICT_FRAME;
1799
        }
1800
    }
1801
34092
    sl->picture_structure      = picture_structure;
1802
34092
    sl->mb_field_decoding_flag = picture_structure != PICT_FRAME;
1803
1804
34092
    if (picture_structure == PICT_FRAME) {
1805
25615
        sl->curr_pic_num = sl->frame_num;
1806
25615
        sl->max_pic_num  = 1 << sps->log2_max_frame_num;
1807
    } else {
1808
8477
        sl->curr_pic_num = 2 * sl->frame_num + 1;
1809
8477
        sl->max_pic_num  = 1 << (sps->log2_max_frame_num + 1);
1810
    }
1811
1812
34092
    if (nal->type == H264_NAL_IDR_SLICE)
1813
2068
        get_ue_golomb_long(&sl->gb); /* idr_pic_id */
1814
1815
34092
    if (sps->poc_type == 0) {
1816
26924
        sl->poc_lsb = get_bits(&sl->gb, sps->log2_max_poc_lsb);
1817
1818

26924
        if (pps->pic_order_present == 1 && picture_structure == PICT_FRAME)
1819
5830
            sl->delta_poc_bottom = get_se_golomb(&sl->gb);
1820
    }
1821
1822

34092
    if (sps->poc_type == 1 && !sps->delta_pic_order_always_zero_flag) {
1823
2848
        sl->delta_poc[0] = get_se_golomb(&sl->gb);
1824
1825

2848
        if (pps->pic_order_present == 1 && picture_structure == PICT_FRAME)
1826
453
            sl->delta_poc[1] = get_se_golomb(&sl->gb);
1827
    }
1828
1829
34092
    sl->redundant_pic_count = 0;
1830
34092
    if (pps->redundant_pic_cnt_present)
1831
        sl->redundant_pic_count = get_ue_golomb(&sl->gb);
1832
1833
34092
    if (sl->slice_type_nos == AV_PICTURE_TYPE_B)
1834
11927
        sl->direct_spatial_mv_pred = get_bits1(&sl->gb);
1835
1836
34092
    ret = ff_h264_parse_ref_count(&sl->list_count, sl->ref_count,
1837
                                  &sl->gb, pps, sl->slice_type_nos,
1838
34092
                                  picture_structure, h->avctx);
1839
34092
    if (ret < 0)
1840
        return ret;
1841
1842
34092
    if (sl->slice_type_nos != AV_PICTURE_TYPE_I) {
1843
29872
       ret = ff_h264_decode_ref_pic_list_reordering(sl, h->avctx);
1844
29872
       if (ret < 0) {
1845
           sl->ref_count[1] = sl->ref_count[0] = 0;
1846
           return ret;
1847
       }
1848
    }
1849
1850
34092
    sl->pwt.use_weight = 0;
1851
102276
    for (i = 0; i < 2; i++) {
1852
68184
        sl->pwt.luma_weight_flag[i]   = 0;
1853
68184
        sl->pwt.chroma_weight_flag[i] = 0;
1854
    }
1855

34092
    if ((pps->weighted_pred && sl->slice_type_nos == AV_PICTURE_TYPE_P) ||
1856
32772
        (pps->weighted_bipred_idc == 1 &&
1857
278
         sl->slice_type_nos == AV_PICTURE_TYPE_B)) {
1858
1598
        ret = ff_h264_pred_weight_table(&sl->gb, sps, sl->ref_count,
1859
                                  sl->slice_type_nos, &sl->pwt,
1860
1598
                                  picture_structure, h->avctx);
1861
1598
        if (ret < 0)
1862
            return ret;
1863
    }
1864
1865
34092
    sl->explicit_ref_marking = 0;
1866
34092
    if (nal->ref_idc) {
1867
22747
        ret = ff_h264_decode_ref_pic_marking(sl, &sl->gb, nal, h->avctx);
1868

22747
        if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE))
1869
            return AVERROR_INVALIDDATA;
1870
    }
1871
1872

34092
    if (sl->slice_type_nos != AV_PICTURE_TYPE_I && pps->cabac) {
1873
15727
        tmp = get_ue_golomb_31(&sl->gb);
1874
15727
        if (tmp > 2) {
1875
            av_log(h->avctx, AV_LOG_ERROR, "cabac_init_idc %u overflow\n", tmp);
1876
            return AVERROR_INVALIDDATA;
1877
        }
1878
15727
        sl->cabac_init_idc = tmp;
1879
    }
1880
1881
34092
    sl->last_qscale_diff = 0;
1882
34092
    tmp = pps->init_qp + (unsigned)get_se_golomb(&sl->gb);
1883
34092
    if (tmp > 51 + 6 * (sps->bit_depth_luma - 8)) {
1884
        av_log(h->avctx, AV_LOG_ERROR, "QP %u out of range\n", tmp);
1885
        return AVERROR_INVALIDDATA;
1886
    }
1887
34092
    sl->qscale       = tmp;
1888
34092
    sl->chroma_qp[0] = get_chroma_qp(pps, 0, sl->qscale);
1889
34092
    sl->chroma_qp[1] = get_chroma_qp(pps, 1, sl->qscale);
1890
    // FIXME qscale / qp ... stuff
1891
34092
    if (sl->slice_type == AV_PICTURE_TYPE_SP)
1892
        get_bits1(&sl->gb); /* sp_for_switch_flag */
1893
34092
    if (sl->slice_type == AV_PICTURE_TYPE_SP ||
1894
34092
        sl->slice_type == AV_PICTURE_TYPE_SI)
1895
        get_se_golomb(&sl->gb); /* slice_qs_delta */
1896
1897
34092
    sl->deblocking_filter     = 1;
1898
34092
    sl->slice_alpha_c0_offset = 0;
1899
34092
    sl->slice_beta_offset     = 0;
1900
34092
    if (pps->deblocking_filter_parameters_present) {
1901
19835
        tmp = get_ue_golomb_31(&sl->gb);
1902
19835
        if (tmp > 2) {
1903
            av_log(h->avctx, AV_LOG_ERROR,
1904
                   "deblocking_filter_idc %u out of range\n", tmp);
1905
            return AVERROR_INVALIDDATA;
1906
        }
1907
19835
        sl->deblocking_filter = tmp;
1908
19835
        if (sl->deblocking_filter < 2)
1909
17334
            sl->deblocking_filter ^= 1;  // 1<->0
1910
1911
19835
        if (sl->deblocking_filter) {
1912
12900
            int slice_alpha_c0_offset_div2 = get_se_golomb(&sl->gb);
1913
12900
            int slice_beta_offset_div2     = get_se_golomb(&sl->gb);
1914

12900
            if (slice_alpha_c0_offset_div2 >  6 ||
1915
12900
                slice_alpha_c0_offset_div2 < -6 ||
1916
12900
                slice_beta_offset_div2 >  6     ||
1917
                slice_beta_offset_div2 < -6) {
1918
                av_log(h->avctx, AV_LOG_ERROR,
1919
                       "deblocking filter parameters %d %d out of range\n",
1920
                       slice_alpha_c0_offset_div2, slice_beta_offset_div2);
1921
                return AVERROR_INVALIDDATA;
1922
            }
1923
12900
            sl->slice_alpha_c0_offset = slice_alpha_c0_offset_div2 * 2;
1924
12900
            sl->slice_beta_offset     = slice_beta_offset_div2 * 2;
1925
        }
1926
    }
1927
1928
34092
    return 0;
1929
}
1930
1931
/* do all the per-slice initialization needed before we can start decoding the
1932
 * actual MBs */
1933
34012
static int h264_slice_init(H264Context *h, H264SliceContext *sl,
1934
                           const H2645NAL *nal)
1935
{
1936
34012
    int i, j, ret = 0;
1937
1938

34012
    if (h->picture_idr && nal->type != H264_NAL_IDR_SLICE) {
1939
        av_log(h->avctx, AV_LOG_ERROR, "Invalid mix of IDR and non-IDR slices\n");
1940
        return AVERROR_INVALIDDATA;
1941
    }
1942
1943
    av_assert1(h->mb_num == h->mb_width * h->mb_height);
1944

34012
    if (sl->first_mb_addr << FIELD_OR_MBAFF_PICTURE(h) >= h->mb_num ||
1945
34012
        sl->first_mb_addr >= h->mb_num) {
1946
        av_log(h->avctx, AV_LOG_ERROR, "first_mb_in_slice overflow\n");
1947
        return AVERROR_INVALIDDATA;
1948
    }
1949
34012
    sl->resync_mb_x = sl->mb_x =  sl->first_mb_addr % h->mb_width;
1950
68024
    sl->resync_mb_y = sl->mb_y = (sl->first_mb_addr / h->mb_width) <<
1951

34012
                                 FIELD_OR_MBAFF_PICTURE(h);
1952
34012
    if (h->picture_structure == PICT_BOTTOM_FIELD)
1953
4196
        sl->resync_mb_y = sl->mb_y = sl->mb_y + 1;
1954
    av_assert1(sl->mb_y < h->mb_height);
1955
1956
34012
    ret = ff_h264_build_ref_list(h, sl);
1957
34012
    if (ret < 0)
1958
        return ret;
1959
1960
34012
    if (h->ps.pps->weighted_bipred_idc == 2 &&
1961
2421
        sl->slice_type_nos == AV_PICTURE_TYPE_B) {
1962
1589
        implicit_weight_table(h, sl, -1);
1963
1589
        if (FRAME_MBAFF(h)) {
1964
855
            implicit_weight_table(h, sl, 0);
1965
855
            implicit_weight_table(h, sl, 1);
1966
        }
1967
    }
1968
1969

34012
    if (sl->slice_type_nos == AV_PICTURE_TYPE_B && !sl->direct_spatial_mv_pred)
1970
7703
        ff_h264_direct_dist_scale_factor(h, sl);
1971
34012
    if (!h->setup_finished)
1972
34012
        ff_h264_direct_ref_list_init(h, sl);
1973
1974
34012
    if (h->avctx->skip_loop_filter >= AVDISCARD_ALL ||
1975
34012
        (h->avctx->skip_loop_filter >= AVDISCARD_NONKEY &&
1976
         h->nal_unit_type != H264_NAL_IDR_SLICE) ||
1977
34012
        (h->avctx->skip_loop_filter >= AVDISCARD_NONINTRA &&
1978
         sl->slice_type_nos != AV_PICTURE_TYPE_I) ||
1979
34012
        (h->avctx->skip_loop_filter >= AVDISCARD_BIDIR  &&
1980
         sl->slice_type_nos == AV_PICTURE_TYPE_B) ||
1981
34012
        (h->avctx->skip_loop_filter >= AVDISCARD_NONREF &&
1982
         nal->ref_idc == 0))
1983
        sl->deblocking_filter = 0;
1984
1985

34012
    if (sl->deblocking_filter == 1 && h->nb_slice_ctx > 1) {
1986
        if (h->avctx->flags2 & AV_CODEC_FLAG2_FAST) {
1987
            /* Cheat slightly for speed:
1988
             * Do not bother to deblock across slices. */
1989
            sl->deblocking_filter = 2;
1990
        } else {
1991
            h->postpone_filter = 1;
1992
        }
1993
    }
1994
34012
    sl->qp_thresh = 15 -
1995
34012
                   FFMIN(sl->slice_alpha_c0_offset, sl->slice_beta_offset) -
1996
34012
                   FFMAX3(0,
1997
                          h->ps.pps->chroma_qp_index_offset[0],
1998
34012
                          h->ps.pps->chroma_qp_index_offset[1]) +
1999
34012
                   6 * (h->ps.sps->bit_depth_luma - 8);
2000
2001
34012
    sl->slice_num       = ++h->current_slice;
2002
2003
34012
    if (sl->slice_num)
2004
34012
        h->slice_row[(sl->slice_num-1)&(MAX_SLICES-1)]= sl->resync_mb_y;
2005
34012
    if (   h->slice_row[sl->slice_num&(MAX_SLICES-1)] + 3 >= sl->resync_mb_y
2006
31344
        && h->slice_row[sl->slice_num&(MAX_SLICES-1)] <= sl->resync_mb_y
2007
23531
        && sl->slice_num >= MAX_SLICES) {
2008
        //in case of ASO this check needs to be updated depending on how we decide to assign slice numbers in this case
2009
        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);
2010
    }
2011
2012
102036
    for (j = 0; j < 2; j++) {
2013
        int id_list[16];
2014
68024
        int *ref2frm = h->ref2frm[sl->slice_num & (MAX_SLICES - 1)][j];
2015
1156408
        for (i = 0; i < 16; i++) {
2016
1088384
            id_list[i] = 60;
2017

1088384
            if (j < sl->list_count && i < sl->ref_count[j] &&
2018
133852
                sl->ref_list[j][i].parent->f->buf[0]) {
2019
                int k;
2020
133852
                AVBuffer *buf = sl->ref_list[j][i].parent->f->buf[0]->buffer;
2021
461407
                for (k = 0; k < h->short_ref_count; k++)
2022
459458
                    if (h->short_ref[k]->f->buf[0]->buffer == buf) {
2023
131903
                        id_list[i] = k;
2024
131903
                        break;
2025
                    }
2026
143968
                for (k = 0; k < h->long_ref_count; k++)
2027

11870
                    if (h->long_ref[k] && h->long_ref[k]->f->buf[0]->buffer == buf) {
2028
1754
                        id_list[i] = h->short_ref_count + k;
2029
1754
                        break;
2030
                    }
2031
            }
2032
        }
2033
2034
68024
        ref2frm[0] =
2035
68024
        ref2frm[1] = -1;
2036
1156408
        for (i = 0; i < 16; i++)
2037
1088384
            ref2frm[i + 2] = 4 * id_list[i] + (sl->ref_list[j][i].reference & 3);
2038
68024
        ref2frm[18 + 0] =
2039
68024
        ref2frm[18 + 1] = -1;
2040
2244792
        for (i = 16; i < 48; i++)
2041
2176768
            ref2frm[i + 4] = 4 * id_list[(i - 16) >> 1] +
2042
2176768
                             (sl->ref_list[j][i].reference & 3);
2043
    }
2044
2045
34012
    if (h->avctx->debug & FF_DEBUG_PICT_INFO) {
2046
        av_log(h->avctx, AV_LOG_DEBUG,
2047
               "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",
2048
               sl->slice_num,
2049
               (h->picture_structure == PICT_FRAME ? "F" : h->picture_structure == PICT_TOP_FIELD ? "T" : "B"),
2050
               sl->mb_y * h->mb_width + sl->mb_x,
2051
               av_get_picture_type_char(sl->slice_type),
2052
               sl->slice_type_fixed ? " fix" : "",
2053
               nal->type == H264_NAL_IDR_SLICE ? " IDR" : "",
2054
               h->poc.frame_num,
2055
               h->cur_pic_ptr->field_poc[0],
2056
               h->cur_pic_ptr->field_poc[1],
2057
               sl->ref_count[0], sl->ref_count[1],
2058
               sl->qscale,
2059
               sl->deblocking_filter,
2060
               sl->slice_alpha_c0_offset, sl->slice_beta_offset,
2061
               sl->pwt.use_weight,
2062
               sl->pwt.use_weight == 1 && sl->pwt.use_weight_chroma ? "c" : "",
2063
               sl->slice_type == AV_PICTURE_TYPE_B ? (sl->direct_spatial_mv_pred ? "SPAT" : "TEMP") : "");
2064
    }
2065
2066
34012
    return 0;
2067
}
2068
2069
34469
int ff_h264_queue_decode_slice(H264Context *h, const H2645NAL *nal)
2070
{
2071
34469
    H264SliceContext *sl = h->slice_ctx + h->nb_slice_ctx_queued;
2072

34469
    int first_slice = sl == h->slice_ctx && !h->current_slice;
2073
    int ret;
2074
2075
34469
    sl->gb = nal->gb;
2076
2077
34469
    ret = h264_slice_header_parse(h, sl, nal);
2078
34469
    if (ret < 0)
2079
377
        return ret;
2080
2081
    // discard redundant pictures
2082
34092
    if (sl->redundant_pic_count > 0) {
2083
        sl->ref_count[0] = sl->ref_count[1] = 0;
2084
        return 0;
2085
    }
2086
2087

34092
    if (sl->first_mb_addr == 0 || !h->current_slice) {
2088
25987
        if (h->setup_finished) {
2089
            av_log(h->avctx, AV_LOG_ERROR, "Too many fields\n");
2090
            return AVERROR_INVALIDDATA;
2091
        }
2092
    }
2093
2094
34092
    if (sl->first_mb_addr == 0) { // FIXME better field boundary detection
2095
25987
        if (h->current_slice) {
2096
            // this slice starts a new field
2097
            // first decode any pending queued slices
2098
193
            if (h->nb_slice_ctx_queued) {
2099
                H264SliceContext tmp_ctx;
2100
2101
                ret = ff_h264_execute_decode_slices(h);
2102
                if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE))
2103
                    return ret;
2104
2105
                memcpy(&tmp_ctx, h->slice_ctx, sizeof(tmp_ctx));
2106
                memcpy(h->slice_ctx, sl, sizeof(tmp_ctx));
2107
                memcpy(sl, &tmp_ctx, sizeof(tmp_ctx));
2108
                sl = h->slice_ctx;
2109
            }
2110
2111

193
            if (h->cur_pic_ptr && FIELD_PICTURE(h) && h->first_field) {
2112
193
                ret = ff_h264_field_end(h, h->slice_ctx, 1);
2113
193
                if (ret < 0)
2114
                    return ret;
2115
            } else if (h->cur_pic_ptr && !FIELD_PICTURE(h) && !h->first_field && h->nal_unit_type  == H264_NAL_IDR_SLICE) {
2116
                av_log(h, AV_LOG_WARNING, "Broken frame packetizing\n");
2117
                ret = ff_h264_field_end(h, h->slice_ctx, 1);
2118
                ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, 0);
2119
                ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, 1);
2120
                h->cur_pic_ptr = NULL;
2121
                if (ret < 0)
2122
                    return ret;
2123
            } else
2124
                return AVERROR_INVALIDDATA;
2125
        }
2126
2127
25987
        if (!h->first_field) {
2128

22754
            if (h->cur_pic_ptr && !h->droppable) {
2129
299
                ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX,
2130
299
                                          h->picture_structure == PICT_BOTTOM_FIELD);
2131
            }
2132
22754
            h->cur_pic_ptr = NULL;
2133
        }
2134
    }
2135
2136
34092
    if (!h->current_slice)
2137
25987
        av_assert0(sl == h->slice_ctx);
2138
2139

34092
    if (h->current_slice == 0 && !h->first_field) {
2140
22754
        if (
2141

22754
            (h->avctx->skip_frame >= AVDISCARD_NONREF && !h->nal_ref_idc) ||
2142

22754
            (h->avctx->skip_frame >= AVDISCARD_BIDIR  && sl->slice_type_nos == AV_PICTURE_TYPE_B) ||
2143

22710
            (h->avctx->skip_frame >= AVDISCARD_NONINTRA && sl->slice_type_nos != AV_PICTURE_TYPE_I) ||
2144

22674
            (h->avctx->skip_frame >= AVDISCARD_NONKEY && h->nal_unit_type != H264_NAL_IDR_SLICE && h->sei.recovery_point.recovery_frame_cnt < 0) ||
2145
22674
            h->avctx->skip_frame >= AVDISCARD_ALL) {
2146
80
            return 0;
2147
        }
2148
    }
2149
2150
34012
    if (!first_slice) {
2151
8298
        const PPS *pps = (const PPS*)h->ps.pps_list[sl->pps_id]->data;
2152
2153
8298
        if (h->ps.pps->sps_id != pps->sps_id ||
2154
8298
            h->ps.pps->transform_8x8_mode != pps->transform_8x8_mode /*||
2155
            (h->setup_finished && h->ps.pps != pps)*/) {
2156
            av_log(h->avctx, AV_LOG_ERROR, "PPS changed between slices\n");
2157
            return AVERROR_INVALIDDATA;
2158
        }
2159
8298
        if (h->ps.sps != pps->sps) {
2160
            av_log(h->avctx, AV_LOG_ERROR,
2161
               "SPS changed in the middle of the frame\n");
2162
            return AVERROR_INVALIDDATA;
2163
        }
2164
    }
2165
2166
34012
    if (h->current_slice == 0) {
2167
25907
        ret = h264_field_start(h, sl, nal, first_slice);
2168
25907
        if (ret < 0)
2169
            return ret;
2170
    } else {
2171
8105
        if (h->picture_structure != sl->picture_structure ||
2172
8105
            h->droppable         != (nal->ref_idc == 0)) {
2173
            av_log(h->avctx, AV_LOG_ERROR,
2174
                   "Changing field mode (%d -> %d) between slices is not allowed\n",
2175
                   h->picture_structure, sl->picture_structure);
2176
            return AVERROR_INVALIDDATA;
2177
8105
        } else if (!h->cur_pic_ptr) {
2178
            av_log(h->avctx, AV_LOG_ERROR,
2179
                   "unset cur_pic_ptr on slice %d\n",
2180
                   h->current_slice + 1);
2181
            return AVERROR_INVALIDDATA;
2182
        }
2183
    }
2184
2185
34012
    ret = h264_slice_init(h, sl, nal);
2186
34012
    if (ret < 0)
2187
        return ret;
2188
2189
34012
    h->nb_slice_ctx_queued++;
2190
2191
34012
    return 0;
2192
}
2193
2194
int ff_h264_get_slice_type(const H264SliceContext *sl)
2195
{
2196
    switch (sl->slice_type) {
2197
    case AV_PICTURE_TYPE_P:
2198
        return 0;
2199
    case AV_PICTURE_TYPE_B:
2200
        return 1;
2201
    case AV_PICTURE_TYPE_I:
2202
        return 2;
2203
    case AV_PICTURE_TYPE_SP:
2204
        return 3;
2205
    case AV_PICTURE_TYPE_SI:
2206
        return 4;
2207
    default:
2208
        return AVERROR_INVALIDDATA;
2209
    }
2210
}
2211
2212
10674266
static av_always_inline void fill_filter_caches_inter(const H264Context *h,
2213
                                                      H264SliceContext *sl,
2214
                                                      int mb_type, int top_xy,
2215
                                                      int left_xy[LEFT_MBS],
2216
                                                      int top_type,
2217
                                                      int left_type[LEFT_MBS],
2218
                                                      int mb_xy, int list)
2219
{
2220
10674266
    int b_stride = h->b_stride;
2221
10674266
    int16_t(*mv_dst)[2] = &sl->mv_cache[list][scan8[0]];
2222
10674266
    int8_t *ref_cache   = &sl->ref_cache[list][scan8[0]];
2223

10674266
    if (IS_INTER(mb_type) || IS_DIRECT(mb_type)) {
2224
10674266
        if (USES_LIST(top_type, list)) {
2225
8459942
            const int b_xy  = h->mb2b_xy[top_xy] + 3 * b_stride;
2226
8459942
            const int b8_xy = 4 * top_xy + 2;
2227
8459942
            const int *ref2frm = &h->ref2frm[h->slice_table[top_xy] & (MAX_SLICES - 1)][list][(MB_MBAFF(sl) ? 20 : 2)];
2228
8459942
            AV_COPY128(mv_dst - 1 * 8, h->cur_pic.motion_val[list][b_xy + 0]);
2229
8459942
            ref_cache[0 - 1 * 8] =
2230
8459942
            ref_cache[1 - 1 * 8] = ref2frm[h->cur_pic.ref_index[list][b8_xy + 0]];
2231
8459942
            ref_cache[2 - 1 * 8] =
2232
8459942
            ref_cache[3 - 1 * 8] = ref2frm[h->cur_pic.ref_index[list][b8_xy + 1]];
2233
        } else {
2234
2214324
            AV_ZERO128(mv_dst - 1 * 8);
2235
2214324
            AV_WN32A(&ref_cache[0 - 1 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
2236
        }
2237
2238
10674266
        if (!IS_INTERLACED(mb_type ^ left_type[LTOP])) {
2239
10274679
            if (USES_LIST(left_type[LTOP], list)) {
2240
8489061
                const int b_xy  = h->mb2b_xy[left_xy[LTOP]] + 3;
2241
8489061
                const int b8_xy = 4 * left_xy[LTOP] + 1;
2242
8489061
                const int *ref2frm = &h->ref2frm[h->slice_table[left_xy[LTOP]] & (MAX_SLICES - 1)][list][(MB_MBAFF(sl) ? 20 : 2)];
2243
8489061
                AV_COPY32(mv_dst - 1 +  0, h->cur_pic.motion_val[list][b_xy + b_stride * 0]);
2244
8489061
                AV_COPY32(mv_dst - 1 +  8, h->cur_pic.motion_val[list][b_xy + b_stride * 1]);
2245
8489061
                AV_COPY32(mv_dst - 1 + 16, h->cur_pic.motion_val[list][b_xy + b_stride * 2]);
2246
8489061
                AV_COPY32(mv_dst - 1 + 24, h->cur_pic.motion_val[list][b_xy + b_stride * 3]);
2247
8489061
                ref_cache[-1 +  0] =
2248
8489061
                ref_cache[-1 +  8] = ref2frm[h->cur_pic.ref_index[list][b8_xy + 2 * 0]];
2249
8489061
                ref_cache[-1 + 16] =
2250
8489061
                ref_cache[-1 + 24] = ref2frm[h->cur_pic.ref_index[list][b8_xy + 2 * 1]];
2251
            } else {
2252
1785618
                AV_ZERO32(mv_dst - 1 +  0);
2253
1785618
                AV_ZERO32(mv_dst - 1 +  8);
2254
1785618
                AV_ZERO32(mv_dst - 1 + 16);
2255
1785618
                AV_ZERO32(mv_dst - 1 + 24);
2256
1785618
                ref_cache[-1 +  0] =
2257
1785618
                ref_cache[-1 +  8] =
2258
1785618
                ref_cache[-1 + 16] =
2259
1785618
                ref_cache[-1 + 24] = LIST_NOT_USED;
2260
            }
2261
        }
2262
    }
2263
2264
10674266
    if (!USES_LIST(mb_type, list)) {
2265
1236726
        fill_rectangle(mv_dst, 4, 4, 8, pack16to32(0, 0), 4);
2266
1236726
        AV_WN32A(&ref_cache[0 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
2267
1236726
        AV_WN32A(&ref_cache[1 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
2268
1236726
        AV_WN32A(&ref_cache[2 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
2269
1236726
        AV_WN32A(&ref_cache[3 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
2270
1236726
        return;
2271
    }
2272
2273
    {
2274
9437540
        int8_t *ref = &h->cur_pic.ref_index[list][4 * mb_xy];
2275
9437540
        const int *ref2frm = &h->ref2frm[sl->slice_num & (MAX_SLICES - 1)][list][(MB_MBAFF(sl) ? 20 : 2)];
2276
9437540
        uint32_t ref01 = (pack16to32(ref2frm[ref[0]], ref2frm[ref[1]]) & 0x00FF00FF) * 0x0101;
2277
9437540
        uint32_t ref23 = (pack16to32(ref2frm[ref[2]], ref2frm[ref[3]]) & 0x00FF00FF) * 0x0101;
2278
9437540
        AV_WN32A(&ref_cache[0 * 8], ref01);
2279
9437540
        AV_WN32A(&ref_cache[1 * 8], ref01);
2280
9437540
        AV_WN32A(&ref_cache[2 * 8], ref23);
2281
9437540
        AV_WN32A(&ref_cache[3 * 8], ref23);
2282
    }
2283
2284
    {
2285
9437540
        int16_t(*mv_src)[2] = &h->cur_pic.motion_val[list][4 * sl->mb_x + 4 * sl->mb_y * b_stride];
2286
9437540
        AV_COPY128(mv_dst + 8 * 0, mv_src + 0 * b_stride);
2287
9437540
        AV_COPY128(mv_dst + 8 * 1, mv_src + 1 * b_stride);
2288
9437540
        AV_COPY128(mv_dst + 8 * 2, mv_src + 2 * b_stride);
2289
9437540
        AV_COPY128(mv_dst + 8 * 3, mv_src + 3 * b_stride);
2290
    }
2291
}
2292
2293
/**
2294
 * @return non zero if the loop filter can be skipped
2295
 */
2296
10756383
static int fill_filter_caches(const H264Context *h, H264SliceContext *sl, int mb_type)
2297
{
2298
10756383
    const int mb_xy = sl->mb_xy;
2299
    int top_xy, left_xy[LEFT_MBS];
2300
    int top_type, left_type[LEFT_MBS];
2301
    uint8_t *nnz;
2302
    uint8_t *nnz_cache;
2303
2304
10756383
    top_xy = mb_xy - (h->mb_stride << MB_FIELD(sl));
2305
2306
10756383
    left_xy[LBOT] = left_xy[LTOP] = mb_xy - 1;
2307
10756383
    if (FRAME_MBAFF(h)) {
2308
1814136
        const int left_mb_field_flag = IS_INTERLACED(h->cur_pic.mb_type[mb_xy - 1]);
2309
1814136
        const int curr_mb_field_flag = IS_INTERLACED(mb_type);
2310
1814136
        if (sl->mb_y & 1) {
2311
907068
            if (left_mb_field_flag != curr_mb_field_flag)
2312
189266
                left_xy[LTOP] -= h->mb_stride;
2313
        } else {
2314
907068
            if (curr_mb_field_flag)
2315
241257
                top_xy += h->mb_stride &
2316
241257
                          (((h->cur_pic.mb_type[top_xy] >> 7) & 1) - 1);
2317
907068
            if (left_mb_field_flag != curr_mb_field_flag)
2318
189266
                left_xy[LBOT] += h->mb_stride;
2319
        }
2320
    }
2321
2322
10756383
    sl->top_mb_xy        = top_xy;
2323
10756383
    sl->left_mb_xy[LTOP] = left_xy[LTOP];
2324
10756383
    sl->left_mb_xy[LBOT] = left_xy[LBOT];
2325
    {
2326
        /* For sufficiently low qp, filtering wouldn't do anything.
2327
         * This is a conservative estimate: could also check beta_offset
2328
         * and more accurate chroma_qp. */
2329
10756383
        int qp_thresh = sl->qp_thresh; // FIXME strictly we should store qp_thresh for each mb of a slice
2330
10756383
        int qp        = h->cur_pic.qscale_table[mb_xy];
2331
10756383
        if (qp <= qp_thresh &&
2332
992896
            (left_xy[LTOP] < 0 ||
2333

992896
             ((qp + h->cur_pic.qscale_table[left_xy[LTOP]] + 1) >> 1) <= qp_thresh) &&
2334
889380
            (top_xy < 0 ||
2335
889380
             ((qp + h->cur_pic.qscale_table[top_xy] + 1) >> 1) <= qp_thresh)) {
2336
861760
            if (!FRAME_MBAFF(h))
2337
639315
                return 1;
2338
222445
            if ((left_xy[LTOP] < 0 ||
2339
222351
                 ((qp + h->cur_pic.qscale_table[left_xy[LBOT]] + 1) >> 1) <= qp_thresh) &&
2340
222040
                (top_xy < h->mb_stride ||
2341
207469
                 ((qp + h->cur_pic.qscale_table[top_xy - h->mb_stride] + 1) >> 1) <= qp_thresh))
2342
205646
                return 1;
2343
        }
2344
    }
2345
2346
9911422
    top_type        = h->cur_pic.mb_type[top_xy];
2347
9911422
    left_type[LTOP] = h->cur_pic.mb_type[left_xy[LTOP]];
2348
9911422
    left_type[LBOT] = h->cur_pic.mb_type[left_xy[LBOT]];
2349
9911422
    if (sl->deblocking_filter == 2) {
2350
470376
        if (h->slice_table[top_xy] != sl->slice_num)
2351
56878
            top_type = 0;
2352
470376
        if (h->slice_table[left_xy[LBOT]] != sl->slice_num)
2353
13874
            left_type[LTOP] = left_type[LBOT] = 0;
2354
    } else {
2355
9441046
        if (h->slice_table[top_xy] == 0xFFFF)
2356
450225
            top_type = 0;
2357
9441046
        if (h->slice_table[left_xy[LBOT]] == 0xFFFF)
2358
289514
            left_type[LTOP] = left_type[LBOT] = 0;
2359
    }
2360
9911422
    sl->top_type        = top_type;
2361
9911422
    sl->left_type[LTOP] = left_type[LTOP];
2362
9911422
    sl->left_type[LBOT] = left_type[LBOT];
2363
2364
9911422
    if (IS_INTRA(mb_type))
2365
2860763
        return 0;
2366
2367
7050659
    fill_filter_caches_inter(h, sl, mb_type, top_xy, left_xy,
2368
                             top_type, left_type, mb_xy, 0);
2369
7050659
    if (sl->list_count == 2)
2370
3623607
        fill_filter_caches_inter(h, sl, mb_type, top_xy, left_xy,
2371
                                 top_type, left_type, mb_xy, 1);
2372
2373
7050659
    nnz       = h->non_zero_count[mb_xy];
2374
7050659
    nnz_cache = sl->non_zero_count_cache;
2375
7050659
    AV_COPY32(&nnz_cache[4 + 8 * 1], &nnz[0]);
2376
7050659
    AV_COPY32(&nnz_cache[4 + 8 * 2], &nnz[4]);
2377
7050659
    AV_COPY32(&nnz_cache[4 + 8 * 3], &nnz[8]);
2378
7050659
    AV_COPY32(&nnz_cache[4 + 8 * 4], &nnz[12]);
2379
7050659
    sl->cbp = h->cbp_table[mb_xy];
2380
2381
7050659
    if (top_type) {
2382
6645482
        nnz = h->non_zero_count[top_xy];
2383
6645482
        AV_COPY32(&nnz_cache[4 + 8 * 0], &nnz[3 * 4]);
2384
    }
2385
2386
7050659
    if (left_type[LTOP]) {
2387
6802837
        nnz = h->non_zero_count[left_xy[LTOP]];
2388
6802837
        nnz_cache[3 + 8 * 1] = nnz[3 + 0 * 4];
2389
6802837
        nnz_cache[3 + 8 * 2] = nnz[3 + 1 * 4];
2390
6802837
        nnz_cache[3 + 8 * 3] = nnz[3 + 2 * 4];
2391
6802837
        nnz_cache[3 + 8 * 4] = nnz[3 + 3 * 4];
2392
    }
2393
2394
    /* CAVLC 8x8dct requires NNZ values for residual decoding that differ
2395
     * from what the loop filter needs */
2396

7050659
    if (!CABAC(h) && h->ps.pps->transform_8x8_mode) {
2397
246512
        if (IS_8x8DCT(top_type)) {
2398
107880
            nnz_cache[4 + 8 * 0] =
2399
107880
            nnz_cache[5 + 8 * 0] = (h->cbp_table[top_xy] & 0x4000) >> 12;
2400
107880
            nnz_cache[6 + 8 * 0] =
2401
107880
            nnz_cache[7 + 8 * 0] = (h->cbp_table[top_xy] & 0x8000) >> 12;
2402
        }
2403
246512
        if (IS_8x8DCT(left_type[LTOP])) {
2404
110456
            nnz_cache[3 + 8 * 1] =
2405
110456
            nnz_cache[3 + 8 * 2] = (h->cbp_table[left_xy[LTOP]] & 0x2000) >> 12; // FIXME check MBAFF
2406
        }
2407
246512
        if (IS_8x8DCT(left_type[LBOT])) {
2408
110556
            nnz_cache[3 + 8 * 3] =
2409
110556
            nnz_cache[3 + 8 * 4] = (h->cbp_table[left_xy[LBOT]] & 0x8000) >> 12; // FIXME check MBAFF
2410
        }
2411
2412
246512
        if (IS_8x8DCT(mb_type)) {
2413
104923
            nnz_cache[scan8[0]] =
2414
104923
            nnz_cache[scan8[1]] =
2415
104923
            nnz_cache[scan8[2]] =
2416
104923
            nnz_cache[scan8[3]] = (sl->cbp & 0x1000) >> 12;
2417
2418
104923
            nnz_cache[scan8[0 + 4]] =
2419
104923
            nnz_cache[scan8[1 + 4]] =
2420
104923
            nnz_cache[scan8[2 + 4]] =
2421
104923
            nnz_cache[scan8[3 + 4]] = (sl->cbp & 0x2000) >> 12;
2422
2423
104923
            nnz_cache[scan8[0 + 8]] =
2424
104923
            nnz_cache[scan8[1 + 8]] =
2425
104923
            nnz_cache[scan8[2 + 8]] =
2426
104923
            nnz_cache[scan8[3 + 8]] = (sl->cbp & 0x4000) >> 12;
2427
2428
104923
            nnz_cache[scan8[0 + 12]] =
2429
104923
            nnz_cache[scan8[1 + 12]] =
2430
104923
            nnz_cache[scan8[2 + 12]] =
2431
104923
            nnz_cache[scan8[3 + 12]] = (sl->cbp & 0x8000) >> 12;
2432
        }
2433
    }
2434
2435
7050659
    return 0;
2436
}
2437
2438
358726
static void loop_filter(const H264Context *h, H264SliceContext *sl, int start_x, int end_x)
2439
{
2440
    uint8_t *dest_y, *dest_cb, *dest_cr;
2441
    int linesize, uvlinesize, mb_x, mb_y;
2442
358726
    const int end_mb_y       = sl->mb_y + FRAME_MBAFF(h);
2443
358726
    const int old_slice_type = sl->slice_type;
2444
358726
    const int pixel_shift    = h->pixel_shift;
2445
358726
    const int block_h        = 16 >> h->chroma_y_shift;
2446
2447
358726
    if (h->postpone_filter)
2448
        return;
2449
2450
358726
    if (sl->deblocking_filter) {
2451
10138879
        for (mb_x = start_x; mb_x < end_x; mb_x++)
2452
20605698
            for (mb_y = end_mb_y - FRAME_MBAFF(h); mb_y <= end_mb_y; mb_y++) {
2453
                int mb_xy, mb_type;
2454
10756383
                mb_xy         = sl->mb_xy = mb_x + mb_y * h->mb_stride;
2455
10756383
                mb_type       = h->cur_pic.mb_type[mb_xy];
2456
2457
10756383
                if (FRAME_MBAFF(h))
2458
1814136
                    sl->mb_mbaff               =
2459
1814136
                    sl->mb_field_decoding_flag = !!IS_INTERLACED(mb_type);
2460
2461
10756383
                sl->mb_x = mb_x;
2462
10756383
                sl->mb_y = mb_y;
2463
10756383
                dest_y  = h->cur_pic.f->data[0] +
2464
10756383
                          ((mb_x << pixel_shift) + mb_y * sl->linesize) * 16;
2465
21512766
                dest_cb = h->cur_pic.f->data[1] +
2466
10756383
                          (mb_x << pixel_shift) * (8 << CHROMA444(h)) +
2467
10756383
                          mb_y * sl->uvlinesize * block_h;
2468
21512766
                dest_cr = h->cur_pic.f->data[2] +
2469
10756383
                          (mb_x << pixel_shift) * (8 << CHROMA444(h)) +
2470
10756383
                          mb_y * sl->uvlinesize * block_h;
2471
                // FIXME simplify above
2472
2473
10756383
                if (MB_FIELD(sl)) {
2474
3606552
                    linesize   = sl->mb_linesize   = sl->linesize   * 2;
2475
3606552
                    uvlinesize = sl->mb_uvlinesize = sl->uvlinesize * 2;
2476
3606552
                    if (mb_y & 1) { // FIXME move out of this function?
2477
1802577
                        dest_y  -= sl->linesize   * 15;
2478
1802577
                        dest_cb -= sl->uvlinesize * (block_h - 1);
2479
1802577
                        dest_cr -= sl->uvlinesize * (block_h - 1);
2480
                    }
2481
                } else {
2482
7149831
                    linesize   = sl->mb_linesize   = sl->linesize;
2483
7149831
                    uvlinesize = sl->mb_uvlinesize = sl->uvlinesize;
2484
                }
2485
10756383
                backup_mb_border(h, sl, dest_y, dest_cb, dest_cr, linesize,
2486
                                 uvlinesize, 0);
2487
10756383
                if (fill_filter_caches(h, sl, mb_type))
2488
844961
                    continue;
2489
9911422
                sl->chroma_qp[0] = get_chroma_qp(h->ps.pps, 0, h->cur_pic.qscale_table[mb_xy]);
2490
9911422
                sl->chroma_qp[1] = get_chroma_qp(h->ps.pps, 1, h->cur_pic.qscale_table[mb_xy]);
2491
2492
9911422
                if (FRAME_MBAFF(h)) {
2493
1608490
                    ff_h264_filter_mb(h, sl, mb_x, mb_y, dest_y, dest_cb, dest_cr,
2494
                                      linesize, uvlinesize);
2495
                } else {
2496
8302932
                    ff_h264_filter_mb_fast(h, sl, mb_x, mb_y, dest_y, dest_cb,
2497
                                           dest_cr, linesize, uvlinesize);
2498
                }
2499
            }
2500
    }
2501
358726
    sl->slice_type  = old_slice_type;
2502
358726
    sl->mb_x         = end_x;
2503
358726
    sl->mb_y         = end_mb_y - FRAME_MBAFF(h);
2504
358726
    sl->chroma_qp[0] = get_chroma_qp(h->ps.pps, 0, sl->qscale);
2505
358726
    sl->chroma_qp[1] = get_chroma_qp(h->ps.pps, 1, sl->qscale);
2506
}
2507
2508
22884
static void predict_field_decoding_flag(const H264Context *h, H264SliceContext *sl)
2509
{
2510
22884
    const int mb_xy = sl->mb_x + sl->mb_y * h->mb_stride;
2511
45768
    int mb_type     = (h->slice_table[mb_xy - 1] == sl->slice_num) ?
2512
45768
                      h->cur_pic.mb_type[mb_xy - 1] :
2513
22884
                      (h->slice_table[mb_xy - h->mb_stride] == sl->slice_num) ?
2514
22748
                      h->cur_pic.mb_type[mb_xy - h->mb_stride] : 0;
2515
22884
    sl->mb_mbaff    = sl->mb_field_decoding_flag = IS_INTERLACED(mb_type) ? 1 : 0;
2516
22884
}
2517
2518
/**
2519
 * Draw edges and report progress for the last MB row.
2520
 */
2521
354631
static void decode_finish_row(const H264Context *h, H264SliceContext *sl)
2522
{
2523
354631
    int top            = 16 * (sl->mb_y      >> FIELD_PICTURE(h));
2524
354631
    int pic_height     = 16 *  h->mb_height >> FIELD_PICTURE(h);
2525
354631
    int height         =  16      << FRAME_MBAFF(h);
2526
354631
    int deblock_border = (16 + 4) << FRAME_MBAFF(h);
2527
2528
354631
    if (sl->deblocking_filter) {
2529
286481
        if ((top + height) >= pic_height)
2530
20326
            height += deblock_border;
2531
286481
        top -= deblock_border;
2532
    }
2533
2534

354631
    if (top >= pic_height || (top + height) < 0)
2535
20327
        return;
2536
2537
334304
    height = FFMIN(height, pic_height - top);
2538
334304
    if (top < 0) {
2539
20327
        height = top + height;
2540
20327
        top    = 0;
2541
    }
2542
2543
334304
    ff_h264_draw_horiz_band(h, sl, top, height);
2544
2545

334304
    if (h->droppable || sl->h264->slice_ctx[0].er.error_occurred)
2546
119504
        return;
2547
2548
214800
    ff_thread_report_progress(&h->cur_pic_ptr->tf, top + height - 1,
2549
214800
                              h->picture_structure == PICT_BOTTOM_FIELD);
2550
}
2551
2552
34012
static void er_add_slice(H264SliceContext *sl,
2553
                         int startx, int starty,
2554
                         int endx, int endy, int status)
2555
{
2556
34012
    if (!sl->h264->enable_er)
2557
1200
        return;
2558
2559
    if (CONFIG_ERROR_RESILIENCE) {
2560
32812
        ERContext *er = &sl->h264->slice_ctx[0].er;
2561
2562
32812
        ff_er_add_slice(er, startx, starty, endx, endy, status);
2563
    }
2564
}
2565
2566
34012
static int decode_slice(struct AVCodecContext *avctx, void *arg)
2567
{
2568
34012
    H264SliceContext *sl = arg;
2569
34012
    const H264Context *h = sl->h264;
2570
34012
    int lf_x_start = sl->mb_x;
2571
34012
    int orig_deblock = sl->deblocking_filter;
2572
    int ret;
2573
2574
34012
    sl->linesize   = h->cur_pic_ptr->f->linesize[0];
2575
34012
    sl->uvlinesize = h->cur_pic_ptr->f->linesize[1];
2576
2577
34012
    ret = alloc_scratch_buffers(sl, sl->linesize);
2578
34012
    if (ret < 0)
2579
        return ret;
2580
2581
34012
    sl->mb_skip_run = -1;
2582
2583
34012
    av_assert0(h->block_offset[15] == (4 * ((scan8[15] - scan8[0]) & 7) << h->pixel_shift) + 4 * sl->linesize * ((scan8[15] - scan8[0]) >> 3));
2584
2585
34012
    if (h->postpone_filter)
2586
        sl->deblocking_filter = 0;
2587
2588

34012
    sl->is_complex = FRAME_MBAFF(h) || h->picture_structure != PICT_FRAME ||
2589
                     (CONFIG_GRAY && (h->flags & AV_CODEC_FLAG_GRAY));
2590
2591

34012
    if (!(h->avctx->active_thread_type & FF_THREAD_SLICE) && h->picture_structure == PICT_FRAME && h->slice_ctx[0].er.error_status_table) {
2592
24415
        const int start_i  = av_clip(sl->resync_mb_x + sl->resync_mb_y * h->mb_width, 0, h->mb_num - 1);
2593
24415
        if (start_i) {
2594
5278
            int prev_status = h->slice_ctx[0].er.error_status_table[h->slice_ctx[0].er.mb_index2xy[start_i - 1]];
2595
5278
            prev_status &= ~ VP_START;
2596
5278
            if (prev_status != (ER_MV_END | ER_DC_END | ER_AC_END))
2597
                h->slice_ctx[0].er.error_occurred = 1;
2598
        }
2599
    }
2600
2601
34012
    if (h->ps.pps->cabac) {
2602
        /* realign */
2603
18089
        align_get_bits(&sl->gb);
2604
2605
        /* init cabac */
2606
36178
        ret = ff_init_cabac_decoder(&sl->cabac,
2607
18089
                              sl->gb.buffer + get_bits_count(&sl->gb) / 8,
2608
18089
                              (get_bits_left(&sl->gb) + 7) / 8);
2609
18089
        if (ret < 0)
2610
            return ret;
2611
2612
18089
        ff_h264_init_cabac_states(h, sl);
2613
2614
7679670
        for (;;) {
2615
            int ret, eos;
2616
7697759
            if (sl->mb_x + sl->mb_y * h->mb_width >= sl->next_slice_idx) {
2617
                av_log(h->avctx, AV_LOG_ERROR, "Slice overlaps with next at %d\n",
2618
                       sl->next_slice_idx);
2619
                er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x,
2620
                             sl->mb_y, ER_MB_ERROR);
2621
                return AVERROR_INVALIDDATA;
2622
            }
2623
2624
7697759
            ret = ff_h264_decode_mb_cabac(h, sl);
2625
2626
7697759
            if (ret >= 0)
2627
7697758
                ff_h264_hl_decode_mb(h, sl);
2628
2629
            // FIXME optimal? or let mb_decode decode 16x32 ?
2630

7697759
            if (ret >= 0 && FRAME_MBAFF(h)) {
2631
798720
                sl->mb_y++;
2632
2633
798720
                ret = ff_h264_decode_mb_cabac(h, sl);
2634
2635
798720
                if (ret >= 0)
2636
798720
                    ff_h264_hl_decode_mb(h, sl);
2637
798720
                sl->mb_y--;
2638
            }
2639
7697759
            eos = get_cabac_terminate(&sl->cabac);
2640
2641
7697759
            if ((h->workaround_bugs & FF_BUG_TRUNCATED) &&
2642
                sl->cabac.bytestream > sl->cabac.bytestream_end + 2) {
2643
                er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x - 1,
2644
                             sl->mb_y, ER_MB_END);
2645
                if (sl->mb_x >= lf_x_start)
2646
                    loop_filter(h, sl, lf_x_start, sl->mb_x + 1);
2647
                goto finish;
2648
            }
2649
7697759
            if (sl->cabac.bytestream > sl->cabac.bytestream_end + 2 )
2650
1
                av_log(h->avctx, AV_LOG_DEBUG, "bytestream overread %"PTRDIFF_SPECIFIER"\n", sl->cabac.bytestream_end - sl->cabac.bytestream);
2651

7697759
            if (ret < 0 || sl->cabac.bytestream > sl->cabac.bytestream_end + 4) {
2652
2
                av_log(h->avctx, AV_LOG_ERROR,
2653
                       "error while decoding MB %d %d, bytestream %"PTRDIFF_SPECIFIER"\n",
2654
                       sl->mb_x, sl->mb_y,
2655
2
                       sl->cabac.bytestream_end - sl->cabac.bytestream);
2656
2
                er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x,
2657
                             sl->mb_y, ER_MB_ERROR);
2658
2
                return AVERROR_INVALIDDATA;
2659
            }
2660
2661
7697757
            if (++sl->mb_x >= h->mb_width) {
2662
202002
                loop_filter(h, sl, lf_x_start, sl->mb_x);
2663
202002
                sl->mb_x = lf_x_start = 0;
2664
202002
                decode_finish_row(h, sl);
2665
202002
                ++sl->mb_y;
2666

202002
                if (FIELD_OR_MBAFF_PICTURE(h)) {
2667
70062
                    ++sl->mb_y;
2668

70062
                    if (FRAME_MBAFF(h) && sl->mb_y < h->mb_height)
2669
17906
                        predict_field_decoding_flag(h, sl);
2670
                }
2671
            }
2672
2673

7697757
            if (eos || sl->mb_y >= h->mb_height) {
2674
                ff_tlog(h->avctx, "slice end %d %d\n",
2675
                        get_bits_count(&sl->gb), sl->gb.size_in_bits);
2676
18087
                er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x - 1,
2677
                             sl->mb_y, ER_MB_END);
2678
18087
                if (sl->mb_x > lf_x_start)
2679
1382
                    loop_filter(h, sl, lf_x_start, sl->mb_x);
2680
18087
                goto finish;
2681
            }
2682
        }
2683
    } else {
2684
4076548
        for (;;) {
2685
            int ret;
2686
2687
4092471
            if (sl->mb_x + sl->mb_y * h->mb_width >= sl->next_slice_idx) {
2688
                av_log(h->avctx, AV_LOG_ERROR, "Slice overlaps with next at %d\n",
2689
                       sl->next_slice_idx);
2690
                er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x,
2691
                             sl->mb_y, ER_MB_ERROR);
2692
                return AVERROR_INVALIDDATA;
2693
            }
2694
2695
4092471
            ret = ff_h264_decode_mb_cavlc(h, sl);
2696
2697
4092471
            if (ret >= 0)
2698
4092471
                ff_h264_hl_decode_mb(h, sl);
2699
2700
            // FIXME optimal? or let mb_decode decode 16x32 ?
2701

4092471
            if (ret >= 0 && FRAME_MBAFF(h)) {
2702
254472
                sl->mb_y++;
2703
254472
                ret = ff_h264_decode_mb_cavlc(h, sl);
2704
2705
254472
                if (ret >= 0)
2706
254472
                    ff_h264_hl_decode_mb(h, sl);
2707
254472
                sl->mb_y--;
2708
            }
2709
2710
4092471
            if (ret < 0) {
2711
                av_log(h->avctx, AV_LOG_ERROR,
2712
                       "error while decoding MB %d %d\n", sl->mb_x, sl->mb_y);
2713
                er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x,
2714
                             sl->mb_y, ER_MB_ERROR);
2715
                return ret;
2716
            }
2717
2718
4092471
            if (++sl->mb_x >= h->mb_width) {
2719
152629
                loop_filter(h, sl, lf_x_start, sl->mb_x);
2720
152629
                sl->mb_x = lf_x_start = 0;
2721
152629
                decode_finish_row(h, sl);
2722
152629
                ++sl->mb_y;
2723

152629
                if (FIELD_OR_MBAFF_PICTURE(h)) {
2724
32143
                    ++sl->mb_y;
2725

32143
                    if (FRAME_MBAFF(h) && sl->mb_y < h->mb_height)
2726
4978
                        predict_field_decoding_flag(h, sl);
2727
                }
2728
152629
                if (sl->mb_y >= h->mb_height) {
2729
                    ff_tlog(h->avctx, "slice end %d %d\n",
2730
                            get_bits_count(&sl->gb), sl->gb.size_in_bits);
2731
2732
12346
                    if (   get_bits_left(&sl->gb) == 0
2733
                        || get_bits_left(&sl->gb) > 0 && !(h->avctx->err_recognition & AV_EF_AGGRESSIVE)) {
2734
12346
                        er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y,
2735
12346
                                     sl->mb_x - 1, sl->mb_y, ER_MB_END);
2736
2737
12346
                        goto finish;
2738
                    } else {
2739
                        er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y,
2740
                                     sl->mb_x, sl->mb_y, ER_MB_END);
2741
2742
                        return AVERROR_INVALIDDATA;
2743
                    }
2744
                }
2745
            }
2746
2747

4080125
            if (get_bits_left(&sl->gb) <= 0 && sl->mb_skip_run <= 0) {
2748
                ff_tlog(h->avctx, "slice end %d %d\n",
2749
                        get_bits_count(&sl->gb), sl->gb.size_in_bits);
2750
2751
3577
                if (get_bits_left(&sl->gb) == 0) {
2752
3577
                    er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y,
2753
3577
                                 sl->mb_x - 1, sl->mb_y, ER_MB_END);
2754
3577
                    if (sl->mb_x > lf_x_start)
2755
2713
                        loop_filter(h, sl, lf_x_start, sl->mb_x);
2756
2757
3577
                    goto finish;
2758
                } else {
2759
                    er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x,
2760
                                 sl->mb_y, ER_MB_ERROR);
2761
2762
                    return AVERROR_INVALIDDATA;
2763
                }
2764
            }
2765
        }
2766
    }
2767
2768
34010
finish:
2769
34010
    sl->deblocking_filter = orig_deblock;
2770
34010
    return 0;
2771
}
2772
2773
/**
2774
 * Call decode_slice() for each context.
2775
 *
2776
 * @param h h264 master context
2777
 */
2778
60085
int ff_h264_execute_decode_slices(H264Context *h)
2779
{
2780
60085
    AVCodecContext *const avctx = h->avctx;
2781
    H264SliceContext *sl;
2782
60085
    int context_count = h->nb_slice_ctx_queued;
2783
60085
    int ret = 0;
2784
    int i, j;
2785
2786
60085
    h->slice_ctx[0].next_slice_idx = INT_MAX;
2787
2788

60085
    if (h->avctx->hwaccel || context_count < 1)
2789
26523
        return 0;
2790
2791

33562
    av_assert0(context_count && h->slice_ctx[context_count - 1].mb_y < h->mb_height);
2792
2793
33562
    if (context_count == 1) {
2794
2795
33112
        h->slice_ctx[0].next_slice_idx = h->mb_width * h->mb_height;
2796
33112
        h->postpone_filter = 0;
2797
2798
33112
        ret = decode_slice(avctx, &h->slice_ctx[0]);
2799
33112
        h->mb_y = h->slice_ctx[0].mb_y;
2800
33112
        if (ret < 0)
2801
2
            goto finish;
2802
    } else {
2803
450
        av_assert0(context_count > 0);
2804
1350
        for (i = 0; i < context_count; i++) {
2805
900
            int next_slice_idx = h->mb_width * h->mb_height;
2806
            int slice_idx;
2807
2808
900
            sl                 = &h->slice_ctx[i];
2809
            if (CONFIG_ERROR_RESILIENCE) {
2810
900
                sl->er.error_count = 0;
2811
            }
2812
2813
            /* make sure none of those slices overlap */
2814
900
            slice_idx = sl->mb_y * h->mb_width + sl->mb_x;
2815
2700
            for (j = 0; j < context_count; j++) {
2816
1800
                H264SliceContext *sl2 = &h->slice_ctx[j];
2817
1800
                int        slice_idx2 = sl2->mb_y * h->mb_width + sl2->mb_x;
2818
2819

1800
                if (i == j || slice_idx2 < slice_idx)
2820
1350
                    continue;
2821
450
                next_slice_idx = FFMIN(next_slice_idx, slice_idx2);
2822
            }
2823
900
            sl->next_slice_idx = next_slice_idx;
2824
        }
2825
2826
450
        avctx->execute(avctx, decode_slice, h->slice_ctx,
2827
                       NULL, context_count, sizeof(h->slice_ctx[0]));
2828
2829
        /* pull back stuff from slices to master context */
2830
450
        sl                   = &h->slice_ctx[context_count - 1];
2831
450
        h->mb_y              = sl->mb_y;
2832
        if (CONFIG_ERROR_RESILIENCE) {
2833
900
            for (i = 1; i < context_count; i++)
2834
450
                h->slice_ctx[0].er.error_count += h->slice_ctx[i].er.error_count;
2835
        }
2836
2837
450
        if (h->postpone_filter) {
2838
            h->postpone_filter = 0;
2839
2840
            for (i = 0; i < context_count; i++) {
2841
                int y_end, x_end;
2842
2843
                sl = &h->slice_ctx[i];
2844
                y_end = FFMIN(sl->mb_y + 1, h->mb_height);
2845
                x_end = (sl->mb_y >= h->mb_height) ? h->mb_width : sl->mb_x;
2846
2847
                for (j = sl->resync_mb_y; j < y_end; j += 1 + FIELD_OR_MBAFF_PICTURE(h)) {
2848
                    sl->mb_y = j;
2849
                    loop_filter(h, sl, j > sl->resync_mb_y ? 0 : sl->resync_mb_x,
2850
                                j == y_end - 1 ? x_end : h->mb_width);
2851
                }
2852
            }
2853
        }
2854
    }
2855
2856
450
finish:
2857
33562
    h->nb_slice_ctx_queued = 0;
2858
33562
    return ret;
2859
}