GCC Code Coverage Report
Directory: ../../../ffmpeg/ Exec Total Coverage
File: src/libavcodec/h264_slice.c Lines: 1368 1712 79.9 %
Date: 2021-01-21 21:11:50 Branches: 910 1287 70.7 %

Line Branch Exec Source
1
/*
2
 * H.26L/H.264/AVC/JVT/14496-10/... decoder
3
 * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
4
 *
5
 * This file is part of FFmpeg.
6
 *
7
 * FFmpeg is free software; you can redistribute it and/or
8
 * modify it under the terms of the GNU Lesser General Public
9
 * License as published by the Free Software Foundation; either
10
 * version 2.1 of the License, or (at your option) any later version.
11
 *
12
 * FFmpeg is distributed in the hope that it will be useful,
13
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15
 * Lesser General Public License for more details.
16
 *
17
 * You should have received a copy of the GNU Lesser General Public
18
 * License along with FFmpeg; if not, write to the Free Software
19
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20
 */
21
22
/**
23
 * @file
24
 * H.264 / AVC / MPEG-4 part10 codec.
25
 * @author Michael Niedermayer <michaelni@gmx.at>
26
 */
27
28
#include "libavutil/avassert.h"
29
#include "libavutil/display.h"
30
#include "libavutil/imgutils.h"
31
#include "libavutil/stereo3d.h"
32
#include "internal.h"
33
#include "cabac.h"
34
#include "cabac_functions.h"
35
#include "error_resilience.h"
36
#include "avcodec.h"
37
#include "h264.h"
38
#include "h264dec.h"
39
#include "h264data.h"
40
#include "h264chroma.h"
41
#include "h264_mvpred.h"
42
#include "h264_ps.h"
43
#include "golomb.h"
44
#include "mathops.h"
45
#include "mpegutils.h"
46
#include "mpegvideo.h"
47
#include "rectangle.h"
48
#include "thread.h"
49
50
static const uint8_t field_scan[16+1] = {
51
    0 + 0 * 4, 0 + 1 * 4, 1 + 0 * 4, 0 + 2 * 4,
52
    0 + 3 * 4, 1 + 1 * 4, 1 + 2 * 4, 1 + 3 * 4,
53
    2 + 0 * 4, 2 + 1 * 4, 2 + 2 * 4, 2 + 3 * 4,
54
    3 + 0 * 4, 3 + 1 * 4, 3 + 2 * 4, 3 + 3 * 4,
55
};
56
57
static const uint8_t field_scan8x8[64+1] = {
58
    0 + 0 * 8, 0 + 1 * 8, 0 + 2 * 8, 1 + 0 * 8,
59
    1 + 1 * 8, 0 + 3 * 8, 0 + 4 * 8, 1 + 2 * 8,
60
    2 + 0 * 8, 1 + 3 * 8, 0 + 5 * 8, 0 + 6 * 8,
61
    0 + 7 * 8, 1 + 4 * 8, 2 + 1 * 8, 3 + 0 * 8,
62
    2 + 2 * 8, 1 + 5 * 8, 1 + 6 * 8, 1 + 7 * 8,
63
    2 + 3 * 8, 3 + 1 * 8, 4 + 0 * 8, 3 + 2 * 8,
64
    2 + 4 * 8, 2 + 5 * 8, 2 + 6 * 8, 2 + 7 * 8,
65
    3 + 3 * 8, 4 + 1 * 8, 5 + 0 * 8, 4 + 2 * 8,
66
    3 + 4 * 8, 3 + 5 * 8, 3 + 6 * 8, 3 + 7 * 8,
67
    4 + 3 * 8, 5 + 1 * 8, 6 + 0 * 8, 5 + 2 * 8,
68
    4 + 4 * 8, 4 + 5 * 8, 4 + 6 * 8, 4 + 7 * 8,
69
    5 + 3 * 8, 6 + 1 * 8, 6 + 2 * 8, 5 + 4 * 8,
70
    5 + 5 * 8, 5 + 6 * 8, 5 + 7 * 8, 6 + 3 * 8,
71
    7 + 0 * 8, 7 + 1 * 8, 6 + 4 * 8, 6 + 5 * 8,
72
    6 + 6 * 8, 6 + 7 * 8, 7 + 2 * 8, 7 + 3 * 8,
73
    7 + 4 * 8, 7 + 5 * 8, 7 + 6 * 8, 7 + 7 * 8,
74
};
75
76
static const uint8_t field_scan8x8_cavlc[64+1] = {
77
    0 + 0 * 8, 1 + 1 * 8, 2 + 0 * 8, 0 + 7 * 8,
78
    2 + 2 * 8, 2 + 3 * 8, 2 + 4 * 8, 3 + 3 * 8,
79
    3 + 4 * 8, 4 + 3 * 8, 4 + 4 * 8, 5 + 3 * 8,
80
    5 + 5 * 8, 7 + 0 * 8, 6 + 6 * 8, 7 + 4 * 8,
81
    0 + 1 * 8, 0 + 3 * 8, 1 + 3 * 8, 1 + 4 * 8,
82
    1 + 5 * 8, 3 + 1 * 8, 2 + 5 * 8, 4 + 1 * 8,
83
    3 + 5 * 8, 5 + 1 * 8, 4 + 5 * 8, 6 + 1 * 8,
84
    5 + 6 * 8, 7 + 1 * 8, 6 + 7 * 8, 7 + 5 * 8,
85
    0 + 2 * 8, 0 + 4 * 8, 0 + 5 * 8, 2 + 1 * 8,
86
    1 + 6 * 8, 4 + 0 * 8, 2 + 6 * 8, 5 + 0 * 8,
87
    3 + 6 * 8, 6 + 0 * 8, 4 + 6 * 8, 6 + 2 * 8,
88
    5 + 7 * 8, 6 + 4 * 8, 7 + 2 * 8, 7 + 6 * 8,
89
    1 + 0 * 8, 1 + 2 * 8, 0 + 6 * 8, 3 + 0 * 8,
90
    1 + 7 * 8, 3 + 2 * 8, 2 + 7 * 8, 4 + 2 * 8,
91
    3 + 7 * 8, 5 + 2 * 8, 4 + 7 * 8, 5 + 4 * 8,
92
    6 + 3 * 8, 6 + 5 * 8, 7 + 3 * 8, 7 + 7 * 8,
93
};
94
95
// zigzag_scan8x8_cavlc[i] = zigzag_scan8x8[(i/4) + 16*(i%4)]
96
static const uint8_t zigzag_scan8x8_cavlc[64+1] = {
97
    0 + 0 * 8, 1 + 1 * 8, 1 + 2 * 8, 2 + 2 * 8,
98
    4 + 1 * 8, 0 + 5 * 8, 3 + 3 * 8, 7 + 0 * 8,
99
    3 + 4 * 8, 1 + 7 * 8, 5 + 3 * 8, 6 + 3 * 8,
100
    2 + 7 * 8, 6 + 4 * 8, 5 + 6 * 8, 7 + 5 * 8,
101
    1 + 0 * 8, 2 + 0 * 8, 0 + 3 * 8, 3 + 1 * 8,
102
    3 + 2 * 8, 0 + 6 * 8, 4 + 2 * 8, 6 + 1 * 8,
103
    2 + 5 * 8, 2 + 6 * 8, 6 + 2 * 8, 5 + 4 * 8,
104
    3 + 7 * 8, 7 + 3 * 8, 4 + 7 * 8, 7 + 6 * 8,
105
    0 + 1 * 8, 3 + 0 * 8, 0 + 4 * 8, 4 + 0 * 8,
106
    2 + 3 * 8, 1 + 5 * 8, 5 + 1 * 8, 5 + 2 * 8,
107
    1 + 6 * 8, 3 + 5 * 8, 7 + 1 * 8, 4 + 5 * 8,
108
    4 + 6 * 8, 7 + 4 * 8, 5 + 7 * 8, 6 + 7 * 8,
109
    0 + 2 * 8, 2 + 1 * 8, 1 + 3 * 8, 5 + 0 * 8,
110
    1 + 4 * 8, 2 + 4 * 8, 6 + 0 * 8, 4 + 3 * 8,
111
    0 + 7 * 8, 4 + 4 * 8, 7 + 2 * 8, 3 + 6 * 8,
112
    5 + 5 * 8, 6 + 5 * 8, 6 + 6 * 8, 7 + 7 * 8,
113
};
114
115
26579
static void release_unused_pictures(H264Context *h, int remove_current)
116
{
117
    int i;
118
119
    /* release non reference frames */
120
983423
    for (i = 0; i < H264_MAX_PICTURE_COUNT; i++) {
121

956844
        if (h->DPB[i].f->buf[0] && !h->DPB[i].reference &&
122
2490
            (remove_current || &h->DPB[i] != h->cur_pic_ptr)) {
123
21344
            ff_h264_unref_picture(h, &h->DPB[i]);
124
        }
125
    }
126
26579
}
127
128
34012
static int alloc_scratch_buffers(H264SliceContext *sl, int linesize)
129
{
130
34012
    const H264Context *h = sl->h264;
131
34012
    int alloc_size = FFALIGN(FFABS(linesize) + 32, 32);
132
133
34012
    av_fast_malloc(&sl->bipred_scratchpad, &sl->bipred_scratchpad_allocated, 16 * 6 * alloc_size);
134
    // edge emu needs blocksize + filter length - 1
135
    // (= 21x21 for  H.264)
136
34012
    av_fast_malloc(&sl->edge_emu_buffer, &sl->edge_emu_buffer_allocated, alloc_size * 2 * 21);
137
138
34012
    av_fast_mallocz(&sl->top_borders[0], &sl->top_borders_allocated[0],
139
34012
                   h->mb_width * 16 * 3 * sizeof(uint8_t) * 2);
140
34012
    av_fast_mallocz(&sl->top_borders[1], &sl->top_borders_allocated[1],
141
34012
                   h->mb_width * 16 * 3 * sizeof(uint8_t) * 2);
142
143

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

34012
        !sl->top_borders[0]    || !sl->top_borders[1]) {
145
        av_freep(&sl->bipred_scratchpad);
146
        av_freep(&sl->edge_emu_buffer);
147
        av_freep(&sl->top_borders[0]);
148
        av_freep(&sl->top_borders[1]);
149
150
        sl->bipred_scratchpad_allocated = 0;
151
        sl->edge_emu_buffer_allocated   = 0;
152
        sl->top_borders_allocated[0]    = 0;
153
        sl->top_borders_allocated[1]    = 0;
154
        return AVERROR(ENOMEM);
155
    }
156
157
34012
    return 0;
158
}
159
160
534
static int init_table_pools(H264Context *h)
161
{
162
534
    const int big_mb_num    = h->mb_stride * (h->mb_height + 1) + 1;
163
534
    const int mb_array_size = h->mb_stride * h->mb_height;
164
534
    const int b4_stride     = h->mb_width * 4 + 1;
165
534
    const int b4_array_size = b4_stride * h->mb_height * 4;
166
167
534
    h->qscale_table_pool = av_buffer_pool_init(big_mb_num + h->mb_stride,
168
                                               av_buffer_allocz);
169
534
    h->mb_type_pool      = av_buffer_pool_init((big_mb_num + h->mb_stride) *
170
                                               sizeof(uint32_t), av_buffer_allocz);
171
534
    h->motion_val_pool   = av_buffer_pool_init(2 * (b4_array_size + 4) *
172
                                               sizeof(int16_t), av_buffer_allocz);
173
534
    h->ref_index_pool    = av_buffer_pool_init(4 * mb_array_size, av_buffer_allocz);
174
175

534
    if (!h->qscale_table_pool || !h->mb_type_pool || !h->motion_val_pool ||
176
534
        !h->ref_index_pool) {
177
        av_buffer_pool_uninit(&h->qscale_table_pool);
178
        av_buffer_pool_uninit(&h->mb_type_pool);
179
        av_buffer_pool_uninit(&h->motion_val_pool);
180
        av_buffer_pool_uninit(&h->ref_index_pool);
181
        return AVERROR(ENOMEM);
182
    }
183
184
534
    return 0;
185
}
186
187
23346
static int alloc_picture(H264Context *h, H264Picture *pic)
188
{
189
23346
    int i, ret = 0;
190
191
23346
    av_assert0(!pic->f->data[0]);
192
193
23346
    pic->tf.f = pic->f;
194
23346
    ret = ff_thread_get_buffer(h->avctx, &pic->tf, pic->reference ?
195
                                                   AV_GET_BUFFER_FLAG_REF : 0);
196
23346
    if (ret < 0)
197
        goto fail;
198
199
23346
    if (h->avctx->hwaccel) {
200
        const AVHWAccel *hwaccel = h->avctx->hwaccel;
201
        av_assert0(!pic->hwaccel_picture_private);
202
        if (hwaccel->frame_priv_data_size) {
203
            pic->hwaccel_priv_buf = av_buffer_allocz(hwaccel->frame_priv_data_size);
204
            if (!pic->hwaccel_priv_buf)
205
                return AVERROR(ENOMEM);
206
            pic->hwaccel_picture_private = pic->hwaccel_priv_buf->data;
207
        }
208
    }
209
    if (CONFIG_GRAY && !h->avctx->hwaccel && h->flags & AV_CODEC_FLAG_GRAY && pic->f->data[2]) {
210
        int h_chroma_shift, v_chroma_shift;
211
        av_pix_fmt_get_chroma_sub_sample(pic->f->format,
212
                                         &h_chroma_shift, &v_chroma_shift);
213
214
        for(i=0; i<AV_CEIL_RSHIFT(pic->f->height, v_chroma_shift); i++) {
215
            memset(pic->f->data[1] + pic->f->linesize[1]*i,
216
                   0x80, AV_CEIL_RSHIFT(pic->f->width, h_chroma_shift));
217
            memset(pic->f->data[2] + pic->f->linesize[2]*i,
218
                   0x80, AV_CEIL_RSHIFT(pic->f->width, h_chroma_shift));
219
        }
220
    }
221
222
23346
    if (!h->qscale_table_pool) {
223
534
        ret = init_table_pools(h);
224
534
        if (ret < 0)
225
            goto fail;
226
    }
227
228
23346
    pic->qscale_table_buf = av_buffer_pool_get(h->qscale_table_pool);
229
23346
    pic->mb_type_buf      = av_buffer_pool_get(h->mb_type_pool);
230

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

46692
        if (!pic->motion_val_buf[i] || !pic->ref_index_buf[i])
240
            goto fail;
241
242
46692
        pic->motion_val[i] = (int16_t (*)[2])pic->motion_val_buf[i]->data + 4;
243
46692
        pic->ref_index[i]  = pic->ref_index_buf[i]->data;
244
    }
245
246
23346
    pic->pps_buf = av_buffer_ref(h->ps.pps_ref);
247
23346
    if (!pic->pps_buf)
248
        goto fail;
249
23346
    pic->pps = (const PPS*)pic->pps_buf->data;
250
251
23346
    pic->mb_width  = h->mb_width;
252
23346
    pic->mb_height = h->mb_height;
253
23346
    pic->mb_stride = h->mb_stride;
254
255
23346
    return 0;
256
fail:
257
    ff_h264_unref_picture(h, pic);
258
    return (ret < 0) ? ret : AVERROR(ENOMEM);
259
}
260
261
23346
static int find_unused_picture(H264Context *h)
262
{
263
    int i;
264
265
82041
    for (i = 0; i < H264_MAX_PICTURE_COUNT; i++) {
266
82041
        if (!h->DPB[i].f->buf[0])
267
23346
            return i;
268
    }
269
    return AVERROR_INVALIDDATA;
270
}
271
272
273
#define IN_RANGE(a, b, size) (((void*)(a) >= (void*)(b)) && ((void*)(a) < (void*)((b) + (size))))
274
275
#define REBASE_PICTURE(pic, new_ctx, old_ctx)             \
276
    (((pic) && (pic) >= (old_ctx)->DPB &&                       \
277
      (pic) < (old_ctx)->DPB + H264_MAX_PICTURE_COUNT) ?          \
278
     &(new_ctx)->DPB[(pic) - (old_ctx)->DPB] : NULL)
279
280
129
static void copy_picture_range(H264Picture **to, H264Picture **from, int count,
281
                               H264Context *new_base,
282
                               H264Context *old_base)
283
{
284
    int i;
285
286
3655
    for (i = 0; i < count; i++) {
287
        av_assert1(!from[i] ||
288
                   IN_RANGE(from[i], old_base, 1) ||
289
                   IN_RANGE(from[i], old_base->DPB, H264_MAX_PICTURE_COUNT));
290

3526
        to[i] = REBASE_PICTURE(from[i], new_base, old_base);
291
    }
292
129
}
293
294
static int h264_slice_header_init(H264Context *h);
295
296
43
int ff_h264_update_thread_context(AVCodecContext *dst,
297
                                  const AVCodecContext *src)
298
{
299
43
    H264Context *h = dst->priv_data, *h1 = src->priv_data;
300
43
    int inited = h->context_initialized, err = 0;
301
43
    int need_reinit = 0;
302
    int i, ret;
303
304
43
    if (dst == src)
305
        return 0;
306
307
    // We can't fail if SPS isn't set at it breaks current skip_frame code
308
    //if (!h1->ps.sps)
309
    //    return AVERROR_INVALIDDATA;
310
311
43
    if (inited &&
312
35
        (h->width                 != h1->width                 ||
313
35
         h->height                != h1->height                ||
314
35
         h->mb_width              != h1->mb_width              ||
315
35
         h->mb_height             != h1->mb_height             ||
316
35
         !h->ps.sps                                            ||
317
35
         h->ps.sps->bit_depth_luma    != h1->ps.sps->bit_depth_luma    ||
318
35
         h->ps.sps->chroma_format_idc != h1->ps.sps->chroma_format_idc ||
319
35
         h->ps.sps->colorspace        != h1->ps.sps->colorspace)) {
320
        need_reinit = 1;
321
    }
322
323
    /* copy block_offset since frame_start may not be called */
324
43
    memcpy(h->block_offset, h1->block_offset, sizeof(h->block_offset));
325
326
    // SPS/PPS
327
1419
    for (i = 0; i < FF_ARRAY_ELEMS(h->ps.sps_list); i++) {
328
1376
        ret = av_buffer_replace(&h->ps.sps_list[i], h1->ps.sps_list[i]);
329
1376
        if (ret < 0)
330
            return ret;
331
    }
332
11051
    for (i = 0; i < FF_ARRAY_ELEMS(h->ps.pps_list); i++) {
333
11008
        ret = av_buffer_replace(&h->ps.pps_list[i], h1->ps.pps_list[i]);
334
11008
        if (ret < 0)
335
            return ret;
336
    }
337
338
43
    ret = av_buffer_replace(&h->ps.pps_ref, h1->ps.pps_ref);
339
43
    if (ret < 0)
340
        return ret;
341
43
    h->ps.pps = NULL;
342
43
    h->ps.sps = NULL;
343
43
    if (h1->ps.pps_ref) {
344
43
        h->ps.pps = (const PPS*)h->ps.pps_ref->data;
345
43
        h->ps.sps = h->ps.pps->sps;
346
    }
347
348

43
    if (need_reinit || !inited) {
349
8
        h->width     = h1->width;
350
8
        h->height    = h1->height;
351
8
        h->mb_height = h1->mb_height;
352
8
        h->mb_width  = h1->mb_width;
353
8
        h->mb_num    = h1->mb_num;
354
8
        h->mb_stride = h1->mb_stride;
355
8
        h->b_stride  = h1->b_stride;
356
8
        h->x264_build = h1->x264_build;
357
358

8
        if (h->context_initialized || h1->context_initialized) {
359
8
            if ((err = h264_slice_header_init(h)) < 0) {
360
                av_log(h->avctx, AV_LOG_ERROR, "h264_slice_header_init() failed");
361
                return err;
362
            }
363
        }
364
365
        /* copy block_offset since frame_start may not be called */
366
8
        memcpy(h->block_offset, h1->block_offset, sizeof(h->block_offset));
367
    }
368
369
43
    h->avctx->coded_height  = h1->avctx->coded_height;
370
43
    h->avctx->coded_width   = h1->avctx->coded_width;
371
43
    h->avctx->width         = h1->avctx->width;
372
43
    h->avctx->height        = h1->avctx->height;
373
43
    h->width_from_caller    = h1->width_from_caller;
374
43
    h->height_from_caller   = h1->height_from_caller;
375
43
    h->coded_picture_number = h1->coded_picture_number;
376
43
    h->first_field          = h1->first_field;
377
43
    h->picture_structure    = h1->picture_structure;
378
43
    h->mb_aff_frame         = h1->mb_aff_frame;
379
43
    h->droppable            = h1->droppable;
380
381
1591
    for (i = 0; i < H264_MAX_PICTURE_COUNT; i++) {
382
1548
        ff_h264_unref_picture(h, &h->DPB[i]);
383

1730
        if (h1->DPB[i].f->buf[0] &&
384
182
            (ret = ff_h264_ref_picture(h, &h->DPB[i], &h1->DPB[i])) < 0)
385
            return ret;
386
    }
387
388

43
    h->cur_pic_ptr = REBASE_PICTURE(h1->cur_pic_ptr, h, h1);
389
43
    ff_h264_unref_picture(h, &h->cur_pic);
390
43
    if (h1->cur_pic.f->buf[0]) {
391
43
        ret = ff_h264_ref_picture(h, &h->cur_pic, &h1->cur_pic);
392
43
        if (ret < 0)
393
            return ret;
394
    }
395
396
43
    h->enable_er       = h1->enable_er;
397
43
    h->workaround_bugs = h1->workaround_bugs;
398
43
    h->droppable       = h1->droppable;
399
400
    // extradata/NAL handling
401
43
    h->is_avc = h1->is_avc;
402
43
    h->nal_length_size = h1->nal_length_size;
403
404
43
    memcpy(&h->poc,        &h1->poc,        sizeof(h->poc));
405
406
43
    memcpy(h->short_ref,   h1->short_ref,   sizeof(h->short_ref));
407
43
    memcpy(h->long_ref,    h1->long_ref,    sizeof(h->long_ref));
408
43
    memcpy(h->delayed_pic, h1->delayed_pic, sizeof(h->delayed_pic));
409
43
    memcpy(h->last_pocs,   h1->last_pocs,   sizeof(h->last_pocs));
410
411
43
    h->next_output_pic   = h1->next_output_pic;
412
43
    h->next_outputed_poc = h1->next_outputed_poc;
413
414
43
    memcpy(h->mmco, h1->mmco, sizeof(h->mmco));
415
43
    h->nb_mmco         = h1->nb_mmco;
416
43
    h->mmco_reset      = h1->mmco_reset;
417
43
    h->explicit_ref_marking = h1->explicit_ref_marking;
418
43
    h->long_ref_count  = h1->long_ref_count;
419
43
    h->short_ref_count = h1->short_ref_count;
420
421
43
    copy_picture_range(h->short_ref, h1->short_ref, 32, h, h1);
422
43
    copy_picture_range(h->long_ref, h1->long_ref, 32, h, h1);
423
43
    copy_picture_range(h->delayed_pic, h1->delayed_pic,
424
                       MAX_DELAYED_PIC_COUNT + 2, h, h1);
425
426
43
    h->frame_recovered       = h1->frame_recovered;
427
428
43
    ret = av_buffer_replace(&h->sei.a53_caption.buf_ref, h1->sei.a53_caption.buf_ref);
429
43
    if (ret < 0)
430
        return ret;
431
432
43
    for (i = 0; i < h->sei.unregistered.nb_buf_ref; i++)
433
        av_buffer_unref(&h->sei.unregistered.buf_ref[i]);
434
43
    h->sei.unregistered.nb_buf_ref = 0;
435
436
43
    if (h1->sei.unregistered.nb_buf_ref) {
437
        ret = av_reallocp_array(&h->sei.unregistered.buf_ref,
438
                                h1->sei.unregistered.nb_buf_ref,
439
                                sizeof(*h->sei.unregistered.buf_ref));
440
        if (ret < 0)
441
            return ret;
442
443
        for (i = 0; i < h1->sei.unregistered.nb_buf_ref; i++) {
444
            h->sei.unregistered.buf_ref[i] = av_buffer_ref(h1->sei.unregistered.buf_ref[i]);
445
            if (!h->sei.unregistered.buf_ref[i])
446
                return AVERROR(ENOMEM);
447
            h->sei.unregistered.nb_buf_ref++;
448
        }
449
    }
450
43
    h->sei.unregistered.x264_build = h1->sei.unregistered.x264_build;
451
452
43
    if (!h->cur_pic_ptr)
453
11
        return 0;
454
455
32
    if (!h->droppable) {
456
19
        err = ff_h264_execute_ref_pic_marking(h);
457
19
        h->poc.prev_poc_msb = h->poc.poc_msb;
458
19
        h->poc.prev_poc_lsb = h->poc.poc_lsb;
459
    }
460
32
    h->poc.prev_frame_num_offset = h->poc.frame_num_offset;
461
32
    h->poc.prev_frame_num        = h->poc.frame_num;
462
463
32
    h->recovery_frame        = h1->recovery_frame;
464
465
32
    return err;
466
}
467
468
23346
static int h264_frame_start(H264Context *h)
469
{
470
    H264Picture *pic;
471
    int i, ret;
472
23346
    const int pixel_shift = h->pixel_shift;
473
474
23346
    if (!ff_thread_can_start_frame(h->avctx)) {
475
        av_log(h->avctx, AV_LOG_ERROR, "Attempt to start a frame outside SETUP state\n");
476
        return -1;
477
    }
478
479
23346
    release_unused_pictures(h, 1);
480
23346
    h->cur_pic_ptr = NULL;
481
482
23346
    i = find_unused_picture(h);
483
23346
    if (i < 0) {
484
        av_log(h->avctx, AV_LOG_ERROR, "no frame buffer available\n");
485
        return i;
486
    }
487
23346
    pic = &h->DPB[i];
488
489
23346
    pic->reference              = h->droppable ? 0 : h->picture_structure;
490
23346
    pic->f->coded_picture_number = h->coded_picture_number++;
491
23346
    pic->field_picture          = h->picture_structure != PICT_FRAME;
492
23346
    pic->frame_num               = h->poc.frame_num;
493
    /*
494
     * Zero key_frame here; IDR markings per slice in frame or fields are ORed
495
     * in later.
496
     * See decode_nal_units().
497
     */
498
23346
    pic->f->key_frame = 0;
499
23346
    pic->mmco_reset  = 0;
500
23346
    pic->recovered   = 0;
501
23346
    pic->invalid_gap = 0;
502
23346
    pic->sei_recovery_frame_cnt = h->sei.recovery_point.recovery_frame_cnt;
503
504
23346
    pic->f->pict_type = h->slice_ctx[0].slice_type;
505
506
23346
    pic->f->crop_left   = h->crop_left;
507
23346
    pic->f->crop_right  = h->crop_right;
508
23346
    pic->f->crop_top    = h->crop_top;
509
23346
    pic->f->crop_bottom = h->crop_bottom;
510
511
23346
    if ((ret = alloc_picture(h, pic)) < 0)
512
        return ret;
513
514
23346
    h->cur_pic_ptr = pic;
515
23346
    ff_h264_unref_picture(h, &h->cur_pic);
516
    if (CONFIG_ERROR_RESILIENCE) {
517
23346
        ff_h264_set_erpic(&h->slice_ctx[0].er.cur_pic, NULL);
518
    }
519
520
23346
    if ((ret = ff_h264_ref_picture(h, &h->cur_pic, h->cur_pic_ptr)) < 0)
521
        return ret;
522
523
46992
    for (i = 0; i < h->nb_slice_ctx; i++) {
524
23646
        h->slice_ctx[i].linesize   = h->cur_pic_ptr->f->linesize[0];
525
23646
        h->slice_ctx[i].uvlinesize = h->cur_pic_ptr->f->linesize[1];
526
    }
527
528
23346
    if (CONFIG_ERROR_RESILIENCE && h->enable_er) {
529
23046
        ff_er_frame_start(&h->slice_ctx[0].er);
530
23046
        ff_h264_set_erpic(&h->slice_ctx[0].er.last_pic, NULL);
531
23046
        ff_h264_set_erpic(&h->slice_ctx[0].er.next_pic, NULL);
532
    }
533
534
396882
    for (i = 0; i < 16; i++) {
535
373536
        h->block_offset[i]           = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 4 * pic->f->linesize[0] * ((scan8[i] - scan8[0]) >> 3);
536
373536
        h->block_offset[48 + i]      = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 8 * pic->f->linesize[0] * ((scan8[i] - scan8[0]) >> 3);
537
    }
538
396882
    for (i = 0; i < 16; i++) {
539
373536
        h->block_offset[16 + i]      =
540
373536
        h->block_offset[32 + i]      = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 4 * pic->f->linesize[1] * ((scan8[i] - scan8[0]) >> 3);
541
373536
        h->block_offset[48 + 16 + i] =
542
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);
543
    }
544
545
    /* We mark the current picture as non-reference after allocating it, so
546
     * that if we break out due to an error it can be released automatically
547
     * in the next ff_mpv_frame_start().
548
     */
549
23346
    h->cur_pic_ptr->reference = 0;
550
551
23346
    h->cur_pic_ptr->field_poc[0] = h->cur_pic_ptr->field_poc[1] = INT_MAX;
552
553
23346
    h->next_output_pic = NULL;
554
555
23346
    h->postpone_filter = 0;
556
557

23346
    h->mb_aff_frame = h->ps.sps->mb_aff && (h->picture_structure == PICT_FRAME);
558
559
23346
    if (h->sei.unregistered.x264_build >= 0)
560
1824
        h->x264_build = h->sei.unregistered.x264_build;
561
562
    assert(h->cur_pic_ptr->long_ref == 0);
563
564
23346
    return 0;
565
}
566
567
10756383
static av_always_inline void backup_mb_border(const H264Context *h, H264SliceContext *sl,
568
                                              uint8_t *src_y,
569
                                              uint8_t *src_cb, uint8_t *src_cr,
570
                                              int linesize, int uvlinesize,
571
                                              int simple)
572
{
573
    uint8_t *top_border;
574
10756383
    int top_idx = 1;
575
10756383
    const int pixel_shift = h->pixel_shift;
576
10756383
    int chroma444 = CHROMA444(h);
577
10756383
    int chroma422 = CHROMA422(h);
578
579
10756383
    src_y  -= linesize;
580
10756383
    src_cb -= uvlinesize;
581
10756383
    src_cr -= uvlinesize;
582
583

10756383
    if (!simple && FRAME_MBAFF(h)) {
584
1814136
        if (sl->mb_y & 1) {
585
907068
            if (!MB_MBAFF(sl)) {
586
665811
                top_border = sl->top_borders[0][sl->mb_x];
587
665811
                AV_COPY128(top_border, src_y + 15 * linesize);
588
665811
                if (pixel_shift)
589
213139
                    AV_COPY128(top_border + 16, src_y + 15 * linesize + 16);
590
                if (simple || !CONFIG_GRAY || !(h->flags & AV_CODEC_FLAG_GRAY)) {
591
665811
                    if (chroma444) {
592
                        if (pixel_shift) {
593
                            AV_COPY128(top_border + 32, src_cb + 15 * uvlinesize);
594
                            AV_COPY128(top_border + 48, src_cb + 15 * uvlinesize + 16);
595
                            AV_COPY128(top_border + 64, src_cr + 15 * uvlinesize);
596
                            AV_COPY128(top_border + 80, src_cr + 15 * uvlinesize + 16);
597
                        } else {
598
                            AV_COPY128(top_border + 16, src_cb + 15 * uvlinesize);
599
                            AV_COPY128(top_border + 32, src_cr + 15 * uvlinesize);
600
                        }
601
665811
                    } else if (chroma422) {
602
106510
                        if (pixel_shift) {
603
106510
                            AV_COPY128(top_border + 32, src_cb + 15 * uvlinesize);
604
106510
                            AV_COPY128(top_border + 48, src_cr + 15 * uvlinesize);
605
                        } else {
606
                            AV_COPY64(top_border + 16, src_cb + 15 * uvlinesize);
607
                            AV_COPY64(top_border + 24, src_cr + 15 * uvlinesize);
608
                        }
609
                    } else {
610
559301
                        if (pixel_shift) {
611
106629
                            AV_COPY128(top_border + 32, src_cb + 7 * uvlinesize);
612
106629
                            AV_COPY128(top_border + 48, src_cr + 7 * uvlinesize);
613
                        } else {
614
452672
                            AV_COPY64(top_border + 16, src_cb + 7 * uvlinesize);
615
452672
                            AV_COPY64(top_border + 24, src_cr + 7 * uvlinesize);
616
                        }
617
                    }
618
                }
619
            }
620
907068
        } else if (MB_MBAFF(sl)) {
621
241257
            top_idx = 0;
622
        } else
623
665811
            return;
624
    }
625
626
10090572
    top_border = sl->top_borders[top_idx][sl->mb_x];
627
    /* There are two lines saved, the line above the top macroblock
628
     * of a pair, and the line above the bottom macroblock. */
629
10090572
    AV_COPY128(top_border, src_y + 16 * linesize);
630
10090572
    if (pixel_shift)
631
1300901
        AV_COPY128(top_border + 16, src_y + 16 * linesize + 16);
632
633
    if (simple || !CONFIG_GRAY || !(h->flags & AV_CODEC_FLAG_GRAY)) {
634
10090572
        if (chroma444) {
635
39528
            if (pixel_shift) {
636
19800
                AV_COPY128(top_border + 32, src_cb + 16 * linesize);
637
19800
                AV_COPY128(top_border + 48, src_cb + 16 * linesize + 16);
638
19800
                AV_COPY128(top_border + 64, src_cr + 16 * linesize);
639
19800
                AV_COPY128(top_border + 80, src_cr + 16 * linesize + 16);
640
            } else {
641
19728
                AV_COPY128(top_border + 16, src_cb + 16 * linesize);
642
19728
                AV_COPY128(top_border + 32, src_cr + 16 * linesize);
643
            }
644
10051044
        } else if (chroma422) {
645
588635
            if (pixel_shift) {
646
584675
                AV_COPY128(top_border + 32, src_cb + 16 * uvlinesize);
647
584675
                AV_COPY128(top_border + 48, src_cr + 16 * uvlinesize);
648
            } else {
649
3960
                AV_COPY64(top_border + 16, src_cb + 16 * uvlinesize);
650
3960
                AV_COPY64(top_border + 24, src_cr + 16 * uvlinesize);
651
            }
652
        } else {
653
9462409
            if (pixel_shift) {
654
696426
                AV_COPY128(top_border + 32, src_cb + 8 * uvlinesize);
655
696426
                AV_COPY128(top_border + 48, src_cr + 8 * uvlinesize);
656
            } else {
657
8765983
                AV_COPY64(top_border + 16, src_cb + 8 * uvlinesize);
658
8765983
                AV_COPY64(top_border + 24, src_cr + 8 * uvlinesize);
659
            }
660
        }
661
    }
662
}
663
664
/**
665
 * Initialize implicit_weight table.
666
 * @param field  0/1 initialize the weight for interlaced MBAFF
667
 *                -1 initializes the rest
668
 */
669
3299
static void implicit_weight_table(const H264Context *h, H264SliceContext *sl, int field)
670
{
671
    int ref0, ref1, i, cur_poc, ref_start, ref_count0, ref_count1;
672
673
9897
    for (i = 0; i < 2; i++) {
674
6598
        sl->pwt.luma_weight_flag[i]   = 0;
675
6598
        sl->pwt.chroma_weight_flag[i] = 0;
676
    }
677
678
3299
    if (field < 0) {
679
1589
        if (h->picture_structure == PICT_FRAME) {
680
1589
            cur_poc = h->cur_pic_ptr->poc;
681
        } else {
682
            cur_poc = h->cur_pic_ptr->field_poc[h->picture_structure - 1];
683
        }
684

1589
        if (sl->ref_count[0] == 1 && sl->ref_count[1] == 1 && !FRAME_MBAFF(h) &&
685
97
            sl->ref_list[0][0].poc + (int64_t)sl->ref_list[1][0].poc == 2LL * cur_poc) {
686
34
            sl->pwt.use_weight        = 0;
687
34
            sl->pwt.use_weight_chroma = 0;
688
34
            return;
689
        }
690
1555
        ref_start  = 0;
691
1555
        ref_count0 = sl->ref_count[0];
692
1555
        ref_count1 = sl->ref_count[1];
693
    } else {
694
1710
        cur_poc    = h->cur_pic_ptr->field_poc[field];
695
1710
        ref_start  = 16;
696
1710
        ref_count0 = 16 + 2 * sl->ref_count[0];
697
1710
        ref_count1 = 16 + 2 * sl->ref_count[1];
698
    }
699
700
3265
    sl->pwt.use_weight               = 2;
701
3265
    sl->pwt.use_weight_chroma        = 2;
702
3265
    sl->pwt.luma_log2_weight_denom   = 5;
703
3265
    sl->pwt.chroma_log2_weight_denom = 5;
704
705
14879
    for (ref0 = ref_start; ref0 < ref_count0; ref0++) {
706
11614
        int64_t poc0 = sl->ref_list[0][ref0].poc;
707
33317
        for (ref1 = ref_start; ref1 < ref_count1; ref1++) {
708
21703
            int w = 32;
709

21703
            if (!sl->ref_list[0][ref0].parent->long_ref && !sl->ref_list[1][ref1].parent->long_ref) {
710
21703
                int poc1 = sl->ref_list[1][ref1].poc;
711
21703
                int td   = av_clip_int8(poc1 - poc0);
712
21703
                if (td) {
713
21637
                    int tb = av_clip_int8(cur_poc - poc0);
714
21637
                    int tx = (16384 + (FFABS(td) >> 1)) / td;
715
21637
                    int dist_scale_factor = (tb * tx + 32) >> 8;
716

21637
                    if (dist_scale_factor >= -64 && dist_scale_factor <= 128)
717
21633
                        w = 64 - dist_scale_factor;
718
                }
719
            }
720
21703
            if (field < 0) {
721
5823
                sl->pwt.implicit_weight[ref0][ref1][0] =
722
5823
                sl->pwt.implicit_weight[ref0][ref1][1] = w;
723
            } else {
724
15880
                sl->pwt.implicit_weight[ref0][ref1][field] = w;
725
            }
726
        }
727
    }
728
}
729
730
/**
731
 * initialize scan tables
732
 */
733
534
static void init_scan_tables(H264Context *h)
734
{
735
    int i;
736
9078
    for (i = 0; i < 16; i++) {
737
#define TRANSPOSE(x) ((x) >> 2) | (((x) << 2) & 0xF)
738
8544
        h->zigzag_scan[i] = TRANSPOSE(ff_zigzag_scan[i]);
739
8544
        h->field_scan[i]  = TRANSPOSE(field_scan[i]);
740
#undef TRANSPOSE
741
    }
742
34710
    for (i = 0; i < 64; i++) {
743
#define TRANSPOSE(x) ((x) >> 3) | (((x) & 7) << 3)
744
34176
        h->zigzag_scan8x8[i]       = TRANSPOSE(ff_zigzag_direct[i]);
745
34176
        h->zigzag_scan8x8_cavlc[i] = TRANSPOSE(zigzag_scan8x8_cavlc[i]);
746
34176
        h->field_scan8x8[i]        = TRANSPOSE(field_scan8x8[i]);
747
34176
        h->field_scan8x8_cavlc[i]  = TRANSPOSE(field_scan8x8_cavlc[i]);
748
#undef TRANSPOSE
749
    }
750
534
    if (h->ps.sps->transform_bypass) { // FIXME same ugly
751
12
        memcpy(h->zigzag_scan_q0          , ff_zigzag_scan          , sizeof(h->zigzag_scan_q0         ));
752
12
        memcpy(h->zigzag_scan8x8_q0       , ff_zigzag_direct        , sizeof(h->zigzag_scan8x8_q0      ));
753
12
        memcpy(h->zigzag_scan8x8_cavlc_q0 , zigzag_scan8x8_cavlc    , sizeof(h->zigzag_scan8x8_cavlc_q0));
754
12
        memcpy(h->field_scan_q0           , field_scan              , sizeof(h->field_scan_q0          ));
755
12
        memcpy(h->field_scan8x8_q0        , field_scan8x8           , sizeof(h->field_scan8x8_q0       ));
756
12
        memcpy(h->field_scan8x8_cavlc_q0  , field_scan8x8_cavlc     , sizeof(h->field_scan8x8_cavlc_q0 ));
757
    } else {
758
522
        memcpy(h->zigzag_scan_q0          , h->zigzag_scan          , sizeof(h->zigzag_scan_q0         ));
759
522
        memcpy(h->zigzag_scan8x8_q0       , h->zigzag_scan8x8       , sizeof(h->zigzag_scan8x8_q0      ));
760
522
        memcpy(h->zigzag_scan8x8_cavlc_q0 , h->zigzag_scan8x8_cavlc , sizeof(h->zigzag_scan8x8_cavlc_q0));
761
522
        memcpy(h->field_scan_q0           , h->field_scan           , sizeof(h->field_scan_q0          ));
762
522
        memcpy(h->field_scan8x8_q0        , h->field_scan8x8        , sizeof(h->field_scan8x8_q0       ));
763
522
        memcpy(h->field_scan8x8_cavlc_q0  , h->field_scan8x8_cavlc  , sizeof(h->field_scan8x8_cavlc_q0 ));
764
    }
765
534
}
766
767
26147
static enum AVPixelFormat get_pixel_format(H264Context *h, int force_callback)
768
{
769
#define HWACCEL_MAX (CONFIG_H264_DXVA2_HWACCEL + \
770
                     (CONFIG_H264_D3D11VA_HWACCEL * 2) + \
771
                     CONFIG_H264_NVDEC_HWACCEL + \
772
                     CONFIG_H264_VAAPI_HWACCEL + \
773
                     CONFIG_H264_VIDEOTOOLBOX_HWACCEL + \
774
                     CONFIG_H264_VDPAU_HWACCEL)
775
26147
    enum AVPixelFormat pix_fmts[HWACCEL_MAX + 2], *fmt = pix_fmts;
776
26147
    const enum AVPixelFormat *choices = pix_fmts;
777
    int i;
778
779

26147
    switch (h->ps.sps->bit_depth_luma) {
780
155
    case 9:
781
155
        if (CHROMA444(h)) {
782
            if (h->avctx->colorspace == AVCOL_SPC_RGB) {
783
                *fmt++ = AV_PIX_FMT_GBRP9;
784
            } else
785
                *fmt++ = AV_PIX_FMT_YUV444P9;
786
155
        } else if (CHROMA422(h))
787
52
            *fmt++ = AV_PIX_FMT_YUV422P9;
788
        else
789
103
            *fmt++ = AV_PIX_FMT_YUV420P9;
790
155
        break;
791
355
    case 10:
792
355
        if (CHROMA444(h)) {
793
51
            if (h->avctx->colorspace == AVCOL_SPC_RGB) {
794
                *fmt++ = AV_PIX_FMT_GBRP10;
795
            } else
796
51
                *fmt++ = AV_PIX_FMT_YUV444P10;
797
304
        } else if (CHROMA422(h))
798
164
            *fmt++ = AV_PIX_FMT_YUV422P10;
799
        else
800
140
            *fmt++ = AV_PIX_FMT_YUV420P10;
801
355
        break;
802
    case 12:
803
        if (CHROMA444(h)) {
804
            if (h->avctx->colorspace == AVCOL_SPC_RGB) {
805
                *fmt++ = AV_PIX_FMT_GBRP12;
806
            } else
807
                *fmt++ = AV_PIX_FMT_YUV444P12;
808
        } else if (CHROMA422(h))
809
            *fmt++ = AV_PIX_FMT_YUV422P12;
810
        else
811
            *fmt++ = AV_PIX_FMT_YUV420P12;
812
        break;
813
    case 14:
814
        if (CHROMA444(h)) {
815
            if (h->avctx->colorspace == AVCOL_SPC_RGB) {
816
                *fmt++ = AV_PIX_FMT_GBRP14;
817
            } else
818
                *fmt++ = AV_PIX_FMT_YUV444P14;
819
        } else if (CHROMA422(h))
820
            *fmt++ = AV_PIX_FMT_YUV422P14;
821
        else
822
            *fmt++ = AV_PIX_FMT_YUV420P14;
823
        break;
824
25637
    case 8:
825
#if CONFIG_H264_VDPAU_HWACCEL
826
25637
        *fmt++ = AV_PIX_FMT_VDPAU;
827
#endif
828
#if CONFIG_H264_NVDEC_HWACCEL
829
        *fmt++ = AV_PIX_FMT_CUDA;
830
#endif
831
25637
        if (CHROMA444(h)) {
832
400
            if (h->avctx->colorspace == AVCOL_SPC_RGB)
833
                *fmt++ = AV_PIX_FMT_GBRP;
834
400
            else if (h->avctx->color_range == AVCOL_RANGE_JPEG)
835
                *fmt++ = AV_PIX_FMT_YUVJ444P;
836
            else
837
400
                *fmt++ = AV_PIX_FMT_YUV444P;
838
25237
        } else if (CHROMA422(h)) {
839
22
            if (h->avctx->color_range == AVCOL_RANGE_JPEG)
840
                *fmt++ = AV_PIX_FMT_YUVJ422P;
841
            else
842
22
                *fmt++ = AV_PIX_FMT_YUV422P;
843
        } else {
844
#if CONFIG_H264_DXVA2_HWACCEL
845
            *fmt++ = AV_PIX_FMT_DXVA2_VLD;
846
#endif
847
#if CONFIG_H264_D3D11VA_HWACCEL
848
            *fmt++ = AV_PIX_FMT_D3D11VA_VLD;
849
            *fmt++ = AV_PIX_FMT_D3D11;
850
#endif
851
#if CONFIG_H264_VAAPI_HWACCEL
852
25215
            *fmt++ = AV_PIX_FMT_VAAPI;
853
#endif
854
#if CONFIG_H264_VIDEOTOOLBOX_HWACCEL
855
            *fmt++ = AV_PIX_FMT_VIDEOTOOLBOX;
856
#endif
857
25215
            if (h->avctx->codec->pix_fmts)
858
                choices = h->avctx->codec->pix_fmts;
859
25215
            else if (h->avctx->color_range == AVCOL_RANGE_JPEG)
860
3
                *fmt++ = AV_PIX_FMT_YUVJ420P;
861
            else
862
25212
                *fmt++ = AV_PIX_FMT_YUV420P;
863
        }
864
25637
        break;
865
    default:
866
        av_log(h->avctx, AV_LOG_ERROR,
867
               "Unsupported bit depth %d\n", h->ps.sps->bit_depth_luma);
868
        return AVERROR_INVALIDDATA;
869
    }
870
871
26147
    *fmt = AV_PIX_FMT_NONE;
872
873
77528
    for (i=0; choices[i] != AV_PIX_FMT_NONE; i++)
874

76999
        if (choices[i] == h->avctx->pix_fmt && !force_callback)
875
25618
            return choices[i];
876
529
    return ff_thread_get_format(h->avctx, choices);
877
}
878
879
/* export coded and cropped frame dimensions to AVCodecContext */
880
25907
static void init_dimensions(H264Context *h)
881
{
882
25907
    const SPS *sps = (const SPS*)h->ps.sps;
883
25907
    int cr = sps->crop_right;
884
25907
    int cl = sps->crop_left;
885
25907
    int ct = sps->crop_top;
886
25907
    int cb = sps->crop_bottom;
887
25907
    int width  = h->width  - (cr + cl);
888
25907
    int height = h->height - (ct + cb);
889
25907
    av_assert0(sps->crop_right + sps->crop_left < (unsigned)h->width);
890
25907
    av_assert0(sps->crop_top + sps->crop_bottom < (unsigned)h->height);
891
892
    /* handle container cropping */
893

25907
    if (h->width_from_caller > 0 && h->height_from_caller > 0     &&
894

23712
        !sps->crop_top && !sps->crop_left                         &&
895
23711
        FFALIGN(h->width_from_caller,  16) == FFALIGN(width,  16) &&
896
23706
        FFALIGN(h->height_from_caller, 16) == FFALIGN(height, 16) &&
897
23706
        h->width_from_caller  <= width &&
898
23706
        h->height_from_caller <= height) {
899
23705
        width  = h->width_from_caller;
900
23705
        height = h->height_from_caller;
901
23705
        cl = 0;
902
23705
        ct = 0;
903
23705
        cr = h->width - width;
904
23705
        cb = h->height - height;
905
    } else {
906
2202
        h->width_from_caller  = 0;
907
2202
        h->height_from_caller = 0;
908
    }
909
910
25907
    h->avctx->coded_width  = h->width;
911
25907
    h->avctx->coded_height = h->height;
912
25907
    h->avctx->width        = width;
913
25907
    h->avctx->height       = height;
914
25907
    h->crop_right          = cr;
915
25907
    h->crop_left           = cl;
916
25907
    h->crop_top            = ct;
917
25907
    h->crop_bottom         = cb;
918
25907
}
919
920
534
static int h264_slice_header_init(H264Context *h)
921
{
922
534
    const SPS *sps = h->ps.sps;
923
    int i, ret;
924
925
534
    ff_set_sar(h->avctx, sps->sar);
926
534
    av_pix_fmt_get_chroma_sub_sample(h->avctx->pix_fmt,
927
                                     &h->chroma_x_shift, &h->chroma_y_shift);
928
929
534
    if (sps->timing_info_present_flag) {
930
131
        int64_t den = sps->time_scale;
931
131
        if (h->x264_build < 44U)
932
            den *= 2;
933
131
        av_reduce(&h->avctx->framerate.den, &h->avctx->framerate.num,
934
131
                  sps->num_units_in_tick * h->avctx->ticks_per_frame, den, 1 << 30);
935
    }
936
937
534
    ff_h264_free_tables(h);
938
939
534
    h->first_field           = 0;
940
534
    h->prev_interlaced_frame = 1;
941
942
534
    init_scan_tables(h);
943
534
    ret = ff_h264_alloc_tables(h);
944
534
    if (ret < 0) {
945
        av_log(h->avctx, AV_LOG_ERROR, "Could not allocate memory\n");
946
        goto fail;
947
    }
948
949

534
    if (sps->bit_depth_luma < 8 || sps->bit_depth_luma > 14 ||
950

534
        sps->bit_depth_luma == 11 || sps->bit_depth_luma == 13
951
    ) {
952
        av_log(h->avctx, AV_LOG_ERROR, "Unsupported bit depth %d\n",
953
               sps->bit_depth_luma);
954
        ret = AVERROR_INVALIDDATA;
955
        goto fail;
956
    }
957
958
534
    h->cur_bit_depth_luma         =
959
534
    h->avctx->bits_per_raw_sample = sps->bit_depth_luma;
960
534
    h->cur_chroma_format_idc      = sps->chroma_format_idc;
961
534
    h->pixel_shift                = sps->bit_depth_luma > 8;
962
534
    h->chroma_format_idc          = sps->chroma_format_idc;
963
534
    h->bit_depth_luma             = sps->bit_depth_luma;
964
965
534
    ff_h264dsp_init(&h->h264dsp, sps->bit_depth_luma,
966
                    sps->chroma_format_idc);
967
534
    ff_h264chroma_init(&h->h264chroma, sps->bit_depth_chroma);
968
534
    ff_h264qpel_init(&h->h264qpel, sps->bit_depth_luma);
969
534
    ff_h264_pred_init(&h->hpc, h->avctx->codec_id, sps->bit_depth_luma,
970
                      sps->chroma_format_idc);
971
534
    ff_videodsp_init(&h->vdsp, sps->bit_depth_luma);
972
973
534
    if (!HAVE_THREADS || !(h->avctx->active_thread_type & FF_THREAD_SLICE)) {
974
533
        ret = ff_h264_slice_context_init(h, &h->slice_ctx[0]);
975
533
        if (ret < 0) {
976
            av_log(h->avctx, AV_LOG_ERROR, "context_init() failed.\n");
977
            goto fail;
978
        }
979
    } else {
980
3
        for (i = 0; i < h->nb_slice_ctx; i++) {
981
2
            H264SliceContext *sl = &h->slice_ctx[i];
982
983
2
            sl->h264               = h;
984
2
            sl->intra4x4_pred_mode = h->intra4x4_pred_mode + i * 8 * 2 * h->mb_stride;
985
2
            sl->mvd_table[0]       = h->mvd_table[0]       + i * 8 * 2 * h->mb_stride;
986
2
            sl->mvd_table[1]       = h->mvd_table[1]       + i * 8 * 2 * h->mb_stride;
987
988
2
            if ((ret = ff_h264_slice_context_init(h, sl)) < 0) {
989
                av_log(h->avctx, AV_LOG_ERROR, "context_init() failed.\n");
990
                goto fail;
991
            }
992
        }
993
    }
994
995
534
    h->context_initialized = 1;
996
997
534
    return 0;
998
fail:
999
    ff_h264_free_tables(h);
1000
    h->context_initialized = 0;
1001
    return ret;
1002
}
1003
1004
51242
static enum AVPixelFormat non_j_pixfmt(enum AVPixelFormat a)
1005
{
1006

51242
    switch (a) {
1007
2
    case AV_PIX_FMT_YUVJ420P: return AV_PIX_FMT_YUV420P;
1008
    case AV_PIX_FMT_YUVJ422P: return AV_PIX_FMT_YUV422P;
1009
    case AV_PIX_FMT_YUVJ444P: return AV_PIX_FMT_YUV444P;
1010
51240
    default:
1011
51240
        return a;
1012
    }
1013
}
1014
1015
25907
static int h264_init_ps(H264Context *h, const H264SliceContext *sl, int first_slice)
1016
{
1017
    const SPS *sps;
1018
25907
    int needs_reinit = 0, must_reinit, ret;
1019
1020
25907
    if (first_slice) {
1021
25714
        av_buffer_unref(&h->ps.pps_ref);
1022
25714
        h->ps.pps = NULL;
1023
25714
        h->ps.pps_ref = av_buffer_ref(h->ps.pps_list[sl->pps_id]);
1024
25714
        if (!h->ps.pps_ref)
1025
            return AVERROR(ENOMEM);
1026
25714
        h->ps.pps = (const PPS*)h->ps.pps_ref->data;
1027
    }
1028
1029
25907
    if (h->ps.sps != h->ps.pps->sps) {
1030
530
        h->ps.sps = (const SPS*)h->ps.pps->sps;
1031
1032
530
        if (h->mb_width  != h->ps.sps->mb_width ||
1033
6
            h->mb_height != h->ps.sps->mb_height ||
1034
6
            h->cur_bit_depth_luma    != h->ps.sps->bit_depth_luma ||
1035
5
            h->cur_chroma_format_idc != h->ps.sps->chroma_format_idc
1036
        )
1037
526
            needs_reinit = 1;
1038
1039
530
        if (h->bit_depth_luma    != h->ps.sps->bit_depth_luma ||
1040
8
            h->chroma_format_idc != h->ps.sps->chroma_format_idc)
1041
523
            needs_reinit         = 1;
1042
    }
1043
25907
    sps = h->ps.sps;
1044
1045
51294
    must_reinit = (h->context_initialized &&
1046
25387
                    (   16*sps->mb_width != h->avctx->coded_width
1047
25383
                     || 16*sps->mb_height != h->avctx->coded_height
1048
25383
                     || h->cur_bit_depth_luma    != sps->bit_depth_luma
1049
25382
                     || h->cur_chroma_format_idc != sps->chroma_format_idc
1050
25381
                     || h->mb_width  != sps->mb_width
1051
25381
                     || h->mb_height != sps->mb_height
1052
                    ));
1053
25907
    if (h->avctx->pix_fmt == AV_PIX_FMT_NONE
1054
25621
        || (non_j_pixfmt(h->avctx->pix_fmt) != non_j_pixfmt(get_pixel_format(h, 0))))
1055
289
        must_reinit = 1;
1056
1057

25907
    if (first_slice && av_cmp_q(sps->sar, h->avctx->sample_aspect_ratio))
1058
48
        must_reinit = 1;
1059
1060
25907
    if (!h->setup_finished) {
1061
25907
        h->avctx->profile = ff_h264_get_profile(sps);
1062
25907
        h->avctx->level   = sps->level_idc;
1063
25907
        h->avctx->refs    = sps->ref_frame_count;
1064
1065
25907
        h->mb_width  = sps->mb_width;
1066
25907
        h->mb_height = sps->mb_height;
1067
25907
        h->mb_num    = h->mb_width * h->mb_height;
1068
25907
        h->mb_stride = h->mb_width + 1;
1069
1070
25907
        h->b_stride = h->mb_width * 4;
1071
1072
25907
        h->chroma_y_shift = sps->chroma_format_idc <= 1; // 400 uses yuv420p
1073
1074
25907
        h->width  = 16 * h->mb_width;
1075
25907
        h->height = 16 * h->mb_height;
1076
1077
25907
        init_dimensions(h);
1078
1079
25907
        if (sps->video_signal_type_present_flag) {
1080
1338
            h->avctx->color_range = sps->full_range > 0 ? AVCOL_RANGE_JPEG
1081
669
                                                        : AVCOL_RANGE_MPEG;
1082
669
            if (sps->colour_description_present_flag) {
1083
571
                if (h->avctx->colorspace != sps->colorspace)
1084
13
                    needs_reinit = 1;
1085
571
                h->avctx->color_primaries = sps->color_primaries;
1086
571
                h->avctx->color_trc       = sps->color_trc;
1087
571
                h->avctx->colorspace      = sps->colorspace;
1088
            }
1089
        }
1090
1091

25907
        if (h->sei.alternative_transfer.present &&
1092
            av_color_transfer_name(h->sei.alternative_transfer.preferred_transfer_characteristics) &&
1093
            h->sei.alternative_transfer.preferred_transfer_characteristics != AVCOL_TRC_UNSPECIFIED) {
1094
            h->avctx->color_trc = h->sei.alternative_transfer.preferred_transfer_characteristics;
1095
        }
1096
    }
1097
25907
    h->avctx->chroma_sample_location = sps->chroma_location;
1098
1099

25907
    if (!h->context_initialized || must_reinit || needs_reinit) {
1100
526
        int flush_changes = h->context_initialized;
1101
526
        h->context_initialized = 0;
1102
526
        if (sl != h->slice_ctx) {
1103
            av_log(h->avctx, AV_LOG_ERROR,
1104
                   "changing width %d -> %d / height %d -> %d on "
1105
                   "slice %d\n",
1106
                   h->width, h->avctx->coded_width,
1107
                   h->height, h->avctx->coded_height,
1108
                   h->current_slice + 1);
1109
            return AVERROR_INVALIDDATA;
1110
        }
1111
1112
        av_assert1(first_slice);
1113
1114
526
        if (flush_changes)
1115
6
            ff_h264_flush_change(h);
1116
1117
526
        if ((ret = get_pixel_format(h, 1)) < 0)
1118
            return ret;
1119
526
        h->avctx->pix_fmt = ret;
1120
1121
526
        av_log(h->avctx, AV_LOG_VERBOSE, "Reinit context to %dx%d, "
1122
526
               "pix_fmt: %s\n", h->width, h->height, av_get_pix_fmt_name(h->avctx->pix_fmt));
1123
1124
526
        if ((ret = h264_slice_header_init(h)) < 0) {
1125
            av_log(h->avctx, AV_LOG_ERROR,
1126
                   "h264_slice_header_init() failed\n");
1127
            return ret;
1128
        }
1129
    }
1130
1131
25907
    return 0;
1132
}
1133
1134
22670
static int h264_export_frame_props(H264Context *h)
1135
{
1136
22670
    const SPS *sps = h->ps.sps;
1137
22670
    H264Picture *cur = h->cur_pic_ptr;
1138
22670
    AVFrame *out = cur->f;
1139
1140
22670
    out->interlaced_frame = 0;
1141
22670
    out->repeat_pict      = 0;
1142
1143
    /* Signal interlacing information externally. */
1144
    /* Prioritize picture timing SEI information over used
1145
     * decoding process if it exists. */
1146
22670
    if (h->sei.picture_timing.present) {
1147
1259
        int ret = ff_h264_sei_process_picture_timing(&h->sei.picture_timing, sps,
1148
1259
                                                     h->avctx);
1149
1259
        if (ret < 0) {
1150
            av_log(h->avctx, AV_LOG_ERROR, "Error processing a picture timing SEI\n");
1151
            if (h->avctx->err_recognition & AV_EF_EXPLODE)
1152
                return ret;
1153
            h->sei.picture_timing.present = 0;
1154
        }
1155
    }
1156
1157

23921
    if (sps->pic_struct_present_flag && h->sei.picture_timing.present) {
1158
1251
        H264SEIPictureTiming *pt = &h->sei.picture_timing;
1159

1251
        switch (pt->pic_struct) {
1160
132
        case H264_SEI_PIC_STRUCT_FRAME:
1161
132
            break;
1162
248
        case H264_SEI_PIC_STRUCT_TOP_FIELD:
1163
        case H264_SEI_PIC_STRUCT_BOTTOM_FIELD:
1164
248
            out->interlaced_frame = 1;
1165
248
            break;
1166
704
        case H264_SEI_PIC_STRUCT_TOP_BOTTOM:
1167
        case H264_SEI_PIC_STRUCT_BOTTOM_TOP:
1168

704
            if (FIELD_OR_MBAFF_PICTURE(h))
1169
700
                out->interlaced_frame = 1;
1170
            else
1171
                // try to flag soft telecine progressive
1172
4
                out->interlaced_frame = h->prev_interlaced_frame;
1173
704
            break;
1174
167
        case H264_SEI_PIC_STRUCT_TOP_BOTTOM_TOP:
1175
        case H264_SEI_PIC_STRUCT_BOTTOM_TOP_BOTTOM:
1176
            /* Signal the possibility of telecined film externally
1177
             * (pic_struct 5,6). From these hints, let the applications
1178
             * decide if they apply deinterlacing. */
1179
167
            out->repeat_pict = 1;
1180
167
            break;
1181
        case H264_SEI_PIC_STRUCT_FRAME_DOUBLING:
1182
            out->repeat_pict = 2;
1183
            break;
1184
        case H264_SEI_PIC_STRUCT_FRAME_TRIPLING:
1185
            out->repeat_pict = 4;
1186
            break;
1187
        }
1188
1189
1251
        if ((pt->ct_type & 3) &&
1190
651
            pt->pic_struct <= H264_SEI_PIC_STRUCT_BOTTOM_TOP)
1191
487
            out->interlaced_frame = (pt->ct_type & (1 << 1)) != 0;
1192
    } else {
1193
        /* Derive interlacing flag from used decoding process. */
1194

21419
        out->interlaced_frame = FIELD_OR_MBAFF_PICTURE(h);
1195
    }
1196
22670
    h->prev_interlaced_frame = out->interlaced_frame;
1197
1198
22670
    if (cur->field_poc[0] != cur->field_poc[1]) {
1199
        /* Derive top_field_first from field pocs. */
1200
3169
        out->top_field_first = cur->field_poc[0] < cur->field_poc[1];
1201
    } else {
1202

19501
        if (sps->pic_struct_present_flag && h->sei.picture_timing.present) {
1203
            /* Use picture timing SEI information. Even if it is a
1204
             * information of a past frame, better than nothing. */
1205
139
            if (h->sei.picture_timing.pic_struct == H264_SEI_PIC_STRUCT_TOP_BOTTOM ||
1206
138
                h->sei.picture_timing.pic_struct == H264_SEI_PIC_STRUCT_TOP_BOTTOM_TOP)
1207
3
                out->top_field_first = 1;
1208
            else
1209
136
                out->top_field_first = 0;
1210
19362
        } else if (out->interlaced_frame) {
1211
            /* Default to top field first when pic_struct_present_flag
1212
             * is not set but interlaced frame detected */
1213
2554
            out->top_field_first = 1;
1214
        } else {
1215
            /* Most likely progressive */
1216
16808
            out->top_field_first = 0;
1217
        }
1218
    }
1219
1220
22670
    if (h->sei.frame_packing.present &&
1221
        h->sei.frame_packing.arrangement_type <= 6 &&
1222
        h->sei.frame_packing.content_interpretation_type > 0 &&
1223
        h->sei.frame_packing.content_interpretation_type < 3) {
1224
        H264SEIFramePacking *fp = &h->sei.frame_packing;
1225
        AVStereo3D *stereo = av_stereo3d_create_side_data(out);
1226
        if (stereo) {
1227
        switch (fp->arrangement_type) {
1228
        case H264_SEI_FPA_TYPE_CHECKERBOARD:
1229
            stereo->type = AV_STEREO3D_CHECKERBOARD;
1230
            break;
1231
        case H264_SEI_FPA_TYPE_INTERLEAVE_COLUMN:
1232
            stereo->type = AV_STEREO3D_COLUMNS;
1233
            break;
1234
        case H264_SEI_FPA_TYPE_INTERLEAVE_ROW:
1235
            stereo->type = AV_STEREO3D_LINES;
1236
            break;
1237
        case H264_SEI_FPA_TYPE_SIDE_BY_SIDE:
1238
            if (fp->quincunx_sampling_flag)
1239
                stereo->type = AV_STEREO3D_SIDEBYSIDE_QUINCUNX;
1240
            else
1241
                stereo->type = AV_STEREO3D_SIDEBYSIDE;
1242
            break;
1243
        case H264_SEI_FPA_TYPE_TOP_BOTTOM:
1244
            stereo->type = AV_STEREO3D_TOPBOTTOM;
1245
            break;
1246
        case H264_SEI_FPA_TYPE_INTERLEAVE_TEMPORAL:
1247
            stereo->type = AV_STEREO3D_FRAMESEQUENCE;
1248
            break;
1249
        case H264_SEI_FPA_TYPE_2D:
1250
            stereo->type = AV_STEREO3D_2D;
1251
            break;
1252
        }
1253
1254
        if (fp->content_interpretation_type == 2)
1255
            stereo->flags = AV_STEREO3D_FLAG_INVERT;
1256
1257
        if (fp->arrangement_type == H264_SEI_FPA_TYPE_INTERLEAVE_TEMPORAL) {
1258
            if (fp->current_frame_is_frame0_flag)
1259
                stereo->view = AV_STEREO3D_VIEW_LEFT;
1260
            else
1261
                stereo->view = AV_STEREO3D_VIEW_RIGHT;
1262
        }
1263
        }
1264
    }
1265
1266
22670
    if (h->sei.display_orientation.present &&
1267
1
        (h->sei.display_orientation.anticlockwise_rotation ||
1268
1
         h->sei.display_orientation.hflip ||
1269
1
         h->sei.display_orientation.vflip)) {
1270
        H264SEIDisplayOrientation *o = &h->sei.display_orientation;
1271
        double angle = o->anticlockwise_rotation * 360 / (double) (1 << 16);
1272
        AVFrameSideData *rotation = av_frame_new_side_data(out,
1273
                                                           AV_FRAME_DATA_DISPLAYMATRIX,
1274
                                                           sizeof(int32_t) * 9);
1275
        if (rotation) {
1276
            av_display_rotation_set((int32_t *)rotation->data, angle);
1277
            av_display_matrix_flip((int32_t *)rotation->data,
1278
                                   o->hflip, o->vflip);
1279
        }
1280
    }
1281
1282
22670
    if (h->sei.afd.present) {
1283
140
        AVFrameSideData *sd = av_frame_new_side_data(out, AV_FRAME_DATA_AFD,
1284
                                                     sizeof(uint8_t));
1285
1286
140
        if (sd) {
1287
140
            *sd->data = h->sei.afd.active_format_description;
1288
140
            h->sei.afd.present = 0;
1289
        }
1290
    }
1291
1292
22670
    if (h->sei.a53_caption.buf_ref) {
1293
1
        H264SEIA53Caption *a53 = &h->sei.a53_caption;
1294
1295
1
        AVFrameSideData *sd = av_frame_new_side_data_from_buf(out, AV_FRAME_DATA_A53_CC, a53->buf_ref);
1296
1
        if (!sd)
1297
            av_buffer_unref(&a53->buf_ref);
1298
1
        a53->buf_ref = NULL;
1299
1300
1
        h->avctx->properties |= FF_CODEC_PROPERTY_CLOSED_CAPTIONS;
1301
    }
1302
1303
22839
    for (int i = 0; i < h->sei.unregistered.nb_buf_ref; i++) {
1304
169
        H264SEIUnregistered *unreg = &h->sei.unregistered;
1305
1306
169
        if (unreg->buf_ref[i]) {
1307
169
            AVFrameSideData *sd = av_frame_new_side_data_from_buf(out,
1308
                    AV_FRAME_DATA_SEI_UNREGISTERED,
1309
169
                    unreg->buf_ref[i]);
1310
169
            if (!sd)
1311
                av_buffer_unref(&unreg->buf_ref[i]);
1312
169
            unreg->buf_ref[i] = NULL;
1313
        }
1314
    }
1315
22670
    h->sei.unregistered.nb_buf_ref = 0;
1316
1317
22670
    if (h->sei.picture_timing.timecode_cnt > 0) {
1318
        uint32_t *tc_sd;
1319
        char tcbuf[AV_TIMECODE_STR_SIZE];
1320
1321
651
        AVFrameSideData *tcside = av_frame_new_side_data(out,
1322
                                                         AV_FRAME_DATA_S12M_TIMECODE,
1323
                                                         sizeof(uint32_t)*4);
1324
651
        if (!tcside)
1325
            return AVERROR(ENOMEM);
1326
1327
651
        tc_sd = (uint32_t*)tcside->data;
1328
651
        tc_sd[0] = h->sei.picture_timing.timecode_cnt;
1329
1330
1603
        for (int i = 0; i < tc_sd[0]; i++) {
1331
952
            int drop = h->sei.picture_timing.timecode[i].dropframe;
1332
952
            int   hh = h->sei.picture_timing.timecode[i].hours;
1333
952
            int   mm = h->sei.picture_timing.timecode[i].minutes;
1334
952
            int   ss = h->sei.picture_timing.timecode[i].seconds;
1335
952
            int   ff = h->sei.picture_timing.timecode[i].frame;
1336
1337
952
            tc_sd[i + 1] = av_timecode_get_smpte(h->avctx->framerate, drop, hh, mm, ss, ff);
1338
952
            av_timecode_make_smpte_tc_string2(tcbuf, h->avctx->framerate, tc_sd[i + 1], 0, 0);
1339
952
            av_dict_set(&out->metadata, "timecode", tcbuf, 0);
1340
        }
1341
651
        h->sei.picture_timing.timecode_cnt = 0;
1342
    }
1343
1344
22670
    return 0;
1345
}
1346
1347
22670
static int h264_select_output_frame(H264Context *h)
1348
{
1349
22670
    const SPS *sps = h->ps.sps;
1350
22670
    H264Picture *out = h->cur_pic_ptr;
1351
22670
    H264Picture *cur = h->cur_pic_ptr;
1352
    int i, pics, out_of_order, out_idx;
1353
1354
22670
    cur->mmco_reset = h->mmco_reset;
1355
22670
    h->mmco_reset = 0;
1356
1357
22670
    if (sps->bitstream_restriction_flag ||
1358
19360
        h->avctx->strict_std_compliance >= FF_COMPLIANCE_STRICT) {
1359
3310
        h->avctx->has_b_frames = FFMAX(h->avctx->has_b_frames, sps->num_reorder_frames);
1360
    }
1361
1362
371103
    for (i = 0; 1; i++) {
1363

371103
        if(i == MAX_DELAYED_PIC_COUNT || cur->poc < h->last_pocs[i]){
1364
22670
            if(i)
1365
22670
                h->last_pocs[i-1] = cur->poc;
1366
22670
            break;
1367
348433
        } else if(i) {
1368
325763
            h->last_pocs[i-1]= h->last_pocs[i];
1369
        }
1370
    }
1371
22670
    out_of_order = MAX_DELAYED_PIC_COUNT - i;
1372
22670
    if(   cur->f->pict_type == AV_PICTURE_TYPE_B
1373

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))
1374
12018
        out_of_order = FFMAX(out_of_order, 1);
1375
22670
    if (out_of_order == MAX_DELAYED_PIC_COUNT) {
1376
        av_log(h->avctx, AV_LOG_VERBOSE, "Invalid POC %d<%d\n", cur->poc, h->last_pocs[0]);
1377
        for (i = 1; i < MAX_DELAYED_PIC_COUNT; i++)
1378
            h->last_pocs[i] = INT_MIN;
1379
        h->last_pocs[0] = cur->poc;
1380
        cur->mmco_reset = 1;
1381

22670
    } else if(h->avctx->has_b_frames < out_of_order && !sps->bitstream_restriction_flag){
1382
131
        int loglevel = h->avctx->frame_number > 1 ? AV_LOG_WARNING : AV_LOG_VERBOSE;
1383
131
        av_log(h->avctx, loglevel, "Increasing reorder buffer to %d\n", out_of_order);
1384
131
        h->avctx->has_b_frames = out_of_order;
1385
    }
1386
1387
22670
    pics = 0;
1388
51510
    while (h->delayed_pic[pics])
1389
28840
        pics++;
1390
1391
22670
    av_assert0(pics <= MAX_DELAYED_PIC_COUNT);
1392
1393
22670
    h->delayed_pic[pics++] = cur;
1394
22670
    if (cur->reference == 0)
1395
21260
        cur->reference = DELAYED_PIC_REF;
1396
1397
22670
    out     = h->delayed_pic[0];
1398
22670
    out_idx = 0;
1399
48615
    for (i = 1; h->delayed_pic[i] &&
1400
26391
                !h->delayed_pic[i]->f->key_frame &&
1401
26032
                !h->delayed_pic[i]->mmco_reset;
1402
25945
         i++)
1403
25945
        if (h->delayed_pic[i]->poc < out->poc) {
1404
9615
            out     = h->delayed_pic[i];
1405
9615
            out_idx = i;
1406
        }
1407
22670
    if (h->avctx->has_b_frames == 0 &&
1408

9631
        (h->delayed_pic[0]->f->key_frame || h->delayed_pic[0]->mmco_reset))
1409
779
        h->next_outputed_poc = INT_MIN;
1410
22670
    out_of_order = out->poc < h->next_outputed_poc;
1411
1412

22670
    if (out_of_order || pics > h->avctx->has_b_frames) {
1413
22204
        out->reference &= ~DELAYED_PIC_REF;
1414
58549
        for (i = out_idx; h->delayed_pic[i]; i++)
1415
36345
            h->delayed_pic[i] = h->delayed_pic[i + 1];
1416
    }
1417

22670
    if (!out_of_order && pics > h->avctx->has_b_frames) {
1418
22103
        h->next_output_pic = out;
1419


22103
        if (out_idx == 0 && h->delayed_pic[0] && (h->delayed_pic[0]->f->key_frame || h->delayed_pic[0]->mmco_reset)) {
1420
86
            h->next_outputed_poc = INT_MIN;
1421
        } else
1422
22017
            h->next_outputed_poc = out->poc;
1423
1424
22103
        if (out->recovered) {
1425
            // We have reached an recovery point and all frames after it in
1426
            // display order are "recovered".
1427
22028
            h->frame_recovered |= FRAME_RECOVERED_SEI;
1428
        }
1429
22103
        out->recovered |= !!(h->frame_recovered & FRAME_RECOVERED_SEI);
1430
1431
22103
        if (!out->recovered) {
1432
70
            if (!(h->avctx->flags & AV_CODEC_FLAG_OUTPUT_CORRUPT) &&
1433
70
                !(h->avctx->flags2 & AV_CODEC_FLAG2_SHOW_ALL)) {
1434
70
                h->next_output_pic = NULL;
1435
            } else {
1436
                out->f->flags |= AV_FRAME_FLAG_CORRUPT;
1437
            }
1438
        }
1439
    } else {
1440
567
        av_log(h->avctx, AV_LOG_DEBUG, "no picture %s\n", out_of_order ? "ooo" : "");
1441
    }
1442
1443
22670
    return 0;
1444
}
1445
1446
/* This function is called right after decoding the slice header for a first
1447
 * slice in a field (or a frame). It decides whether we are decoding a new frame
1448
 * or a second field in a pair and does the necessary setup.
1449
 */
1450
25907
static int h264_field_start(H264Context *h, const H264SliceContext *sl,
1451
                            const H2645NAL *nal, int first_slice)
1452
{
1453
    int i;
1454
    const SPS *sps;
1455
1456
    int last_pic_structure, last_pic_droppable, ret;
1457
1458
25907
    ret = h264_init_ps(h, sl, first_slice);
1459
25907
    if (ret < 0)
1460
        return ret;
1461
1462
25907
    sps = h->ps.sps;
1463
1464

25907
    if (sps && sps->bitstream_restriction_flag &&
1465
3642
        h->avctx->has_b_frames < sps->num_reorder_frames) {
1466
20
        h->avctx->has_b_frames = sps->num_reorder_frames;
1467
    }
1468
1469
25907
    last_pic_droppable   = h->droppable;
1470
25907
    last_pic_structure   = h->picture_structure;
1471
25907
    h->droppable         = (nal->ref_idc == 0);
1472
25907
    h->picture_structure = sl->picture_structure;
1473
1474
25907
    h->poc.frame_num        = sl->frame_num;
1475
25907
    h->poc.poc_lsb          = sl->poc_lsb;
1476
25907
    h->poc.delta_poc_bottom = sl->delta_poc_bottom;
1477
25907
    h->poc.delta_poc[0]     = sl->delta_poc[0];
1478
25907
    h->poc.delta_poc[1]     = sl->delta_poc[1];
1479
1480
    /* Shorten frame num gaps so we don't have to allocate reference
1481
     * frames just to throw them away */
1482
25907
    if (h->poc.frame_num != h->poc.prev_frame_num) {
1483
14588
        int unwrap_prev_frame_num = h->poc.prev_frame_num;
1484
14588
        int max_frame_num         = 1 << sps->log2_max_frame_num;
1485
1486
14588
        if (unwrap_prev_frame_num > h->poc.frame_num)
1487
145
            unwrap_prev_frame_num -= max_frame_num;
1488
1489
14588
        if ((h->poc.frame_num - unwrap_prev_frame_num) > sps->ref_frame_count) {
1490
66
            unwrap_prev_frame_num = (h->poc.frame_num - sps->ref_frame_count) - 1;
1491
66
            if (unwrap_prev_frame_num < 0)
1492
2
                unwrap_prev_frame_num += max_frame_num;
1493
1494
66
            h->poc.prev_frame_num = unwrap_prev_frame_num;
1495
        }
1496
    }
1497
1498
    /* See if we have a decoded first field looking for a pair...
1499
     * Here, we're using that to see if we should mark previously
1500
     * decode frames as "finished".
1501
     * We have to do that before the "dummy" in-between frame allocation,
1502
     * since that can modify h->cur_pic_ptr. */
1503
25907
    if (h->first_field) {
1504
3233
        int last_field = last_pic_structure == PICT_BOTTOM_FIELD;
1505
3233
        av_assert0(h->cur_pic_ptr);
1506
3233
        av_assert0(h->cur_pic_ptr->f->buf[0]);
1507
        assert(h->cur_pic_ptr->reference != DELAYED_PIC_REF);
1508
1509
        /* Mark old field/frame as completed */
1510
3233
        if (h->cur_pic_ptr->tf.owner[last_field] == h->avctx) {
1511
3233
            ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, last_field);
1512
        }
1513
1514
        /* figure out if we have a complementary field pair */
1515

3233
        if (!FIELD_PICTURE(h) || h->picture_structure == last_pic_structure) {
1516
            /* Previous field is unmatched. Don't display it, but let it
1517
             * remain for reference if marked as such. */
1518
            if (last_pic_structure != PICT_FRAME) {
1519
                ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX,
1520
                                          last_pic_structure == PICT_TOP_FIELD);
1521
            }
1522
        } else {
1523
3233
            if (h->cur_pic_ptr->frame_num != h->poc.frame_num) {
1524
                /* This and previous field were reference, but had
1525
                 * different frame_nums. Consider this field first in
1526
                 * pair. Throw away previous field except for reference
1527
                 * purposes. */
1528
                if (last_pic_structure != PICT_FRAME) {
1529
                    ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX,
1530
                                              last_pic_structure == PICT_TOP_FIELD);
1531
                }
1532
            } else {
1533
                /* Second field in complementary pair */
1534

3233
                if (!((last_pic_structure   == PICT_TOP_FIELD &&
1535
3225
                       h->picture_structure == PICT_BOTTOM_FIELD) ||
1536
8
                      (last_pic_structure   == PICT_BOTTOM_FIELD &&
1537
8
                       h->picture_structure == PICT_TOP_FIELD))) {
1538
                    av_log(h->avctx, AV_LOG_ERROR,
1539
                           "Invalid field mode combination %d/%d\n",
1540
                           last_pic_structure, h->picture_structure);
1541
                    h->picture_structure = last_pic_structure;
1542
                    h->droppable         = last_pic_droppable;
1543
                    return AVERROR_INVALIDDATA;
1544
3233
                } else if (last_pic_droppable != h->droppable) {
1545
                    avpriv_request_sample(h->avctx,
1546
                                          "Found reference and non-reference fields in the same frame, which");
1547
                    h->picture_structure = last_pic_structure;
1548
                    h->droppable         = last_pic_droppable;
1549
                    return AVERROR_PATCHWELCOME;
1550
                }
1551
            }
1552
        }
1553
    }
1554
1555

26579
    while (h->poc.frame_num != h->poc.prev_frame_num && !h->first_field &&
1556
15260
           h->poc.frame_num != (h->poc.prev_frame_num + 1) % (1 << sps->log2_max_frame_num)) {
1557
672
        H264Picture *prev = h->short_ref_count ? h->short_ref[0] : NULL;
1558
672
        av_log(h->avctx, AV_LOG_DEBUG, "Frame num gap %d %d\n",
1559
               h->poc.frame_num, h->poc.prev_frame_num);
1560
672
        if (!sps->gaps_in_frame_num_allowed_flag)
1561
1615
            for(i=0; i<FF_ARRAY_ELEMS(h->last_pocs); i++)
1562
1520
                h->last_pocs[i] = INT_MIN;
1563
672
        ret = h264_frame_start(h);
1564
672
        if (ret < 0) {
1565
            h->first_field = 0;
1566
            return ret;
1567
        }
1568
1569
672
        h->poc.prev_frame_num++;
1570
672
        h->poc.prev_frame_num        %= 1 << sps->log2_max_frame_num;
1571
672
        h->cur_pic_ptr->frame_num = h->poc.prev_frame_num;
1572
672
        h->cur_pic_ptr->invalid_gap = !sps->gaps_in_frame_num_allowed_flag;
1573
672
        ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, 0);
1574
672
        ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, 1);
1575
1576
672
        h->explicit_ref_marking = 0;
1577
672
        ret = ff_h264_execute_ref_pic_marking(h);
1578

672
        if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE))
1579
            return ret;
1580
        /* Error concealment: If a ref is missing, copy the previous ref
1581
         * in its place.
1582
         * FIXME: Avoiding a memcpy would be nice, but ref handling makes
1583
         * many assumptions about there being no actual duplicates.
1584
         * FIXME: This does not copy padding for out-of-frame motion
1585
         * vectors.  Given we are concealing a lost frame, this probably
1586
         * is not noticeable by comparison, but it should be fixed. */
1587
672
        if (h->short_ref_count) {
1588
672
            int c[4] = {
1589
672
                1<<(h->ps.sps->bit_depth_luma-1),
1590
672
                1<<(h->ps.sps->bit_depth_chroma-1),
1591
672
                1<<(h->ps.sps->bit_depth_chroma-1),
1592
                -1
1593
            };
1594
1595
672
            if (prev &&
1596
655
                h->short_ref[0]->f->width == prev->f->width &&
1597
655
                h->short_ref[0]->f->height == prev->f->height &&
1598
655
                h->short_ref[0]->f->format == prev->f->format) {
1599
655
                ff_thread_await_progress(&prev->tf, INT_MAX, 0);
1600
655
                if (prev->field_picture)
1601
14
                    ff_thread_await_progress(&prev->tf, INT_MAX, 1);
1602
655
                av_image_copy(h->short_ref[0]->f->data,
1603
655
                              h->short_ref[0]->f->linesize,
1604
655
                              (const uint8_t **)prev->f->data,
1605
655
                              prev->f->linesize,
1606
655
                              prev->f->format,
1607
655
                              prev->f->width,
1608
655
                              prev->f->height);
1609
655
                h->short_ref[0]->poc = prev->poc + 2U;
1610

17
            } else if (!h->frame_recovered && !h->avctx->hwaccel)
1611
14
                ff_color_frame(h->short_ref[0]->f, c);
1612
672
            h->short_ref[0]->frame_num = h->poc.prev_frame_num;
1613
        }
1614
    }
1615
1616
    /* See if we have a decoded first field looking for a pair...
1617
     * We're using that to see whether to continue decoding in that
1618
     * frame, or to allocate a new one. */
1619
25907
    if (h->first_field) {
1620
3233
        av_assert0(h->cur_pic_ptr);
1621
3233
        av_assert0(h->cur_pic_ptr->f->buf[0]);
1622
        assert(h->cur_pic_ptr->reference != DELAYED_PIC_REF);
1623
1624
        /* figure out if we have a complementary field pair */
1625

3233
        if (!FIELD_PICTURE(h) || h->picture_structure == last_pic_structure) {
1626
            /* Previous field is unmatched. Don't display it, but let it
1627
             * remain for reference if marked as such. */
1628
            h->missing_fields ++;
1629
            h->cur_pic_ptr = NULL;
1630
            h->first_field = FIELD_PICTURE(h);
1631
        } else {
1632
3233
            h->missing_fields = 0;
1633
3233
            if (h->cur_pic_ptr->frame_num != h->poc.frame_num) {
1634
                ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX,
1635
                                          h->picture_structure==PICT_BOTTOM_FIELD);
1636
                /* This and the previous field had different frame_nums.
1637
                 * Consider this field first in pair. Throw away previous
1638
                 * one except for reference purposes. */
1639
                h->first_field = 1;
1640
                h->cur_pic_ptr = NULL;
1641
3233
            } else if (h->cur_pic_ptr->reference & DELAYED_PIC_REF) {
1642
                /* This frame was already output, we cannot draw into it
1643
                 * anymore.
1644
                 */
1645
                h->first_field = 1;
1646
                h->cur_pic_ptr = NULL;
1647
            } else {
1648
                /* Second field in complementary pair */
1649
3233
                h->first_field = 0;
1650
            }
1651
        }
1652
    } else {
1653
        /* Frame or first field in a potentially complementary pair */
1654
22674
        h->first_field = FIELD_PICTURE(h);
1655
    }
1656
1657

25907
    if (!FIELD_PICTURE(h) || h->first_field) {
1658
22674
        if (h264_frame_start(h) < 0) {
1659
            h->first_field = 0;
1660
            return AVERROR_INVALIDDATA;
1661
        }
1662
    } else {
1663
3233
        int field = h->picture_structure == PICT_BOTTOM_FIELD;
1664
3233
        release_unused_pictures(h, 0);
1665
3233
        h->cur_pic_ptr->tf.owner[field] = h->avctx;
1666
    }
1667
    /* Some macroblocks can be accessed before they're available in case
1668
    * of lost slices, MBAFF or threading. */
1669
25907
    if (FIELD_PICTURE(h)) {
1670
157329
        for(i = (h->picture_structure == PICT_BOTTOM_FIELD); i<h->mb_height; i++)
1671
150859
            memset(h->slice_table + i*h->mb_stride, -1, (h->mb_stride - (i+1==h->mb_height)) * sizeof(*h->slice_table));
1672
    } else {
1673
19437
        memset(h->slice_table, -1,
1674
19437
            (h->mb_height * h->mb_stride - 1) * sizeof(*h->slice_table));
1675
    }
1676
1677
25907
    ret = ff_h264_init_poc(h->cur_pic_ptr->field_poc, &h->cur_pic_ptr->poc,
1678
                     h->ps.sps, &h->poc, h->picture_structure, nal->ref_idc);
1679
25907
    if (ret < 0)
1680
        return ret;
1681
1682
25907
    memcpy(h->mmco, sl->mmco, sl->nb_mmco * sizeof(*h->mmco));
1683
25907
    h->nb_mmco = sl->nb_mmco;
1684
25907
    h->explicit_ref_marking = sl->explicit_ref_marking;
1685
1686
25907
    h->picture_idr = nal->type == H264_NAL_IDR_SLICE;
1687
1688
25907
    if (h->sei.recovery_point.recovery_frame_cnt >= 0) {
1689
46
        const int sei_recovery_frame_cnt = h->sei.recovery_point.recovery_frame_cnt;
1690
1691

46
        if (h->poc.frame_num != sei_recovery_frame_cnt || sl->slice_type_nos != AV_PICTURE_TYPE_I)
1692
33
            h->valid_recovery_point = 1;
1693
1694
46
        if (   h->recovery_frame < 0
1695
1
            || av_mod_uintp2(h->recovery_frame - h->poc.frame_num, h->ps.sps->log2_max_frame_num) > sei_recovery_frame_cnt) {
1696
45
            h->recovery_frame = av_mod_uintp2(h->poc.frame_num + sei_recovery_frame_cnt, h->ps.sps->log2_max_frame_num);
1697
1698
45
            if (!h->valid_recovery_point)
1699
6
                h->recovery_frame = h->poc.frame_num;
1700
        }
1701
    }
1702
1703
25907
    h->cur_pic_ptr->f->key_frame |= (nal->type == H264_NAL_IDR_SLICE);
1704
1705
25907
    if (nal->type == H264_NAL_IDR_SLICE ||
1706

24898
        (h->recovery_frame == h->poc.frame_num && nal->ref_idc)) {
1707
1042
        h->recovery_frame         = -1;
1708
1042
        h->cur_pic_ptr->recovered = 1;
1709
    }
1710
    // If we have an IDR, all frames after it in decoded order are
1711
    // "recovered".
1712
25907
    if (nal->type == H264_NAL_IDR_SLICE)
1713
1009
        h->frame_recovered |= FRAME_RECOVERED_IDR;
1714
#if 1
1715
25907
    h->cur_pic_ptr->recovered |= h->frame_recovered;
1716
#else
1717
    h->cur_pic_ptr->recovered |= !!(h->frame_recovered & FRAME_RECOVERED_IDR);
1718
#endif
1719
1720
    /* Set the frame properties/side data. Only done for the second field in
1721
     * field coded frames, since some SEI information is present for each field
1722
     * and is merged by the SEI parsing code. */
1723

25907
    if (!FIELD_PICTURE(h) || !h->first_field || h->missing_fields > 1) {
1724
22670
        ret = h264_export_frame_props(h);
1725
22670
        if (ret < 0)
1726
            return ret;
1727
1728
22670
        ret = h264_select_output_frame(h);
1729
22670
        if (ret < 0)
1730
            return ret;
1731
    }
1732
1733
25907
    return 0;
1734
}
1735
1736
34469
static int h264_slice_header_parse(const H264Context *h, H264SliceContext *sl,
1737
                                   const H2645NAL *nal)
1738
{
1739
    const SPS *sps;
1740
    const PPS *pps;
1741
    int ret;
1742
    unsigned int slice_type, tmp, i;
1743
    int field_pic_flag, bottom_field_flag;
1744

34469
    int first_slice = sl == h->slice_ctx && !h->current_slice;
1745
    int picture_structure;
1746
1747
34469
    if (first_slice)
1748
26162
        av_assert0(!h->setup_finished);
1749
1750
34469
    sl->first_mb_addr = get_ue_golomb_long(&sl->gb);
1751
1752
34469
    slice_type = get_ue_golomb_31(&sl->gb);
1753
34469
    if (slice_type > 9) {
1754
        av_log(h->avctx, AV_LOG_ERROR,
1755
               "slice type %d too large at %d\n",
1756
               slice_type, sl->first_mb_addr);
1757
        return AVERROR_INVALIDDATA;
1758
    }
1759
34469
    if (slice_type > 4) {
1760
21744
        slice_type -= 5;
1761
21744
        sl->slice_type_fixed = 1;
1762
    } else
1763
12725
        sl->slice_type_fixed = 0;
1764
1765
34469
    slice_type         = ff_h264_golomb_to_pict_type[slice_type];
1766
34469
    sl->slice_type     = slice_type;
1767
34469
    sl->slice_type_nos = slice_type & 3;
1768
1769
34469
    if (nal->type  == H264_NAL_IDR_SLICE &&
1770
2073
        sl->slice_type_nos != AV_PICTURE_TYPE_I) {
1771
        av_log(h->avctx, AV_LOG_ERROR, "A non-intra slice in an IDR NAL unit.\n");
1772
        return AVERROR_INVALIDDATA;
1773
    }
1774
1775
34469
    sl->pps_id = get_ue_golomb(&sl->gb);
1776
34469
    if (sl->pps_id >= MAX_PPS_COUNT) {
1777
        av_log(h->avctx, AV_LOG_ERROR, "pps_id %u out of range\n", sl->pps_id);
1778
        return AVERROR_INVALIDDATA;
1779
    }
1780
34469
    if (!h->ps.pps_list[sl->pps_id]) {
1781
377
        av_log(h->avctx, AV_LOG_ERROR,
1782
               "non-existing PPS %u referenced\n",
1783
               sl->pps_id);
1784
377
        return AVERROR_INVALIDDATA;
1785
    }
1786
34092
    pps = (const PPS*)h->ps.pps_list[sl->pps_id]->data;
1787
34092
    sps = pps->sps;
1788
1789
34092
    sl->frame_num = get_bits(&sl->gb, sps->log2_max_frame_num);
1790
34092
    if (!first_slice) {
1791
8298
        if (h->poc.frame_num != sl->frame_num) {
1792
            av_log(h->avctx, AV_LOG_ERROR, "Frame num change from %d to %d\n",
1793
                   h->poc.frame_num, sl->frame_num);
1794
            return AVERROR_INVALIDDATA;
1795
        }
1796
    }
1797
1798
34092
    sl->mb_mbaff       = 0;
1799
1800
34092
    if (sps->frame_mbs_only_flag) {
1801
20350
        picture_structure = PICT_FRAME;
1802
    } else {
1803

13742
        if (!sps->direct_8x8_inference_flag && slice_type == AV_PICTURE_TYPE_B) {
1804
            av_log(h->avctx, AV_LOG_ERROR, "This stream was generated by a broken encoder, invalid 8x8 inference\n");
1805
            return -1;
1806
        }
1807
13742
        field_pic_flag = get_bits1(&sl->gb);
1808
13742
        if (field_pic_flag) {
1809
8477
            bottom_field_flag = get_bits1(&sl->gb);
1810
8477
            picture_structure = PICT_TOP_FIELD + bottom_field_flag;
1811
        } else {
1812
5265
            picture_structure = PICT_FRAME;
1813
        }
1814
    }
1815
34092
    sl->picture_structure      = picture_structure;
1816
34092
    sl->mb_field_decoding_flag = picture_structure != PICT_FRAME;
1817
1818
34092
    if (picture_structure == PICT_FRAME) {
1819
25615
        sl->curr_pic_num = sl->frame_num;
1820
25615
        sl->max_pic_num  = 1 << sps->log2_max_frame_num;
1821
    } else {
1822
8477
        sl->curr_pic_num = 2 * sl->frame_num + 1;
1823
8477
        sl->max_pic_num  = 1 << (sps->log2_max_frame_num + 1);
1824
    }
1825
1826
34092
    if (nal->type == H264_NAL_IDR_SLICE)
1827
2068
        get_ue_golomb_long(&sl->gb); /* idr_pic_id */
1828
1829
34092
    if (sps->poc_type == 0) {
1830
26924
        sl->poc_lsb = get_bits(&sl->gb, sps->log2_max_poc_lsb);
1831
1832

26924
        if (pps->pic_order_present == 1 && picture_structure == PICT_FRAME)
1833
5830
            sl->delta_poc_bottom = get_se_golomb(&sl->gb);
1834
    }
1835
1836

34092
    if (sps->poc_type == 1 && !sps->delta_pic_order_always_zero_flag) {
1837
2848
        sl->delta_poc[0] = get_se_golomb(&sl->gb);
1838
1839

2848
        if (pps->pic_order_present == 1 && picture_structure == PICT_FRAME)
1840
453
            sl->delta_poc[1] = get_se_golomb(&sl->gb);
1841
    }
1842
1843
34092
    sl->redundant_pic_count = 0;
1844
34092
    if (pps->redundant_pic_cnt_present)
1845
        sl->redundant_pic_count = get_ue_golomb(&sl->gb);
1846
1847
34092
    if (sl->slice_type_nos == AV_PICTURE_TYPE_B)
1848
11927
        sl->direct_spatial_mv_pred = get_bits1(&sl->gb);
1849
1850
34092
    ret = ff_h264_parse_ref_count(&sl->list_count, sl->ref_count,
1851
                                  &sl->gb, pps, sl->slice_type_nos,
1852
34092
                                  picture_structure, h->avctx);
1853
34092
    if (ret < 0)
1854
        return ret;
1855
1856
34092
    if (sl->slice_type_nos != AV_PICTURE_TYPE_I) {
1857
29872
       ret = ff_h264_decode_ref_pic_list_reordering(sl, h->avctx);
1858
29872
       if (ret < 0) {
1859
           sl->ref_count[1] = sl->ref_count[0] = 0;
1860
           return ret;
1861
       }
1862
    }
1863
1864
34092
    sl->pwt.use_weight = 0;
1865
102276
    for (i = 0; i < 2; i++) {
1866
68184
        sl->pwt.luma_weight_flag[i]   = 0;
1867
68184
        sl->pwt.chroma_weight_flag[i] = 0;
1868
    }
1869

34092
    if ((pps->weighted_pred && sl->slice_type_nos == AV_PICTURE_TYPE_P) ||
1870
32772
        (pps->weighted_bipred_idc == 1 &&
1871
278
         sl->slice_type_nos == AV_PICTURE_TYPE_B)) {
1872
1598
        ret = ff_h264_pred_weight_table(&sl->gb, sps, sl->ref_count,
1873
                                  sl->slice_type_nos, &sl->pwt,
1874
1598
                                  picture_structure, h->avctx);
1875
1598
        if (ret < 0)
1876
            return ret;
1877
    }
1878
1879
34092
    sl->explicit_ref_marking = 0;
1880
34092
    if (nal->ref_idc) {
1881
22747
        ret = ff_h264_decode_ref_pic_marking(sl, &sl->gb, nal, h->avctx);
1882

22747
        if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE))
1883
            return AVERROR_INVALIDDATA;
1884
    }
1885
1886

34092
    if (sl->slice_type_nos != AV_PICTURE_TYPE_I && pps->cabac) {
1887
15727
        tmp = get_ue_golomb_31(&sl->gb);
1888
15727
        if (tmp > 2) {
1889
            av_log(h->avctx, AV_LOG_ERROR, "cabac_init_idc %u overflow\n", tmp);
1890
            return AVERROR_INVALIDDATA;
1891
        }
1892
15727
        sl->cabac_init_idc = tmp;
1893
    }
1894
1895
34092
    sl->last_qscale_diff = 0;
1896
34092
    tmp = pps->init_qp + (unsigned)get_se_golomb(&sl->gb);
1897
34092
    if (tmp > 51 + 6 * (sps->bit_depth_luma - 8)) {
1898
        av_log(h->avctx, AV_LOG_ERROR, "QP %u out of range\n", tmp);
1899
        return AVERROR_INVALIDDATA;
1900
    }
1901
34092
    sl->qscale       = tmp;
1902
34092
    sl->chroma_qp[0] = get_chroma_qp(pps, 0, sl->qscale);
1903
34092
    sl->chroma_qp[1] = get_chroma_qp(pps, 1, sl->qscale);
1904
    // FIXME qscale / qp ... stuff
1905
34092
    if (sl->slice_type == AV_PICTURE_TYPE_SP)
1906
        get_bits1(&sl->gb); /* sp_for_switch_flag */
1907
34092
    if (sl->slice_type == AV_PICTURE_TYPE_SP ||
1908
34092
        sl->slice_type == AV_PICTURE_TYPE_SI)
1909
        get_se_golomb(&sl->gb); /* slice_qs_delta */
1910
1911
34092
    sl->deblocking_filter     = 1;
1912
34092
    sl->slice_alpha_c0_offset = 0;
1913
34092
    sl->slice_beta_offset     = 0;
1914
34092
    if (pps->deblocking_filter_parameters_present) {
1915
19835
        tmp = get_ue_golomb_31(&sl->gb);
1916
19835
        if (tmp > 2) {
1917
            av_log(h->avctx, AV_LOG_ERROR,
1918
                   "deblocking_filter_idc %u out of range\n", tmp);
1919
            return AVERROR_INVALIDDATA;
1920
        }
1921
19835
        sl->deblocking_filter = tmp;
1922
19835
        if (sl->deblocking_filter < 2)
1923
17334
            sl->deblocking_filter ^= 1;  // 1<->0
1924
1925
19835
        if (sl->deblocking_filter) {
1926
12900
            int slice_alpha_c0_offset_div2 = get_se_golomb(&sl->gb);
1927
12900
            int slice_beta_offset_div2     = get_se_golomb(&sl->gb);
1928

12900
            if (slice_alpha_c0_offset_div2 >  6 ||
1929
12900
                slice_alpha_c0_offset_div2 < -6 ||
1930
12900
                slice_beta_offset_div2 >  6     ||
1931
                slice_beta_offset_div2 < -6) {
1932
                av_log(h->avctx, AV_LOG_ERROR,
1933
                       "deblocking filter parameters %d %d out of range\n",
1934
                       slice_alpha_c0_offset_div2, slice_beta_offset_div2);
1935
                return AVERROR_INVALIDDATA;
1936
            }
1937
12900
            sl->slice_alpha_c0_offset = slice_alpha_c0_offset_div2 * 2;
1938
12900
            sl->slice_beta_offset     = slice_beta_offset_div2 * 2;
1939
        }
1940
    }
1941
1942
34092
    return 0;
1943
}
1944
1945
/* do all the per-slice initialization needed before we can start decoding the
1946
 * actual MBs */
1947
34012
static int h264_slice_init(H264Context *h, H264SliceContext *sl,
1948
                           const H2645NAL *nal)
1949
{
1950
34012
    int i, j, ret = 0;
1951
1952

34012
    if (h->picture_idr && nal->type != H264_NAL_IDR_SLICE) {
1953
        av_log(h->avctx, AV_LOG_ERROR, "Invalid mix of IDR and non-IDR slices\n");
1954
        return AVERROR_INVALIDDATA;
1955
    }
1956
1957
    av_assert1(h->mb_num == h->mb_width * h->mb_height);
1958

34012
    if (sl->first_mb_addr << FIELD_OR_MBAFF_PICTURE(h) >= h->mb_num ||
1959
34012
        sl->first_mb_addr >= h->mb_num) {
1960
        av_log(h->avctx, AV_LOG_ERROR, "first_mb_in_slice overflow\n");
1961
        return AVERROR_INVALIDDATA;
1962
    }
1963
34012
    sl->resync_mb_x = sl->mb_x =  sl->first_mb_addr % h->mb_width;
1964
68024
    sl->resync_mb_y = sl->mb_y = (sl->first_mb_addr / h->mb_width) <<
1965

34012
                                 FIELD_OR_MBAFF_PICTURE(h);
1966
34012
    if (h->picture_structure == PICT_BOTTOM_FIELD)
1967
4196
        sl->resync_mb_y = sl->mb_y = sl->mb_y + 1;
1968
    av_assert1(sl->mb_y < h->mb_height);
1969
1970
34012
    ret = ff_h264_build_ref_list(h, sl);
1971
34012
    if (ret < 0)
1972
        return ret;
1973
1974
34012
    if (h->ps.pps->weighted_bipred_idc == 2 &&
1975
2421
        sl->slice_type_nos == AV_PICTURE_TYPE_B) {
1976
1589
        implicit_weight_table(h, sl, -1);
1977
1589
        if (FRAME_MBAFF(h)) {
1978
855
            implicit_weight_table(h, sl, 0);
1979
855
            implicit_weight_table(h, sl, 1);
1980
        }
1981
    }
1982
1983

34012
    if (sl->slice_type_nos == AV_PICTURE_TYPE_B && !sl->direct_spatial_mv_pred)
1984
7703
        ff_h264_direct_dist_scale_factor(h, sl);
1985
34012
    if (!h->setup_finished)
1986
34012
        ff_h264_direct_ref_list_init(h, sl);
1987
1988
34012
    if (h->avctx->skip_loop_filter >= AVDISCARD_ALL ||
1989
34012
        (h->avctx->skip_loop_filter >= AVDISCARD_NONKEY &&
1990
         h->nal_unit_type != H264_NAL_IDR_SLICE) ||
1991
34012
        (h->avctx->skip_loop_filter >= AVDISCARD_NONINTRA &&
1992
         sl->slice_type_nos != AV_PICTURE_TYPE_I) ||
1993
34012
        (h->avctx->skip_loop_filter >= AVDISCARD_BIDIR  &&
1994
         sl->slice_type_nos == AV_PICTURE_TYPE_B) ||
1995
34012
        (h->avctx->skip_loop_filter >= AVDISCARD_NONREF &&
1996
         nal->ref_idc == 0))
1997
        sl->deblocking_filter = 0;
1998
1999

34012
    if (sl->deblocking_filter == 1 && h->nb_slice_ctx > 1) {
2000
        if (h->avctx->flags2 & AV_CODEC_FLAG2_FAST) {
2001
            /* Cheat slightly for speed:
2002
             * Do not bother to deblock across slices. */
2003
            sl->deblocking_filter = 2;
2004
        } else {
2005
            h->postpone_filter = 1;
2006
        }
2007
    }
2008
34012
    sl->qp_thresh = 15 -
2009
34012
                   FFMIN(sl->slice_alpha_c0_offset, sl->slice_beta_offset) -
2010
34012
                   FFMAX3(0,
2011
                          h->ps.pps->chroma_qp_index_offset[0],
2012
34012
                          h->ps.pps->chroma_qp_index_offset[1]) +
2013
34012
                   6 * (h->ps.sps->bit_depth_luma - 8);
2014
2015
34012
    sl->slice_num       = ++h->current_slice;
2016
2017
34012
    if (sl->slice_num)
2018
34012
        h->slice_row[(sl->slice_num-1)&(MAX_SLICES-1)]= sl->resync_mb_y;
2019
34012
    if (   h->slice_row[sl->slice_num&(MAX_SLICES-1)] + 3 >= sl->resync_mb_y
2020
31344
        && h->slice_row[sl->slice_num&(MAX_SLICES-1)] <= sl->resync_mb_y
2021
23531
        && sl->slice_num >= MAX_SLICES) {
2022
        //in case of ASO this check needs to be updated depending on how we decide to assign slice numbers in this case
2023
        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);
2024
    }
2025
2026
102036
    for (j = 0; j < 2; j++) {
2027
        int id_list[16];
2028
68024
        int *ref2frm = h->ref2frm[sl->slice_num & (MAX_SLICES - 1)][j];
2029
1156408
        for (i = 0; i < 16; i++) {
2030
1088384
            id_list[i] = 60;
2031

1088384
            if (j < sl->list_count && i < sl->ref_count[j] &&
2032
133852
                sl->ref_list[j][i].parent->f->buf[0]) {
2033
                int k;
2034
133852
                AVBuffer *buf = sl->ref_list[j][i].parent->f->buf[0]->buffer;
2035
461407
                for (k = 0; k < h->short_ref_count; k++)
2036
459458
                    if (h->short_ref[k]->f->buf[0]->buffer == buf) {
2037
131903
                        id_list[i] = k;
2038
131903
                        break;
2039
                    }
2040
143968
                for (k = 0; k < h->long_ref_count; k++)
2041

11870
                    if (h->long_ref[k] && h->long_ref[k]->f->buf[0]->buffer == buf) {
2042
1754
                        id_list[i] = h->short_ref_count + k;
2043
1754
                        break;
2044
                    }
2045
            }
2046
        }
2047
2048
68024
        ref2frm[0] =
2049
68024
        ref2frm[1] = -1;
2050
1156408
        for (i = 0; i < 16; i++)
2051
1088384
            ref2frm[i + 2] = 4 * id_list[i] + (sl->ref_list[j][i].reference & 3);
2052
68024
        ref2frm[18 + 0] =
2053
68024
        ref2frm[18 + 1] = -1;
2054
2244792
        for (i = 16; i < 48; i++)
2055
2176768
            ref2frm[i + 4] = 4 * id_list[(i - 16) >> 1] +
2056
2176768
                             (sl->ref_list[j][i].reference & 3);
2057
    }
2058
2059
34012
    if (h->avctx->debug & FF_DEBUG_PICT_INFO) {
2060
        av_log(h->avctx, AV_LOG_DEBUG,
2061
               "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",
2062
               sl->slice_num,
2063
               (h->picture_structure == PICT_FRAME ? "F" : h->picture_structure == PICT_TOP_FIELD ? "T" : "B"),
2064
               sl->mb_y * h->mb_width + sl->mb_x,
2065
               av_get_picture_type_char(sl->slice_type),
2066
               sl->slice_type_fixed ? " fix" : "",
2067
               nal->type == H264_NAL_IDR_SLICE ? " IDR" : "",
2068
               h->poc.frame_num,
2069
               h->cur_pic_ptr->field_poc[0],
2070
               h->cur_pic_ptr->field_poc[1],
2071
               sl->ref_count[0], sl->ref_count[1],
2072
               sl->qscale,
2073
               sl->deblocking_filter,
2074
               sl->slice_alpha_c0_offset, sl->slice_beta_offset,
2075
               sl->pwt.use_weight,
2076
               sl->pwt.use_weight == 1 && sl->pwt.use_weight_chroma ? "c" : "",
2077
               sl->slice_type == AV_PICTURE_TYPE_B ? (sl->direct_spatial_mv_pred ? "SPAT" : "TEMP") : "");
2078
    }
2079
2080
34012
    return 0;
2081
}
2082
2083
34469
int ff_h264_queue_decode_slice(H264Context *h, const H2645NAL *nal)
2084
{
2085
34469
    H264SliceContext *sl = h->slice_ctx + h->nb_slice_ctx_queued;
2086

34469
    int first_slice = sl == h->slice_ctx && !h->current_slice;
2087
    int ret;
2088
2089
34469
    sl->gb = nal->gb;
2090
2091
34469
    ret = h264_slice_header_parse(h, sl, nal);
2092
34469
    if (ret < 0)
2093
377
        return ret;
2094
2095
    // discard redundant pictures
2096
34092
    if (sl->redundant_pic_count > 0) {
2097
        sl->ref_count[0] = sl->ref_count[1] = 0;
2098
        return 0;
2099
    }
2100
2101

34092
    if (sl->first_mb_addr == 0 || !h->current_slice) {
2102
25987
        if (h->setup_finished) {
2103
            av_log(h->avctx, AV_LOG_ERROR, "Too many fields\n");
2104
            return AVERROR_INVALIDDATA;
2105
        }
2106
    }
2107
2108
34092
    if (sl->first_mb_addr == 0) { // FIXME better field boundary detection
2109
25987
        if (h->current_slice) {
2110
            // this slice starts a new field
2111
            // first decode any pending queued slices
2112
193
            if (h->nb_slice_ctx_queued) {
2113
                H264SliceContext tmp_ctx;
2114
2115
                ret = ff_h264_execute_decode_slices(h);
2116
                if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE))
2117
                    return ret;
2118
2119
                memcpy(&tmp_ctx, h->slice_ctx, sizeof(tmp_ctx));
2120
                memcpy(h->slice_ctx, sl, sizeof(tmp_ctx));
2121
                memcpy(sl, &tmp_ctx, sizeof(tmp_ctx));
2122
                sl = h->slice_ctx;
2123
            }
2124
2125

193
            if (h->cur_pic_ptr && FIELD_PICTURE(h) && h->first_field) {
2126
193
                ret = ff_h264_field_end(h, h->slice_ctx, 1);
2127
193
                if (ret < 0)
2128
                    return ret;
2129
            } else if (h->cur_pic_ptr && !FIELD_PICTURE(h) && !h->first_field && h->nal_unit_type  == H264_NAL_IDR_SLICE) {
2130
                av_log(h, AV_LOG_WARNING, "Broken frame packetizing\n");
2131
                ret = ff_h264_field_end(h, h->slice_ctx, 1);
2132
                ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, 0);
2133
                ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, 1);
2134
                h->cur_pic_ptr = NULL;
2135
                if (ret < 0)
2136
                    return ret;
2137
            } else
2138
                return AVERROR_INVALIDDATA;
2139
        }
2140
2141
25987
        if (!h->first_field) {
2142

22754
            if (h->cur_pic_ptr && !h->droppable) {
2143
299
                ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX,
2144
299
                                          h->picture_structure == PICT_BOTTOM_FIELD);
2145
            }
2146
22754
            h->cur_pic_ptr = NULL;
2147
        }
2148
    }
2149
2150
34092
    if (!h->current_slice)
2151
25987
        av_assert0(sl == h->slice_ctx);
2152
2153

34092
    if (h->current_slice == 0 && !h->first_field) {
2154
22754
        if (
2155

22754
            (h->avctx->skip_frame >= AVDISCARD_NONREF && !h->nal_ref_idc) ||
2156

22754
            (h->avctx->skip_frame >= AVDISCARD_BIDIR  && sl->slice_type_nos == AV_PICTURE_TYPE_B) ||
2157

22710
            (h->avctx->skip_frame >= AVDISCARD_NONINTRA && sl->slice_type_nos != AV_PICTURE_TYPE_I) ||
2158

22674
            (h->avctx->skip_frame >= AVDISCARD_NONKEY && h->nal_unit_type != H264_NAL_IDR_SLICE && h->sei.recovery_point.recovery_frame_cnt < 0) ||
2159
22674
            h->avctx->skip_frame >= AVDISCARD_ALL) {
2160
80
            return 0;
2161
        }
2162
    }
2163
2164
34012
    if (!first_slice) {
2165
8298
        const PPS *pps = (const PPS*)h->ps.pps_list[sl->pps_id]->data;
2166
2167
8298
        if (h->ps.pps->sps_id != pps->sps_id ||
2168
8298
            h->ps.pps->transform_8x8_mode != pps->transform_8x8_mode /*||
2169
            (h->setup_finished && h->ps.pps != pps)*/) {
2170
            av_log(h->avctx, AV_LOG_ERROR, "PPS changed between slices\n");
2171
            return AVERROR_INVALIDDATA;
2172
        }
2173
8298
        if (h->ps.sps != pps->sps) {
2174
            av_log(h->avctx, AV_LOG_ERROR,
2175
               "SPS changed in the middle of the frame\n");
2176
            return AVERROR_INVALIDDATA;
2177
        }
2178
    }
2179
2180
34012
    if (h->current_slice == 0) {
2181
25907
        ret = h264_field_start(h, sl, nal, first_slice);
2182
25907
        if (ret < 0)
2183
            return ret;
2184
    } else {
2185
8105
        if (h->picture_structure != sl->picture_structure ||
2186
8105
            h->droppable         != (nal->ref_idc == 0)) {
2187
            av_log(h->avctx, AV_LOG_ERROR,
2188
                   "Changing field mode (%d -> %d) between slices is not allowed\n",
2189
                   h->picture_structure, sl->picture_structure);
2190
            return AVERROR_INVALIDDATA;
2191
8105
        } else if (!h->cur_pic_ptr) {
2192
            av_log(h->avctx, AV_LOG_ERROR,
2193
                   "unset cur_pic_ptr on slice %d\n",
2194
                   h->current_slice + 1);
2195
            return AVERROR_INVALIDDATA;
2196
        }
2197
    }
2198
2199
34012
    ret = h264_slice_init(h, sl, nal);
2200
34012
    if (ret < 0)
2201
        return ret;
2202
2203
34012
    h->nb_slice_ctx_queued++;
2204
2205
34012
    return 0;
2206
}
2207
2208
int ff_h264_get_slice_type(const H264SliceContext *sl)
2209
{
2210
    switch (sl->slice_type) {
2211
    case AV_PICTURE_TYPE_P:
2212
        return 0;
2213
    case AV_PICTURE_TYPE_B:
2214
        return 1;
2215
    case AV_PICTURE_TYPE_I:
2216
        return 2;
2217
    case AV_PICTURE_TYPE_SP:
2218
        return 3;
2219
    case AV_PICTURE_TYPE_SI:
2220
        return 4;
2221
    default:
2222
        return AVERROR_INVALIDDATA;
2223
    }
2224
}
2225
2226
10674266
static av_always_inline void fill_filter_caches_inter(const H264Context *h,
2227
                                                      H264SliceContext *sl,
2228
                                                      int mb_type, int top_xy,
2229
                                                      int left_xy[LEFT_MBS],
2230
                                                      int top_type,
2231
                                                      int left_type[LEFT_MBS],
2232
                                                      int mb_xy, int list)
2233
{
2234
10674266
    int b_stride = h->b_stride;
2235
10674266
    int16_t(*mv_dst)[2] = &sl->mv_cache[list][scan8[0]];
2236
10674266
    int8_t *ref_cache   = &sl->ref_cache[list][scan8[0]];
2237

10674266
    if (IS_INTER(mb_type) || IS_DIRECT(mb_type)) {
2238
10674266
        if (USES_LIST(top_type, list)) {
2239
8459942
            const int b_xy  = h->mb2b_xy[top_xy] + 3 * b_stride;
2240
8459942
            const int b8_xy = 4 * top_xy + 2;
2241
8459942
            const int *ref2frm = &h->ref2frm[h->slice_table[top_xy] & (MAX_SLICES - 1)][list][(MB_MBAFF(sl) ? 20 : 2)];
2242
8459942
            AV_COPY128(mv_dst - 1 * 8, h->cur_pic.motion_val[list][b_xy + 0]);
2243
8459942
            ref_cache[0 - 1 * 8] =
2244
8459942
            ref_cache[1 - 1 * 8] = ref2frm[h->cur_pic.ref_index[list][b8_xy + 0]];
2245
8459942
            ref_cache[2 - 1 * 8] =
2246
8459942
            ref_cache[3 - 1 * 8] = ref2frm[h->cur_pic.ref_index[list][b8_xy + 1]];
2247
        } else {
2248
2214324
            AV_ZERO128(mv_dst - 1 * 8);
2249
2214324
            AV_WN32A(&ref_cache[0 - 1 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
2250
        }
2251
2252
10674266
        if (!IS_INTERLACED(mb_type ^ left_type[LTOP])) {
2253
10274679
            if (USES_LIST(left_type[LTOP], list)) {
2254
8489061
                const int b_xy  = h->mb2b_xy[left_xy[LTOP]] + 3;
2255
8489061
                const int b8_xy = 4 * left_xy[LTOP] + 1;
2256
8489061
                const int *ref2frm = &h->ref2frm[h->slice_table[left_xy[LTOP]] & (MAX_SLICES - 1)][list][(MB_MBAFF(sl) ? 20 : 2)];
2257
8489061
                AV_COPY32(mv_dst - 1 +  0, h->cur_pic.motion_val[list][b_xy + b_stride * 0]);
2258
8489061
                AV_COPY32(mv_dst - 1 +  8, h->cur_pic.motion_val[list][b_xy + b_stride * 1]);
2259
8489061
                AV_COPY32(mv_dst - 1 + 16, h->cur_pic.motion_val[list][b_xy + b_stride * 2]);
2260
8489061
                AV_COPY32(mv_dst - 1 + 24, h->cur_pic.motion_val[list][b_xy + b_stride * 3]);
2261
8489061
                ref_cache[-1 +  0] =
2262
8489061
                ref_cache[-1 +  8] = ref2frm[h->cur_pic.ref_index[list][b8_xy + 2 * 0]];
2263
8489061
                ref_cache[-1 + 16] =
2264
8489061
                ref_cache[-1 + 24] = ref2frm[h->cur_pic.ref_index[list][b8_xy + 2 * 1]];
2265
            } else {
2266
1785618
                AV_ZERO32(mv_dst - 1 +  0);
2267
1785618
                AV_ZERO32(mv_dst - 1 +  8);
2268
1785618
                AV_ZERO32(mv_dst - 1 + 16);
2269
1785618
                AV_ZERO32(mv_dst - 1 + 24);
2270
1785618
                ref_cache[-1 +  0] =
2271
1785618
                ref_cache[-1 +  8] =
2272
1785618
                ref_cache[-1 + 16] =
2273
1785618
                ref_cache[-1 + 24] = LIST_NOT_USED;
2274
            }
2275
        }
2276
    }
2277
2278
10674266
    if (!USES_LIST(mb_type, list)) {
2279
1236726
        fill_rectangle(mv_dst, 4, 4, 8, pack16to32(0, 0), 4);
2280
1236726
        AV_WN32A(&ref_cache[0 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
2281
1236726
        AV_WN32A(&ref_cache[1 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
2282
1236726
        AV_WN32A(&ref_cache[2 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
2283
1236726
        AV_WN32A(&ref_cache[3 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
2284
1236726
        return;
2285
    }
2286
2287
    {
2288
9437540
        int8_t *ref = &h->cur_pic.ref_index[list][4 * mb_xy];
2289
9437540
        const int *ref2frm = &h->ref2frm[sl->slice_num & (MAX_SLICES - 1)][list][(MB_MBAFF(sl) ? 20 : 2)];
2290
9437540
        uint32_t ref01 = (pack16to32(ref2frm[ref[0]], ref2frm[ref[1]]) & 0x00FF00FF) * 0x0101;
2291
9437540
        uint32_t ref23 = (pack16to32(ref2frm[ref[2]], ref2frm[ref[3]]) & 0x00FF00FF) * 0x0101;
2292
9437540
        AV_WN32A(&ref_cache[0 * 8], ref01);
2293
9437540
        AV_WN32A(&ref_cache[1 * 8], ref01);
2294
9437540
        AV_WN32A(&ref_cache[2 * 8], ref23);
2295
9437540
        AV_WN32A(&ref_cache[3 * 8], ref23);
2296
    }
2297
2298
    {
2299
9437540
        int16_t(*mv_src)[2] = &h->cur_pic.motion_val[list][4 * sl->mb_x + 4 * sl->mb_y * b_stride];
2300
9437540
        AV_COPY128(mv_dst + 8 * 0, mv_src + 0 * b_stride);
2301
9437540
        AV_COPY128(mv_dst + 8 * 1, mv_src + 1 * b_stride);
2302
9437540
        AV_COPY128(mv_dst + 8 * 2, mv_src + 2 * b_stride);
2303
9437540
        AV_COPY128(mv_dst + 8 * 3, mv_src + 3 * b_stride);
2304
    }
2305
}
2306
2307
/**
2308
 * @return non zero if the loop filter can be skipped
2309
 */
2310
10756383
static int fill_filter_caches(const H264Context *h, H264SliceContext *sl, int mb_type)
2311
{
2312
10756383
    const int mb_xy = sl->mb_xy;
2313
    int top_xy, left_xy[LEFT_MBS];
2314
    int top_type, left_type[LEFT_MBS];
2315
    uint8_t *nnz;
2316
    uint8_t *nnz_cache;
2317
2318
10756383
    top_xy = mb_xy - (h->mb_stride << MB_FIELD(sl));
2319
2320
10756383
    left_xy[LBOT] = left_xy[LTOP] = mb_xy - 1;
2321
10756383
    if (FRAME_MBAFF(h)) {
2322
1814136
        const int left_mb_field_flag = IS_INTERLACED(h->cur_pic.mb_type[mb_xy - 1]);
2323
1814136
        const int curr_mb_field_flag = IS_INTERLACED(mb_type);
2324
1814136
        if (sl->mb_y & 1) {
2325
907068
            if (left_mb_field_flag != curr_mb_field_flag)
2326
189266
                left_xy[LTOP] -= h->mb_stride;
2327
        } else {
2328
907068
            if (curr_mb_field_flag)
2329
241257
                top_xy += h->mb_stride &
2330
241257
                          (((h->cur_pic.mb_type[top_xy] >> 7) & 1) - 1);
2331
907068
            if (left_mb_field_flag != curr_mb_field_flag)
2332
189266
                left_xy[LBOT] += h->mb_stride;
2333
        }
2334
    }
2335
2336
10756383
    sl->top_mb_xy        = top_xy;
2337
10756383
    sl->left_mb_xy[LTOP] = left_xy[LTOP];
2338
10756383
    sl->left_mb_xy[LBOT] = left_xy[LBOT];
2339
    {
2340
        /* For sufficiently low qp, filtering wouldn't do anything.
2341
         * This is a conservative estimate: could also check beta_offset
2342
         * and more accurate chroma_qp. */
2343
10756383
        int qp_thresh = sl->qp_thresh; // FIXME strictly we should store qp_thresh for each mb of a slice
2344
10756383
        int qp        = h->cur_pic.qscale_table[mb_xy];
2345
10756383
        if (qp <= qp_thresh &&
2346
992896
            (left_xy[LTOP] < 0 ||
2347

992896
             ((qp + h->cur_pic.qscale_table[left_xy[LTOP]] + 1) >> 1) <= qp_thresh) &&
2348
889380
            (top_xy < 0 ||
2349
889380
             ((qp + h->cur_pic.qscale_table[top_xy] + 1) >> 1) <= qp_thresh)) {
2350
861760
            if (!FRAME_MBAFF(h))
2351
639315
                return 1;
2352
222445
            if ((left_xy[LTOP] < 0 ||
2353
222351
                 ((qp + h->cur_pic.qscale_table[left_xy[LBOT]] + 1) >> 1) <= qp_thresh) &&
2354
222040
                (top_xy < h->mb_stride ||
2355
207469
                 ((qp + h->cur_pic.qscale_table[top_xy - h->mb_stride] + 1) >> 1) <= qp_thresh))
2356
205646
                return 1;
2357
        }
2358
    }
2359
2360
9911422
    top_type        = h->cur_pic.mb_type[top_xy];
2361
9911422
    left_type[LTOP] = h->cur_pic.mb_type[left_xy[LTOP]];
2362
9911422
    left_type[LBOT] = h->cur_pic.mb_type[left_xy[LBOT]];
2363
9911422
    if (sl->deblocking_filter == 2) {
2364
470376
        if (h->slice_table[top_xy] != sl->slice_num)
2365
56878
            top_type = 0;
2366
470376
        if (h->slice_table[left_xy[LBOT]] != sl->slice_num)
2367
13874
            left_type[LTOP] = left_type[LBOT] = 0;
2368
    } else {
2369
9441046
        if (h->slice_table[top_xy] == 0xFFFF)
2370
450225
            top_type = 0;
2371
9441046
        if (h->slice_table[left_xy[LBOT]] == 0xFFFF)
2372
289514
            left_type[LTOP] = left_type[LBOT] = 0;
2373
    }
2374
9911422
    sl->top_type        = top_type;
2375
9911422
    sl->left_type[LTOP] = left_type[LTOP];
2376
9911422
    sl->left_type[LBOT] = left_type[LBOT];
2377
2378
9911422
    if (IS_INTRA(mb_type))
2379
2860763
        return 0;
2380
2381
7050659
    fill_filter_caches_inter(h, sl, mb_type, top_xy, left_xy,
2382
                             top_type, left_type, mb_xy, 0);
2383
7050659
    if (sl->list_count == 2)
2384
3623607
        fill_filter_caches_inter(h, sl, mb_type, top_xy, left_xy,
2385
                                 top_type, left_type, mb_xy, 1);
2386
2387
7050659
    nnz       = h->non_zero_count[mb_xy];
2388
7050659
    nnz_cache = sl->non_zero_count_cache;
2389
7050659
    AV_COPY32(&nnz_cache[4 + 8 * 1], &nnz[0]);
2390
7050659
    AV_COPY32(&nnz_cache[4 + 8 * 2], &nnz[4]);
2391
7050659
    AV_COPY32(&nnz_cache[4 + 8 * 3], &nnz[8]);
2392
7050659
    AV_COPY32(&nnz_cache[4 + 8 * 4], &nnz[12]);
2393
7050659
    sl->cbp = h->cbp_table[mb_xy];
2394
2395
7050659
    if (top_type) {
2396
6645482
        nnz = h->non_zero_count[top_xy];
2397
6645482
        AV_COPY32(&nnz_cache[4 + 8 * 0], &nnz[3 * 4]);
2398
    }
2399
2400
7050659
    if (left_type[LTOP]) {
2401
6802837
        nnz = h->non_zero_count[left_xy[LTOP]];
2402
6802837
        nnz_cache[3 + 8 * 1] = nnz[3 + 0 * 4];
2403
6802837
        nnz_cache[3 + 8 * 2] = nnz[3 + 1 * 4];
2404
6802837
        nnz_cache[3 + 8 * 3] = nnz[3 + 2 * 4];
2405
6802837
        nnz_cache[3 + 8 * 4] = nnz[3 + 3 * 4];
2406
    }
2407
2408
    /* CAVLC 8x8dct requires NNZ values for residual decoding that differ
2409
     * from what the loop filter needs */
2410

7050659
    if (!CABAC(h) && h->ps.pps->transform_8x8_mode) {
2411
246512
        if (IS_8x8DCT(top_type)) {
2412
107880
            nnz_cache[4 + 8 * 0] =
2413
107880
            nnz_cache[5 + 8 * 0] = (h->cbp_table[top_xy] & 0x4000) >> 12;
2414
107880
            nnz_cache[6 + 8 * 0] =
2415
107880
            nnz_cache[7 + 8 * 0] = (h->cbp_table[top_xy] & 0x8000) >> 12;
2416
        }
2417
246512
        if (IS_8x8DCT(left_type[LTOP])) {
2418
110456
            nnz_cache[3 + 8 * 1] =
2419
110456
            nnz_cache[3 + 8 * 2] = (h->cbp_table[left_xy[LTOP]] & 0x2000) >> 12; // FIXME check MBAFF
2420
        }
2421
246512
        if (IS_8x8DCT(left_type[LBOT])) {
2422
110556
            nnz_cache[3 + 8 * 3] =
2423
110556
            nnz_cache[3 + 8 * 4] = (h->cbp_table[left_xy[LBOT]] & 0x8000) >> 12; // FIXME check MBAFF
2424
        }
2425
2426
246512
        if (IS_8x8DCT(mb_type)) {
2427
104923
            nnz_cache[scan8[0]] =
2428
104923
            nnz_cache[scan8[1]] =
2429
104923
            nnz_cache[scan8[2]] =
2430
104923
            nnz_cache[scan8[3]] = (sl->cbp & 0x1000) >> 12;
2431
2432
104923
            nnz_cache[scan8[0 + 4]] =
2433
104923
            nnz_cache[scan8[1 + 4]] =
2434
104923
            nnz_cache[scan8[2 + 4]] =
2435
104923
            nnz_cache[scan8[3 + 4]] = (sl->cbp & 0x2000) >> 12;
2436
2437
104923
            nnz_cache[scan8[0 + 8]] =
2438
104923
            nnz_cache[scan8[1 + 8]] =
2439
104923
            nnz_cache[scan8[2 + 8]] =
2440
104923
            nnz_cache[scan8[3 + 8]] = (sl->cbp & 0x4000) >> 12;
2441
2442
104923
            nnz_cache[scan8[0 + 12]] =
2443
104923
            nnz_cache[scan8[1 + 12]] =
2444
104923
            nnz_cache[scan8[2 + 12]] =
2445
104923
            nnz_cache[scan8[3 + 12]] = (sl->cbp & 0x8000) >> 12;
2446
        }
2447
    }
2448
2449
7050659
    return 0;
2450
}
2451
2452
358726
static void loop_filter(const H264Context *h, H264SliceContext *sl, int start_x, int end_x)
2453
{
2454
    uint8_t *dest_y, *dest_cb, *dest_cr;
2455
    int linesize, uvlinesize, mb_x, mb_y;
2456
358726
    const int end_mb_y       = sl->mb_y + FRAME_MBAFF(h);
2457
358726
    const int old_slice_type = sl->slice_type;
2458
358726
    const int pixel_shift    = h->pixel_shift;
2459
358726
    const int block_h        = 16 >> h->chroma_y_shift;
2460
2461
358726
    if (h->postpone_filter)
2462
        return;
2463
2464
358726
    if (sl->deblocking_filter) {
2465
10138879
        for (mb_x = start_x; mb_x < end_x; mb_x++)
2466
20605698
            for (mb_y = end_mb_y - FRAME_MBAFF(h); mb_y <= end_mb_y; mb_y++) {
2467
                int mb_xy, mb_type;
2468
10756383
                mb_xy         = sl->mb_xy = mb_x + mb_y * h->mb_stride;
2469
10756383
                mb_type       = h->cur_pic.mb_type[mb_xy];
2470
2471
10756383
                if (FRAME_MBAFF(h))
2472
1814136
                    sl->mb_mbaff               =
2473
1814136
                    sl->mb_field_decoding_flag = !!IS_INTERLACED(mb_type);
2474
2475
10756383
                sl->mb_x = mb_x;
2476
10756383
                sl->mb_y = mb_y;
2477
10756383
                dest_y  = h->cur_pic.f->data[0] +
2478
10756383
                          ((mb_x << pixel_shift) + mb_y * sl->linesize) * 16;
2479
21512766
                dest_cb = h->cur_pic.f->data[1] +
2480
10756383
                          (mb_x << pixel_shift) * (8 << CHROMA444(h)) +
2481
10756383
                          mb_y * sl->uvlinesize * block_h;
2482
21512766
                dest_cr = h->cur_pic.f->data[2] +
2483
10756383
                          (mb_x << pixel_shift) * (8 << CHROMA444(h)) +
2484
10756383
                          mb_y * sl->uvlinesize * block_h;
2485
                // FIXME simplify above
2486
2487
10756383
                if (MB_FIELD(sl)) {
2488
3606552
                    linesize   = sl->mb_linesize   = sl->linesize   * 2;
2489
3606552
                    uvlinesize = sl->mb_uvlinesize = sl->uvlinesize * 2;
2490
3606552
                    if (mb_y & 1) { // FIXME move out of this function?
2491
1802577
                        dest_y  -= sl->linesize   * 15;
2492
1802577
                        dest_cb -= sl->uvlinesize * (block_h - 1);
2493
1802577
                        dest_cr -= sl->uvlinesize * (block_h - 1);
2494
                    }
2495
                } else {
2496
7149831
                    linesize   = sl->mb_linesize   = sl->linesize;
2497
7149831
                    uvlinesize = sl->mb_uvlinesize = sl->uvlinesize;
2498
                }
2499
10756383
                backup_mb_border(h, sl, dest_y, dest_cb, dest_cr, linesize,
2500
                                 uvlinesize, 0);
2501
10756383
                if (fill_filter_caches(h, sl, mb_type))
2502
844961
                    continue;
2503
9911422
                sl->chroma_qp[0] = get_chroma_qp(h->ps.pps, 0, h->cur_pic.qscale_table[mb_xy]);
2504
9911422
                sl->chroma_qp[1] = get_chroma_qp(h->ps.pps, 1, h->cur_pic.qscale_table[mb_xy]);
2505
2506
9911422
                if (FRAME_MBAFF(h)) {
2507
1608490
                    ff_h264_filter_mb(h, sl, mb_x, mb_y, dest_y, dest_cb, dest_cr,
2508
                                      linesize, uvlinesize);
2509
                } else {
2510
8302932
                    ff_h264_filter_mb_fast(h, sl, mb_x, mb_y, dest_y, dest_cb,
2511
                                           dest_cr, linesize, uvlinesize);
2512
                }
2513
            }
2514
    }
2515
358726
    sl->slice_type  = old_slice_type;
2516
358726
    sl->mb_x         = end_x;
2517
358726
    sl->mb_y         = end_mb_y - FRAME_MBAFF(h);
2518
358726
    sl->chroma_qp[0] = get_chroma_qp(h->ps.pps, 0, sl->qscale);
2519
358726
    sl->chroma_qp[1] = get_chroma_qp(h->ps.pps, 1, sl->qscale);
2520
}
2521
2522
22884
static void predict_field_decoding_flag(const H264Context *h, H264SliceContext *sl)
2523
{
2524
22884
    const int mb_xy = sl->mb_x + sl->mb_y * h->mb_stride;
2525
45768
    int mb_type     = (h->slice_table[mb_xy - 1] == sl->slice_num) ?
2526
45768
                      h->cur_pic.mb_type[mb_xy - 1] :
2527
22884
                      (h->slice_table[mb_xy - h->mb_stride] == sl->slice_num) ?
2528
22748
                      h->cur_pic.mb_type[mb_xy - h->mb_stride] : 0;
2529
22884
    sl->mb_mbaff    = sl->mb_field_decoding_flag = IS_INTERLACED(mb_type) ? 1 : 0;
2530
22884
}
2531
2532
/**
2533
 * Draw edges and report progress for the last MB row.
2534
 */
2535
354631
static void decode_finish_row(const H264Context *h, H264SliceContext *sl)
2536
{
2537
354631
    int top            = 16 * (sl->mb_y      >> FIELD_PICTURE(h));
2538
354631
    int pic_height     = 16 *  h->mb_height >> FIELD_PICTURE(h);
2539
354631
    int height         =  16      << FRAME_MBAFF(h);
2540
354631
    int deblock_border = (16 + 4) << FRAME_MBAFF(h);
2541
2542
354631
    if (sl->deblocking_filter) {
2543
286481
        if ((top + height) >= pic_height)
2544
20326
            height += deblock_border;
2545
286481
        top -= deblock_border;
2546
    }
2547
2548

354631
    if (top >= pic_height || (top + height) < 0)
2549
20327
        return;
2550
2551
334304
    height = FFMIN(height, pic_height - top);
2552
334304
    if (top < 0) {
2553
20327
        height = top + height;
2554
20327
        top    = 0;
2555
    }
2556
2557
334304
    ff_h264_draw_horiz_band(h, sl, top, height);
2558
2559

334304
    if (h->droppable || sl->h264->slice_ctx[0].er.error_occurred)
2560
119504
        return;
2561
2562
214800
    ff_thread_report_progress(&h->cur_pic_ptr->tf, top + height - 1,
2563
214800
                              h->picture_structure == PICT_BOTTOM_FIELD);
2564
}
2565
2566
34012
static void er_add_slice(H264SliceContext *sl,
2567
                         int startx, int starty,
2568
                         int endx, int endy, int status)
2569
{
2570
34012
    if (!sl->h264->enable_er)
2571
1200
        return;
2572
2573
    if (CONFIG_ERROR_RESILIENCE) {
2574
32812
        ERContext *er = &sl->h264->slice_ctx[0].er;
2575
2576
32812
        ff_er_add_slice(er, startx, starty, endx, endy, status);
2577
    }
2578
}
2579
2580
34012
static int decode_slice(struct AVCodecContext *avctx, void *arg)
2581
{
2582
34012
    H264SliceContext *sl = arg;
2583
34012
    const H264Context *h = sl->h264;
2584
34012
    int lf_x_start = sl->mb_x;
2585
34012
    int orig_deblock = sl->deblocking_filter;
2586
    int ret;
2587
2588
34012
    sl->linesize   = h->cur_pic_ptr->f->linesize[0];
2589
34012
    sl->uvlinesize = h->cur_pic_ptr->f->linesize[1];
2590
2591
34012
    ret = alloc_scratch_buffers(sl, sl->linesize);
2592
34012
    if (ret < 0)
2593
        return ret;
2594
2595
34012
    sl->mb_skip_run = -1;
2596
2597
34012
    av_assert0(h->block_offset[15] == (4 * ((scan8[15] - scan8[0]) & 7) << h->pixel_shift) + 4 * sl->linesize * ((scan8[15] - scan8[0]) >> 3));
2598
2599
34012
    if (h->postpone_filter)
2600
        sl->deblocking_filter = 0;
2601
2602

34012
    sl->is_complex = FRAME_MBAFF(h) || h->picture_structure != PICT_FRAME ||
2603
                     (CONFIG_GRAY && (h->flags & AV_CODEC_FLAG_GRAY));
2604
2605

34012
    if (!(h->avctx->active_thread_type & FF_THREAD_SLICE) && h->picture_structure == PICT_FRAME && h->slice_ctx[0].er.error_status_table) {
2606
24415
        const int start_i  = av_clip(sl->resync_mb_x + sl->resync_mb_y * h->mb_width, 0, h->mb_num - 1);
2607
24415
        if (start_i) {
2608
5278
            int prev_status = h->slice_ctx[0].er.error_status_table[h->slice_ctx[0].er.mb_index2xy[start_i - 1]];
2609
5278
            prev_status &= ~ VP_START;
2610
5278
            if (prev_status != (ER_MV_END | ER_DC_END | ER_AC_END))
2611
                h->slice_ctx[0].er.error_occurred = 1;
2612
        }
2613
    }
2614
2615
34012
    if (h->ps.pps->cabac) {
2616
        /* realign */
2617
18089
        align_get_bits(&sl->gb);
2618
2619
        /* init cabac */
2620
36178
        ret = ff_init_cabac_decoder(&sl->cabac,
2621
18089
                              sl->gb.buffer + get_bits_count(&sl->gb) / 8,
2622
18089
                              (get_bits_left(&sl->gb) + 7) / 8);
2623
18089
        if (ret < 0)
2624
            return ret;
2625
2626
18089
        ff_h264_init_cabac_states(h, sl);
2627
2628
7679670
        for (;;) {
2629
            int ret, eos;
2630
7697759
            if (sl->mb_x + sl->mb_y * h->mb_width >= sl->next_slice_idx) {
2631
                av_log(h->avctx, AV_LOG_ERROR, "Slice overlaps with next at %d\n",
2632
                       sl->next_slice_idx);
2633
                er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x,
2634
                             sl->mb_y, ER_MB_ERROR);
2635
                return AVERROR_INVALIDDATA;
2636
            }
2637
2638
7697759
            ret = ff_h264_decode_mb_cabac(h, sl);
2639
2640
7697759
            if (ret >= 0)
2641
7697758
                ff_h264_hl_decode_mb(h, sl);
2642
2643
            // FIXME optimal? or let mb_decode decode 16x32 ?
2644

7697759
            if (ret >= 0 && FRAME_MBAFF(h)) {
2645
798720
                sl->mb_y++;
2646
2647
798720
                ret = ff_h264_decode_mb_cabac(h, sl);
2648
2649
798720
                if (ret >= 0)
2650
798720
                    ff_h264_hl_decode_mb(h, sl);
2651
798720
                sl->mb_y--;
2652
            }
2653
7697759
            eos = get_cabac_terminate(&sl->cabac);
2654
2655
7697759
            if ((h->workaround_bugs & FF_BUG_TRUNCATED) &&
2656
                sl->cabac.bytestream > sl->cabac.bytestream_end + 2) {
2657
                er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x - 1,
2658
                             sl->mb_y, ER_MB_END);
2659
                if (sl->mb_x >= lf_x_start)
2660
                    loop_filter(h, sl, lf_x_start, sl->mb_x + 1);
2661
                goto finish;
2662
            }
2663
7697759
            if (sl->cabac.bytestream > sl->cabac.bytestream_end + 2 )
2664
1
                av_log(h->avctx, AV_LOG_DEBUG, "bytestream overread %"PTRDIFF_SPECIFIER"\n", sl->cabac.bytestream_end - sl->cabac.bytestream);
2665

7697759
            if (ret < 0 || sl->cabac.bytestream > sl->cabac.bytestream_end + 4) {
2666
2
                av_log(h->avctx, AV_LOG_ERROR,
2667
                       "error while decoding MB %d %d, bytestream %"PTRDIFF_SPECIFIER"\n",
2668
                       sl->mb_x, sl->mb_y,
2669
2
                       sl->cabac.bytestream_end - sl->cabac.bytestream);
2670
2
                er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x,
2671
                             sl->mb_y, ER_MB_ERROR);
2672
2
                return AVERROR_INVALIDDATA;
2673
            }
2674
2675
7697757
            if (++sl->mb_x >= h->mb_width) {
2676
202002
                loop_filter(h, sl, lf_x_start, sl->mb_x);
2677
202002
                sl->mb_x = lf_x_start = 0;
2678
202002
                decode_finish_row(h, sl);
2679
202002
                ++sl->mb_y;
2680

202002
                if (FIELD_OR_MBAFF_PICTURE(h)) {
2681
70062
                    ++sl->mb_y;
2682

70062
                    if (FRAME_MBAFF(h) && sl->mb_y < h->mb_height)
2683
17906
                        predict_field_decoding_flag(h, sl);
2684
                }
2685
            }
2686
2687

7697757
            if (eos || sl->mb_y >= h->mb_height) {
2688
                ff_tlog(h->avctx, "slice end %d %d\n",
2689
                        get_bits_count(&sl->gb), sl->gb.size_in_bits);
2690
18087
                er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x - 1,
2691
                             sl->mb_y, ER_MB_END);
2692
18087
                if (sl->mb_x > lf_x_start)
2693
1382
                    loop_filter(h, sl, lf_x_start, sl->mb_x);
2694
18087
                goto finish;
2695
            }
2696
        }
2697
    } else {
2698
4076548
        for (;;) {
2699
            int ret;
2700
2701
4092471
            if (sl->mb_x + sl->mb_y * h->mb_width >= sl->next_slice_idx) {
2702
                av_log(h->avctx, AV_LOG_ERROR, "Slice overlaps with next at %d\n",
2703
                       sl->next_slice_idx);
2704
                er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x,
2705
                             sl->mb_y, ER_MB_ERROR);
2706
                return AVERROR_INVALIDDATA;
2707
            }
2708
2709
4092471
            ret = ff_h264_decode_mb_cavlc(h, sl);
2710
2711
4092471
            if (ret >= 0)
2712
4092471
                ff_h264_hl_decode_mb(h, sl);
2713
2714
            // FIXME optimal? or let mb_decode decode 16x32 ?
2715

4092471
            if (ret >= 0 && FRAME_MBAFF(h)) {
2716
254472
                sl->mb_y++;
2717
254472
                ret = ff_h264_decode_mb_cavlc(h, sl);
2718
2719
254472
                if (ret >= 0)
2720
254472
                    ff_h264_hl_decode_mb(h, sl);
2721
254472
                sl->mb_y--;
2722
            }
2723
2724
4092471
            if (ret < 0) {
2725
                av_log(h->avctx, AV_LOG_ERROR,
2726
                       "error while decoding MB %d %d\n", sl->mb_x, sl->mb_y);
2727
                er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x,
2728
                             sl->mb_y, ER_MB_ERROR);
2729
                return ret;
2730
            }
2731
2732
4092471
            if (++sl->mb_x >= h->mb_width) {
2733
152629
                loop_filter(h, sl, lf_x_start, sl->mb_x);
2734
152629
                sl->mb_x = lf_x_start = 0;
2735
152629
                decode_finish_row(h, sl);
2736
152629
                ++sl->mb_y;
2737

152629
                if (FIELD_OR_MBAFF_PICTURE(h)) {
2738
32143
                    ++sl->mb_y;
2739

32143
                    if (FRAME_MBAFF(h) && sl->mb_y < h->mb_height)
2740
4978
                        predict_field_decoding_flag(h, sl);
2741
                }
2742
152629
                if (sl->mb_y >= h->mb_height) {
2743
                    ff_tlog(h->avctx, "slice end %d %d\n",
2744
                            get_bits_count(&sl->gb), sl->gb.size_in_bits);
2745
2746
12346
                    if (   get_bits_left(&sl->gb) == 0
2747
                        || get_bits_left(&sl->gb) > 0 && !(h->avctx->err_recognition & AV_EF_AGGRESSIVE)) {
2748
12346
                        er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y,
2749
12346
                                     sl->mb_x - 1, sl->mb_y, ER_MB_END);
2750
2751
12346
                        goto finish;
2752
                    } else {
2753
                        er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y,
2754
                                     sl->mb_x, sl->mb_y, ER_MB_END);
2755
2756
                        return AVERROR_INVALIDDATA;
2757
                    }
2758
                }
2759
            }
2760
2761

4080125
            if (get_bits_left(&sl->gb) <= 0 && sl->mb_skip_run <= 0) {
2762
                ff_tlog(h->avctx, "slice end %d %d\n",
2763
                        get_bits_count(&sl->gb), sl->gb.size_in_bits);
2764
2765
3577
                if (get_bits_left(&sl->gb) == 0) {
2766
3577
                    er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y,
2767
3577
                                 sl->mb_x - 1, sl->mb_y, ER_MB_END);
2768
3577
                    if (sl->mb_x > lf_x_start)
2769
2713
                        loop_filter(h, sl, lf_x_start, sl->mb_x);
2770
2771
3577
                    goto finish;
2772
                } else {
2773
                    er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x,
2774
                                 sl->mb_y, ER_MB_ERROR);
2775
2776
                    return AVERROR_INVALIDDATA;
2777
                }
2778
            }
2779
        }
2780
    }
2781
2782
34010
finish:
2783
34010
    sl->deblocking_filter = orig_deblock;
2784
34010
    return 0;
2785
}
2786
2787
/**
2788
 * Call decode_slice() for each context.
2789
 *
2790
 * @param h h264 master context
2791
 */
2792
60085
int ff_h264_execute_decode_slices(H264Context *h)
2793
{
2794
60085
    AVCodecContext *const avctx = h->avctx;
2795
    H264SliceContext *sl;
2796
60085
    int context_count = h->nb_slice_ctx_queued;
2797
60085
    int ret = 0;
2798
    int i, j;
2799
2800
60085
    h->slice_ctx[0].next_slice_idx = INT_MAX;
2801
2802

60085
    if (h->avctx->hwaccel || context_count < 1)
2803
26523
        return 0;
2804
2805

33562
    av_assert0(context_count && h->slice_ctx[context_count - 1].mb_y < h->mb_height);
2806
2807
33562
    if (context_count == 1) {
2808
2809
33112
        h->slice_ctx[0].next_slice_idx = h->mb_width * h->mb_height;
2810
33112
        h->postpone_filter = 0;
2811
2812
33112
        ret = decode_slice(avctx, &h->slice_ctx[0]);
2813
33112
        h->mb_y = h->slice_ctx[0].mb_y;
2814
33112
        if (ret < 0)
2815
2
            goto finish;
2816
    } else {
2817
450
        av_assert0(context_count > 0);
2818
1350
        for (i = 0; i < context_count; i++) {
2819
900
            int next_slice_idx = h->mb_width * h->mb_height;
2820
            int slice_idx;
2821
2822
900
            sl                 = &h->slice_ctx[i];
2823
            if (CONFIG_ERROR_RESILIENCE) {
2824
900
                sl->er.error_count = 0;
2825
            }
2826
2827
            /* make sure none of those slices overlap */
2828
900
            slice_idx = sl->mb_y * h->mb_width + sl->mb_x;
2829
2700
            for (j = 0; j < context_count; j++) {
2830
1800
                H264SliceContext *sl2 = &h->slice_ctx[j];
2831
1800
                int        slice_idx2 = sl2->mb_y * h->mb_width + sl2->mb_x;
2832
2833

1800
                if (i == j || slice_idx2 < slice_idx)
2834
1350
                    continue;
2835
450
                next_slice_idx = FFMIN(next_slice_idx, slice_idx2);
2836
            }
2837
900
            sl->next_slice_idx = next_slice_idx;
2838
        }
2839
2840
450
        avctx->execute(avctx, decode_slice, h->slice_ctx,
2841
                       NULL, context_count, sizeof(h->slice_ctx[0]));
2842
2843
        /* pull back stuff from slices to master context */
2844
450
        sl                   = &h->slice_ctx[context_count - 1];
2845
450
        h->mb_y              = sl->mb_y;
2846
        if (CONFIG_ERROR_RESILIENCE) {
2847
900
            for (i = 1; i < context_count; i++)
2848
450
                h->slice_ctx[0].er.error_count += h->slice_ctx[i].er.error_count;
2849
        }
2850
2851
450
        if (h->postpone_filter) {
2852
            h->postpone_filter = 0;
2853
2854
            for (i = 0; i < context_count; i++) {
2855
                int y_end, x_end;
2856
2857
                sl = &h->slice_ctx[i];
2858
                y_end = FFMIN(sl->mb_y + 1, h->mb_height);
2859
                x_end = (sl->mb_y >= h->mb_height) ? h->mb_width : sl->mb_x;
2860
2861
                for (j = sl->resync_mb_y; j < y_end; j += 1 + FIELD_OR_MBAFF_PICTURE(h)) {
2862
                    sl->mb_y = j;
2863
                    loop_filter(h, sl, j > sl->resync_mb_y ? 0 : sl->resync_mb_x,
2864
                                j == y_end - 1 ? x_end : h->mb_width);
2865
                }
2866
            }
2867
        }
2868
    }
2869
2870
450
finish:
2871
33562
    h->nb_slice_ctx_queued = 0;
2872
33562
    return ret;
2873
}